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Array substrate, signal line detection method, display panel and display device

A technology for array substrates and display panels, applied in static indicators, instruments, etc., can solve the problem of inability to detect short circuits or open circuits of signal lines, and achieve the effect of improving detection accuracy and reducing detection costs.

Active Publication Date: 2016-05-11
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD +1
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  • Abstract
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  • Claims
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Problems solved by technology

However, this solution is suitable for display panels with large pixel unit sizes. When the pixel unit size is small, this solution cannot realize the detection of short circuit or open circuit of signal lines.

Method used

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  • Array substrate, signal line detection method, display panel and display device
  • Array substrate, signal line detection method, display panel and display device
  • Array substrate, signal line detection method, display panel and display device

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Embodiment Construction

[0030] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0031] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0032] Please refer to figure 1 , which shows a schematic structural diagram of an array substrate according to an embodiment of the present application. like figure 1 As shown, in this embodiment, the array substrate may include a plurality of signal lines and a detection...

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Abstract

The invention discloses an array substrate, a signal line detection method, a display panel and a display device. The array substrate comprises a plurality of signal lines and a detection circuit, wherein the detection circuit includes a control circuit, a plurality of transistors, a plurality of test lines and a plurality of receiving lines; each test line is connected with one end of at least one signal line; and a first electrode of each transistor is connected with one end of one signal line, a grid electrode is connected with an output end of the control circuit, and a second electrode is connected with one receiving line corresponding to the signal line. Different test signals are applied to the signal line in the array substrate, and the corresponding relationship between the receiving signals and test signals is tested, so that the detection of a short circuit and an open circuit of the array substrate can be realized, the test cost is lowered, and the detection precision of the array substrate is improved.

Description

technical field [0001] The present application relates to the field of display technology, in particular to an array substrate, a signal line detection method, a display panel and a display device. Background technique [0002] In the traditional manufacturing process of the display panel, it is necessary to cut the prepared array substrate. During cutting, the electrodes on the array substrate may be scratched, resulting in a short circuit or disconnection of the signal lines, so that the display panel cannot normally perform signal conversion and display. Therefore, it is necessary to inspect the signal lines of the cut array substrate to ensure normal display of the display panel. [0003] The current detection methods mainly include the following: one is to set a special detection area on the array substrate, and use a detection circuit to detect whether the gate line or the data line is disconnected. This solution occupies part of the typesetting space and increases t...

Claims

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Application Information

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IPC IPC(8): G09G3/00
CPCG09G3/006
Inventor 赵剑陈江川
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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