Display Panel Transfer Lines for Hole Signal Routing
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Solution Overview
Problem
Existing display panels with holes for accommodating photosensitive devices face challenges in maintaining a high screen ratio and image quality due to the need for extensive bypass lines, which increase the size of the holing area and reduce the screen ratio.
Innovation Solution
The display panel incorporates transfer lines that electrically connect row and column line sections across the holing area, reducing the number of bypass lines needed in the enclosing area and minimizing the holing area's size, thereby enhancing the screen ratio and display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bypass lines are used to electrically connect row and column line sections across the holing area, then signal continuity is maintained, but the holing area size increases and screen ratio decreases
Solution Approach 1:
The patent moves the electrical connection path from the enclosing area (2D plane around the hole) into the display area (2D plane with active pixels). By using transfer lines that extend into the display area and connect to pixel driving circuits, the connection utilizes the third dimension of the circuit layout space, allowing signal continuity without expanding the holing area border.
Solution Approach 2:
The pixel driving circuits serve as intermediary elements that facilitate the electrical connection between row and column line sections. Instead of directly connecting the line sections with bypass lines around the hole, the patent uses the pixel driving circuits as intermediate connection points, allowing the row and column lines to be electrically connected through the display area rather than around the holing area.
2Reliability
If bypass lines are extended to maintain signal continuity, then reliability is improved, but device complexity increases
Solution Approach 1:
The pixel driving circuits perform multiple functions: they drive the display pixels and simultaneously serve as connection points for the row and column line sections. This multi-functionality eliminates the need for dedicated bypass lines, reducing device complexity while maintaining signal continuity.
Solution Approach 2:
The patent merges the function of signal transmission and the function of line connection into a single integrated structure. The transfer lines and pixel driving circuits combine the roles of data transmission and electrical connection, eliminating the need for separate bypass lines and reducing overall device complexity.
3Area of stationary object
If the holing area size is reduced to improve screen ratio, then screen ratio is improved, but maintaining signal continuity becomes more difficult
Solution Approach 1:
By transitioning the connection path from the enclosing area to the display area, the patent creates additional spatial dimensions for routing signals. This allows the holing area to be minimized while signal continuity is maintained through the transfer lines and pixel driving circuits in the display area.
Data Source
AI summary
A display panel and an electronic device. The display panel includes a holing area and a display area surrounding the holing area, and the display panel is provided with row lines extending in a first direction, and column lines extending in a second direction; some row lines are separated by the holing area into mutually corresponding first row line sections and second row line sections; some column lines are separated by the holing area into mutually corresponding first column line sections and second column line sections; at least some of the first column line sections are electrically connected to the corresponding second column line sections by means of corresponding transfer lines located in the display area; and/or at least some of the first row line sections are electrically connected to the corresponding second row line sections by means of corresponding transfer lines located in the display area.