Display Device Optical Unit Integration for Photoelectric Transducers
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Solution Overview
Problem
In the design of small-size portable electronic terminals, the limited space for supporting elements such as image-capturing and sensor components overlaps with the display region, necessitating innovative solutions to integrate these elements without compromising display visibility and designability.
Innovation Solution
A display device structure incorporating an array substrate, a liquid crystal layer, a counter substrate, a first resin film with a opening, a wavelength plate, and a linear polarizing plate, where the resin film is positioned between the array substrate and the polarizing plate, allowing for the integration of optical units that overlap with the display region to accommodate photoelectric transducers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a light-transmitting region is formed in the display region to arrange photoelectric transducers, then the display region area is increased and frame region is reduced, but the structural complexity increases due to additional optical components
Solution Approach 1:
The patent combines multiple optical components (resin film, wavelength plate, polarizing plate) into a single integrated optical unit that is fixed to the array substrate. This merging approach allows the light-transmitting region to function effectively while reducing the number of separate components and simplifying the overall structure compared to having separate components for each function.
Solution Approach 2:
The optical unit serves multiple functions simultaneously: the resin film provides structural support and positioning, the wavelength plate controls polarization, and the polarizing plate filters light. This multi-functionality allows a single integrated component to replace what would otherwise require multiple separate elements, thereby increasing display region area without proportionally increasing structural complexity.
2Adaptability or versatility
If optical components are arranged in the display region, then photoelectric transducers can be integrated, but manufacturing complexity increases due to precise alignment requirements
Solution Approach 1:
The optical unit is pre-assembled with the resin film, wavelength plate, and polarizing plate positioned in correct alignment before being fixed to the array substrate. This preliminary assembly ensures that all optical components are properly aligned prior to final installation, significantly reducing manufacturing complexity and avoiding the need for complex alignment procedures during assembly.
Solution Approach 2:
The resin film acts as an intermediary component that provides a stable mounting structure for the wavelength plate and polarizing plate. This intermediary layer simplifies the manufacturing process by providing a standardized interface for attaching optical components to the array substrate, ensuring consistent positioning and alignment without requiring complex adjustment mechanisms.
3Illumination intensity
If the resin film is positioned between the array substrate and polarizing plate, then light transmissivity is controlled effectively, but the number of layers increases
Solution Approach 1:
The resin film, wavelength plate, and polarizing plate are merged into a single optical unit that functions as one integrated layer system. Although multiple materials are involved, they are positioned and fixed together as a unified component, effectively controlling light transmissivity without proportionally increasing the number of separate layers in the final assembly.
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
This configuration enables a high-quality display with increased display region area, allowing for the integration of photoelectric transducers within the display region, reducing the frame region, and maintaining excellent designability and image quality by controlling light transmissivity and avoiding distortions.
Implementation Method 1
a first linear polarizing plate located under and overlapping with the first resin film and the first wavelength plate
Implementation Method 2
a first wavelength plate in the first opening
Data Source
AI summary
Disclosed is a display device including an array substrate, a liquid crystal layer over the array substrate, a counter substrate over the liquid crystal layer, a first resin film located under the array substrate and having a first opening overlapping with the liquid crystal layer, a first wavelength plate in the first opening, and a first linear polarizing plate located under and overlapping with the first resin film and the first wavelength plate. The first resin film may be in contact with or spaced apart from the first wavelength plate.