Display Device Trench Substrate for Capacitor Mounting
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Solution Overview
Problem
The challenge in display device design is to secure sufficient mounting space for load matching capacitors while minimizing bezel size, as the reduced non-display area makes it difficult to accommodate drivers and load matching capacitors.
Innovation Solution
The display device incorporates a substrate with a trench portion and multiple display areas, allowing for the placement of gate drivers and load matching capacitors in the peripheral area between these areas, which reduces the need for overlapping lines and provides ample space for capacitor mounting, thereby minimizing interference and defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the non-display area is reduced to achieve a narrow bezel design, then the display area is enlarged and aesthetics are improved, but the mounting space for drivers and load matching capacitors becomes insufficient
Solution Approach 1:
The patent utilizes the vertical dimension by creating a trench portion that extends downward from the substrate surface. This allows components to be mounted in the depth direction rather than only in the planar area, effectively increasing mounting space without enlarging the bezel area. The trench portion provides a three-dimensional space that accommodates drivers and load matching capacitors while maintaining a compact overall footprint.
Solution Approach 2:
The patent embeds components within the trench portion structure, nesting them inside the recessed space. The drivers and load matching capacitors are positioned within the trench, which is itself formed within the substrate structure. This nested arrangement allows multiple components to occupy a compact volume, maximizing the use of available space while maintaining a narrow bezel design.
2Area of stationary object
If multiple gate drivers are placed close together to save space, then the bezel size is reduced, but line overlap and interference between drivers increase
Solution Approach 1:
The patent divides the gate driver functionality into multiple separate driver units (first gate driver, second gate driver, third gate driver) that are distributed across different display areas and peripheral regions. Each driver unit independently controls a specific set of gate lines, which segments the signal paths and reduces the likelihood of line overlap and interference between adjacent drivers.
Solution Approach 2:
The patent introduces a peripheral area as an intermediary zone between the main display areas. This peripheral region serves as a buffer space that separates the gate drivers and their associated signal lines, reducing direct interference while still allowing compact overall布局. The trench portion also acts as an intermediary structure that organizes and isolates the drivers and capacitors from each other.
Data Source
AI summary
A display device includes a substrate. The substrate has a trench portion recessed inward at a side, and includes a first display area, a second display area and a third display area, the second and third display areas being protruded from a first side of the first display area with the trench portion interposed therebetween, and a peripheral area around the display area. First gate lines, second gate lines, and third gate lines are respectively on the first display area, the second display area, and the third display area, and are respectively coupled to first pixels, second pixels, and third pixels. First, second, and third gate drivers are respectively to sequentially provide first gate signals, second gate signals, and third gate signals to the first gate lines, second gate lines, and third gate lines. The third gate driver is on the peripheral area between the third and second display areas.