Mixed liquid crystal composition for STN-LCD
A technology of liquid crystal composition and mixed liquid crystal, applied in liquid crystal materials, optics, instruments, etc., can solve the problems of restricting a wide range of applications, not being able to meet the needs of LCD manufacturers, and narrow anisotropy coverage
Active Publication Date: 2012-12-12
HEBEI MAIERSTON ELECTRONICS MATERIAL
View PDF1 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, according to its specific implementation, it is found that the threshold voltage and refractive index anisotropy coverage of the liquid crystal composition is narrow, which cannot well meet the needs of LCD manufacturers, which limits its wider application
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
example 1
[0115] Structural symbols
example 2
[0117] Structural symbols
example 3
[0119] Structural symbols
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a mixed crystal compound used for STN-LCD. The mixture contains 1 to 65 percent of at least one compound expressed by a general expression (I) as a first component as well as 1 to 55 percent of at least one compound expressed by a general expression (II) as a second component; and the rest is selected from the compounds expressed by at least two general expressions from ageneral expression (IV) to a general expression (VIII) as a fourth component; the compound has the advantages of excellent gradient characteristic, enough wide nematic phase temperature range and refractive index anisotropy range, small viscosity and fast response speed; moreover, the dependency of the refractive index anisotropy on the temperature can meet the demands of a high grade STN-LCD apparatus and can meet the thickness demand of an STN-LCD box with a larger range.
Description
technical field [0001] The invention relates to a liquid crystal composition for liquid crystal display, specifically, the invention relates to a mixed liquid crystal composition for STN-LCD. Background technique [0002] In 1888, Austrian scientists discovered liquid crystals. In the 1970s, Helfrich and Schadt combined the photoelectric effect of twisted nematic liquid crystals with integrated circuits to make liquid crystal devices and realize the industrialization of liquid crystal materials. Such liquid crystal materials are known as twisted nematic liquid crystal display (TN-LCD) materials. In the mid-1980s, the super-twisted nematic liquid crystal display (STN-LCD) material was successfully developed. Later, bistable technology and TFT-LCD display mode were developed. However, due to cost constraints, the promotion and application of the two have been greatly restricted. At present, STN-LCD still occupies a dominant position in applications in more fields. [0003] ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C09K19/42G02F1/13
Inventor 陈元模仲锡军
Owner HEBEI MAIERSTON ELECTRONICS MATERIAL