Liquid crystal composition for view angle element, view angle element, display device capable of adjusting view angle, and liquid crystal display device
A technology of liquid crystal composition and adjustment element, which is applied in the direction of liquid crystal materials, optics, instruments, etc., can solve the problems of visual recognition of display images, narrow viewing angle, etc., and achieve the effects of good switching, excellent viewing angle adjustment function, and excellent viewing angle adjustment function
Pending Publication Date: 2021-02-02
JNC CORP +1
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However, on the other hand, there are also cases where, from the standpoint of confidentiality or privacy protection, it is required that only the person himself, that is, can only view the display image from a limited narrow angle range, and cannot view the display image from its surroundings. image, thus preventing peeping from the side, i.e. requiring a narrow viewing angle
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Embodiment 1～ Embodiment 3
[0295] A polyimide alignment film is formed on a glass substrate formed with an ITO (Indium Tin Oxide, indium tin oxide) electrode (thickness: about 60 nm), and the composition 1 to composition 3 are injected between the substrates to prepare A viewing angle switching layer is formed, thereby fabricating a viewing angle adjustment element. The transmittance at a viewing angle of 0° (front) and a viewing angle of 45° when a voltage was applied to the viewing angle switching layer was measured. The results are summarized in Table 4. In addition, in the table, d is the thickness of the viewing angle switching layer, and Δn is the optical anisotropy of the composition.
[0296] Table 4. Transmittance
[0297]
[0298] As shown in the results in Table 4, the transmittance does not change between when no voltage is applied and when a voltage is applied in the front side (viewing angle 0°), on the other hand, in the viewing angle direction of 45°, when a voltage is applied, the ...
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Abstract
The present invention addresses the problem of providing a liquid crystal composition for a viewing angle adjustment element, a viewing angle adjustment element, a display device capable of adjustinga viewing angle, and a liquid crystal display device. The liquid crystal composition for a viewing angle adjustment element is capable of obtaining a display device which has an excellent viewing angle adjustment function and is capable of satisfactorily switching between a wide viewing angle and a narrow viewing angle. The viewing angle adjusting element and the display device capable of adjusting the viewing angle can well switch between a wide viewing angle and a narrow viewing angle. A liquid crystal composition for use in a viewing angle switching layer of an element capable of adjustinga viewing angle, which contains a specific compound as component A, may further contain a specific compound as component B, or may further contain a specific compound as component C.
Description
technical field [0001] The present invention relates to a liquid crystal composition used in a viewing angle switching layer of an element capable of adjusting a viewing angle (liquid crystal composition for a viewing angle adjusting element), a viewing angle adjusting element containing the composition, a display device capable of adjusting a viewing angle, and a liquid crystal display device. Background technique [0002] Regarding display devices such as liquid crystal display devices, generally, the position of the viewer is not fixed, and therefore, it is required to be able to view a display image from all angles, that is, a wide viewing angle is required. However, on the other hand, there are also cases where, from the standpoint of confidentiality or privacy protection, it is required that only the person himself, that is, can only view the display image from a limited narrow angle range, and cannot view the display image from its surroundings. image, thereby preven...
Claims
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IPC IPC(8): C09K19/44C09K19/46G02F1/1333G02F1/1347G02F1/13
CPCC09K19/44C09K19/46G02F1/1323G02F1/1347G02F1/1333
Inventor 蜂屋诚
Owner JNC CORP