Display Panel Pixel Layout for Under-Display Light Transmittance
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Solution Overview
Problem
Modern electronic devices face challenges in optimizing light transmittance across different areas of a display panel to accommodate electronic modules like cameras and sensors without enlarging the device's non-display area, leading to uneven light transmission.
Innovation Solution
The display module incorporates a structured design with specific pixel defining patterns, anti-reflection layers, and color filters to manage light transmittance, including a ring-shaped pixel defining pattern and division layers, which enhance light transmission in certain areas while maintaining image quality and reducing reflections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If electronic modules are disposed below the display panel to avoid enlarging the non-display area, then the device size is maintained, but light transmittance becomes uneven across different areas of the display panel
Solution Approach 1:
The patent applies local quality by configuring different pixel structures in different areas of the display panel. Specifically, pixels in the first area (overlapping electronic modules) have different configurations than pixels in the second area (non-overlapping), with variations in pixel electrode size, pixel defining pattern dimensions, and color filter transparency to optimize light transmittance locally where electronic modules are present while maintaining normal display quality in other areas
Solution Approach 2:
The patent segments the display panel into multiple areas (first area overlapping electronic modules, second area not overlapping) and applies different pixel configurations to each segment. This segmentation allows independent optimization of light transmittance in the first area while maintaining standard display performance in the second area, resolving the contradiction between device size and uniform light transmittance
2Illumination intensity
If light transmittance is increased in the first area to accommodate electronic modules, then electronic module functionality is improved, but image quality in that area deteriorates
Solution Approach 1:
The patent implements local quality by creating area-specific pixel configurations where the first area (overlapping electronic modules) has enhanced light transmittance properties through larger pixel electrodes, adjusted pixel defining patterns, and modified color filters, while the second area maintains standard high-quality display characteristics. This localized differentiation allows simultaneous optimization of both light transmittance and image quality in their respective areas
Solution Approach 2:
The display panel is segmented into functionally distinct regions with different pixel structures. The segmentation enables the first area to be optimized for light transmittance to support electronic modules while the second area is optimized for display quality, thereby resolving the contradiction between improving electronic module functionality and maintaining image quality through spatial separation of functional requirements
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 transmittance in critical areas, supports the integration of electronic modules without enlarging the device, and enhances image quality and signal quality from electronic modules.
Implementation Method 1
an anti-reflection layer disposed on the display panel and including a first color filter overlapping the first pixel electrode
Data Source
AI summary
An electronic device includes a display panel having a first area, a second area, and a third area. The display panel includes a first pixel including a first light emitting element disposed in the first area and a first pixel circuit disposed ion the second area and configured to drive the first light emitting element. A second pixel is disposed in the second area. A third pixel disposed in the third area. A pixel defining pattern is disposed on the first pixel electrode and has a ring shape when viewed in a plane (e.g., in a plan view).