Display panel, driving method thereof and display device

Abstract

The invention discloses a display panel, a driving method thereof and a display device, and relates to the technical field of display.The display panel comprises a plurality of cascaded sub-circuits, each sub-circuit comprises a starting signal input end, a driving signal output end and a shift signal output end; the starting signal input end of the first-stage sub-circuit receives a starting trigger signal, the starting signal input end of the mth-stage sub-circuit is connected with the shift signal output end of the (m-1) th-stage sub-circuit, and m is greater than or equal to 2; the detection circuit comprises a trigger signal input end, a detection signal input end and a signal output end; a trigger signal input end of the detection circuit receives a detection trigger signal, a detection signal input end is electrically connected with a driving signal output end of the nth-stage sub-circuit, a signal output end is at least electrically connected with a starting signal input end or a driving signal output end of the s-stage sub-circuit, n is greater than or equal to 1, and s is greater than or equal to n+1. Even if part of the sub-circuits are damaged, the normal use of the display panel is not affected.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a display panel, a driving method thereof, and a display device. Background technique [0002] From the era of CRT (Cathode Ray Tube, cathode ray tube) to the era of liquid crystal, and now to the era of OLED (Organic Light-Emitting Diode, organic light-emitting diode), the display industry has experienced decades of development and has become ever-changing. The display industry is already closely related to our lives. From traditional mobile phones, tablets, TVs and PCs to current electronic devices such as smart wearable devices and VR, display technology is inseparable. [0003] The display area of ​​the display panel is usually provided with sub-pixels arranged in an array, and the non-display area is provided with cascaded driving circuits, such as gate driving circuits, for scanning the sub-pixels row by row. In the cascaded gate drive circuit, if a gate ...

AI Technical Summary

Problems solved by technology

In the cascaded gate drive circuit, if a gate drive circuit is damaged, the gate drive circuit will not be able to scan the corresponding sub-pixel, and will not be able to transmit the shift signal to the next-level gate drive The gate drive circuit after the gate drive circuit of the damaged level cannot scan the corresponding sub-pixels. These sub-pixels cannot realize the display function, and the display panel has obvious display defects. Such defects are difficult to repair and large In some cases, it can only be disposed of as scrap, which is not conducive to saving product costs

Images