Integrated Touch Control Linear Polarizer for OLED Displays
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Solution Overview
Problem
Current OLED displays require a separate touch screen module, increasing thickness and production costs, as they lack integrated touch control functionality.
Innovation Solution
A linear polarizer with conductive shading stripes integrated into the display panel, functioning as touch control electrodes to detect touch positions, eliminating the need for a separate touch screen and reducing thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate touch screen module is attached to the OLED display, then touch control function is achieved, but the thickness increases and production costs increase
Solution Approach 1:
The patent combines the touch control function with the existing OLED display structure by integrating touch control electrodes into the package film layer. This merging approach eliminates the need for a separate touch screen module while maintaining both display and touch control functionalities within a single integrated structure, thereby reducing overall thickness.
Solution Approach 2:
The package film is designed to serve multiple functions: it acts as both a protective packaging layer and a substrate for touch control electrodes. By making the package film multi-functional, the patent eliminates the need for separate dedicated touch screen components, achieving both display and touch control in one integrated system.
2Adaptability or versatility
If a separate touch screen module is attached to the OLED display, then touch control function is achieved, but production costs increase
Solution Approach 1:
The patent merges the touch control function with the existing OLED manufacturing process by depositing touch control electrodes on the package film during the same production line operations. This integration eliminates the need for separate assembly steps and additional touch screen modules, thereby reducing production costs while achieving touch control functionality.
Solution Approach 2:
The package film serves dual purposes as both a protective layer and a touch control substrate. By making this component multi-functional, the patent reduces the total number of parts needed and simplifies the manufacturing process, leading to lower production costs compared to using separate dedicated touch screen modules.
3Length of stationary object
If low-temperature sputtering is used to deposit touch control electrodes on the package film, then touch control function is achieved with reduced thickness, but the structural complexity increases
Solution Approach 1:
The patent combines the touch control electrode deposition process with the existing OLED packaging process. By using low-temperature sputtering to deposit electrodes directly on the package film during normal production, the patent integrates multiple functions into a single streamlined process, reducing structural complexity despite achieving reduced thickness.
Data Source
AI summary
The present disclosure relates to display technology and discloses a present disclosure and a display device. The linear polarizer includes a base plate and a plurality of shading stripes equally spaced in parallel on the base plate, with a transparent stripe formed between every two shading stripes adjacent to each other, wherein the shading stripes are made of a conductive material; at least a portion of the shading stripes are also configured to detect touch position.