Display Substrate Layout for Under-Display Camera Resolution Uniformity
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Solution Overview
Problem
In display technologies, offscreen cameras compromise the visual and usage experience by requiring lower resolution in display regions with cameras, affecting the overall screen-to-body ratio and display effect.
Innovation Solution
A display substrate design with a first display region of higher light transmittance and a second display region of lower transmittance, featuring first and second pixel circuits and light emitting devices, where the density of light emitting devices in both regions is matched, allowing the first pixel circuits in the bezel region to drive the first light emitting devices, thus maintaining consistent resolution and improving display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If offscreen cameras are integrated into the display region, then screen-to-body ratio is improved, but resolution in camera regions deteriorates
Solution Approach 1:
The display region is segmented into a first display region (without camera) and a second display region (with camera). Different pixel circuit configurations are used in each region: the first region uses pixel circuits connected to both gate and data lines for full resolution, while the second region uses pixel circuits connected only to gate lines for lower resolution, accommodating the camera while maintaining overall high screen-to-body ratio
Solution Approach 2:
Different quality levels are applied to different regions of the display. The first display region maintains high resolution with complete pixel circuits, while the second display region accepts lower resolution to accommodate the camera module. This local differentiation resolves the contradiction by allowing high screen-to-body ratio overall while accepting reduced resolution specifically in the camera region
2Adaptability or versatility
If pixel circuits are removed from the first display region to accommodate camera, then camera integration is enabled, but driving capability for light emitting devices is lost
Solution Approach 1:
The pixel circuits from the first display region are extracted and relocated to the bezel region. These relocated pixel circuits retain their driving capability and are used to drive the light emitting devices in the first display region, thus enabling camera integration while preserving the necessary driving functionality
Solution Approach 2:
The bezel region acts as an intermediary space that houses the relocated pixel circuits. These circuits serve as mediators between the control system and the light emitting devices in the first display region, enabling camera integration in the display region while maintaining driving capability through the intermediary pixel circuits in the bezel
Data Source
AI summary
Disclosure provides a display substrate, a display panel and a display device. The display substrate includes a substrate, a drive circuit layer and a light emitting device layer sequentially on the substrate, a display region of the substrate includes first and second display regions on a side of the first display region, light transmittance of the first display region is larger than that of the second display region; the drive circuit layer includes first pixel circuits in bezel region around the display region, second pixel circuits in the second display region; the light emitting device layer includes first light emitting devices, second light emitting devices; each first light emitting device is electrically connected with each first pixel circuit; each second light emitting device is electrically connected with each second pixel circuits; a density of the first light emitting devices is same as a density of the second light emitting devices.