Display Substrate Peripheral Circuit Side-Mounting for Frameless Aperture
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Solution Overview
Problem
Current display technologies, such as GOA and COF, are unable to achieve a frameless display screen, limiting the seamless display of large-size spliced screens and affecting user experience.
Innovation Solution
A display substrate with a base substrate structure, a display structure divided into light-transmissive and opaque regions, and a driving circuit where the peripheral circuit is positioned on the base substrate distal to the display structure, coupled through holes, allowing for a frameless display by eliminating the need for frame regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the peripheral circuit is arranged in the frame region of the display substrate, then the driving function is provided, but the frameless display cannot be realized and the aperture ratio is reduced
Solution Approach 1:
The peripheral circuit is moved from the traditional planar frame region to the side surface of the base substrate, utilizing the vertical dimension and side surface area. This spatial reconfiguration allows the driving circuit to be positioned in the opaque region without occupying the frame area, thereby enabling frameless display while maintaining the aperture ratio.
Solution Approach 2:
The peripheral circuit is integrated into the side surface structure of the base substrate, effectively nesting the driving circuit within the existing substrate geometry. This approach allows the peripheral circuit to coexist with the display structure without requiring additional frame space, thus achieving frameless display.
2Area of stationary object
If the peripheral circuit is positioned on the side surface of the base substrate in the opaque region, then frameless display is enabled, but the electrical connection through the base substrate must be established
Solution Approach 1:
Conductive through-holes are introduced as intermediary structures to establish electrical connection between the peripheral circuit on the side surface and the pixel driving circuit on the front surface. These through-holes act as conductive pathways, simplifying the connection structure compared to alternative routing methods while enabling the frameless configuration.
3Ease of operation
If conventional GOA or COF technologies are used, then the driving function is achieved, but the left and right frames cannot be narrowed completely
Solution Approach 1:
The peripheral circuit is extracted from the traditional frame region and repositioned to the side surface of the base substrate. This extraction removes the need for left and right frames, allowing the display area to extend to the edges of the substrate while maintaining the driving function through the side-surface positioned peripheral circuit.
Data Source
AI summary
A display substrate, a manufacturing method thereof and a display apparatus are provided. The display substrate includes a base substrate structure and a display structure on the base substrate structure, the display structure includes a plurality of light emitting units and is divided into multiple light-transmissive regions and multiple opaque regions; and a driving circuit for driving the display structure to display and comprising a pixel driving circuit between the base substrate structure and the display structure, and a peripheral circuit driving the pixel driving circuit and arranged on a side of the base substrate structure distal to the display structure and in the opaque regions, and the peripheral circuit is coupled to the pixel driving circuit through at least one through hole formed in the base substrate structure. The display substrate can realize frameless display, which is beneficial to realize seamless splicing display of a plurality of display substrates.