Display device and method for repairing and detecting the same
A technology for a display device and a display area, which is used in identification devices, nonlinear optics, instruments, etc., and can solve the problems of short circuit between the common electrode and the data line, disconnection of the data line, and inability to repair again.
Active Publication Date: 2021-03-23
AU OPTRONICS KUNSHAN CO LTD
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Problems solved by technology
At present, after the repair, the array substrate can only be retested to confirm whether the repair is successful. If the repair energy of the laser is too weak, it can be repaired again, but if the energy of the laser is too strong, it will break down the connection between the data line and the common electrode. The dielectric layer between the common electrode and the data line will cause a short circuit; if the energy is stronger, the source / drain of the thin film transistor will be broken down, causing the data line to be disconnected, which will not be able to be repaired again
Method used
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Embodiment Construction
[0041] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:
[0042] figure 1 is a schematic diagram of a display device according to an embodiment of the present invention. like figure 1 As shown, the display device 100 includes a substrate 110 on which a plurality of thin film transistors 120 , data lines DL, a first insulating layer 130 , a common electrode CE, a second insulating layer 140 and a pixel electrode PE are sequentially formed. Wherein, each thin film transistor 120 includes a semiconductor layer 121, a gate insulating layer 122, an insulating layer 123, a source electrode S, a drain electrode D, and a gate electrode G, and the data line DL is coupled to the source electrode of the thin film transistor 120 The S or the drain electrode D, and the common electrode CE correspond to at least one thin film transistor 120 . Specifically, the semiconductor layer 121 can be mad...
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The invention provides a display device and a repair and detection method thereof. The display device comprises a plurality of thin film transistors, wherein each thin film transistor is provided witha grid electrode, a source electrode and a drain electrode; a plurality of data lines respectively coupled to the drain electrode or source electrode of the thin film transistor; a common electrode corresponding to at least one of the thin film transistors; and a repair detection circuit which comprises a first detection pad which is provided with a first detection metal pad and a first detectionmetal wire, wherein the first detection metal wire is electrically connected with the first detection metal pad; a second detection pad provided with a second detection metal pad and a second detection metal wire, wherein the second detection metal wire is electrically connected with the second detection metal pad; the first detection metal line and the second detection metal line have an overlapping area and are electrically connected in the overlapping area. Laser energy can be adjusted in real time to ensure the repair success rate.
Description
technical field [0001] The present invention relates to a display device, and in particular to a display device including a repair detection circuit and a repair detection method thereof. Background technique [0002] With the development of technology, display devices are widely used in many electronic products, such as mobile phones, tablet computers, watches and so on. In order to improve display quality, large-size, high-resolution, and high-brightness display devices emerge as the times require. However, it is inevitable that defective products will be produced during the production process, and it is necessary to repair the produced defective products to save production costs. [0003] Generally, in the process of manufacturing the active element array substrate of the display device, inspection procedures are performed to detect defects, and laser repair processing is performed on the defects. For the display device designed with AHVA structure, during the productio...
Claims
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IPC IPC(8): G09F9/00G02F1/1362
Inventor 何孟修
Owner AU OPTRONICS KUNSHAN CO LTD