Segmented Electrode LCD With Continuous Orientation For Wide Viewing Angle
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing liquid crystal display devices face challenges in achieving high-definition pixels with wide viewing angle properties while maintaining efficient orientation segmenting processing, as segmented orientation methods often result in discontinuous liquid crystal orientation, leading to disclination and decreased display quality.
Innovation Solution
A liquid crystal display device with a matrix arrangement of pixels featuring segmented electrodes and orientations, where adjacent pixels share the same electrode and orientation structures, and the orientation is processed using a wide pattern that covers neighboring regions through photo-orientation processing, allowing for efficient and continuous orientation segmenting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If segmented orientation method is used to achieve wide viewing angle property, then viewing angle property is improved, but liquid crystal orientation becomes discontinuous at boundaries, generating disclination lines that deteriorate contrast and luminance
Solution Approach 1:
The patent implements feedback by making the orientation pattern of adjacent pixels depend on the electrode pattern of the reference pixel. Specifically, the orientation pattern is determined based on feedback from the electrode configuration, ensuring that liquid crystal orientations at boundaries between pixels are continuous, thereby preventing disclination lines while maintaining segmented orientation benefits for viewing angle property
Solution Approach 2:
The patent applies homogeneity by ensuring that liquid crystal orientations at boundaries between adjacent pixels are made uniform and continuous. The orientation patterns are designed to match at boundaries, creating homogeneous orientation conditions that eliminate discontinuities and disclination lines, thus improving contrast and luminance uniformity
2Manufacturing precision
If high-definition pixels are implemented, then display quality is improved, but it becomes difficult to apply segmented orientation method due to pixel size constraints
Solution Approach 1:
The patent applies segmentation by dividing the pixel into multiple electrode regions (comb-like electrode structure segmented into two or four regions) and corresponding orientation regions. This segmentation allows the orientation pattern to be defined in a systematic way that scales to high-definition pixels, making the segmented orientation method applicable even when pixel sizes are reduced
Solution Approach 2:
The patent creates a universal orientation pattern design that can be applied across different pixel densities and sizes. The orientation pattern is defined relative to the electrode structure rather than absolute pixel dimensions, making it universally applicable to both standard and high-definition displays without requiring redesign
3Manufacturing precision
If photo-orientation processing is used, then orientation uniformity is improved and rubbing-related defects are eliminated, but relatively high energy irradiation is required
Solution Approach 1:
The patent optimizes photo-orientation processing parameters by designing specific orientation film materials and adjusting irradiation conditions (wavelength, intensity, duration) to reduce the total energy required. The orientation film is formulated to be highly responsive to UV irradiation, achieving effective orientation with lower energy input while maintaining high orientation uniformity
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 approach maintains a wide viewing angle property even with high-definition pixels, reduces disclination, and improves display quality by minimizing discontinuous orientation and electrode-induced unevenness, enabling efficient orientation processing and shared mask usage for segmented orientations.
Implementation Method 1
the photo-orientation processing by performing irradiation of UV (Ultra Violet) rays. Especially, the photo-orientation processing is a process that requires no vacuum processing
Implementation Method 2
changes the coordinate position of the molecules or couples those by a molecule level according to the incident direction of the irradiated light and the polarization direction thereof
Data Source
AI summary
Provided is a liquid crystal display device and a method for producing the same, wherein one electrode is composed of four segmented electrodes (P1, P2, P3, P4) and has segmented orientations (O1, O2, O3, O4), and the segmented electrode (p4) has the same structure as that of segmented electrodes (P′4) of adjacent pixels (at three positions of right, below, and lower right). An area surrounding four segmented electrodes (P4 (P′4)) that are present in adjacent four pixels having the same structure is processed with the same segmented orientation (O4). With this configuration, excellent viewing angle properties are maintained even with high-definition pixels, and efficient processing with segmented orientations can be performed.