CN107340922A - Integrated touch control display - Google Patents
Integrated touch control display Download PDFInfo
- Publication number
- CN107340922A CN107340922A CN201710566627.7A CN201710566627A CN107340922A CN 107340922 A CN107340922 A CN 107340922A CN 201710566627 A CN201710566627 A CN 201710566627A CN 107340922 A CN107340922 A CN 107340922A
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- CN
- China
- Prior art keywords
- touch control
- phase delay
- wave plate
- control electrode
- electrode layer
- Prior art date
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
Abstract
A kind of integrated touch control display, it includes composite base plate, bottom Polarizer and display panel, wherein display panel, between composite base plate and bottom Polarizer.Composite base plate include bottom surface in phase delay (Re) 1/4 wavelength wave plate, be arranged at phase delay in bottom surface 1/4 wavelength wave plate the touch control electrode layer at least on a surface, protective layer and polarizing layer.Polarizing layer is arranged between 1/4 wavelength wave plate of phase delay in bottom surface and protective layer.The integrated touch control display that this exposure is provided can improve the problem of visually produced blank screen is with rainbow line simultaneously, and can reduce integral thickness.
Description
Technical field
The invention relates to integrated touch control display, particularly one kind to be arranged at phase in bottom surface comprising touch control electrode layer
The integrated touch control display at least on a surface of 1/4 wavelength wave plate of position delay.
Background technology
The laminated construction of traditional Polarizer is the poly- second for intermediate layer with polyvinyl alcohol (Polyvinyl Alcohol, PVA)
Enol both sides are Triafol T (Triacetate Cellulose Film, TAC) film layer, wherein optically active
It is PVA layers, but PVA layers easily hydrolyze, in order to protect the physical characteristic of Polarizer, thus it is, it is necessary to each attached in the both sides of PVA layers
One layer with high transmission rate, water-tolerant and TAC layer with certain mechanical strength to protect PVA layers.Contact panel can be again
Superposition is on Polarizer.Because polyvinyl alcohol and Triafol T have linearly polarized light characteristic, therefore, light passes through traditional inclined
It is linearly polarized light after the laminated construction of tabula rasa.If the polarization direction of this linearly polarized light and sunglasses (the tool line of observer's wearing
Properties of polarized light) polarization direction it is vertical when, the problem of blank screen occurs in visual effect.When the substrate of contact panel is plastics
When, the problem of rainbow line occurs in visual effect.
In addition, the laminated construction of traditional Polarizer, its thickness is about 75~135 microns, then after being bonded with contact panel, its
Thickness is about 100~250 microns, if module cover glass of arranging in pairs or groups again (Cover Glass, CG), its integral thickness is micro- up to 725
Rice.
Therefore, visually produced blank screen and rainbow line problem can be improved simultaneously by being badly in need of one kind, and can reduce integral thickness
Integrated touch control display.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of integrated touch control display, while improve and visually produced
The problem of raw blank screen is with rainbow line, and integral thickness can be reduced.
One of present invention embodiment provides a kind of integrated touch control display, its include composite base plate, bottom Polarizer with
Display panel, wherein display panel, between composite base plate and bottom Polarizer.Composite base plate includes：Phase delay in bottom surface
1/4 wavelength wave plate, be arranged at phase delay in bottom surface 1/4 wavelength wave plate the touch control electrode layer at least on a surface, protect
Sheath and polarizing layer.Polarizing layer, it is arranged between 1/4 wavelength wave plate of phase delay in bottom surface and protective layer.
In one embodiment of this invention, further include：Cover sheet and optical cement.Optics gemel connection composite base plate and protection
Cover plate.
In one embodiment of this invention, phase delay is small in the face of 1/4 wavelength wave plate of phase delay wherein in bottom surface
In 300 nanometers.
In one embodiment of this invention, wherein touch control electrode layer is individual layer touch control electrode layer.
In one embodiment of this invention, wherein individual layer touch control electrode layer is arranged on 1/4 wavelength of phase delay in bottom surface
Between wave plate and polarizing layer.
In one embodiment of this invention, wherein individual layer touch control electrode layer is arranged on 1/4 wavelength of phase delay in bottom surface
Between wave plate and optical cement.
In one embodiment of this invention, wherein touch control electrode layer touches comprising the first corresponding touch control electrode layer and second
Control electrode layer.First touch control electrode layer is arranged between 1/4 wavelength wave plate of phase delay in bottom surface and optical cement, the second touch-control
Electrode layer is arranged between 1/4 wavelength wave plate of phase delay in bottom surface and polarizing layer.
In one embodiment of this invention, wherein the thickness of composite base plate is less than 170 microns.
The beneficial effects of the invention are as follows：
Because this integrated touch control display includes 1/4 wavelength wave plate, therefore light is by being linear polarization after the Polarizer of bottom
Light, when this linearly polarized light again by 1/4 wavelength wave plate of phase delay in bottom surface after can produce elliptically polarized light, therefore solve biography
System touch control display, polarization direction and the polarization of the sunglasses (tool linearly polarized light characteristic) of observer's wearing when linearly polarized light
The problem of blank screen occurs when direction is vertical.Further, since this 1/4 wavelength wave plate is using the material of phase delay in bottom surface,
Therefore also solve in conventional touch display, when the substrate of touch control electrode is plastics, it may appear that the problem of rainbow line.
Brief description of the drawings
To enable the feature of the present invention, advantage and embodiment to become apparent, appended diagram is described as follows：
Fig. 1 to Fig. 6 illustrates the profile of the integrated touch control display according to one embodiment of the invention respectively.
Fig. 7 to Fig. 8 illustrates the different aspects of the integrated touch control display according to embodiments of the present invention respectively.
Reference：
100：1/4 wavelength wave plate of phase delay in bottom surface
102：Touch control electrode layer
104：Individual layer touch control electrode layer
106：Printed circuit soft board
108：Polarizing layer
110：Protective layer
112：Display panel
114：Bottom Polarizer
116：Optical cement
118：Cover sheet
120：First touch control electrode layer
122：Second touch control electrode layer
300、500、700：Composite base plate
200、400、600：Integrated touch control display
Embodiment
The purpose and advantage of the present invention, after in following embodiments with the detailed narration of schema and element numbers,
To be more notable.However, it is understood that the embodiment that provides and being not used to the scope that the limitation present invention is covered.These realities
Details in business is not applied to limit the present invention.That is, in some embodiments of the present invention, the details in these practices
It is non-essential.
Words used herein about "comprising", " comprising ", " having ", " containing ", " being related to " and other similar culvert meanings
Remittance is all open, for example, is meant including but not limited to this.
Except there is other clearly to censure in non-content, odd number word used herein includes the referent of plural number.Through
With reference to " embodiment " so specific denotion, in the embodiment of at least one of this case invention, represent a kind of
Specific feature, structure or characteristic, therefore " in an embodiment " throughout, such phrase occur through special censure
When, and without necessarily referring to identical embodiment, further, in one or more embodiments, these special feature, knots
Structure or characteristic can be mutually combined according to suitable situation.
A plurality of embodiments of the present invention will be disclosed with schema below, it is as clearly stated, thin in many practices
Section will be explained in the following description.It should be appreciated, however, that the details in these practices is not applied to limit the present invention.
That is in some embodiments of the present invention, the details in these practices is non-essential.In addition, for the sake of simplifying schema,
Some known usual structures will illustrate it in a manner of simply illustrating in the drawings with component.
In addition, relative vocabulary, as " under " or " bottom " with " on " or " top ", it is shown in the accompanying drawings in text for describing
The relation of one component and another component.With respect to vocabulary be for describe device it is described in the accompanying drawings outside different azimuth be can
With what is be understood.If for example, the device in an accompanying drawing is reversed, component will be described be originally positioned at other assemblies it " under "
Side will be oriented positioned at other assemblies it " on " side.Exemplary vocabulary " under ", particular orientation with reference to the accompanying drawings can include "
Under " and " on " two kinds of orientation.Similarly, if the device in an accompanying drawing is reversed, it was positioned at other originally that component, which will be described,
Component its " lower section " or " under " in other assemblies its " top " will be oriented.Exemplary vocabulary " lower section " or " it
Under ", " top " and " top " two kinds of orientation can be included.
Fig. 1 to Fig. 6 illustrates the profile of the integrated touch control display according to one embodiment of the invention respectively.
In embodiment as depicted in Fig. 1, there is provided 1/4 wavelength wave plate 100 of phase delay in a bottom surface.Wave plate is one
The optical module of kind tool birefringence (Birefringence) property.When light is by this component, electric field along a direction (F axles,
Fast axle) vibration ray velocity it is very fast, and the ray velocity that electric field vibrates along the direction (S axles, slow axis) perpendicular with this direction is slower.
Therefore, when the light in this two direction during this optical module by that can produce phase difference, if this phase difference is just equal to quarter-wave
When, this optical module is referred to as quarter wave plate (Quarter-Wave Plate, QWP).Quarter wave plate is to utilize this Birefringent optical group
The thickness of part controls, and the phase difference of two electric field oscillation direction generations is relevant with by the optical wavelength of this component.In addition,
The birefringence that optical delay (R) means is multiplied by the thickness of film, and R=△ n × d, wherein △ n represent birefringence, and d is blooming
Degree.Birefringence is divided into refractive index △ n in facein=nx-nyWith refractive index △ n outside faceth=nz-(nx+ny)/2, wherein Z-direction
For the thickness direction of optical film, X-axis refers to be orthogonal to the direction of largest refractive index in the plane of Z axis, and Y-axis refers to be orthogonal to X-axis
With the direction of Z axis.nzRefer to refractive index of the optical film along Z-direction, nxRefer to refractive index of the optical film along X-direction, nyRefer to
Refractive index of the optical film along Y direction.Therefore, in face phase delay by Re=(nx-ny) × d represents that phase delay is by R outside faceth
=[nz-(nx+ny)/2] × d expressions.In the present embodiment, 1/4 wavelength optical film 100 of phase delay refers in face in bottom surface
Phase delay ReLess than 300 nanometers, phase delay R e.g. in faceeFor 250,200,150,100 nanometers.In the present embodiment,
1/4 wavelength wave plate 100 of phase delay is by cyclic olefin monomers co-polymer (Cyclic Olefin in bottom surface
Copolymer, COC) or cyclic olefin monomers polymer (Cyclic Olefin Polymer, COP) formed.
Please be further continued for reference to figure 1, set touch control electrode layer 102 in phase delay in bottom surface 1/4 wavelength wave plate 100 extremely
On a few surface.In the present embodiment, touch control electrode layer 102 can be mono-layer oxidized indium tin (Single Indium Tin
Oxide, SITO), and be arranged on 1/4 wavelength wave plate 100 of phase delay in bottom surface.In some embodiments, touch control electrode
Layer 102 can be double-deck tin indium oxide (Double Indium Tin Oxide, DITO), and be arranged on phase delay in bottom surface
The opposite sides of 1/4 wavelength wave plate 100.In other embodiments, touch control electrode layer 102 be, for example, nano-silver thread, nano silver particles,
CNT, conducting polymer or metal.
In embodiment as Figure 2 illustrates, touch control electrode layer 102 is individual layer touch control electrode layer 104, and is bored using laser
Hole (Laser Drill), to form the individual layer touch control electrode layer 104 of patterning.In some embodiments, individual layer touch control electrode layer
104 pattern is, for example, square, rectangle, parallelogram, triangle or trapezoidal.Then, phase delay in bottom surface is made
1/4 wavelength wave plate 100 combines with printed circuit soft board (Flexible Printed Circuit, FPC) 106, wherein printing electricity
Road soft board 106 can be directly anchored on 1/4 wavelength wave plate 100 of phase delay in bottom surface.
In the embodiment shown as depicted in fig. 3, spin upside down printed circuit soft board 106, in bottom surface phase delay 1/4 ripple
Long wave plate 100 and individual layer touch control electrode layer 104, so that individual layer touch control electrode layer 104 is located at 1/4 wavelength of phase delay in bottom surface
Under wave plate 100.Then, polarizing layer 108 is bonded below individual layer touch control electrode layer 104, so that individual layer touch control electrode layer 104
Between the 1/4 wavelength wave plate 100 and polarizing layer 108 of phase delay in bottom surface.Then, protection is bonded below polarizing layer 108
Layer 110, so that polarizing layer 108 is arranged between 1/4 wavelength wave plate 100 of phase delay in bottom surface and protective layer 110, to be formed
A kind of composite base plate 300.In the present embodiment, the material of polarizing layer 108 is polyvinyl alcohol (PVA), and the material of protective layer 110 is
Triafol T (TAC).The composite base plate 300 that the present embodiment is provided, its thickness can be controlled in 170 microns (μm) below,
Therefore, compared to the laminated construction of traditional Polarizer, the composite base plate 300 that this exposure is provided is relatively thin.
In embodiment as depicted in Fig. 4, display panel 112 and bottom Polarizer 114 are sequentially attached at composite base plate
Under 300, so that display panel 112 is between composite base plate 300 and bottom Polarizer 114.Then, printed circuit soft board is removed
106 to form an integrated touch control display 200.In the present embodiment, the substrate of touch control electrode has been integrated into composite base plate
300.Because this integrated touch control display 200 includes 1/4 wavelength wave plate, therefore light is by being that line is inclined after bottom Polarizer 114
Shake light, when this linearly polarized light again by 1/4 wavelength wave plate 100 of phase delay in bottom surface after can produce elliptically polarized light, therefore solve
Determine conventional touch display, polarization direction and the sunglasses (having linearly polarized light characteristic) of observer's wearings when linearly polarized light
Polarization direction it is vertical when the problem of blank screen occurs.Further, since this 1/4 wavelength wave plate is using phase delay in bottom surface
Material, therefore also solve in conventional touch display, when the substrate of touch control electrode is plastics, it may appear that rainbow line is asked
Topic.
In some embodiments, bottom Polarizer 114 can be the knot for making polarisation sublayer between upper and lower two protection sublayers
Structure (does not illustrate), and wherein the material of polarisation sublayer can be polyvinyl alcohol (PVA), and it can be triacetate fiber to protect the material of sublayer
Plain (TAC).Display panel 112 can be Electronic Paper (Electronic-Paper), super-twisted nematic liquid crystal display (Super
Twisted Nematic Liquid-Crystal Display, STN LCD), colorful film type (Thin Film
Transistors Liquid-Crystal Display, TFT LCD), polymer LED (Polymer Light
Emiting Diode, PLED), Organic Light Emitting Diode (Organic Light Emitting Diode, OLED).
In the embodiment shown as shown graphically in fig 5, optical cement 116 is arranged to 1/4 wavelength wave plate of phase delay in bottom surface
On 100.Here, optical cement 116 refers to can be used for the special adhesive for cohering optically transparent component.In section Example
In, optical cement 116 can be OCA (Optically Clear Adhesive).
In embodiment as depicted in Fig. 6, integrated touch control display 200 may also include cover sheet 118, its be by
Conformed to by optical cement 116 on 1/4 wavelength wave plate 100 of phase delay in bottom surface.This side being bonded by optical cement 116
Formula alternatively referred to as directly engages (Direct Bonding) mode.In other embodiments, cover sheet 118 does not pass through optics
Glue 116 conforms to 1/4 wavelength wave plate 100 of phase delay in bottom surface.It the substitute is, in cover sheet 118 and bottom surface
It is air layer (Air Layer) between 1/4 wavelength wave plate 100 of phase delay, such a mode by air layer fitting can claim
(Air Bonding) mode (not illustrating) is engaged for air.The material of cover sheet 118 can be glass (such as alkali-free glass, sodium calcium
Glass, strengthened glass, Gorilla glass, Dragontrail alumina silicate glasses), sapphire, HC diaphragms, decorating film
(Deco Film), functional membrane (AG, AS, AR, LR etc.), plastic cover plate (PC, PMMA, PMMA/PC, PMMA/PC/PMMA etc.).
Fig. 7 and Fig. 8 illustrates the not homomorphism of the integrated touch control display 400,600 according to embodiments of the present invention respectively
Sample.
In the embodiment shown as depicted in fig. 7, the position of individual layer touch control electrode layer 104 unlike Fig. 5.In the figure 7,
The position of individual layer touch control electrode layer 104 is located between 1/4 wavelength wave plate 100 of phase delay in optical cement 116 and bottom surface.It is more detailed
Thin says, Fig. 7 integrated touch control display 400 is by optical cement 116, composite base plate 500, display panel 112 and bottom polarisation
Plate 114 is formed.Composite base plate 500 includes 1/4 wavelength wave plate 100, polarizing layer 108, the protective layer 110 of phase delay in bottom surface
And the individual layer touch control electrode layer 104 between the 1/4 wavelength wave plate 100 and optical cement 116 of phase delay in bottom surface.In this reality
Apply in example, 1/4 wavelength wave plate 100 of phase delay refers to phase delay R in face in bottom surfaceeLess than 300 nanometers, e.g. in face
Phase delay ReFor 250,200,150,100 nanometers.The composite base plate 500 that the present embodiment is provided, its thickness can be controlled in 170
Micron (μm) is below.
In the embodiment shown as depicted in figure 8, the configuration of touch control electrode layer 102 unlike Fig. 5.Fig. 8's is integrated
Touch control display 600 is made up of optical cement 116, composite base plate 700, display panel 112 and bottom Polarizer 114.Composite base
Plate 700 includes 1/4 wavelength wave plate 100 of phase delay, polarizing layer 108 and protective layer 110 in touch control electrode layer 102, bottom surface.
In the present embodiment, the touch control electrode layer 102 of composite base plate 700 includes the first touch control electrode layer 120, second touch control electrode layer 122.
In the present embodiment, the first corresponding touch control electrode layer 120 prolongs positioned at phase in bottom surface respectively with second touch control electrode layer 122
The both sides of 1/4 slow wavelength wave plate 100.In more detail, the first touch control electrode layer 120 is arranged at 1/ of phase delay in bottom surface
Between 4 wavelength wave plates 100 and optical cement 116, second touch control electrode layer 122 is arranged at 1/4 wavelength ripple of phase delay in bottom surface
Between piece 100 and polarizing layer 108.In the present embodiment, corresponding the first touch control electrode layer 120 and second touch control electrode layer
122 can be pair of lamina tin indium oxide (DITO) structure.In some embodiments, the first touch control electrode layer 120 and the second touch-control electricity
The pattern of pole layer 122 is identical, is, for example, square, rectangle, parallelogram, triangle or trapezoidal.In other embodiments,
First touch control electrode layer 120 is different from the pattern of second touch control electrode layer 122.In other embodiments, the first touch control electrode layer
120 with the pattern complementary of second touch control electrode layer 122.In the present embodiment, in bottom surface phase delay 1/4 wavelength wave plate 100
Refer to phase delay R in faceeLess than 300 nanometers, phase delay R e.g. in faceeFor 250,200,150,100 nanometers.
The present invention provides a kind of integrated touch control display, and it includes composite base plate, bottom Polarizer and display panel, wherein
Display panel is between composite base plate and bottom Polarizer.In more detail, tradition is located at display by integrated touch control display
One of two Polarizers of panel both sides are replaced as a composite base plate.This composite base plate is by 1/4 ripple of phase delay in bottom surface
Long wave plate, touch control electrode layer, polarizing layer and protective layer are formed.In the embodiment of the present invention, integrated touch control display it is compound
Substrate has 1/4 wavelength wave plate.Therefore, linear polarization can be produced after light is by the bottom Polarizer of this integrated touch control display
Light, this linearly polarized light after 1/4 wavelength wave plate in composite base plate again by that can produce elliptically polarized light.Therefore, the present invention is implemented
The integrated touch control display that example provides can solve conventional touch display, when polarization direction and the observer of linearly polarized light match somebody with somebody
The problem of polarization direction for the sunglasses (tool linearly polarized light characteristic) worn can produce blank screen when vertical.Also, this 1/4 wavelength wave plate
It is the material for using phase delay in bottom surface, therefore also solves in conventional touch display, when the substrate of touch control electrode is modeling
During material, the problem of rainbow line can be produced.In addition, the integrated touch control display of the embodiment of the present invention is shown compared to conventional touch
Utensil has relatively thin integral thickness.
Although the present invention is disclosed above with embodiment, so it is not limited to the present invention, any art
Middle tool usually intellectual, it is without departing from the spirit and scope of the invention, therefore of the invention when a little change and retouching can be made
Protection domain when depending on after attached claim institute defender be defined.
Claims (8)
1. a kind of integrated touch control display, it is characterised in that include：
One composite base plate, comprising：
1/4 wavelength wave plate of phase delay in one bottom surface；
One touch control electrode layer, it is arranged at least on a surface of 1/4 wavelength wave plate for phase delay in the bottom surface；
One protective layer；And
One polarizing layer, it is arranged between 1/4 wavelength wave plate of phase delay in the bottom surface and the protective layer；
One bottom Polarizer；And
One display panel, between the composite base plate and the bottom Polarizer.
2. integrated touch control display as claimed in claim 1, it is characterised in that further include:
One cover sheet；And
One optical cement, connect the composite base plate and the cover sheet.
3. integrated touch control display as claimed in claim 1, it is characterised in that 1/4 wavelength of phase delay in the bottom surface
Phase delay is less than 300 nanometers in the face of wave plate.
4. integrated touch control display as claimed in claim 2, it is characterised in that the touch control electrode layer is individual layer touch-control electricity
Pole layer.
5. integrated touch control display as claimed in claim 4, it is characterised in that it is low that the individual layer touch control electrode layer is arranged on this
In face between the 1/4 wavelength wave plate and the polarizing layer of phase delay.
6. integrated touch control display as claimed in claim 4, it is characterised in that it is low that the individual layer touch control electrode layer is arranged on this
In face between the 1/4 wavelength wave plate and the optical cement of phase delay.
7. integrated touch control display as claimed in claim 2, it is characterised in that the touch control electrode layer includes one of corresponding
First touch control electrode layer and a second touch control electrode layer, first touch control electrode layer are arranged at 1/4 of phase delay in the bottom surface
Between wavelength wave plate and the optical cement, the second touch control electrode layer be arranged at 1/4 wavelength wave plate of phase delay in the bottom surface with
Between the polarizing layer.
8. integrated touch control display as claimed in claim 1, it is characterised in that it is micro- that the thickness of the composite base plate is less than 170
Rice.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710566627.7A CN107340922A (en) | 2017-07-12 | 2017-07-12 | Integrated touch control display |
| TW106128640A TWI637302B (en) | 2017-07-12 | 2017-08-23 | Integrated touch display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710566627.7A CN107340922A (en) | 2017-07-12 | 2017-07-12 | Integrated touch control display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107340922A true CN107340922A (en) | 2017-11-10 |
Family
ID=60218674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710566627.7A Pending CN107340922A (en) | 2017-07-12 | 2017-07-12 | Integrated touch control display |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107340922A (en) |
| TW (1) | TWI637302B (en) |
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| CN110290243A (en) * | 2019-06-24 | 2019-09-27 | Oppo广东移动通信有限公司 | Display device, electronic equipment and image acquiring method |
| CN111200001A (en) * | 2020-01-10 | 2020-05-26 | 京东方科技集团股份有限公司 | Display panel and display device |
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Also Published As
| Publication number | Publication date |
|---|---|
| TW201908943A (en) | 2019-03-01 |
| TWI637302B (en) | 2018-10-01 |
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Application publication date: 20171110 |
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