CN109343272A - Liquid crystal display - Google Patents
Liquid crystal display Download PDFInfo
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- CN109343272A CN109343272A CN201811359404.4A CN201811359404A CN109343272A CN 109343272 A CN109343272 A CN 109343272A CN 201811359404 A CN201811359404 A CN 201811359404A CN 109343272 A CN109343272 A CN 109343272A
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- substrate
- liquid crystal
- layer
- crystal display
- transparency conducting
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13731—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on a field-induced phase transition
- G02F1/13737—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on a field-induced phase transition in liquid crystals doped with a pleochroic dye
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
- G02F1/133723—Polyimide, polyamide-imide
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of liquid crystal displays, and wherein liquid crystal display includes first substrate；The second substrate is oppositely arranged with the first substrate；Dye solution crystal layer is sealed between the first substrate and the second substrate；Backlight is placed in side or the second substrate side far from the first substrate of the first substrate far from the second substrate；Wherein, the dye solution crystal layer is filled with liquid crystal material, dichroic dye and chiral agent；The backlight includes brightness enhancement film.The advantage of the invention is that by the way that dichroic dye is added in liquid crystal material, the feature of the light of part colours is can absorb using dichroic dye, and then realize colored display, it does not need that polaroid and colored filter in the prior art is arranged, the brightness enhancement film in backlight is utilized simultaneously, the polarization direction of emergent light can be made identical as brightness enhancement film axial direction, improve reflectivity.
Description
Technical field
The present invention relates to field of liquid crystal display, in particular to a kind of liquid crystal display.
Background technique
The continuous development of modern industry makes energy shortage problem become to become increasingly conspicuous with problem of environmental pollution, environment and the energy
Problem has been to be concerned by more and more people and worries.How to develop the product of more energy-saving and environmental protection is various industries practitioner
The problem of facing is required, similarly, liquid crystal display industry is also faced with identical problem.How to develop more energy saving, high
The liquid crystal display of effect is always the problem that research staff constantly thinks deeply.
Liquid crystal display device (LCD, Liquid Crystal Display) has thin fuselage, power saving, radiationless etc. numerous
Advantage is widely used.Liquid crystal display device on existing market is largely backlight liquid crystal display device, packet
Include liquid crystal display panel and backlight group (backlight module).The working principle of liquid crystal display panel is parallel in two panels
Dye liquid crystal is placed in glass substrate, controls dye liquid crystal change side by applying driving voltage on two panels glass substrate
To the light refraction of backlight module is come out picture.
Usual liquid crystal display panel is by color filter film (CF, Color Filter) substrate, thin film transistor (TFT) (TFT, Thin
Film Transistor) substrate, the liquid crystal (LC, the Liquid that are sandwiched between colorized optical filtering ilm substrate and thin film transistor base plate
Crystal) material and sealing glue frame (Sealant) composition, moulding process generally comprise: leading portion array (Array) processing procedure is (thin
Film, yellow light, etching and stripping), middle section at box (Cell) processing procedure (thin film transistor base plate is bonded with colorized optical filtering ilm substrate) and
Back segment module group assembling processing procedure (driving circuit (IC) and printed circuit board press).Wherein, leading portion array (Array) processing procedure is mainly
Thin film transistor base plate is formed, in order to control the movement of dye liquid crystal；Middle section is at box (Cell) processing procedure mainly in film crystalline substance
Liquid crystal is added between body pipe substrate and colorized optical filtering ilm substrate；Back segment module group assembling processing procedure is mainly driving circuit pressing and printing
The integration of circuit board, and then dye liquid crystal rotation is driven, show image.
To realize full-color display, be typically employed in liquid crystal display panel a sheet glass (usually with thin film transistor (TFT) base
The upper glass that glass sheet is oppositely arranged, or thin film transistor base plate glass) on by coating, exposure, development method
Colorized optical filtering ilm substrate is made, using spacing color mixed principle, realizes full-color display.
But the colored filter in colorized optical filtering ilm substrate may only allow the light of subband to pass through, and need by
Polaroid polarizes light, so can decay to original about 33% by the light intensity after colored filter, this is
Lower one of the reason of LCD light efficiency at present is unfavorable for being produced into simultaneously as needing that polaroid and colored filter is arranged
This control.
Summary of the invention
The purpose of the present invention is to provide a kind of liquid crystal displays, by the way that dichroic dye is added in liquid crystal material, benefit
It can absorb the feature of the light of part colours with dichroic dye, and then realizes colored display, does not need to be arranged in the prior art
Polaroid and colored filter, while using the brightness enhancement film in backlight, polarization direction and the brightness enhancement film axis of emergent light can be made
It is identical to direction, improve reflectivity.
To achieve the goals above, the present invention provides a kind of liquid crystal displays, including first substrate；The second substrate, with
The first substrate is oppositely arranged；Dye solution crystal layer is sealed between the first substrate and the second substrate；Backlight,
It is placed in side or the second substrate side far from the first substrate of the first substrate far from the second substrate；Its
In, the dye solution crystal layer is filled with liquid crystal material, dichroic dye and chiral agent；The backlight includes brightness enhancement film.
Further, side or described second of the first substrate far from the second substrate is arranged in the brightness enhancement film
Side of the substrate far from the first substrate；The backlight is additionally provided with brightening piece, is set in the brightness enhancement film；Diffuser plate, if
In on the brightening piece；Light guide plate is set on the diffuser plate；Reflecting plate is set on the light guide plate.
Further, the first substrate and the second substrate are rigid transparent substrate or flexible transparent substrate.
Further, liquid crystal display further includes the first transparency conducting layer, is set to the first substrate towards described second
The side of substrate；First alignment layer is set on first transparency conducting layer；Second transparency conducting layer is set to second base
Plate is towards the side of the first substrate；Second orientation layer is set on second transparency conducting layer；Dye solution crystal layer position
Between the first alignment layer and the second orientation layer.
Further, the first alignment layer and the second orientation layer are Kapton.
Further, first transparency conducting layer and second transparency conducting layer are indium tin oxide layer.
Further, the first alignment layer and the second orientation layer are horizontal alignment.
Further, the first alignment layer and the second orientation layer all have respective differently- oriented directivity, wherein described
There is an angle, the angle is greater than 0 ° small between the differently- oriented directivity of first alignment layer and the differently- oriented directivity of the second orientation layer
In 180 °.
Further, the material in the dyeing liquid crystal layer is black pigment liquid crystal.
Further, the material in the dyeing liquid crystal layer is blue pigment liquid crystal.
The invention has the advantages that liquid crystal display of the invention, it can be with the dichroic dye of specific absorption spectrum by having
It is added into liquid crystal material, forms the dye liquid crystal of the light of absorbable predetermined wavelength range, the light that backlight issues is carried out
Selective absorbing, to provide color displays while utilize the brightness enhancement film in backlight, can make the polarization direction of emergent light with
Brightness enhancement film axial direction is identical, improves reflectivity.
Detailed description of the invention
The present invention is further explained with reference to the accompanying drawings and examples.
Fig. 1 is liquid crystal display illuminated state schematic diagram in embodiment.
Fig. 2 is liquid crystal display dark-state schematic diagram in embodiment.
Fig. 3 is no applied voltage liquid crystal arrangement schematic diagram in embodiment.
Fig. 4 is to apply liquid crystal arrangement schematic diagram after voltage in embodiment.
In figure
110 liquid crystal displays；1 first substrate；
2 the second substrates；
3 dye solution crystal layers；4 backlights；
101 first transparency conducting layers；102 first alignment layers；
201 second transparency conducting layers；202 second orientation layers；
31 liquid crystal materials；32 dichroic dyes；
33 chiral agents；
41 brightness enhancement films；42 reflecting plates；
43 light guide plates；44 diffuser plates；
45 brightening pieces；
Specific embodiment
The explanation of following embodiment is to can be used to the particular implementation of implementation to illustrate the present invention with reference to additional schema
Example.Direction term that the present invention is previously mentioned, such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom" etc. are only
With reference to the direction of annexed drawings.Therefore, the direction term used is to illustrate and understand the present invention, rather than to limit this hair
It is bright.
Embodiment
As shown in Figure 1 and Figure 2, in the present embodiment, liquid crystal display 110 of the invention, including first substrate 1, the second substrate
2, dye solution crystal layer 3, backlight 4.The first substrate 1 and the second substrate 2 are oppositely arranged.The dye solution crystal layer 3 is close
It is encapsulated between the first substrate 1 and the second substrate 2.The backlight 4 is set to the side of emergent light, specifically, described
Backlight 4 can be set in side of the first substrate 1 far from the second substrate 2, also can be set in second base
Side of the plate 2 far from the first substrate 1.
As shown in Figures 1 to 4, the dye solution crystal layer 3 is by doped liquid crystal material 31, dichroic dye 32 and chiral agent 33
Dye liquid crystal constitute, the dichroic dye 32 to luminous ray have selective absorbing effect, when luminous ray progress side
To it is vertical with 32 long axis of dichroic dye when, dichroic dye 32 to luminous ray have absorption.
The backlight 4 includes brightness enhancement film 41, brightening piece 42, diffuser plate 43, light guide plate 44 and reflecting plate 45.Wherein,
The brightness enhancement film 41 is located at side of the second substrate 2 far from the first substrate 1, or separate positioned at the first substrate 1
The side of the second substrate 2.The brightening piece 42, the diffuser plate 43, the light guide plate 44 are successively set on the blast
On film 41.As shown in Figure 1 and Figure 2, liquid crystal display 110 of the invention further includes the first transparency conducting layer 101, first alignment layer
102, the second transparency conducting layer 201, second orientation layer 202.Wherein, first transparency conducting layer 101 is set to first base
Towards the side of the second substrate 2, the first alignment layer 102 is set on first transparency conducting layer 101 plate 1, described
Second transparency conducting layer 201 is set to the second substrate 2 towards the side of the first substrate 1, and the second orientation layer 202 is set
In on second transparency conducting layer 201.The dye solution crystal layer 3 is set to the first alignment layer 102 and second orientation layer 202
Between.
In order to increase display effect, in the present embodiment, first transparency conducting layer 101 and second transparency conducting layer
201 be indium tin oxide layer, and the first alignment layer 102 and the second orientation layer 202 are horizontal alignment.Specifically, first
Oriented layer 102 and second orientation layer 202 are the antiparallel planar orientation layer for having friction effect, the first alignment layer 102 and institute
It states second orientation layer 202 and all has respective differently- oriented directivity, wherein the differently- oriented directivity of the first alignment layer 102 and described
There is an angle, the angle is greater than 0 ° and less than 180 °, so that the dye liquid crystal between the differently- oriented directivity of two oriented layer 202
Dye liquid crystal forms nematic twisted arrangement structure (shown in Figure 3) in the case where no driving voltage acts in layer 3, described
The windup-degree of dye liquid crystal is greater than or equal to 90 ° and less than 180 ° in dye solution crystal layer 3.
Since the first alignment layer 102 and the second orientation layer 202 are the antiparallel planar orientation for having friction effect
Layer can make the dye solution crystal layer form P state structure, in the dye solution crystal layer 3 mixed with the chiral agent 33 and the dye
The brilliant uniformly mixing of feed liquid, as shown in figure 3, when the liquid crystal display 110 containing the dye liquid crystal is not powered, imitates without electric field
At once, P state is presented in the dye liquid crystal, has absorbability, the liquid crystal display 110 to the incident light perpendicular to transparent substrate
For dark-state.As shown in figure 4, the dye liquid crystal exists when applying voltage on the first substrate 1 and the second substrate 2
Topple under electric field action, due to the presence of the chiral agent 33, can be distorted arrangement when toppling over, the drive dyestuff
Molecule also generates horizontal and distortion arrangement, to absorb to incident ray.Liquid crystal is arranged along direction of an electric field at this time, to light
It absorbs less, shows the H state of high transparency, high brightness, the liquid crystal display 110 is illuminated state.
In order to improve the stability of liquid crystal display 110 in the present embodiment, all round closure of the dye solution crystal layer 3 has envelope
Side glue.
The present invention does not use polaroid, improves light transmittance and light efficiency by adding brightness enhancement film 41 in backlight 4
Rate, while the design of polaroid can not be such that material and polaroid processing procedure cost declines very, moreover it is possible to it reduces in manufacturing process
Step, to improve the efficiency and yield of production.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (10)
1. a kind of liquid crystal display, which is characterized in that including
First substrate；
The second substrate is oppositely arranged with the first substrate；
Dye solution crystal layer is sealed between the first substrate and the second substrate；
Backlight is placed in side or the second substrate of the first substrate far from the second substrate far from first base
The side of plate；
Wherein, the dye solution crystal layer is filled with liquid crystal material, dichroic dye and chiral agent；The backlight includes blast
Film.
2. liquid crystal display as described in claim 1, which is characterized in that the brightness enhancement film setting is separate in the first substrate
The side of the side of the second substrate or the second substrate far from the first substrate；
The backlight is additionally provided with:
Brightening piece is set in the brightness enhancement film；
Diffuser plate is set on the brightening piece；
Light guide plate is set on the diffuser plate；
Reflecting plate is set on the light guide plate.
3. liquid crystal display as described in claim 1, which is characterized in that
The first substrate and the second substrate are rigid transparent substrate or flexible transparent substrate.
4. liquid crystal display as described in claim 1, which is characterized in that further include
First transparency conducting layer, set on the first substrate towards the side of the second substrate；
First alignment layer is set on first transparency conducting layer；
Second transparency conducting layer, set on the second substrate towards the side of the first substrate；
Second orientation layer is set on second transparency conducting layer；
The dye solution crystal layer is between the first alignment layer and the second orientation layer.
5. liquid crystal display as claimed in claim 4, which is characterized in that
The first alignment layer and the second orientation layer are Kapton.
6. liquid crystal display as claimed in claim 4, which is characterized in that
First transparency conducting layer and second transparency conducting layer are indium tin oxide layer.
7. liquid crystal display as claimed in claim 4, which is characterized in that
The first alignment layer and the second orientation layer are horizontal alignment.
8. liquid crystal display as claimed in claim 4, which is characterized in that
The first alignment layer and the second orientation layer all have respective differently- oriented directivity, wherein the first alignment layer
There is an angle, the angle is greater than 0 ° less than 180 ° between differently- oriented directivity and the differently- oriented directivity of the second orientation layer.
9. liquid crystal display as described in claim 1, which is characterized in that
Material in the dyeing liquid crystal layer is black pigment liquid crystal.
10. liquid crystal display as described in claim 1, which is characterized in that
Material in the dyeing liquid crystal layer is blue pigment liquid crystal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811359404.4A CN109343272A (en) | 2018-11-15 | 2018-11-15 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811359404.4A CN109343272A (en) | 2018-11-15 | 2018-11-15 | Liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109343272A true CN109343272A (en) | 2019-02-15 |
Family
ID=65315323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811359404.4A Pending CN109343272A (en) | 2018-11-15 | 2018-11-15 | Liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109343272A (en) |
Citations (8)
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|---|---|---|---|---|
| CN1536405A (en) * | 2003-04-07 | 2004-10-13 | 友达光电股份有限公司 | Liquid cfystal display panel and liquid crystal display by using said panel |
| CN103728765A (en) * | 2013-11-28 | 2014-04-16 | 深圳市华星光电技术有限公司 | Color liquid crystal display panel and manufacturing method thereof |
| CN103728758A (en) * | 2013-11-28 | 2014-04-16 | 深圳市华星光电技术有限公司 | Color liquid crystal display panel and manufacturing method thereof |
| CN103969877A (en) * | 2014-05-08 | 2014-08-06 | 合肥工业大学 | Dye liquid crystal display device |
| CN204086744U (en) * | 2014-07-31 | 2015-01-07 | 江门亿都电子科技有限公司 | A kind of Transparence Display LCD without polaroid |
| US20170139241A1 (en) * | 2015-11-17 | 2017-05-18 | Electronics And Telecommunications Research Institute | Display device and method of driving the same |
| KR20170086729A (en) * | 2016-01-18 | 2017-07-27 | 삼성디스플레이 주식회사 | Liquid crystal display |
| CN207992634U (en) * | 2018-02-01 | 2018-10-19 | 重庆共泰科技股份有限公司 | Optimize device at a kind of new type superthin back light |
-
2018
- 2018-11-15 CN CN201811359404.4A patent/CN109343272A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1536405A (en) * | 2003-04-07 | 2004-10-13 | 友达光电股份有限公司 | Liquid cfystal display panel and liquid crystal display by using said panel |
| CN103728765A (en) * | 2013-11-28 | 2014-04-16 | 深圳市华星光电技术有限公司 | Color liquid crystal display panel and manufacturing method thereof |
| CN103728758A (en) * | 2013-11-28 | 2014-04-16 | 深圳市华星光电技术有限公司 | Color liquid crystal display panel and manufacturing method thereof |
| CN103969877A (en) * | 2014-05-08 | 2014-08-06 | 合肥工业大学 | Dye liquid crystal display device |
| CN204086744U (en) * | 2014-07-31 | 2015-01-07 | 江门亿都电子科技有限公司 | A kind of Transparence Display LCD without polaroid |
| US20170139241A1 (en) * | 2015-11-17 | 2017-05-18 | Electronics And Telecommunications Research Institute | Display device and method of driving the same |
| KR20170086729A (en) * | 2016-01-18 | 2017-07-27 | 삼성디스플레이 주식회사 | Liquid crystal display |
| CN207992634U (en) * | 2018-02-01 | 2018-10-19 | 重庆共泰科技股份有限公司 | Optimize device at a kind of new type superthin back light |
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Application publication date: 20190215 |