CN110162199A - Touch panel and preparation method thereof - Google Patents
Touch panel and preparation method thereof Download PDFInfo
- Publication number
- CN110162199A CN110162199A CN201810148330.3A CN201810148330A CN110162199A CN 110162199 A CN110162199 A CN 110162199A CN 201810148330 A CN201810148330 A CN 201810148330A CN 110162199 A CN110162199 A CN 110162199A
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- China
- Prior art keywords
- cover board
- light source
- shielding layer
- diffusion layer
- layer
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- 238000002360 preparation method Methods 0.000 title description 3
- 238000009792 diffusion process Methods 0.000 claims abstract description 72
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 95
- 239000002360 explosive Substances 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 229910052738 indium Inorganic materials 0.000 description 8
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 8
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 229910052733 gallium Inorganic materials 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 description 3
- 239000002041 carbon nanotube Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 description 2
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical compound [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 description 2
- JAONJTDQXUSBGG-UHFFFAOYSA-N dialuminum;dizinc;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Zn+2].[Zn+2] JAONJTDQXUSBGG-UHFFFAOYSA-N 0.000 description 2
- 229910000449 hafnium oxide Inorganic materials 0.000 description 2
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000000873 masking effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 2
- TYHJXGDMRRJCRY-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) tin(4+) Chemical compound [O-2].[Zn+2].[Sn+4].[In+3] TYHJXGDMRRJCRY-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- CSBHIHQQSASAFO-UHFFFAOYSA-N [Cd].[Sn] Chemical compound [Cd].[Sn] CSBHIHQQSASAFO-UHFFFAOYSA-N 0.000 description 1
- PGTXKIZLOWULDJ-UHFFFAOYSA-N [Mg].[Zn] Chemical compound [Mg].[Zn] PGTXKIZLOWULDJ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003667 anti-reflective effect Effects 0.000 description 1
- BEQNOZDXPONEMR-UHFFFAOYSA-N cadmium;oxotin Chemical compound [Cd].[Sn]=O BEQNOZDXPONEMR-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- FWLGASJILZBATH-UHFFFAOYSA-N gallium magnesium Chemical compound [Mg].[Ga] FWLGASJILZBATH-UHFFFAOYSA-N 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- LFKMKZZIPDISEK-UHFFFAOYSA-L magnesium;4-carboxy-2,6-dihydroxyphenolate Chemical compound [Mg+2].OC1=CC(C([O-])=O)=CC(O)=C1O.OC1=CC(C([O-])=O)=CC(O)=C1O LFKMKZZIPDISEK-UHFFFAOYSA-L 0.000 description 1
- PNHVEGMHOXTHMW-UHFFFAOYSA-N magnesium;zinc;oxygen(2-) Chemical compound [O-2].[O-2].[Mg+2].[Zn+2] PNHVEGMHOXTHMW-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- AHADSRNLHOHMQK-UHFFFAOYSA-N methylidenecopper Chemical compound [Cu].[C] AHADSRNLHOHMQK-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000006058 strengthened glass Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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
-
- 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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Push-Button Switches (AREA)
Abstract
This case is related to a kind of touch panel, define a visible area and one close to visible area a non-visible area, touch panel include a cover board, a light source, a touch-control sensing structure, a shielding layer and a diffusion layer.Light source is located in non-visible area, and is covered by cover board.Touch-control sensing structure is located at least in visible area, and is covered by cover board.Shielding layer is located in non-visible area, and is covered by cover board, and shielding layer has an opening, and the opening of shielding layer is located at one of light source and goes out on light path.Diffusion layer is coated on light source, cover board or shielding layer, and is located on the light path out of light source.It is directly coated on light source, shielding layer or cover board using by diffusion layer, and the step of exempting fitting or pasting the diffusion sheet with diffusion function.
Description
Technical field
The present invention relates to a kind of touch panels and preparation method thereof.
Background technique
In traditional touch technology, touch panel is set to liquid crystal display (liquid crystal display；
LCD), cathode-ray tube (cathode ray tube；CRT), Field Emission Display (filed emission display；
FED), plasma (plasma display panel；PDP) or electroluminescence shows (electroluminescent
) etc. display on the display surface of image display units, allow user can be by touching touch panel and viewing graphic pattern display component comes
Input message.
Touch panel is multilayered structure, and for example, touch panel has cover board as first layer and is located under cover board
One or more layers touch-control sensing structure of side, the two are bonded through adhesion layer.
Summary of the invention
Based on this, the present invention provides a kind of touch panel, uses diffusion layer being directly coated at light source, shielding layer or lid
On plate, and the step of exempting fitting or pasting the diffusion sheet with diffusion function.
One embodiment of the present invention provides a kind of touch panel, defines a visible area and one close to the one non-of visible area
Visible area, touch panel include a cover board, a light source, a touch-control sensing structure, a shielding layer and a diffusion layer.Light source is located at
In non-visible area, and covered by cover board.One touch-control sensing structure is located at least in visible area, and is covered by cover board.Shielding layer position
It in non-visible area, and is covered by cover board, shielding layer has an opening, and the opening of shielding layer is located at one of light source light path out
On.Diffusion layer is coated on light source, cover board or shielding layer, and is located on the light path out of light source.
In one or more embodiments of the invention, touch panel further includes an anti-reflecting layer, anti-reflecting layer covering
Cover board.
In one or more embodiments of the invention, diffusion layer is coated on the top surface in face of cover board of light source.
In one or more embodiments of the invention, diffusion layer is coated on the top surface back to light source of the cover board.
In one or more embodiments of the invention, diffusion layer is coated on the bottom surface in face of light source of shielding layer
On.
Another embodiment of the present invention provides a kind of method for making touch panel, a kind of production method of touch panel
Have a shielding layer of an opening in a cover board comprising being formed；A touch-control sensing structure is formed in cover board；One light source is set in screening
Below the opening for covering layer；And one diffusion layer of coating is on light source, cover board or shielding layer.
In one or more embodiments of the invention, diffusion layer be coated on cover board back to the one of touch-control sensing structure
On top surface.
In one or more embodiments of the invention, method further includes one anti-reflecting layer of setting on the diffusion layer
Side.
In one or more embodiments of the invention, diffusion layer is coated on the top surface in face of cover board of light source.
In one or more embodiments of the invention, diffusion layer is coated on the bottom surface in face of light source of shielding layer
On.
Detailed description of the invention
Fig. 1 is the top view according to the touch panel of one embodiment of the present invention.
Fig. 2 is the explosive view according to the touch panel of one embodiment of the present invention.
Fig. 3 is the sectional view according to the touch panel of another embodiment of the present invention.Fig. 3 is the touch panel edge of Fig. 1
The section explosive view of the A-A ' line of Fig. 1.
Fig. 4 is the section explosive view according to the touch panel of another embodiment of the present invention.
Fig. 5 is the section explosive view according to the touch panel of another embodiment of the present invention.
Fig. 6 is the section explosive view according to the touch panel of another embodiment of the present invention.
Fig. 7 is the section explosive view according to the touch panel of another embodiment of the present invention.
Fig. 8 is the section explosive view according to the touch panel of another embodiment of the present invention.
Description of symbols:
10: touch panel
12: visible area
14: non-visible area
100: light source
102,102a, 102b, 102c, 102d, 102e: diffusion layer
104: touch-control sensing structure
106: shielding layer
108: cover board
110: coating
202: first axis electrode
204: the second axial electrodes
302: conductive unit
304: bridging structure
306: insulating layer
308: pin configuration
O: opening
P: key legend
Specific embodiment
Multiple embodiments of the invention will be disclosed with attached drawing below, as clearly stated, the details in many practices
It 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.Also
It is to say, in some embodiments of the present invention, the details in these practices is non-essential.In addition, for the sake of simplifying attached drawing, one
A little known usual structures will be shown with component with what is simply illustrated in the accompanying drawings.
Fig. 1 is painted the top view of the touch panel of part embodiment according to the present invention.Fig. 2 be painted according to the present invention it
The explosive view of the touch panel of part embodiment.The touch panel that Fig. 3 is painted Fig. 1 explodes along the section of the A-A ' line of Fig. 1
Figure.Wherein touch panel 10 can be for example shows applied to the tool screen such as computer, mobile phone, camera, stereo set, vehicular equipment
The electronic device of function.As shown in Figure 1 to Figure 3, define visible area 12 and be in close proximity to the non-of visible area 12 can for touch panel 10
Vision area 14, and include light source 100, diffusion layer 102, touch-control sensing structure 104, shielding layer 106 and cover board 108, it is set on cover board 108
It is equipped with coating 110, to add antistatic, anti-dazzle (AG；) and/or antireflection (AR anti-glare；Anti-reflective)
Function forms the cover board 108 with defencive function.That is, coating 110 can be anti-reflecting layer, and cover cover board 108.Tool
For body, the screen viewing area of above-mentioned electronic device corresponds to visible area 12.Wherein, cover board 108 can be a strengthened glass or one
It is plasticized film, but invention is not limited thereto.The top surface of cover board 108 is for user's touching, the settable following institute in the bottom surface of cover board 108
State the component of other composition touch panels.
As shown in Figures 1 and 2, touch-control sensing structure 104 is located at least in visible area 12, and is covered by cover board 108.Touch-control
Sensing structure 104 includes plural item (being X-axis in present embodiment) first axis electrode arranged in parallel along a first direction
202, and the second axial electrode 204 that plural item is arranged in parallel along second direction (present embodiment is Y-axis).Wherein,
Two axial electrodes 204 are with 202 mutually insulated of first axis electrode and the second axial electrode 204 includes plural conductive unit 302
And plural item is electrically connected the bridging structure 304 of two adjacent conductive units 302.First axis electrode 202 and bridging structure 304
Between have a presence of insulating layer 306, insulating layer 306 can make between first axis electrode 202 and the second axial electrode 204 each other electrically absolutely
Edge.Touch-control sensing structure 104 further includes the pin configuration 308 that plural item is located at non-visible area 14, each 308 one end of pin configuration point
It is not electrically connected with first axis electrode 202 and the second axial electrode 204, the other end (is not painted) phase with external processor
Even, the signal being used between transmitting processor and first electrode structure 202 and second electrode structure 204.In part embodiment party
In formula, pin configuration 308 and bridging structure 304 use metal material, but invention is not limited thereto.In part embodiment
In, touch-control sensing structure 104 is single layer touch electrode structure, and first axis electrode 202 and conductive unit 302 are located on the same floor grade
Plane, this design can be such that the thickness of touch-control sensing structure 104 reduces.In other embodiments, touch-control sensing structure 104 is
The electrode of bilayer or multilayer touch electrode structure, i.e., two axial directions is separated into different planes by an entire insulating layer.
Referring to Fig. 3, shielding layer 106 is located in non-visible area 14, and is covered by cover board 108.Shielding layer 106 is non-visual
Area 14 can be between cover board 108 and touch-control sensing structure 104, in part embodiment, and shielding layer 106 is in non-visible area 14
The lower surface of cover board 108 can be located at, it acts as maskings to be located at other circuit units in non-visible area 14, to guarantee product
Appearance, wherein the material of shielding layer 106 is light-proof material, such as colored ink.In part embodiment, shielding layer 106
For black matrix" (BM；blackmatrix).There is shielding layer 106 opening O, opening O to be located on the light path out of light source 100, open
Mouth O is the pierced pattern P for leading to overetched mode and being formed on shielding layer 106, as shown in Figure 1.This pierced pattern P can for positioned at
The brand of touch function key legend, product in non-visible area indicates or other decorative patterns.
In part embodiment, touch-control sensing structure 104 non-visible area 14 can be located at shielding layer 106 lower surface and
Corresponding to opening O with some, touch-control sensing structure 104 then may be disposed at below cover board 108 in non-visible area 14, such as can
It is set up directly on the lower surface of cover board 108.In part embodiment, visual between touch-control sensing structure 104 and cover board 108
Also other settable accessory part floor in 12 range of area, but invention is not limited thereto.In part embodiment, touch-control sensing
Structure 104 can be extended to the region of the pattern P positioned at non-visible area 14 by visible area 12, so that touch panel 10 is positioned at non-
Figure key in visible area 14 has touch function, but invention is not limited thereto.In part embodiment, touch-control sensing
Structure 104 include the first detecting part and one independently of the first detecting part the second detecting part, wherein the first detecting part be located at it is visual
Area 12, the second detecting part are located at non-visible area 14 and correspond to pattern P, make have touch-control sensing function at pattern P.Touch-control sensing
Structure 104 is set in pattern P region, since the electrode of touch-control sensing structure 104 is mainly by electrically conducting transparent material institute structure
At, therefore the light of lower section light source will not be covered.
In part embodiment, touch-control sensing structure 104 can be made of transparent conductive material.For example, tin indium oxide
(indium tin oxide；ITO), indium zinc oxide (indium zinc oxide；IZO), cadmium tin (cadmium tin
oxide；CTO), aluminum zinc oxide (aluminum zinc oxide；AZO), indium oxide zinc-tin (indium tin zinc
oxide；ITZO), tin oxide (tin oxide), zinc oxide (zinc oxide), cadmium oxide (cadmium oxide), hafnium oxide
(hafnium oxide；HfO), indium gallium zinc (indium gallium zinc oxide；InGaZnO), indium gallium zinc
Magnesium (indium gallium zinc magnesium oxide；InGaZnMgO), indium gallium magnesium (indium gallium
magnesium oxide；InGaMgO), indium gallium aluminium (indium gallium aluminum oxide；InGaAlO), how
Rice carbon pipe (Carbon Nano Tube；CNT), silver-colored carbon nanotube or copper carbon nanotube etc. or other electrically conducting transparent materials, but this
Invention is not limited.
Light source 100 is located in non-visible area 14, and is covered by cover board 108.In part embodiment, light source 100 has
Light-emitting surface S1 towards shielding layer 106 and cover board 108, and it is located at the lower section of the opening O of shielding layer.In part embodiment,
Light source 100 is light emitting diode or other suitable luminescence components.
In present embodiment, the part light that the light source 100 under touch-control sensing structure 104 issues can shielded layer 106
Stop, part light can so highlight the pattern of shielding layer 106 directly by opening O.Diffusion layer 102 is located at light source 100
Go out light path on.For example, as shown in figure 3, diffusion layer 102 is coated on the light-emitting surface S1 in face of cover board 108 of light source 100
On, and between light source 100 and touch-control sensing structure 104, light sequentially pass through diffusion layer 102, touch-control sensing structure 104,
The opening O and cover board 108 of shielding layer 106, diffusion layer 102 can spread the light of the injection of light source 100.In part embodiment
In, diffusion layer 102 includes the ink or coating of diffusion particle, has light diffusion effect, and in a manner of printing, spraying or sputter etc.
It is formed on the light-emitting surface S1 of light source 100, but invention is not limited thereto.Since diffusion layer 102 is directly coated at light source 100
On, therefore touch panel 10 supports diffusion layer 102 without additional support plate, that is to say, that touch panel 10 has from fitting
The step of support plate of diffusion function.In part embodiment, as shown in figure 3, diffusion layer 102 is coated on light source 100 by entire surface
Light-emitting surface S1 on.That is, what the light-emitting surface S1 of light source 100 was covered by diffusion layer 102 completely.But the present invention not this
To be limited.For example, in other embodiments, as shown in figure 4, diffusion layer 102a is only partially coated on light source 100
On light-emitting surface S1.That is, some of the light-emitting surface S1 of light source 100 is covered by diffusion layer 102a, and another part is not
It is covered by diffusion layer 102a.
Fig. 5 is painted the section explosive view of the touch panel of another embodiment according to the present invention.As shown in figure 5, this implementation
Main difference between mode and embodiment shown in Fig. 3 is: diffusion layer 102b shown in present embodiment is coated on screening
Layer 106 is covered on the bottom surface S2 of light source 100, that is to say, that diffusion layer 102b is located at touch-control sensing structure 104 and shielding layer
Between 106, light sequentially pass through touch-control sensing structure 104, diffusion layer 102b, shielding layer 106 opening O and cover board 108, expand
Dissipating layer 102b can spread the light that light source 100 projects, and the light after making diffusion passes through the opening O of shielding layer 106.Implement in part
In mode, diffusion layer 102b includes the ink or coating of diffusion particle, and masking is formed in a manner of printing, spraying or sputter etc.
Layer 106 is on the bottom surface S2 of light source 100, but invention is not limited thereto.Since diffusion layer 102b is directly coated at shielding layer
On 106, therefore touch panel 10 supports diffusion layer 102b without additional support plate, that is to say, that touch panel 10 is from fitting
There is the step of support plate of diffusion function.In part embodiment, as shown in figure 4, diffusion layer 102b is coated on screening by entire surface
Layer 106 is covered on the bottom surface S2 of light source.But the present invention is not limited thereto.For example, in other embodiments, such as scheme
Shown in 6, diffusion layer 102c is partially coated on shielding layer 106 on the bottom surface S2 of light source.
Fig. 7 is painted the section explosive view of the touch panel of another embodiment according to the present invention.As shown in fig. 7, this implementation
Main difference between mode and aforementioned embodiments is: diffusion layer 102d shown in present embodiment is coated on cover board 108
On, specifically, diffusion layer 102d is coated on the top surface S3 of 108 backlight 100 of cover board.In other words, diffusion layer 102d
Cover board 108 is coated on back on the top surface S3 of touch-control sensing structure 104, that is to say, that diffusion layer 102d is coated on the back of cover board 108
To on the top surface S3 of light source 100.As shown in fig. 7, diffusion layer 102d is set between cover board 108 and coating 110.Light is sequentially
It can spread light by touch-control sensing structure 104, the opening O of shielding layer 106, cover board 108 and diffusion layer 102d, diffusion layer 102d
The light that source 100 is projected.In part embodiment, diffusion layer 102d includes the ink or coating of diffusion particle, and to print,
The modes such as spraying or sputter are formed in shielding layer 106 on the bottom surface S3 of light source 100, but invention is not limited thereto.Due to
Diffusion layer 102d is directly coated on cover board 108, therefore touch panel 10 supports diffusion layer 102d without additional support plate, also
It is to say, touch panel 10 has the step of support plate of diffusion function from fitting.In part embodiment, as shown in fig. 7, expanding
Dissipate layer 102d and be coated on cover board 108 by entire surface back on the top surface S3 of light source 100, coating 110 be located at the top diffusion layer 102d but
The present invention is not limited thereto.For example, in other embodiments, as shown in figure 8, diffusion layer 102e is partially coated on
Cover board 108 is back on the top surface S3 of light source 100.
The present invention provides a kind of touch panel, is directly coated at light source, shielding layer or cover board by using by diffusion layer
On, and the step of exempting fitting or pasting the diffusion sheet with diffusion function.
Although the present invention is disclosed above with numerous embodiments, however, it is not to limit the invention, any this field
Those of ordinary skill should can make various variation and modification, therefore of the invention without departing from the spirit and scope of the present invention
Protection scope, which is worked as, to be subjected to the definition of the claims.
Claims (10)
1. a kind of touch panel, which is characterized in that define a visible area and one close to the visible area a non-visible area, the touching
Control panel includes:
One cover board；
One light source is located in the non-visible area, and is covered by the cover board；
One touch-control sensing structure, is located at least in the visible area, and is covered by the cover board；
One shielding layer is located in the non-visible area, and is covered by the cover board, and wherein the shielding layer has an opening, the shielding layer
The opening be located at one of the light source go out light path on；And
One diffusion layer is coated on the light source, the cover board or the shielding layer, and is located at should going out on light path for the light source.
2. touch panel as described in claim 1, which is characterized in that include also an anti-reflecting layer, which covers the lid
Plate.
3. touch panel as described in claim 1, which is characterized in that the diffusion layer be coated on the light source in face of the cover board
On one top surface.
4. touch panel as described in claim 1, which is characterized in that the diffusion layer be coated on the cover board back to the light source
On one top surface.
5. touch panel as described in claim 1, which is characterized in that the diffusion layer be coated on the shielding layer in face of the light source
A bottom surface on.
6. a kind of production method of touch panel, characterized by comprising:
Being formed has a shielding layer of an opening in a cover board；
A touch-control sensing structure is formed in the cover board；
One light source is set below the opening of the shielding layer；And
A diffusion layer is coated on the light source, the cover board or the shielding layer.
7. production method as claimed in claim 6, which is characterized in that the diffusion layer be coated on the cover board back to the touch-control sense
On one top surface of geodesic structure.
8. production method as claimed in claim 7, which is characterized in that further include:
One anti-reflecting layer is set above the diffusion layer.
9. production method as claimed in claim 6, which is characterized in that the diffusion layer be coated on the light source in face of the cover board
On one top surface.
10. production method as claimed in claim 7, which is characterized in that the diffusion layer be coated on the shielding layer in face of the light
On one bottom surface in source.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810148330.3A CN110162199A (en) | 2018-02-13 | 2018-02-13 | Touch panel and preparation method thereof |
| TW108100104A TWI761652B (en) | 2018-02-13 | 2019-01-02 | Touch panel and fabrication method thereof |
Applications Claiming Priority (1)
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| CN201810148330.3A CN110162199A (en) | 2018-02-13 | 2018-02-13 | Touch panel and preparation method thereof |
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Also Published As
| Publication number | Publication date |
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| TW201935205A (en) | 2019-09-01 |
| TWI761652B (en) | 2022-04-21 |
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Application publication date: 20190823 |