Patterned Polarization Plate for Under-Display Module Sensitivity
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Solution Overview
Problem
Display devices with electronic modules suffer from performance degradation due to the polarization layer overlapping the electronic module, which affects the module's sensitivity and display quality.
Innovation Solution
A patterned polarization layer is implemented, with a polarizer layer including a polymer film and light absorbers, where the non-polarization part has higher light transmittance than the polarization part, and is strategically positioned to overlap the electronic module, reducing light absorption and enhancing transmittance in the display region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a polarization layer is disposed on the electronic module to improve display quality, then display quality is improved, but the performance and sensitivity of the electronic module degrade
Solution Approach 1:
The polarization layer is divided into a first polarization region and a second polarization region, with the second region further segmented into polarization parts and non-polarization parts. This segmentation allows different regions to serve different functions: the first region maintains polarization for display quality, while the second region's non-polarization parts provide high transmittance for electronic module performance.
Solution Approach 2:
Different regions of the polarization layer are assigned different optical properties. The polarization parts maintain light-absorbing characteristics for polarization function, while the non-polarization parts are designed with higher light transmittance to minimize interference with the electronic module. This local differentiation resolves the contradiction between display quality and module performance.
2Illumination intensity
If a polarization layer is disposed on the electronic module to maintain display quality, then display quality is maintained, but the sensitivity of the electronic module is reduced
Solution Approach 1:
The polarization layer is segmented into regions with different optical densities. The non-polarization parts in the second polarization region have reduced light absorption, allowing signals from the electronic module to pass through with minimal attenuation, thereby preserving sensitivity while maintaining display quality in other regions.
Solution Approach 2:
The polarization layer exhibits spatially varying optical properties, with non-polarization parts having higher transmittance specifically positioned over the electronic module. This local quality adjustment ensures that sensitivity measurement is not degraded while display quality is maintained in the polarization regions.
3Reliability
If the non-polarization part has higher light transmittance to improve electronic module performance, then electronic module performance improves, but the polarization function in that region is reduced
Solution Approach 1:
The polarization layer is segmented into multiple functional regions: first polarization region for primary polarization function, and second polarization region with mixed polarization and non-polarization parts. This segmentation confines the polarization function loss to specific non-polarization parts while maintaining overall polarization capability in other regions.
Solution Approach 2:
The polarization layer is designed with spatially differentiated properties where non-polarization parts with higher transmittance are localized to specific areas over the electronic module. The polarization parts in the same region and the entire first polarization region maintain full polarization function, thus localizing the harm while preserving overall system functionality.
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 patterned polarization layer improves the performance of the electronic module and display quality by increasing transmittance in the overlapping region, thereby enhancing sensitivity without degrading image quality.
Implementation Method 1
a polarizer layer as an uppermost layer, and the polarizer layer may include a polymer film and a light absorber dispersed in the polymer film
Implementation Method 2
A number of the light absorber per unit area in the non-polarization part may be smaller than a number of the light absorber per unit area in the first polarization region and the polarization part
Data Source
AI summary
An electronic apparatus includes: an electronic module; a display panel disposed on the electronic module and including a first display region and a second display region adjacent to the first display region, the second display region overlapping the electronic module; and a polarization plate disposed on the display panel and including a first polarization region overlapping the first display region and a second polarization region including a polarization part and a non-polarization part having higher light transmittance than the polarization part, the non-polarization part overlapping the second display region.