JPH0423996B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a light-shielding hood device for a liquid crystal television receiver.

BACKGROUND OF THE INVENTION In recent years, liquid crystal television receivers have attracted attention as pocket televisions that emphasize portability because they are small and lightweight.

Conventional LCD television receivers have a liquid crystal panel attached to the front of the receiver so that it can rotate.For example, when used outdoors, the panel surface of the LCD panel is equal to the Use the diffuser plate for back lighting as a reflector plate,
It was designed to take in outside light from the back of the liquid crystal panel section and backlight the television screen in the liquid crystal panel section. On the other hand, when used outdoors, ambient light is reflected on the TV screen in the LCD panel section, making the TV screen itself difficult to see. It is known to mount a light-shielding hood device in which a hood plate is fixedly provided on at least three upper sides in a substantially U-shape.

Problems to be Solved by the Invention However, in the conventional light-shielding hood device, the hood plate is fixedly provided on the front side in a substantially U-shape, and the back side is only open.
When backlighting the LCD panel section of the LCD television receiver body with a light-shielding hood device attached to the LCD panel section of the LCD television receiver body, it is necessary to backlight the LCD panel section of the LCD television receiver body. The diffuser plate provided for the back lighting is used as a reflector, and the external light reflected by the reflector is simply irradiated from the back of the LCD panel, which causes the problem of insufficient light and makes it difficult to see the TV screen. Was.

SUMMARY OF THE INVENTION The object of the present invention is to eliminate such conventional drawbacks, and to provide a light-shielding hood device for a liquid crystal television receiver that can provide back illumination without insufficient light even when the hood is in use. It is.

Means for Solving the Problems The light-shielding hood device for a liquid crystal television receiver according to the present invention includes a case body that can be detachably attached to a liquid crystal panel section that is rotatably attached to the body of the liquid crystal television receiver, and a case body that A hood protrudes from the front side of the case body so as to surround the left and right sides and the top three sides of the front opening, and a hood rotatably supported by the open back side of the case body, and the liquid crystal panel section on the inner surface. The device is characterized by having a rotating plate provided with a reflecting mirror larger than the panel surface.

Effect The present invention has the above-described configuration, and when the case body constituting the light-shielding hood device is attached to the liquid crystal panel part raised from the liquid crystal television receiver body, the case body is provided on the back side of the case body. By tilting the rotating plate toward the LCD television receiver body, the back side of the case body is opened.
From this open back surface, external light reflected by the reflecting mirror provided on the inner surface of the rotating plate can be guided to the back surface of the liquid crystal panel section.
Since the reflecting mirror is larger than the diffuser plate for back lighting provided on the opposite surface of the liquid crystal panel section of the main body of the liquid crystal television receiver, it is possible to illuminate the panel surface of the liquid crystal panel section with external light without insufficient light quantity. This means that it can be backlit.

Embodiments Hereinafter, embodiments of the light-shielding hood device for a liquid crystal television receiver according to the present invention will be described with reference to the drawings.

FIGS. 1 to 4 show an embodiment of the present invention, and in FIGS. 1 to 4, 1 is a case body made of synthetic resin with an open back and constituting a light-shielding hood device; It has an opening 1a on the front surface and an opening 1b on the bottom surface. Reference numeral 2 designates a first hood plate having a substantially triangular shape rotatably supported by a hinge metal fitting 3 provided on the right side of the opening 1a of the case body 1, and the first hood plate 2 is rotatably supported by a hinge metal fitting 3 provided on the right side of the opening 1a of the case body 1. The other end of a coil spring (not shown) provided on the shaft 4 for supporting the first hood plate 2 is
By fixing it to the inner surface of the hood plate 2, a spring biasing force is applied in the direction of always closing the hood plate.
Reference numeral 5 designates a second hood plate having a substantially triangular shape rotatably supported by a hinge metal fitting 6 provided on the left side of the opening 1a of the case body 1, and the second hood plate 5 has a substantially triangular shape such that one end is in contact with the hinge metal fitting 6. A coil spring (not shown) provided on the shaft 7 for supporting the hood plate 5 of No. 2
By fixing the other end to the inner surface of the second hood plate 5, a spring biasing force is applied in the direction of normally closing the hood plate. 8 is the opening 1 of the case body 1
a substantially trapezoidal third hood plate rotatably supported by a hinge fitting 9 provided on the upper side of a, and a shaft for supporting the hood plate 8 such that one end abuts on the hinge fitting 9; By bringing the other end of a coil spring (not shown) provided at 10 into contact with the inner surface of the hood plate 8, a spring biasing force is applied in the direction of always opening the hood plate 8.

The biasing force of the coil spring that biases the first and second hood plates 2 and 5 in the direction of always closing the third hood plate is the same as that of the third hood plate.
The biasing force of the coil spring is set to be larger than the biasing force of the coil spring that always biases the hood plate 8 in the direction of opening. The third hood plate 8 is arranged so as to be located on the inner surface side of the first and second hood plates 2 and 5, and the first and second hood plates 2 and 5 are provided at both ends thereof.
Sliding members 11a and 11b are provided in contact with the inner surface of the third hood plate 8 to smooth the movement of the third hood plate 8 itself. Further, the first and second hood plates 2,
The upper end of the hood 5 has a fold that fits into the gap A between the axis of the third hood plate 8 and the case body 1 when the hood is closed, and is engaged with both ends of the third hood 8 when the hood is opened. Curved pieces 2a and 5a are provided.

Engagement pieces 12a and 12b (the engagement piece 12b on the right side wall is not shown) are protruded from the center portions of the right side wall and left side wall that make up the case body 1, and the case body 1 also makes up the case body 1. A metal fitting 13 having an engaging piece 13a is fixed to the upper side wall. Reference numeral 14 denotes a rotating plate disposed on the open back side of the case body 1, and projecting shafts 16a, 16b protruding from the outer surfaces of the left and right support pieces 15a, 15b are attached to the left and right side walls of the case body 1. It is rotatably supported by loosely fitting into the provided through holes 17a and 17b, respectively. Note that the left support piece 1 of the rotating plate 14
5a is configured to be elastically deformable by making a notch 14a in the rotary plate 14 itself,
When the protruding shafts 16a, 16b are loosely fitted into the through holes 17a, 17b provided in the left and right side walls of the case body 1, the rotary plate 14 is difficult to come off from the case body 1. In addition, the rotating plate 1
Stopper pieces 18a, 18b are provided on the outer surfaces of the left and right support pieces 15a, 15b of 4 to abut against the slopes of the left and right side walls of the case body 1 to restrict rotation of the rotation plate 14 toward the case body 1. (Right support piece 15b
stopper piece 18b (not shown) and protrusions 19a, 19b (not shown in right support piece 15b) that enter into recesses provided on the inner surfaces of the left and right side walls of the case body 1 and hold the rotating plate 14 in a closed state. Protrusion 19b
(not shown). Further, a reflecting mirror 20 is provided on the entire inner surface of the rotating plate 14. 5 and 6 show the state in which the above-mentioned light-shielding hood device is attached to a liquid crystal television receiver. It is becoming more and more common.

In such a configuration, by inserting the liquid crystal panel section 22 constituting the liquid crystal television receiver through the bottom opening 1b of the case body 1 constituting the light-shielding hood device with the liquid crystal panel section 22 constituting the liquid crystal television receiver opened, the upper back surface of the liquid crystal panel section 22 can be inserted. The engaging pieces 13a of the metal fitting 13 are engaged with the recesses provided in the case body 1, and the engaging pieces 12a and 12b of the case body 1 are engaged with the central portions of both back sides of the liquid crystal panel section 22, and the light shielding hood device is attached to the liquid crystal panel section 22 of the liquid crystal television receiver. In this installed state, the first and second hood plates 2 and 5 are moved from the third hood plate 8 by a roller that applies an external force in the direction of the spring bias to the third hood plate 8 constituting the light-shielding hood device. is opened against the spring force that urges the first and second hood plates 2, 5 in the direction of closing while contacting both ends of the third hood plate 8, and both ends of the third hood plate 8 are opened against the first and second hood plates 8. , are engaged with bent pieces 2a, 5a provided at the upper ends of the second hood plates 2, 5. In this way, in the process of opening the first, second, and third hood plates 2, 5, and 8, the sliding members 11a and 11b come into contact with the inner surfaces of the first and second hood plates 2, 5, so that the operation It does not require a large external force, and in the open state, the first and second hood plates 2,
Although the spring force in the direction of closing the third hood plate 8 is larger than the spring force in the direction of opening the third hood plate 8, the first and second Since the bent pieces 2a and 5a of the hood plates 2 and 5 engage and oppose the spring force in the direction of closing the first and second hood plates 2 and 5, the first, second, and The open state of the hood plates 2, 5, and 8 of No. 3 is maintained.

On the other hand, the first, second and third hood plates 2,
5, 8 in the open state, by applying an external force to the third hood plate 8 against its spring biasing force, the first and second hood plates 2, 5 are forced to the inner surface by the spring biasing force. Both ends of the third hood plate 8 are closed while being in contact with each other. In this way, in the process of closing the first, second and third hood plates 2, 5 and 8, the sliding members 11a and 11b come into contact with the inner surfaces of the first and second hood plates 2 and 5, so that It does not require a large external force for operation, and in the closed state, the spring force in the direction of closing the first and second hood plates 2 and 5 opens the third hood plate 8. Since the spring force is large compared to the spring force in the direction, the closed state of the first, second, and third hood plates 2, 5, and 8 is maintained.

Further, the first, second and third hood plates 2,
When the rotating plate 14 provided on the back of the case body 1 constituting the light shielding hood device is opened in the open state of 5 and 8, the reflecting mirror 20 provided on the inner surface of the rotating plate 14 is placed on the back of the liquid crystal panel section 22. The external light reflected by the liquid crystal panel section 22 can be guided, and the television screen of the liquid crystal panel section 22 can be brightly illuminated in a light-blocked state to prevent disturbance light, making it easy to view the television screen.

In the above embodiment, the first, second, and third hood plates 2, 5, and 8 were provided on the open front surface of the case body 1 constituting the light-shielding hood device, but the hood could be opened and closed. Needless to say, it is not necessary to have a casing, but it may be fixedly provided at the front opening of the case body 1.

Effects of the Invention As described above, according to the present invention, the hood is provided at the front opening of the case body which can be attached and detached to the liquid crystal panel part rotatably attached to the body of the liquid crystal television receiver, and the hood is rotatable at the open rear face. Equipped with a freely movable rotating plate,
A reflecting mirror having a larger area than the diffuser plate for back lighting provided on the surface facing the liquid crystal panel of the liquid crystal television receiver main body is disposed on the inner surface of this rotating plate, so that the rotating plate can be opened. When the rear surface of the case body is opened, external light reflected by the reflector disposed on the inner surface of the rotating plate can be guided from the rear of the panel surface of the liquid crystal panel section, so that the liquid crystal panel can be illuminated without insufficient light. This has the advantage that the panel surface of the panel can be back-illuminated with external light.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of a light-shielding hood device for a liquid crystal television receiver according to the present invention, FIG. 2 is a side sectional view of the device, and FIG. 3 is a top view of the device.
FIG. 4 is a bottom view of the device, and FIGS. 5 and 6 are sectional views of essential parts showing how the device is mounted on a liquid crystal television receiver. 1...Case body, 1a, 1b...Opening, 2,
5, 8...Hood plate, 14...Rotating plate, 20...
Reflector, 21... Main body of a liquid crystal television receiver, 22... Liquid crystal panel.

Claims (1)

[Claims] 1. A case body that can be attached and detached from the liquid crystal panel part that is rotatably attached to the body of the liquid crystal television receiver,
A hood protrudes from the front side of the case body so as to surround the left and right sides and the top side of the front opening of the case body, and a hood is rotatably supported on the open back side of the case body, and a hood is attached to the inner surface of the case body. A light-shielding hood device for a liquid crystal television receiver, comprising: a rotating plate provided with a reflecting mirror larger than the panel surface of the liquid crystal panel section.