Display Panel Notch Shift Register Layout for Narrow Border
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Solution Overview
Problem
Current display technologies face challenges in achieving a narrow border and high screen-to-body ratio, which are essential for user-friendly experiences in smart wearables and portable electronic devices.
Innovation Solution
The display panel design includes a recessed notch in the display area with shift registers in the non-display areas electrically connected to signal lines, reducing the number of shift registers in the non-display area and allowing for a narrower border, while maintaining uniformity and efficiency in signal driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If shift registers are disposed in the non-display area to drive signal lines, then the display function is achieved, but the non-display area becomes wider reducing the screen-to-body ratio
Solution Approach 1:
The patent moves shift registers from the non-display area into the display area's notch region, utilizing the vertical space within the notch to house drive circuit components. This dimensional repositioning allows signal driving functionality to be maintained while effectively reducing the width of the non-display area, thereby increasing the screen-to-body ratio.
Solution Approach 2:
The shift registers are nested within the notch structure of the display area. The notch, which is a recessed region in the display area, accommodates the shift registers, allowing them to be embedded within the display area's boundary rather than occupying additional non-display space.
2Area of stationary object
If the non-display area is narrowed to increase screen-to-body ratio, then aesthetic appearance is improved, but signal line connection and drive circuit layout become more difficult
Solution Approach 1:
Signal lines are routed to extend into the notch region where shift registers are located. This extended routing allows signal lines to maintain adequate length and routing flexibility despite the narrowed non-display area, as the notch provides additional space for signal line traversal and connection.
Solution Approach 2:
The display area is segmented into multiple regions including the notch region, which is specifically designated to accommodate drive circuit components. This segmentation allows the display area to serve dual purposes: maintaining display functionality while providing space for drive circuits, thereby simplifying the overall layout and manufacturing process.
3Area of stationary object
If shift registers are disposed in the second non-display areas within the notch, then the non-display area is narrowed, but the complexity of electrical connection between shift registers and signal lines increases
Solution Approach 1:
The electrical connection is achieved by extending signal lines from the main display area into the notch region where shift registers are positioned. This spatial arrangement, utilizing the notch's depth and width, allows for straightforward electrical connection without requiring complex routing or additional connection structures.
Data Source
AI summary
A display panel includes a display area, and the display area is disposed with a plurality of data lines extending along a first direction. The display area has a notch, and the boundary of the display area is recessed into the display area in a second direction to form the notch. The display area includes a first display area and two second display areas. The display panel also includes a non-display area disposed around the display area. The non-display area includes a first non-display area and two second non-display areas located in the notch. The first non-display area extends along the first direction, and is adjacent to the first display area in the second direction. In the first direction, each of the second non-display areas is adjacent to one of the second display areas. The display panel also includes a drive circuit, and the drive circuit includes a plurality of shift registers. The second direction intersects with the first direction. In the second direction, the first display area is located at one side of the notch. In the first direction, the two second display areas are located at two sides of the notch respectively, and the two second display areas are adjacent to the first display area. The display area includes a plurality of signal lines extending along the second direction, and one shift register is electrically connected to at least one signal line. The second non-display areas are disposed with the shift registers, and the shift registers disposed in the second non-display areas are electrically connected to the signal lines located in the first display area.