Liquid crystal mixture, light cut-off component, preparation methods of liquid crystal mixture and light cut-off component as well as display device

A technology of mixture and liquid crystal, applied in the direction of optical components, optics, nonlinear optics, etc., can solve the problem that the wavelength range of reflected light is difficult to control, and achieve the effect of reducing the passage of blue light and reducing damage

Active Publication Date: 2016-06-08
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the number of stacked layers required for the dielectric film layer 104 is at least 10 layers, and the thickness of each layer must be strictly controlled, otherwise it is difficult to control the wavelength range of reflected light

Method used

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  • Liquid crystal mixture, light cut-off component, preparation methods of liquid crystal mixture and light cut-off component as well as display device
  • Liquid crystal mixture, light cut-off component, preparation methods of liquid crystal mixture and light cut-off component as well as display device
  • Liquid crystal mixture, light cut-off component, preparation methods of liquid crystal mixture and light cut-off component as well as display device

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Embodiment Construction

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Apparently, the described embodiments are some of the embodiments of the present disclosure, not all of them. Based on the described embodiments of the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative effort fall within the protection scope of the present disclosure.

[0036] Cholesteric phase is an important phase state of liquid crystal molecules. Such as figure 2 As shown, in the cholesteric phase, the liquid crystal molecules are arranged in layers and have a continuous helical structure. Cholesteric liquid crystal molecules can selectively reflect incident light (similar to Bragg ref...

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Abstract

The invention discloses a liquid crystal mixture and a preparation method thereof, a light cut-off component and a preparation method thereof as well as a display device. The liquid crystal mixture comprises liquid crystal molecules and a chiral additive with certain concentration, wherein the chiral additive is mixed among the liquid crystal molecules, the liquid crystal molecules are in a cholesteric phase, so that the liquid crystal mixture reflects light waves in a reflection wavelength range. According to the embodiment of the invention, a light wave reflection band is controlled through design of a liquid crystal structure, so that passing of the light waves in the reflection band is reduced directly and effectively. For example, the band of reflected blue light can be controlled, so that passing of the blue light is reduced directly and effectively, and possible harm of the blue light to eyes is reduced.

Description

technical field [0001] Embodiments of the present disclosure relate to a liquid crystal mixture and a preparation method thereof, a light cutoff member and a preparation method thereof, a wearable display device, and other display devices. Background technique [0002] Blue light is a type of high-energy visible light that can cause photochemical damage to the retina of the eye. Blue light is widely present in artificial light sources. In liquid crystal display panels, the backlight structure tends to be lighter and thinner. At present, the LED backlight design is mainly used, and the LED chips in it emit a large amount of blue light. In mobile products and smart wearable products, in order to improve outdoor readability, a high-brightness backlight structure is often used, which emits a higher intensity of blue light. Therefore, there is a need to reduce the possible damage to the eyes caused by the blue light in the backlight. [0003] In the prior art, long-pass cut-of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/137G02F1/139G02F1/1335
CPCG02F1/133528G02F1/13718G02F1/1396G02B5/3025G02B27/0172G02B2027/0178G02F1/133543G02F1/13363
Inventor 李文波
Owner BOE TECH GRP CO LTD
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