Display panel, crack detection method thereof and mobile terminal
A display panel and crack detection technology, which is applied to static indicators, instruments, identification devices, etc., can solve problems such as high cost, display panel cracks, and complicated detection methods, and achieve the effects of cost saving and process simplification
Inactive Publication Date: 2021-10-08
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology
[0002] In recent years, the quality of display panels has been paid more and more attention. When making display panels, there is a cutting process for the display panel. Cutting the display panel may cause cracks in the display panel, resulting in the display area being unable to display. Therefore, the display panel The finished product will have a link to detect cracks. The crack detection method of detecting voltage with a voltmeter through an external comparator is more complicated and costly
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[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention. In the present invention, unless otherwise stated, the directional words such as "upper" and "lower" generally refer to the upper and lower parts of the device in actual use or working state, specifically the direction of the drawing in the accompanying drawings. ...
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The the invention discloses a display panel, a crack detection method thereof and a mobile terminal. The display panel comprises a detection wire, a plurality of scanning lines, a first thin film transistor and a first terminal, the first thin film transistor and the first terminal are arranged in the non-display area, a first source electrode of the first thin film transistor is electrically connected with a detection scanning line in the scanning lines, and the first terminal is electrically connected with a first drain electrode of the first thin film transistor. When the display panel is used for crack detection, the first terminal is electrically connected with the detection wire, and when the display panel is used for display, the first terminal and the detection wire are arranged in an insulated manner; according to the embodiment of the invention, the first thin film transistors connected with the detection scanning lines and the first terminals are arranged, so that the pixels and the detection lines in the display area can be conducted through the first thin film transistors and the detection lines, the brightness change of the corresponding pixels is detected, crack detection is carried out on the display panel, the crack detection process is simplified, and the cost is saved.
Description
technical field [0001] The invention relates to the field of display, in particular to a display panel, a crack detection method thereof, and a mobile terminal. Background technique [0002] In recent years, more and more attention has been paid to the quality of display panels. When making display panels, there is a process of cutting the display panels. Cutting the display panels may cause cracks in the display panels, resulting in the display area being unable to be displayed. Therefore, the display panel The finished product will have a link to detect cracks. The crack detection method of using an external comparator to detect the voltage of the voltmeter is more complicated and costly. [0003] Therefore, there is an urgent need for a display panel, a crack detection method thereof, and a mobile terminal to solve the above technical problems. SUMMARY OF THE INVENTION [0004] Embodiments of the present invention provide a display panel, a method for detecting cracks,...
Claims
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IPC IPC(8): G09F9/30G09G3/00
CPCG09F9/30G09G3/006
Inventor 陶健
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD