Display Pixel Layout for High-Transmittance Optical Sensing
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Solution Overview
Problem
Existing display devices face challenges in reducing optical signal distortion and simplifying wiring design, particularly in areas with higher transmittance for optical signals, which affect the functionality of electronic modules like cameras and sensors.
Innovation Solution
A display device design with specific pixel configurations and connection lines, including transparent conductive oxides, curved pixel electrodes, and insulating layers to minimize signal distortion and prevent short circuits, while allowing for higher transmittance in certain areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If connection lines are disposed in the same layer as pixel electrodes to simplify wiring, then device complexity is reduced, but short circuits between crossing connection lines occur
Solution Approach 1:
The patent resolves the contradiction by transitioning from two-dimensional planar wiring to three-dimensional stacked wiring. Connection lines are disposed in different layers (first connection line in first layer, second connection line in second layer), allowing them to cross without short circuiting while maintaining simplified wiring design. This vertical separation in the thickness direction enables independent routing of multiple connection lines without interference.
2Illumination intensity
If transmittance is increased in certain areas to improve optical signal transmission, then electronic module functionality is enhanced, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies local quality by configuring pixel electrodes with different shapes and sizes in different areas of the display device. In areas requiring high transmittance for optical signal transmission, pixel electrodes are designed with smaller areas or different geometries to minimize obstruction. This localized optimization allows high transmittance in specific regions while maintaining normal pixel performance in other areas, without imposing uniform manufacturing precision requirements across the entire device.
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.