CN106354341A - Touch display panel - Google Patents
Touch display panel Download PDFInfo
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- CN106354341A CN106354341A CN201610996874.6A CN201610996874A CN106354341A CN 106354341 A CN106354341 A CN 106354341A CN 201610996874 A CN201610996874 A CN 201610996874A CN 106354341 A CN106354341 A CN 106354341A
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- Prior art keywords
- touch
- wave plate
- electrode layer
- control electrode
- touch control
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- 238000007789 sealing Methods 0.000 claims description 2
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- 238000005452 bending Methods 0.000 abstract description 15
- 238000002834 transmittance Methods 0.000 abstract description 4
- 238000003475 lamination Methods 0.000 abstract description 2
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- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 3
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Classifications
-
- 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
- G06F3/0412—Digitisers structurally integrated in a display
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention discloses a touch display panel, comprising: a display component; the linear polarizer is formed on one side of the display assembly; an optical film positioned between the linear polarizer and the display module, the optical film comprising: 1/2 lambda wave plate; the 1/4 lambda wave plate is formed on one side, away from the linear polarizer, of the 1/2 lambda wave plate; a touch layer comprising: the first touch electrode layer is formed on any one side of the 1/2 lambda wave plate or the 1/4 lambda wave plate; and the second touch electrode layer is formed on one side of the linear polarizer, which is far away from the 1/2 lambda wave plate. The touch control film layers are arranged between the polaroid and the display assembly, and each touch control film layer is respectively bonded with the 1/2 lambda wave plate and the 1/4 lambda wave plate to form the integrated composite film, so that the lamination thickness of the panel is reduced, the bending resistance and the optical transmittance of the panel are improved, the light and thin requirements of products are met, and the flexible display panel is suitable for flexible display panels.
Description
Technical field
The present invention relates to technical field of touch control, more particularly, to a kind of touch-control display panel.
Background technology
Touch screen is as a kind of special computer peripheral equipment, using the teaching of the invention it is possible to provide a man-machine interaction between electronic system and user
Interface, and be widely used in many fields, for example, in mobile phone, personal digital assistant (personal
Digitalassistant, pda), game machine, liquid crystal display (liquid crystal display, lcd), plasma show
Show device (plasmadisplay panel, pdp) etc..
The structure of existing touch display panel structure adopts the scheme of more ripe plug-in touch-control film layer (ito) mostly, but
Exist thickness thicker, bending property difference and the low problem of optical transmittance.
Content of the invention
The problem existing for prior art, it is an object of the invention to provide a kind of lifting panel bending property and optical lens
Cross rate, meet the touch-control display panel of the lightening requirement of product.
For achieving the above object, the one side of the disclosure provides a kind of touch-control display panel, comprising:
Display module；
Line polarisation piece, is formed at the side of described display module；
Optical thin film, positioned between described line polarisation piece and described display module, described optical thin film includes:
1/2 λ wave plate；
1/4 λ wave plate, is formed at the side away from described line polarisation piece for the described 1/2 λ wave plate；
Touch control layer, comprising:
First touch control electrode layer, is formed at described 1/2 λ wave plate or any side of described 1/4 λ wave plate；And
Second touch control electrode layer, is formed at the side away from described 1/2 λ wave plate for the described line polarisation piece.
In a kind of exemplary embodiment of the disclosure, described first touch control electrode layer be formed at described 1/2 λ wave plate away from
On the first surface of described line polarisation piece；Described second touch control electrode layer is formed at described line polarisation piece away from described 1/2 λ wave plate
First surface on；
Described first touch control electrode layer and described 1/4 λ wave plate have glue between the first surface of described line polarisation piece
Layer.
In a kind of exemplary embodiment of the disclosure, it is close that described first touch control electrode layer is formed at described 1/2 λ wave plate
On the second surface of described line polarisation piece；Described second touch control electrode layer is formed at described line polarisation piece away from described 1/2 λ wave plate
First surface on；
Described 1/2 λ wave plate away from described line polarisation piece first surface and described 1/4 λ wave plate near described line polarisation piece
First surface between there is glue-line.
In a kind of exemplary embodiment of the disclosure, it is close that described first touch control electrode layer is formed at described 1/4 λ wave plate
On the first surface of described line polarisation piece；Described second touch control electrode layer is formed at described line polarisation piece away from described 1/2 λ wave plate
First surface on；
Described first touch control electrode layer and described 1/2 λ wave plate have glue between the first surface away from described line polarisation piece
Layer.
In a kind of exemplary embodiment of the disclosure, described first touch control electrode layer be formed at described 1/4 λ wave plate away from
On the second surface of described line polarisation piece；Described second touch control electrode layer is formed at described line polarisation piece away from described 1/2 λ wave plate
First surface on；
Described 1/2 λ wave plate away from described line polarisation piece first surface and described 1/4 λ wave plate near described line polarisation piece
First surface between there is glue-line
In a kind of exemplary embodiment of the disclosure, also include:
First flexible PCB, is arranged at the non-display area of the first end of described touch-control display panel, is electrically connected to institute
State the first touch control electrode layer and/or described second touch control electrode layer；
Control circuit, described first flexible PCB is electrically connected with described control circuit.
In a kind of exemplary embodiment of the disclosure, described first flexible PCB is with described first touch control electrode layer even
Connect；
Described touch-control display panel also includes the second flexible PCB, is arranged on the first end of described touch-control display panel
Non-display area, the pre- described second touch control electrode layer electrical connection of described second flexible PCB；
Described second flexible PCB is electrically connected with described control circuit.
In a kind of exemplary embodiment of the disclosure, described 1/2 λ wave plate protrudes from the first end of described display floater
Described 1/4 λ wave plate and described line polarisation piece.
In a kind of exemplary embodiment of the disclosure, described 1/2 λ wave plate and described 1/4 λ wave plate are liquid crystal cloth of coating-type ripple
Piece.
In a kind of exemplary embodiment of the disclosure, described first touch control electrode layer includes parallel interval in the first direction
Multiple first electrodes of arrangement, described second touch control electrode layer includes multiple second electricity of parallel interval arrangement in a second direction
Pole.
In a kind of exemplary embodiment of the disclosure, described first touch control electrode layer and described second touch control electrode layer are
Grid electrode.
In a kind of exemplary embodiment of the disclosure, described display module includes:
Flexible substrate；
Organic illuminating element, is formed in described flexible substrate；And
Sealing film, for encapsulating described organic illuminating element.
The touch-control film layer of the present invention is built between polaroid and display module, and each touch-control film layer respectively with 1/2 λ ripple
Piece and 1/4 λ wave plate are adhesively fixed the laminated film being integrated, and are no longer necessary in addition arrange touch-control substrate, reduce panel
Laminated thickness, thus improve buckle resistance and the optical transmittance of panel, meeting the lightening requirement of product, and being applicable to soft
Property display floater.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 a shows the schematic cross-section of touch-control display panel；
Fig. 1 b shows the structural representation of polaroid；
Fig. 2 shows the schematic cross-section of the touch-control display panel of one embodiment of the invention；
Fig. 3 shows the schematic cross-section of the touch-control display panel of one embodiment of the invention；
Fig. 4 shows the schematic cross-section of the touch-control display panel of one embodiment of the invention；
Fig. 5 shows the schematic cross-section of the touch-control display panel of one embodiment of the invention；
Fig. 6 shows that the section of the touch-control display panel that one embodiment of the invention is formed in patterned coated mode is illustrated
Figure；
Fig. 7 shows the schematic cross-section of the touch-control display panel of one embodiment of the invention；
Fig. 8 a-8b shows the structural representation of touch control electrode layer in the touch-control display panel of one embodiment of the invention.
Specific embodiment
It is described more fully with example embodiment referring now to accompanying drawing.However, example embodiment can be with multiple shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；On the contrary, these embodiments are provided so that the present invention will
Fully and completely, and by the design of example embodiment comprehensively convey to those skilled in the art.Attached in figure identical
Icon note represents same or similar structure, thus will omit repetition thereof.
Described feature, structure or characteristic can combine in one or more embodiments in any suitable manner
In.In the following description, many details are provided thus being given, embodiments of the present invention to be fully understood.However,
One of ordinary skill in the art would recognize that, there is no one of specific detail or more, or adopt other methods, constituent element, material
Material etc. is it is also possible to put into practice technical scheme.In some cases, be not shown in detail or describe known features, material or
Person's operation is to avoid the fuzzy present invention.
The accompanying drawing of the present invention is only used for illustrating relative position relation, and the thickness at some positions employs the plotting mode lavished praise on oneself
In order to understand, the thickness in accompanying drawing does not represent the proportionate relationship of actual thickness.
As shown in Figure 1a, touch-control display panel includes display module 110, polaroid 120, touch-control film layer 130 and glass cover
Plate 140, wherein display module 110, polaroid 120, touch-control film layer 130 and glass cover-plate 140 sequentially stack setting.Display module
110 include substrate 1101, thin film transistor (TFT) array 1102, light-emitting component 1103 and encapsulating film 1104.The encapsulation of display module 110
Barrier film (barrier film) 150 is formed with film 1104, barrier film 150 adheres to polaroid by the first glue-line 160
120, pass through the second glue-line 170 between touch-control film layer 130 and polaroid 120 and between touch-control film layer 130 and glass cover-plate 140
And second glue-line 180, will be bonding with polaroid 120 and glass cover-plate 140 respectively to the lower surface of touch-control film layer 130 and upper surface
Fixing.Touch-control film layer 130 and polaroid 120 have independent substrate film layer, and the substrate film layer material of touch control layer is generally pet
(polyethylene terephthalate) or cop (cyclic olefin polymer) etc..
As shown in Figure 1 b, be polaroid 120 structural representation.Polaroid 120 be commonly included in figure direction from down to
On: λ/4 wave plate 1201, λ/2 wave plate 1202 and line polarisation piece 1203.λ/4 wave plate 1201 and λ/2 wave plate 1202 collectively constitute phase
Potential difference film, the material of phase retardation film is generally cop (cyclic olefin polymer).
Inventor it has been investigated that, using the display floater of the structure in above-mentioned Fig. 1～2, often there are the following problems:
(1) because touch-control film layer 130 and polaroid 120 have independent substrate film layer, lead to the film layer in display floater
More, considerably increase the integral thickness of display floater, this problem affects bigger for flexible oled display floater；
Flexible oled display floater is made up of soft material, the flexible panel of deformable.Of the prior art soft
Property display floater typically adopt oled (organic light-emitting diode, Organic Light Emitting Diode) technology, this
The advantage such as technology has low-power consumption, small volume, light, display mode is various, is therefore widely used in various electronic products；So
And the thickness of display floater larger when, undoubtedly the bending of overall display floater can be affected very big；
(2) structure member adopting in display floater is more, relatively costly；Simultaneously in the preparation process of display floater,
Need first to prepare and prepare polaroid 120 in a substrate film layer, another substrate film layer prepares touch-control film layer 130, then will
Both combine, and numerous and diverse by this technics comparing, production efficiency is not high.
Meanwhile, inventor also tests a kind of structure of display floater, and wherein touch-control film layer is located at polaroid and display group
Between part, and touch control layer has single touch-control substrate film layer.Using this structure, increase further and there is the aobvious of touch control layer
Show the technology difficulty of panel, and also do not solve above-mentioned two technical problem still there is larger thickness and not pliable,
And there is higher production cost.
In addition, for the thickness reducing display floater, a kind of skill being integrated in touch control layer in display module can be adopted
Art scheme, for example, can be arranged at same metal level by touch control electrode layer with grid line and/or show electrode.Using this technical side
Case, reduces the thickness of display floater to a certain extent, enhances the bending performance of display floater, however, touch control layer is integrated
In display layer, higher technological requirement is all proposed to touch control layer and display layer, that is, considerably increase in display floater processing procedure
Technology difficulty, correspondingly increases production cost；Meanwhile, touch control layer is integrated with display layer, touch control layer is easily to aobvious
Show that the display effect of layer produces harmful effect；During later maintenance, if touch control layer occurs in that fault, it is right in the lump to need
Display layer carries out maintenance and changes, and considerably increases maintenance cost.
In order to solve the above problems, the present invention provides a kind of minimizing panel lamination, and lifting panel bending property and optics pass through
The touch-control display panel of rate.This touch-control display panel includes display module；Line polarisation piece, is formed at the one of described display module
Side；Optical thin film, positioned between described line polarisation piece and described display module, described optical thin film includes: 1/2 λ wave plate, is formed
Between described line polarisation piece and described display module；1/4 λ wave plate, is formed at described 1/2 λ wave plate away from described line polarisation piece
Side；Touch control layer, comprising: the first touch control electrode layer, is formed on described 1/2 λ wave plate or any side of described 1/4 λ wave plate；
And second touch control electrode layer, it is formed at the side away from described 1/2 λ wave plate for the described line polarisation piece.
It is described with reference to the touch-control display panel that specific embodiment the present invention is provided.
Referring to Fig. 2, Fig. 2 shows the sectional view of contact panel according to embodiments of the present invention.Touch-control display panel includes
Line polarisation piece 210,1/2 λ wave plate 220,1/4 λ wave plate 230, the first touch control electrode layer 240, second touch control electrode layer 250 and display
Assembly 260.
1/2 λ wave plate 220 is formed at the side of line polarisation piece 210.1/4 λ wave plate 230 is formed at 1/2 λ wave plate 220 away from line
The side of polaroid 210, namely 1/2 λ wave plate 220 is positioned between 1/4 λ wave plate 230 and line polarisation piece 210.By said structure,
Natural light is changed into line polarized light by line polarisation piece 210, and this line polarized light rotates, partially through 1/2 λ wave plate 220, its polarization direction
The direction that shakes rotates the 1/4 λ wave plate 230 that rear light passes through and is changed into elliptically polarized light or circularly polarized light.When this elliptically polarized light or circle
Polarized light via contact panel interior metal touch control electrode layer or other can produce after the metal layer reflection of reflection, can be via 1/
4 λ wave plates 230,1/2 λ wave plate 220 and line polarisation piece 210 and be partially offset or be completely counterbalanced by, and then reduce contact panel
Reflectance.
Wherein it is contemplated that the integral thickness of contact panel 200, simultaneously take account of 1/2 λ wave plate 220 and 1/4 λ wave plate 230
Vertical phase is poor, and the thickness range of the thickness range 1/2 λ wave plate 220 of 1/2 λ wave plate 220 and 1/4 λ wave plate 230 can be 30 μm
To 50 μm.The thickness range of 1/4 λ wave plate 230 can also be 30 μm to 50 μm.1/2 λ wave plate 220 and the material of 1/4 λ wave plate 230
Can be Merlon or cyclic olefin polymer.Those skilled in the art can be real according to contact panel thickness and process requirement
Now more change case, here not repeats one by one.
First touch control electrode layer 240 is formed on the first surface away from described line polarisation piece 210 for the 1/2 λ wave plate 220, also
I.e. the first touch control electrode layer 240 is formed at the lower surface of 1/2 λ wave plate 220 in diagram；Second touch control electrode layer 250 is formed at institute
State on the first surface away from described 1/2 λ wave plate 220 for the line polarisation piece 210, that is, second touch control electrode layer 250 is formed at diagram
The upper surface of center line polaroid 210；First touch control electrode layer 240 and described 1/4 λ wave plate 230 are near described line polarisation piece 210
It is provided with upper surface and the polaroid 210 of glue-line 270,1/2 λ wave plate 220 between first surface (upper surface of 1/4 λ wave plate 230)
Lower surface bonds, each layer above is adhesively fixed formation composite construction.The composite construction being formed passes through glue-line and polarisation again
Piece 210 and display module 260 are adhesively fixed and obtain touch-control display panel.
In the present embodiment, the first touch control electrode layer 240 is formed at the lower surface of 1/2 λ wave plate 220, i.e. the first touch control electrode layer
240 are formed directly on 1/2 λ wave plate 220, and no longer arrange other touch-control substrate, decrease a hierarchical structure, and then subtract
Lack the thickness of display floater, beneficial to the bending of display floater.Similarly, second touch control electrode layer 250 is formed at line polarisation piece
210 upper surface, that is, second touch control electrode layer 250 be formed directly on 1/4 λ wave plate 230, and other touch-control lining is no longer set
Bottom, further reduces a hierarchical structure, and then decreases the thickness of display floater, beneficial to the bending of display floater.
Additionally, the present embodiment is by configuring 1/2 λ wave plate and 1/4 λ wave plate, it is also possible that passing through 1/2 λ wave plate and 1/4 λ
The light of wave plate has minimum dispersion, thus lifting contact panel is for the reflection preventing ability of broadband light further.
Referring to Fig. 3, Fig. 3 shows the sectional view of touch-control display panel 300 according to embodiments of the present invention.Touch-control display surface
Plate includes line polarisation piece 310,1/2 λ wave plate 320,1/4 λ wave plate 330, the first touch control electrode layer 340, second touch control electrode layer 350
With display module 360.
In the present embodiment, 1/2 λ wave plate 320 is identical with Fig. 2 embodiment with set location with the structure of 1/4 λ wave plate 330,
Will not be described here.The present embodiment is with the difference of Fig. 2 embodiment, and the set location of the first touch control electrode layer 340 is different.
First touch control electrode layer 340 is formed at 1/2 λ wave plate 320 on the second surface of described line polarisation piece 310, also
I.e. the first touch control electrode layer 340 is formed at the upper surface of 1/2 λ wave plate 320 in diagram；Second touch control electrode layer 350 is formed at institute
State on the first surface away from described 1/2 λ wave plate 320 for the line polarisation piece 310, that is, second touch control electrode layer 350 is formed at diagram
The upper surface of center line polaroid 310；1/2 λ wave plate 320 away from described line polarisation piece 310 first surface (1/2 λ wave plate 320
Lower surface) with described 1/4 λ wave plate 330 near described line polarisation piece 310 first surface (upper surface of 1/4 λ wave plate 330) it
Between be provided with glue-line 370, by integral adhesive fixation to form composite construction.The composite construction being formed passes through glue-line and polaroid again
310 and display module 360 be adhesively fixed and obtain touch-control display panel.
In the present embodiment, the first touch control electrode layer 340 is formed at the upper surface of 1/2 λ wave plate 320, second touch control electrode layer
350 upper surfaces being formed at line polarisation piece 310, that is, the first touch control electrode layer 340 is formed directly on 1/2 λ wave plate 320,
Two touch control electrode layers 350 are formed directly on 1/4 λ wave plate 330, and no longer arrange other touch-control substrate and decrease two levels
Structure, and then decrease the thickness of display floater, beneficial to the bending of display floater..
Additionally, the present embodiment is by configuring 1/2 λ wave plate and 1/4 λ wave plate, it is also possible that passing through 1/2 λ wave plate and 1/4 λ
The light of wave plate has minimum dispersion, thus lifting contact panel is for the reflection preventing ability of broadband light further.
Referring to Fig. 4, Fig. 4 shows the sectional view of touch-control display panel 300 according to embodiments of the present invention.Touch-control display surface
Plate includes line polarisation piece 410,1/2 λ wave plate 420,1/4 λ wave plate 430, the first touch control electrode layer 440, second touch control electrode layer 450
With display module 460.
In the present embodiment, 1/2 λ wave plate 420 is identical with Fig. 2 embodiment with set location with the structure of 1/4 λ wave plate 430,
Will not be described here.The present embodiment is with the difference of Fig. 2 embodiment, and the set location of the first touch control electrode layer 440 is different.
First touch control electrode layer 440 is formed at 1/4 λ wave plate 430 on the first surface of described line polarisation piece 410, also
I.e. the first touch control electrode layer 440 is formed at the upper surface of 1/4 λ wave plate 430 in diagram；Second touch control electrode layer 450 is formed at institute
State on the first surface away from described 1/2 λ wave plate 420 for the line polarisation piece 410, that is, second touch control electrode layer 450 is formed at diagram
The upper surface of center line polaroid 410；Described first touch control electrode layer 450 and described 1/2 λ wave plate 420 are away from described line polarisation piece
It is provided with glue-line 470 between 410 first surface (lower surface of 1/2 λ wave plate 420), integral adhesive fixation is compound to be formed
Structure.The composite construction being formed passes through glue-line again and is adhesively fixed and obtains touch-control display surface with polaroid 410 and display module 460
Plate.
In the present embodiment, the first touch control electrode layer 440 is formed at the upper surface of 1/4 λ wave plate 430, second touch control electrode layer
450 upper surfaces being formed at line polarisation piece 410, that is, the first touch control electrode layer 440 is formed directly on 1/4 λ wave plate 430,
Two touch control electrode layers 450 are formed directly on line polarisation piece 410, and no longer arrange other touch-control substrate, decrease two layers
Level structure, and then decrease the thickness of display floater, beneficial to the bending of display floater.
Additionally, the present embodiment is by configuring 1/2 λ wave plate and 1/4 λ wave plate, it is also possible that passing through 1/2 λ wave plate and 1/4 λ
The light of wave plate has minimum dispersion, thus lifting contact panel is for the reflection preventing ability of broadband light further.
Referring to Fig. 5, Fig. 5 shows the sectional view of touch-control display panel 300 according to embodiments of the present invention.Touch-control display surface
Plate includes line polarisation piece 510,1/2 λ wave plate 520,1/4 λ wave plate 530, the first touch control electrode layer 540, second touch control electrode layer 550
With display module 560.
In the present embodiment, 1/2 λ wave plate 520 is identical with Fig. 2 embodiment with set location with the structure of 1/4 λ wave plate 530,
Will not be described here.The present embodiment is with the difference of Fig. 2 embodiment, and the set location of the first touch control electrode layer 540 is different.
First touch control electrode layer 540 is formed on the second surface away from described line polarisation piece 510 for the 1/4 λ wave plate 530, also
I.e. the first touch control electrode layer 540 is formed at the lower surface of 1/4 λ wave plate 530 in diagram；Second touch control electrode layer 550 is formed at institute
State on the first surface away from described 1/2 λ wave plate 520 for the line polarisation piece 510, that is, second touch control electrode layer 550 is formed at diagram
The upper surface of center line polaroid 510；Described 1/2 λ wave plate 520 is away from first surface (the 1/2 λ wave plate of described line polarisation piece 510
520 lower surface) with described 1/4 λ wave plate 530 near described line polarisation piece 510 the first surface (upper table of 1/4 λ wave plate 530
Face) between be provided with glue-line 570, by integral adhesive fixation to form composite construction.Formed composite construction again pass through glue-line with
Polaroid 510 and display module 560 are adhesively fixed and obtain touch-control display panel.
In the present embodiment, the first touch control electrode layer 540 is formed at the lower surface of 1/4 λ wave plate 530, second touch control electrode layer
550 upper surfaces being formed at line polarisation piece 510, that is, the first touch control electrode layer 540 is formed directly on 1/4 λ wave plate 530,
Two touch control electrode layers 550 are formed directly on line polarisation piece 510, and no longer arrange other touch-control substrate, decrease two layers
Level structure, and then decrease the thickness of display floater, beneficial to the bending of display floater.
Additionally, the present embodiment is by configuring 1/2 λ wave plate and 1/4 λ wave plate, it is also possible that passing through 1/2 λ wave plate and 1/4 λ
The light of wave plate has minimum dispersion, thus lifting contact panel is for the reflection preventing ability of broadband light further.
The 1/2 λ wave plate of above-described embodiment and 1/4 λ wave plate are all to illustrate taking independent base material as a example, however, 1/2 λ
Wave plate and 1/4 λ wave plate can also for liquid crystal cloth of coating-type wave plate that is to say, that in the present embodiment 1/2 λ wave plate and 1/4 λ wave plate also may be used
Formed with the patterned manner by coating.
Fig. 6 shows the schematic cross-section of the touch-control display panel of one embodiment of the invention.As shown in fig. 6, touch-control shows
Panel includes display module 610, composite construction 620, polaroid 630 and glass cover-plate 640.
Display module 610 includes sequentially stacking the flexible substrates 6101 of setting, thin film transistor (TFT) array 6102, oled
6103 and encapsulating film 6104.So that display module is as flexible panel as a example illustrate in the present embodiment, but the present invention is not with this
It is limited.
It is flat that composite construction 620 includes 1/2 λ wave plate 6201,1/4 λ wave plate 6202, the first touch control electrode layer 6203, first
Layer 6205 and the second flatness layer 6206.Wherein, 1/2 λ wave plate 6201 and 1/4 λ wave plate 6202 are liquid crystal cloth of coating-type wave plate, 1/4 λ ripple
Piece 6202 is to be formed at support membrane (not shown) upper surface in the way of liquid crystal coating, then adopts coating method from lower
On sequentially form the first flatness layer 6205, the first touch control electrode layer 6203, the second flatness layer 6206 and 1/2 λ wave plate 6201, finally
Remove the composite construction 620 that support membrane forms the present embodiment.The lower surface of polaroid 630 passes through glue-line 660 and composite construction 620
Bonding, the upper surface of polaroid 630 forms second touch control electrode layer 6204, then in the upper table of second touch control electrode layer 6204
Face cover glass cover plate 640, composite construction 620 and display module 610 are passed through glue-line 650 bonding formation touch-control display panel.
1/4 λ wave plate, the first touch control electrode layer and 1/2 λ wave plate and be sequentially stratification in the present embodiment, subtract further
Lack the bonding glue-line between the first touch control electrode layer and 1/2 λ wave plate and 1/4 λ wave plate, and the present embodiment shape on support membrane
Can directly remove after becoming the first touch control electrode layer, 1/2 λ wave plate and 1/4 λ wave plate, and in addition touch-control substrate is not set, reduce
Two hierarchical structures, and then decrease the thickness of display floater, beneficial to the bending of display floater.
In the composite construction of the present embodiment, the formation order of the first touch control electrode layer, 1/2 λ wave plate and 1/4 λ wave plate is corresponding
Composite construction shown in Fig. 2.It may occur to persons skilled in the art that, the first touch control electrode layer, 1/2 λ wave plate and 1/4 λ
The formation order of wave plate can be changed accordingly to obtain corresponding to the composite construction shown in Fig. 3-5.
Fig. 7 shows the sectional view of the touch-control display panel of one embodiment of the invention.
The touch-control display panel of the present embodiment also includes the first flexible PCB 290, the second flexible PCB 291 and controls
Circuit 292.
First flexible PCB 290 is arranged at the non-display area of the first end of described touch-control display panel, is electrically connected to
Described first touch control electrode layer 240.Second flexible PCB 291 is arranged on the non-display of the first end of described touch-control display panel
Region, is electrically connected to described second touch control electrode layer 250.Control circuit 292 and the first flexible PCB 290 and the second flexible electrical
Road plate 291 is electrically connected, with according to the first touch control electrode layer 240 and second touch control electrode layer 250 sensing touching signals, really
Determine position of touch.Wherein, 1/2 λ wave plate 220 can slightly project line polarisation piece 210 and 1/4 λ wave plate 230, so so that
First flexible PCB 290 extends to non-display area further, to avoid laminated film when attaching, flexible PCB with multiple
Disturb between each film layer in conjunction thin film and cannot fit smooth, thus affecting the touch-control sensing precision of touch-control thin film.
Additionally, the quantity of flexible PCB is not limited thereto, the first touch control electrode layer and second touch control electrode layer also may be used
To share same flexible PCB, to simplify touch display panel structure.
The touch-control display panel of the present embodiment is to illustrate taking Fig. 2 as a example, it may occur to persons skilled in the art that, 1/2 λ
Wave plate projects slightly from the structure of line polarisation piece and 1/4 λ wave plate it is also possible to be applied in the touch-control display panel shown in Fig. 3-5.
Fig. 8 a-8b shows the structural representation of touch control electrode layer in the touch-control display panel of one embodiment of the invention.
As shown in Figure 8 a, the first touch control electrode layer 240 includes multiple first strips of parallel interval arrangement in the first direction
Electrode 2401, described second touch control electrode layer 250 includes multiple second strip shaped electric poles of parallel interval arrangement in a second direction
2501, described first strip shaped electric poles 2401 and described second strip shaped electric poles 2501 overlap mutually.With the first strip electricity in the present embodiment
Pole and the second strip shaped electric poles mutually orthogonal as a example illustrate, but the present invention is not limited thereto.
As shown in Figure 8 b, described first touch control electrode layer 240 and described second touch control electrode layer 250 are grid electrode
2401 ', 2501 ', it is possible to reduce trace resistances reduce parasitic capacitance, lift touch control characteristics further.Described grid electrode
2401 ', 2501 ' material is metal, for example, can be ag, mo, al, ti, cu or other alloy materials, nanometer conductive material
Deng.Grid electrode 2401 ', 2501 ' can adopt the technique manufacture such as nano impression, inkjet printing, gold-tinted.
The material of touch control electrode listed herewith selects to be a kind of optional embodiment, in actual applications, touch-control
The material of electrode selects to be not limited to above-named situation.
The mutual capacitance touch control layer of the present invention can be respectively provided with the electrode of different directions on two touch control electrode layers, and two
Electrode on individual touch control electrode layer is orthogonal, and because the electrode framework on two touch control electrode layers is in different surfaces, it intersects
Place forms a capacitive node, and a touch control electrode layer can be used as driving layer, and a touch control electrode layer can be used as inductive layer.When
When electric current flows through the wire driving in layer, if there is the signal of capacitance variations in the external world, electricity on another layer conductor will be caused
Hold the change of node, the change of detecting capacitance can be measured by inductive layer and the electronic loop being attached thereto, according to
The induced signal measuring carries out touch-control positioning.
The touch-control film layer of the present invention is built between polaroid and display module, and each touch-control film layer respectively with 1/2 λ ripple
Piece and 1/4 λ wave plate are adhesively fixed the laminated film being integrated, and reduce the laminated thickness of panel, thus improve the anti-of panel
Bending property and optical transmittance, meet the lightening requirement of product, and are applicable to flexible display panels.
To be further described with the contrast of several comparative examples and the present invention below:
Comparative example 1: referring to shown in Fig. 1 a～1b, display floater includes display module 110, polaroid 120 and touch-control film layer
130, wherein display module 110, polaroid 120, touch-control film layer 130 and glass cover-plate 140 sequentially stacks setting.And touch-control film layer
130 have independent touch-control substrate film layer.
Comparative example 2: display floater includes display module, polaroid and touch-control film layer, touch-control film layer is located at polaroid and shows
Show between assembly, and touch-control film layer has independent touch-control substrate film layer；
Comparative example 3: display floater includes display module, polaroid and touch-control film layer, polaroid is arranged on display module,
Touch control layer is integrated in display module.
Embody in table 1 below the display floater of the present invention actual processing procedure with use in comparative example 1～3 in bending property
Energy, portable performance, the Contrast on effect of technology difficulty, production cost and maintenance cost several respects:
Table 1 display floater Contrast on effect table
| Bending performance | Portable performance | Technology difficulty | Production cost | Maintenance cost | |
| The present invention | Very good | Preferably | Preferably | Preferably | Preferably |
| Comparative example 1 | Difference | Difference | Typically | Poor | Poor |
| Comparative example 2 | Difference | Difference | Typically | Poor | Poor |
| Comparative example 3 | Preferably | Preferably | Difference | Difference | Difference |
Wherein, technique effect is successively decreased successively by very good, preferable, general, poor, difference.
More than it is particularly shown and described the illustrative embodiments of the present invention.It should be understood that the invention is not restricted to institute
Disclosed embodiment, on the contrary, it is intended to cover and comprising various modifications within the scope of the appended claims and equivalent put
Change.
Claims (12)
1. a kind of touch-control display panel is it is characterised in that include:
Display module；
Line polarisation piece, is formed at the side of described display module；
Optical thin film, positioned between described line polarisation piece and described display module, described optical thin film includes:
1/2 λ wave plate；
1/4 λ wave plate, is formed at the side away from described line polarisation piece for the described 1/2 λ wave plate；
Touch control layer, comprising:
First touch control electrode layer, is formed at described 1/2 λ wave plate or any side of described 1/4 λ wave plate；And
Second touch control electrode layer, is formed at the side away from described 1/2 λ wave plate for the described line polarisation piece.
2. touch-control display panel as claimed in claim 1 is it is characterised in that described first touch control electrode layer is formed at described 1/
On the first surface away from described line polarisation piece for the 2 λ wave plates；Described second touch control electrode layer is formed at described line polarisation piece away from institute
State on the first surface of 1/2 λ wave plate；
Described first touch control electrode layer and described 1/4 λ wave plate have glue-line between the first surface of described line polarisation piece.
3. touch-control display panel as claimed in claim 1 is it is characterised in that described first touch control electrode layer is formed at described 1/
2 λ wave plates are on the second surface of described line polarisation piece；Described second touch control electrode layer is formed at described line polarisation piece away from institute
State on the first surface of 1/2 λ wave plate；
Described 1/2 λ wave plate away from described line polarisation piece first surface and described 1/4 λ wave plate near the of described line polarisation piece
Between one surface, there is glue-line.
4. touch-control display panel as claimed in claim 1 is it is characterised in that described first touch control electrode layer is formed at described 1/
4 λ wave plates are on the first surface of described line polarisation piece；Described second touch control electrode layer is formed at described line polarisation piece away from institute
State on the first surface of 1/2 λ wave plate；
Described first touch control electrode layer and described 1/2 λ wave plate have glue-line between the first surface away from described line polarisation piece.
5. touch-control display panel as claimed in claim 1 is it is characterised in that described first touch control electrode layer is formed at described 1/
On the second surface away from described line polarisation piece for the 4 λ wave plates；Described second touch control electrode layer is formed at described line polarisation piece away from institute
State on the first surface of 1/2 λ wave plate；
Described 1/2 λ wave plate away from described line polarisation piece first surface and described 1/4 λ wave plate near the of described line polarisation piece
Between one surface, there is glue-line.
6. touch-control display panel as claimed in claim 1 is it is characterised in that also include:
First flexible PCB, is arranged at the non-display area of the first end of described touch-control display panel, is electrically connected to described
One touch control electrode layer and/or described second touch control electrode layer；
Control circuit, described first flexible PCB is electrically connected with described control circuit.
7. touch-control display panel as claimed in claim 6 is it is characterised in that described first flexible PCB touches with described first
Control electrode layer connects；
Described touch-control display panel also includes the second flexible PCB, and the non-of first end being arranged on described touch-control display panel shows
Show region, the pre- described second touch control electrode layer electrical connection of described second flexible PCB；
Described second flexible PCB is electrically connected with described control circuit.
8. touch-control display panel as claimed in claims 6 or 7 is it is characterised in that described 1/2 λ wave plate is in described display floater
First end protrude from described 1/4 λ wave plate and described line polarisation piece.
9. touch-control display panel as claimed in claim 1 is it is characterised in that described 1/2 λ wave plate and described 1/4 λ wave plate are liquid
Brilliant cloth of coating-type wave plate.
10. touch-control display panel as claimed in claim 1 is it is characterised in that described first touch control electrode layer is included along first
Multiple first electrodes of direction parallel interval arrangement, described second touch control electrode layer includes parallel interval arrangement in a second direction
Multiple second electrodes.
11. touch-control display panels as claimed in claim 1 are it is characterised in that described first touch control electrode layer and described second
Touch control electrode layer is grid electrode.
12. touch-control display panels as claimed in claim 1 are it is characterised in that described display module includes:
Flexible substrate；
Organic illuminating element, is formed in described flexible substrate；And
Sealing film, for encapsulating described organic illuminating element.
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| CN201610996874.6A CN106354341B (en) | 2016-11-11 | 2016-11-11 | Touch display panel |
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|---|---|---|---|
| CN201610996874.6A CN106354341B (en) | 2016-11-11 | 2016-11-11 | Touch display panel |
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