LCD Pixel Structure Gate Line Overlap for Dark Line Masking
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Solution Overview
Problem
Conventional LCD pixel structures face challenges in achieving high aperture and transparent rates due to dark lines formed by liquid crystal molecules rotating differently at domain intersections, which affect display quality and make it difficult to raise these rates.
Innovation Solution
The pixel structure divides the aperture by gate lines, with the edges of the display domains overlapping the gate lines, which are made of non-transparent metal, thereby covering the dark lines and improving aperture and transparent rates, and also prevents display errors when the LCD panel is pushed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the aperture is divided into multiple display domains to improve viewing angle, then the viewing angle is improved, but dark lines are formed at domain intersections which reduce transparent rate and aperture rate
Solution Approach 1:
The patent converts the harmful dark lines formed at domain intersections into a beneficial feature by intentionally positioning gate lines to overlap with these dark line regions. The gate lines, which are inherently non-transparent, now serve to mask the dark lines that would otherwise be visible and reduce transparent rate. This transforms a defect into a solution, allowing the display to maintain both wide viewing angles through multi-domain configuration and high transparent rate by hiding the intersection dark lines behind the gate line structure.
2Adaptability or versatility
If the aperture is divided into multiple display domains to improve viewing angle, then the viewing angle is improved, but the aperture rate is reduced due to dark lines at intersections
Solution Approach 1:
The patent converts the harmful dark lines formed at domain intersections into a beneficial feature by intentionally positioning gate lines to overlap with these dark line regions. The gate lines, which are inherently non-transparent, now serve to mask the dark lines that would otherwise be visible and reduce transparent rate. This transforms a defect into a solution, allowing the display to maintain both wide viewing angles through multi-domain configuration and high transparent rate by hiding the intersection dark lines behind the gate line structure.
3Reliability
If gate lines are positioned to cover dark lines at domain intersections, then transparent rate and aperture rate are improved, but the gate lines must be made non-transparent which may affect other display characteristics
Solution Approach 1:
The patent converts the harmful dark lines formed at domain intersections into a beneficial feature by intentionally positioning gate lines to overlap with these dark line regions. The gate lines, which are inherently non-transparent, now serve to mask the dark lines that would otherwise be visible and reduce transparent rate. This transforms a defect into a solution, allowing the display to maintain both wide viewing angles through multi-domain configuration and high transparent rate by hiding the intersection dark lines behind the gate line structure.
Solution Approach 2:
The gate lines serve as an intermediary element that mediates between the conflicting requirements of maintaining high transparent rate and handling the dark lines at domain intersections. By positioning the gate lines to overlap with the dark line regions, they act as a mediator that hides the harmful dark lines while allowing the rest of the aperture to remain transparent and functional.
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 solution effectively raises the aperture and transparent rates, enhancing display quality by covering the dark lines caused by differing liquid crystal molecule rotations and reducing the risk of display errors when the panel is pushed.
Implementation Method 1
the edge (the dividing lines of the aperture of the pixel) of the display domains overlaps the gate lines. Because the gate lines are made by non-transparent metal material, the overlapping areas of the gate lines and the edges of the display domains do not affect the aperture rate and the transparent rate.
Data Source
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AI summary
A liquid crystal pixel structure is disclosed. The liquid crystal pixel structure includes: a pixel electrode, located in a pixel aperture. The pixel electrode has two or more display domains applied with the same voltage level. The pixel electrode extends in different directions in the display domains. A gate line is located at an intersection of the display domains. An edge of the intersection of the display domains overlaps the gate line. A data line is located at an edge of the pixel aperture. The pixel electrode is controlled by the gate line and the data line via a transistor. The aperture of the pixel structure is divided by the gate lines. Therefore, the edge of the display domains overlaps the gate lines. The dark line can be covered by the gate lines and thus the aperture rate and the transparent rate can be raised.