Backlight module and flat panel display

A technology of backlight module and light incident surface, which is applied in the direction of instruments, optics, light guides, etc., can solve the problem of uneven brightness in the visible area, and achieve the effect of improving quality

Inactive Publication Date: 2012-10-03
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a backlight module and a flat-panel display to overcome the defect of uneven luminance in the visible area in the prior art

Method used

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  • Backlight module and flat panel display
  • Backlight module and flat panel display
  • Backlight module and flat panel display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] figure 2 and Figure 3A , Figure 3B and Figure 4A A first embodiment of the present invention is shown. The backlight module 1 includes: a light guide plate 11 , a plurality of light emitting elements 12 , and a positioning element 14 . Figure 3A for figure 2 The A-A section diagram, Figure 3B for figure 2 The B-B section diagram, Figure 4A Then it is a schematic diagram of the optical performance of this embodiment. Wherein, for the convenience of description and performance of the technical features of the present application, figure 2 Only the light guide plate 11 and the light emitting element 12 are kept, while other elements are omitted.

[0046] The light guide plate 11 is roughly in the shape of a parallelogram, including a light-incident surface 11a and an upper surface 11b, wherein the upper surface 11b intersects the light-incident surface 11a.

[0047]A plurality of light-emitting elements 12, each light-emitting element 12 preferably has ...

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Abstract

The invention discloses a backlight module and a flat panel display. The backlight module comprises a light guide plate, a plurality of light-emitting components, a medium and a positioning component, wherein the light guide plate comprises an incident light surface and an upper surface intersected with the incident light surface; each light-emitting component projects a ray from the midpoint to the incident light surface of the light guide plate; the medium is positioned on the upper surface of the light guide plate and positioned among the total reflection angles, of the incident light surface and the rays, in the light guide plate; and the positioning component is arranged corresponding to the upper surface. The positioning-against position is positioned on a proper position outside the total reflection angles, so that the contact surface of the positioning component and the light guide plate does not influence the reflection of the rays and does not damage the total reflection of the rays, the problem that the total reflection of the rays is damaged by the small difference of the refractive index of the material of the positioning component of the conventional structure to thelight guide plate is effectively solved, and the quality of the flat panel display is improved.

Description

[0001] The present invention is a divisional application based on the parent application (application number: 200910173883.5, invention name: design method of backlight module, flat panel display and its positioning components). technical field [0002] The invention relates to a backlight module, in particular to a design method of a backlight module capable of improving luminance uniformity, a flat panel display and a positioning component thereof. Background technique [0003] With the rapid progress and evolution of display technology, the traditional cathode ray tube (cathode ray tube, CRT) has been gradually eliminated due to problems such as poor space utilization and large energy consumption, and has been replaced by light, thin, short, small LCD (liquid crystal display, LCD). Due to the advantages of high display quality, low energy consumption and no radiation, liquid crystal displays are widely used in notebook computers, computer screens, mobile phones, personal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357F21S8/00F21V8/00F21V17/00F21V19/00F21V13/00F21Y101/02
Inventor 邱继锋王景辉简叶恩
Owner AU OPTRONICS CORP
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