Display Panel Pixel Circuit Relocation for Uniform PPI
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Solution Overview
Problem
In full-screen display panels, the placement of pixel circuits in a transition region between light-transmissive and display regions leads to reduced pixels per inch (PPI) in the light-transmissive region, resulting in differing display effects between regions, which adversely affect the overall display quality.
Innovation Solution
The display panel is designed with a first display region of higher transmittance, a second display region of normal transmittance, and a non-display region where the first pixel circuit and first gate drive circuit are disposed. This configuration avoids the need for a transition region, allows for uniform PPI across regions, and simplifies the circuit structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If pixel circuits are disposed in the transition region between light-transmissive and display regions, then the light-transmissive region can accommodate camera structures with higher transmittance, but the pixels per inch (PPI) in the light-transmissive region is reduced, resulting in different display effects between regions
Solution Approach 1:
The patent extracts the pixel circuits from the transition region and relocates them to the non-display region. This extraction resolves the contradiction by eliminating the PPI mismatch issue while preserving the high transmittance property of the light-transmissive region for camera placement.
2Illumination intensity
If pixel circuits are disposed in the peripheral region of the light-transmissive region, then the transmittance of the light-transmissive region is ensured, but the number of pixel circuits is reduced, affecting the display quality
Solution Approach 1:
The patent moves pixel circuits from the two-dimensional display area to the non-display region, effectively utilizing a different spatial dimension. This allows the light-transmissive region to maintain high transmittance while the full complement of pixel circuits is preserved in the non-display region, ensuring both optical performance and display quality.
3Illumination intensity
If a transition region is disposed between the first display region and the second display region to place pixel circuits, then the light-transmissive region can achieve higher transmittance, but the circuit structure complexity increases
Solution Approach 1:
The patent extracts the transition region concept entirely and relocates pixel circuits to the non-display region. This eliminates the need for a separate transition region, thereby reducing circuit structure complexity while maintaining the high transmittance characteristic of the first display region for camera placement.
4Illumination intensity
If pixel circuits are disposed in the transition region, then the light-transmissive region can be optimized for camera placement, but the drive capability requirements and cost increase
Solution Approach 1:
The patent extracts pixel circuits from the transition region and places them in the non-display region, which simplifies the drive capability requirements. This relocation reduces the complexity of signal routing and control, thereby lowering both the drive capability requirements and associated costs while preserving the optical optimization of the light-transmissive region.
Data Source
AI summary
A display panel and a display device. The display panel includes a first display region, a second display region, and a non-display region, where transmittance of the first display region is higher than transmittance of the second display region; at least one first display unit disposed in the first display region, at least one first gate drive circuit disposed in the non-display region and at least one first pixel circuits disposed in the non-display region, where the at least one first pixel circuit is connected to the at least one first display unit and configured to provide a drive current for the at least one first display unit, and the at least one first gate drive circuit is connected to the at least one first pixel circuit and configured to provide a drive signal for the at least one first pixel circuit.