Display substrate and driving method thereof, display device and high-precision metal mask plate

Abstract

The invention discloses a display substrate and a driving method thereof, a display device and a high-precision metal mask plate. The display area is set to be a first display sub-region with large pixel distribution density and a second display sub-region with small pixel distribution density. Due to the fact that the pixel distribution density in the second display sub-region is small, elementssuch as a camera can be arranged in the second display sub-region, and a screen-to-body ratio of the display substrate is increased in the mode that the screen light transmittance is increased by reducing the local pixel distribution density. Moreover, when the display substrate is driven, a gray-scale value of sub-pixels of the second display sub-region is adjusted according to the light-emittingarea and the pixel distribution density of the sub-pixels, so large difference of the brightness of the two display sub-regions caused by inconsistent pixel distribution density of the first displaysub-region and the second display sub-region can be compensated, dark fringes existing at the boundary of the second display sub-region and the first display sub-region are reduced, and full-screen uniform display is realized.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display substrate, a driving method thereof, a display device and a high-precision metal mask. Background technique [0002] With the development of display technology, the full screen has a large screen-to-body ratio and an ultra-narrow bezel. Compared with ordinary display screens, it can greatly improve the visual effect of the viewer, and thus has received widespread attention. At present, in a display device with a full screen such as a mobile phone, in order to realize the functions of Selfie, video call and fingerprint recognition, a front camera, an earpiece, a fingerprint recognition area or physical buttons are usually arranged on the front of the display device. However, the setting of these necessary functional components has become a major factor restricting the increase in screen ratio. Contents of the invention [0003] Embodiments of the present invention pr...

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Problems solved by technology

[0003] Embodiments of the present invention provide a display substrate, a driving method thereof, a display device, and a high-precision metal mask to solve the problem of a small screen-to-body ratio in the prior art

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