Display Substrate Data-Line Layout for Under-Screen Camera Brightness
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Solution Overview
Problem
In under-screen camera OLED display devices, the display brightness and current in low-density regions are significantly lower than in high-density regions, affecting the display effect.
Innovation Solution
A display substrate design with a first display region of high pixel density for normal display and a second display region with lower pixel density for accommodating the camera, featuring data line connections and pixel circuit arrangements that ensure consistent signal transmission across regions, including a data line connection portion to match data signals between the regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the pixel density is reduced in the second display region to accommodate the under-screen camera, then the camera functionality is improved, but the display brightness and current are significantly reduced
Solution Approach 1:
The patent applies local quality by creating different display regions with different pixel densities - the first display region maintains high pixel density for normal display, while the second display region has reduced pixel density to accommodate the camera. This allows each region to have optimized characteristics for its specific function, resolving the contradiction between camera functionality and display brightness.
Solution Approach 2:
The display panel is segmented into multiple display regions (first display region and second display region) with different pixel densities. The first display region uses normal pixel circuits for high brightness, while the second display region uses pixel circuits with reduced density to allow camera light transmission, thus resolving the contradiction between camera functionality and display performance.
2Reliability
If data lines are disconnected to form breaks for connecting different pixel circuit columns, then the signal transmission control is improved, but the data line complexity increases
Solution Approach 1:
The data lines are segmented with intentional breaks at specific locations to separate different pixel circuit column groups. This segmentation allows independent control and signal transmission to different display regions, improving signal transmission reliability while the break locations are strategically chosen to minimize overall line complexity.
Solution Approach 2:
The data line breaks act as intermediaries that allow different pixel circuit column groups to be independently controlled. By introducing these controlled discontinuities, the patent enables precise signal routing to different display regions, improving transmission control while the breaks are positioned to optimize rather than complicate the overall structure.
Data Source
AI summary
A display substrate and a display device are provided. The display substrate includes first sub-pixel circuits, first light emitting units, second sub-pixel circuits and second light emitting units. The display substrate includes a pixel circuit column group including a first pixel circuit column, a second pixel circuit column, a third pixel circuit column and a fourth pixel circuit column which are respectively connected with a first data line, a second data line, a third data line and a fourth data line. The second data line, the third data line and the fourth data line are disconnected to form first breaks, data lines at two side of the first break are connected with the first sub-pixel circuit and the second sub-pixel circuit respectively; the second data line is connected with the third data line or the fourth data line at the first break through a data line connection portion.