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A kind of inspection method of flexible display panel and its defect

A flexible display and display panel technology, applied in semiconductor/solid-state device components, diodes, semiconductor/solid-state device testing/measurement, etc., can solve problems affecting production capacity, defective panels, etc., and achieve the effect of avoiding production capacity

Active Publication Date: 2022-04-26
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology

[0005] This application provides an inspection method for flexible display panels and their defects, which can solve the problem that the defective defects caused by bending stress in the production process of existing flexible display panels are not discovered in time, which leads to the impact of defective panels entering the mass production stage. capacity problem

Method used

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  • A kind of inspection method of flexible display panel and its defect
  • A kind of inspection method of flexible display panel and its defect
  • A kind of inspection method of flexible display panel and its defect

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Embodiment Construction

[0034] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments that the present application can be used to implement. The directional terms mentioned in this application, such as [top], [bottom], [front], [back], [left], [right], [inside], [outside], [side], etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the application, but not to limit the application. In the figures, structurally similar elements are denoted by the same reference numerals.

[0035] The present application aims at the technical problem that the defective defect caused by the bending stress in the production process of the existing flexible display panel is not discovered in time, which causes the defective panel to enter the mass production stage and affect the production capacity. This embodiment can solve the defect.

[0036] Please refer to...

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Abstract

The application provides an inspection method for a flexible display panel and its defects. The flexible display panel includes a display area and a bending area located on one side of the display area. Color-changing material, the mechanochromic material will change color due to the stress and deformation of the film layer. Therefore, during the bending test of the flexible display panel, the film layer will produce a certain degree of color or luminance change. The machine checks the degree of discoloration of the film layer to determine whether there are defects in the flexible display panel during the bending test.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a flexible display panel and a defect inspection method thereof. Background technique [0002] Compared with traditional screens, flexible OLED (organic light-emitting diode display devices) not only has the characteristics of bendability and good flexibility, but also is thinner and thinner in volume, and lower in power consumption than traditional display devices, which helps to improve The battery life of the device. [0003] With the application of flexible OLED screens, folding screens have also emerged as the times require. However, during the production process, stress will be generated during bending, resulting in separation between layers, or breakage and other undesirable problems. In response to this problem, it is often not found in time in the existing production process, which leads to the mass production of defective panels and affects production capaci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32H01L23/544H01L21/66
CPCH01L22/30H01L22/12H10K59/50H10K59/12
Inventor 郑敏金武谦赵勇
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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