Display device

A display device and display area technology, applied in nonlinear optics, instruments, optics, etc., can solve the problem of high driving voltage and achieve the effect of maintaining luminous efficiency

Active Publication Date: 2013-10-30
INNOCOM TECH SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the driving voltage required by blue-phase liquid crystals is relatively high, which has become one of the problems to be overcome in the development of blue-phase liquid crystal display devices.

Method used

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Embodiment Construction

[0045] In order to have a better understanding of the above-mentioned and other aspects of the present invention, the preferred embodiments are specifically cited below, together with the accompanying drawings, and described in detail as follows:

[0046] The following describes the problems and solutions of the high operating bias of the blue-phase liquid crystals known to the inventors, and the display device developed by applying the solutions.

[0047] When the blue-phase liquid crystal display uses a bias voltage to generate an electric field, the equivalent refractive index ellipsoid of the blue-phase liquid crystal becomes anisotropic, resulting in a birefringence (birefringence) effect. The formula for the birefringence is Δn=λKE 2 , where λ is the wavelength of light, K is the Kerr coefficient, and E is the electric field generated by applying a bias voltage. Therefore, if you want to reduce the applied bias voltage, you can start by increasing the Kerr coefficient K....

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Abstract

The invention provides a display device which comprises a first substrate, a second substrate, a blue phase liquid crystal layer and an optical element. The first substrate is provided with a display region. The first substrate is opposite to the second substrate. The blue phase liquid crystal layer is arranged between the first substrate and the second substrate and selectively reflects light, a frequency spectrum peak value of the light is located in a cross interval, and the cross interval is an interval with light wavelength ranging from 480nm to 520nm. The optical element is provided with at least one of functions of adjusting the phase position of the light and absorbing the light.

Description

technical field [0001] The present invention relates to a display device, and in particular to a display device that selectively reflects light with a specific spectral peak. Background technique [0002] In recent years, liquid crystal displays have been widely used in display screens of electronic products. LCDs come in many different forms, including twisted nematic (twisted nematic), super twisted nematic (STN), in-plane switching (IPS), multi-domain vertical alignment , MVA) etc. When a voltage is applied, the rotation direction of the liquid crystal molecules can be controlled, and the polarization direction of the light can be adjusted, thereby affecting the light throughput and causing the contrast between the bright state and the dark state as a display result. [0003] In order to control the orientation of the liquid crystal molecules, traditional displays using nematic liquid crystals often use an alignment treatment on the surface of the substrate to control t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02F1/137
Inventor 陈建宏庄璧荥王诠中
Owner INNOCOM TECH SHENZHEN
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