Array Substrate with Segmented Touch Pixels for Display Area
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Solution Overview
Problem
The in-cell technique for integrating a touch panel with a liquid crystal panel faces challenges in yield rate and display performance due to the complexity of embedding touch sensors within pixel units, leading to reduced display area and picture quality.
Innovation Solution
An array substrate design where touch-control units are provided in only a part of the pixel units, comprising data lines, gate lines, storage capacitors, and thin film transistors, allowing for increased display area and improved touch sensitivity by simplifying the manufacturing process and reducing the need for complex semiconductor processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If touch sensors are embedded inside each pixel unit using in-cell technique, then touch panel function is integrated with liquid crystal panel, but manufacturing complexity increases and yield rate deteriorates
Solution Approach 1:
The invention divides the array substrate into two distinct types of pixel units: first pixel units that provide touch sensing functionality and second pixel units that provide display functionality. This segmentation allows each pixel type to be optimized independently, simplifying the manufacturing process while maintaining integrated touch panel functionality.
Solution Approach 2:
The invention extracts the touch sensing function from every pixel unit and concentrates it only in the first pixel units. By taking out the touch sensor embedding requirement from all pixels, the manufacturing complexity is reduced while touch panel integration is maintained through the dedicated first pixel units.
2Adaptability or versatility
If touch sensors are embedded inside each pixel unit, then touch panel function is integrated, but display area is reduced and picture quality deteriorates
Solution Approach 1:
The invention segments the pixel units into first pixel units (with touch sensors) and second pixel units (without touch sensors). The second pixel units can be fully optimized for display area, while the first pixel units handle touch sensing. This segmentation ensures that display area is not reduced across the entire panel.
Solution Approach 2:
The touch sensor embedding is extracted from all pixel units and confined only to the first pixel units. This allows the second pixel units to maintain full display area without the space consumption of embedded touch sensors, thereby preserving overall display area and picture quality.
3Ease of operation
If touch sensors are embedded in pixel units, then touch control function is achieved, but manufacturing yield rate decreases
Solution Approach 1:
The invention segments the array substrate so that only first pixel units contain embedded touch sensors, while second pixel units are manufactured using standard processes. This segmentation isolates the complex touch sensor manufacturing to specific regions, improving overall manufacturing yield rate.
Solution Approach 2:
The complex touch sensor embedding process is extracted from all pixel units and applied only to first pixel units. This reduces the total area requiring complex manufacturing, thereby improving overall yield rate while maintaining full touch control functionality through the first pixel units.
Data Source
AI summary
The present invention provides an array substrate, a display panel and a display method thereof, as well as a display device. The array substrate of the present invention comprises data lines and gate lines formed on a substrate, the data lines and the gate lines are provided intersecting with and insulating from each other and define a plurality of pixel units, each of which comprises: a storage capacitor and a first thin film transistor, a gate of the first thin film transistor is connected to the corresponding gate line, a source thereof is connected to the corresponding data line, and a drain thereof is connected to one end of the storage capacitor, wherein, touch-control units are provided in at least a part of the pixel units.