Integrated Cathode and Touch Electrode Layer for Thin Display Panels
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Solution Overview
Problem
Conventional touch display devices have a thicker thickness due to the need for separate manufacturing of touch screens, whether externally hung or integrated, which complicates thickness reduction.
Innovation Solution
A display panel design where a cathode pattern and touch control units are integrated on the same electrode layer, eliminating the need for a separate touch control layer, with a cathode pattern and touch control units arranged in an array to reduce thickness and improve signal connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a separate touch control layer is used, then touch control function is achieved, but the thickness of the display panel increases
Solution Approach 1:
The patent merges the touch control electrode layer with the display electrode layer into a single integrated layer. The first electrode layer simultaneously serves as both the touch control electrode and the display electrode, eliminating the need for a separate touch control layer and thereby reducing the overall thickness of the display panel while maintaining both touch control and display functions.
2Length of stationary object
If cathode pattern and touch control units are on the same layer, then thickness is reduced, but insulation between components must be ensured
Solution Approach 1:
The patent segments the first electrode layer into functionally independent regions: the cathode pattern portion and the touch control unit portion. These segments are electrically insulated from each other through physical separation and insulation structures, allowing both components to coexist on the same layer without electrical interference while maintaining their respective functions.
3Ease of operation
If touch screen is externally hung or integrated separately, then touch control function is achieved, but manufacturing complexity increases
Solution Approach 1:
The patent combines the touch control electrode and display electrode into a single first electrode layer, eliminating the need for separate manufacturing processes for external hanging or separate integration. This unified structure simplifies the manufacturing process by reducing the number of layers and assembly steps required, while still achieving both touch control and display functions.
Data Source
AI summary
A display panel and an electronic device are provided in the present application. The display panel includes a driving substrate and a plurality of light-emitting units disposed on the driving substrate. A first electrode layer is disposed on a side of the driving substrate provided with the light-emitting units. The first electrode includes a cathode pattern, and a plurality of touch control units arranged in an array. The cathode pattern is insulated from the plurality of touch control units.