Display Panel Bezel Width Reduction via Source Line Routing
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Solution Overview
Problem
The existing display panels with holes suffer from increased bezel width due to discontinuous gate and source lines, which deteriorates image quality by expanding non-light-emitting areas around the hole, particularly in organic light-emitting display devices.
Innovation Solution
The display panel design reduces bezel width by having source lines extend along the bezel and into a second pixel array, sharing sub-pixels across columns, thereby minimizing the number of source lines in the bezel and maintaining image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If source lines are disposed in the bezel area around the hole to maintain signal transmission, then the bezel width increases, but image quality deteriorates due to expanded non-light-emitting areas
Solution Approach 1:
The source lines are routed to extend into a second pixel array located in a different spatial dimension (below the hole) rather than expanding horizontally in the bezel area. This dimensional transition allows signal transmission continuity while minimizing the bezel width, as the lines pass through the hole region vertically rather than horizontally across the display area.
Solution Approach 2:
The display panel is divided into a first pixel array (above the hole) and a second pixel array (below the hole), with source lines extending between them. This segmentation allows the source lines to be discontinuous in the traditional sense but continuous in function, as they transmit signals from the first pixel array through the bezel region into the second pixel array, maintaining signal transmission while reducing bezel width.
2Area of stationary object
If source lines extend along the bezel and into a second pixel array, then the number of source lines in the bezel is reduced, but the complexity of line routing increases
Solution Approach 1:
The source lines extending into the second pixel array serve multiple functions: they transmit signals from the first pixel array, pass through the bezel region to minimize width, and continue to drive sub-pixels in the second pixel array. This multi-functionality reduces the need for separate signal paths and simplifies the overall routing complexity despite the extended path.
Solution Approach 2:
The source lines are merged into a continuous structure that spans both the first and second pixel arrays, rather than being separate discontinuous segments. This merging reduces the total number of source lines needed in the bezel region, as the same lines serve both pixel arrays, thereby reducing complexity despite the extended routing path.
Data Source
AI summary
A display panel capable of reducing a width of a bezel of an area around a hole and a display device including the panel are disclosed. The display panel having the hole defined therein includes a first pixel array including source lines and sub-pixels; a bezel defined around the hole and at least one of the source lines of the first pixel array extends in and along the bezel; and a second pixel array including sub-pixels and the at least one source line extending along the bezel and to the second pixel array.