CN107991811A - Front light source liquid crystal display and manufacturing method thereof - Google Patents
Front light source liquid crystal display and manufacturing method thereof Download PDFInfo
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- CN107991811A CN107991811A CN201810082988.9A CN201810082988A CN107991811A CN 107991811 A CN107991811 A CN 107991811A CN 201810082988 A CN201810082988 A CN 201810082988A CN 107991811 A CN107991811 A CN 107991811A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 85
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 88
- 239000012528 membrane Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000007639 printing Methods 0.000 claims description 16
- 238000001459 lithography Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 36
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000007 visual effect Effects 0.000 abstract description 3
- 239000010409 thin film Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000035515 penetration Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 1
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- 238000002310 reflectometry Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
Classifications
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention is suitable for the technical field of display, and provides a front light source liquid crystal display, which comprises a TFT (thin film transistor) substrate, a CF (compact flash) substrate, a liquid crystal layer arranged between the TFT substrate and the CF substrate, and a light source arranged on the side surface of the CF substrate, wherein a first polaroid is arranged on one side of the TFT substrate, which is back to the liquid crystal layer, and a second polaroid is arranged on one side of the CF substrate, which is back to the liquid crystal layer; the CF substrate comprises a light-transmitting plate body, a color filter membrane and light guide dots, wherein the color filter membrane and the light guide dots are arranged on the surface of the light-transmitting plate body, light emitted by the light source enters the CF substrate and forms front light through the light guide dots, and the front light passes through the liquid crystal layer and the TFT substrate to form reflection on the first polarizer and is output towards the CF substrate. The display has the advantages that the light guide dots are arranged on the surface of the CF substrate, so that an acrylic or PC light guide plate is omitted, and the thickness of the display is reduced; the light loss caused by the light guide plate is avoided, the brightness and the color of the display screen are optimized, and the visual experience of a user is improved; the bonding procedure of the light guide plate is reduced in the manufacturing process, and the production efficiency, yield and reliability are improved.
Description
Technical field
The invention belongs to display technology field, more particularly to a kind of front light-source liquid crystal display and its manufacture method.
Background technology
At present, front light-source liquid crystal display mainly includes Liquid Crystal Module and front light-source module, the light that front light-source module is sent
It is incident in front of the Liquid Crystal Module, then returned Output Display Unit by the baffle reflection at Liquid Crystal Module rear.Wherein, front light-source module
Including at least light source 1 and light guide plate 2, light source 1 shines and realizes uniform light extraction, liquid crystal after the site of light guide plate 2 is adjusted
Module generally includes CF plates 3, TFT plates 4 and is arranged at liquid crystal 5 therebetween.The front light-source liquid crystal of this traditional structure
Show in device, light guide plate 2 often makes of acrylic or PC materials, is attached between Liquid Crystal Module and glass cover-plate, causes to produce
Complex process, thickness of displays is higher, does not meet the lightening requirement of product；Also, acrylic or PC material transmissivities are inadequate
High (within 90%), can cause brightness of display screen to lose 10% or so.
The content of the invention
It is an object of the invention to provide a kind of front light-source liquid crystal display, it is intended to solves traditional front light-source liquid crystal display
The technical problem that thickness is thicker and brightness is not high.
The present invention is achieved in that front light-source liquid crystal display, including：TFT substrate, CF substrates, be arranged at the TFT
Liquid crystal layer between substrate and CF substrates and the light source for being arranged at the CF substrate side surfaces, the TFT substrate is backwards to the liquid
The side of crystal layer is equipped with the first polaroid, and the CF substrates are equipped with the second polaroid backwards to the side of the liquid crystal layer；The CF
Substrate includes printing opacity plate body, is arranged at the colored filter membrane and light directing site in the light-transmitting plate body surface face, what the light source was sent
Light before light enters in the CF substrates and formed by the scattering of the light directing site, the preceding light through the liquid crystal layer and
TFT substrate is formed in first polaroid to reflect, and is directed toward the CF substrates output.
Further, first polaroid is equipped with reflecting plate, second polaroid backwards to the side of the liquid crystal layer
Cover board is equipped with backwards to the side of the liquid crystal layer.
Further, the light directing site is directive property micro-structure, and the directive property micro-structure is used for light to predetermined
Conduct in direction.
Further, the directive property micro-structure is trigone mesa-shaped micro-structure or triangular pyramid micro-structure.
Further, the center line of the either side of the trigone mesa-shaped micro-structure or triangular pyramid micro-structure and the side
Base between angle be 55~90 °, any length of side of the bottom surface of the trigone mesa-shaped micro-structure or triangular pyramid micro-structure
For 10-20um, the axial height of the trigone mesa-shaped micro-structure or triangular pyramid micro-structure is 2-5um.
Further, the density of the directive property micro-structure is gradual from the close light source to the direction away from the light source
Increase.
Further, the directive property micro-structure is fabricated into the printing opacity plate body by transfer or mask lithography mode
Surface.
Further, the colored filter membrane and the light directing site are arranged at the same surface of the printing opacity plate body, and should
Surface is close to the liquid crystal layer.
Further, the light directing site is arranged at intervals at the white light transmittant area of the colored filter membrane.
Another object of the present invention is to provide a kind of manufacture method of front light-source liquid crystal display, including at least following steps
Suddenly：
Light directing site is made on the surface of the printing opacity plate body equipped with colored filter membrane, forms CF substrates；
In the CF substrate side surfaces, light source is set；
The first polaroid is set backwards to the side of liquid crystal layer in the TFT substrate, in CF substrates backwards to the side of liquid crystal layer
Second polaroid is set；
The filling liquid crystal layer between the CF substrates and TFT substrate.
Front light-source liquid crystal display provided by the invention has the advantages that：The front light-source liquid crystal display is banned
Traditional light guide plate, CF substrate surfaces are arranged at by light directing site, by the light guide plate of CF substrate dual-use materials, i.e. integration front light-source
Into display panel, acrylic or PC leaded light flaggies are eliminated, and then reduces the thickness of display, promotes product lightening；
Avoid the light loss that light guide plate is brought, can light penetration, optimize total reflection brightness of display screen and color, lifting user regards
Feel experience；In addition, being totally reflected the bonding process for reducing a light guide plate in display screen manufacturing process integrating, production is improved
Efficiency and yield, while improve product reliability.
Brief description of the drawings
Fig. 1 is the structure diagram of front light-source liquid crystal display in conventional art；
Fig. 2 is the structure diagram of front light-source liquid crystal display provided in an embodiment of the present invention；
Fig. 3 is the structure diagram of the CF substrates of front light-source liquid crystal display provided in an embodiment of the present invention；
Fig. 4 is the light directing site structure diagram of the CF substrates of front light-source liquid crystal display provided in an embodiment of the present invention；
Fig. 5 is the part-structure schematic diagram and light path of the CF substrates of front light-source liquid crystal display provided in an embodiment of the present invention
Figure；
Fig. 6 is the manufacture method flow chart of front light-source liquid crystal display provided in an embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
It should be noted that when component is referred to as " being fixed on " or " being arranged at " another component, it can directly or
Connect on another component.When a component is referred to as " being connected to " another component, it can be directly or indirectly
It is connected on another component.The orientation or position relationship of the instructions such as term " on ", " under ", "left", "right" are based on attached drawing
Shown orientation or position relationship, are for only for ease of description, rather than the device or element of instruction or hint meaning must have
There is specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to this patent.Term " first ",
" second " is used merely to facilitate description purpose, and it is not intended that instruction or implying relative importance or implicit indicating technical characteristic
Quantity." multiple " are meant that two or more, unless otherwise specifically defined.
In order to illustrate technical solutions according to the invention, it is described in detail below in conjunction with specific accompanying drawings and embodiments.
Referring to Fig. 2, the embodiment of the present invention provides a kind of front light-source liquid crystal display, including：TFT substrate 10, CF substrates
20th, the liquid crystal layer 30 that is arranged between TFT substrate 10 and CF substrates 20 and the light source 40 for being arranged at 20 side of CF substrates, CF bases
Plate 20 includes printing opacity plate body 21, is arranged at the colored filter membrane 22 and light directing site 23 on 21 surface of printing opacity plate body, and light source 40 is sent
Light enter in CF substrates 20 and formed by the scattering of light directing site 23 before light, preceding light returns CF bases through 30 back reflection of liquid crystal layer
Plate 20 exports.In addition, the first polaroid 70 is equipped with backwards to the side of liquid crystal layer 30 in TFT substrate 10, in CF substrates 20 backwards to liquid
The side of crystal layer 30 is equipped with the second polaroid 80.Specifically, the first polaroid 70, TFT substrate 10, liquid crystal layer 30, CF substrates 20
Form liquid crystal display panel with the second polaroid 80, the light transmitted by liquid crystal layer 30 by CF substrates 20 colored filter membrane 22 into
The light of predetermined strength and predetermined color is obtained after row color filtration, and then forms image.
The operation principle of the front light-source liquid crystal display is：The light that light source 40 is sent enters CF substrates 20, by CF substrates
The light directing site 23 on 20 surfaces is scattered light, makes light more uniform, that is, obtain it is uniform before light, preceding light is to liquid crystal layer
30 direction transmission, forms reflection through liquid crystal layer 30 and TFT substrate 10 at the first polaroid 70, reflected light with it is less enter
Firing angle enters CF substrates 20 and is outwards projected by the second polaroid 80, perceptual image after being received by human eye.
The beneficial effect of front light-source liquid crystal display provided in an embodiment of the present invention is：Traditional light guide plate has been banned, will
Light directing site 23 is arranged at 20 surface of CF substrates, by 20 dual-use material of CF substrates, the i.e. light guide plate of integration front light-source to display surface
In plate, acrylic or PC leaded light flaggies are eliminated, and then reduces the thickness of display, promotes product lightening；Avoid and lead
The light loss that tabula rasa is brought, can light penetration, optimize total reflection brightness of display screen and color, lift user's visual experience；
In addition, reduce the bonding process of a light guide plate integrating to be totally reflected in display screen manufacturing process, improve production efficiency and
Yield, while improve product reliability.
Further, reflecting plate 50 usually is set backwards to 30 side of liquid crystal layer in the first polaroid 70, in the second polaroid
80 set cover board 60 backwards to 30 side of liquid crystal layer, and reflecting plate 50 is used to reflect the light revealed through the first polaroid 70
This reflecting plate is only a kind of improvement project, does not have to delete in structure chart in the case of not essential, 60 one side of cover board is used
In protection 20 and second polaroid 80 of CF substrates and the support of complete machine structure is provided, is additionally operable to 20 upper surface of CF substrates is (close
The surface of cover board 60 is upper surface) and the light of the second polaroid 80 leakage reflect, and then ensure that higher light utilizes
Rate.
Further with reference to figure 3 and Fig. 4, in order to which the light for making light directing site 23 incident to light source 40 is uniformly scattered
And exported to liquid crystal layer 30, which is designed as directive property micro-structure, the directive property micro-structure be used for by light to
Predetermined direction (towards the direction of liquid crystal layer 30) conducts.Traditional light directing site is laser dotting or silk-screen printing point, site
Usually round dot structure, this light directing site scattering power can be met the requirements, but directive property is poor, and one part light refers to
To liquid crystal, and also some light can be directed toward away from the direction of liquid crystal, i.e. backscattering, this some light will also pass through another set instead
Penetrate structure and be reflected back towards, and to pass through some media and dielectric interface in reflection process, have resulted in larger damage
Lose, reflecting the light energy of recycling has had greater loss, and therefore, design directive property micro-structure is by beneficial to the profit of luminous energy
With.
With specific reference to Fig. 4, in one embodiment, directive property micro-structure is trigone mesa-shaped micro-structure or the micro- knot of triangular pyramid
The central axes of structure, more preferably oblique trigone mesa-shaped micro-structure or oblique triangular pyramid micro-structure, i.e. triangular pyramid or triangular platform are (even
Connect trigone conical point and the straight line of bottom center, or the straight line of connection triangular platform Liang Ge bottom center) and bottom surface out of plumb, three
Rib Length discrepancy, the incline direction reference light source incident direction of the inclined central axes are set.The center line of any side and the side
Between the base angle in face is 55-90 °, specific angle needs to be adjusted according to display screen LCD alignment angle.Wherein, triangular pyramid
Shape micro-structure has a bottom surface and a tapered side, trigone mesa-shaped micro-structure have the larger bottom surface 231 of area and area compared with
Small upper bottom surface 232 and three tapers or trapezoidal side 233, the bottom surface of triangular pyramid micro-structure or the micro- knot of trigone mesa-shaped
The bottom surface 231 of structure is connected with the surface of the printing opacity plate body 21 of CF substrates 20.This trigone mesa-shaped micro-structure or triangular pyramid are micro-
Structure can scatter light towards the direction of liquid crystal layer 30, so reduce because scattering direction is excessively mixed and disorderly and caused by light loss.
The light directing site 23 of the present embodiment can control scattering light in the range of 120 °~180 °, avoid light from facing away from liquid crystal
Direction transmission.In addition, be irregular trigone mesa-shaped micro-structure or triangular pyramid micro-structure by directive property microstructure design, its
With three sides 233 do not waited, its respective side can be set relative to light according to light source incidence direction and LCD alignment angle
The angle of inclination of the angle in source and whole micro-structure.Light for being sent to light source carries out the scattering of predetermined direction, convenient
Different 40 positions of light source are adapted to when setting light source 40.At the same time, it is contemplated that dispersion effect, light utilization efficiency and processing complexity,
Triangular pyramid or trigone mesa-shaped micro-structure are better than other pyramids or terrace with edge micro-structure.
Further, the center line of the either side of trigone mesa-shaped micro-structure or triangular pyramid micro-structure and the bottom of the side
Angle α between side is 55~90 °, a length of 10- of any side of the bottom surface of trigone mesa-shaped micro-structure or triangular pyramid micro-structure
The axial height of 20um, trigone mesa-shaped micro-structure or triangular pyramid micro-structure is (perpendicular to the side of upper bottom surface 232 and bottom surface 231
To for axial direction) it is 2-5um.Directive property micro-structure with the structural parameters can control light in the range of 150 °, and
Uniformity is more preferable.
In the present embodiment, can be to the distribution density of directive property micro-structure in order to make display panel brightness more uniform
It is adjusted, with reference to figure 3, makes the distribution density of directive property micro-structure from gradually increasing to the direction away from light source 40 by close to sources 40
Greatly.When 20 side of CF substrates sets light source 40, the distribution density of directive property micro-structure is one laterally opposed by setting light source 40
Side increases, and when the opposite sides of CF substrates 20 sets light source 40, the distribution density of directive property micro-structure is by setting light source 40
Two lateral intermediate region increases.Certainly, in order to solve the problems, such as that dark space occurs in 20 corner of CF substrates, corner can also be made
Directive property micro-structure density bigger.
The directive property micro-structure can be made in the surface of printing opacity plate body 21 by transfer or mask lithography mode mode.
The processing method is easy to implement, and cost is low, easy to structure control.Certainly, the present invention is not excluded for using mode systems such as Laser Processings
Make.
Further, the light directing site 23 of CF substrates 20 and colored filter membrane 22 are the same as the same table for being arranged at printing opacity plate body 21
Face, and the surface is close to liquid crystal layer 30.Specifically, the CF substrates 20 for front light-source display, its colored filter membrane 22 usually exist
Color filtration leaves white light transmittant area outside region, which is preferably provided at the white light transmittant area of colored filter membrane 22
Domain, and then farthest reduce light loss.Light directing site 23 is distributed among colored filter membrane 22, it is so optional to make guide-lighting net
The scope of point 23 is very big, can realize light uniformity by adjusting network point distribution density, and then can ensure light
Preferable light utilization and Color control are realized while uniformity.
With further reference to Fig. 5, which is equipped with the wedge structure 24 being arranged side by side, wedge shape close to the surface of cover board 60
Perpendicular to light source incidence direction, the light for light source 40 to be sent reflexes to the setting of CF substrates 20 and leads the rib length direction of structure 24
The direction of light site 23, further reduces light loss.
Further, in order to avoid between 24 and second polaroid 80 of wedge structure there are gap, can be in CF substrates 20
24 and second polaroid 80 of wedge structure between filled layer is set.
With reference to figure 6, the present invention further provides the manufacture method of above-mentioned front light-source liquid crystal display, including at least following steps
Suddenly：
S1：Light directing site 23 is made on the surface of the printing opacity plate body 21 equipped with colored filter membrane 22, forms CF substrates 20；
S2：In 20 side of CF substrates, light source 40 is set；
S3：First polaroid 70 is set backwards to the side of liquid crystal layer 30 in TFT substrate 10, in CF substrates 20 backwards to liquid crystal layer
30 side sets the second polaroid 80；
S4：The filling liquid crystal layer 30 between CF substrates 20 and TFT substrate 10.
In step sl, light directing site 23 is made in the process on the surface of the printing opacity plate body 21 equipped with colored filter membrane 22
In, in order to avoid causing to damage to colored filter membrane, protective layer is preferably set on colored filter membrane 22, then carries out light directing site
Make, then protective layer is corroded or washed.
This method sets light directing site 23 on 21 surface of printing opacity plate body equipped with colored filter membrane 22, by light guide plate and CF substrates
20 are integrated, and have banned the light guide plate of traditional preceding optical display unit, that is, eliminate acrylic or PC leaded light flaggies, and then reduce
The thickness of display, promotes product lightening；Avoid the light loss that light guide plate is brought, can light penetration, optimize and be all-trans
Brightness of display screen and color are penetrated, lifts user's visual experience；In addition, reduce one integrating to be totally reflected in display screen manufacturing process
The bonding process of secondary light guide plate, improves production efficiency and yield, while improves product reliability.
With further reference to Fig. 6, further include after step s4：
Step S5：Cover board 60 is set backwards to the side of liquid crystal layer 30 in the first polaroid 70.The cover board 60 has high printing opacity
Property, on the one hand it is used to protect CF substrates 20 and the support of complete machine structure is provided, is on the other hand used to (lean on 20 upper surface of CF substrates
The surface of nearly cover board 60 be upper surface) and the light of the first polaroid 70 leakage reflect, and then guarantee it is higher light it is sharp
With rate.
Step S6：Reflecting plate 50 is set backwards to 30 side of liquid crystal layer in the second polaroid 80.The reflecting plate 50 has higher
Reflectivity, the light for the first polaroid 70 to be revealed reflect, and improve light utilization efficiency.
Further, CF substrates 20 can be processed into the wedge structure 24 being arranged side by side backwards to the one side of liquid crystal layer 30, should
The rib length direction of wedge structure 24 perpendicular to light source 40 incident direction, in this way, can by the incident light of light source 40 to equipped with
The direction reflection of light directing site 23, increases light utilization efficiency, improves display brightness and color.In order to make 20 and first polarisation of CF substrates
Fitted closely between piece 70, filled layer can also be set between 24 and first polaroid 70 of wedge structure.
Assemble each component and the circuit part of display is subjected to corresponding connection completion front light-source liquid crystal display afterwards
Assembling.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (10)
1. front light-source liquid crystal display, it is characterised in that including：TFT substrate, CF substrates, be arranged at the TFT substrate and CF bases
Liquid crystal layer between plate and the light source for being arranged at the CF substrate side surfaces, the TFT substrate is backwards to the side of the liquid crystal layer
Equipped with the first polaroid, the CF substrates are equipped with the second polaroid backwards to the side of the liquid crystal layer；The CF substrates include saturating
Tabula rasa body, the colored filter membrane and light directing site for being arranged at the light-transmitting plate body surface face, described in light that the light source is sent enters
Light before being formed in CF substrates and by the scattering of the light directing site, the preceding light is through the liquid crystal layer and TFT substrate in institute
State the first polaroid and form reflection, be directed toward the CF substrates output.
2. front light-source liquid crystal display as claimed in claim 1, it is characterised in that first polaroid is backwards to the liquid crystal
The side of layer is equipped with reflecting plate, and second polaroid is equipped with cover board backwards to the side of the liquid crystal layer.
3. front light-source liquid crystal display as claimed in claim 1, it is characterised in that the light directing site is the micro- knot of directive property
Structure, the directive property micro-structure are used to conduct light to predetermined direction.
4. front light-source liquid crystal display as claimed in claim 3, it is characterised in that the directive property micro-structure is trigone mesa-shaped
Micro-structure or triangular pyramid micro-structure.
5. front light-source liquid crystal display as claimed in claim 4, it is characterised in that the trigone mesa-shaped micro-structure or triangular pyramid
Angle between the center line of the either side of shape micro-structure and the base of the side is 55~90 °, the micro- knot of trigone mesa-shaped
The a length of 10-20um of any side of the bottom surface of structure or triangular pyramid micro-structure, the micro- knot of the trigone mesa-shaped micro-structure or triangular pyramid
The axial height of structure is 2-5um.
6. front light-source liquid crystal display as claimed in claim 4, it is characterised in that the density of the directive property micro-structure by by
The nearly light source gradually increases to the direction away from the light source.
7. such as claim 3~6 any one of them front light-source liquid crystal display, it is characterised in that the directive property micro-structure
The surface of the printing opacity plate body is fabricated into by transfer or mask lithography mode.
8. such as claim 3~6 any one of them front light-source liquid crystal display, it is characterised in that the colour filter membrane and institute
The same surface that light directing site is arranged at the printing opacity plate body is stated, and the surface is close to the liquid crystal layer.
9. front light-source liquid crystal display as claimed in claim 8, it is characterised in that the light directing site is arranged at intervals at described
The white light transmittant area of colored filter membrane.
10. the manufacture method of front light-source liquid crystal display, it is characterised in that including at least following step：
Light directing site is prepared on the surface of the printing opacity plate body equipped with colored filter membrane, forms CF substrates；
In the CF substrate side surfaces, light source is set；
The first polaroid is set backwards to the side of liquid crystal layer in the TFT substrate, is set in CF substrates backwards to the side of liquid crystal layer
Second polaroid；
The filling liquid crystal layer between the CF substrates and TFT substrate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810082988.9A CN107991811A (en) | 2018-01-29 | 2018-01-29 | Front light source liquid crystal display and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810082988.9A CN107991811A (en) | 2018-01-29 | 2018-01-29 | Front light source liquid crystal display and manufacturing method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116657A (en) * | 2018-10-25 | 2019-01-01 | 成都捷翼电子科技有限公司 | A kind of color electric paper display module and preparation method thereof |
| CN110750013A (en) * | 2019-11-29 | 2020-02-04 | 深圳市金泰坦科技有限公司 | Display screen, front light-emitting device and manufacturing method |
| CN112255829A (en) * | 2020-10-22 | 2021-01-22 | Tcl通讯（宁波）有限公司 | Display panel and display device |
| CN112946948A (en) * | 2021-02-08 | 2021-06-11 | 捷开通讯(深圳)有限公司 | Display panel and display device |
| WO2023241268A1 (en) * | 2022-06-15 | 2023-12-21 | 京东方科技集团股份有限公司 | Front light source and display device |
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| CN110750013A (en) * | 2019-11-29 | 2020-02-04 | 深圳市金泰坦科技有限公司 | Display screen, front light-emitting device and manufacturing method |
| CN112255829A (en) * | 2020-10-22 | 2021-01-22 | Tcl通讯（宁波）有限公司 | Display panel and display device |
| CN112946948A (en) * | 2021-02-08 | 2021-06-11 | 捷开通讯(深圳)有限公司 | Display panel and display device |
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| CN117806065A (en) * | 2023-12-29 | 2024-04-02 | 南通芯洛图电子科技有限公司 | Total reflection type display device and manufacturing method thereof |
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