Display Panel Pixel Layout for High-Transmittance Sensing Areas
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Solution Overview
Problem
Existing display technologies face challenges in achieving both full-screen display and front-facing photosensitive functions, particularly in areas requiring high light transmittance, leading to poor display effects due to reduced pixel density and pixel circuit compression.
Innovation Solution
A display panel design with separate first and second display areas, where the first area has higher light transmittance and no pixel circuits, and the second area has pixel circuits in a one-to-one correspondence with light-emitting elements, maintaining the same distribution density and pixel density across both areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If pixel density is reduced in the photosensitive function area to meet light transmittance requirements, then light transmittance is improved, but display effect deteriorates
Solution Approach 1:
The display area is segmented into a first display area (photosensitive function area) and a second display area (non-photosensitive area). The first pixel circuits are disposed outside the first display area in the second display area, while the second pixel circuits are disposed in the first display area. This spatial segmentation allows the first display area to have high light transmittance without pixel circuits, while maintaining display functionality through the second pixel circuits that correspond to the first light-emitting elements.
Solution Approach 2:
The patent extends the display area into multiple dimensions by creating overlapping regions where light-emitting elements in the first display area can correspond to pixel circuits in both the first and second display areas. This multi-dimensional arrangement allows light to pass through the first display area while enabling display functions through pixel circuits positioned in different spatial locations.
2Illumination intensity
If pixel circuits are externally disposed in a transition area around the photosensitive function area, then light transmittance in the photosensitive area is improved, but device complexity increases
Solution Approach 1:
The patent merges the functions of multiple pixel circuits into a coordinated system where first pixel circuits and second pixel circuits work together to control the same light-emitting elements. The first pixel circuits are disposed in the second display area while the second pixel circuits are disposed in the first display area, creating an integrated control system that manages light emission across both display areas without requiring separate independent control systems.
Solution Approach 2:
The light-emitting elements in the first display area serve multiple functions: they can be controlled by first pixel circuits for display purposes and by second pixel circuits for photosensitive functions. This multi-functionality allows the same physical structure to support both display and light transmission requirements, reducing the need for separate dedicated components for each function.
Data Source
AI summary
Provided are a display panel and a display device. The display panel includes a first display area and a second display area. Light transmittance in the first display area is larger than light transmittance in the second display area. The first display area includes multiple first light-emitting elements. The second display area includes multiple second light-emitting elements. The multiple first light-emitting elements and the multiple second light-emitting elements have the same distribution density. The second display area includes multiple first pixel circuits and multiple second pixel circuits. The multiple first pixel circuits are in a one-to-one correspondence electrically connected to the multiple first light-emitting elements. The multiple second pixel circuits are in a one-to-one correspondence electrically connected to the multiple second light-emitting elements.