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Display screen defect evaluation device, maintenance method thereof, and to-be-detected display screen

A technology for evaluation devices and display screens, which is applied in the direction of measuring devices, optical devices, and optical testing for flaws/defects, etc. It can solve problems such as poor reliability of display screens, and achieve the effects of improving factory quality, improving scanning effects, and facilitating adjustments

Active Publication Date: 2017-08-08
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a display screen defect evaluation device and its maintenance method and the display screen to be tested, so as to solve the problem of poor reliability of display screen defect evaluation in the prior art

Method used

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  • Display screen defect evaluation device, maintenance method thereof, and to-be-detected display screen
  • Display screen defect evaluation device, maintenance method thereof, and to-be-detected display screen
  • Display screen defect evaluation device, maintenance method thereof, and to-be-detected display screen

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] It should be noted that the terminology used here is only used to describe specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to inclu...

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Abstract

The invention provides a display screen defect evaluation device, a maintenance method thereof, and a to-be-detected display screen. Specifically, the display screen defect evaluation device includes a detection unit, and the detection unit comprises: an optical lens, which has a variable focal length; and an optical filter component, which is disposed oppositely to the optical lens and is provided with a plurality of marks, which fit the focus of the optical lens in order so as to calibrate the position of each optical filter in the optical filter component. The invention solves the problem of poor reliability of display screen defect evaluation in the prior art.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display screen defect evaluation device, a maintenance method thereof, and a display screen to be tested. Background technique [0002] Imaging colorimeters can effectively evaluate the brightness, color uniformity or contrast of displays and reliably identify defects on displays. [0003] Existing image brightness and colorimeters are usually equipped with filter components, through which filters with different light transmittances are selected to determine the specific type of defects of the display screen to be tested. Filters are consumables. It needs to be replaced frequently, and after the filter assembly of the existing image brightness colorimeter replaces the filter, it cannot be guaranteed that the distance between each filter and the optical lens is equal when it is in the detection position, that is to say, it cannot be guaranteed that each filter The light sheets...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/95G01N21/01G01B11/06
CPCG01B11/06G01N21/01G01N21/95G01N2021/0112
Inventor 丁昊孙晖
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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