Autostereoscopic Display with Integrated Barrier and Electrode Patterns
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Solution Overview
Problem
Conventional stereoscopic image display apparatuses with touch panels require separate components, increasing fabrication costs, time, and thickness, while failing to efficiently integrate stereoscopic image realization and touch event detection.
Innovation Solution
A display apparatus incorporating barrier patterns and electrode patterns on a single substrate, where the barrier patterns are insulated from the electrode patterns and configured to transmit different images to each eye for stereoscopic viewing and detect external touch events by measuring voltage changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate touch panel and display panel components are used, then touch event detection and stereoscopic image display functions are achieved, but fabrication cost, fabrication time, and device thickness increase
Solution Approach 1:
The patent combines the display panel and touch panel into a single integrated structure. The barrier patterns are formed on the same substrate as the pixel electrodes, creating a unified component that performs both stereoscopic image display and touch event detection functions, thereby reducing the number of separate components and associated fabrication steps
Solution Approach 2:
The barrier patterns serve dual functions: they act as optical barriers to enable stereoscopic image display by directing light to specific eyes, and simultaneously function as touch sensing elements that detect voltage changes when touched. This multi-functionality eliminates the need for separate dedicated touch panel components
2Reliability
If separate touch panel and display panel components are used, then touch event detection and stereoscopic image display functions are achieved, but device thickness increases
Solution Approach 1:
The display and touch functions are merged into a single thin substrate structure, eliminating the need for stacking separate thick components. The integrated design maintains both functional layers within a reduced overall thickness profile
3Reliability
If separate touch panel and display panel components are used, then touch event detection and stereoscopic image display functions are achieved, but fabrication cost and fabrication time increase
Solution Approach 1:
The patent integrates both display and touch panel fabrication processes into a single manufacturing sequence. The barrier patterns and pixel electrodes are formed on the same substrate using coordinated patterning steps, eliminating the need for separate fabrication of distinct components and subsequent assembly operations
Solution Approach 2:
The barrier patterns are formed in advance during the display panel fabrication process itself, before final assembly. This preliminary integration of touch sensing structures into the display manufacturing flow eliminates later assembly steps and reduces overall fabrication time and cost
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
Enables the realization of stereoscopic images and detection of touch events without the need for a separate touch panel, reducing fabrication costs and thickness, and integrating both functions within a single display panel.
Implementation Method 1
each pixel including a gate line extending along a third direction, a data line extending along a fourth direction, and a pixel electrode electrically connected to the gate line and the data line, the pixel electrode being configured to generate an electric field with a corresponding electrode pattern of the plurality of electrode patterns to display an image
Implementation Method 2
The capacitive sensing touch panel may be configured to measure a change in capacitance caused by touching the surface of the touch panel
Data Source
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AI summary
An autostereoscopic touch-sensing display apparatus (100) includes a first substrate (110) opposite a second substrate (120), a plurality of electrode patterns (EP) in the second substrate, the plurality of electrode patterns extending along a first direction (D1), a plurality of optical barrier patterns (BP) in the second substrate, the plurality of optical barrier patterns being insulated from the electrode patterns and extending along a second direction (D2) crossing the first direction, and a plurality of pixels, the first and second substrates with the pixels defining a display panel, and each pixel including a gate line (GL) extending along one of said first and second directions, a data line (DL) extending along the other one of said first and second directions, and a pixel electrode (PE) electrically connected to the gate line and the data line, the pixel electrode being configured to generate an electric field with a corresponding electrode pattern of the plurality of electrode patterns to display an image.