Display Hole Region Gate Routing for Larger Active Area
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Solution Overview
Problem
Current display devices face challenges in maximizing the display area while minimizing the non-display area, which limits their efficiency and versatility in various applications.
Innovation Solution
The display device incorporates a substrate with defined transmission, display, and non-display areas, featuring a peripheral area with gate driving circuits and connection lines that efficiently drive gate and scan lines, allowing for reduced non-display area by connecting line portions across the transmission area, thereby increasing the display area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the non-display area is reduced to expand the display area, then the display area is increased, but the gate connection lines become discontinuous and require additional connection structures
Solution Approach 1:
The gate connection lines transition from a planar two-dimensional layout to a three-dimensional structure by routing lines through the non-display area and utilizing vertical spacing. This allows the first and second gate connection lines to be positioned at different vertical levels, enabling them to cross the transmission area without physical interference while maintaining electrical connectivity to discontinuous gate lines in the display area.
Solution Approach 2:
The gate connection lines are divided into multiple segments (first gate connection line and second gate connection line) that are spatially separated and routed through different regions. This segmentation allows each line to independently connect to its corresponding gate line portion without interfering with the other, resolving the complexity of connecting discontinuous gate lines across the transmission area.
2Reliability
If gate driving circuits are disposed in the peripheral area, then the gate lines can be driven, but the non-display area increases
Solution Approach 1:
Gate driving circuits are positioned in the peripheral area at a vertical distance from the display area, utilizing the third dimension (vertical spacing) to coexist with the display structures. This spatial arrangement allows the gate driving circuits to be integrated without horizontally expanding the non-display area, as the circuits operate in a vertically separated space above or below the substrate plane.
3Area of stationary object
If the transmission area is positioned in the display area, then the display area is maximized, but the gate lines must be discontinuous and require complex routing
Solution Approach 1:
The discontinuous gate lines in the display area are connected by routing connection lines through the non-display area and utilizing vertical spacing. The first and second gate connection lines are positioned at different vertical levels, allowing them to cross the transmission area without physical interference. This three-dimensional routing simplifies the connection process compared to trying to route lines in a constrained two-dimensional plane.
Data Source
AI summary
A display device includes: a substrate in which a transmission area, a display area, a non-display area and the display area, and a peripheral area are defined; pixels arranged on the display area; initialization gate lines and compensation gate lines extending along pixel rows; gate driving circuits disposed on the peripheral area; and gate connection lines disposed on the non-display area. A k-th gate driving circuit among the gate driving circuits simultaneously drives m-th and (m+1)-th initialization gate lines and n-th and (n+1)-th compensation gate lines. First portions of the n-th and (n+1)-th compensation gate lines and second portions of the n-th and (n+1)-th compensation gate lines, which are physically apart from each other by the transmission area, are electrically connected to each other through a first gate connection line among gate connection lines.