CN105892778A - TN capacitance type In-Cell touch display panel - Google Patents
TN capacitance type In-Cell touch display panel Download PDFInfo
- Publication number
- CN105892778A CN105892778A CN201610195323.XA CN201610195323A CN105892778A CN 105892778 A CN105892778 A CN 105892778A CN 201610195323 A CN201610195323 A CN 201610195323A CN 105892778 A CN105892778 A CN 105892778A
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- China
- Prior art keywords
- touch
- control
- display panel
- array base
- base palte
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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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention provides a TN capacitance type In-Cell touch display panel. The panel consists of a lower array substrate, an upper color film substrate and liquid crystal filled between the array substrate and the color film substrate, wherein the lower array substrate and the upper color film substrate are arranged oppositely. The array substrate and the color film substrate are bonded through a frame adhesive coated outside a display area of the array substrate TFT and close to the peripheral edge. The upper color film substrate comprises a common electrode and a touch sensing electrode arranged on a conductive layer, and four corner electrodes are led out from four corners of the touch sensing electrode. The array substrate TFT comprises a signal driver and touch bonding pads, wherein a touch electrode lead is led out of each touch bonding pad to be connected with the signal driver. After the upper and lower substrates are combined, breakover between the touch bonding pads and golden balls of the frame adhesive is achieved, the signal driver sends out high-frequency alternating-current signals, transmits the signals to the touch bonding pads through the touch electrode leads, then transmits the signals to the four corner electrodes of the color film substrate through the golden balls of the frame adhesive and finally transmits the signals to the touch sensing electrode.
Description
Technical field
The present invention relates to Display Technique field, particularly to a kind of TN condenser type In-Cell touch-control display panel.
Background technology
Along with the continuous progress of flat panel display, increasing display device is configured with touch screen.At present,
According to operation principle and the medium of transmission information of touch screen, touch screen can be divided into four big classes, be electricity respectively
Resistive touch screen, capacitor induction type touch screen, infrared-type touch screen and surface acoustic wave touch screen.For
For capacitor induction type touch screen, In-Cell Touch technology is by its low cost, low-power consumption and can realize
The advantages such as multi-point touch become the main flow in touch field, become a following new developing direction.
Capacitance technology touch screen CTP (Capacity Touch Panel) is that the faradic current utilizing human body is carried out
Work, capacitance plate is one piece of four layers of compound glass screen, and the inner surface of glass screen and interlayer are respectively coated with one layer of ITO and (receive
Rice indium tin metal oxide), outermost layer is the silicon soil glassivation that only 0.0015mm is thick, interlayer ITO
Coating makees work surface, and four electrodes are drawn at four angles, and internal layer ITO is for shielding layer to ensure working environment.When with
When family touches capacitance plate, owing to human body electric field, user's finger and work surface form a coupling electric capacity, because work
Making to be connected on face high-frequency signal, then finger walks a electric current the least, and this electric current is respectively from the four of screen
Electrode on individual angle flows out, and the distance of the electric current and finger to corner flowing through four electrodes in theory becomes ratio
Example, controller is by calculating position to the precision of four current ratios.
Existing market uses On-cell formula touch LCD screen substantially, and On-cell refers to touch configuration on touch panel
The method touching sensor, this mode adds the thickness of screen, adds the technique that capacitance plate assembles with display screen,
Thus bring assembling para-position to be forbidden to wait series of problems, therefore cost is higher.
In order to reduce manufacturing cost, TN profile plate is utilized to have complete Common ITO electrode layer in CF side,
Can be used to transmit touch signal, utilize this feature, the present invention provides a kind of TN condenser type In-Cell touch-control
Display floater.
Summary of the invention
Utilizing TN profile plate to have this feature of complete common electrode layer in color membrane substrates side, the present invention provides one
Kind of TN condenser type In-Cell touch-control display panel, this panel include the lower array base palte that is oppositely arranged and
Upper color membrane substrates and the liquid crystal composition being filled between array base palte and color membrane substrates；Array base palte and coloured silk
Film substrate is by being coated in outside the viewing area of array base palte TFT and being glued by two substrates near the frame glue of edge
Close；
Wherein, upper color membrane substrates includes arranging common electrode on the electrically conductive and touch-control sensing electrode, and from touching
Four corner electrodes are drawn at four angles of control induction electrode respectively；Lower array base palte TFT is included in this array base palte
The signal driver that periphery, viewing area is arranged and the touch-control pad of the corner setting in this periphery, viewing area, and often
One touch-control pad is drawn a touch control electrode lead-in wire and is connected with signal driver；
After upper color membrane substrates and lower array base palte group are vertical, the gold goal of described touch-control pad and described frame glue is led
Logical, described signal driver sends high frequency ac signal and is sent to touch-control pad by touch control electrode lead-in wire and leads to
The gold goal crossing glue frame is transferred to four corner electrodes of color membrane substrates, is eventually transferred to touch-control sensing electrode.
Further, described touch-control pad partly overlaps with described frame glue；
Further, described signal driver flyback time delay after this display floater completes each frame scan
Section, sends high frequency ac signal；
Further, the intermediate value of described high frequency ac signal is the voltage of the common electrode of described color membrane substrates；
Further, the resistance of the described touch control electrode lead-in wire from the extraction of touch-control pad keeps consistent；
Further, the line style of the described touch control electrode lead-in wire from the extraction of touch-control pad is linear type, and its every is touched
Control contact conductor length and width is different；
Further, the line style of the described touch control electrode lead-in wire from the extraction of touch-control pad is partial straight lines type and part
Shaped form, its every touch control electrode wire length is consistent with width.
Beneficial effect: the present invention, for a kind of TN condenser type In-Cell touch-control display panel, contrasts prior art
The touch panel of On-cell, manufacturing process is simple, low cost.The thickness of display floater will not be increased, the most not
Assembling para-position can be brought to be forbidden to wait series of problems.
Accompanying drawing explanation
Fig. 1 is the TN condenser type In-Cell touch display panel structure schematic diagram of the present invention,
Fig. 2 is the tft array substrate schematic diagram of the present invention；
Fig. 3 is the profile at the TN condenser type In-Cell touch-control display panel edge of the present invention；
Fig. 4 is the tft array substrate schematic diagram of the present invention
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment, it is further elucidated with the present invention, it should be understood that these embodiments are only used for
The present invention is described rather than limits the scope of the present invention, after having read the present invention, those skilled in the art
Amendment to the various equivalent form of values of the present invention all falls within the application claims limited range.
In order to reduce manufacturing cost, utilize TN profile plate to have complete common electrode layer in CF side, can be used to
Transmission this feature of touch signal, the present invention provides a kind of TN condenser type In-Cell touch-control display panel.As
Shown in Fig. 1 to Fig. 3, this display floater includes the lower array base palte TFT100 that is oppositely arranged and upper color membrane substrates
CF200 and the liquid crystal LC composition being filled between array base palte TFT and color membrane substrates CF；And array base
Plate TFT and color membrane substrates CF is generally by being coated in outside the viewing area AA of array base palte TFT and close
Two substrates is bonded by the frame glue 300 of edge, and is additionally provided with gold goal 301 reinforcement support in the range of frame glue,
And by gold goal, the conductive layer 23 of color membrane substrates and the common electrode layer 12 of array side are conducted.
Wherein, upper color membrane substrates 200 includes colored filter 21, black matrix" 22 and a conductive layer 23,
It is additionally provided with common electrode (not shown) and touch-control sensing electrode 231 on the electrically conductive, and from four angles difference
Draw four corner electrodes 232.Lower array base palte TFT100 includes the tft array 1 formed on the glass substrate 10
1 and be provided with signal driver 103 in AA periphery, viewing area and be provided with in the corner that viewing area AA is peripheral
Touch-control pad 101, the touch-control pad from corner draws touch control electrode lead-in wire 102 and signal driver 103 respectively
Connect.Wherein, the touch-control pad 101 that corner peripheral for viewing area AA is provided with partly overlaps with frame glue 300,
After upper color membrane substrates 200 and lower array base palte 100 groups stand, touch-control pad 101 and the gold goal 301 of frame glue
Conducting, the high frequency ac signal that signal driver 103 sends is sent to touch-control by touch control electrode lead-in wire 102 and welds
Dish 101 is transferred to four corner electrodes 232 of color membrane substrates CF again by the gold goal 301 of glue frame, is eventually transferred to
Touch-control sensing electrode 231.
It is fixed on a certain DC voltage in view of the common electrode of CF substrate during TN profile plate real work, executes
Add ac signal and may cause the change of liquid crystal cell internal electric field, thus cause the yawing moment of liquid crystal to become
Change, affect display effect.Cause the change of liquid crystal cell internal electric field in order to avoid applying ac signal, signal drives
The dynamic device 103 flyback section time delay after liquid crystal panel completes each frame scan, send high frequency ac signal to
Four corner electrodes of color membrane substrates CF.And the common electricity that the intermediate value of this high frequency ac signal is color membrane substrates CF
The voltage of pole.
In order to obtain more accurate measurement result, it is drawn out to the touch control electrode of signal driver from corner touch-control pad
The resistance of lead-in wire keeps consistent, and the line style of 4 touch control electrode lead-in wires can be linear type, but its length and width is not
With.Article 4, the line style of touch control electrode lead-in wire can be partial straight lines type and partial trace type, but 4 touch control electrode are drawn
The length and width of line is consistent；As shown in Figure 4.
The present invention provides a kind of TN condenser type In-Cell touch-control display panel, the On-cell of contrast prior art
Touch panel, manufacturing process is simple, low cost.The thickness of display floater will not be increased, also will not bring group
Dress para-position is inaccurate waits series of problems.
Claims (7)
1. a TN condenser type In-Cell touch-control display panel, this panel include the lower array base palte that is oppositely arranged and
Upper color membrane substrates and the liquid crystal composition being filled between array base palte and color membrane substrates；Array base palte and color film base
Two substrates is bonded by plate by being coated in outside the viewing area of array base palte TFT the frame glue of the most close edge；
Wherein, upper color membrane substrates includes arranging common electrode on the electrically conductive and touch-control sensing electrode, and from
Four corner electrodes are drawn at four angles of touch-control sensing electrode respectively；Lower array base palte TFT is included in this array base palte
The signal driver that periphery, viewing area is arranged and the touch-control pad of the corner setting in this periphery, viewing area, and often
One touch-control pad is drawn a touch control electrode lead-in wire and is connected with signal driver；
After upper color membrane substrates and lower array base palte group are vertical, the gold goal of described touch-control pad and described frame glue is led
Logical, described signal driver sends high frequency ac signal and is sent to touch-control pad by touch control electrode lead-in wire and leads to
The gold goal crossing glue frame is transferred to four corner electrodes of color membrane substrates, is eventually transferred to touch-control sensing electrode.
A kind of TN condenser type In-Cell touch-control display panel the most according to claim 1, it is characterised in that:
Described touch-control pad partly overlaps with described frame glue.
A kind of TN condenser type In-Cell touch-control display panel the most according to claim 1, it is characterised in that:
Described signal driver flyback section time delay after this display floater completes each frame scan, sends high frequency
AC signal.
4., according to a kind of TN condenser type In-Cell touch-control display panel described in claim 1 or 3, its feature exists
In: the intermediate value of described high frequency ac signal is the voltage of the common electrode of described color membrane substrates.
A kind of TN condenser type In-Cell touch-control display panel the most according to claim 1, it is characterised in that:
The resistance of the described touch control electrode lead-in wire from the extraction of touch-control pad keeps consistent.
The most according to claim 1 or 5, a kind of TN condenser type In-Cell touch-control display panel, its feature exists
In: the line style of the described touch control electrode lead-in wire from the extraction of touch-control pad is linear type, and its every touch control electrode is drawn
Line length is different with width.
The most according to claim 1 or 5, a kind of TN condenser type In-Cell touch-control display panel, its feature exists
In: the line style of the described touch control electrode lead-in wire from the extraction of touch-control pad is partial straight lines type and partial trace type,
Its every touch control electrode wire length is consistent with width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610195323.XA CN105892778A (en) | 2016-03-31 | 2016-03-31 | TN capacitance type In-Cell touch display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610195323.XA CN105892778A (en) | 2016-03-31 | 2016-03-31 | TN capacitance type In-Cell touch display panel |
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| Publication Number | Publication Date |
|---|---|
| CN105892778A true CN105892778A (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610195323.XA Pending CN105892778A (en) | 2016-03-31 | 2016-03-31 | TN capacitance type In-Cell touch display panel |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110130298A (en) * | 2010-05-27 | 2011-12-05 | 엘지디스플레이 주식회사 | Liquid crystal display device including touch panel and method for manufacturing the same |
| CN202075715U (en) * | 2011-06-02 | 2011-12-14 | 京东方科技集团股份有限公司 | Touch screen and touch equipment |
| CN103123561A (en) * | 2007-08-07 | 2013-05-29 | Nlt科技股份有限公司 | Flat- panel display device and electronic apparatus |
| CN103676272A (en) * | 2012-09-24 | 2014-03-26 | 株式会社日本显示器 | Liquid crystal display device |
| CN104020911A (en) * | 2014-05-30 | 2014-09-03 | 京东方科技集团股份有限公司 | In cell touch panel and display device |
-
2016
- 2016-03-31 CN CN201610195323.XA patent/CN105892778A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123561A (en) * | 2007-08-07 | 2013-05-29 | Nlt科技股份有限公司 | Flat- panel display device and electronic apparatus |
| KR20110130298A (en) * | 2010-05-27 | 2011-12-05 | 엘지디스플레이 주식회사 | Liquid crystal display device including touch panel and method for manufacturing the same |
| CN202075715U (en) * | 2011-06-02 | 2011-12-14 | 京东方科技集团股份有限公司 | Touch screen and touch equipment |
| CN103676272A (en) * | 2012-09-24 | 2014-03-26 | 株式会社日本显示器 | Liquid crystal display device |
| CN104020911A (en) * | 2014-05-30 | 2014-09-03 | 京东方科技集团股份有限公司 | In cell touch panel and display device |
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Application publication date: 20160824 |