Mobile Display Non-Apertured Polarizing Layer
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Solution Overview
Problem
Conventional mobile displays suffer from uneven screen surfaces due to slotting the polarizing film, leading to height differences that result in an unpleasing appearance and uncomfortable finger touch.
Innovation Solution
A mobile display design featuring a non-apertured polarizing layer that covers openings corresponding to image, infrared, and LED modules, with an anti-glare layer not covering the image module region, along with an optical stack including anti-reflection and anti-smudge layers, ensuring high transmittance and pen hardness, addressing the unevenness and enhancing touch comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the polarizing film is slotted in the region I at the front of the mobile display to prevent adhesion degradation, then the camera lens module, infrared module, and LED module functions are protected, but height difference occurs around the slot leading to uneven screen surface
Solution Approach 1:
The patent extracts the polarizing film from the front surface and relocates it to the rear side of the display structure. Specifically, the polarizing film is positioned behind the color filter substrate, allowing the front surface to remain continuous and flat while still providing the necessary polarization function. This extraction resolves the contradiction by removing the source of height difference from the visible surface.
Solution Approach 2:
The patent changes the spatial dimension where the polarizing film is positioned - moving it from the front surface (2D plane) to the rear side (different spatial location). This dimensional relocation allows the polarizing function to be maintained while the front surface maintains uniformity, effectively resolving the height difference issue.
2Reliability
If the polarizing film is slotted to protect module functions, then adhesion degradation is prevented, but finger touch comfort deteriorates due to unevenness
Solution Approach 1:
By extracting the polarizing film from the front surface and positioning it at the rear, the patent eliminates the physical obstruction that causes uneven finger touch. The front surface becomes continuous and flat, restoring touch comfort while the rear-positioned polarizing film continues to provide adhesion protection.
3Object-affected harmful factors
If the anti-glare layer covers the entire surface including the image module region, then glare protection is improved, but light transmittance to the image module deteriorates
Solution Approach 1:
The patent applies local quality by making the anti-glare layer's coverage non-uniform - it covers most of the display surface for glare protection but deliberately excludes the image module region. This localized differentiation allows simultaneous optimization of glare protection and light transmittance in different areas.
Solution Approach 2:
The anti-glare layer is segmented into different coverage zones: one zone covering the general display area for glare reduction, and another zone (the image module region) left uncovered to maintain light transmittance. This segmentation resolves the contradiction by allowing different optical properties in different regions.
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 provides a smooth, comfortable finger touch experience and a more pleasing appearance by eliminating height differences on the screen surface while maintaining high transmittance and durability.
Implementation Method 1
a non-apertured polarizing layer; wherein the non-apertured polarizing layer covers the openings
Implementation Method 2
an optical stack that is located on an upper surface of the first substrate and has an anti-glare layer
Implementation Method 3
an optical stack that is located on an upper surface of the first substrate and has an anti-glare layer and a non-apertured polarizing layer
Implementation Method 4
a second substrate, having an upper surface in contact with the display stack, and having a lower surface provided with a plurality of infrared ink structures
Data Source
AI summary
A mobile display includes: a first substrate, having an optical stack that is located on an upper surface of the first substrate and has an anti-glare layer and a non-apertured polarizing layer; a display stack, having a color filtering layer and a liquid crystal layer, wherein the display stack is located on a lower surface of the first substrate, and the color filtering layer has a plurality of openings; and a second substrate, having an upper surface in contact with the display stack, and having a lower surface that is provided with a plurality of infrared ink structures; wherein the openings correspond to an image module, an infrared module, an LED module, and an ambient light sensor, respectively, and the non-apertured polarizing layer covers the openings while the anti-glare layer does not cover a region in which the opening corresponding to the image module is located.