Array Substrate Signal Line Layout for Touch Display Uniformity
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Solution Overview
Problem
The integration of touch control and other advanced functions in display technologies introduces additional signal lines that can interfere with data signals, leading to display unevenness and increased power consumption.
Innovation Solution
The array substrate design includes a signal line between white and color sub-pixel regions, with data lines and touch electrode lines optimized to minimize interference, allowing for reduced touch electrode lines and increased aperture ratio, and multiplexing touch electrodes with common electrodes for higher integration and reduced IC requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional signal lines are added for touch control functions, then the display panel can achieve advanced functions, but the signal lines interfere with data signals causing display unevenness
Solution Approach 1:
The patent introduces a shielding structure as an intermediary element between the touch control signal lines and the data signal lines. This shielding structure acts as a mediator that blocks or reduces the electromagnetic interference from touch signal lines affecting the data signal transmission, thereby preventing display unevenness while maintaining touch control functionality.
Solution Approach 2:
The patent extracts or separates the touch control signal lines from the data signal lines by positioning them in different regions or layers of the display panel. By taking out the interfering touch signal lines away from the sensitive data signal paths, the harmful electromagnetic interference is reduced while still allowing touch control functionality to operate.
2Adaptability or versatility
If additional signal lines are added for touch control functions, then the display panel can achieve advanced functions, but the power consumption increases
Solution Approach 1:
The patent merges the touch control electrode lines with the common electrode structure. By combining these functions into a single electrode system rather than using separate dedicated signal lines, the number of active signal transmission paths is reduced, thereby lowering the overall power consumption while maintaining touch control capability.
Solution Approach 2:
The patent implements multi-functionality by designing the common electrode to serve both as a common electrode for display operation and as a touch control electrode. This universal structure eliminates the need for separate dedicated touch signal lines, reducing the total energy consumption of the display panel.
3Adaptability or versatility
If more signal lines are added for touch control, then advanced functions are achieved, but the aperture ratio decreases
Solution Approach 1:
The patent merges the touch control electrode lines with the common electrode structure, allowing the touch control function to be implemented using existing electrode areas rather than requiring additional dedicated signal lines. This merging approach maintains the aperture ratio while achieving touch control functionality.
Solution Approach 2:
The patent makes the common electrode serve multiple functions - both as a common electrode for display operation and as a touch control electrode. This multi-functional design eliminates the need for separate touch control signal lines that would reduce the aperture ratio, thereby maintaining large opening areas while achieving advanced touch control functions.
Data Source
AI summary
An embodiment of the present disclosure provides an array substrate, a display panel, and a display device, relating to the field of display technology. The array substrate includes a plurality of sub-pixel regions. The sub-pixel regions include at least one white sub-pixel region and a sub-pixel region adjacent to the white sub-pixel region. A signal line is disposed between the white sub-pixel region and the sub-pixel region adjacent thereto. At most a first data line is disposed between the white sub-pixel region and the adjacent sub-pixel region. The first data line is used to provide a data signal to a sub-pixel electrode in the white sub-pixel region. The signal line transmits a signal of a different type than the data signal.