OLED Touch Display Laminated Package Integration
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Solution Overview
Problem
Conventional OLED displays with touch sensor modules suffer from increased volume and weight due to the addition of optical films and touch sensor components, making them unsuitable for thin and lightweight electronic devices, and face visibility issues in bright environments due to light reflection.
Innovation Solution
An OLED touch display device with a laminated package component that includes a quarter-wave plate, a liquid crystal polarizer, and a single-layer touch sensor unit, which are integrated to reduce thickness and weight, and effectively absorb incident light using a liquid crystal polarizer and quarter-wave plate combination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional touch sensor module is provided on the optical film unit, then touch sense function is provided, but volume and weight of the OLED display would be severely increased
Solution Approach 1:
The patent merges the touch sensor unit with the optical film unit into a single integrated structure. The touch sensor unit is formed directly on the optical film unit, eliminating the need for a separate touch sensor module. This integration reduces the overall volume and weight while maintaining both the optical anti-reflective function and touch sensing function.
Solution Approach 2:
The optical film unit serves multiple functions: it provides optical anti-reflective properties through the quarter-wave plate and polarizer, and simultaneously serves as the substrate for the touch sensor unit. This multi-functionality reduces the number of separate components needed, thereby reducing overall weight and volume.
2Ease of operation
If a conventional touch sensor module is provided on the optical film unit, then touch sense function is provided, but volume of the OLED display would be severely increased
Solution Approach 1:
The touch sensor unit is merged with the optical film unit into a single integrated component. The touch sensor unit is formed directly on the optical film unit, eliminating the need for a separate touch sensor module and reducing overall volume.
Solution Approach 2:
The touch sensor unit is nested within the optical film unit structure. The touch sensor unit is formed on top of the optical film unit, creating a nested configuration where one component is embedded within another, reducing overall volume.
3Object-affected harmful factors
If a quarter-wave plate and polarizer are disposed on the transparent cover plate, then light reflection is absorbed, but thickness and weight are increased
Solution Approach 1:
The quarter-wave plate and polarizer are merged into a single optical film unit with a integrated structure. This integration reduces the total thickness compared to having separate layers, while maintaining the light reflection absorption function.
Solution Approach 2:
The patent uses thin film structures for the quarter-wave plate and polarizer layers. These thin films provide the necessary optical anti-reflective properties while minimizing the addition of thickness to the overall display structure.
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 an OLED touch display device with reduced thickness and weight, enhanced visibility by minimizing light reflection, and maintains the display, touch sensing, and optical anti-reflective functions while protecting the organic light emitting module from moisture and oxidation.
Implementation Method 1
a quarter-wave plate, a liquid crystal polarizer and a touch sensor unit, which are integrated to reduce thickness and weight, and effectively absorb incident light using a liquid crystal polarizer and quarter-wave plate combination
Data Source
AI summary
An OLED touch display device includes an OLED display and a laminated package component. The laminated package component covers the OLED display and includes a quarter-wave plate, a liquid crystal polarizer and a touch sensor unit. The touch sensor unit is a single-layer electrode structure.