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Backlight device and display device

A technology of backlight and light-emitting elements, which is applied in the field of backlight devices and display devices, can solve problems such as confirming the orientation of circuit substrates, and achieve the effect of easy identification

Inactive Publication Date: 2015-07-22
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the shape of the first connection part is similar to that of the second connection part, it is difficult to confirm the orientation of the circuit board based on the difference in shape between the first connection part and the second connection part.

Method used

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  • Backlight device and display device
  • Backlight device and display device
  • Backlight device and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1－1

[0363] Figure 29 It is a perspective view showing the structure of the light source device according to the present invention, Figure 30 is a plan view showing the structure of the light source device, Figure 31 It is a plan view showing the structure obtained by omitting the reflection sheet of the light source device, Figure 32 It is an enlarged cross-sectional view showing a part of the structure of the light source device.

[0364] The illustrated light source device (B) is installed on the rear side of the display unit in the thin display device provided with the display unit (A). (B) includes: a plurality of light emitting diodes 1 (B1), which are arranged side by side in a grid shape as light sources; a plurality of light emitting diode substrates 2 (B3), and the plurality of light emitting diode substrates 2 (B3) arranged side by side in multiple rows, the light emitting diode 1 is installed on one surface 2a; a plurality of connectors 3 (B4), the plurality of c...

Embodiment approach 1－2

[0385] Figure 38 It is a developed front view showing another configuration of the main part of the reflection sheet included in the light source device according to the present invention. This light source device adopts the following structure: that is, a substantially V-shaped cutout portion 57 is provided at the corner 52a of the frame portion 52 instead of providing three second strips at the corner of the frame portion 52 of the reflection sheet 5 (B5). The folding line 53 bends the four frame parts 52 connected to the four sides of the flat part 51 obliquely with respect to the flat part 51 at the first folding line 5b, and the two edge parts 57a, 57a of the cutout part 57 Together, and utilize double-sided adhesive tape 55 to keep this combined state.

[0386] The reflection sheet 5 formed of a rectangular synthetic resin sheet material has a flat portion 51 smaller than the plate portion 61 of the supporting case 6, and four sides of the flat portion 51 connected at ...

Embodiment approach 1－3

[0389] Figure 39 It is a developed front view showing another structure of the main part of the reflection sheet included in the light source device according to the present invention, Figure 40 It is an enlarged front view showing other structures of the main part of the reflective sheet. This light source device adopts the following structure: that is, three second folding lines 53 extending from the corners 51a of the flat portion 51 of the reflective sheet 5 to the periphery of the frame body portion 52 and one cutout 58 are provided instead of the corners 51a of the flat portion 51 of the reflective sheet 5. The corner 52a of the frame part 52 is provided with a cutout 57, the corner 52a of the frame part 52 is formed by the second folding line 53, and the end parts of the adjacent frame parts 52 are combined with each other by a cutout 58. The double-sided tape maintains the closed state and the corners 52a.

[0390] The cutouts 58 are arranged to extend from the cor...

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PUM

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Abstract

Concave marks indicative of an orientation of a circuit board are formed on the circuit board, convex indices to be engaged with the marks are formed in a position in which the circuit is to be attached. An operator confirms the orientation of the circuit board easily and accurately by visually recognizing the marks and touching the marks with a finger. Moreover, the operator positions the circuit board by engaging the marks with the indices.

Description

[0001] This application is an invention titled "light source device, lighting device, backlight device, liquid crystal display device and display device", the international application date is April 16, 2010, and the application number is 201080023184.3 (the international application number is PCT / JP2010 / 056811 ) of a divisional application for a patent application for invention. technical field [0002] The present invention relates to a light source device provided with a light emitting element, a lighting device, a backlight device, and a display device for displaying video. Background technique [0003] A so-called thin liquid crystal display device such as a liquid crystal television includes a substantially rectangular parallelepiped display unit having a display surface on which an image is displayed on the front side, and a light source device arranged on the back side of the display unit to irradiate light to the display unit. Optical sheets such as a diffusion plat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V7/00F21V7/10G02F1/13357F21Y101/02
CPCG02F1/133603G02B5/0236G02F1/133615G02F1/133608G02F1/1336G02F1/133605G02F2201/46
Inventor 竹内秀仁藤田稔之菅原达夫川村优贵谷畑守高桥洋伊藤启太岁行健藏伊东贤一郎中道一喜佐佐木智雄守部研太
Owner SHARP KK
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