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Screen body dummy device detection method and device

A technology of dummy devices and detection methods, applied to instruments, static indicators, etc., can solve problems such as large differences, interference from engineer judgments, poor repeatability, etc., to achieve the effects of improving precision and accuracy, avoiding repeated testing, and increasing production capacity

Active Publication Date: 2019-10-25
YUNGU GUAN TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, due to the fact that the device is connected through holes during the process, the contact effect between different materials is not good, and the device itself has micro residues and film layer stress, etc., resulting in unstable electrical characteristics of the dummy device, making the first detection data different from the subsequent detection data. There are many differences and poor repeatability, and it is impossible to determine whether the process of the dummy device is normal, causing interference to the engineer's judgment

Method used

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  • Screen body dummy device detection method and device
  • Screen body dummy device detection method and device
  • Screen body dummy device detection method and device

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Embodiment Construction

[0028] Features and exemplary embodiments of various aspects of the invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention.

[0029] The embodiment of the present invention provides a method and device for detecting dummy screen devices. Using the method for detecting dummy screen devices in the implementation of the present invention can stabilize the electrical characteristics of dummy devices, improve the accuracy and accuracy of detection data, and avoid repeated testing. , It can be determined whether the process of the dummy device is normal through only one inspection, so as to achieve the purpose of increasing production capacity.

[0030] figure 2 It is a schematic flowchart of a method for detecting dummy screen devices provided by an embodiment of the present invention.

[0031] Such as figure 2 As shown, the method for dete...

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Abstract

The invention discloses a screen body dummy device detection method and device. The method comprises the following steps: applying one or more groups of preprocessing signals to a dummy device to enable the electrical characteristics of the dummy device to be in a stable state; and applying a detection signal to the dummy device to obtain one or more electrical characteristic parameters of the dummy device. By adopting the technical scheme of the embodiment of the invention, the electrical characteristics of the dummy device can be stabilized, the precision and accuracy of detection data are improved, and repeated testing is avoided.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method and device for detecting dummy screen components. Background technique [0002] Such as figure 1 As shown, the screen body has a display area DA and a non-display area NDA located around the display area. The display area DA is provided with effective devices (such as TFT transistors) for driving pixels to work, and the non-display area NDA is provided with dummy devices. The effective device and the dummy device are formed synchronously when preparing the array substrate, and both have the same process parameters, and the electrical characteristics of the dummy device can reflect the electrical characteristics of the effective device. [0003] In the prior art, the electrical characteristic parameters of the dummy device are mainly detected by applying a detection signal once. However, due to the fact that the device is connected through holes during the process, the...

Claims

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Application Information

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IPC IPC(8): G09G3/00
CPCG09G3/006
Inventor 张世权王豪
Owner YUNGU GUAN TECH CO LTD
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