Color Filter Substrate Pressure Sensor Integration for Narrow Bezel Displays
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Solution Overview
Problem
Display panels face challenges in integrating pressure sensors into non-display areas without occupying additional space, which hinders the achievement of a narrow bezel design and can cause interference with display drive signal lines.
Innovation Solution
The integration of pressure sensors, power supply signal input lines, and pressure signal output lines into the non-display area of the color filter substrate, rather than the array substrate, allows for a narrow bezel design while avoiding interference with display drive signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pressure sensors are integrated into the array substrate, then pressure detection function is achieved, but the non-display area space is insufficient and bezel width increases
Solution Approach 1:
Instead of integrating pressure sensors into the array substrate as conventionally done, the patent inverts the approach by placing pressure sensors on the color filter substrate. This reversal allows pressure sensors to be positioned in the non-display area without competing with display driver circuits, thereby achieving pressure detection functionality while maintaining sufficient space and narrow bezel design.
2Adaptability or versatility
If pressure sensors are placed in the non-display area of the array substrate, then pressure detection is enabled, but display drive signal lines experience interference
Solution Approach 1:
The patent extracts pressure sensors from the array substrate and relocates them to the color filter substrate. This separation removes the source of signal interference from the display drive signal lines on the array substrate, thereby enabling pressure detection capability while eliminating the harmful interference effect.
3Adaptability or versatility
If pressure sensors are integrated into the display panel, then application scope is enriched, but additional space occupation prevents narrow bezel design
Solution Approach 1:
The patent reverses the conventional integration approach by placing pressure sensors on the color filter substrate instead of the array substrate. This inversion allows pressure sensors to utilize the non-display area of the color filter substrate, which does not contain display driver circuits, thereby enriching application scope while maintaining narrow bezel design without additional space occupation.
Data Source
AI summary
A display panel and a display device are provided. The display panel includes a color filter substrate and an array substrate bonded together by non-conductive sealant. The display panel includes a display area and a non-display area around the display area. A first non-display area of the color filter substrate is provided with: at least two pressure sensors, each of which includes a signal input terminal and a signal output terminal; a plurality of power supply signal input lines, each of which is electrically connected to a respective one of the signal input terminals of the at least two pressure sensors; and a plurality of pressure signal output lines, each of which is electrically connected to a respective one of the signal output terminals of the at least two pressure sensors.