Display Panel Circuit Separation for Under-Screen Camera Transmittance
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Solution Overview
Problem
Existing display panels with under-screen cameras suffer from poor light transmittance in the camera region due to the presence of pixel circuits, leading to suboptimal display effects.
Innovation Solution
The display panel design separates pixel circuits from light-emitting elements in different regions, with pixel circuits in one region driving light-emitting elements in another region through transparent conductive lines, ensuring no overlap and enhancing light transmittance in the camera region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If pixel circuits are integrated with light-emitting elements in the same region, then device complexity is reduced and manufacturing is simplified, but light transmittance in the camera region deteriorates due to overlap
Solution Approach 1:
The display panel is divided into a first display region and a second display region. The first pixel circuits are integrated with light-emitting elements in the first display region, while the second pixel circuits are separated and placed in the second display region, which serves as a light-transmitting camera region. This spatial segmentation allows the camera region to have high light transmittance while other regions maintain integrated structures for manufacturing simplicity.
2Illumination intensity
If pixel circuits are separated from light-emitting elements to improve light transmittance, then light transmittance in the camera region is improved, but device complexity increases
Solution Approach 1:
The display panel is divided into a first display region and a second display region. The first pixel circuits are integrated with light-emitting elements in the first display region, while the second pixel circuits are separated and placed in the second display region, which serves as a light-transmitting camera region. This spatial segmentation allows the camera region to have high light transmittance while other regions maintain integrated structures for manufacturing simplicity.
Solution Approach 2:
The second pixel circuits are designed to be able to drive light-emitting elements in both the first display region and the second display region. This multi-functionality reduces the need for separate dedicated circuits for each region, thereby managing device complexity while enabling the separated structure that improves light transmittance.
3Area of stationary object
If pixel circuits are placed in the camera region, then screen-to-body ratio is increased, but display quality deteriorates due to poor light transmittance
Solution Approach 1:
The display panel is divided into a first display region and a second display region. The first pixel circuits are integrated with light-emitting elements in the first display region, while the second pixel circuits are separated and placed in the second display region, which serves as a light-transmitting camera region. This spatial segmentation allows the camera region to have high light transmittance while other regions maintain integrated structures for manufacturing simplicity.
Data Source
AI summary
Provided are a display panel and a display device. The display panel includes: a pixel unit including a pixel circuit and a light-emitting element; a data line connected with the pixel circuit, the data line includes first-type data lines and second-type data lines, the second-type data line includes a first portion, a second portion, and a third portion, the third portion is connected with the first portion through a first via hole, the third portion is connected with the second portion through a second via hole, and the third portion includes a main trace located between the first via hole and the second via hole, at least one third portion includes a compensation trace, the compensation trace of the third portion is located at least one end of the main trace of the third portion, lengths of the plurality of third portions are equal or approximately equal.