Array Substrate Notch Gate Drive Circuit Segmentation
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Solution Overview
Problem
Existing mobile terminal designs with notches for front cameras compromise display area due to gate lines that need to avoid the notch, limiting the achievement of a narrow bezel and affecting visual appearance.
Innovation Solution
The array substrate design includes separate gate drive circuits for pixel units on either side of the notch, allowing them to share gate lines within their respective rows, eliminating the need for gate lines to avoid the notch, thus reducing the notch depth and enabling a narrower bezel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If gate lines are designed to avoid the notch, then the notch depth can be reduced, but the display area is occupied by gate lines affecting visual appearance
Solution Approach 1:
The gate drive circuit is divided into two separate circuits: a first gate drive circuit for driving pixel units on the first side of the notch, and a second gate drive circuit for driving pixel units on the second side of the notch. This segmentation allows each gate drive circuit to independently control its respective side without requiring gate lines to traverse the notch area, thereby eliminating the need for gate lines to avoid the notch and improving visual appearance.
Solution Approach 2:
The patent places the first and second gate drive circuits in different spatial locations relative to the notch - the first gate drive circuit is positioned on the first side of the notch while the second gate drive circuit is positioned on the second side. This dimensional separation allows gate lines to be routed independently on each side without intersecting or avoiding the notch, thus eliminating the visual impact of gate lines on the display area.
2Device complexity
If a single gate drive circuit is used for both sides of the notch, then device complexity is reduced, but gate lines must occupy display area to avoid the notch
Solution Approach 1:
The gate drive circuit is divided into two separate circuits: a first gate drive circuit for driving pixel units on the first side of the notch, and a second gate drive circuit for driving pixel units on the second side of the notch. This segmentation allows each gate drive circuit to independently control its respective side without requiring gate lines to traverse the notch area, thereby eliminating the need for gate lines to avoid the notch and improving visual appearance.
3Device complexity
If gate lines share the same row across the notch, then the number of gate lines is reduced, but the notch depth increases affecting bezel width
Solution Approach 1:
The gate drive circuit is divided into two separate circuits: a first gate drive circuit for driving pixel units on the first side of the notch, and a second gate drive circuit for driving pixel units on the second side of the notch. This segmentation allows each gate drive circuit to independently control its respective side without requiring gate lines to traverse the notch area, thereby eliminating the need for gate lines to avoid the notch and improving visual appearance.
Data Source
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AI summary
The present invention relates to an array substrate and a mobile terminal. The array substrate (200) includes: a base (201); a notch (202); a plurality of pixel units on the base (201) to form a display area, a first display area comprising pixel units within a first sub-edge (211), and a second display area comprising pixel units within a second sub-edge (201); first gate lines (204) shared by pixel units in a same row in the first display area; second gate lines (205) shared by pixel units in a same row in the second display area; a first gate drive circuit (207) at the first side of the notch (202) for driving pixel units in the first display area; and a second gate drive circuit (208) at the second side of the notch (202) for driving pixel units in the second display area.