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Edge-light backlight and liquid crystal display provided with same

A backlight and side-light technology, which is applied in the field of flat panel display, can solve the problems of increasing the manufacturing cost of the backlight, and achieve the effect of simplifying the manufacturing process and uniformly emitting light

Active Publication Date: 2013-10-02
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the backlight in the prior art, the light guide plate occupies a considerable proportion in terms of weight and volume, and in view of its material requirements, it will also increase the manufacturing cost of the backlight accordingly

Method used

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  • Edge-light backlight and liquid crystal display provided with same
  • Edge-light backlight and liquid crystal display provided with same
  • Edge-light backlight and liquid crystal display provided with same

Examples

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Embodiment Construction

[0027] The present invention will be described in detail below with reference to the drawings.

[0028] Figure 2-4 The edge-lit backlight 200 according to the present invention is shown.

[0029] The backlight source 200 includes a back plate 210 (only in Figure 4 Shown in).

[0030] The back plate 210 is provided with a reflective sheet 205 for reflecting light. In the drawing, the reflection sheet 205 is located at the lower part. The reflective sheet 205 is provided with reflective particles 208, and the reflective sheet 205 reflects light with the assistance of the reflective particles 208.

[0031] The reflective particle 208 in the present invention is a miniature optical reflective material, and its function is to change the refraction angle of light by selecting different materials to meet design requirements. The reflective sheet 205 itself can reflect light, and the role of the reflective particles 208 is to perform secondary processing on the light to meet the design r...

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PUM

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Abstract

The invention provides an edge-light backlight, and belongs to the technical field of panel display. The edge-light backlight comprises a back board provided with a reflector plate, an optical slice component and a light emitting component, wherein the optical slice component and the back board are arranged at an interval, an optical cavity is formed between the back board and the optical slice component, and the light emitting component is arranged on one side of the back board. A convex lens is arranged between the reflector plate and the optical slice component. Light coming from the light emitting component is led into the optical cavity through the convex lens and then is emitted through the optical slice component. The distance between the convex lens and the light emitting component is greater than the optically-coupling distance. The convex lens can keep the distance between the optical slice component and the reflector plate. Compared with a backlight in the prior art, the edge-light backlight is lighter in weight, thinner in thickness and greatly simplified in manufacturing process.

Description

Technical field [0001] The invention relates to a backlight, in particular to an edge-light type backlight, belonging to the technical field of flat panel displays. [0002] The present invention also relates to a liquid crystal display having the above-mentioned backlight source. Background technique [0003] Thin-film transistor liquid crystal display (TFT-LCD) is one of the main products in current flat panel display technology, and it has become an important display platform in modern IT and video products. [0004] Since the liquid crystal itself does not emit light, it is necessary to configure a backlight (BL) for display. At present, the mainstream BL architecture is an edge-type backlight, which uses a light guide plate (LGP) to transmit light to the range of the display area, and then is processed by optical films such as prism sheets and diffusers to form a final Homogenized light source. [0005] Reference figure 1 , figure 1 A common backlight source 100 in the prior ar...

Claims

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Application Information

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IPC IPC(8): G02F1/13357
CPCG02F1/133615G02F2202/36G02F2203/02
Inventor 黄笑宇
Owner SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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