Display panel, display panel crack detection method and display device

Abstract

The invention discloses a display panel, a display panel crack detection method and a display device. The display panel comprises a display area and a non-display area around the display area, and thenon-display area comprises a gate drive circuit and a crack detection circuit. The crack detection circuit comprises at least one detection unit. Each detection unit comprises an input signal line, an output signal line, multiple control signal lines extending along a third direction and a plurality of detection subunits distributed along a second direction. Each detection subunit comprises a control end, an input end and an output end, a control end of each detection subunit is electrically connected with one control signal line, each input end is electrically connected with the corresponding input signal line, and each output end is electrically connected with the corresponding output signal line. Compared with the prior art, the display panel, the display panel crack detection method and the display device have advantages that when input signals are provided for the detection subunits, positions of cracks in the non-display area can be determined according to acquired output signals of the output signal lines, and accordingly detection efficiency is improved while the crack detection rate is increased.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a display panel, a crack detection method thereof, and a display device. Background technique [0002] In the production process of display devices, in order to achieve higher light transmittance, light and thin substrates such as glass substrates or plastic substrates are usually used to make display screens. In the front stage of the module process, the display screen needs to be cut into the required size through the cutting process. Affected by the cutting process, some cracks are easily formed in the edge area of ​​the display screen. During the follow-up process and the use of the final product, cracks are very likely to occur. It may extend to the inside of the display screen, affecting the normal display of the display screen. [0003] The existing crack observation methods mainly rely on on-site observers to observe with naked eyes. For small-sized cra...

AI Technical Summary

Problems solved by technology

In the front stage of the module process, the display screen needs to be cut into the required size through the cutting process. Affected by the cutting process, some cracks are easily formed in the edge area of ​​the display screen. During the follow-up process and the use of the final product, cracks are very likely to occur. It is possible to extend to the inside of the display, affecting the normal display of the display

[0003] The existing crack observation methods mainly rely on on-site observers to observe with naked eyes. For small-sized cracks, observation with a microscope is also required. However, these methods are quite time-consuming and laborious, and the detection rate is relatively low.

[0004] After the module process, the microscope cannot observe the cracks in the edge area, which makes the crack observation must be carried out in the front stage of the module process, and it is difficult to determine the edge area of ​​the display screen during the subsequent process and the use of the final product Whether cracks are formed and the extension of cracks

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