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Backlight unit and test method thereof, liquid crystal module and test method thereof

A technology of a backlight unit and a testing method, applied in optics, nonlinear optics, instruments, etc., can solve problems such as cumbersome operation, achieve the effect of simple replacement operation and save time for optical index optimization

Inactive Publication Date: 2010-01-13
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the internal structure of the existing liquid crystal display device, when replacing the optical films, the front frame 2, the middle frame 1 and the liquid crystal panel 6 need to be removed every time. Frame 1 and front frame 2 are cumbersome to operate, and the whole replacement process takes half an hour or longer

Method used

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  • Backlight unit and test method thereof, liquid crystal module and test method thereof
  • Backlight unit and test method thereof, liquid crystal module and test method thereof
  • Backlight unit and test method thereof, liquid crystal module and test method thereof

Examples

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Embodiment 1

[0041] like figure 2 As shown, it is a specific embodiment of the backlight unit of the present invention. In this embodiment, the backlight unit includes a middle frame 1, the middle frame 1 has a first groove 12, and an optical film is arranged in parallel in the first groove 12. sheet and the liquid crystal panel 6, the diffusion plate 3 is shown in the figure, the light transmitted by the optical film can enter the liquid crystal panel 6, and the first slit 14 is arranged at the position corresponding to the optical film in the first groove 12, the optical film The film is taken out from the middle frame 1 through the first slit 14 , or the optical film is inserted into the middle frame 1 through the first slit 12 .

[0042] like image 3 As shown, in the backlight unit in this embodiment, since each optical film can be taken out from the middle frame 1 or inserted into the middle frame 1 through the first slit 14, the optical film can be replaced by this method without ...

Embodiment 2

[0050] like Figure 4 As shown, it is an embodiment of the backlight unit testing method of the present invention. The structure and function of the backlight unit in this embodiment are the same as the structure and function of the backlight unit in Embodiment 1. Wherein, the backlight unit testing method includes:

[0051] Step 101, taking out the original optical film from the middle frame through the first slit;

[0052] Step 102, inserting a new optical film into the middle frame through the first slit;

[0053] Step 103, turn on the backlight source, and test the optical index of the backlight unit under the action of the new optical film.

[0054] In the backlight unit testing method in this embodiment, since the optical film can be taken out from the middle frame through the first gap or inserted into the middle frame, the optical film can be replaced by this method without The middle frame and the liquid crystal panel need to be dismantled, and the whole replacemen...

Embodiment 3

[0066] like Figure 7 As shown, it is a specific embodiment of the liquid crystal module of the present invention. In this embodiment, the liquid crystal module includes a front frame 2, and the front frame 2 has a second groove (not shown), and the second groove is provided with backplane (see figure 1 ), a middle frame 1 is arranged on the back panel. combine figure 2 As shown, the middle frame 1 has a first groove 12, and an optical film and a liquid crystal panel 6 are arranged in parallel in the first groove 12, and the light transmitted by the optical film can enter the liquid crystal panel 6, and in the first groove A first slit 14 is provided at a position corresponding to the optical film in 12, a second slit 24 is provided at a position corresponding to the first slit 14 in the second groove, and the optical film passes through the first slit 14 and the second slit. 24 is taken out from the middle frame 1, or inserted into the middle frame 1 through the first sli...

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Abstract

The invention discloses a backlight unit and a test method thereof, and a liquid crystal module and a test method thereof, which relate to the manufacturing technical field of liquid crystal display equipment and aim to ensure that the replacement operation of an optical membrane is simple. The backlight unit comprises a middle frame which is provided with a first groove, an optical membrane and a liquid crystal panel are arranged in parallel in the first groove, the first groove is internally provided with a first gap at the position corresponding to the optical membrane, and the optical membrane is taken out of or inserted into the middle frame through the first gap. The backlight unit test method comprises the following steps: taking out the prior optical membrane of the middle frame through the first gap; inserting a new optical membrane into the middle frame through the first gap; and lightening a backlight source, and testing an optical index of the backlight unit under the action of the new optical membrane. The invention also discloses the liquid crystal module and the test method thereof, and the test method can be used for testing the optical index of the backlight unit or the liquid crystal module.

Description

technical field [0001] The invention relates to the technical field of manufacturing liquid crystal display devices, in particular to a backlight unit and a testing method thereof, a liquid crystal module and a testing method thereof. Background technique [0002] At present, liquid crystal display devices, such as liquid crystal TVs and liquid crystal displays, have been widely used due to their remarkable advantages such as thin body, low radiation, and high-definition display. However, the liquid crystal panel in the liquid crystal display device cannot emit light by itself, and usually needs to use a backlight source as a light source for illumination. Moreover, in order to obtain a good display effect, various optical films need to be installed between the backlight source and the liquid crystal panel, such as diffusion plates, diffusion sheets, and enhancement films, etc. These optical films can transmit and diffuse the light emitted by the backlight source. In order ...

Claims

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Application Information

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IPC IPC(8): G02F1/1333G02F1/13
Inventor 张建中赵仁智
Owner HISENSE VISUAL TECH CO LTD
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