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Backlight module and display

A backlight module and display technology, applied to static indicators, instruments, etc., can solve problems such as increased power consumption of the backlight module, increased weight and cost of the backlight module, and reduced luminance of the backlight module, achieving improved uniformity and high show the effect of taste

Active Publication Date: 2011-07-06
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method will increase the weight and cost of the backlight module, and will reduce the overall luminance of the backlight module. Instead, it is necessary to increase the number of light sources or increase the driving current to make up for the luminance lost due to the addition of an optical film. First, it will lead to an increase in the power consumption of the backlight module

Method used

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  • Backlight module and display
  • Backlight module and display
  • Backlight module and display

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Experimental program
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Embodiment Construction

[0043] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail together with the accompanying drawings.

[0044] The present invention proposes a backlight module, wherein the light guide plate has a plurality of regions, and each region of the light guide plate corresponds to a light incident surface, and an appropriate light source division method and a control circuit are used on each light incident surface of the light guide plate to make the light guide The center of each area of ​​the light plate is lit or darkened together with the edge of the adjacent area to reduce the sharp contrast caused by the difference in luminance at the splicing of multiple areas of the light guide plate. In this way, the backlight can be greatly improved. The overall light output uniformity of the module prevents the sharp splicing boundary of the light guide plate at the splicing of m...

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Abstract

The invention provides a backlight module and a display. The backlight module comprises a light guide plate, a plurality of light source modules and a plurality of control circuits, wherein the light guide plate is provided with a plurality of areas, and each area of the light guide plate is correspondingly provided with an incident surface; each light source module is correspondingly arranged onan incident surface of the light guide plate, and comprises at least one middle light source and at least one edge light source; the middle light source is arranged in a middle area of each light source module, and the edge light source is arranged on the edge of each light source module; each control circuit is electrically connected with a middle light source of a light source module; and the edge light source of each light source module is electrically connected to a control circuit of an adjacent light source module. Therefore, the backlight module has even brightness on a light guide plate splicing position. The display provided by the invention is provided with the backlight module.

Description

technical field [0001] The present invention relates to a light source device and a display device, and in particular to a backlight module and a display. Background technique [0002] In recent years, due to the characteristics of lightness, thinness, smallness and low power consumption, liquid crystal displays have been widely used in electronic imaging products such as notebook computers, digital cameras, and televisions, and have gradually replaced traditional cathode ray tubes (CRT, Cathode ray tube) display. [0003] Generally speaking, a liquid crystal display is composed of a liquid crystal panel and a backlight module. The liquid crystal panel mainly uses the rotation of the liquid crystal molecules and the polarizer to change the amount of light passing through different areas, causing differences in brightness and darkness in different areas, so as to achieve the purpose of image display. Since the liquid crystal itself does not have light-emitting properties, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34G09G3/36
Inventor 廖述珀许博淳张志伟
Owner AU OPTRONICS CORP