Compound, liquid crystal composition, and liquid crystal display element
A technology of liquid crystal compositions and compounds, applied in the directions of liquid crystal materials, chemical instruments and methods, instruments, etc., can solve the problems of insufficient tilt formation, deterioration of response speed, poor burn-in display, etc., and achieve fast polymerization speed, high tilt stability, etc. performance, excellent display quality
Pending Publication Date: 2021-10-12
DIC CORP
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Problems solved by technology
Therefore, in the UV irradiation process in the manufacture of PSA-type and PSVA-type liquid crystal display elements, the polymerizable compound cannot be sufficiently polymerized, and many polymerizable compounds remain.
As a result, image sticking due to insufficient tilt formation, poor response speed, and poor orientation was confirmed. In addition, it was also confirmed that the remaining polymerizable compound slowly polymerized during driving to change the tilt, which caused a phenomenon called burn-in ( IS) display is bad
Method used
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Embodiment 1～27
[0935] 0.4 parts by mass of Formula (RM-1) and 0.3 parts by mass of Formula (RM-12) were added to 100 parts by mass of the base composition LC-001 as a polymerizable compound to prepare a liquid crystal composition containing a polymerizable compound and evaluate voltage retention Rate, amount of change in pretilt angle, and low-temperature storage properties were set to Example 1. Examples 2-27 were carried out using the same method. The results are shown in Table 2 below.
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Abstract
The invention provides a compound, a liquid crystal composition and a liquid crystal display element. The present invention addresses the problem of providing a liquid crystal display element capable of achieving high-speed responsiveness and a high voltage holding ratio (VHR), a liquid crystal composition containing a polymerizable compound and capable of achieving fast polymerization velocity, adaptive tilt formation, high tilt stability, and a high voltage holding ratio (VHR), a PSA-type or PSVA-type liquid crystal display element in which screen burn-in (IS) is sufficiently suppressed or does not occur and which utilizes the composition; and a compound which is suitable for preparing the liquid crystal composition containing the polymerizable compound. As a solution, the invention provides: a compound having a structure represented by general formula (Y) in the molecule; a liquid crystal composition containing the compound; and an element using the liquid crystal composition. The chemical formula 1 is shown in the specification.
Description
technical field [0001] The present invention relates to a liquid crystal composition, a liquid crystal display device using the same, and a polymerizable compound. Background technique [0002] In liquid crystal display elements using a liquid crystal composition having a negative dielectric constant anisotropy Δε, PSA and PSVA type liquid crystal TVs, liquid crystal monitors, etc. are becoming popular, and as a liquid crystal composition suitable for these applications, Patent Document 1 , Patent Document 2, Patent Document 3, Patent Document 4, Patent Document 5, etc. disclose various polymerizable compounds and liquid crystal compositions containing them. [0003] However, the characteristics of liquid crystal compositions containing polymerizable compounds that have been commonly used so far are not sufficient for high-definition liquid crystal TVs such as 4K and 8K. Specifically, 4K and 8K liquid crystal display elements require high-definition pixels, and a considerab...
Claims
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IPC IPC(8): C09K19/42G02F1/13
CPCC09K19/42G02F1/13
Inventor 门本丰林正直杉山弘和井之上雄一野吕大树楠本哲生
Owner DIC CORP
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