Pixel Electrode Slit Layout for Balanced Display Weak Zones
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Solution Overview
Problem
In 8K display technology, defects such as afterimages, horizontal stripes, and Trace Mura occur due to disordered electric fields at pixel electrode slits, leading to uneven brightness zones that affect picture quality and customer satisfaction.
Innovation Solution
A display substrate with a first electrode featuring slits where the light-transmitting portion at one end is larger than the other, creating a balanced weak zone to mitigate these defects by adjusting the electric field influence across the slit ends.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the pixel electrode slit is designed with uniform structure, then the manufacturing is simple, but the electric field becomes disordered at corners causing weak zones and display defects
Solution Approach 1:
The patent applies local quality by making the light-transmitting portions at opposite ends of each slit unequal in size. Specifically, one end of the slit has a larger light-transmitting portion while the opposite end has a smaller light-transmitting portion. This asymmetric design creates different electric field distributions at each end of the slit, preventing the formation of disordered electric fields and weak zones that cause display defects such as Trace Mura and afterimages.
2Reliability
If the light-transmitting portion at one end of the slit is made larger than the other end, then the weak zones become symmetric and display defects are reduced, but the slit structure becomes more complex
Solution Approach 1:
The patent applies asymmetry by deliberately designing the light-transmitting portions at opposite ends of each slit to be unequal. Each slit has one end with a larger light-transmitting portion and the opposite end with a smaller light-transmitting portion. This asymmetric configuration creates a balanced weak zone distribution that improves display quality and eliminates viewing angle-related defects, while maintaining a relatively simple overall structure that can be integrated into existing pixel designs.
Data Source
AI summary
The embodiments of the present disclosure relate to the field of display technology, and in particular to a display substrate, a display panel, and a display device. The display substrate includes a first electrode, a first wire, and a second wire; the first electrode is provided with a plurality of slits; the first wire is provided on a side of the first electrode, and a first gap is provided between the first wire and the first electrode, and the first wire being electrically connected to the first electrode; a second wire provided on a side of the first electrode away from the first wire, and a second gap being provided between the second wire and the first electrode; wherein each of the slits is provided with a first end and a second end opposed to each other, and the first end is close to the first wire, and the second end is close to the second wire, and a light-transmitting part of the first end is larger than a light-transmitting part of the second end. The electric field disorder of the first end is better than the electric field disorder of the second, so that the weak zone at the first end is larger than the weak zone at the second end. By increasing the light-transmitting part of the first end, the weak zone at the first end becomes smaller, thereby making the weak zone of the first end is basically the same as the weak zone of the second end.