Plane display device and light gathering type diffusing plate therefor

A flat-panel display and diffusion plate technology, which is applied in the fields of instruments, optics, nonlinear optics, etc., can solve the problems of increasing assembly man-hours and increasing costs, and achieve the effect of reducing assembly man-hours and maintaining optical performance and image quality

Active Publication Date: 2007-07-04
HANNSTAR DISPLAY CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] All in all, several layers of optical films are currently used in liquid crystal displays, thus increasing costs and increasing assembly man-hours

Method used

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  • Plane display device and light gathering type diffusing plate therefor
  • Plane display device and light gathering type diffusing plate therefor
  • Plane display device and light gathering type diffusing plate therefor

Examples

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Embodiment Construction

[0021] FIG. 2 is a schematic cross-sectional view of a flat panel display according to a preferred embodiment of the present invention. Referring to FIG. 2, the flat panel display of this embodiment includes a backlight module 200, a light-concentrating diffuser plate (Brightness Enhancement Diffuser Plate, BEDP) 220 disposed on the backlight module 200, and a liquid crystal display panel 210, wherein the backlight module 200 can be directly type backlight module. The concentrating diffusion plate 220 is located between the backlight module 200 and the liquid crystal display panel 210, and includes a first diffusion layer 220a and a second diffusion layer 220b, wherein the first diffusion layer 220a is arranged adjacent to the liquid crystal display panel 210, and the second diffusion layer The layer 220b is disposed adjacent to the first diffusion layer 220a, and the first diffusion layer 220a and the second diffusion layer 220b have different refractive index (RefractiveInde...

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Abstract

A plain display is disclosed that consists of backlight module, liquid crystal display panel, and spot-light type diffusing board. The liquid crystal display panel is mounted above the backlight module; the spot-light type diffusing board is located between the backlight module and liquid crystal display panel, and the spot-light type diffusing board includes the first diffusing layer and the second diffusing layer, the first diffusing layer closes to the configuration of liquid crystal display panel, and the second diffusing layer closes to the configuration of the first diffusing layer, and the first and second diffusing layer have different refractive index, permeability, and fog value, and that can make the display reach the optimal optical performance.

Description

【Technical field】 [0001] The present invention relates to a flat panel display, and in particular to a flat panel display with a Brightness Enhancement Diffuser Plate (BEDP). 【Background technique】 [0002] With the development of high technology, video products, especially digital video or image devices have become common products in daily life. In these digitized video or imaging devices, a display is an important component to display relevant information. Users can read information from the display, or further control the operation of the device. [0003] At present, the display that attracts the most attention is a flat panel display developed in conjunction with optoelectronic technology and semiconductor manufacturing technology, such as a liquid crystal display (Liquid Crystal Display, LCD). Due to the advantages of low-voltage operation, no radiation scattering, light weight, and small size, liquid crystal displays have become the main subject of display research i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02B5/02G02F1/1335
Inventor 黄季仁张之礼
Owner HANNSTAR DISPLAY CORPORATION
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