Display Device Shielding Light Leaks Between Data Lines
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Solution Overview
Problem
The shortening of data lines in LCD devices leads to a light leak phenomenon due to the generation of an electric field, which affects the display's ability to achieve high definition images.
Innovation Solution
Incorporating a plurality of jumping electrodes at the front portion of each data line and shield portions between them, which are arranged without overlapping adjacent electrodes laterally, to prevent light leaks. The shield portions are formed of metal material and can be parallel to the data lines, with specific distances and lengths to effectively shield the light leaks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the distance between data lines is shortened to increase the number of data lines for high definition display, then the resolution is improved, but a light leak phenomenon occurs due to electric field generation between the data lines
Solution Approach 1:
The patent introduces jumping electrodes as intermediary elements positioned between adjacent data lines. These jumping electrodes act as mediators that redirect and control the electric field distribution, preventing direct electric field interaction between neighboring data lines that would otherwise cause light leaks. The jumping electrodes are connected to ground potential, creating an equipotential barrier that blocks the harmful electric field coupling while allowing the data lines to maintain short spacing for high resolution display.
Solution Approach 2:
The patent converts the harmful electric field effect into a beneficial shielding mechanism. By intentionally introducing jumping electrodes that create controlled electric field paths to ground, the design transforms the potential light leak problem into a solution where the electric field is deliberately directed through the jumping electrodes rather than allowing uncontrolled field coupling between data lines. This converts the harmful phenomenon into a protective shielding effect.
2Object-generated harmful factors
If jumping electrodes are added to prevent light leaks, then light leak prevention is improved, but the device complexity increases
Solution Approach 1:
The patent merges the jumping electrode structure with the existing data line architecture by integrating the jumping electrodes into the same planar layer or adjacent layers within the display structure. The jumping electrodes are connected to existing ground planes or power networks, combining multiple functions (light leak prevention, electrical shielding, and structural support) into a unified design that minimizes additional complexity while maximizing protective effectiveness.
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
The solution effectively prevents light leaks by shielding the electric field-generated light leaks between the data lines, ensuring high definition image quality and reducing the risk of damage from static electricity.
Implementation Method 1
the shortened distance between the data lines can cause a light leak phenomenon by an electric field being generated between the data lines
Data Source
AI summary
Disclosed is a display device which includes: a plurality of gate lines arranged in a first direction; a plurality of data lines arranged in a second direction crossing the first direction; a plurality of jumping electrodes each disposed a first edge portion of each of the data lines; and a plurality of shield portions disposed between the jumping electrodes. Such a display device allows the shield portions to be disposed between the jumping electrodes. As such, the display device can prevent a light leak phenomenon due to an electric field which is generated by the shortened distance between the front edge portions of the data lines.