Liquid crystal display method and liquid crystal display device

A liquid crystal display and equipment technology, applied in the field of liquid crystal display methods and liquid crystal display equipment, can solve the problems of reducing light energy utilization rate, color shift, and light emission performance deterioration, so as to improve light energy utilization rate and reduce color shift phenomenon , Improve the effect of optical consistency

Active Publication Date: 2018-07-06
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing liquid crystal display devices have some inconsistencies when displaying light of different wavelengths (correspondingly, light of different colors)
On the other hand, existing liquid crystal display devices use color filters to achieve color display, which reduces the utilization rate of light energy, resulting in poor light emission performance and serious color shift of liquid crystal display devices.

Method used

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  • Liquid crystal display method and liquid crystal display device
  • Liquid crystal display method and liquid crystal display device
  • Liquid crystal display method and liquid crystal display device

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Embodiment Construction

[0034] Various embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Here, it is to be noted that, in the drawings, the same reference numerals are assigned to components having substantially the same or similar structures and functions, and repeated descriptions about them will be omitted.

[0035] like figure 1 As shown in , schematically shows the optical device stack diagram of the liquid crystal display device in the prior art.

[0036] White LEDs are arranged on the sides of the light guide plate (for example, any combination of left, right, upper, and lower) and serve as a backlight source to generate white light. The light guide plate turns the white light emitted by the white LED into uniform white light. In other words, the light guide plate and white LED work together as a surface light source, providing white light as a backlight.

[0037] White light is incident on the lower polarizer, and only w...

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Abstract

The invention discloses a liquid crystal display method and device. The liquid crystal display method comprises the steps that ultraviolet light or near ultraviolet blue light is adopted to generate backlight; a first polarizing film is utilized, so that polarized light, in the first polarization direction, in the backlight penetrates through the first polarizing film; control voltage is applied to a liquid crystal layer, so that the polarization direction of the polarized light in the first polarization direction is made to deflect; a second polarizing film is utilized, so that the polarized light, in the second polarization direction, of the polarized light with the deflected polarization direction penetrates through the second polarizing film in a component mode; the polarized light which is in the second polarization direction and penetrates through the second polarizing film is utilized for bombing a fluorescent screen, and the fluorescent screen generates visible light for watching by a watcher. As the ultraviolet light or near ultraviolet blue light has relatively narrower wavelength range compared with white light, optical devices in the liquid crystal display device can represent good optical coherence.

Description

technical field [0001] The present invention relates to the technical field of liquid crystal display, and more particularly relates to a liquid crystal display method and a liquid crystal display device. Background technique [0002] Compared with traditional CRT display devices, liquid crystal display devices have a revolutionary advantage in volume. However, on the other hand, the color display performance of existing liquid crystal display devices is not as good as that of traditional CRT display devices. [0003] Traditional CRT display devices emit light by bombarding phosphors with electron beams. This is a self-illuminating display technology, which has the advantages of large color gamut, large viewing angle, and small color shift under large viewing angles. These advantages of traditional CRT display devices just become the shortcomings of existing liquid crystal display devices. [0004] For existing liquid crystal display devices, white light LEDs are mostly us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335G02F1/13357
CPCG02F1/1335G02F1/133528G02F1/133615
Inventor 张振华野村良太许芳
Owner LENOVO (BEIJING) LTD
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