Display Panel Pixel Layout for High-Transmittance Photosensitive Areas
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Solution Overview
Problem
Existing display panels with integrated photosensitive components face challenges in maintaining high light transmission in the light-transmitting display area due to pixel circuits that adversely affect light transmission, degrading the performance of the display panel.
Innovation Solution
The display panel is designed with a first display area having higher light transmittance than a second area, and the pixel circuits' driving elements are dispersedly distributed to prevent light shielding, with the electrode layer covering the driving elements' projections on the substrate, enhancing light transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pixel circuits are integrated on the display panel to enable photosensitive components, then the functionality of the display panel is improved, but the light transmission of the light-transmitting display area is reduced
Solution Approach 1:
The pixel circuit is divided into multiple driving elements (first driving element, second driving element, third driving element) that are spatially separated and dispersedly arranged in different sub-pixel regions. This segmentation allows each driving element to control specific sub-pixels while minimizing light shielding in the light-transmitting display area, thus resolving the contradiction between functionality and light transmission.
Solution Approach 2:
Different regions of the display panel are assigned different functions: the first display area is optimized for light transmission (light-transmitting display area) while the second display area is optimized for display function. The driving elements are locally arranged in the light-transmitting area with dispersed distribution to minimize their impact on light transmission while still providing necessary driving functionality.
2Device complexity
If driving elements are concentrated in a small area, then the device complexity is reduced, but the light-shielding area increases and light transmission decreases
Solution Approach 1:
The pixel circuit is segmented into multiple driving elements that are dispersedly arranged across different sub-pixel regions rather than concentrated in one location. This segmentation increases the spatial distribution of circuit elements, reducing light shielding in any single area while maintaining the necessary driving functionality through coordinated operation of the dispersed elements.
Solution Approach 2:
The driving elements are arranged in a two-dimensional dispersed pattern across the light-transmitting display area rather than being concentrated in a one-dimensional or point location. This dimensional distribution optimizes both light transmission (by spreading out obstructions) and circuit functionality (by providing sufficient driving capacity across the area).
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design improves light transmission in the first display area, ensuring normal operation of photosensitive components and achieving a full-screen display with increased screen-to-body ratio.
Implementation Method 1
an orthographic projection of the first electrode layer on the substrate covering an orthographic projection of the driving element on the substrate
Data Source
AI summary
A display panel and a display apparatus. The display panel includes: a base plate including a substrate and first pixel circuits, each of the first pixel circuits including two or more driving elements; and a light-emitting device layer arranged on the base plate and including first sub-pixels, each of the first sub-pixels including a first electrode layer, a first light-emitting layer, and a second electrode layer; at least part of the first pixel circuits being configured to drive two or more of the first sub-pixels, the two or more driving elements of the first pixel circuit being dispersedly distributed in an area covered by at least part of the first sub-pixels driven by the first pixel circuit, and an orthographic projection of the first electrode layer on the substrate covering an orthographic projection of the driving element on the substrate.