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

Abstract

The invention discloses a display substrate, a driving method thereof, a display device and a high-precision metal mask plate, because the display area is set as a first display sub-area with a large pixel distribution density and a second display sub-area with a small pixel distribution density. Since the pixel distribution density in the second display sub-region is relatively small, components such as cameras can be arranged in the second display sub-region, that is, the method of reducing the local pixel distribution density to increase the light transmittance of the screen is used to improve the screen of the display substrate. Proportion. Moreover, when the display substrate is driven, since the gray scale value of the sub-pixels in the second display sub-region is adjusted according to the light-emitting area of ​​the sub-pixels and the pixel distribution density, it can compensate for the difference between the first display sub-region and the second display. The large difference in the brightness of the two display sub-regions caused by the inconsistency of the pixel distribution density of the sub-pixels, thereby reducing the dark lines existing on the boundary between the second display sub-region and the first display sub-region, and realizing a full-screen uniform display.

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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