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Backlight module and light collecting element thereof

A technology for backlight modules and light-collecting components, applied in optics, nonlinear optics, components of lighting devices, etc., can solve the problems of light energy design waste and cost increase

Inactive 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

Therefore, the waste of light energy design in the application also leads to an increase in cost

Method used

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  • Backlight module and light collecting element thereof
  • Backlight module and light collecting element thereof
  • Backlight module and light collecting element thereof

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Embodiment Construction

[0031] The invention discloses a backlight module and a light-collecting element thereof, which can form multi-peak light energy distribution to effectively utilize light energy at multiple viewing angles, thereby increasing the luminance of images viewed at each viewing angle at a lower cost. The distribution of light energy in multiple viewing angles is not limited to two viewing angles, and the position is not limited to the left and right sides of the display device. The position, intensity and distribution of light energy distribution can be adjusted according to the actual viewing angle and position. The present invention can be applied to a dual-image display device or a single image display device, and can be adjusted according to the actual requirements of the image display device. In order to make the description of the present invention more detailed and complete, the above-mentioned and other technical aspects, features and advantages of the present invention will b...

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Abstract

The invention provides a backlight module and a light-collecting element thereof, wherein, the light-collecting element comprises a substrate and a microstructure, wherein, the microstructure is arranged on the substrate. The microstructure is provided with a plurality of prism parts and a plurality of flat parts, which leads the prism parts and the flat parts to be parallelly configured into strips on a projection plane in parallel with the substrate. As the backlight module and the light-collecting element can form peaky light energy distribution, the light energy can be utilized at a plurality of viewing angles, furthermore, the luminance of image pictures at each viewing angle can be promoted at low cost. The light energy is distributed at a plurality of angles without limiting at twoangles, and the positions are not limited at the left and right sides of a display device, therefore, the position, strength and distribution of the light energy can be adjusted according to the actual viewing angle and position.

Description

technical field [0001] The invention relates to a backlight module and its light-collecting element, in particular, it can effectively distribute light energy to the backlight module and its light-collecting element. Background technique [0002] In the traditional single image display device, the user sees the same image regardless of the angle of view, but the dual view display technology (Dual View Technology) can provide two different images on one panel screen. For example, when the dual-view display is applied in the car, the driver on the left can watch the navigation instruction content, while the passenger on the right can watch the entertainment program. [0003] However, the general dual-view display device follows the design of the backlight module of the known single image display device, so the light energy distribution of the backlight module is in the shape of a single peak that is brighter at a viewing angle of 0 degrees, such as figure 1 shown. Depend on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357F21V5/02
Inventor 刘耕儒朱启智郑吉成许圣志
Owner AU OPTRONICS CORP