Display Module Through-Hole Shielding for Optical Capture
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Solution Overview
Problem
Display modules with optical information collection functions, such as cameras, experience significant interference due to light leakage during image capture, limiting their application.
Innovation Solution
A display module design incorporating a hole region, display region, and non-display region with a through hole and light shielding layer, ensuring the sum of the non-display portion and light shielding layer thickness matches the combined thickness of the functional layer and display panel in the display region, thereby preventing light scattering and reducing corrosion risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a through hole is provided in the functional layer and display panel for optical information collection, then the camera function is enabled, but light leakage occurs causing interference to image capture
Solution Approach 1:
A light shielding layer is introduced as an intermediary element in the non-display region to block light from reaching the hole region. This mediator prevents the harmful light leakage effect while maintaining the optical information collection function through the through hole in the functional layer and display panel.
2Length of moving object
If the display module thickness is reduced, then the overall device becomes thinner, but gaps between film layers may occur allowing water and oxygen ingress
Solution Approach 1:
The patent employs thin film structures including the light shielding layer and encapsulation layers that provide effective protection against water and oxygen ingress while maintaining a reduced overall thickness. These thin film barriers prevent corrosion of the functional layer and display panel without requiring excessive thickness.
3Shape
If the sum of non-display portion and light shielding layer thickness matches the functional layer and display panel thickness, then the structure is optimized, but manufacturing precision requirements increase
Solution Approach 1:
The patent specifies that the sum of the thickness of the non-display portion and the light shielding layer equals the sum of the thickness of the functional layer and the display panel in the display region. This parameter relationship optimizes the overall structure while managing manufacturing precision requirements through defined thickness relationships.
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, enhances optical information collection quality, and prolongs the display module's lifespan by preventing water and oxygen ingress.
Implementation Method 1
the light shielding layer can play a role of shielding light, preventing the light emitted from the display panel from scattering from the display module corresponding to the hole region
Data Source
AI summary
A display module includes a functional layer and a display panel. The display module is provided with a hole region, a display region and a non-display region between the hole region and the display region. A through hole is provided at a portion of the functional layer and the display panel corresponding to the hole region. The display module includes a light shielding layer and a non-display portion located in the non-display region. In a thickness direction of the display module, the sum of the thickness of the non-display portion and the thickness of the light shielding layer is the same as the sum of the thickness of the functional layer in the display region and the thickness of the display panel in the display region.