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Backlight structure

A technology of backlight structure and light guide plate, which is applied in optics, nonlinear optics, instruments, etc., and can solve the problems of decreased luminance in the lower right corner, decreased luminance in the lower left corner, and increased luminance, etc.

Active Publication Date: 2009-04-01
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the way of increasing local luminance by polishing is one-way polishing, that is, the tool must be polished from left to right, so that the direction of light transmission in the light guide plate 10 is to the right, so that the luminance of the lower right corner increases. will make the brightness in the lower left corner even lower
Or polish from right to left; make the direction of light transmission in the light guide plate 10 to the left, so that the luminance of the lower left corner will increase, and the luminance of the lower right corner will be reduced relatively.

Method used

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Embodiment Construction

[0049] In order to make your examiner have a further understanding and understanding of the structural features and the achieved effects of the present invention, I would like to provide a preferred embodiment and a detailed description, as follows:

[0050] Please refer to FIG. 3A, which is a structural schematic diagram of a backlight structure in a preferred embodiment of the present invention. As shown in the figure, the backlight structure of the present invention includes a light guide plate 60 and a light source group 70, and one side of the light guide plate 60 has an input The light surface 62 ; the light source group 70 has an effective light emitting area 625 (see FIG. 4 ), and there is a distance D between the centerline C1 of the effective light emitting area 625 and the centerline C2 of the light incident surface 62 . In this way, by arranging the light source groups 70 asymmetrically, the range of light propagation in the lower left corner and the lower right cor...

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Abstract

A back light structure consists of a light guide plate with a light incoming surface, alight source set .It features that a polished surface is used as light incoming surface, an effective luminous region is formed by light source set, a distance is set between central line of effective luminous region and central line of light incoming surface to make brightness of bottom-left angel and brightness of bottom-right angle to be the same.

Description

technical field [0001] The invention relates to a backlight structure. Background technique [0002] Common backlight structures are used in daily life, such as digital cameras, digital players, mobile phones, TVs, computers, etc. Taking computers as an example, most of today's computer displays are liquid crystal displays, and there are almost no traces of traditional cathode ray tube displays. Due to the trends and trends of the times, thin, light, small and high-performance have become one of the invention concepts of technological products; and notebook computers are products invented based on concepts. For the display of notebook computers, most of them use backlight structure as the light source; in order to conform to the invention concept of thinness, lightness and high performance, therefore, the V-cut light incident side (V-cut) backlight structure has gradually become the mainstream, and its structure can be used more Few optical flakes concentrate the light ene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1333G02F1/13357G02F1/1335
Inventor 潘治良袁师武王怡然
Owner AU OPTRONICS CORP