CN104570435A - Liquid crystal display device integrated with touch screen - Google Patents
Liquid crystal display device integrated with touch screen Download PDFInfo
- Publication number
- CN104570435A CN104570435A CN201310517047.0A CN201310517047A CN104570435A CN 104570435 A CN104570435 A CN 104570435A CN 201310517047 A CN201310517047 A CN 201310517047A CN 104570435 A CN104570435 A CN 104570435A
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- CN
- China
- Prior art keywords
- liquid crystal
- detection line
- crystal indicator
- substrate
- touch screen
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 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
Abstract
The invention relates to a liquid crystal display device integrated with a touch screen. The liquid crystal display device comprises a first base plate, a second base plate opposite to the first base plate, a drive wire arranged on the surface of the first base plate, a plurality of first detecting lines which are arranged between the first base plate and the second base plate, an insulating layer which is arranged between the drive wire and the first detecting lines, a plurality of bulges arranged on the surface of the second base plate as well as a public electrode layer covering the bulges and the surface of the second base plate, wherein an area, in which the first detecting lines are located, is superposed with an area, in which the drive wire is located; when the liquid crystal display device is touched, the public electrode layer on the surfaces of partial bulges at the touch position of the liquid crystal display device is in contact with the first detection lines.
Description
Technical field
The present invention relates to a kind of liquid crystal indicator of integrated touch screen.
Background technology
Liquid crystal indicator is the characteristic such as volume is little, Low emissivity, low power consumption and be widely used in mobile phone, personal digital assistant, notebook computer, personal computer and TV domain because having.Namely touch-screen has intuitively as a kind of input equipment, succinct, characteristic efficiently, have again sturdy and durable, reaction velocity fast, save space, be easy to the various features such as interchange.For user, only just need can realize control to equipment and operation with pointing the symbol that touch on the screen of digital device or word, making man-machine interaction become more smooth and easy.
From know-why, touch-screen is broadly divided into five basic kind, is respectively: vector pressure sensing touch-screen, resistive touch screen, capacitive touch screen, infrared touch panel, surface acoustic wave touch screen.Being most widely used of current resistive touch screen.Resistive touch screen by one deck glass or organic glass as basic unit, surface scribbles one deck ITO, be stamped one deck outside surface above again through cure process, smooth scratch resistant plastic layer, the inside surface of this plastic layer also scribbles one deck ITO, has many tiny waddings (spacer) two-layer ITO insulation to be separated between two-layer ITO.When finger presses screen, between two-layer ITO, there is a contact point, by detecting the change of electric field, obtaining X-axis and the Y-axis coordinate of touch point.For four-wire ohm, during two-layer ITO work, every layer all adds 5V voltage, a vertical direction, a horizontal direction, altogether needs four cables.
Touch-screen fits on the display screen of liquid crystal indicator by the liquid crystal indicator of prior art, to realize touch controllable function.But adopt the liquid crystal indicator with touch controllable function obtained in this way, because needs are assembled touch-screen separately, the production efficiency of this liquid crystal indicator is low and the liquid crystal indicator obtained is thicker.
Summary of the invention
The object of the present invention is to provide and a kind ofly can simplify assembling process and reduce the liquid crystal indicator of thickness.
A kind of liquid crystal indicator of integrated touch screen, comprise first substrate, the second substrate be oppositely arranged with this first substrate, be arranged at the drive wire on this first substrate surface, this liquid crystal indicator also comprises: be placed in this first, many the first detection lines between second substrate, be arranged at the insulation course between this drive wire and this first detection line, be arranged at multiple projection on this second substrate surface and cover the common electrode layer on this projection and this second substrate surface, the region at this first detection line region and this drive wire place is superimposed, when touching this liquid crystal indicator, the common electrode layer of the part convex surfaces at the touch position place of this liquid crystal indicator contacts with this first detection line.
The preferred scheme of one of the present invention, the thickness range of this insulation course is 1 micron ~ 9 microns.This insulation course is organic insulator.
The preferred scheme of one of the present invention, this liquid crystal indicator also comprises: the second detection line intersected with this first detection line, multiple touch control units that this first detection line and many second detection lines are formed, each touch control unit comprises the contact electrode be connected with this second detection line, when touching this liquid crystal indicator, the common electrode layer of another part part convex surfaces at this touch position place contacts electrode contact with this.
The preferred scheme of one of the present invention, the region at this contact electrode place and the region at this second detection line place superimposed.
The preferred scheme of one of the present invention, this drive wire is the gate line of this liquid crystal indicator.
The preferred scheme of one of the present invention, this first detection line is transparent electrode lines.
The preferred scheme of one of the present invention, this first detection line contacts electrode material with this is tin indium oxide, and this first detection line contacts electrode with this and synchronously formed.
The preferred scheme of one of the present invention, this insulation course is arranged between this contact electrode and this second detection line simultaneously, and this insulation course comprises contact hole, and this contact electrode is connected with this second detection line by this contact hole.
The preferred scheme of one of the present invention, this first substrate surface also arranges many data lines vertical with this gate line, and this second detection line is parallel with this data line, and the second detection line and this data line synchronization are formed.
Compared with prior art, liquid crystal indicator of the present invention by the function i ntegration of touch-screen to liquid crystal indicator two substrates between, thus obtain the liquid crystal indicator of integrated touch screen.Due to touch-screen function i ntegration to liquid crystal indicator two substrates between, eliminate in prior art the step fitted to by touch-screen on the liquid crystal panel of liquid crystal indicator, the assembling process of this liquid crystal indicator is more simple, and reduces the thickness of liquid crystal indicator.First detection line region of the liquid crystal indicator of integrated touch screen of the present invention and the region at this gate line place superimposed, the liquid crystal indicator of this integrated touch screen can't reduce aperture opening ratio because of the introducing of this first detection line.The insulation course that this thickness range is 1 micron ~ 9 microns is provided with between this first detection line and this gate line, therefore, capacitance coupling effect between this first detection line and this gate line can be ignored, and signal disturbing between the two can not affect the normal work of this liquid crystal indicator 10.
Accompanying drawing explanation
Fig. 1 is the sectional view of the liquid crystal indicator of integrated touch screen of the present invention.
Fig. 2 is the distribution schematic diagram of projection on second substrate of the liquid crystal indicator shown in Fig. 1.
Fig. 3 is the structure vertical view of the liquid crystal indicator of integrated touch screen of the present invention.
Fig. 4 is the first detection line of the liquid crystal indicator of integrated touch screen of the present invention, the distribution schematic diagram of the second detection line.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.
Refer to Fig. 1, Fig. 1 is the sectional view of the liquid crystal indicator of integrated touch screen of the present invention.This liquid crystal indicator 10 mainly comprises first substrate 17, the second substrate 16 be oppositely arranged with this first substrate 17, be arranged at the gate line 11 on this first substrate 17 surface, be arranged at this first, second substrate 17, the multiple touch control units intersected to form by many first detection lines 13 and many second detection lines 14 between 16, be arranged at the insulation course 18 between this gate line 11 and this first detection line 13, be arranged at the gate insulator 171 between this gate line 11 and this second detection line 14, be arranged at multiple protruding 161 of this second substrate 16 surface and cover the public electrode 162 on this projection 161 and this second substrate 16 surface, the region at this first detection line 13 region and this gate line 11 place is superimposed, each touch control unit comprises the contact electrode 15 be connected with this second detection line 14, when touching this liquid crystal indicator 10, the common electrode layer 162 on protruding 161 surfaces of part at the touch position place of this liquid crystal indicator 10 contacts with this first detection line 13, the common electrode layer 162 on protruding 161 surfaces of another part part at this touch position place contacts electrode 15 and contacts with this.
Below in conjunction with each accompanying drawing, describe the structure of the liquid crystal indicator 10 of integrated touch screen of the present invention in detail.As shown in Figure 1, liquid crystal indicator 10 of the present invention comprises and being parallel to each other and this first substrate 17 be oppositely arranged, second substrate 16 and the liquid crystal layer that is arranged between this first, second substrate 17,16.
The surface array of this second substrate 16 this first substrate 17 side contiguous is placed with multiple protruding 161, as shown in Figure 2.The surface coverage common electrode layer 162 of this projection 161 and this second substrate 16.Preferably, this second substrate 17 is colored filter substrates, and this common electrode layer 162 is transparent electrode layers, and the material of this common electrode layer 162 is tin indium oxide.
The surface of this first substrate 17 this second substrate 16 side contiguous arranges this gate line 11, be provided with gate insulator 171 between this gate line 11 and this second detection line 14, this second detection line 14 and this first detection line 13, this contacts between electrode 15 and is provided with insulation course 18.This insulation course 18 is provided with contact hole 172, and this contact electrode 15 is electrically connected with this second detection line 14 by this contact hole 172.Preferably, this first detection line 13 contacts electrode 15 and is transparency electrode with this, and this first detection line 13 contacts electrode 15 material with this is tin indium oxide, and this first detection line 13 contacts electrode 15 and synchronously formed with this.This contact electrode 15 is relative with the position at protruding 161 places on this second substrate 16 surface, and this first detection line 13 is relative with the position at another protruding 161 places on this second substrate 16 surface.
See also Fig. 1, Fig. 3, Fig. 4, wherein, Fig. 3 is the structure vertical view of liquid crystal indicator 10 of the present invention, Fig. 4 is the distribution schematic diagram of the second detection line 14, first detection line 13 of liquid crystal indicator 10 of the present invention, and the cut-open view shown in Fig. 1 is that this liquid crystal indicator 10 is along the cut-open view after the cutting line A-A cutting in Fig. 3.Be provided with between this first substrate 17 with this second substrate 16 many gate lines be parallel to each other 11, many be parallel to each other and the data line 12 vertical and crossing with this gate line 11.Many second detection lines 14 parallel with this data line 12, many first detection lines 13 parallel with this gate line 11.This second detection line 14 and this first detection line 13 mutually infall form multiple touch control unit, as shown in Figure 4.This second detection line 14 uses same metal level to realize film forming and etching with this data line 12, and namely this second detection line 14 and this data line 12 are synchronously formed.The region at this first detection line 13 region and this gate line 11 place is superimposed, and namely this first detection line 13 is arranged at the vertical direction of this gate line 11 region, is provided with this insulation course 18 between this first detection line 13 and this gate line 11.Preferably, this insulation course 18 is organic insulator, and the thickness range of this insulation course 18 is 1 micron ~ 9 microns.
Each touch control unit comprises a contact electrode 15, and each contact electrode 15 region is relative with the position at a contact hole 172 and protruding 161 places.The region at this contact electrode 15 place and the region at this second detection line 14 place superimposed, namely this contact electrode 15 realizes the electric connection with this second detection line 14 by the contact hole 172 of vertical direction.
The touch-control principle of the liquid crystal indicator 10 of this integrated touch screen is as follows:
This first, second detection line 13,14 is used for detecting the X-direction of this liquid crystal indicator 10 and the coordinate of Y-direction respectively.When touching this liquid crystal indicator 10, there is deformation in the touch position place of this second substrate 16.The common electrode layer 162 on protruding 161 surfaces of part at the touch position place of this second substrate 16 contacts with this first detection line 13, and the common electrode layer 162 on protruding 161 surfaces of another part at this touch position place contacts electrode 15 and contacts with this.The common electric voltage that the common electrode layer 162 on this second substrate 16 surface applies conducts on this first detection line 13 by contact, conduct on this second detection line 14 by this contact electrode 15, the voltage on first, second detection line 13,14 at this touch position place changes.By the detection to voltage on this first, second detection line 13,14, judge the touch position of this liquid crystal indicator 10, such as: this second detection line 14 detects the position of touch points X-direction, this the first detection line 13 detects the position of touch points Y-direction, can obtain the coordinate points at this touch position place.
Compared with prior art, liquid crystal indicator 10 of the present invention by the function i ntegration of touch-screen to liquid crystal indicator two substrates between, thus obtain the liquid crystal indicator of integrated touch screen.Due to touch-screen function i ntegration to liquid crystal indicator two substrates between, eliminate the step fitted to by touch-screen on the liquid crystal panel of liquid crystal indicator, the assembling process of this liquid crystal indicator is more simple, and reduces the thickness of liquid crystal indicator.
Compared with prior art, the first detection line 13 region of the liquid crystal indicator 10 of integrated touch screen of the present invention and the region at this gate line 11 place superimposed, be provided with this insulation course 18 between this first detection line 13 and this gate line 11.The liquid crystal indicator 10 of this integrated touch screen can't reduce aperture opening ratio because of the introducing of this first detection line 13.And owing to being provided with this insulation course 18 between this first detection line 13 and this gate line 11, capacitance coupling effect between this first detection line 13 and this gate line 11 can be ignored, and signal disturbing between the two can not affect the normal work of this liquid crystal indicator 10.This second detection line 14 uses same metal level to realize film forming and etching with this data line 12, namely this second detection line 14 and this data line 12 are synchronously formed, this first detection line 13 contacts electrode 15 and is synchronously formed with this, simplify the manufacturing process of the liquid crystal indicator 10 of this integrated touch screen.
In above-mentioned embodiment, the surface of this second substrate 16 is provided with protruding 161 and common electrode layer 162.This second substrate 16 also can be provided with colored filter and black matrix, black matrix makes of insulating material and etches protruding 161, then, whole second substrate 16 becoming one deck common electrode layer, is not limited to described in above-mentioned embodiment.
In above-mentioned embodiment, this second detection line 14 and this first detection line 13, this contacts between electrode 15 and is provided with insulation course 18, and this insulation course 18 is provided with contact hole 172, and this contact electrode 15 is connected with this second detection line 14 by this contact hole 172.This contact electrode 15 also can be electrically connected by wire or other modes and this second detection line 14, is not limited to described in above-mentioned embodiment.
In above-mentioned embodiment, the region at this first detection line 13 region and this gate line 11 place is superimposed, the region at this contact electrode 15 place and the region at this second detection line 14 place superimposed and realize and the electric connection of this second detection line 14.But be not limited to described in above-mentioned embodiment, this first detection line 13 also can be parallel with this data line 12, and the region at this first detection line 13 region and data line 12 place is superimposed.This second detection line 14 is parallel with this gate line 11.The region at this contact electrode 15 place and the region at this second detection line 14 place superimposed and realize and the electric connection of this second detection line 14.Namely the region at the first detection line 13 place of this liquid crystal indicator 10 and the region at the drive wire place of this liquid crystal indicator 10 superimposed.
Many embodiments having very big difference can also be formed when without departing from the spirit and scope of the present invention.Should be appreciated that except as defined by the appended claims, the invention is not restricted to specific embodiment described in the description.
Claims (2)
1. the liquid crystal indicator of an integrated touch screen, comprise first substrate, the second substrate be oppositely arranged with this first substrate, be arranged at the drive wire on this first substrate surface, it is characterized in that, this liquid crystal indicator also comprises: be placed in this first, many the first detection lines between second substrate, be arranged at the insulation course between this drive wire and this first detection line, be arranged at multiple projection on this second substrate surface and cover the common electrode layer on this projection and this second substrate surface, the region at this first detection line region and this drive wire place is superimposed, when touching this liquid crystal indicator, the common electrode layer of the part convex surfaces at the touch position place of this liquid crystal indicator contacts with this first detection line.
2. the liquid crystal indicator of integrated touch screen as claimed in claim 1, is characterized in that: the thickness range of this insulation course is 1 micron ~ 9 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310517047.0A CN104570435A (en) | 2013-10-27 | 2013-10-27 | Liquid crystal display device integrated with touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310517047.0A CN104570435A (en) | 2013-10-27 | 2013-10-27 | Liquid crystal display device integrated with touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104570435A true CN104570435A (en) | 2015-04-29 |
Family
ID=53086899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310517047.0A Pending CN104570435A (en) | 2013-10-27 | 2013-10-27 | Liquid crystal display device integrated with touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104570435A (en) |
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2013
- 2013-10-27 CN CN201310517047.0A patent/CN104570435A/en active Pending
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| C06 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |