Display Panel With Dummy Sub-Pixels for Camera Light Transmission
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Solution Overview
Problem
Existing display technologies face challenges in integrating an under-display camera without compromising the display quality, particularly in achieving full-screen functionality while maintaining optimal light transmission and image clarity.
Innovation Solution
A display panel design with a light-transmitting region and strategically arranged sub-pixels, including dummy sub-pixels and second light-emitting devices, utilizes data lines connected by transistors to manage signal transmission, ensuring the light-transmitting region can function without interfering with normal display operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a light-transmitting region is created for the under-display camera, then the camera can capture images through the display screen, but the display quality and light transmission uniformity deteriorate
Solution Approach 1:
The patent applies local quality by creating a specific light-transmitting region in the display panel that differs from the surrounding areas. This region is designed with different optical properties to allow camera light transmission while maintaining normal display quality in other areas. The light-transmitting region is strategically positioned and structured to provide localized functionality without compromising overall display performance.
Solution Approach 2:
The display panel is segmented into different functional regions: a light-transmitting region for the under-display camera and a light-emitting region for normal display operations. This segmentation allows each region to be optimized independently - the light-transmitting region for camera functionality and the light-emitting region for display quality, thereby resolving the contradiction between camera access and display performance.
2Area of stationary object
If sub-pixels are arranged in the first region and second region, then full-screen display is achieved, but the complexity of data line routing and signal management increases
Solution Approach 1:
The data lines are designed with multi-functionality to serve both the light-emitting region and the light-transmitting region. The same data line structure is used to transmit signals to sub-pixels in different regions, reducing the need for separate routing systems. This universal approach simplifies the overall data line routing while maintaining full-screen display capability.
Solution Approach 2:
The patent merges the data line routing for sub-pixels in the first region and second region into a unified structure. By combining the signal management systems and using shared data line pathways where possible, the complexity of routing is reduced while still achieving comprehensive coverage across the full display area.
3Ease of operation
If dummy sub-pixels are used in the first region, then signal transmission to the light-transmitting region is enabled, but the manufacturing precision and uniformity of the display deteriorate
Solution Approach 1:
Dummy sub-pixels serve as intermediary elements between the data lines and the light-transmitting region. These dummy sub-pixels facilitate signal transmission and electrical connections without compromising the visual display quality, as they are positioned in regions that do not affect the overall display uniformity. They act as mediators that enable signal routing while maintaining manufacturing precision in the visible display areas.
Data Source
AI summary
A display panel having a light-transmitting region, at least one first region and a second region includes sub-pixels disposed in the at least one first region and the second region, second light-emitting devices disposed in the light-transmitting region, data lines and first transistors. The data lines include first and second data lines. A first data line is electrically connected to pixel driving circuits in a column of sub-pixels including at least one dummy sub-pixel, and a second data line is electrically connected to pixel driving circuits in a column of sub-pixels in the second region and located in a same column as a column of second light-emitting devices. A second light-emitting device in the column of second light-emitting devices is electrically connected to a pixel driving circuit connected to the first data line. The first data line is electrically connected to the second data line through a first transistor.