JP4356397B2 - Panel display - Google Patents

Description

  The present invention relates to a panel type display device including a lightweight and thin display panel module having a large display screen.

  The panel type display device includes a light-weight and thin display panel module such as a plasma display panel (PDP), a liquid crystal display panel, or an electric luminescent light source display panel. Compared with a cathode ray tube (CRT), it achieves a larger display screen, lighter weight, and thinner thickness. For example, a color PDP display device realizes a large display screen of 50 inches or more, and has characteristics such as good image quality and a lightweight and thin shape that can be used as a wall-mounted type. It attracts attention as a broadcast receiver and various large display devices (Patent Document 1).

  As is well known, a color PDP display device is composed of a front filter panel, a panel body in which a large number of discharge cells are formed, and a driving unit combined on the back surface, and a pulse is applied between electrodes arranged in the discharge cells. Color emission display is performed by applying a voltage to generate ultraviolet rays by discharging, and irradiating the ultraviolet rays on the three primary color phosphors of red, green, and blue formed on the front filter panel. A color PDP display device does not require a high-voltage driving unit unlike a color CRT, and has a feature that it can be configured to be a light and thin and a large display screen as described above.

  Also, in the conventional panel type display device, the display panel module is generally housed in a rectangular frame-like casing called a bezel so that its display area faces outward from the rectangular opening, On the other hand, the front glass and the back cover member were combined. A large panel type display device is generally combined with a speaker box in which a plurality of speakers are arranged in the height direction on both sides of a display portion of a bezel. A panel type display device is also provided in which a speaker box is attached to a stand device and configured as a speaker unit independently of the device main body.

JP 2003-174692 A

  By the way, in the panel type display device 100, as shown in FIG. 15, the opaque display having a predetermined width so as to border the effective display area of the display panel module 103 on the inner surface of the front glass 102 disposed on the front surface portion of the bezel 101. A so-called floating display for emphasizing and displaying a display image by forming a transparent black frame 102a and forming a transparent region 102b between the black frame 102a and the inner periphery of the bezel 101 is also illustrated. It has been. In the panel type display device 100, not only the front glass 102 but also the bezel 101 is formed of a synthetic resin material such as a transparent polycarbonate resin.

  The panel display device 100 is configured to further enhance the display effect by providing an optical display unit that optically displays the power-on state and the set function in the transparent region 102b. In the panel type display device 100, the light emitting element unit 104 is attached to an attachment portion 101a formed integrally with the bezel 101 so as to face the black frame portion 102a. The light emitting element unit 104 includes a substrate 105 attached to the attachment portion 101a, a plurality of holder members 106 fixed to the substrate 105, light emitting diodes 107 housed in the holder members 106, and the like.

  In the panel type display device 100, a bezel 101 is integrally formed with a standing wall portion 101b on the back side, and an attachment portion 101a is formed on the inner surface of the standing wall portion 101b so as to face the black frame portion 102a. In the panel type display device 100, the light emitting diode 107 mounted on the light emitting element unit 104 is disposed so as to face the inner peripheral portion of the outer peripheral flange portion 101c of the bezel 101, and the emitted light L is transmitted into the outer peripheral flange portion 101c. To enter. In the panel type display device 100, a reflection portion 101d is formed on the outer peripheral flange portion 101c of the bezel 101 in a transparent region 102b that is out of the black frame portion 102a. In the panel type display device 100, the outgoing light L that has entered the outer peripheral flange portion 101c is refracted and reflected to the front side by the reflecting portion 101d as shown in FIG. 15, and is emitted from the transparent region 102b of the front glass 102 to the outside. And exposed.

  By the way, in the panel type display device 100, the light emitting diode 107 is located on the inner peripheral portion of the rising portion of the standing wall portion 101b of the bezel 101 and is disposed to face the outer peripheral flange portion 101c. In the panel type display device 100, a part M of the emitted light L emitted from the light emitting diode 107 is refracted at the rising portion of the standing wall portion 101b and leaks out of the bezel 101. In the panel type display device 100, the leaked light M hits a speaker or other member inside and makes it visible from the front side through the transparent region 102b, so that the floating display effect is greatly reduced. End up. In the panel type display device 100, particularly when installed in a dark room or the like, the problem of light leakage becomes more prominent.

  In the panel type display device 100, in order to suppress the generation of the leaked light M, it is possible to cope with the formation of the light shielding layer 108 at the rising portion of the standing wall portion 101b. In the panel type display device 100, there is a problem in that a film forming process of the light shielding layer 108 is required for this purpose, and not only the cost is increased but also a sufficient leakage function is not achieved. The panel type display device 100 has a problem in that the display efficiency in the optical display unit is reduced due to a decrease in light amount due to light leakage from the bezel 101.

  On the other hand, in the panel type display device, since a high level electromagnetic wave is radiated from the display panel module, it is possible to cope with electromagnetic shielding. In the panel type display device, for example, an electromagnetic wave shielding layer is formed on the inner surface of the front glass, and the electromagnetic wave shielding layer and the metal back cover member are electrically connected to accommodate the display panel module in the shield space. . In the panel type display device, generally, by providing a ground structure on the inner surface of the bezel, the electromagnetic wave shielding layer of the front glass is electrically connected to the back cover member, and a frame portion having a predetermined width is required. In the conventional panel type display device, when the above-mentioned blindfolded frame portion is formed on the inner peripheral portion of the thick bezel for this purpose, the ratio of the effective display area of the display panel module on the front surface portion is reduced and the display efficiency is improved. There was a problem of getting worse.

  Further, in the panel type display device, the bezel has an exterior function as well as a support function of the display panel module, and also has a function of blinding the outer peripheral portion by cutting off the effective display area of the display panel module. Yes. Therefore, in the panel type display device, the bezel is formed with sufficient mechanical strength and good finishing accuracy for holding a display panel module which is lighter than CRT but has a certain weight. There must be. The panel type display device generally has a complicated shape in which a display panel module, a front glass mounting portion, and the like are integrally formed on a bezel, and is formed of a synthetic resin material in order to reduce weight.

  In conventional panel display devices, the larger the size, the greater the thickness and width of the bezel. Therefore, there is a problem of impressing the overall thickness despite the use of a thin display panel module. And the display efficiency described above is further reduced. In addition, the panel type display device has a problem that the shape of the bezel increases as the size of the display device increases, and the handling property at the time of assembling deteriorates and the assembling efficiency decreases.

  In the panel type display device, such a bezel is molded using a molding machine capable of molding a large product with high performance and a molding die having a high precision and a complicated structure. However, at present, there is no molding machine capable of forming a transparent bezel with high accuracy for a panel type display device having a large display screen of, for example, 30 inches or more, and heating a molding die. However, a special molding process is adopted in which precision molding is performed by taking sufficient time. However, even in such a molding process, it is difficult to mold a bezel having a high-precision finish with an inconspicuous weld line, so that the molding efficiency and yield are poor, and the cost is high because the molding die is extremely expensive. There was a problem.

  Therefore, the present invention follows the characteristics of the floating display structure, with respect to the optical display unit that optically displays the power-on state and the function setting state in the transparent area configured outside the image display area. The present invention has been proposed for the purpose of providing a panel type display device that guides outgoing light emitted from a light emitting element unit without causing light leakage in the inside thereof, thereby improving display efficiency.

  A panel type display device according to the present invention that achieves the above-described object includes a display panel module, a front glass, a light guide bracket member, a frame member, and a light emitting element unit, and an image display area is formed by a blind frame portion. A so-called floating display is performed by trimming the border and forming a transparent region outside the border. The front glass is composed of a panel body formed of a transparent material combined with the front portion of the display panel module, and is opposed to the inner surface of the vicinity region of the outer peripheral portion over the entire outer periphery of the effective display region of the display panel module. As a result, the inside of the corresponding region is blinded, and a blinding frame portion that forms a transparent region is formed between the corresponding region and the outer peripheral portion. The light guide bracket member is formed in a substantially plate shape by a transparent material, provided with a plurality of guide recesses on the inner end portion, and provided with a reflection portion facing each of these guide recesses, facing the transparent region of the front glass. Combined with the back. The frame member is formed in a channel shape having a fitting groove in the length direction, and holds the front glass and the light guide bracket member having an outer peripheral portion fitted in the fitting groove. The light emitting element unit has a plurality of light emitting elements, and is disposed on the back surface portion of the light guide bracket member so that these light emitting elements face each guide recess.

  In the panel type display device, the emitted light emitted from each light emitting element of the light emitting element unit unit facing the opposing guide recess is incident and guided into the light guide bracket member. In the panel type display device, the outgoing light guided through the light guide bracket member is refracted and reflected to the front side by the reflection portion, and is exposed from the optical display portion configured in the transparent region of the front glass. In the panel type display device, the power-on state and various function setting states are displayed by a light spot that shines in a floating state in the transparent region.

  According to the panel type display device according to the present invention configured as described above, the light guide bracket member is arranged in an overlapped state on the back surface portion of the front glass, and a plurality of guide recesses formed in the light guide bracket member. Since the light emitting element unit is arranged with each light emitting element facing inside, the light emitted from each light emitting element is efficiently incident on the inside of the light guide bracket member without light leaking to the surroundings. In addition, the light is guided to the optical display unit without leaking outward from the light guide bracket member. Therefore, according to the panel type display device, a structure that prevents light leakage along the light guide path of the emitted light is unnecessary, and the set state of the predetermined operation function is sufficient in the optical display unit configured in the transparent region. Thus, it becomes possible to display a light spot. Further, in the panel type display device, the light leakage of the emitted light is suppressed in the inside, so that it is possible to prevent the occurrence of inconvenience that the display effect is impaired because the light hits the internal components and appears.

  Hereinafter, a panel type display device (hereinafter abbreviated as a display device) 1 shown in the drawings as an embodiment of the present invention will be described in detail. The display device 1 is a television receiver in which a color plasma display panel (hereinafter referred to as a color PDP) 2 is used as a display panel module to achieve a large screen and a thin screen. As shown in FIG. 1, the display device 1 has speaker boxes 4 </ b> A and 4 </ b> B combined with left and right side portions of a display device main body 3 whose front shape is a horizontally long rectangle, and the display device main body 3 is supported by a stand member 5. Supported. As will be described in detail later, the display device 1 has a front glass 6 arranged in a superimposed state on the front surface of the color PDP 2, and a horizontally oblong blindfold frame portion 6 a formed by applying a black ceramic print to the inner surface of the front glass 6. As a result, the effective display screen area P of the color PDP 2 is trimmed.

  As will be described in detail later, the display device 1 is arranged on the left and right of the first decorative frame member 7 and the second decorative frame member 8 that hold the upper and lower sides of the front glass 6 and the display device main body 3. The speaker box 4A, 4B that holds both side portions of the front glass 6 constitutes an overall frame-like support that holds the outer peripheral portion of the front panel portion. As will be described in detail later, the display device 1 includes a transparent region 10 between the lower side portion of the blindfolded frame portion 6 a and the second decorative frame member 8 by superimposing a light guide bracket member 9 on the back surface of the lower side portion of the front glass 6. The transparent area 10 floats the effective display screen area P of the color PDP 2 so that the floating display is performed. In the display device 1, an optical display unit 11 that optically displays a power-on state, a setting state of each mode, and the like using a light guide bracket member 9 as a light guide member is provided in a part of the transparent region 10.

  As shown in FIG. 2, the display device 1 includes a first bracket member 12 that is combined with the first decorative frame member 7 on the back surface thereof, a second decorative frame member 8, and a light guide bracket member 9. And a second bracket member 13 to be combined with the rear surface portion, and these members constitute a holding member that holds the upper and lower outer peripheral portions of the front glass 5. As shown in FIGS. 3 and 4, the display device 1 has fitting grooves 14 </ b> A and 14 </ b> B in the height direction provided in the speaker boxes 4 </ b> A and 4 </ b> B, and a third bracket member 15 in the fitting grooves 14 </ b> A and 14 </ b> B. And the fourth bracket member 16 are assembled, and these members constitute a holding member that holds the outer peripheral portions on both sides of the front glass 5.

  As shown in FIG. 2, the display device 1 includes a first bracket member 12 and a second bracket member 13 that are fixed to the third bracket member 15 and the fourth bracket member 16 at both ends at the rear surface. Each bracket member constitutes a frame-like body. As shown in FIG. 2, the display device 1 uses the first bracket member 12, the second bracket member 13, the third bracket member 15, and the fourth bracket member 16 combined in a frame-like body as attachment members, and the back cover member 17. And the board bracket member 18 are combined.

  As shown in FIGS. 5 and 6, the color PDP 2 includes a panel portion 19, a filter panel 20 formed of a transparent synthetic resin material integrated in a laminated state on the front surface of the panel portion 19, and a panel portion 19. And a drive circuit portion 21 provided on the back surface portion. Although not described in detail, the color PDP 2 includes a panel body in which the panel portion 19 is formed in a thin block shape by an insulating material. The front side is opened inside the panel body, and a number of discharge cells are formed in, for example, a matrix shape. It is formed in an array. In the color PDP 2, an electrode is formed in each discharge cell of the panel unit 19, and a pulse voltage is selectively applied from the drive circuit unit 21 to each electrode.

  The color PDP 2 emits ultraviolet rays generated by discharge between the electrodes from the discharge cell when a pulse voltage is applied. The color PDP 2 has a red, green, and blue light primary color fluorescent layer formed on the inner surface of the filter panel 20, and color emission display is performed by irradiating the fluorescent layer with ultraviolet rays emitted from the inside of the discharge cell. In the color PDP 2, the filter panel 20 is larger than the panel portion 19, and although the details are omitted, the first bracket member 12, the second bracket member 13, the third bracket member 15, and the fourth bracket member described above are provided on the outer peripheral portion. A mounting portion to be attached to 16 is formed.

  The display device 1 is not limited to the color PDP 2 having the above-described configuration, and a color PDP having various structures can be used. The display device 1 can also use a display panel module such as a liquid crystal display panel or an electric luminescence display panel, for example, instead of the color PDP.

  The speaker boxes 4A and 4B are formed symmetrically, and the configuration of the left speaker box 4A will be described as a representative with reference to FIG. The speaker box 4 is a combination of a cover sheet 22, a front panel 23, and a box main body 24, although details are omitted. The speaker box 4 includes a high sound speaker 26, a medium sound speaker 27, and a low sound speaker 28, which are arranged in the height direction inside the box body 24. In the speaker box 4, sound emission holes are formed on the front panel 23 so as to face the speakers 26 to 28, respectively, and the cover sheet 22 is combined to prevent dust or design.

  The speaker box 4 is integrated with the box main body 24 by abutting the front panel 23. The speaker box 4 is opened over the entire region in the height direction on the side surface facing the display device main body 3 at the abutting portion. Thus, the above-described fitting groove 14 is configured. Although not described in detail, the fitting groove 14 is partitioned by a partition wall with respect to each sound emitting hole, and is extended so as to form a concave portion in the side surface direction on the upper surface and the bottom surface of the speaker box 4. As shown in FIG. 4, the fitting groove 14 is formed so that the end portions 8 a and 8 b of the first decorative frame member 7 and the end portions 9 a and 9 b of the second decorative frame member 8 form the same surface in these recesses. Mating.

  Although not described in detail, the speaker box 4 is integrally formed on the inner surface of the front panel 23 so as to face the fitting groove 14 and be aligned in the height direction. The speaker box 4 is assembled over the substantially entire length in the height direction in the fitting groove 14 by attaching the third bracket member 15 and the fourth bracket member 16 to the front panel 23 through the respective attachment portions. As will be described later, the speaker box 4 holds both side portions of the front glass 6 in the fitting groove 14 over substantially the entire length in the height direction. In the speaker box 4, mounting portions 24a and 24b (see, for example, FIGS. 2 and 5) are appropriately formed in the box main body portion 24, and the display device main body portion 3 and the back cover member 17 are interposed through the mounting portions 24a and 24b. Fixed to.

  The front glass 6 is formed to be larger than the filter panel 20 of the color PDP 2 described above by using not only glass but also a resin material such as transparent polycarbonate resin or acrylic resin. Although the details are omitted on the front glass 6, the entire surface is prevented from being scratched and the reflection of external light is prevented to reduce the influence of external light so that a good image display is performed. Are joined. The front glass 6 has an infrared absorbing film bonded to the inner surface, although details are omitted.

  As shown in FIGS. 11 and 12, the front glass 6 is provided with an electromagnetic shielding layer 29 on almost the entire inner surface in order to cope with electromagnetic wave shielding. The electromagnetic shielding layer 29 is formed of a copper fine wire mesh layer formed by, for example, forming a copper foil layer on the inner surface of the front glass 6 and subjecting the copper foil layer to a photoetching process. As will be described later, the electromagnetic shielding layer 29 is electrically connected to the back cover member 17 via the first bracket member 12, the third bracket member 15, or the fourth bracket member 16, so that the color PDP 2 is placed in the shield space. So that it can be stored.

  As described above, the front glass 6 has a blind frame 6a formed on the inner surface. As will be described in detail later, the blindfold frame portion 6a has an inner peripheral portion facing the outer peripheral portion of the effective display screen region P of the color PDP 2 and other outer peripheral portions excluding the lower piece portion extending to the outer peripheral portion of the front glass 6. It is formed with the existing width. Accordingly, the blindfolded frame portion 6a includes the first bracket member 12, the third bracket member 15 or the fourth bracket member 16, and the back cover member 17 assembled to the first decorative frame member 7 and the back portions of the speaker boxes 4A and 4B. So that the attachment site is not visible from the front side.

  As will be described in detail later, the blindfold frame portion 6a is formed narrower than the conventional device depending on the mounting structure of each bracket member and the back cover member 17 and the shape of the back cover member 17. By making the blindfold frame portion 6a narrow, it is possible to improve the effective area efficiency of the display surface, and it is possible to print with high accuracy without variation in thickness.

  The first decorative frame member 7 is formed into a bar-like long member having a total length substantially equal to the length in the longitudinal direction of the front glass 6 by using a metal material such as aluminum. Since the 1st decorative frame member 7 comprises an exterior material as mentioned above, surface treatments, such as a hairline process and an alumite (brand name) process, are given. As shown in FIG. 7, the first decorative frame member 7 is formed integrally with the ceiling portion 30 by being bent at right angles over the entire length along both widthwise end portions of the ceiling portion 30. The front wall 31 and the holding wall 32 are formed into a channel shape, and a fitting groove 33 having a predetermined width is formed between the front wall 31 and the holding wall 32.

  In addition, the 1st decoration frame member 7 comprises the edge part 8a, 8b mentioned above which fits with the fitting groove 14 of the speaker box 4 by projecting the both ends of the ceiling part 30 in bowl shape. The first decorative frame member 7 may be configured such that attachment holes are formed in these end portions 8 a and 8 b and screwed to the speaker box 4.

  As shown in FIG. 8, the first decorative frame member 7 has a holding wall portion 32 that is wider than the front wall portion 31. The first decorative frame member 7 has a plurality of mounting holes 34 formed in the holding wall 32 as shown in FIG. 1A, and the first bracket member 12 extends along the back surface of the first decorative frame member 7 through the mounting holes 34. To be installed. The first decorative frame member 7 has a plurality of positioning convex portions 35 shown in FIG. 5B and a plurality of positioning concave portions 36 shown in FIG. The first bracket member 12 is positioned and attached.

  In the first decorative frame member 7 configured as described above, as shown in FIG. 8C, the front wall portion 31 is positioned on the front surface side, and the upper side portion of the front glass 6 is placed in the fitting groove 33. Are fitted over the entire length. As described above, the first decorative frame member 7 forms the holding wall portion 32 wider than the front wall portion 31 so as not to give a wide feeling of the frame body on the front side, and on the front side on the back side. By holding the glass 6 firmly, the upper side holding member is formed. The first decorative frame member 7 is configured such that the wide holding wall portion 32 is blinded by the blindfold frame portion 6a of the front glass 6, so that the mounting hole 34 described above, the positioning convex portion 35 or the positioning concave portion 36, and the first bracket The member 12 is not visually recognized from the front side.

  The second decorative frame member 8 is also formed into a bar-like long member having a total length substantially equal to the length in the longitudinal direction of the front glass 6 by a metal material such as aluminum, for example, and a hairline process or an alumite (trade name) process. Etc. are subjected to surface treatment. As shown in FIG. 8, the second decorative frame member 8 is integrally formed by being bent at right angles over the entire length along both end portions in the width direction of the bottom surface portion 37. The front wall 38 and the holding wall 39 have a channel shape, and a fitting groove 40 having a predetermined width is formed between the front wall 38 and the holding wall 39.

  As shown in FIG. 9B and FIG. 9D, the second decorative frame member 8 has a large number of mounting holes 41 formed in the holding wall portion 39, and the inner surface portion of the holding wall portion 39 has the same As shown in FIG. 3C, the positioning convex portion 42 is formed. Since the second decorative frame member 8 includes the transparent region 10 along the lower side portion of the front glass 6 in order to perform floating display as described above, the holding wall portion 39 is not visible from the front side. The front wall portion 38 is formed to have substantially the same width. Also, the second decorative frame member 8 also has the end portions 9 a and 9 b that are fitted into the fitting grooves 14 of the speaker box 4, with both end portions of the bottom surface portion 37 protruding in a bowl shape.

  As shown in FIG. 9C and FIG. 9D, the second decorative frame member 8 configured as described above has the front wall 38 positioned on the front side and is fitted in the fitting groove 40. The front glass 6 and the light guide bracket member 9 that are in an overlapped state are fitted over the entire length of their lower sides. A second bracket member 13 is attached to the second decorative frame member 8 via a light guide bracket member 9 along the back surface portion thereof.

  The light guide bracket member 9 is formed into a generally plate-like long member having an overall length substantially equal to the length in the longitudinal direction of the front glass 6 by a resin material such as transparent polycarbonate resin or acrylic resin. As described above, the light guide bracket member 9 constitutes the transparent region 10 for performing the floating display in the lower side portion of the display surface, and a part of the light guide bracket member 9 is constituted as the optical display portion 11 and will be described later. It functions as a light guide member that guides the emitted light L emitted from 43.

  The width of the light guide bracket member 9 is slightly narrower than the distance from the lower side portion of the front glass 6 to the inner peripheral portion of the blindfold frame portion 6a, and the outer side end portion 9a is the second decorative frame member described above. 8 is fitted into the fitting groove 40 together with the front glass 6. A plurality of mounting bosses 44 are integrally formed on the inner surface of the light guide bracket member 9 along the inner side end portion 9b as shown in FIG.

  As shown in FIG. 9A, the light guide bracket member 9 is integrally provided with reinforcing ribs 45 and 46 in the longitudinal direction at a predetermined interval from the inner end portion 9b as shown in FIG. 9A. . The light guide bracket member 9 is improved in strength in the thickness direction by the reinforcing ribs 45 and 46 so that the occurrence of bending in the length direction is suppressed even when the light guide bracket member 9 is formed thin. Further, the reinforcing rib 45 defines the combination position by abutting the opening edge of the back cover member 17 combined on the back surface portion of the light guide bracket member 9 as will be described later. The light guide bracket member 9 is formed such that the inner end side reinforcing ribs 45 are connected to each other between the mounting bosses 44, and between each mounting boss 44 and the outer end side reinforcing ribs 46 are also orthogonal ribs. The strength of each mounting boss 44 is improved by providing them continuously.

  An assembly portion 47 of the light emitting element unit 43 is integrally formed on the light guide bracket member 9. The assembling portion 47 is formed on a plurality of guide concave portions 48 formed so as to be cut from the inner end portion 9 b so as to face the optical display portion 11, and on the inner surface of the guide concave portion 48. And a plurality of mounting bosses 50 integrally formed on the inner surface across the guide recess 48. Each guide recess 48 is formed of a substantially U-shaped recess formed such that the bottom is cut beyond the reinforcing rib 46, and constitutes an incident portion of the emitted light L emitted from the light emitting element unit 43. .

  The reflection concave portion 49 is gradually increased in depth from the inner end portion 9b side to the outer end portion 9a side, and an inner surface facing the guide concave portion 48 side with the outer end portion 9a side being a vertical surface is a vertical wall. The reflecting surface 53 is configured by a concave portion having a right-angled triangular cross-section and a bottom surface portion having an inclination angle of 45 °. The details of the reflection concave portion 49 will be described later with reference to FIG. 14, but the reflected light 53 is refracted by 90 ° at the reflection surface 53 and is emitted from the bottom of the guide concave portion 48 and guided through the light guide bracket member 9. Light is guided to the front side.

  The light guide bracket member 9 is also formed with a light receiving recess 51 that constitutes a light receiving portion for an infrared signal emitted from the remote controller along with the guide recess 48. In addition, the light guide bracket member 9 forms a mounting portion 9c in which the both end portions fitted to the fitting groove 14 of the speaker box 4 described above in the combined state are slightly thickened. The light guide bracket member 9 has a plurality of attachment holes 52 formed in the attachment portion 9c. Although not shown in the drawings, the light guide bracket member 9 is printed with a display unit that displays the function on the surface side so as to face each reflective recess 49.

  As described above, in the display device 1, the first decorative frame member 7 and the second decorative frame member 8 are combined with the first bracket member 12 and the second bracket member 13, respectively, and the left and right speaker boxes 4A and 4B are combined. The third bracket member 15 and the fourth bracket member 16 are combined. The first bracket member 12 and the second bracket member 13 have the same length, and are longer than the third bracket member 15 and the fourth bracket member 16 having the same length. The bracket members 12, 13, 15, and 16 are formed with substantially the same basic shape although the structures of the details are slightly different. Accordingly, the second bracket member 13 shown in FIG. 10 will be described as a representative and the description of the other bracket members 12, 15, 16 will be omitted.

  The 2nd bracket member 13 is formed in the bar-shaped elongate member which has the full length substantially equal to the length of the longitudinal direction of the front glass 6, for example with stainless steel material or steel materials. The first bracket member 12 is also formed to have an overall length substantially equal to the length in the longitudinal direction of the front glass 6, but the third bracket member 15 and the fourth bracket member 16 are long in the width direction of the front glass 6. And has a total length approximately equal to

  The second bracket member 13 includes a base portion 54 that is integrally formed, a holding portion 55, a first attachment portion 56, and a second attachment portion 57. As shown in FIG. 10, the second bracket member 13 is bent at a right angle over the entire length in the length direction along one side edge of the plate-like base portion 54, whereby the holding portion 55 is formed. It is integrally formed. As will be described later, the holding portion 55 is pressed against the front glass 6 in the vicinity of the outer peripheral portion of the inner surface to hold the front glass 6. In addition, the holding portion 55 is brought into electrical contact with the electromagnetic shielding layer 29 formed on the inner surface of the front glass 6 in this state.

  The second bracket member 13 is integrally formed with the first attachment portion 56 by being bent along the one side edge of the base portion 54 at a right angle over the entire length in the length direction. The second bracket member 13 has a substantially crank-shaped cross section as shown in FIG. 10C by making the bending direction of the first mounting portion 56 with respect to the base portion 54 opposite to the bending direction of the holding portion 55. It is formed with a shape. The second bracket member 13 constitutes an attachment portion for the back cover member 17 as will be described later.

  The second bracket member 13 forms a second attachment portion 57 by forming a pair of slits in the width direction from the first attachment portion 56 to the base portion 54, and bending the uncut pieces between the slits. It becomes. The second bracket member 13 has a plurality of second mounting portions 57 formed at a plurality of locations, and constitutes a mounting portion of the board bracket member 18 as will be described later.

  In the display device 1, the second bracket member 12 is fixed to the back surface portion of the light guide bracket member 9 superimposed on the front glass 6 through the second decorative frame member 8 as described later. Therefore, the second bracket member 12 is fixed to the mounting boss 44 in which the first mounting portion 56 and the second mounting portion 57 are formed integrally with the light guide bracket member 9, and the front glass is interposed through the light guide bracket member 9. 6 and the holding part 55 is joined to the electromagnetic shielding layer 29.

  On the other hand, the first bracket member 12 has the front glass 6 sandwiched in the fitting groove 33 of the first decorative frame member 7 so that the holding wall portion 32 is directly attached to the first attachment portion 56 or the second attachment portion 57. Fix it. In addition, the third bracket member 15 and the fourth bracket member 16 have the first attachment portion 56 or the second attachment portion 57 fixed to the attachment portion formed in the box body portion 24 of the speaker box 4.

  The back cover member 17 is formed into a generally bottomed box shape having an opening portion having a diameter slightly smaller than the outer shape of the front glass 6 by pressing a lightweight metal material such as aluminum. The back cover member 17 stores the color PDP 2 in the shield space in cooperation with the electromagnetic shielding layer 29 of the front glass 6 by fixing the opening portion to each bracket member 12, 13, 15, 16 as described later. To do.

  Although not described in detail, the back cover member 17 is appropriately formed with a connector for connecting a power cord and an antenna cable, and an opening for allowing the input / output terminal portion to face outward, and a plurality of small holes for heat dissipation and reinforcement. Ribs and the like are formed. The back cover member 17 is formed such that the outer peripheral wall portion 58 rises in a substantially vertical state with respect to the back surface portion, and has a minimum clearance sufficient to maintain insulation with built-in components such as the color PDP 2. Has been. Since the back cover member 17 is formed from deep drawing to press bending to a conventional metal material, the processing cost can be greatly reduced and the shape can be made relatively free, and the component accuracy can be improved. Be improved.

  In the back cover member 17, a mounting flange portion 59 is integrally bent at the opening edge of the outer peripheral wall portion 58 over the entire circumference. The back cover member 17 is formed so that the mounting flange portion 59 is overlapped with the first mounting portion 56 of each bracket member 12, 13, 15, 16 combined in a frame shape. A large number of attachment holes (not shown) are formed in the attachment flange portion 59 so as to face the attachment holes 58 formed in the first attachment portion 56 and the attachment bosses 44 formed in the light guide bracket member 9.

  As shown in FIGS. 11 and 12, the back cover member 17 is bent so as to rise from the front end portion of the mounting flange portion 59 to the front surface side, and the abutting end portion 60 is bent. The abutting end 60 is abutted against the outer peripheral surface of the reinforcing rib 46 formed on the light guide bracket member 9 in a state where the back cover member 17 is combined with each bracket member 12, 13, 15, 16.

  The board bracket member 18 is combined with the back side of the color PDP 2, and a circuit unit 61 such as a control circuit for the color PDP 2, an input / output circuit that processes received radio waves, a tuner circuit, and a signal processing circuit is mounted although details are omitted. The A plurality of attachment pieces 62 are integrally formed on the outer peripheral portion of the board bracket member 18 so as to face the second attachment portions 58 formed on the bracket members 12, 13, 15, 16 described above. The board bracket member 18 is fixed to the second attachment portion 58 of each bracket member 12, 13, 15, 16 by the attachment screw 64 together with the back cover member 17 as will be described later.

  The light emitting element units 43 are respectively attached to attachment portions formed on the substrate bracket member 18 so as to face the light emitting display portion 11. The light emitting element unit 43 includes a mounting board 65 which is appropriately connected to the board bracket member 18 and attached thereto, a plurality of holder members 66 and a plurality of light emitting diodes 67 mounted on the mounting board 65, and a light receiving element. And an element 68. Note that a plurality of light emitting element units 43 are provided corresponding to each light emitting display unit 11 provided in the display device 1. In the light emitting element unit 43, the light emitting diode 67 emits the emitted light L having a different color tone such as green or red so that the light emitting display unit 11 is displayed with the light spot having a different color tone for each function.

  As shown in FIG. 14, the mounting board 65 is formed with mounting holes 65 a and positioning holes 65 b for positioning and assembling the holder member 66. The attachment board 65 is attached to the board bracket member 18 so as to face the front glass 6 in parallel. Of course, the attachment substrate 65 is attached to the substrate bracket member 18 so as to be concealed from the front side by the blindfold frame portion 6a formed on the front glass 6.

  Each holder member 66 is integrally formed of a resin material having a light shielding characteristic such as black, and is formed with a wedge-shaped lock piece 66a and a positioning convex portion 66b, and a storage portion 66c for storing and holding the light emitting diode 67, and a light emitting device. A circular emission hole 66d for narrowing and emitting the outgoing light L emitted from the diode 67 is provided. The holder member 66 is attached to the attachment substrate 65 by fitting the lock piece 66a into the attachment hole 65a and fitting the positioning protrusion 66b into the positioning hole 65b. In this state, the holder member 66 is combined with the exit hole 66 d in each guide recess 48 of the light guide bracket member 9, and the exit hole 66 d is opposed to the tip of the guide recess 48.

  Each holder member 66 stores and holds a light emitting diode 67 in the storage portion 66c with the output surface facing the output hole 66d. Each of the light emitting diodes 67 is held in its inner space with the outer peripheral portion held by the inner peripheral wall of the storage portion 66c, and the lead drawn from the opening side of the storage portion 66c is connected to the land formed on the mounting substrate 65. . Each light emitting diode 67 is supplied with a driving voltage from the circuit unit 61 through a pattern formed on the mounting substrate 65. The light emitting diode 67 emits light when a driving voltage is applied, and emits the emitted light L from the emission hole 66d. The emitted light L is guided from the tip of the guide recess 48 to the inside of the light guide bracket member 9, is refracted by the reflection surface 53, and irradiates the inner surface of the front glass 6 to shine the portion.

  In the display device 1, as described above, the front glass 6 is sandwiched at the upper side by the first decorative frame member 7, and the first bracket member 12 is fixed to the back surface of the first decorative frame member 7. . In the display device 1, the first bracket member 12 is electrically connected to the electromagnetic shielding layer 29 formed on the front glass 6, and the upper side portions of the back cover member 17 and the substrate bracket member 18 are fixed. In the display device 1, the front glass 6 is fitted into the fitting groove 14 of each speaker box 4 on both sides, and the third bracket member 15 and the fourth bracket member 16 assembled to each speaker box 4 are on the front surface. It is electrically connected to the electromagnetic shielding layer 29 formed on the glass 6. In the display device 1, the left and right side portions of the back cover member 17 and the substrate bracket member 18 are fixed to the third bracket member 15 and the fourth bracket member 16, respectively.

  In the display device 1, the transparent region 10 is formed on the lower side of the front glass 6 as described above. Therefore, in the display device 1, as shown in FIGS. 11 and 12, the holding portion 56 of the second bracket member 13 pressed against the electromagnetic shielding layer 29, and the back cover member attached via the second bracket member 13. 17 and the mounting portion of the board bracket member 18 are configured to be hidden by the blindfold frame portion 6a so that they are not visible from the outside.

  In the display device 1, as described above, the mounting boss 44 is formed along the inner end portion 9 b of the light guide bracket member 9, so that the mounting portions of the back cover member 17 and the substrate bracket member 18 are arranged on the outer peripheral portion of the color PDP 2. It will be performed at a close position. In the display device 1, the reinforcing ribs 45 and 46 are formed on the light guide bracket member 9 formed of a transparent synthetic resin material, so that the mechanical strength is sufficiently maintained, and the back cover member 17 and the substrate bracket member 18 are formed. It can be attached.

  Further, in the display device 1, as described above, the back cover member 17 is press bent to a metal material and the outer peripheral wall portion 58 is formed as a substantially vertical wall, whereby the structure close to the outer peripheral portion of the color PDP 2. It has become. Therefore, in the display device 1, it is possible to form the blindfold frame portion 6a so that the width W of the blindfold frame portion 6a is about 20% narrower than the conventional one. In the display device 1, the transparent region 10 is formed on the outer peripheral portion of the blindfold frame portion 6 a only at the lower side portion of the front glass 6, and the floating display structure is employed. For example, the transparent region 10 is formed over the entire periphery. In this case, a configuration using the light guide bracket member 9 described above may be employed.

  In the display device 1, an optical display unit 11 is provided in the transparent region 10 of the front glass 6 and displays a light-on state such as the power-on state. The display device 1 is configured such that the emitted light L emitted from the light emitting diode 67 is efficiently guided while suppressing light leakage in the light guide bracket member 9. In the display device 1, as shown in FIGS. 13 and 14, the light guide bracket member 9 is superimposed on the back surface of the front glass 6, and the superimposed state is held by the second decorative frame member 8. In the display device 1, the light emitting element unit 43 is attached to the substrate bracket member 18, and in this state, each holder member 66 faces the guide recess 48 of the light guide bracket member 9.

  In the display device 1, the emission holes 66 a of the holder members 66 face each other in the vicinity of the front ends of the opposing guide recesses 48, and the emitted light L of the light emitting diodes 67 emitted from the emission holes 66 a is guided. The light is directly guided into the bracket member 9. In the display device 1, the guide concave portion 48 is formed with the distal end portion cut inwardly of the reinforcing ribs 45 and 46, and the emitted light L is a plate-like portion having no deformation portion of the light guide bracket member 9. The occurrence of diffusion is suppressed by guiding the inside. Further, in the display device 1, the emitted light L is incident in a vertical state from the end face of the light guide bracket member 9.

  In the display device 1, as indicated by an arrow in FIG. 14, the emitted light L is guided through the light guide bracket member 9 and reaches the reflection surface 53 formed on the inner surface facing the optical display unit 11 to be reflected. In the display device 1, as described above, the reflecting surface 53 is formed as an inclined surface having an inclination angle of 45 ° with respect to the incident direction. The light is guided to the front side by being refracted. In the display device 1, the emitted light L is guided to the front glass 6 through the light guide bracket member 9 so as to perform spot-like light spot display on the optical display unit 11.

  In the display device 1, as described above, the emitted light L from each light emitting diode 67 is efficiently guided into the light guide bracket member 9 without causing light leakage, and in the light guide bracket member 9. The light is guided in a stable state without causing light leakage. Therefore, in the display device 1, a predetermined operation function setting state or the like is displayed with a sufficient amount of light on the optical display unit 11 configured in the transparent region 10. Further, in the display device 1, as described above, the light leakage of the emitted light L is suppressed, so that there is an inconvenience that the display effect is impaired because the light hits the internal components. Is prevented.

  In the display device 1, the third bracket member 15 and the fourth bracket member 16 are assembled to each speaker box 4 having the fitting groove 14 and the front glass 6 is held, but each speaker box 4 is removed. It can also be installed on a speaker stand. In the display device 1, in this case, side decorative frame members that hold both side portions of the front glass 6 are assembled.

  The side decorative frame member is substantially the same length as the height (width) of the front glass 6, and a decorative frame member formed in substantially the same shape as the first decorative frame member 7 described above is used. Further, when the side decorative frame member forms transparent regions on both side portions of the front glass 6, the decorative frame member and the light guide bracket member 9 formed in substantially the same shape as the second decorative frame member 8 described above. Are combined with a light guide bracket member formed in substantially the same shape.

  The display device 1 is a television receiver in which an input / output circuit for processing received radio waves and a circuit unit 61 of a tuner circuit are mounted on the board bracket member 18. However, for example, it may be a large monitor device. It is.

  In the display device 1, the light emitting display unit 11 is configured in the transparent region 10 configured along the lower side portion of the display surface. For example, a transparent region is configured between the upper side portion and the speaker box 4 to emit light. A display unit may be provided. In the display device 1, the above-described configuration of the front glass 6 and the light guide bracket member 9 is applied to such a part.

It is a front view of the panel type display device shown as an embodiment. It is a rear view of a panel type display apparatus. It is a top view of a panel type display apparatus. It is a principal part enlarged plan view of a panel type display apparatus. It is the disassembled perspective view seen from the front side for demonstrating the main structures of a panel type display apparatus. It is a disassembled perspective view seen from the same side. The 1st decorative member which comprises the exterior | packing material of an upper side part is shown, The figure (A) is a front view, The figure (B) is a top view, The figure (C) is an enlarged longitudinal cross-sectional view. The 2nd decorative member which comprises the exterior | packing material of a lower part is shown, The same figure (A) is a top view, The same figure (B) is a front view, The same figure (C) and the same figure (D) are expanded longitudinal sectional views. is there. The light guide bracket member is shown, in which FIG. (A) is a rear view and FIG. (B) is a side view. The bracket member is shown, in which (A) is a front view, (B) is a plan view, and (C) is an enlarged side view. It is a principal part longitudinal cross-sectional view explaining the attachment structure of a lower side site | part. It is the principal part longitudinal cross-sectional view which expanded and showed the attachment structure. It is a disassembled perspective view explaining the structure of an optical display part. It is a principal part longitudinal cross-sectional view explaining an optical display part. It is a principal part longitudinal cross-sectional view of the conventional panel type display apparatus.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Panel type display apparatus, 2 Color plasma display panel, 3 Display apparatus main-body part, 4 Speaker box, 6 Front glass, 6a Blindfold frame part, 7 1st makeup | decoration frame member, 8 2nd makeup | decoration frame member, 9 guidance Optical bracket member, 10 transparent region, 11 optical display portion, 12 first bracket member, 13 second bracket member, 14 fitting groove, 15 third bracket member, 16 fourth bracket member, 17 back cover member, 18 substrate bracket Member, 19 Panel section, 20 Filter panel, 21 Drive circuit section, 24 Box body section, 29 Electromagnetic shielding layer, 30 Ceiling section, 31 Front wall section, 32 Holding wall section, 33 Fitting groove, 37 Bottom section, 38 Front panel Wall part, 39 Holding wall part, 40 Fitting groove, 43 Light emitting element unit, 44 Mounting boss, 45, 46 Strong rib, 47 Assembly part, 48 Guide concave part, 49 Reflective concave part, 53 Reflective surface, 54 Base part, 55 Holding part, 56 First attachment part, 57 Second attachment part, 58 Outer peripheral wall part, 59 Attachment flange part, 60 Abutting end, 62 mounting piece, 63 mounting, 65 substrate, 66 holder, 67 light emitting diode

Claims (3)

A display panel module;
It consists of a panel body formed of a transparent material combined with the front part of the display panel module, and is opposed to the inner surface of the area in the vicinity of the outer peripheral part over the entire outer periphery of the effective display area of the display panel module. A front glass that blindfolds the inside of the corresponding area and forms a blindfold frame part that constitutes a transparent area between the outer peripheral part, and
A plurality of guide recesses formed in an inner end portion that is formed in a substantially plate shape by a transparent material and is blinded by the blindfold frame portion, and a plurality of guide recesses provided in the constituent regions of the transparent region on the extension of these guide recesses A light guide bracket member that has a reflective portion and is combined with the back portion of the front glass;
A frame member that is formed in a channel shape having a fitting groove in the length direction and that holds the front glass and the light guide bracket member that are fitted with an outer peripheral portion in the fitting groove,
A plurality of light emitting elements, and a light emitting element unit disposed on the back surface of the light guide bracket member so as to face each of the light emitting elements in the respective guide recesses,
The emitted light emitted from the light emitting element of the light emitting element unit is guided from the guide recess to the inside of the light guide bracket member, and is refracted and reflected to the front side by the reflecting portion. A panel-type display device that is exposed from an optical display unit configured in a transparent region.   The light guide bracket member is configured as a plate-shaped portion at least between the guide concave portion and the reflecting portion, and the emitted light emitted from the light emitting element of the light emitting element unit is perpendicular to the distal end portion of the guide concave portion. 2. The panel type display device according to claim 1, wherein the panel type display device is incident. The holding panel and the display panel module, which are combined with the back surface of the light guide bracket member over substantially the entire length in the length direction, and are abutted against the inner surface of the front glass near the outer peripheral portion in the region facing the blindfold frame. A bracket member integrally formed through a base with a mounting portion for fixing
A back cover member that is formed in a substantially box shape as a whole and attaches a flange portion formed on the outer peripheral wall portion to the attachment portion of the bracket member to cover the back surface portion of the display panel module;
A mounting portion in which the mounting portion of the bracket member and the flange portion of the back cover member are integrally formed on the back surface portion of the light guide bracket member along a vicinity position along the inner edge facing the blindfold frame portion. Fixed to
The panel type display device according to claim 1, wherein the guide concave portion is formed with a tip end portion to which the emitted light emitted from the light emitting element is incident positioned outside the attachment portion.

Images