Display panel and display device
A display panel and substrate technology, applied in the direction of instruments, optics, nonlinear optics, etc., can solve the problems of uneven backlight, affecting the display effect of the screen, and poor static protection, so as to improve the protection of static electricity and enhance the display effect of the screen Effect
Active Publication Date: 2022-07-12
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology
[0004] Based on this, it is necessary to provide a display panel and a display device for the technical problems that the traditional display panel has poor electrostatic protection, which easily leads to unevenness of the backlight and affects the display effect of the picture.
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[0041] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the related drawings. Preferred embodiments of the present application are shown in the accompanying drawings. However, the application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
[0042] In the description of this application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation...
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The present application relates to a display panel and a display device. The display panel includes a substrate, a guard ring, a shorting bar, a first COM line and a second COM line. An ESD device surrounding the operable area is arranged on the substrate; the guard ring surrounds the operable area; a short circuit is arranged between the operable area and the guard ring; the shorting bar is connected to the guard ring; The two ends of the first COM line are respectively connected to short-circuit bars; the second COM line surrounds the operable area and is arranged between the first COM line and the guard ring; the two ends of the second COM line are respectively connected to short-circuit rod; the input end of the ESD device is connected to the operable area, the first output end is connected to the first COM line, and the second output end is connected to the second COM line. In the present application, the two COM lines are arranged around the operable area, and then connected to the peripheral protection ring through the shorting bar, so as to play the role of electrostatic protection, improve the electrostatic protection strength of the display panel, and enhance the screen display effect.
Description
technical field [0001] The present application relates to the technical field of display panels, and in particular, to a display panel and a display device. Background technique [0002] Mini-LED is based on the form of active matrix drive as a backlight source, and uses Local-dimming technology to replace the traditional LCD backlight source, which can achieve high peak brightness, significantly improve the contrast of LCD, and achieve a display effect comparable to OLED. Not only that, from the perspective of cost, the cost of large-size OLED TVs is currently very high. LCDs using AM-Mini-LED backlights have obvious cost advantages and become the key technology for LCDs to challenge OLED displays. As a backlight source, AM-LED requires a relatively large driving current, and may face a large voltage drop (IR drop) problem, resulting in the unevenness of AM-LED backlight, thus affecting the display effect of the LCD screen. In order to solve this problem, In the design, th...
Claims
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IPC IPC(8): G02F1/1333
CPCG02F1/1333G02F2202/22Y02B20/30
Inventor 张晓东
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD