Crossing Data and Scanning Lines in Display Array Substrates
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Solution Overview
Problem
Conventional display device fabrication requires additional steps and increased costs due to the need for separate formation of touch control signal lines, complicating the process and reducing production efficiency.
Innovation Solution
A method for forming an array substrate where data lines and scanning lines are created in the same layer, allowing first signal lines to function as touch control signal lines, thereby eliminating the need for additional touch control signal lines and simplifying the fabrication process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate touch control signal lines are formed in addition to data lines, then touch control function is achieved, but fabrication process complexity increases and production efficiency decreases
Solution Approach 1:
The data lines are designed to serve dual functions: displaying images during display stages and providing touch control signals during touch control stages. The common electrodes are reused as both display electrodes and touch control electrodes, eliminating the need for separate touch control signal lines and reducing fabrication process complexity
Solution Approach 2:
The patent combines the display signal transmission function and touch control signal transmission function into the same data lines and common electrodes. By merging these functions, the structure avoids the need for separate touch control signal lines, thereby simplifying the fabrication process and improving production efficiency
2Adaptability or versatility
If separate touch control signal lines are formed in addition to data lines, then touch control function is achieved, but production efficiency decreases
Solution Approach 1:
The data lines are designed to serve dual functions: displaying images during display stages and providing touch control signals during touch control stages. The common electrodes are reused as both display electrodes and touch control electrodes, eliminating the need for separate touch control signal lines and reducing fabrication process complexity
Solution Approach 2:
The display device operates in periodic cycles alternating between display stages and touch control stages. During display stages, data lines transmit display signals; during touch control stages, the same data lines transmit touch control signals. This periodic switching allows single-use infrastructure to support multiple functions, improving production efficiency
Data Source
AI summary
A forming method for an array substrate is provided. The method includes: providing a substrate; forming multiple scanning lines and multiple data lines on the substrate, where the scanning lines cross the data lines and are insulated from the data lines, and the first data lines are arranged in the same layer as the scanning lines; forming a first insulating layer on the first data lines and the scanning lines, and forming first via holes in the first insulating layer; and forming second data lines on the first insulating layer, where the second data lines electrically connect to the first data lines via the first via holes, first signal lines are insulated from the second data lines and the first signal lines are in a same layer with the second data lines.