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Display device and liquid crystal display device

A liquid crystal display device and a display device technology, which are applied in identification devices, lighting devices, lighting and heating equipment, etc., and can solve problems such as image brightness reduction and uneven brightness

Inactive Publication Date: 2015-06-03
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because if their positional relationship is inappropriate, the brightness of the image displayed on the liquid crystal panel will decrease, brightness unevenness, etc.

Method used

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  • Display device and liquid crystal display device
  • Display device and liquid crystal display device
  • Display device and liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0164] Hereinafter, the display device according to the embodiment of the present invention will be described by taking a television receiver as an example. figure 1 It is a perspective view of the appearance of a television receiver. figure 2 It is an exploded perspective view of the main parts of the TV receiver. The television receiver includes a backlight base 1 (holding body), an LED (Light Emitting Diode) substrate 2, a reflective sheet 3, a light guide plate 4, an optical sheet 5, an optical member bracket 6 (positioning member), and liquid crystal The panel 7 (display panel), the panel cover 8, the outer frame 9, the tuner substrate 10, and the power supply substrate 11.

[0165] In the following description, the side of the television receiver where the liquid crystal panel 7 is provided is referred to as the front side or simply the front. The side opposite to the front side is called the back side or simply the back. The left side facing the liquid crystal panel 7 is...

Embodiment approach 2

[0197] Hereinafter, the present invention will be specifically described based on the drawings showing embodiments of the present invention. Picture 10 It is an exploded perspective view showing the structure of the liquid crystal display device of this embodiment. Picture 11 It is a partially enlarged cross-sectional view showing the structure of the liquid crystal display device of this embodiment. In the figure, 201 is a liquid crystal panel. The liquid crystal panel 201 has a substantially rectangular plate shape, and is a display that performs image display by controlling the transmittance of light irradiated from the back for each pixel. A plurality of optical sheets 202, a light guide plate 203, and a reflection plate 204 are stacked on the back side of the liquid crystal panel 201. The plurality of optical sheets 202 have different optical characteristics, and are optical members that perform light diffusion and the like. Each optical sheet 202 has a substantially re...

Deformed example 1

[0217] The contact surface 272a of the light shielding member 207 has a comb shape, but it may have another shape as shown in the following modification examples. Figure 14 It is a schematic diagram which shows the modification of the contact surface 272a of the light shielding member 207. Figure 14 The abutting surface 272a of the light shielding member 207 shown in A adopts a grid shape. The plurality of grooves 272b are substantially square, respectively, and are arranged in the longitudinal direction and the lateral direction. In addition, Figure 14 The light-shielding member 207 shown in B is formed by arranging substantially circular grooves 272b in a row, and the contact surface 272a is a shape formed by removing a plurality of substantially circular shapes from a substantially rectangular shape. In addition, the contact surface 272a of the light shielding member 207 is not limited to the shape shown in the figure, and various shapes can be further adopted.

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Abstract

Provided is a display device in which an optical member is accurately positioned and is fixed to a back-light chassis without the addition of molding processing or the like and without screwing and fastening. The display device has the following: a display panel for displaying images on a front surface thereof; optical sheets (5) that are disposed on the rear surface side of the display panel, and that diffuse light and cause the light to be incident on the display panel; a support body (1) that is box-shaped and supports the rear and side surfaces of the display panel; and a positioning member (6) that performs positioning of the optical sheets (5) in the surface direction thereof, and that has a side plate part interposed between a side surface of the optical sheets (5) and the side surface of the support body (1), and a surface plate part that is parallel to the front surface of the display panel. The display device is characterized in that on the edges of the optical sheets (5) are disposed protrusions (51a) that protrude in the surface direction and are for positioning, and disposed on the surface plate part is a notch (62b) into which the protrusions (51a) are inserted loosely.

Description

Technical field [0001] The present invention relates to a display device. The display device includes a display panel, an optical sheet that diffuses light and is incident on the display panel, and a box-shaped holder that holds the back and sides of the display panel. Background technique [0002] As a kind of display device, there is a liquid crystal display device. Since the liquid crystal panel used in the liquid crystal display device does not emit light, in order to display an image, a backlight is required. As a method of making light incident on the liquid crystal panel, there is an edge emission method. In the edge-emitting method, a reflective sheet, light guide plate, optical sheet, and liquid crystal panel are laminated on a box-shaped backlight base, so that the light from the light source such as LED enters from the side of the light guide plate and passes through the reflective sheet and guide The light plate irradiates light to the liquid crystal panel. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/00F21S2/00G02F1/1333G02F1/13357F21Y101/02
CPCF21S2/00G02F1/133308G02F1/133608G09F9/00G02B6/0068G02B6/0085G02B6/0088G02F1/133615G02F1/133314G02F1/133317G02F1/133325G02B6/0051G02B6/009G02F1/1336
Inventor 木口大作
Owner SHARP KK
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