JP6505626B2 - Display unit and clock display unit - Google Patents

Description

  The present invention relates to a display unit and a clock display unit.

  With regard to a timepiece display unit using a light emitting diode (LED) as a display device, there are, for example, Patent Documents 1 and 2 listed below.

  In Patent Document 1, the hour display LED and the minute display LED are disposed on the back side of the dial, and only when the hour display LED and the minute display LED are lit, the light of those LEDs watermarks the dial and the characters thereof There has been proposed an LED display watch formed with a light transmittance that can be viewed from the back side of the plate.

  Further, in Patent Document 2, in a display device used for an electronic watch etc., a display such as a pattern, characters, and a picture appear clear and bright when the backlight is turned on, but such a pattern, characters, and pictures are not visible when the backlight is turned off. An apparatus has been proposed.

JP, 2008-151627, A Japanese Patent Application Laid-Open No. 11-223680

  With regard to the clock display unit incorporated into a large display panel used at the airport, there is a demand for emphasizing design and making it visible only when lit and not visible when turned off. In a clock display unit using an LED as a display device, there are a display method in which the LED is directly brought to the front and a display method in which a diffusion plate is provided on the front. In these methods, when not lit, the unlit LED can be directly seen, or the color such as milky white of the diffusion plate can be seen.

  Also, in a clock display unit incorporated into a large display panel, the display elements of each of the seven segments that constitute seven segments displaying one decimal digit Arabic numeral are made up of a plurality of LED clusters to ensure sufficient brightness. Need to configure.

  On the other hand, seven segments (seven-segment display) have ten types of Arabic numerals “0, 1, 2, 3” by selectively lighting each segment arranged at a position where one decimal digit numeral can be expressed. , 4, 5, 6, 7, 8, 9 "can be expressed. When seven segments are used for the clock display unit, the displayed time is “00:00” to “23:59”. The ten digits of the hour indicate any one of the characters "0, 1, 2". The first digit of the hour indicates one of the characters "0, 1, 2, 3, 4, 5, 6, 7, 8, 9". Since the display of the minutes is "00" to "59", the tenth digit of the minute indicates one of the characters "0, 1, 2, 3, 4, 5," The digit of indicates one of the characters "0, 1, 2, 3, 4, 5, 6, 7, 8, 9".

  As described above, each segment constituting the 10th digit, the 1st digit, the 10th digit, and the 1st digit has a segment with high lighting frequency and a segment with low lighting frequency. The speed of luminance degradation differs depending on the lighting frequency. As a result, the variation in luminance among the seven segments constituting the seven segments becomes large.

  However, the conventional watch display unit is one watch display unit at "00:00", for example, which displays hours and minutes. In the case of variations in luminance among the segments, in the conventional clock display unit, the entire clock display unit is replaced. Therefore, when the luminance degradation appears only in a part of the seven segments, it is necessary to replace the entire clock display unit including the segments not having the luminance degradation, and there is a problem that the replacement cost becomes high.

  Then, an object of the present invention is to provide a display unit and a clock display unit in which reliability and maintainability are taken into consideration while emphasizing design.

  The display unit according to the first aspect of the present invention includes a case having a hole at a position of 7 segments, a 7-segment LED substrate mounted from behind in each hole of the case, and a front in each hole of the case And a diffusion lens for diffusing light emitted from the plurality of LEDs on the LED substrate in the front direction, and a front panel disposed in front of the diffusion lens and having an aperture at the position of the seven segments , And each of the LED substrates is replaceable in units of segments.

  The display unit of the second side is a case having a hole at the 7-segment position, a 7-segment integrated LED substrate attached from the rear of the case, and the holes of the case fitted from the front, The diffusing lens for diffusing light emitted from the plurality of LEDs on the substrate in the front direction, and the front panel disposed in front of the diffusing lens and having an aperture at the position of the seven segments; It is characterized in that the LED substrate is replaceable in units of one digit.

The clock display unit of the third aspect comprises a first display unit of 7 segments displaying numbers of 10 digits of time, and a second display unit of 7 segments displaying numbers of digit of 1 digit of time; A third display unit for displaying dots, a fourth display unit of 7 segments for displaying numbers of 10 digits of minutes, and a fifth display unit of 7 segments for displaying numbers of digit of 1/10 digits A diffusion lens disposed in front of the light emitting surface of the first to fifth display units and diffusing light output from the first to fifth display units, and disposed in front of the diffusion lens a front panel open hole at the position of the 7 segments of the first to fifth display unit, wherein affixed to the surface of the diffusion lens has a large number of pores and the front panel of the same color Open sheet of L, L At the time D off exhibits a display state having unity with the front panel, at the time of LED lighting exhibits a display state as segments emerge corresponding to the lit LED by passing light through the pores It includes a hole sheet, the said first to fifth display unit is characterized by incorporating a replaceable LED substrate segment units of the plurality of LED is paved.

  According to the display unit of the present invention, the LED substrates can be replaced in units of segments or units of digits.

  Furthermore, according to the watch display unit of the present invention, it is possible to realize a watch display unit that looks with unity with the casing when the LED is turned off, and when the LED is lit, the numbers appear to be floating.

5 is an assembly view of a display unit of Embodiment 1. FIG. 5 is a completed view of the display unit of Embodiment 1. FIG. 5 is a rear view of the display unit of Embodiment 1. FIG. FIG. 7 is a diagram for explaining a method of replacing the LED substrate of the display unit of Embodiment 1. 7 is an assembly view of a display unit of Embodiment 2. FIG. 5 is a completed view of a display unit of Embodiment 2. FIG. 5 is a rear view of the display unit of Embodiment 2. FIG. FIG. 7 is a diagram for explaining a method of replacing the LED substrate of the display unit of Embodiment 2. FIG. 18A is a front view and a rear view of a timepiece display unit of Embodiment 3. FIG. FIG. 14 is a view for explaining the display mechanism of the clock display unit of the third embodiment. FIG. 18 is a view for explaining display states when the clock display unit of the third embodiment is on and off.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
First, a display unit that can be replaced in segment units will be described.

  FIG. 1 is an assembly view of the display unit of Embodiment 1, FIG. 1 (a) is a perspective view seen from the front direction, and FIG. 1 (b) is a perspective view seen from the back direction.

  In FIG. 1A, a front panel 1 with seven holes (1a to 1g) corresponding to seven segments from the front direction to the back direction, and seven diffusion lenses 2 (2a to 2h) corresponding to the holes of the front panel 1 2g), the case 3 in which seven holes (3a to 3g) are opened, and seven LED substrates 4 (4a to 4g) corresponding to the seven holes in the case 3 are arranged in this order.

  The front panel 1 is made of a material such as metal or resin, and is painted in the same color as the casing of the timepiece display unit described later. The diffusion lens 2 is a lens that diffuses the light emitted from the LED in the front direction, and is made of an acrylic plate or the like. The diffusion lens 2 has a configuration of each segment unit in order to prevent the light from leaking from the diffusion lens 2 and blurring the displayed numbers.

  Corresponding seven segment-shaped LED substrates 4 (4a to 4g) are attached from the rear direction to the seven holes (3a to 3g) of the case 3 and fixed by unshown fixing screws 7 described later.

  In FIG. 1 (b), six bosses 5 are vertically erected in the back direction on the back of the front panel 1. The tip of the boss 5 is threaded. The six bosses 5 pass through six holes formed in the case 3 and are fixed by the fixing nut 6, and the display unit is assembled as one.

  2 is a completed view of the display unit of Embodiment 1, FIG. 2 (a) is a perspective view as viewed from the front, and FIG. 2 (b) is a perspective view as viewed from the back.

  In FIG. 2A, seven diffusion lenses 2 (2 a to 2 g) are fitted in the front panel 1, and the case 3 is attached to the front panel 1. In FIG. 2 (b), the case 3 is fixed by six bosses 5 and fixing nuts 6 and integrated with the front panel 1. And seven segment-shaped LED board 4 (4a-4g) is attached to seven holes (3a-3g) of case 3 from the back direction. The LED substrate 4 is fixed by a fixing screw 7 (not shown) described later, and the LED substrate 4 can be replaced by removing the fixing screw 7.

FIG. 3 is a rear view of the display unit of the first embodiment.
In the case 3 positioned at the left in FIG. 3, six bosses 5 erected in the back direction from the front panel 1 are fixed by six fixing nuts 6. Then, seven LED substrates 4 (4a to 4g) are fixed to the case 3 by four fixing screws 7, respectively.

  In the case 13 positioned on the right in FIG. 3, five bosses 5 erected in the back direction from the front panel 1 are fixed by five fixing nuts 6. The two LED substrates 14 a and 14 b are fixed to the case 13 by four fixing screws 7 respectively.

  FIG. 4 is a diagram for explaining a method of replacing the LED substrate of the display unit of Embodiment 1. FIG. 4 (a) is a diagram showing a cross-sectional image, and FIG. 4 (b) is an LED substrate of the display unit. FIG.

  In FIG. 4A, the diffusion lens 2 is fitted in the hole portion of the case 3. A boss 5 erected in the back direction from the front panel 1 penetrates the hole of the case 3, and the tip of the boss 5 is fixed by a fixing nut 6. Thereby, the front panel 1, the diffusion lens 2 and the case 3 are integrally fixed. The LED substrate 4 on which a large number of LEDs 40 are mounted is fixed to the case 3 from the back by a fixing screw 7.

  FIG. 4B shows a replacement image of the LED substrate 4. By removing the fixing screw 7 in the back direction, only the LED substrate 4 can be removed in the back direction. When the brightness of a large number of LEDs 40 mounted on the LED substrate 4 is degraded, the new LED substrate 4 can be replaced in segment units.

Second Embodiment
Next, a display unit in which the LED substrates can be replaced in digit units will be described.

  FIG. 5 is an assembly view of the display unit of the second embodiment, and the same reference numerals as in the assembly view (FIG. 1) of the display unit of the first embodiment denote the same elements. The display unit shown in FIG. 5 has a case 23 and one integrated LED substrate 24 in place of the case 3 and the seven LED substrates 4 in FIG. 1.

  Fig.5 (a) is the perspective view seen from the front direction, FIG.5 (b) is the perspective view seen from the back direction.

  In FIG. 5A, the front panel 1 has seven holes (1a to 1g) corresponding to seven segments from the front direction to the back direction, and seven diffusion lenses 2 (2a to 2h) corresponding to the holes of the front panel 1. 2g), the case 23 having the seven holes (23a to 23g) open, and the segment integrated LED board 24 having a large number of LED mounting areas (24a to 24g) at positions corresponding to the seven holes of the case 23 Arranged in order.

  The front panel 1 is made of a material such as metal or resin, and is painted in the same color as the casing of the timepiece display unit described later. The front panel 1 and the diffusion lens 2 in FIG. 5 are the same as the front panel 1 and the diffusion lens 2 in FIG.

  One integrated LED substrate 24 having a large number of LED mounting areas (24a to 24g) is disposed at positions corresponding to the seven holes (23a to 23g) of the case 23. The LED substrate 24 is fixed by six fixing nuts 6 from the rear direction.

  In FIG. 5 (b), six bosses 5 are vertically erected in the back direction on the back of the front panel 1. The tip of the boss 5 is threaded. The six bosses 5 pass through six holes formed in the case 23 and are fixed by the fixing nut 6 in a recess on the inside of the case 23. Furthermore, the tip portions of the six bosses 5 are fixed by the fixing nuts 6 through the six holes formed in the LED substrate 24.

  FIG. 6 is a completed view of the display unit of the second embodiment, and the elements common to the completed view (FIG. 2) of the display unit of the first embodiment are denoted by the same reference numerals. 6 (a) is a perspective view as viewed from the front, and FIG. 6 (b) is a perspective view as viewed from the back.

  In FIG. 6A, seven diffusion lenses 2 (2a to 2g) are fitted in the front panel 1, and a case 23 is attached to the front panel 1.

  In FIG. 6 (b), the case 23 is fixed by six bosses 5 and fixing nuts 6 and integrated with the front panel 1. And one integrated LED board 24 which has a plurality of LED mounting areas (24a to 24g) at positions corresponding to the seven holes (23a to 23g) of the case 23 is disposed.

  FIG. 7 is a back view of the display unit of the second embodiment, and the elements common to the back view (FIG. 3) of the display unit of the first embodiment are denoted by the same reference numerals.

  The case 23 positioned on the left in FIG. 7 is formed by six bosses, which are erected in the back direction from the front panel 1, in the case 23 and six holes in the integrated LED substrate 24. It penetrates a hole together and is fixed by the fixing nut 6, respectively.

  The case 33 located on the right in FIG. 7 has five holes in the case 33, and five holes in the case 33, and five holes in the integrated LED substrate 34. It penetrates a hole together and is fixed by the fixing nut 6. The LED substrate 34 has a plurality of LED mounting areas 34 a and 34 b in portions corresponding to the upper and lower two points of the dot.

  FIG. 8 is a view for explaining the method of replacing the LED substrate of the display unit of Embodiment 2, and the same reference numerals as in FIG. 4 explaining the method of replacing the LED substrate of the display unit of Embodiment 1 It is attached.

  FIG. 8 (a) is a view showing a cross-sectional image, and FIG. 8 (b) is a view showing an exchange image of the LED substrate of the display unit.

  In FIG. 8A, the diffusion lens 2 is fitted in the hole of the case 23. The boss 5 erected in the back direction from the front panel 1 is penetrated through the hole of the case 23 and is fixed by the fixing nut 6 in the recess inside the hole of the case 23. Thereby, the front panel 1, the diffusion lens 2, and the case 23 are integrated.

  Furthermore, the tip portions of the six bosses 5 are fixed by the fixing nuts 6 through the six holes formed in the LED substrate 24. As a result, the LED substrate 24 is fixed to the case 23, and the integrated LED substrate 24 completes a display unit that can be replaced in units of one digit.

  FIG. 8B shows a replacement image of the integrated LED board 24. The six bosses 5 erected in the back direction from the front panel 1 are fixed by the fixing nut 6 in the recess inside the hole of the case 23. When the fixing nut 6 fixing the tip of the boss 5 penetrating the six holes formed in the LED substrate 24 is removed, the integrated LED substrate 24 can be replaced. In the integrated LED substrate 24, for example, a plurality of LEDs 40 are mounted in a portion corresponding to seven segments.

  The boss 5 erected in the back direction from the front panel 1 penetrates the hole of the case 23 and is fixed by the fixing nut 6 at the recess inside the hole of the case 23, the front panel 1, the diffusion lens 2 and the case 23 Are integrally fixed. Therefore, only the integrated LED board 24 can be easily replaced by removing the outermost fixing nut 6 on the back side.

(Embodiment 3)
Next, a timepiece display unit according to a third embodiment of the present invention will be described.

  FIG. 9 is a front view and a rear view of the timepiece display unit of Embodiment 3, FIG. 9 (a) is a front view, and FIG. 9 (b) is a rear view.

  The front view of the timepiece display unit 100 is displayed on FIG. 9 (a). A first display unit 110 (10 digits at the time) displaying 7 segments from left to right, a second display unit 120 (7 digits at the time) displaying 7 segments, a third display unit 130 (dots A fourth display unit 140 (10 digits for 1 minute) displaying 7 segments and a fifth display unit 150 (1 digit for 1 minutes) displaying 7 segments are arranged. In the first display unit 110, seven segment-shaped LED substrates 4 for displaying ten digits of the hour are fixed to the case 3 by four fixing screws 7, respectively.

  The back view of the timepiece display unit 100 is displayed on FIG.9 (b). Seven bosses 15 are vertically erected in the back direction from the front panel 1 at the upper end and the lower end of the timepiece display unit 100, respectively. The top and bottom 14 bosses 15 are used when fixing the clock display unit 100 with the fixing nut 6 when, for example, the clock display unit 100 is incorporated into a large display panel used at an airport.

  The first display unit 110 (tenth digit at the time) positioned at the left end has six bosses 5 vertically erected from the front panel 1 in the back direction through the hole of the case 3 and the fixing nut 6 It is fixed. Similarly to the first display unit 110, the second display unit 120 (the 1st digit of the hour) next to the right of the first display unit 110 is, for example, six columns vertically erected from the front panel 1 in the back direction. The boss 5 is fixed by the fixing nut 6 through the hole of the case 3.

  In the third display unit 130 (dot display), five bosses 5 vertically erected from the front panel 1 in the back direction are fixed by fixing nuts 6 through the holes of the case 13.

  Similarly to the first display unit 110 and the second display unit 120, the fourth display unit 140 and the fifth display unit 150 have six bosses 5 vertically erected from the front panel 1 in the back direction. It is fixed by a fixing nut 6 through the hole of the case 3.

FIG. 10 is a view for explaining the display mechanism of the clock display unit according to the third embodiment.
In the side view of the timepiece display unit of FIG. 10A, the case 3 is fixed to the front panel 1 by fixing the boss 5 extending from the front panel 1 in the back direction with the fixing nut 6. An apertured sheet 8 is attached to the surfaces of the diffusion lens 2 and the front panel 1. The apertured sheet 8 has a function of transmitting light passing through the diffusion lens 2 fitted to the front panel 1 when the LED is lit. The perforated sheet 8 has the same color as the front panel 1.

  FIG. 10 (b) shows a diagram for explaining the principle of display when the LED of the clock display unit is lit.

  At the time of LED lighting, the light emitted from a large number of LEDs 40 mounted on the LED substrate 4 disposed on the back side of the case 3 is fronted through the diffusion lens 2 and the aperture sheet 8 fitted in the front panel 1 It is emitted in the direction. As a result, several characters and dots are displayed in a floating manner.

FIG. 10C is a view for explaining the principle of display when the LED of the clock display unit is turned off.
On the other hand, when the LED is turned off, no light is emitted in the front direction, and the aperture sheet 8 has the same color as the front panel 1, so the display of the clock display unit becomes a display state having a sense of unity with the front panel .

  FIG. 11 is a view for explaining display states when the clock display unit of the third embodiment is on and off.

  FIG. 11A is a view showing a watch display portion when the LED is turned off, and the diffusion lens 2 and the front panel 1 are covered with the aperture sheet 8. The perforated sheet 8 is a sheet color of the same color as the housing paint color (for example, PANTONE 279C), and the clock display portion when the LED is turned off is in a display state having the same color as the sheet color.

  FIG. 11 (b) is an enlarged view of a part of the seven segments when the LED is turned off, and in the segments 120c, 120d, and 120e, look at a large number of φ1.5 mm holes opened in the perforated sheet 8. Can.

  FIG. 11C is a diagram showing a clock display portion of seven segments when the LED is lit, and the time display of “12:34” is performed. FIG. 11D is an enlarged view of a part of the seven segments when the LED is lit, and is an enlarged view of only the lower part of the seven-segment display (number "2") displaying the digit of one. There is no light leakage from the segment 120c, and a slight diameter of 1.5 mm in diameter is visible in the perforated sheet 8. When the LED is lit, the light emitted from the LED is diffused by the diffusion lens 2 and spreads through the aperture sheet 8 so that the segments 120 d and 120 e are displayed so as to be raised.

(Effect of the embodiment)
According to the display unit of Embodiment 1 of the present invention, as shown in FIG. 3, seven segment-shaped LED boards 4 (4 a to 4 g) are provided on the back of case 3 with four fixing screws. It is fixed by 7. By removing the four fixing screws 7, as shown in FIG. 4, it is possible to individually replace the LED boards 4 in units of segments.

  According to the display unit of the second embodiment of the present invention, as shown in FIG. 7, the six holes formed in the case 23 and the six holes formed in the integrated LED substrate 24 are both penetrated. The integrated LED board 24 is fixed by the six fixing nuts 6. As shown in FIG. 8, since the front panel 1 and the case 23 are fixed by the fixing nut 6 at the recess inside the hole of the case 23, the outer six fixing nuts 6 are removed to Only the body type LED board 24 can be removed and replaced.

  According to the timepiece display unit 100 of the third embodiment of the present invention, as shown in FIG. 11, when the LED is turned off, the display is in a state of unity with the sheet color, and when the LED is lit, the segment floats. It becomes possible to display as it goes up.

(Modification)
Although not mentioned in the description of the embodiment of the present invention, a brightness adjusting volume may be provided on the LED substrate in order to adjust the brightness of each of the segments constituting the seven segments. For example, the LED substrate 4 in FIG. 3 has a portion (an adhesive portion) on which the LED for fixing the case 3 with four fixing screws 7 is not mounted. A brightness adjustment volume may be mounted on this margin portion, and the brightness adjustment of the LED may be adjusted by adjusting the brightness adjustment volume.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to embodiment mentioned above, A various structure or embodiment can be taken in the range which does not deviate from the summary of this invention.

DESCRIPTION OF SYMBOLS 1 front panel 1a-1g hole of front panel 2, 2a-2g diffusion lens 3, 13, 23, 33 case 3a-3g case hole 23a-23g case hole 4, 4a-4g, 14, 24 LED board 14a, 14b, 34 LED board 40 LED
5, 15 Boss 6 Fixing nut 7 Fixing screw 8 Opening sheet 24a-24g LED mounting area 34a, 34b LED mounting area 100 Clock display unit 110 First display unit 120 Second display unit 130 Third display unit 140 fourth display unit 150 fifth display unit

Claims (4)

A perforated case at the 7 segment position,
Seven segment shaped LED substrates mounted from the rear in each hole of the case;
A diffusion lens which is inserted from the front into each hole of the case and diffuses light emitted from a plurality of LEDs on the LED substrate in the front direction;
A front panel disposed in front of the diffusion lens and having an aperture at the location of the seven segments;
A display unit characterized in that each of the LED substrates is replaceable in units of segments.   Fixing of the LED substrate to the back surface of the case is performed by a plurality of fixing screws, and the LED substrates can be replaced by removing the plurality of fixing screws. The display unit according to 1. The front panel has a plurality of bosses erected vertically in the back direction,
The plurality of bosses pass through holes provided at positions of the plurality of bosses of the case, and the front panel and the case are formed by fixing the tip portions of the plurality of bosses with a fixing nut. The display unit according to claim 1, wherein the display unit is configured to be integrated. When the first display unit of 7 segments, displaying the number of 10 digits when
7 segment second display unit, which displays the number of 1 digit when
A third display unit for displaying dots,
A fourth display unit of 7 segments, displaying numbers of 10 digits of minutes
7th segment 5th display unit which displays the number of a digit of 1/2,
A diffusion lens disposed in front of the light emitting surface of the first to fifth display units and diffusing light output from the first to fifth display units;
A front panel disposed in front of the diffusion lens and having holes at positions of the seven segments of the first to fifth display units;
The pasted on the surface of the diffusion lens, a and the front panel and the same color apertured sheet has a plurality of pores, at the time LED off exhibits a display state having unity with the front panel, An apertured sheet that presents a display state in which a segment corresponding to the lit LED is floated by passing light through the pore when the LED is lit;
The first to fifth display unit, the clock display unit, which comprises incorporating a replaceable LED substrate segment units of the plurality of LED is paved.