Display Panel Auxiliary Line Layout for Uniform Polygonal Brightness
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Solution Overview
Problem
Existing electronic devices with polygonal-shaped active regions face degradation in display quality due to non-uniform voltage distribution and load differences among data lines, leading to brightness inconsistencies.
Innovation Solution
The electronic device incorporates auxiliary lines with varying widths and lengths to form capacitors with data and bus lines, ensuring uniform voltage distribution and reducing load differences across the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the active region has a polygonal shape to increase adaptability, then device versatility is improved, but voltage distribution uniformity deteriorates
Solution Approach 1:
The patent applies local quality by configuring auxiliary lines with different widths in different regions of the display panel. Specifically, the auxiliary line in the first region (corresponding to the truncated corner area) has a first width, while the auxiliary line in the second region (corresponding to the main rectangular area) has a second width that is different from the first width. This local differentiation compensates for the non-uniform voltage distribution caused by the polygonal shape, thereby resolving the contradiction between adaptability and voltage uniformity.
2Stability of the object's composition
If auxiliary lines with different widths are used to compensate for load differences, then voltage distribution uniformity is improved, but device complexity increases
Solution Approach 1:
The auxiliary lines serve multiple functions: they act as capacitance compensation elements to balance load differences, serve as voltage distribution regulators, and maintain the polygonal shape of the active region for design flexibility. By making the auxiliary lines multi-functional, the patent achieves voltage uniformity without proportionally increasing device complexity, as the same structural elements perform multiple roles.
3Stability of the object's composition
If the auxiliary line width varies to form capacitors with different capacitances, then load balance is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent implements parameter changes by varying the width parameter of the auxiliary lines across different regions. The auxiliary line in the first region has a first width, while the auxiliary line in the second region has a second width. This controlled parameter variation allows for different capacitance values to be formed, thereby balancing the load distribution. The width parameter is adjusted systematically rather than randomly, which helps manage manufacturing precision requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration maintains consistent display quality by stabilizing voltage levels and minimizing brightness variations, even in polygonal-shaped active regions.
Implementation Method 1
a first auxiliary line overlapping with the first bus line and the plurality of data lines in a plan view; and a second auxiliary line overlapping with the second bus line and the plurality of data lines in a plan view
Implementation Method 2
the first auxiliary line and a data line from among the plurality of data lines may form a first auxiliary capacitor therebetween, and the data line and the first bus line may form a second auxiliary capacitor therebetween
Data Source
AI summary
An electronic device includes: a plurality of pixels; a first bus line and a second bus line extending in a first direction; a plurality of voltage lines extending in a second direction crossing the first direction, and connecting the plurality of pixels to the first bus line and the second bus line; a plurality of data lines extending in the second direction, and connected to the plurality of pixels; a first auxiliary line overlapping with the first bus line and the plurality of data lines in a plan view; and a second auxiliary line overlapping with the second bus line and the plurality of data lines in a plan view. A first width of the first auxiliary line in the first direction is different from a second width of the second auxiliary line in the first direction.