3D Flat Panel Display With Integrated Barrier And Touch Electrodes
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Solution Overview
Problem
Conventional 3D flat panel displays require separate touch screen and barrier panels, increasing thickness, processing time, and cost, while also suffering from light efficiency degradation due to multiple interfaces.
Innovation Solution
A 3D flat panel display with a built-in capacitive touch screen panel, where first electrode patterns and barrier patterns on the second substrate serve as electrodes, allowing for integrated touch recognition and stereoscopic image display without additional substrates or processes, minimizing optical interfaces and thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate touch screen panel and barrier panel are attached to outer surfaces of flat panel display, then touch recognition and stereoscopic image display functions are achieved, but device thickness increases and light efficiency degrades
Solution Approach 1:
The patent merges the barrier panel and touch screen panel into a single integrated structure where the barrier patterns are formed directly on the front surface of the display panel, and the same electrode patterns serve dual purposes for both stereoscopic display and touch sensing functions
Solution Approach 2:
The electrode patterns are designed to perform multiple functions: they serve as driving electrodes for pixel operation, sensing electrodes for touch detection, and are integrated with the barrier pattern structure for stereoscopic display, thereby eliminating the need for separate dedicated panels
2Adaptability or versatility
If separate touch screen panel and barrier panel are attached to outer surfaces of flat panel display, then touch recognition and stereoscopic image display functions are achieved, but manufacturing complexity and processing time increase
Solution Approach 1:
The patent combines the manufacturing processes by forming barrier patterns and electrode patterns in the same fabrication sequence on the same substrate, eliminating separate attachment steps and reducing overall manufacturing complexity
Solution Approach 2:
The barrier patterns and electrode patterns are formed simultaneously during the same manufacturing process stage, with the electrode patterns being formed on the inner surface of the second substrate before final assembly, thereby simplifying subsequent processing steps
3Adaptability or versatility
If separate touch screen panel and barrier panel are attached to outer surfaces of flat panel display, then touch recognition and stereoscopic image display functions are achieved, but light efficiency degrades due to multiple interfaces
Solution Approach 1:
The patent eliminates multiple optical interfaces by integrating the barrier pattern directly into the display panel structure, reducing the number of air-glass interfaces that cause light reflection and transmission losses
Solution Approach 2:
The patent removes the separate touch screen panel layer that would introduce additional optical interfaces, instead incorporating touch sensing functionality directly into the existing display panel electrode 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
This solution enables a compact, cost-effective 3D flat panel display with improved light efficiency and reduced processing complexity by integrating touch screen and barrier functions within a single panel, enhancing user experience and manufacturing efficiency.
Implementation Method 1
The capacitive touch screen panel converts a contact position into an electrical signal by sensing a change in capacitance formed between a conductive sensing pattern and an adjacent sensing pattern, ground electrode, or the like when a user's hand or object is in contact with the touch screen panel
Implementation Method 2
a parallax of two eyes, i.e., a binocular parallax due to a separation between eyes of a typical human, e.g., about 65 mm, is the most important factor of a 3D effect
Data Source
AI summary
A 3-dimensional (3D) flat panel display with a built-in touch screen panel includes a first substrate, a plurality of pixels on the first substrate, a plurality of first electrode patterns spaced apart from one another at a first predetermined interval along a first direction, the plurality of first electrode patterns for driving the plurality of pixels, a second substrate positioned to face the first substrate, and a plurality of barrier patterns formed on an outer surface of the second substrate and spaced apart from one another at a second predetermined interval along a second direction, intersecting the first direction. At least one of the plurality of first electrode patterns and at least one barrier pattern of the plurality of barrier patterns serve as electrodes for the built-in touch screen panel.