Display Module Light-Shielding Structure for Through-Hole Leakage
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Solution Overview
Problem
Existing display panels with through holes for cameras suffer from light leakage, which affects both human visibility and camera imaging quality due to unshielded light emission from the display region.
Innovation Solution
A display module with a light-shielding structure comprising a light-shielding part and supporting part, integrally formed, is positioned around the through hole's inner wall, with the supporting part fixed to the display panel, ensuring the light-shielding part and layer projections do not overlap with the camera's projection, and partially overlap each other, reflecting light multiple times to prevent leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a through hole is created in the display region to accommodate a camera, then the screen-to-body ratio is improved, but light leakage occurs affecting both human visibility and camera imaging quality
Solution Approach 1:
The light shielding function is segmented into two distinct components: a light-shielding layer positioned in the transition region and a light-shielding part positioned around the through hole inner wall. This segmentation allows each component to address specific aspects of light leakage from different angles and regions, effectively blocking stray light while maintaining the camera opening in the display region.
Solution Approach 2:
The light-shielding layer acts as an intermediary element positioned between the display region and the through hole region. It intercepts and blocks stray light before it can reach the camera or human eyes, while still allowing the camera to function through the through hole. The light-shielding layer serves as a mediator that resolves the conflict between maintaining display functionality and preventing light leakage.
2Object-affected harmful factors
If a light-shielding layer is added in the transition region, then light leakage is reduced, but device complexity increases
Solution Approach 1:
The light-shielding part and supporting part are integrally formed as a single component, reducing the number of separate parts and assembly steps. The integral structure combines the light-shielding function with the supporting function in one piece, simplifying the overall device structure while maintaining effective light blocking capability around the through hole.
Solution Approach 2:
The light-shielding structure serves multiple functions simultaneously: the light-shielding layer blocks light from the display region, the light-shielding part blocks light from the through hole inner wall, and the supporting part provides structural support and positioning. This multi-functionality reduces the need for separate components for each function, thereby reducing overall device complexity.
3Object-affected harmful factors
If the light-shielding part is positioned close to the through hole inner wall, then light blocking effectiveness is improved, but manufacturing precision requirements increase
Solution Approach 1:
The supporting part is designed with predetermined positioning features that enable accurate placement of the light-shielding part around the through hole before final assembly. The integral structure allows the light-shielding part to be pre-positioned relative to the supporting part, ensuring correct alignment with the through hole inner wall without requiring high-precision positioning during final assembly.
Solution Approach 2:
The light-shielding layer is implemented as a thin film structure that can be flexibly positioned and conform to the transition region geometry. This thin film approach allows for easier manufacturing and positioning compared to rigid structures, reducing the precision requirements while maintaining effective light blocking capability.
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 blocks stray light from entering human eyes and interfering with camera imaging, enhancing the screen-to-body ratio and improving camera imaging quality by reflecting light multiple times before it escapes.
Implementation Method 1
an orthographic projection of the light-shielding part on the cover plate and the orthographic projection of the light-shielding layer on the cover plate at least partially overlap, reflecting light multiple times to prevent leakage
Data Source
AI summary
The present invention provides a display module and a fixing method therefor, and a display apparatus. The display module is provided with a light-shielding structure including a light-shielding part and a supporting part that are integrally formed, wherein the light-shielding part is arranged around the inner wall of a through hole; the supporting part is fixed to a side of a display panel away from a cover plate; and an orthographic projection of the light-shielding part on the cover plate and an orthographic projection of a light-shielding layer on the cover plate at least partially overlap, such that a transition area is surrounded by the light-shielding layer and the light-shielding part in a through hole area.