CN106293256B - In-cell type touch panel and its manufacturing method - Google Patents
In-cell type touch panel and its manufacturing method Download PDFInfo
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- CN106293256B CN106293256B CN201610883397.2A CN201610883397A CN106293256B CN 106293256 B CN106293256 B CN 106293256B CN 201610883397 A CN201610883397 A CN 201610883397A CN 106293256 B CN106293256 B CN 106293256B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- 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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- 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
Abstract
The invention discloses a kind of In-cell type touch panel and its manufacturing methods, belong to field of display technology.Solve the problems, such as that In-cell type touch panel storage capacitance is small.In-cell type touch panel of the present invention, routing layer including being used for transmission signal in colored filter side, insulating layer on the routing layer, insulating layer includes multiple via holes, black-matrix layer on the insulating layer, black-matrix layer is divided into multiple independent black matrix" touch control units, more cablings are corresponding with multiple independent black matrix" touch control units, multiple via holes are corresponding with multiple independent black matrix" touch control units, are connected by corresponding via hole black matrix" touch control unit with corresponding cabling.Finally increase the storage capacitance of pixel.The manufacturing method of In-cell type touch panel of the present invention finally increases the storage capacitance of pixel by forming routing layer and black-matrix layer in colorized optical filtering on piece.
Description
Technical field
The present invention relates to field of display technology, and in particular to In-cell type touch panel and its manufacturing method.
Background technique
Touch technology developed rapidly in recent years, existing touch panel, and the difference of position is arranged according to touch control unit, can divide
Be covered in liquid crystal cell upper type (On Cell) for touch control unit, touch control unit is embedded in mode in liquid crystal cell (In Cell) and
Display panel mode (Out Cell) is hung on outside touch control unit.
As depicted in figs. 1 and 2, it is in thin film transistor (TFT) glass that traditional self-capacitance In cell type is touch panel structure provided
The array side (Array) of plate (TPT glass) deposits cabling of the one layer of metal layer as transmission touching signals.It will effectively show
(AA) bottom tin indium oxide (B-ITO) is divided into several individual zonules in area.Each zonule is as a touch-control list
First (Sensor pad), touch control unit it is separated.The metal layer of bottom is conducting to the touch-control on upper layer by via hole (VIA) again
On unit (Sensor pad).Each metal routing controls a touch control unit.When panel is in the display stage, metal is walked
Line transmits common voltage (Com) current potential to bottom tin indium oxide, and when panel is in the touch-control stage, metal layer transmits touching signals
To each independent touch control unit.But in this structure, a layer insulating (PV) being increased the array side, to increase more
The distance between pixel electrode and common voltage electrode.There is passivation layer (TP- between metal routing and bottom tin indium oxide
IL), the distance between bottom tin indium oxide (B-ITO) and top layer tin indium oxide (T-ITO) are increased.This arrangement reduces pictures
The storage capacitors of element, especially when PPI (number of pixels that per inch is possessed) is higher, storage capacitance is just smaller, reduces face
The display capabilities of plate.
Summary of the invention
It is small for the storage capacitance of the middle In cell type touch panel of the above-mentioned prior art, reduce the display energy of panel
The problem of power, the invention proposes a kind of In-cell type touch panel and its manufacturing methods.
A kind of In-cell type touch panel of the invention, comprising:
It is used for transmission the routing layer of signal in the side of colored filter, routing layer includes more cablings.
Insulating layer on the routing layer, the insulating layer include multiple via holes.
Black-matrix layer on the insulating layer, the black-matrix layer are divided into multiple independent black matrix" touch-controls
Unit, the more cablings are corresponding with the multiple independent black matrix" touch control unit, multiple via holes with it is multiple independent black
Colour moment battle array touch control unit is corresponding.
It is connected by corresponding via hole black matrix" touch control unit with corresponding cabling.
Preferably, it further includes the cloche for encapsulation, and the cloche is fixed on the black by optical cement
In matrix layer.
Preferably, the gap between multiple independent black matrix" touch control units is equipped with light-shielding structure.
Preferably, the gap for being parallel to scanning line direction is blocked using grid line (Gate line), using source/drain line
Block the gap for being parallel to the direction data line (Data line).
Preferably, the black-matrix layer of colored filter effective display area is divided into multiple independent using pixel as unit
Black matrix" touch control unit.
By blocking to the gap between black matrix" touch control unit, effective display area light leakage can be effectively avoided.
Black-matrix layer uses metal procedure.
A kind of manufacturing method of In-cell type touch panel of the invention, comprising the following steps:
The routing layer for being used for transmission signal is formed in the side of colored filter, routing layer includes more cablings.
Insulating layer is formed on the routing layer, the insulating layer includes multiple via holes.
It is formed on the insulating layer black-matrix layer, so that black-matrix layer is divided into multiple independent black matrix" touchings
Control unit, the more cablings are corresponding with the multiple independent black matrix" touch control unit, multiple via holes with it is multiple independent
Black matrix" touch control unit is corresponding, is connected by corresponding via hole black matrix" touch control unit with corresponding cabling.
Preferably, it further includes that optical adhesive layer is formed in black-matrix layer, is formed in optical adhesive layer for encapsulating
Cloche.
Preferably, the gap between multiple independent black matrix" touch control units forms light-shielding structure.
Preferably, the gap for being parallel to scanning line direction is blocked using grid line, is blocked and is parallel to using source/drain line
The gap in data line direction.
Preferably, the black-matrix layer of colored filter effective display area is divided into multiple independent using pixel as unit
Black matrix" touch control unit.
In-cell type touch panel of the invention, routing layer, insulating layer and black-matrix layer are in colorized optical filtering on piece.This
Kind structure does not have passivation layer (TP-IL) in side array (Array) of thin film transistor base plate (TPT glass).The present invention is effective
Reduce the distance between pixel electrode and common voltage electrode, increase the storage capacitance of pixel, while reducing array
The processing procedure of side is conducive to the yield for promoting array.
The manufacturing method of In-cell type touch panel of the invention, colorized optical filtering on piece deposit routing layer, insulating layer and
Black-matrix layer.The present invention does not have passivation layer (TP- in side array (Array) of thin film transistor (TFT) glass plate (TPT glass)
IL), the distance between pixel electrode and common voltage electrode are effectively reduced, the storage capacitance of pixel is increased, promotes face
The display effect of plate reduces the processing procedure of array side, is conducive to the yield for promoting array.
Above-mentioned technical characteristic may be combined in various suitable ways or be substituted by equivalent technical characteristic, as long as can reach
To the purpose of the present invention.
For further understanding of the features and technical contents of the present invention, it please refers to below in connection with of the invention detailed
Illustrate and attached drawing, however, the drawings only provide reference and explanation, is not intended to limit the present invention.
Detailed description of the invention
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings, in which:
Fig. 1 shows the structural schematic diagram of traditional self-capacitance In cell type touch panel of the prior art；
A1 is bottom tin indium oxide, and A2 is via hole, and A3 is effective display area, and A4 is colored filter (CF), and A5 is film
Transistor (TFT), A6 are integrated circuit (IC), and A7 is flexible circuit board (FPC)；
Fig. 2 shows the schematic diagram of the section structure of traditional self-capacitance In cell type touch base plate of the prior art；
4 be black-matrix layer (BM), and 7 support column (PS) between colored filter and thin film transistor (TFT) glass plate, A8 is
Top layer tin indium oxide, A9 are storage capacitance, and A10 is No.1 insulating layer (PV), and A11 is the first metal layer, and A12 is passivation layer (TP-
IL), A13 is flatness layer (PLN), and A14 is source electrode, and A15 is drain electrode, and A16 is second insulating layer (ILD), and A17 is second metal layer
(GE), A18 is third insulating layer (GI), and A19 is low temperature polycrystalline silicon (LTPS), and A20 is buffer layer (Buffer), and A21 is shading
Metal layer, A22 are glass substrate；
Fig. 3 shows structural schematic diagram of the black-matrix layer in colorized optical filtering on piece of embodiment one；
Fig. 4 shows the structural schematic diagram of the black matrix" touch control unit of embodiment one；
Fig. 5 shows a kind of structural schematic diagram of In-cell type touch panel of embodiment one；
Fig. 6 shows a kind of the schematic diagram of the section structure of In-cell type touch panel of embodiment one；
8 be thin film transistor (TFT) glass；
Fig. 7 shows the horizontal Timing driver signal graph of embodiment one.
In the accompanying drawings, identical component uses identical appended drawing reference.Attached drawing is not according to actual ratio.
Specific embodiment
Below in conjunction with the attached drawing in embodiment of the present invention, the technical solution in embodiment of the present invention is purged
It is fully described by.Obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.
Based on the embodiment in the present invention, those of ordinary skill in the art are obtained without making creative work
Every other embodiment, all should belong to the scope of protection of the invention.
The technical problem to be solved by the present invention is in order to solve big visual angle color present in existing liquid crystal display panel
Inclined phenomenon.To solve the above problems, the following specific embodiments that provide of the invention are described in detail.
Embodiment one
The present embodiment is explained in detail below with reference to Fig. 3 to Fig. 7.
One of present embodiment In-cell type touch panel, comprising:
It is used for transmission the routing layer 2 of signal in the side of colored filter 1, routing layer 2 includes more cablings；
Insulating layer 3 on routing layer 2, insulating layer 3 include multiple via hole 3a；
Black-matrix layer 4 on the insulating layer 3, black-matrix layer 4 are divided into multiple independent black matrix" touch control units.
As shown in figure 3, the effective display area and periphery of black-matrix layer 4 distribution and colored filter, by the black on periphery
Matrix layer and the black-matrix layer of effective display area are divided, and by the black-matrix layer 4 of 1 effective display area of colored filter with picture
Element is that unit is divided into multiple independent black matrix" touch control units.
More cablings are corresponding with multiple independent black matrix" touch control units, multiple via hole 3a and multiple independent black squares
Battle array touch control unit is corresponding.
It is connected by corresponding via hole 3a black matrix" touch control unit with corresponding cabling.
It is specific based on above-mentioned specific embodiment:
It further includes the cloche 5 for encapsulation, and cloche 5 is fixed in black-matrix layer 4 by optical cement 6.
As shown in figure 4, the gap between multiple independent black matrix" touch control units is equipped with light-shielding structure.
The gap for being parallel to scanning line direction is blocked using grid line, is blocked using source/drain line and is parallel to data line direction
Gap.In Fig. 4,9 be source/drain line, and 10 be grid line.
The black-matrix layer 4 of 1 effective display area of colored filter is divided into multiple independent black squares by unit of pixel
Battle array touch control unit.
Black-matrix layer in Fig. 5 in dotted line frame is a black matrix" touch control unit, between black matrix" touch control unit
Independently of each other, a cabling is connected with a black matrix" touch control unit by via hole, 1 effective display area of colored filter it is black
The arrangement of colour moment battle array touch cell array formula.
In Fig. 6,6 be color blocking layer, and color blocking layer is in the other side of colored filter.
Fig. 7 is horizontal Timing driver signal graph.
It closes in the last item Gate of control panel to when the 1st article of Gate write-in of next cycle, there is a sudden strains of a muscle
Bright time (Blinking Time).In this section of timing, by the transmission electrode signal of black-matrix layer input high potential.I.e. by one
A horizontal cycle is divided into touch-control time (Touch Time) and pixel write time (Pixel Write Time).It is written in pixel
Period, the normal input signal of all pixels, the cabling of black-matrix layer transmits GND signal at this time, as shielded signal.It is touching
It controls in the period, the touch control electrode signal of the cabling write-in high frequency of black-matrix layer.
Present embodiment deposits color blocking layer 6 in the other side of colored filter, deposits cabling in the side of colored filter
Layer 2, as the cabling of transmission touching signals, a redeposited layer insulating (TP-IL) deposits the black of one layer of metal on the insulating layer
Color matrix layer.It is connected by via hole black-matrix layer with cabling.It is packaged using cloche.
Touch control unit is set on thin film transistor (TFT) glass plate in the prior art, in thin film transistor (TFT) glass plate array side
Increase a layer insulating more.To increase the distance between pixel electrode and common voltage electrode, metal routing and bottom
There is passivation layer between tin indium oxide, increase the distance between bottom tin indium oxide and top layer tin indium oxide, this structure subtracts
The small storage capacitors of pixel.And in present embodiment, touch control unit is set away from the side of color blocking layer in colored filter, solution
The small problem of storage capacitors of having determined.Present embodiment effectively reduces the thickness between pixel electrode and Com electrode, increases
The storage capacitance of pixel improves the display capabilities of panel.
Embodiment two
The manufacturing method of one of present embodiment In-cell type touch panel, comprising the following steps:
The routing layer 2 for being used for transmission signal is formed in the side of colored filter 1, routing layer 2 includes more cablings；
Insulating layer 3 is formed on routing layer 2, insulating layer 3 includes multiple via hole 3a.
Black-matrix layer 4 is formed on the insulating layer 3, so that black-matrix layer 4 is divided into multiple independent black matrix" touchings
Unit is controlled, more cablings are corresponding with multiple independent black matrix" touch control units, multiple via hole 3a and multiple independent black squares
Battle array touch control unit is corresponding, is connected by corresponding via hole 3a black matrix" touch control unit with corresponding cabling.
It is specific based on above-mentioned specific embodiment:
It further includes forming optical adhesive layer in black-matrix layer 4, is formed in optical adhesive layer for encapsulating such as black
The cloche 5 of matrix layer.
Gap between multiple independent black matrix" touch control units forms light-shielding structure.
The gap for being parallel to scanning line direction is blocked using grid line, is blocked using source/drain line and is parallel to data line direction
Gap.
The black-matrix layer 4 of 1 effective display area of colored filter is divided into multiple independent black squares by unit of pixel
Battle array touch control unit.
Touch control unit is formed on thin film transistor (TFT) glass plate in the prior art, in thin film transistor (TFT) glass plate array side
A layer insulating is increased, to increase the distance between pixel electrode and common voltage electrode, metal routing and bottom more
There is passivation layer between tin indium oxide, increase the distance between bottom tin indium oxide and top layer tin indium oxide, reduce pixel
Storage capacitors.And in present embodiment, touch control unit is formed in the side of colored filter, solves that storage capacitors are small to ask
Topic.Present embodiment, without TP-IL insulating layer, effectively reduces pixel electrode and Com electrode on thin film transistor (TFT) glass plate
Between thickness, increase the storage capacitance of pixel, improve the display capabilities of panel.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
Although describing the present invention herein with reference to specific embodiment, it should be understood that, these realities
Apply the example that example is only principles and applications.It should therefore be understood that can be carried out to exemplary embodiment
Many modifications, and can be designed that other arrangements, without departing from spirit of the invention as defined in the appended claims
And range.It should be understood that different appurtenances can be combined by being different from mode described in original claim
Benefit requires and feature described herein.It will also be appreciated that the feature in conjunction with described in separate embodiments can be used
In other described embodiments.
Claims (10)
1. a kind of In-cell type touch panel characterized by comprising
It is used for transmission the routing layer (2) of signal in the side of colored filter (1), the routing layer (2) includes more cablings；
Insulating layer (3) on the routing layer (2), the insulating layer (3) include multiple via holes (3a)；
Black-matrix layer (4) on the insulating layer (3), the black-matrix layer (4) are divided into multiple independent black squares
Battle array touch control unit, the more cablings are corresponding with the multiple independent black matrix" touch control unit, the multiple via hole (3a)
It is corresponding with the multiple independent black matrix" touch control unit；
It is connected by corresponding via hole (3a) black matrix" touch control unit with corresponding cabling.
2. In-cell type touch panel as described in claim 1, which is characterized in that further include the cloche for encapsulation
(5), the cloche (5) is fixed on the black-matrix layer (4) by optical cement (6).
3. In-cell type touch panel as claimed in claim 1 or 2, which is characterized in that the multiple independent black matrix"
Gap between touch control unit is equipped with light-shielding structure.
4. In-cell type touch panel as claimed in claim 3, which is characterized in that blocked using grid line and be parallel to scanning
The gap for being parallel to data line direction is blocked in the gap in line direction using source/drain line.
5. In-cell type touch panel as claimed in claim 1 or 2, which is characterized in that the colored filter (1) is effective
The black-matrix layer (4) of viewing area is divided into multiple independent black matrix" touch control units by unit of pixel.
6. a kind of manufacturing method of In-cell type touch panel, which comprises the following steps:
The routing layer (2) for being used for transmission signal is formed in the side of colored filter (1), the routing layer (2) includes more and walks
Line；
It is formed on the routing layer (2) insulating layer (3), the insulating layer (3) includes multiple via holes (3a)；
Black-matrix layer (4) are formed on the insulating layer (3) so that the black-matrix layer (4) be divided into it is multiple independent
Black matrix" touch control unit, the more cablings are corresponding with the multiple independent black matrix" touch control unit, the multiple mistake
Hole (3a) is corresponding with the multiple independent black matrix" touch control unit, passes through corresponding via hole (3a) black matrix" touch control unit
It is connected with corresponding cabling.
7. the manufacturing method of In-cell type touch panel as claimed in claim 6, which is characterized in that further include described black
Color matrix layer forms optical adhesive layer on (4), and the cloche (5) for encapsulation is formed in the optical adhesive layer.
8. the manufacturing method of In-cell type touch panel as claimed in claims 6 or 7, which is characterized in that the multiple only
Gap between vertical black matrix" touch control unit forms light-shielding structure.
9. the manufacturing method of In-cell type touch panel as claimed in claim 8, which is characterized in that blocked using grid line
It is parallel to the gap of scanning line direction, the gap for being parallel to data line direction is blocked using source/drain line.
10. the manufacturing method of In-cell type touch panel as claimed in claims 6 or 7, which is characterized in that the colored filter
The black-matrix layer (4) of mating plate (1) effective display area is divided into multiple independent black matrix" touch-controls by unit of pixel
Unit.
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| US10459566B2 (en) * | 2017-05-26 | 2019-10-29 | Novatek Microelectronics Corp. | Display device and manufacturing method thereof |
| CN110989859B (en) * | 2019-11-19 | 2023-08-22 | 武汉华星光电半导体显示技术有限公司 | Touch panel and manufacturing method thereof |
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|---|---|---|---|---|
| CN101819344A (en) * | 2010-05-20 | 2010-09-01 | 友达光电股份有限公司 | Colored light-filtering touch base plate |
| TW201331669A (en) * | 2012-01-20 | 2013-08-01 | Innocom Tech Shenzhen Co Ltd | In-cell touch panel display |
| TW201541306A (en) * | 2014-04-29 | 2015-11-01 | Acer Inc | Method of producing in-cell touch panel and in-cell touch panel thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293750B (en) * | 2012-12-14 | 2016-05-11 | 上海天马微电子有限公司 | A kind of embedded touch-screen color membrane substrates and manufacture method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819344A (en) * | 2010-05-20 | 2010-09-01 | 友达光电股份有限公司 | Colored light-filtering touch base plate |
| TW201331669A (en) * | 2012-01-20 | 2013-08-01 | Innocom Tech Shenzhen Co Ltd | In-cell touch panel display |
| TW201541306A (en) * | 2014-04-29 | 2015-11-01 | Acer Inc | Method of producing in-cell touch panel and in-cell touch panel thereof |
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