Integrated Touch Display Panel for Borderless Full-Screen Splicing
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Solution Overview
Problem
Existing large-screen displays using infrared or external-mounted capacitive touch control technologies have borders that prevent full-screen display, with infrared touch control protruding and external-mounted capacitive touch control being unsuitable for seamless integration.
Innovation Solution
A display panel design integrating a touch control electrode within the display substrate, eliminating the need for external borders by electrically connecting touch control electrodes through via holes, allowing seamless splicing and full-screen display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If infrared touch control is used, then touch control function is achieved, but the border surface protrudes 13.6 mm causing poor appearance and preventing full-screen display
Solution Approach 1:
The patent merges the touch control function with the display substrate by integrating touch control electrodes, insulating layers, and via holes directly into the display panel structure. This integration eliminates the need for separate infrared transmitting and receiving tubes, allowing the touch control surface to be flush with the display surface while maintaining full-screen display capability.
2Area of stationary object
If external-mounted capacitive touch control is used, then full-screen display is attempted, but borders are still present which is unfavorable for realizing full-screen display
Solution Approach 1:
The patent transitions from external mounting to internal integration by moving the touch control electrodes into the substrate's internal structure. The electrodes are positioned within the substrate thickness dimension, connected through via holes that penetrate the insulating layer, allowing the touch control surface to align with the display surface without external borders.
3Area of stationary object
If touch control electrodes are integrated within the display substrate, then full-screen display is achieved, but complex multi-layer structure with via holes is required
Solution Approach 1:
The display substrate is designed to perform multiple functions simultaneously: it serves as both the display medium and the touch control sensor. The same substrate layers (insulating layers, electrode layers, via holes) fulfill both display and touch control functions, eliminating the need for separate touch control modules and reducing overall system complexity.
Data Source
AI summary
A display panel and an electronic device. The display panel includes at least one first display substrate. The first display substrate includes a drive device layer, a first insulating layer, a first touch control layer, a light-emitting device binding layer, and a light-emitting device. The first touch control layer is provided with a number of first touch control electrodes. The first touch control electrode is electrically connected to a first touch control drive device through a first via hole penetrating the first insulating layer.