CN109085727B - Light and thin display device and manufacturing method thereof - Google Patents
Light and thin display device and manufacturing method thereof Download PDFInfo
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- CN109085727B CN109085727B CN201811056670.XA CN201811056670A CN109085727B CN 109085727 B CN109085727 B CN 109085727B CN 201811056670 A CN201811056670 A CN 201811056670A CN 109085727 B CN109085727 B CN 109085727B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 81
- 230000003287 optical effect Effects 0.000 claims abstract description 35
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- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 14
- 239000003292 glue Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- GKWLILHTTGWKLQ-UHFFFAOYSA-N 2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical compound O1CCOC2=CSC=C21 GKWLILHTTGWKLQ-UHFFFAOYSA-N 0.000 claims description 3
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000002041 carbon nanotube Substances 0.000 claims description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000005530 etching Methods 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 239000004020 conductor Substances 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 1
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- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/166—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
- G02F1/167—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
-
- 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
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
- G09F9/372—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the positions of the elements being controlled by the application of an electric field
Abstract
The invention relates to a light and thin display device which comprises an electronic ink display screen, a touch control assembly and a cover plate, wherein the touch control assembly comprises an upper touch control circuit assembly and a lower touch control circuit layer arranged on the surface of the electronic ink display screen, the upper touch control circuit assembly comprises an upper touch control circuit layer and a first optical transparent adhesive layer arranged on one side of the upper touch control circuit layer, the upper touch control circuit layer is attached to one side, far away from the electronic ink display screen, of the lower touch control circuit layer through the first optical transparent adhesive layer, and the cover plate is further arranged on one side, far away from the lower touch control circuit layer, of the upper touch control circuit assembly. The invention also relates to a manufacturing method of the light and thin display device. The lower touch circuit layer is directly arranged on the electronic ink display screen, and the lower touch circuit layer, the first optical transparent adhesive layer and the upper touch circuit layer directly form a touch circuit, so that the thickness of the light and thin display device can be directly reduced.
Description
Technical Field
The present invention relates to the field of electronic display technology, and more particularly, to a light and thin display device and a method for manufacturing the same.
Background
Compared with the traditional computer and mobile phone display screens, the ink screen has the advantages that the electronic ink looks more like printed characters, and eyes are easier to read; in addition, the ink screen does not consume electricity when reading, only needs to consume electricity when turning pages or refreshing, and compared with the traditional LCD screen, the ink screen is more power-saving, has higher cruising ability and has long service life. Due to the advantages, the ink screen is very suitable for being applied to mobile terminals such as mobile phones, tablets and the like.
However, the ink screen device with backlight on the market has a problem of better thickness, is inconvenient to carry, and does not conform to the current trend of thinner and thinner mobile terminals, so improvement is needed.
Disclosure of Invention
The present invention aims to improve a light and thin display device and a manufacturing method thereof, so that the thickness of the light and thin display device is reduced.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a frivolous display device, includes electronic ink display screen, touch-control subassembly and apron, touch-control subassembly is including last touch-control circuit subassembly and setting are in the lower touch-control circuit layer on electronic ink display screen surface, go up touch-control circuit subassembly including last touch-control circuit layer and setting up the first optical transparent glue film of last touch-control circuit layer one side, go up the touch-control circuit layer and pass through first optical transparent glue film is attached down on the touch-control circuit layer keeps away from one side of electronic ink display screen down, it still is provided with to go up the touch-control circuit subassembly and keep away from one side of lower touch-control circuit layer the apron.
In a preferred embodiment, the lower touch circuit layer is etched after a transparent conductive layer is coated or evaporated on the surface of the electronic ink display screen.
In a preferred embodiment, the transparent conductive layer is one or more combinations of Indium Tin Oxide (ITO), nano-silver wire, carbon nanotubes, graphene, or 3, 4-ethylenedioxythiophene Polymer (PEDOT).
In a preferred embodiment, the upper touch circuit layer is etched from an Indium Tin Oxide (ITO) layer on a surface of the first optically transparent adhesive layer.
In a preferred embodiment, the touch screen further comprises a front light assembly, the front light assembly comprises an LED light bar and a light guide plate, the light guide plate is located between the upper touch circuit assembly and the cover plate, and the LED light bar is arranged on the light incident side of the light guide plate.
In a preferred embodiment, the front light component is attached to the upper touch circuit component and the cover plate through a second optical transparent adhesive layer and a third optical transparent adhesive layer respectively.
In a preferred embodiment, a black adhesive tape is further attached to the peripheral edge of the side of the light guide plate facing the cover plate.
A method for manufacturing a light and thin display device includes the following steps,
s10, coating or evaporating a transparent conductive substance layer on an electronic ink display screen;
s20, manufacturing the transparent conductive substance layer into a lower touch circuit layer by adopting a yellow light process or a laser process;
s30, an Indium Tin Oxide (ITO) layer on the surface of the first optical transparent glue layer is manufactured into an upper touch control circuit layer by adopting a yellow light process or a laser process;
and S40, attaching one side of the upper touch control circuit layer, on which the first optical transparent adhesive layer is arranged, to the lower touch control circuit layer.
In a preferred embodiment, the first optically transparent adhesive layer and indium tin oxide layer (ITO) have a total thickness of 30-100 μm.
In a preferred embodiment, the upper touch circuit layer is attached to the lower touch circuit layer and then subjected to defoaming treatment.
The beneficial effects of the invention are as follows:
the lower touch circuit layer, the first optical transparent adhesive layer and the upper touch circuit layer are directly arranged on the electronic ink display screen, so that a touch circuit is directly formed.
Drawings
The invention is further described below with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a light and thin display device according to an embodiment of the invention;
FIG. 2 is a top view of one embodiment of a front light assembly of the present invention;
fig. 3 is a schematic structural diagram of an embodiment of an upper touch circuit assembly of the present invention.
Detailed Description
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, aspects, and effects of the present invention. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly or indirectly fixed or connected to the other feature. Further, the descriptions of the upper, lower, left, right, etc. used in the present invention are merely with respect to the mutual positional relationship of the constituent elements of the present invention in the drawings.
Furthermore, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any combination of one or more of the associated listed items.
Referring to fig. 1 to 3, fig. 1 is a schematic structural view of a light and thin display device according to an embodiment of the present invention, fig. 2 is a top view of an embodiment of a front light module 8 according to the present invention, and fig. 3 is a schematic structural view of an embodiment of an upper touch circuit module 3 according to the present invention. The light and thin display device of the present embodiment includes an electronic ink display screen 1, a lower touch circuit layer 2, an upper touch circuit assembly 3, a first flexible circuit board 4, a second optical transparent adhesive layer 5, a third optical transparent adhesive layer 6, a cover plate 7 and a front light assembly 8.
The touch control assembly comprises a lower touch control circuit layer 2 and an upper touch control circuit assembly 3, wherein the lower touch control circuit layer 2 is directly manufactured on the upper surface of the electronic ink display screen 1, the upper touch control circuit assembly 3 comprises a first optical transparent adhesive layer 31 and an upper touch control circuit layer 32, the upper touch control circuit layer 32 is arranged on the upper surface of the first optical transparent adhesive layer 31, the upper touch control circuit layer 32 is attached to the lower touch control circuit layer 2 through the first optical transparent adhesive layer 31, and the upper touch control circuit layer 32 is electrically connected with the first flexible circuit board 4.
The cover plate 7 is located one side of the upper touch control circuit layer 32 far away from the first optical transparent adhesive layer 31, a front light component 8 is further arranged between the cover plate 7 and the upper touch control circuit layer 32, the front light component 8 comprises a black adhesive tape 801, a second flexible circuit board 802, an LED light bar 803 and a light guide plate 804, and the display device can also read in dark environments such as night through the arrangement of the front light component 8.
In specific manufacturing, the lower touch circuit layer 2 may be first fabricated on the electronic ink display screen 1. Firstly, a transparent conductive material layer is coated or evaporated on the upper surface of the electronic ink display screen 1, wherein the transparent conductive material layer can be one or more of Indium Tin Oxide (ITO), nano silver wire, carbon nanotube, graphene or 3, 4-ethylenedioxythiophene Polymer (PEDOT), and then a lower touch circuit is manufactured through a yellow light process or a laser process, in this embodiment, the first transparent conductive layer is an Indium Tin Oxide (ITO) layer, the thickness of which is 2000 angstroms, and the lower touch circuit is manufactured through the laser process.
Next, a touch circuit layer 32 is fabricated on the first optical transparent adhesive layer 31, an indium tin oxide layer (ITO) is disposed on the upper surface of the first optical transparent adhesive layer 31, the overall thickness of the first optical transparent adhesive layer 31 and the indium tin oxide layer (ITO) is 30-100 μm, and in this embodiment, the overall thickness of the first optical transparent adhesive layer 31 and the indium tin oxide layer (ITO) is selected to be 45 μm. In the present embodiment, a yellow light process or a laser process is used to improve the manufacturing efficiency, and the upper touch circuit layer 32 is manufactured through the processes of attaching a dry film, exposing, developing, etching, film stripping, and the like. In the manufacturing of the upper touch circuit layer 32, a large first optical transparent adhesive layer 31 and an Indium Tin Oxide (ITO) composite film may be selected, and after the manufacturing is completed, a small composite film conforming to the target size is punched.
And bonding the side, provided with the first optical transparent glue layer 31, of the upper touch circuit layer 32 with the lower touch circuit layer 2, and performing defoaming treatment after bonding. And (3) performing electrical performance test on the electronic ink display screen 1 manufactured by the touch component, and hot-pressing and binding the touch component of the electronic ink display screen 1 which is qualified in test with the first flexible circuit board 4.
Fourth, the second flexible circuit board 802 with the LED light bars 803 is attached to the light incident side of the light guide plate 804, and in order to prevent light leakage from the peripheral edge of the light guide plate 804, black adhesive tapes 801 are attached to the peripheral edge of the upper surface of the light guide plate 804.
Fifth, the third optical transparent adhesive layer 6 is attached to the lower surface of the cover plate 7 in a plate turnover vacuum rolling manner, wherein the cover plate 7 is made of ceramic, glass, sapphire, PI, PSA, PMMA, PC, PET and other materials, and glass materials are selected in the embodiment. And attaching one side of the cover plate 7 provided with the third optical transparent adhesive layer 6 to the front light assembly 8, and performing defoaming treatment after attaching. And finally, attaching the assembly of the cover plate 7 and the front light component 8 to the electronic ink display screen 1 with the touch circuit through the second optical transparent adhesive layer 5 to finish the manufacturing of the light and thin display device.
While the preferred embodiment of the present invention has been described in detail, the present invention is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are included in the scope of the present invention as defined in the appended claims.
Claims (8)
1. The utility model provides a frivolous display device, its characterized in that, including electronic ink display screen, touch subassembly and apron, touch subassembly is including last touch circuit subassembly and setting are in the lower touch circuit layer on electronic ink display screen surface, go up touch circuit subassembly including last touch circuit layer and setting up the first optical transparent glue film of going up touch circuit layer one side, go up touch circuit layer and form through the etching of indium tin oxide layer (ITO) on the complex film including first optical transparent glue film and indium tin oxide layer (ITO), go up touch circuit layer through first optical transparent glue film is attached down on the touch circuit layer keeps away from one side of electronic ink display screen, go up touch circuit subassembly and keep away from one side of lower touch circuit layer still is provided with the apron, still including preceding optical subassembly, preceding optical subassembly is including LED lamp strip and light guide plate, the light guide plate is located between last touch circuit subassembly and the apron, the LED lamp strip sets up the light guide plate is in the light guide plate.
2. The light and thin display device of claim 1, wherein the lower touch circuit layer is etched after a transparent conductive layer is coated or evaporated on the surface of the electronic ink display screen.
3. The light and thin display device of claim 2, wherein the transparent conductive layer is one or more of Indium Tin Oxide (ITO), nano-silver wire, carbon nanotubes, graphene, or 3, 4-ethylenedioxythiophene Polymer (PEDOT).
4. The light and thin display device according to claim 1, wherein the front light assembly is attached to the upper touch circuit assembly and the cover plate through a second optical transparent adhesive layer and a third optical transparent adhesive layer, respectively.
5. The light and thin display device according to claim 1, wherein a black adhesive tape is further attached to a peripheral edge of a side of the light guide plate facing the cover plate.
6. A method of manufacturing a light and thin display device, comprising the steps of:
s10, coating or evaporating a transparent conductive substance layer on an electronic ink display screen;
s20, manufacturing the transparent conductive substance layer into a lower touch circuit layer by adopting a yellow light process or a laser process;
s30, etching an indium tin oxide layer (ITO) on the composite film comprising the first optical transparent glue layer and the indium tin oxide layer (ITO) by adopting a yellow light process or a laser process to prepare an upper touch control circuit layer;
s40, attaching one side of the upper touch control circuit layer, on which the first optical transparent adhesive layer is arranged, to the lower touch control circuit layer;
attaching one side of the cover plate, which is provided with a third optical transparent adhesive layer, to a front light assembly, wherein the front light assembly comprises attaching a second flexible circuit board with an LED lamp strip to the light inlet side of a light guide plate, and attaching black adhesive tapes to the peripheral edges of the upper surface of the light guide plate; and attaching the assembly of the cover plate and the front light component to an electronic ink display screen provided with a touch circuit.
7. The method of manufacturing a light and thin display device according to claim 6, wherein the total thickness of the first optically transparent adhesive layer and the indium tin oxide layer (ITO) is 30-100 μm.
8. The method of manufacturing a light and thin display device according to claim 6, wherein the upper touch circuit layer is attached to the lower touch circuit layer and then defoamed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056670.XA CN109085727B (en) | 2018-09-11 | 2018-09-11 | Light and thin display device and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056670.XA CN109085727B (en) | 2018-09-11 | 2018-09-11 | Light and thin display device and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN109085727A CN109085727A (en) | 2018-12-25 |
| CN109085727B true CN109085727B (en) | 2024-03-19 |
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| CN201811056670.XA Active CN109085727B (en) | 2018-09-11 | 2018-09-11 | Light and thin display device and manufacturing method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112255829A (en) * | 2020-10-22 | 2021-01-22 | Tcl通讯（宁波）有限公司 | Display panel and display device |
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| CN109085727A (en) | 2018-12-25 |
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