OLED panel and method for detecting cathode layer deviation

Abstract

The embodiment of the invention discloses an OLED panel and a method for detecting the deviation of the cathode layer. The OLED panel includes: a display area; a detection area located on the periphery of the display area; a detection terminal group located in the detection area, the detection terminal group includes multiple sets of detection terminals, each group of detection terminals includes a detection end facing the display area, different groups The distance between the detection end of the detection terminal and the display area is different; the cathode layer is located in the display area and extends to the detection area. Compared with the prior art, the OLED panel and the method for detecting the offset of the negative layer in the embodiment of the present invention set the detection area outside the display area of ​​the OLED panel, and set multiple groups of different distances from the display area in the detection area. The detection terminal determines the position of the cathode layer in the OLED panel by determining the connection between the cathode layer and those detection terminals, and then determines whether the cathode layer is biased, so as to prevent the OLED panel from being unable to use normally due to the displacement of the cathode layer.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to an OLED panel and a method for detecting the deviation of a cathode layer. Background technique [0002] Currently, organic light-emitting diode (OLED) display devices are becoming more and more popular. Such OLED display devices include OLED panels. The OLED panels include a glass substrate, pixels on the glass substrate, and a cathode layer electrically connected to these pixels. The cathode layer in the OLED panel is generally formed on the glass substrate by processes such as evaporation, and the cathode layer is roughly laid on the glass substrate in the form of a film. At this time, the cathode layer is connected to each pixel on the glass substrate to control the working state of these pixels. [0003] However, in the prior art, if the position of the cathode layer deviates during the evaporation process of the cathode layer, the cathode layer is not laid on ...

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Problems solved by technology

[0003] However, in the prior art, if the position of the cathode layer deviates during the evaporation process of the cathode layer, the cathode layer is not laid on the target area of ​​the glass substrate, and some pixels are not connected to the cathode layer. Otherwise, it cannot work normally, causing some areas of the OLED panel to display incorrectly.

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