Display Panel Uneven Electrodes for Wide-Angle Viewing
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Solution Overview
Problem
Conventional display panels face challenges in enhancing display effects at wide viewing angles while maintaining a high aperture ratio, high light transmittance, and low power consumption, particularly with multi-domain designs that increase the non-transparent area and complexity.
Innovation Solution
A display panel design featuring a first substrate with a pixel electrode layer and a light-modulating medium layer, where an uneven surface is created by an organic insulating layer, allowing different distances between the pixel and common electrode layers, thereby varying deflection angles of the light-modulating medium to improve viewing angles without increasing domains or components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multi-domain design is used to enhance display effect at wide viewing angles, then viewing angle performance is improved, but aperture ratio decreases and power consumption increases
Solution Approach 1:
The patent applies local quality by creating an uneven surface on the pixel electrode layer through organic insulating layers of varying thicknesses. Different regions of the pixel electrode have different distances to the common electrode, forming multiple domains with different liquid crystal alignment orientations. This local variation in electrode distance enables wide viewing angle performance without increasing the number of physical domains or reducing aperture ratio.
Solution Approach 2:
The patent transitions from a two-dimensional planar electrode structure to a three-dimensional uneven surface structure by adding organic insulating layers of different thicknesses. This dimensional change creates vertical distance variations between pixel and common electrodes, enabling multi-domain effects without increasing horizontal domain count, thus preserving aperture ratio while improving viewing angles.
2Adaptability or versatility
If multi-domain design is used to enhance display effect at wide viewing angles, then viewing angle performance is improved, but power consumption increases
Solution Approach 1:
The patent creates local variations in electrode distance through organic insulating layers of different thicknesses, forming multiple domains with different liquid crystal orientations. This local quality approach enables wide viewing angle performance without requiring multiple independently controlled domains, thereby reducing power consumption compared to traditional multi-domain designs.
3Adaptability or versatility
If uneven surface is created by organic insulating layer, then deflection angles of light-modulating medium vary to improve viewing angles, but manufacturing complexity increases
Solution Approach 1:
The patent changes the thickness parameter of organic insulating layers to create an uneven surface on the pixel electrode layer. By controlling the thickness parameters of different insulating layer regions, the patent achieves different electrode distances and liquid crystal alignment orientations, enabling multi-domain effects through simple parameter variation rather than complex structural design.
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 design enhances display effects at wide viewing angles while maintaining a high aperture ratio, high light transmittance, and low power consumption by controlling the distance and orientation of branch electrodes within each pixel electrode.
Implementation Method 1
the first organic insulating layer causes a surface of the pixel electrode layer that is away from the first base to be uneven; or, the second substrate includes a second organic insulating layer disposed between the second base and the common electrode layer, and the second organic insulating layer causes a surface of the common electrode layer that is away from the second base to be uneven
Data Source
AI summary
A display panel and a display device are provided, featuring a first substrate with a first base and a pixel electrode layer on one side. A light-modulating medium layer is on one side of the pixel electrode layer, facing away from the first base. The second substrate, on one side of the light-modulating medium layer away from the first substrate, includes a second base and a common electrode layer facing the light-modulating medium layer. The first substrate includes a first organic insulating layer between the first base and the pixel electrode layer, causing a surface of the pixel electrode layer facing away from the first base to be uneven. Alternatively, the second substrate includes a second organic insulating layer between the second base and the common electrode layer, making the common electrode surface uneven. This design enhances display effects at wide angles while ensuring high aperture ratio and light transmittance.