CN108205216A - A kind of high light transmitting liquid crystal display screen - Google Patents
A kind of high light transmitting liquid crystal display screen Download PDFInfo
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- CN108205216A CN108205216A CN201810055512.6A CN201810055512A CN108205216A CN 108205216 A CN108205216 A CN 108205216A CN 201810055512 A CN201810055512 A CN 201810055512A CN 108205216 A CN108205216 A CN 108205216A
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- liquid crystal
- display screen
- polaroid
- crystal display
- glass substrate
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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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
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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
- G02F1/133—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
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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
- G02F1/133—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
- G02F1/133528—Polarisers
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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
- G02F1/133—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
- G02F1/133603—Direct backlight with LEDs
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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
- G02F1/133—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
- G02F1/133605—Direct backlight including specially adapted reflectors
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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
- G02F1/133—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
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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
- G02F1/133—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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
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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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
Abstract
The invention discloses a kind of high light transmitting liquid crystal display screen, including surface cover, TFT modules, lower cover and the backlight being bonded successively down under；TFT modules include face polaroid, liquid crystal cell and bottom polaroid, and the face polaroid is arranged on the top of liquid crystal cell, and the bottom polaroid is arranged on the lower section of liquid crystal cell；Liquid crystal cell includes surface glass substrate, liquid crystal layer and bottom glass substrate, the face polarizer sheet sticking is in the top of surface glass substrate, the medial surface of surface glass substrate is provided with color filter film, the bottom polaroid is attached in the lower surface of the bottom glass substrate, the medial surface of the bottom glass substrate is provided with pixel electrode；The liquid crystal layer is set between color filter film and pixel electrode；The lower surface of surface cover and the upper surface of face polaroid are coated with AR antireflection film layers, and the thickness of AR antireflection film layers is 200nm~300nm.High light transmitting liquid crystal display screen provided by the invention has the characteristics that high transparency, high evenness, high contrast, wide viewing angle.
Description
Technical field
The present invention relates to liquid crystal display fields, and in particular to a kind of high light transmitting liquid crystal display screen.
Background technology
Liquid crystal display by continuous development, by be initially only able to display simple blackaandawhite characterumay figure TN STN type liquid crystal
Display can show various pictures that are abundant in content, having bright-coloured color effect to the TFT type liquid crystal displays of current mainstream
Face.
With popularizing for liquid crystal display applications, TFT types liquid crystal display is due to fast-response time, Yi Jigao
The display effect of image quality is liked by consumers in general, but the TFT LCD thickness low LCL of current curved surface is thin, causes
Light transmittance is poor；And the defects of there are in display effect, such as from different directions view up and down when, in some visual angle meetings
There are serious light leakage phenomena, the uniformity and contrast can be deteriorated, and the display effect of liquid crystal display be seriously affected, to consumer
Bring bad usage experience.
Invention content
In view of the deficiencies of the prior art, the purpose of the embodiment of the present invention is intended to provide a kind of energy with energy with high transparency
High light transmitting liquid crystal display screen.
To achieve the above object, the embodiment of the present invention adopts the following technical scheme that：
A kind of high light transmitting liquid crystal display screen, including be bonded successively down under surface cover, TFT modules, lower cover and
Backlight；
The TFT modules include face polaroid, liquid crystal cell and bottom polaroid, and the face polaroid is arranged on the upper of liquid crystal cell
Side, the bottom polaroid are arranged on the lower section of liquid crystal cell；The liquid crystal cell includes surface glass substrate, liquid crystal layer and bottom glass base
Plate, the face polarizer sheet sticking are provided with color filter film in the top of surface glass substrate, the medial surface of the surface glass substrate,
The bottom polaroid is attached in the lower surface of the bottom glass substrate, the medial surface of the bottom glass substrate is provided with pixel electricity
Pole；The liquid crystal layer is set between color filter film and pixel electrode；
The backlight includes optically focused film layer, basal layer and backlight outline border；Wherein optically focused film layer and basal layer be from top to bottom
It overlays in backlight outline border；The lower surface of the surface cover and the upper surface of the face polaroid are coated with AR antireflection films
Layer, the thickness of the AR antireflections film layer is 200nm~300nm..
As the improvement of said program, the surface cover, TFT modules and lower cover are bent into plane or predetermined arc respectively
Degree, the upper surface of the backlight is plane or curved surface and radian is consistent with the predetermined arc.
As the improvement of said program, between the surface cover and the TFT modules, the lower cover and the TFT moulds
It is the air gap of varying thickness between the lower cover and the TFT modules by being combined by two-sided glue frame between block.
As the improvement of said program, the thickness of the surface glass substrate is≤0.2mm, the thickness of the bottom glass substrate
For≤0.2mm.
As the improvement of said program, the face polaroid includes two layers of Triafol T and polyvinyl alcohol；Described two
The polyvinyl alcohol is set between layer Triafol T, is sequentially coated with positioned at the upper surface of the Triafol T on upper strata anti-
Dazzle coating, the AR antireflections film layer are set on the Anti Glare Coatings surface；And
The bottom polaroid includes two layers of Triafol T, polyvinyl alcohol and optical compensation films, two layers of three acetic acid
It is polyvinyl alcohol between cellulose, outermost layer is optical compensation films.
As the improvement of said program, the color filter film is designed using low latency amount, and retardation design value is set as
Less than 3nm；The retardation of the liquid crystal layer is set as 300~370nm；
The pixel electrode is horizontal cross grid strip structure, in the grizzly bar orientation of the pixel electrode and liquid crystal cell
Liquid crystal molecule orientation it is consistent.
As the improvement of said program, the extinction axis of the face polaroid and the direction of pixel electrode into less than 45° angle, and
With it is non-energized in the case of liquid crystal molecule long axis direction it is parallel；The extinction axis of the bottom polaroid and the direction of pixel electrode into
More than 45° angle, and with it is non-energized in the case of liquid crystal molecule long axis direction it is vertical.
As the improvement of said program, the optical compensation value of the optical compensation films is set as 270nm, optical compensation films z
Axis direction refractive index is set as Nz=0.5.
As the improvement of said program, the optically focused film layer includes dual brightness enhancement film and ultra micro away from polycrystalline structure
Brightness enhancement film, the dual brightness enhancement film and ultra micro are successively set on the basis from top to bottom away from polycrystalline structure brightness enhancement film
Layer top；The light transmission shaft of the light transmission shaft and bottom polaroid of the dual brightness enhancement film is parallel to each other.
As the improvement of said program, if display screen is transverse screen mode, axis of the ultra micro away from polycrystalline structure brightness enhancement film
It is parallel with the long side of display screen；If display screen is vertical screen mode, axis and display screen of the ultra micro away from polycrystalline structure brightness enhancement film
Short side it is parallel.
As the improvement of said program, the basal layer includes light emitting diode, light guide plate and diffusion barrier, the diffusion barrier
The ultra micro is successively set on from top to bottom with light guide plate away from below polycrystalline structure brightness enhancement film, the light emitting diode is placed on
The side of the light guide plate.
The advantageous effect of high light transmitting liquid crystal display screen provided in an embodiment of the present invention is：
By increase in the upper surface of the lower surface of surface cover and the face polaroid coated with thickness for 200nm~
The AR antireflection film layers of 300nm can effectively reduce the reflection on two surfaces, that is, reduce the reflection of display screen surface, so as to
Under strong light environment can also display content visible in detail, it is readable under strong light environment to improve liquid crystal display；Simultaneously
Optimize the offset of optical compensation films in the polaroid of bottom, match with the retardation values of liquid crystal layer, to improve liquid crystal display not
With the visible angle of view directions；Increase ultra micro to backlight again away from polycrystalline structure brightness enhancement film (BEF) and reflecting type polarizing to increase
Bright film (DBEF) combination, improves backlight surface brightness.It is preferred that by by the surface cover being bonded successively down under, TFT modules
Be bent into predetermined arc respectively with lower cover, and by the upper surface of backlight being bonded with the lower cover for curved surface and radian with
The predetermined arc is consistent, so that the surface cover being bonded successively down under, TFT modules, lower cover and backlight are formed
Sandwich design effectively improve the uniformity of display screen；Make the high light transmitting liquid crystal display screen of the embodiment of the present invention there is high light transmission
The excellent properties such as rate, high evenness, high contrast, wide viewing angle, to improve product competitiveness in the market.
Description of the drawings
Fig. 1 is a kind of overall structure diagram of high light transmitting liquid crystal display screen provided in an embodiment of the present invention；
Fig. 2 is a kind of liquid crystal cell structure schematic diagram of high light transmitting liquid crystal display screen provided in an embodiment of the present invention；
Fig. 3 (a)~Fig. 3 (b) is using the prior art and a kind of high light transmitting liquid crystal display screen provided in an embodiment of the present invention
Contrast schematic diagram；
Fig. 4 is a kind of pixel electrode design diagram of high light transmitting liquid crystal display screen provided in an embodiment of the present invention；
Fig. 5 is a kind of face polaroid structure schematic diagram of high light transmitting liquid crystal display screen provided in an embodiment of the present invention；
Fig. 6 is a kind of bottom polaroid structure schematic diagram of high light transmitting liquid crystal display screen provided in an embodiment of the present invention；
Fig. 7 is a kind of backlight board structure schematic diagram of high light transmitting liquid crystal display screen provided in an embodiment of the present invention；
Fig. 8 is a kind of visual angle test chart of high light transmitting liquid crystal display screen provided in an embodiment of the present invention and current general skill
Art comparison diagram.
Reference numeral：101st, surface cover；100th, TFT modules；102nd, lower cover；200th, backlight；201st, backlight upper table
Face；1st, face polaroid；2nd, surface glass substrate；3rd, color filter film；4th, liquid crystal layer；5th, pixel electrode；6th, bottom glass substrate；7th, bottom
Polaroid；8th, dual brightness enhancement film (DBEF)；9th, ultra micro is away from polycrystalline structure brightness enhancement film (BEF)；10th, diffusion barrier；11st, it sends out
Optical diode；12nd, backlight outline border；13rd, light guide plate；14th, AR antireflections film layer；15th, Anti Glare Coatings；16th, Triafol T
(TAC)；17th, polyvinyl alcohol (PVA)；18th, optical compensation films.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
Attached drawing, the technical solution of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair
Bright part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, ordinary skill
Personnel's all other embodiments obtained, shall fall within the protection scope of the present invention.
Unless otherwise defined, technical term or scientific terminology used herein should be in fields of the present invention and have
The ordinary meaning that the personage of general technical ability is understood.Used in present patent application specification and claims " the
One ", " second " and similar word are not offered as any sequence, quantity or importance, and are used only to distinguish different
Component part.Equally, the similar word such as "one" or " one " does not indicate that quantity limits yet, but represents that there are at least one.
" connection " either the similar word such as " connected " is not limited to physics or mechanical connection, but can include electrically
Connection, it is either directly or indirect." on ", " under ", "left", "right" etc. are only used for representing relative position relation, work as quilt
After the absolute position of description object changes, then the relative position relation also correspondingly changes.
11st, as shown in Figure 1, a kind of high light transmitting liquid crystal display screen is present embodiments provided, including being bonded successively down under
Surface cover 101, TFT modules 100, lower cover 102 and backlight 200, wherein, the surface cover 101 and the TFT modules
It is combined between 100, between the lower cover 102 and the TFT modules 100 by two-sided glue frame, the lower cover and the TFT
It is the air gap of varying thickness between module.The backlight 200 provides uniform for liquid crystal display each region
The incident light source of high brightness.
Wherein, as a preferred embodiment, as shown in Figure 1, the surface cover 101, TFT modules 100 and lower cover 102 are distinguished
Be bent into predetermined arc, the upper surface 201 of the backlight 200 for curved surface and radian and the predetermined arc (the present embodiment
Predetermined arc value range is 2~6 degree) it is consistent.The embodiment of the present invention is by using the surface cover being bonded successively down under
101st, the consistent sandwich design of TFT modules 100, lower cover 102 and backlight 200 are formed radian can further improve display
The uniformity of screen.It is to be understood that, the surface cover 101, TFT modules 100 and lower cover 102 may be no radian
Planar structure.
With reference to figure 2, the TFT modules 100 include face polaroid 1, liquid crystal cell and bottom polaroid 7, and the face polaroid 1 pastes
The upper surface of liquid crystal cell is attached to, the face polaroid 1 has anti-dazzle and anti-reflective function, can improve display screen in the strong ring of light
Readability under border；Bottom polaroid 7 is attached to the lower surface of liquid crystal cell, to control the polarization direction of bottom incident light.
In the present embodiment, the lower surface of the surface cover 101 and the upper surface of the face polaroid 1 are coated with AR
Antireflection film layer 14, the thickness of the AR antireflections film layer 14 is 200nm~300nm.The present embodiment passes through in surface cover 101
Lower surface and the face polaroid 1 upper surface increase coated with thickness be 200nm~300nm AR antireflection film layers
14, the reflection on two surfaces can be effectively reduced, that is, reduces the reflection of display screen surface, thus can also under strong light environment
It is readable under strong light environment to improve liquid crystal display for display content visible in detail.
As shown in Fig. 3 (a)~Fig. 3 (b), wherein Fig. 3 (a) is the transmitting light formed using the liquid crystal display of the prior art
Line schematic diagram.By using the liquid crystal display of the present embodiment, as shown in Fig. 3 (b), by the lower surface of surface cover 101 with
And the upper surface of the face polaroid 1 increases coated with the AR antireflections film layer 14, Ke Yiyou that thickness is 200nm~300nm
The reflection on two surfaces of reduction of effect reduces the reflection (light sent out including extraneous light and backlight of display screen surface
The reflection of line), so as under strong light environment can also display content visible in detail, improve liquid crystal display in strong light environment
Lower readability.
Specifically, as shown in Fig. 2, the liquid crystal cell include surface glass substrate 2, liquid crystal layer 4 and bottom glass substrate 6, it is described
Face polaroid 1 is attached to the top of surface glass substrate 2, and the bottom of at, the lower surface of glass substrate 6 is pasted with bottom polaroid 7, the face
The extinction axis of polaroid 1 and the direction of pixel electrode 5 into less than 45° angle, the extinction axis in face polaroid described in the present embodiment 1 with
The direction of pixel electrode 5 into 30 ° of angles, and with it is non-energized in the case of liquid crystal molecule long axis direction it is parallel.The bottom polaroid 7
Extinction axis and pixel electrode 5 direction into more than 45° angle, extinction axis and the pixel electricity at bottom polaroid described in the present embodiment 7
The direction of pole 5 into 60 ° of angles, and with it is non-energized in the case of liquid crystal molecule long axis direction it is vertical, face polaroid 1 and bottom polaroid
7 for the light that backlight is sent out to be detached with the ingredient of polarisation, and a portion is through, and another part is then to inhale
The effects that receiving, reflect, scattering makes its hidden, makes its color separation Decompression Controlling image effect.
The medial surface of the surface glass substrate 2 is provided with color filter film 3, and color filter film 3 is intended to lead to for accurately selection
The small range wave band light wave crossed, reflect away other be not intended to by wave band, color filter film 3 prolonged using the design of low latency amount
Amount design value is less than 3nm late, and 3 retardation design value of color filter film is 2nm in the present embodiment.
The bottom of at, the medial surface of glass substrate 6 is provided with pixel electrode 5, and the pixel electrode 5 is set as horizontal cross grizzly bar
Shape structure, the grizzly bar orientation of pixel electrode 5 is consistent with the orientation of the liquid crystal molecule in liquid crystal cell, as shown in figure 4, this
Inventive embodiments are suitable for the liquid crystal display of extraordinary ray pattern, and extraordinary ray is the light of parallel optical axis vibration, therefore picture
Plain electrode 5 is also configured as horizontal direction.In energization, horizontal cross grid strip-like design can make liquid crystal molecule into multidomain side
To aligned twisted, long axis of liquid crystal molecule direction can form different angles from incident direction of polarized light, so as to change
The polarization state of incident polarized light so that light can be formed illuminated state and shown by face polaroid 1.
In the present embodiment, the thickness of the surface glass substrate is≤0.2mm, the thickness of the bottom glass substrate for≤
0.2mm。
The liquid crystal layer 4 is set between color filter film 3 and pixel electrode 5, and the retardation of the liquid crystal layer 4 is
300nm~370nm, retardation is 330nm used by the liquid crystal layer 4 of the present embodiment, coordinates the optical compensation on bottom polaroid 7
Film 18 (with reference to figure 6), can make the visible angle of display screen be largely increased.
As shown in figure 5, the face polaroid 1 includes AR antireflections film layer 14, Anti Glare Coatings 15, Triafol T
(TAC) 16 and polyvinyl alcohol (PVA) 17；Wherein AR antireflections film layer 14 and Anti Glare Coatings 15 are coated successively in three vinegar on upper strata
The upper surface of acid cellulose (TAC) 16, in the lower section of Triafol T (TAC) 16 on upper strata and the Triafol T of lower floor
(TAC) polyvinyl alcohol (PVA) 17 is pasted between 16 top.The wherein direction of the extinction axis of face polaroid 1 and pixel electrode 5
Into less than 45° angle and with it is non-energized in the case of liquid crystal molecule long axis direction it is parallel, the extinction of face polaroid 1 in the present embodiment
The direction of axis and pixel electrode 5 is into 30 ° of angles.In addition, Anti Glare Coatings 15 and the main function of AR antireflections film layer 14 are to make to show
Display screen can also be observed that under strong illumination environment clearly indicates effect, and it is readable under strong light environment to improve liquid crystal display
Property.
With reference to figure 6, the bottom polaroid 7 includes two layers of Triafol T (TAC) 16, polyvinyl alcohol (PVA) 17 and light
Learn compensation film 18.The polyvinyl alcohol 17 is set between two layers of Triafol T 16, and outermost layer is the optical compensation
Film 18.The extinction axis of the bottom polaroid 7 and the direction of pixel electrode 5 into more than 45° angle and with it is non-energized in the case of liquid crystal
The long axis direction of molecule is vertical, and the extinction axis of bottom polaroid 7 described in the present embodiment and the direction of pixel electrode 5 are into 60 ° of angles.
The bottom polaroid 7 of the present embodiment is a kind of compound film, and scattering light source becomes single side after bottom polaroid 7
To polarised light, adjustment polaroid angle can change incident liquid crystal cell polarised light direction.The centre of the bottom polaroid 7
Including one layer of optical compensation films 18, the optical compensation value of the optical compensation films 18 is set as 270nm, the z of optical compensation films 18
Axis direction refractive index is set as Nz=0.5；Optimize the offset of optical compensation films 18 in bottom polaroid 7, the light path with liquid crystal layer 4
Difference matches, and the optical compensation value of this compensation film and the retardation values of the liquid crystal layer 4 in liquid crystal cell are complementary to one another, to widen liquid
Visible angle in crystal display screen all directions.
Because liquid crystal display will not shine in itself, it simply by liquid crystal molecule rotation control light transmission with it is impermeable
It crosses, makes one to arrive different patterns soon, it is therefore desirable to which backlight 200 provides external light source for liquid crystal display.
As shown in fig. 7, the backlight 200 includes optically focused film layer, backlight outline border 12 and basal layer, the basal layer includes
Light emitting diode 11, light guide plate 13 and diffusion barrier 10；The optically focused film layer includes dual brightness enhancement film (DBEF) 8 and ultra micro
Away from polycrystalline structure brightness enhancement film (BEF) 9；Wherein dual brightness enhancement film (DBEF) 8, ultra micro are away from polycrystalline structure brightness enhancement film
(BEF) 9, diffusion barrier 10 and light guide plate 13 are from top to bottom overlayed in backlight outline border 12, and light emitting diode 11 is placed on light guide plate
13 side or underface.Ultra micro has focusing light effect away from polycrystalline structure brightness enhancement film (BEF) 9, can make backlight surface brightness
Increase by 60%.The more traditional backlight of backlight of the present invention increases ultra micro away from 9 He of polycrystalline structure brightness enhancement film (BEF)
Dual brightness enhancement film (DBEF) 8 combines, and higher surface brightness can be obtained using same amount of light emitting diode 11,
Liquid crystal display surface brightness is made also to be promoted accordingly, it can be into revealing excellent display effect.
The light transmission shaft of the light transmission shaft and bottom polaroid 7 of the dual brightness enhancement film (DBEF) 8 is parallel to each other.By backlight
Source is passed to along the light transmission axis direction of bottom polaroid 7 in liquid crystal cell, increases the brightness of incident light, corresponding liquid crystal display surface brightness
Also it can increase, and then improve the whole transmitance of liquid crystal display.
Axis of the ultra micro away from polycrystalline structure brightness enhancement film (BEF) is related to service condition, if display screen is transverse screen side
Axis of the formula, that is, ultra micro away from polycrystalline structure brightness enhancement film (BEF) is parallel with the long side of display screen, if display screen be vertical screen mode i.e.
Axis of the ultra micro away from polycrystalline structure brightness enhancement film (BEF) is parallel with the short side of display screen.
Luminous the two of light emitting diode and RG fluorescent powder of the wherein described light emitting diode 11 including common YAG fluorescent powder
Pole pipe.
High light transmitting liquid crystal display screen operation principle provided in an embodiment of the present invention is as follows：The bottom polaroid 7 is a kind of
By film of the multilayer material after compound, the scattering light source that bottom backlight is sent out is made to become single direction after bottom polaroid 7
Polarised light, the polarised light that the scattering light source that bottom backlight is sent out forms predetermined direction after bottom polaroid 7 is made to enter liquid
In brilliant box.It is wherein designed by the special pixel electrode 5 in the optical compensation films 18 and liquid crystal cell of bottom polaroid 1, to improve liquid
The visible angle of all directions of crystal display screen.Increase additionally by ultra micro away from polycrystalline structure brightness enhancement film (BEF) 9 and reflecting type polarizing
Bright film (DBEF) 8 is combined, and improves focusing light effect, increases backlight surface brightness.The polarised light of predetermined direction passes through liquid crystal cell knead dough
Polaroid 1 by being designed in 1 surface of face polaroid increase AR antireflections film layer 14 and Anti Glare Coatings 15, makes liquid crystal display
It can also be observed that under strong light environment and clearly indicate effect.
It should be noted that each film layer of TFT modules 100 shown in Fig. 2, each film of face polaroid 1 shown in Fig. 4
The upper and lower surface of each film layer of layer, each film layer of bottom polaroid 7 shown in fig. 5 and backlight shown in fig. 6 200 is shown
It is curved surface, and radian is consistent in preferred embodiment for planar structure.
As shown in figure 8, d figures are the visual angle test chart of the embodiment of the present invention, each coaxial annulus in four figures of Fig. 8
A visual angle angle is represented, the visual angle representated by the bigger annulus of diameter is bigger；The numerical value on the right represents contrast in Fig. 8,
1000 represent 1000：1,500 represent 500:1, and so on.From figure 8, it is seen that a figures, b figures and c figures are current general skill
Art, as shown in a, b and c figure, the visual angle for having the light of part wavelength is less than 40 °；Compared with current general technology, the present invention is implemented
The light for the high light transmitting liquid crystal display screen Same Wavelength that example provides all has 40 ° or more of visual angle, and has in other general technologies
The visual angle of the light of part wavelength exceeds less than 40 °.Therefore it can obtain, high light transmitting liquid crystal provided in an embodiment of the present invention is shown
Screen is compared has wider visual angle with current general technology；The contrast numerical value on the right can be seen that the present invention in fact in Fig. 8 simultaneously
The uniformity and contrast for applying the high light transmitting liquid crystal display screen of example offer are above current general technology, coordinate setting for brightness enhancement film
It puts so that display screen has higher brightness value, therefore under higher brightness value, contrast is higher, and the embodiment of the present invention carries
The gradation that the high light transmitting liquid crystal display screen supplied can be shown is abundanter.High light transmitting liquid crystal i.e. provided in an embodiment of the present invention is shown
Display screen is that the liquid with excellent properties such as high transparency, the uniformity, high contrast, wide viewing angle, anti-dazzle and antireflections can be achieved
Crystal display screen.
It will be apparent to those skilled in the art that technical solution that can be as described above and design, make other various
Corresponding change and deformation, and all these changes and deformation should all belong to the protection domain of the claims in the present invention
Within.
Claims (10)
1. a kind of high light transmitting liquid crystal display screen, which is characterized in that including be bonded successively down under surface cover, TFT modules, under
Cover board and backlight；
The TFT modules include face polaroid, liquid crystal cell and bottom polaroid, and the face polaroid is arranged on the top of liquid crystal cell,
The bottom polaroid is arranged on the lower section of liquid crystal cell；The liquid crystal cell includes surface glass substrate, liquid crystal layer and bottom glass substrate, institute
Face polarizer sheet sticking is stated in the top of surface glass substrate, the medial surface of the surface glass substrate is provided with color filter film, in institute
The lower surface for stating bottom glass substrate attaches the bottom polaroid, and the medial surface of the bottom glass substrate is provided with pixel electrode；
The liquid crystal layer is set between color filter film and pixel electrode；
The backlight includes optically focused film layer, basal layer and backlight outline border；Wherein optically focused film layer and basal layer from top to bottom stack
In backlight outline border；
The lower surface of the surface cover and the upper surface of the face polaroid are coated with AR antireflection film layers, the AR counnter attacks
The thickness for penetrating film layer is 200nm~300nm.
2. high light transmitting liquid crystal display screen according to claim 1, which is characterized in that the surface cover, TFT modules and lower cover
Plate be respectively plane either the predetermined arc backlight upper surface for plane or radian it is consistent with the predetermined arc；
It is combined between the surface cover and the TFT modules, between the lower cover and the TFT modules by two-sided glue frame, it is described
It is the air gap of varying thickness between lower cover and the TFT modules.
3. high light transmitting liquid crystal display screen according to claim 1, which is characterized in that the thickness of the surface glass substrate for≤
0.2mm, the thickness of the bottom glass substrate is≤0.2mm.
4. high light transmitting liquid crystal display screen according to claim 1, which is characterized in that the face polaroid includes two layers of three vinegar
Acid cellulose and polyvinyl alcohol；The polyvinyl alcohol is set between two layers of Triafol T, three acetic acid positioned at upper strata
The upper surface of cellulose is sequentially coated with Anti Glare Coatings, and the AR antireflections film layer is set on the Anti Glare Coatings surface；With
And
The bottom polaroid includes two layers of Triafol T, polyvinyl alcohol and optical compensation films, two layers of triacetate fiber
It is polyvinyl alcohol between element, outermost layer is optical compensation films.
5. high light transmitting liquid crystal display screen according to claim 1, which is characterized in that the color filter film uses low latency
Amount design, retardation design value are set smaller than 3nm；The retardation of the liquid crystal layer is set as 300~370nm；
The pixel electrode is horizontal cross grid strip structure, the grizzly bar orientation of the pixel electrode and the liquid in liquid crystal cell
The orientation of brilliant molecule is consistent.
6. high light transmitting liquid crystal display screen according to claim 1, which is characterized in that the extinction axis and picture of the face polaroid
The direction of plain electrode into less than 45° angle, and with it is non-energized in the case of liquid crystal molecule long axis direction it is parallel；The bottom polaroid
Extinction axis and pixel electrode direction into more than 45° angle, and with it is non-energized in the case of liquid crystal molecule long axis direction it is vertical.
7. high light transmitting liquid crystal display screen according to claim 1, which is characterized in that the optical compensation of the optical compensation films
Value is set as 270nm, and optical compensation films z-axis direction refractive index is set as Nz=0.5.
8. high light transmitting liquid crystal display screen according to claim 1, which is characterized in that the optically focused film layer includes reflective inclined
Light brightness enhancement film and ultra micro are away from polycrystalline structure brightness enhancement film, and the dual brightness enhancement film and ultra micro are away from polycrystalline structure brightness enhancement film
It is successively set on from top to bottom above the basal layer；The light transmission shaft of the dual brightness enhancement film and the light transmission of bottom polaroid
Axis is parallel to each other.
9. high light transmitting liquid crystal display screen according to claim 8, which is characterized in that described if display screen is transverse screen mode
Axis of the ultra micro away from polycrystalline structure brightness enhancement film is parallel with the long side of display screen；If display screen is vertical screen mode, the ultra micro is away from more
The axis of crystal structure brightness enhancement film is parallel with the short side of display screen.
10. high light transmitting liquid crystal display screen according to claim 8, which is characterized in that the basal layer includes light-emitting diodes
Pipe, light guide plate and diffusion barrier, the diffusion barrier and light guide plate are successively set on the ultra micro and increase away from polycrystalline structure from top to bottom
Below bright film, the light emitting diode is placed on the side or underface of the light guide plate.
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Application publication date: 20180626 |