A kind of thin film transistor and its maintenance method, array substrate and display device
A technology for thin film transistors and array substrates, applied in the display field, can solve problems such as inability to maintain thin film transistors, and achieve the effects of realizing cost, improving yield, and reducing losses
Active Publication Date: 2020-07-31
BOE TECH GRP CO LTD +1
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a thin film transistor and its maintenance method, array substrate and display device, so as to solve the problem that the source and drain of the thin film transistor cannot be repaired when the source and drain are short-circuited
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[0022] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0023] In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the machine or element referred to must have a specific orientation, use a specific Azimuth configuration and operation, therefore, should not be construed as limiting the invention.
[0024] In the description of the present invention, it should be noted that unless otherwise ...
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The invention provides a thin-film transistor, a maintenance method thereof, an array substrate and a display device. The thin-film transistor provided by the invention comprises a grid electrode, anactive layer, a plurality of source electrodes and a plurality of drain electrodes, wherein the source electrodes and the drain electrodes are arranged alternately. The first ends of the source electrodes are mutually connected, and the second ends of the drain electrodes are mutually connected. The grid electrode is provided with at leas tone first hollow area, and the orthographic projections ofeach source electrode and each drain electrode in the first hollow area are not overlapped. When the source electrodes and the drain electrodes inside the thin-film transistor are short-circuited, the maintenance for the thin-film transistor can be realized by cutting the source electrodes or the drain electrodes positioned in the first hollow area of the orthographic projection region on the grid electrode. Therefore, the thin-film transistor has the characteristic of maintainability, the yield of the corresponding product is promoted, and then the loss can be reduced to realize cost reduction.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a thin film transistor and a maintenance method thereof, an array substrate and a display device. Background technique [0002] In the field of flat panel display technology, Thin Film Transistor Liquid Crystal Display (TFT-LCD) has the advantages of small size, low power consumption, and relatively low manufacturing cost, and gradually occupies a dominant position in today's flat panel display market. The main structure of TFT-LCD is the array substrate and the color filter substrate of the box. The array substrate uses thin film transistors as switches to control corresponding pixel units. When the thin film transistor is in an on state, a data signal can be transmitted to the pixel unit. [0003] TFT-LCD usually adopts a normally white mode or a normally black mode, and when the thin film transistor has defects such as short circuit or open circuit, it will not be able to c...
Claims
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IPC IPC(8): H01L29/786H01L27/12G02F1/1362
CPCG02F1/136259H01L27/1222H01L29/78618
Inventor 王建艳李彦生刘芳转
Owner BOE TECH GRP CO LTD