Under-Screen OLED Panel Layout for Full-Screen Camera Integration
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Solution Overview
Problem
The challenge of achieving a full-screen display effect in OLED devices is addressed by integrating a front camera under the screen without compromising the display function, as existing solutions like notch or drilled screens detract from the appearance and screen-to-body ratio.
Innovation Solution
A display panel design with a first display region for opaque display and a second light-transmitting region for the camera, utilizing separate pixel circuits and conductive lines to drive light-emitting elements, allowing for uniform brightness and resolution across both regions without the need for drilling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a front camera is integrated under the screen, then the screen-to-body ratio is improved and full-screen display effect is achieved, but the display function may be compromised due to light transmittance requirements
Solution Approach 1:
The display panel is divided into a first display region with first pixel circuits and first light-emitting elements, and a second display region with second pixel circuits and second light-emitting elements. This segmentation allows different regions to have different functions: the first region maintains normal display characteristics while the second region optimizes light transmittance for the under-screen camera, thus resolving the contradiction between full-screen effect and display function.
Solution Approach 2:
Different regions of the display panel are given different local characteristics. The second display region corresponding to the camera area has optimized light-emitting elements and conductive line arrangements to maximize light transmittance, while the first display region maintains standard display properties. This local differentiation ensures both full-screen appearance and functional performance.
2Illumination intensity
If separate pixel circuits and conductive lines are used for different regions, then uniform brightness and resolution are improved, but the device complexity increases
Solution Approach 1:
The second pixel circuit is designed to control multiple second light-emitting elements through shared conductive lines. Multiple light-emitting elements in the second display region can be driven by a single pixel circuit, reducing the total number of pixel circuits needed while maintaining uniform brightness control across the camera region.
Solution Approach 2:
The conductive lines in the second display region are designed with multi-functionality, where single conductive lines serve multiple light-emitting elements. This universal approach allows the same conductive line structure to control different groups of light-emitting elements, simplifying the overall circuit architecture while achieving uniform display performance.
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
The solution enables a true full-screen display with improved light transmittance and uniform brightness, enhancing the visual experience by eliminating camera holes and maintaining high screen-to-body ratio.
Implementation Method 1
a plurality of first light-emitting elements, located in the first display region, wherein each of the plurality of first pixel circuits is configured to drive at least one first light-emitting element of the plurality of first light-emitting elements
Data Source
AI summary
A display panel and a display device are provided. The display panel includes: a base substrate, having a first display region and a second display region, the first display region is located at at least one side of the second display region; a plurality of first pixel circuits, located in the first display region; a plurality of first light-emitting elements, located in the first display region to each drive at least one first light-emitting element; a plurality of second pixel circuits, located in the first display region; a plurality of second light-emitting elements, located in the second display region to each drive at least one second light-emitting element; and a plurality of conductive lines, the second pixel circuit is connected to the second light-emitting element through at least one conductive line.