Display Panel Narrow Bezel Shared Signal Line
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Solution Overview
Problem
The large bezel area in display panels, resulting from the non-display region used for driving circuits, limits the screen-to-body ratio and reduces the viewing area due to the inability to utilize this region for display purposes.
Innovation Solution
A display panel design that incorporates cascaded light-emitting driving units and gate driving units, with shared input terminals and a common transmission signal line, reducing the need for separate signal lines and minimizing the non-display region, thereby reducing the bezel width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate signal lines are used for light-emitting driving circuit and gate driving circuit, then the driving function is reliable, but the non-display region area increases
Solution Approach 1:
The patent merges the signal transmission paths of the light-emitting driving circuit and gate driving circuit by using a shared common signal line. The input terminals of both driving circuits are connected to the same common signal line, which carries the driving signals for both circuits. This consolidation reduces the total number of signal lines required, thereby minimizing the non-display region area while maintaining reliable driving functionality for both the light-emitting units and gate units.
Solution Approach 2:
The common signal line serves multiple functions simultaneously: it provides driving signals to both the light-emitting driving units and the gate driving units. This multi-functional signal line replaces what would traditionally require separate dedicated signal lines for each driving circuit, optimizing the use of the non-display region and reducing overall circuit complexity while ensuring both driving functions operate reliably.
2Manufacturing precision
If more signal lines are used for driving circuits, then the driving control is precise, but the bezel width increases
Solution Approach 1:
The patent combines multiple signal transmission functions into a single common signal line that serves both the light-emitting driving circuit and gate driving circuit. By sharing this signal line, the patent reduces the total number of signal lines required, thereby decreasing the horizontal space occupied by the non-display region and reducing bezel width, while maintaining precise driving control through proper signal distribution to both driving circuits.
3Area of stationary object
If the non-display region is minimized, then the screen-to-body ratio increases, but the space for driving circuits is insufficient
Solution Approach 1:
The patent minimizes the non-display region area by merging the signal lines of the light-emitting driving circuit and gate driving circuit into a single common signal line. This consolidation reduces the space required for signal transmission pathways, allowing the non-display region to be minimized while still providing adequate space for the driving circuit components themselves to function properly.
Solution Approach 2:
The common signal line performs multiple functions by simultaneously providing driving signals to both light-emitting units and gate units. This multi-functional approach maximizes the utilization of the limited non-display region space, ensuring that both driving circuits have access to necessary signal pathways without requiring excessive horizontal space that would increase bezel width.
Data Source
AI summary
The present disclosure provide a display panel and a display apparatus. The display panel includes a pixel driving circuit including a light-emitting control signal terminal and a node control signal terminal; the display panel further includes a light-emitting driving circuit, including a plurality of light-emitting driving units, an output terminal of each light-emitting driving unit transmitting a light-emitting control signal to a light-emitting control signal terminal; a gate driving circuit, including a plurality of gate driving units, an output terminal of gate driving unit transmitting a node control signal to the node control signal terminal, where signals inputted to input terminals of the light-emitting driving units and input terminals of the gate driving units are the same; and a common transmission signal line, the input terminals of the light-emitting driving units and the input terminals of the gate driving units are connected to the same common transmission signal line.