Light guide uniformity detection device

A detection device and uniformity technology, which is applied in the direction of testing optical performance, geometric characteristics/aberration measurement, etc., can solve the problems of complicated management and large differences in the shape of optical light guide plates, and achieve the effect of easy management and easy use

Pending Publication Date: 2022-05-31
中航华东光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, due to the large size and aspect ratio of liquid crystal display modules, the shapes of optical light guide plates of different products are very different. There are many types of product structures and modules used for matching detection, and the management is complicated.

Method used

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Embodiment Construction

[0029] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention. The inner side mentioned in the present invention is the side close to the optical light guide plate to be tested.

[0030] Such as Figure 5 and Figure 6 As shown, the present invention provides a detection device for the uniformity of light guide. The detection device includes a bottom plate 1, and a first frame 2, a second frame 3 and a third frame 4 are respectively installed on any three sides of the bottom plate 1. A frame 2 and the second frame 3 are adjacent and vertical, the third frame 4 and the first frame 2 are parallel to each other, the first frame 2 and the second frame 3 are fixed frames, and the third frame 4 can be positioned along the second ...

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Abstract

The invention discloses a light guide uniformity detection device in the field of optical light guide plate detection, the detection device comprises a bottom plate, any three edges of the bottom plate are respectively provided with a first frame, a second frame and a third frame, the first frame and the second frame are adjacent and vertical, and the third frame and the first frame are parallel to each other. The first frame and the second frame are fixed frames, and the third frame is a movable frame capable of translating along the second frame; lED light bars are installed on the inner walls of the first frame and the second frame. The detection device further comprises a universal optical module. By using the detection device, optical light guide plates with different sizes can be detected, complicated matching is not needed, and the detection device is convenient to use and manage.

Description

technical field [0001] The invention relates to the field of detection of optical light guide plates, in particular to a detection device for light guide uniformity. Background technique [0002] At present, liquid crystal display occupies most of the market in the display industry. Liquid crystal display is an electronic display terminal product, which is mainly composed of liquid crystal panel, backlight, structural parts, circuit control board and so on. Liquid crystal display is a passive display technology that requires a backlight system to provide a light source to complete the display. At present, there are generally two backlight layout methods: direct-lit backlight and side-lit backlight. In the side-lit backlight, an optical light guide plate needs to be added to realize the turning of light from the horizontal direction to the vertical direction, as shown in the accompanying drawings. figure 1 shown. [0003] In the side-type backlight system, the optical light...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02
CPCG01M11/025
Inventor 王泓泉陈召全卢业能张伟冯吉祥包训旺张勇许培文王竞汪军杨丹王颖李亚茹
Owner 中航华东光电有限公司
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