Display Panel Pixel Layout for Low Optical Signal Distortion
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Solution Overview
Problem
Existing display devices face challenges in reducing optical signal distortion and simplifying wiring design due to variations in transmittance across different areas of the display panel, which affect the functionality of electronic modules like cameras and sensors.
Innovation Solution
The display device incorporates a display panel with specific pixel configurations and connection lines, including transparent conductive oxides, curved pixel electrodes, and insulating layers to minimize optical signal distortion and prevent short circuits, while allowing for efficient transmission of optical signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If connection lines are arranged in the same layer to simplify wiring design, then wiring complexity is reduced, but optical signal distortion increases due to interference with optical signals passing through the display panel
Solution Approach 1:
The patent applies dimensional separation by arranging connection lines for different color pixels in different layers (first connection line in first layer, second connection line in second layer). This vertical separation in the Z-dimension eliminates optical interference while maintaining wiring functionality, resolving the contradiction between simplified wiring and reduced optical distortion.
2Manufacturing precision
If pixel electrodes have straight edges for easy manufacturing, then manufacturing precision is improved, but optical signal distortion increases due to diffraction effects
Solution Approach 1:
The patent implements curved edges on pixel electrodes instead of straight edges. This curvature design reduces optical diffraction effects that cause signal distortion, while the curved shapes can still be manufactured with standard fabrication techniques, thereby reducing optical harm without significantly compromising manufacturing precision.
3Object-affected harmful factors
If transparent conductive oxide is used in connection lines to reduce optical interference, then optical signal transmission is improved, but electrical conductivity may be reduced compared to metal conductors
Solution Approach 1:
The patent uses transparent conductive oxide as the connection line material, which is a composite material combining transparency and conductivity properties. This material simultaneously reduces optical interference (by being transparent to optical signals) and maintains sufficient electrical conductivity for reliable pixel electrode connections, resolving the contradiction between optical performance and electrical reliability.
Data Source
AI summary
A display device includes a first pixel, a second pixel, and a third pixel. The first pixel includes a first light emitting element of a first group including a first pixel electrode disposed in a first area, a second light emitting element of the first group including a second pixel electrode electrically connected to the first pixel electrode and disposed in the first area, and a first pixel circuit electrically connected to the first light emitting element of the first group and the second light emitting element of the first group and disposed in the second area.