Display Panel Through-Hole Light Shielding for Camera Leakage
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Solution Overview
Problem
The issue of light leakage from the notched active area of a display device affects both the photosensitive property of the camera module and the display performance, particularly when a front-facing camera is integrated into the display screen, leading to decreased functionality.
Innovation Solution
A light-shielding portion and/or light-interfering layer are arranged around the through hole to reflect or absorb light, changing its travel path and preventing leakage, thereby enhancing the photosensitive property of the camera module and improving display performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the active area is notched to increase screen-to-body ratio, then the screen-to-body ratio is improved, but light leakage from the organic light-emitting layer occurs affecting camera and display performance
Solution Approach 1:
A light-shielding portion is introduced as an intermediary element between the active area and the through hole. This light-shielding portion is disposed on the cover plate in the frame area surrounding the through hole, acting as a mediator to block and redirect light paths that would otherwise leak into the camera module, thereby resolving the light leakage issue while preserving the notched design for high screen-to-body ratio
Solution Approach 2:
The light-shielding portion is strategically positioned only in specific locations - on the cover plate in the frame area surrounding the through hole, not across the entire display. This localized application of light-shielding properties allows the solution to address light leakage in the critical region near the camera while maintaining display quality and brightness in the active display areas
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 effectively reduces light leakage from the through hole, improving the photosensitive property of the camera module and the display performance of the display panel.
Implementation Method 1
the light from the active area is reflected or absorbed by the light-shielding portion, thereby changing the travel path of the light
Implementation Method 2
the light from the active area is reflected or absorbed by the light-shielding portion, thereby changing the travel path of the light
Data Source
Figure 1
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AI summary
A display device, including a display panel (100) and a cover plate (200) covering the display panel (100). The display panel (100) is provided with a through hole (110) extending through the display panel in a thickness direction thereof. The display panel (100) includes a frame area (130) and an active area (120). The frame area (130) surrounds the through hole (110). The active area (120) surrounds the frame area (130). The cover plate (200) includes a first region (210), a second region (220), and a third region (230). The first region (210) covers the active area (120). The second region (220) covers the frame area (130). A surface of the second region (220) adjacent to the display panel (100) is provided with a light-shielding portion (221) thereon. The third region (230) covers the through hole (110).