Display Panel Light-Shielding Orientation for Under-Screen Imaging
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Solution Overview
Problem
Existing display panels with under-screen photosensitive elements suffer from poor imaging effects due to increased screen-to-body ratio, leading to imaging loss and reduced quality.
Innovation Solution
The display panel incorporates a base substrate with multiple pixels, including first and second light-emitting devices arranged in optical component areas with specific light-transmitting and light-shielding structures, where the light diffraction directions in these areas are different, allowing for complete image information capture by adjusting the light-shielding and light-transmitting areas' edges and orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the photosensitive element is placed under the display screen to achieve full screen coverage, then the screen-to-body ratio is increased, but the imaging effect deteriorates due to imaging loss
Solution Approach 1:
The display screen is divided into a first display area and a second display area. The first display area corresponds to the first optical component area with first light-shielding areas having a first orientation, while the second display area corresponds to the second optical component area with second light-shielding areas having a second orientation different from the first. This segmentation allows different regions to capture light from different directions, reducing overall imaging loss.
Solution Approach 2:
The light-shielding areas in the first optical component area are configured with a first orientation, while the light-shielding areas in the second optical component area are configured with a second orientation that is different from the first orientation. This asymmetric configuration ensures that light from different directions is captured differently in different regions, preventing systematic imaging loss in any single direction.
2Measurement precision
If light-shielding areas are added to control light transmission, then imaging quality is improved, but device complexity increases
Solution Approach 1:
The light-shielding areas serve multiple functions: they control light transmission to reduce imaging loss, they define the boundaries of light-transmitting areas, and they are integrated into the existing display structure as part of the pixel electrodes or transparent conductive layers. This multi-functionality reduces the need for additional separate components.
Solution Approach 2:
The light-shielding areas are merged with the existing display structure, specifically integrated into the pixel electrodes or transparent conductive layers of the OLED structure. This merging approach allows the light-shielding function to be achieved without adding separate complex structures, thereby reducing overall device complexity while still improving imaging quality.
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 configuration enhances the imaging quality by capturing complete image information, reducing imaging loss and improving the overall shooting performance of the display device.
Implementation Method 1
the light diffraction directions in these areas are different, allowing for complete image information capture by adjusting the light-shielding and light-transmitting areas' edges and orientations
Data Source
AI summary
Provided are a display panel and a display device. The display panel includes an optical component area and a conventional display area. A base substrate includes multiple pixels, and each pixel includes a light-emitting device and a pixel driving circuit which is electrically connected to the light-emitting device. The light-emitting devices includes first light-emitting devices and second light-emitting devices. The conventional display area is provided with the first light-emitting devices; and the optical component area is provided with the second light-emitting devices. The optical component area includes a first optical component area and a second optical component area. The first optical component area includes a first light-transmitting area and multiple first light-shielding areas. The second optical component area includes a second light-transmitting area and multiple second light-shielding areas. The first light-shielding areas do not have an edge parallel to an edge of the second light-shielding areas.