Gate Driver Placement in Thin Film Transistor Substrates
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Solution Overview
Problem
The existing display panel designs are limited in narrowing the left and right border regions due to the placement of the gate driver, which restricts further minimization of these borders.
Innovation Solution
The gate driver is positioned in the upper or lower border region of the TFT substrate, allowing for the narrowing of the left and right border regions by electrically coupling scanning lines to the gate driver without occupying the left or right border regions, facilitating the reduction of border widths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the gate driver is positioned in the left or right border region, then the gate driver can be effectively placed and connected, but the left and right border regions cannot be narrowed
Solution Approach 1:
The gate driver is moved from the traditional left/right border region to the upper/lower border region, utilizing a different spatial dimension. This dimensional transition allows the left and right borders to be narrowed while the gate driver remains accessible through the upper or lower connections.
2Length of stationary object
If the gate driver is positioned in the upper or lower border region, then the left and right border regions can be narrowed, but the gate driver connection to scanning lines becomes more complex
Solution Approach 1:
The signal transmission path is segmented into multiple sections: the gate driver in the upper/lower border region connects to scanning lines through dedicated connection regions. This segmentation allows the gate driver to be positioned away from the left/right borders while maintaining effective signal transmission through structured connection paths.
3Length of stationary object
If the border regions are narrowed, then the display panel achieves better aesthetics and design flexibility, but the gate driver placement becomes constrained
Solution Approach 1:
The gate driver positioning breaks the traditional symmetric placement in left/right border regions. By positioning the gate driver in the upper or lower border region asymmetrically, the design achieves narrower left and right borders while maintaining functional connectivity through the upper or lower connections.
Data Source
AI summary
A TFT substrate for a display panel includes a substrate, a plurality of first scanning lines and a plurality of data lines thereon. A conductive layer is applied above the first scanning lines and at least one electrically insulating layer between the plurality of first scanning lines and the conductive layer. A touch sensing layer is placed above the conductive layer. The conductive layer forms a plurality of second scanning lines and a plurality of touch traces. Each touch trace is electrically coupled to the touch sensing layer. Each second scanning line is electrically coupled to one first scanning line by extending through the at least one electrically insulating layer.