Display Panel Pixel Circuit Layout for Reduced Light Diffraction
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Solution Overview
Problem
Traditional display panels suffer from a significant diffraction effect on transmitted light, which affects the light collection efficiency of integrated photosensitive components, hindering full-screen display capabilities.
Innovation Solution
The display panel redesigns the arrangement of pixel circuits in a tilted manner, with adjacent pixel circuits clustered together, reducing diffraction and increasing the light-transmitting area by minimizing the shielding effect of pixel circuits and sub-pixels, and optimizing signal line orientations to further reduce light diffraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If pixel circuits are arranged in a traditional grid pattern aligned with the display pixel directions, then the layout is simple and easy to manufacture, but the diffraction effect on transmitted light is significant, affecting photosensitive component performance
Solution Approach 1:
The patent applies asymmetry by tilting the pixel circuit arrangement direction at a specific angle (e.g., 30 degrees) relative to the display pixel directions. This asymmetric arrangement breaks the regular grid pattern that causes constructive interference and diffraction, thereby reducing the diffraction effect on transmitted light while maintaining manufacturing feasibility through standardized tilted layout processes
2Adaptability or versatility
If pixel circuits are arranged to cover larger area for compact integration, then the device integration is improved, but the light-transmitting area is reduced, affecting full-screen display capability
Solution Approach 1:
The patent transitions from a two-dimensional grid arrangement to a tilted arrangement that effectively utilizes the angular dimension. By arranging pixel circuits at a tilt angle, the projection of pixel circuits onto the light transmission path is reduced, allowing larger light-transmitting area while maintaining compact integration density through optimized spatial distribution
3Illumination intensity
If pixel circuits are arranged with larger spacing to reduce shielding effect, then light transmittance is improved, but the area occupied by pixel circuits increases, reducing display area
Solution Approach 1:
The tilted asymmetric arrangement reduces the projected shadow area of pixel circuits in the light transmission direction. By orienting pixel circuits at an angle, their effective shielding cross-section is minimized, allowing higher light transmittance while maintaining compact spacing between circuits, thus increasing both display area and light transmission efficiency
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 enhances light transmittance and improves light sensing capabilities, enabling full-screen and uniform display while integrating photosensitive components under the screen.
Implementation Method 1
the arrangement direction of the pixel circuits in the arrangement unit comprises a first tilted direction being tilted with respect to both of the first direction and the second direction... so that the diffraction of light by the display panel is reduced
Data Source
AI summary
A display panel includes: a substrate; a plurality of pixel units arranged on the substrate in an array along a first direction and a second direction intersecting each other, each of the pixel units includes N sub-pixels; and a plurality of pixel circuit units arranged on the substrate, each of the pixel circuit units includes N pixel circuits, each of the pixel circuits is electrically connected to a corresponding one of the sub-pixels, each of the pixel circuit units is provided with at least one arrangement unit, and in the arrangement unit, M pixel circuits are arranged adjacently in sequence, an arrangement direction of the pixel circuits in the arrangement unit includes a first tilted direction which is tilted with respect to both of the first direction and the second direction.