CN103793091B - Touch display panel and touch display device - Google Patents
Touch display panel and touch display device Download PDFInfo
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- CN103793091B CN103793091B CN201210433319.4A CN201210433319A CN103793091B CN 103793091 B CN103793091 B CN 103793091B CN 201210433319 A CN201210433319 A CN 201210433319A CN 103793091 B CN103793091 B CN 103793091B
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Abstract
Disclosed are a touch display panel and a touch display device. The touch display panel comprises a first substrate, a second substrate, a display layer, a plurality of scanning electrodes, a plurality of data electrodes, a plurality of thin film transistors, a plurality of touch driving electrodes and a plurality of touch sensing electrodes. The display layer is arranged between the first substrate and the second substrate. The scanning electrodes and the data electrodes are arranged on the first substrate and are intersected in an orthogonal manner. The thin film transistors are electrically connected with the scanning electrodes and the data electrodes. The touch driving electrodes are disposed between the data electrodes and the second substrate and arranged on the scanning electrodes in an overlapped manner. The touch sensing electrodes are arranged on the data electrodes in an overlapped manner. The scanning electrodes, the data electrodes, the touch driving electrodes and the touch sensing electrodes are electrically insulated mutually, and voltage input into the touch driving electrodes is negative. The touch display device comprises the touch display panel and a control unit.
Description
Technical field
The present invention relates to a kind of display device and its display floater, particularly a kind of touch control display apparatus and apply this touch-control
The touch-control display panel of display floater.
Background technology
With the maturation of various Display Technique and touch technology, touch-control display panel starts widely to be integrated in electronics and sets
Standby upper, and again with the touch-control display panel of embedded (in-cell) as trend.The feature of this touch-control display panel is to show
Circuit and touch-control circuit are produced in same structure in the lump, after the completion of will have display and touch controllable function simultaneously, and make volume
More lightening, wherein above-mentioned touch-control circuit includes touch-control drive electrode and touch-control sensing electrode, and above-mentioned electrode can be adopted
With electrically conducting transparent material or metal material.
However, electrically conducting transparent material resistance value is high compared with metal material, rc load (rc loading) is also therefore higher, not
It is suitable for large-sized design.But metal is light tight, aperture opening ratio can be caused to decline.In this regard, can be by metal touch-control sensing
The top (overlapping in positive apparent direction) in data electrode or scan electrode is covered in the design of electrode and touch-control drive electrode, with reduction for
The impact of aperture opening ratio.
In general, touch-control drive electrode can produce a positive voltage signal, in order to form a touch-control with touch-control sensing electrode
Whether inductance capacitance, touched with detecting.But this positive voltage signal can by capacitive coupling so that with this touch-control drive electrode
The electricity opening by mistake the reaction opened and causing pixel electrode close to back of the body passage (backchannel) generation of the thin film transistor (TFT) of (overlapping)
Buckling, correct luma data voltage in impact pixel, and produce bad display effect.
Content of the invention
The present invention provides a kind of touch-control display panel, and this touch-control display panel includes first substrate, second substrate, display
Layer, multiple scan electrode, multiple data electrode, multiple thin film transistor (TFT), multiple touch-control drive electrode and multiple touch-control sensing electricity
Pole.Display layer is arranged between this first substrate and this second substrate.Scan electrode and data electrode are arranged at this first base
Plate, and orthogonal.Thin film transistor (TFT) is electrically connected with these scan electrodes and these data electrodes.Touch-control drive electrode is between this
A bit between data electrode and this second substrate, and overlap on these scan electrodes.Touch-control sensing electrode overlaps
On these data electrodes.Wherein, these scan electrodes, these data electrodes, these touch-control drive electrodes and these touch-controls
Sensing electrode is electrically insulated from, and input these touch-control drive electrodes voltage be negative value.
The present invention provides a kind of touch control display apparatus, and it has a touch-control display panel as above and and controls dress
Put.Control device is electrically connected with touch-control display panel.
In sum, the embodiment of the present invention provides a kind of touch-control display panel and touch control display apparatus, wherein said
The touch-control drive electrode of touch-control display panel and touch-control sensing electrode be overlapped in respectively scan electrode and data electrode and that
This is electrically insulated.And the voltage inputting this touch-control drive electrode is negative value, it can thus be avoided thin film transistor (TFT) back of the body passage opens by mistake
Open the impact of pixel gray level change caused by effect.
For enabling feature and the technology contents being further understood that the present invention, refer to below in connection with the present invention specifically
Bright and accompanying drawing, but these explanations and institute's accompanying drawings are intended merely to the present invention is described, rather than to scope of the presently claimed invention
Make any restriction.
Brief description
Fig. 1 is the profile of the touch-control display panel of the embodiment of the present invention.
Fig. 2 is the top view of the touch-control display panel of the embodiment of the present invention.
Fig. 3 is the profile of the touch-control display panel of another embodiment of the present invention.
Fig. 4 is the top view of the touch-control display panel of another embodiment of the present invention.
[main element symbol description]
1st, 1 ', 2 touch-control display panel
10 first substrates
20 second substrates
22 upper surfaces
24 lower surfaces
30 display layers
40 thin film transistor (TFT)s
60 scan electrodes
70 data electrodes
210 colored filters
220 black matrix"s
410 grids
420 gate insulators
430 semiconductor layers
440a source electrode
440b drains
450 first insulating barriers
460 pixel electrodes
470 second electrodes
510 flatness layers
520 touch-control drive electrodes
520a electrode district
530 second insulating barriers
540th, 540 ' touch-control sensing electrode
Specific embodiment
Fig. 1 is the profile of the touch-control display panel 1 of the embodiment of the present invention, and the touch-control that Fig. 2 is the embodiment of the present invention shows
Show the top view of panel 1, the wherein profile of Fig. 1 is to carry out section according to the hatching 1-1 of Fig. 2 and obtains.Refer to Fig. 1 and
Fig. 2, touch-control display panel 1 includes an a first substrate 10, second substrate 20, a display layer 30, multiple thin film transistor (TFT) 40, many
Bar along one first axially (such as x-axis) scan electrode 60 side by side, a plurality of along one second axial (such as y-axis) number side by side
According to electrode 70, a plurality of along this first axially side by side and overlapping scan electrode 60 touch-control drive electrode 520 and a plurality of along
This second axially side by side and overlapped data electrode 70 touch-control sensing electrode 540.
The material of first substrate 10 and second substrate 20 can be glass, metal, plastics or its compound sheet material, its as
Support structure and stop aqueous vapor destroy display layer 30.Display layer 30 can polarisation-affecting light structure (such as liquid crystal, lc) or for can lead
Dynamic luminous structure (such as Organic Light Emitting Diode, oled), can be sealed in the by encapsulant (as silent or frit)
Between one substrate 10 and second substrate 20.
Multiple scan electrodes 60 (are formed on first substrate 10) between first substrate 10 and display layer 30, with equidistant
Mode along the first axial x side by side, each scan electrode 60 is electrically connected with corresponding turntable driving ic position and (does not show
Go out).Multiple data electrodes 70 between scan electrode 60 place layer not and between display layer 30, along the second axle in the way of equidistant
To y side by side, each data electrode 70 is electrically connected with corresponding data-driven ic position.Wherein, scan electrode 60 and data
Electrode 70 is substantially orthogonal, and is electrically insulated from, and data electrode 70 relative scanning electrode 60 is closer to display layer 30.
Multiple thin film transistor (TFT)s 40 are located between first substrate 10 and display layer 30, in order to as switch element and many
Individual thin film transistor (TFT) 40 is arrangement in a matrix fashion that is to say, that multiple thin film transistor (TFT) 40 is along the first axial x and the
Two axial y arrangements.Scan electrode 60 is electrically connected with grid part with thin film transistor (TFT) 40.Data electrode 70 and thin film transistor (TFT)
40 and source electrode portion or drain electrode part be electrically connected with.
Specifically, the bottom-gate formula thin film transistor (TFT) 40 of the present embodiment include a grid 410, a gate insulator 420,
Semi-conductor layer 430, a source electrode 440a, a drain electrode 440b and one first insulating barrier 450.Grid 410 is formed at first substrate
On 10, with scan electrode 60 copline (completing in same technique) and be electrically connected to each other.Gate insulator 420 is located at grid
410 and the top of first substrate 10, and cover grid 410 and first substrate 10 so that scan electrode 60 and data electricity
Pole 70 is electrically insulated.Semiconductor layer 430 is formed on gate insulator 420 with respect to grid 410 position, and semiconductor layer
430 areas are generally less than grid 410 region area.Source electrode 440a and drain electrode 440b is located at corresponding on semiconductor layer 430
Two ends, and be respectively adjacent to the two ends (as shown in Figure 1) in grid 410, wherein source electrode 440a or drain electrode 440b one of them with
Data electrode 70 is electrically connected with.Between source electrode 440a, drain electrode 440b, there is an opening, expose the semiconductor layer 430 of lower section, this
Partial semiconductor layer 430 is used as passage (channel), and the width of passage is the spacing of source electrode 440a and drain electrode 440b,
And the length of passage is source electrode 440a overlapping distance parallel with drain electrode 440b.First insulating barrier 450 be located at source electrode 440a and
The top of drain electrode 440b, and cover the semiconductor layer 430 of source electrode 440a, drain electrode 440b and lower section.
Grid 410, source electrode 440a and drain electrode 440b can be low resistance conductive material, e.g. copper, aluminum or other
Metal or alloy.The material of gate insulator 420 can be sinx, siox or a combination thereof.The material of semiconductor layer 430
Can be the semi-conducting materials such as non-crystalline silicon, polysilicon or igzo.The material of the first insulating barrier 450 can be sinx, siox, resin
Or pi (polyimide).However, the present invention does not limit other the used material of above-mentioned layer.
Refer to Fig. 1 and Fig. 2, the present embodiment also has flatness layer 510 and the second insulating barrier on the first insulating barrier 450
530.The first electrode 460 of one patterning is located between flatness layer 510 and the second insulating barrier 530, and the second electricity according to patterning
Pole 470 is between display layer 30 and the second insulating barrier 530.One of first electrode 460 or second electrode 470 connect by one
Contact hole hole (not shown) down extends and is electrically connected with source electrode 440a or drain electrode 440b, forms pixel electrode, another electrode is then
Connect common voltage source, form common electrode.The material of flatness layer 510 and the second insulating barrier 530 can be sinx, siox, tree
Fat, organic polymer or pi (polyimide).The material of first electrode 460 and second electrode 470 can be
Bright tin indium oxide (ito), indium zinc oxide (izo) or metal.
When touch-control display panel 1 drives, scan electrode 60 can provide a voltage to grid 410, the absolute value of this voltage
More than this thin film transistor (TFT) 40 critical voltage (threshold voltage) so that semiconductor layer 430 formed a passage, and
Electrically conduct each other between source electrode 440a and drain electrode 440b.Afterwards, data electrode 70 can provide a pixel voltage to come to first
Electrode 460 or second electrode 470 are charged, pixel electrode its together with interelectrode voltage difference formed fringe field
(fringe field), in order to change display layer 30 state, to show grey menu.
What deserves to be explained is, in the present embodiment, the carrier of semiconductor layer 430 is electronics, therefore drives scan electrode 60
Voltage be a positive voltage.If scan electrode 60 provides a negative voltage to grid 410, this passage will not be formed, on the whole, leakage
Pole 440b then cannot be charged to pixel electrode 460.In addition, in the present embodiment, input grid 410 is to form the picture of passage
Plain voltage is 22v, and inputs grid 410 with the pixel voltage of closing passage for -7v.However, the present invention is not intended to limit input grid
The pixel voltage value of pole 410.
Refer to Fig. 1 and Fig. 2, a plurality of touch-control drive electrode 520 arranging and being mutually juxtaposed along the first axial direction is located at
Between flatness layer 510 and the second insulating barrier 530, observed by the positive apparent direction of touch-control display panel 1, touch-control drive electrode 520 with
The part or all of overlap of scan electrode 60, and the width of touch-control drive electrode 520 is less than or equal to the width of scan electrode 60, with
Reduce the impact to aperture opening ratio.It is exhausted that a plurality of touch-control sensing electrode 540 axially arranging and being mutually juxtaposed along second is located at second
Between edge layer 530 and display layer 30, from positive apparent direction observation, touch-control sensing electrode 540 and the data electrode of touch-control display panel 1
70 part or all of overlaps, and the width of touch-control sensing electrode 540 is less than or equal to the width of data electrode 70, split to reduce
The impact of mouth rate.In this embodiment, touch-control drive electrode 520 can be with first electrode 460 copline, same material and technique
(being all ito), also can with first electrode 460 copline but different materials and technique (touch-control drive electrode 520 is metal, and the
One electrode 460 is ito).Touch-control sensing electrode 540 can with second electrode 470 copline, same material and technique (being all ito),
Also can with second electrode 470 copline but different materials and technique (touch-control sensing electrode 540 is metal, and second electrode 470 is
Ito).Scan electrode 60, data electrode 70, touch-control drive electrode 520 and touch-control sensing electrode 540 are electrically insulated from, and that
This drive signal independently completely cuts off.
The overlapping region of multiple touch-control drive electrodes 520 and multiple touch-control sensing electrode 540 is defeated in touch-control drive electrode 520
Form the capacitance matrix for touch-control sensing, when user finger is close to this capacitance matrix region when entering a touch-control driving voltage
When, the charge distributing situation of the electrode of electric capacity can be changed, in other words change capacitance size, controller (not shown), example
Microprocessor (micro processor) in this way, can be calculated further by receiving the change in voltage of touch-control sensing electrode 540
Contact position.
If touch-control drive electrode 520 has lap with the passage of semiconductor layer 430, this part is equivalent to other one
Individual grid 410, the conductive characteristic changing possible impact channel part of its voltage.In this embodiment, the input electricity of grid 410
If pressing on the occasion of and be more than the critical voltage of thin film transistor (TFT) 40, then thin film transistor (TFT) 40 passage is opened, can be by data electrode 70
Input data voltage, or data electrode 70 is given by first electrode 460 electric leakage.Therefore, when touch-control drive electrode 520 and quasiconductor
The passage of layer 430 has lap, when touch-control drive electrode 520 input one is higher than the positive voltage of critical voltage, film crystal
Pipe 40 passage is opened a little, and in pixel, voltage is affected to produce a difference by data electrode 70, in turn results in the feelings of GTG distortion
Condition.Touch-control drive electrode 520 affect thin film transistor (TFT) 40 semiconductor layer 430 channel case except relevant with lap it
Outward, also relevant with the characteristic of voltage swing, the thickness of insulation dielectric layer and dielectric coefficient and semiconductor layer 430.
For example, setting touch drive electrode 520 is completely overlapped with semiconductor layer 430 passage of thin film transistor (TFT) 40,
And the thickness of flatness layer 510 is 2.5mm(millimeter), and the thickness of the first insulating barrier 450 is 0.2mm, when touch-control drive electrode 520
When voltage is changed into 5v and continued 4 microseconds (us), the voltage of first electrode 460 can be promoted to 2.195v from the 2.1v of script,
That is the voltage difference of first electrode 460 is 95mv(millivolt), such voltage difference is in six (6bits) display devices
The middle difference (GTG changes about 40mv) that can cause about 2 ~ 3 GTGs, and can cause about 9 in eight (8bits) display devices ~
The difference (GTG change about 10mv) of 10 GTGs it is however generally that, visually the voltage differences naked eyes of more than 40mv can be obvious
Impression, and the voltage differences between 10mv to 40mv are then the visual capacity of observer or can feel it, as between 0mv to 10mv
Voltage differences be then difficult to by naked eyes.One of embodiment of the present invention can by above-mentioned voltage difference be down between 0 to
Between 40mv.
When touch-control drive electrode 520 voltage is negative value (less than the critical voltage of thin film transistor (TFT) 40), then can ensure that thin film
Transistor 40 pathway closure, the voltage of first electrode 460 keeps former input data voltage.The value of this negative voltage can design-
1v to -40v, the more preferably value of negative voltage can design between -5v to -20v.However, the present invention is not intended to limit input electricity
The magnitude of voltage of polar region 520a, in other embodiments, the value of negative voltage can fall outside -1v to -40v.
Referring to Fig. 1, touch-control display panel 1 also has colored filter 210 and black matrix" 220.Colored filter
Mating plate 210 is between second substrate 20 and display layer 30, and black matrix" 220 is between colored filter 210 and the second base
Between plate 20.Black matrix" 220 also can mutually be folded by colored filter 210 and be formed.Black matrix" 220 is in order to cover lower section overlap
Scan electrode 60, data electrode 70, touch-control drive electrode 520 and touch-control sensing electrode 540, therefore width are more than above-mentioned electrode.
In addition, the present embodiment is the Display Technique using horizontal component of electric field, e.g. boundary electric field switching (ffs, fringe field
Switching Display Technique), the voltage difference between first electrode 460 and second electrode 470 be data voltage with common electric voltage it
Difference, this voltage difference is to produce an electric field so that the liquid crystal molecule of display layer 30 rotates.
However, in other embodiments, it would however also be possible to employ other Display Techniques, e.g. in-plane change (ips, in
Plane switching) Display Technique.It is noted that in the present embodiment, touch-control drive electrode 520 is between flat
Layer 510 and second is between insulating barrier 530, and and first electrode 460 copline, and touch-control sensing electrode 540 is exhausted between second
Between edge layer 530 and display layer 30, and and second electrode 470 copline.However, the present invention does not limit touch-control drive electrode
520 with the position of touch-control sensing electrode 540.Touch-control drive electrode 520 can be with scan electrode 60 or data electrode 70 copline (electricity
Property insulation), also can be with second electrode 470 copline (being electrically insulated).Touch-control sensing electrode 540 can also with data electrode 70 or
First electrode 460 copline (being electrically insulated), touch-control sensing electrode 540 can also position in colored filter 210 and black square
It is also possible to be located between colored filter 210 and display layer 30 between battle array 220, relatively show even on second substrate 20
Another surface of layer 30.
Fig. 3 is the profile of the touch-control display panel 1 ' of another embodiment of the present invention.Refer to Fig. 3, in this embodiment,
The structure of display floater 1 ' is generally identical with previous embodiment.The display floater 1 ' of the present embodiment is using being for example a vertically aligned
The Display Technique of (va, vertical alignment).The second electrode 470 of touch-control display panel 1 ' between display layer 30 and
Between colored filter 210, touch-control sensing electrode 540 and second electrode 470 copline (being electrically insulated), data electrode 70 with aobvious
Show and between layer 30, have no flatness layer 510 and the second insulating barrier 530, touch-control drive electrode 520 is with first electrode 460 copline (electrically
Insulation).
Fig. 4 is the top view of the display floater 2 of another embodiment of the present invention.Refer to Fig. 4, the structure of display floater 2 is big
Identical with display floater 1 in cause, here does not repeat.However, compared to the display floater 1 of previous embodiment, in this enforcement
In example, touch-control drive electrode 520 electrode district 520a only covers the top surface aisle spare of 1/23 semiconductor layer 430, first electrode
460 voltage changes into 38.73mv, less than 40mv that is to say, that the GTG optical difference caused by such voltage difference relatively
It is not easy to be detected by the human eye.
Touch-control display panel 1 increases (not shown) after control device (not shown) or backlight module, can apply to multiple
Different touch control display products.Control device includes motherboard, image chip, central processing unit and multiple passive device.
Control device can be used to control the operation of touch-control display panel 1, out-put supply to backlight module, can with received image signal extremely
Image chip etc..Touch control display apparatus can be desktop computer used LCD screen, the screen of notebook computer, liquid crystal
TV and the screen of hand-hold electronic device, wherein above-mentioned hand-hold electronic device is, for example, mobile phone, digital camera, digital photography
Machine, hand held Game device or personal digital aid (PDA) (personal digital assistant, pda) etc..
In sum, the invention provides a kind of touch-control display panel, described touch-control display panel include first substrate,
Second substrate, display layer, multiple thin film transistor (TFT), a plurality of along one first axially the multi-strip scanning electrode of arrangement, a plurality of along
One second data electrode axially arranging.Also include a plurality of touch-control sensing electrode and a plurality of touch-control drive electrode, and above-mentioned electricity
Pole is all electrically insulated.The present invention inputs a negative voltage to touch-control drive electrode, so can reduce fault open thin film transistor (TFT)
Gray scale variation caused by passage.Secondly, the present invention can also cover semiconductor layer surface channel using changing touch-control drive electrode
The modes such as long-pending size, make the change in voltage that TFT channels cause between 0 to 40mv, to improve display floater GTG
The situation of distortion.
The foregoing is only embodiments of the invention, it is not limited to the scope of patent protection of the present invention.Any
The those of ordinary skill in field, in the equivalence replacement without departing from the change in spirit and scope of the invention, made and retouching, still
For in the scope of patent protection of the present invention.
Claims (10)
1. a kind of touch-control display panel is it is characterised in that described touch-control display panel includes:
One first substrate；
One second substrate；
One display layer, between described first substrate and described second substrate；
Multiple scan electrodes, between described first substrate and described display layer；
Multiple data electrodes, between described scan electrode and described display layer, and are interlocked with described scan electrode；
Multiple thin film transistor (TFT)s, are arranged on described first substrate, are electrically connected with described scan electrode and described data electrode；
Multiple touch-control drive electrodes, between described data electrode and described display layer and overlap in described scan electrode
On；And
Multiple touch-control sensing electrodes, between the plurality of data electrode and described second substrate, overlap in described number
On electrode；
Described scan electrode, described data electrode, described touch-control drive electrode and described touch-control sensing electrode are electrically insulated from,
And the voltage of the described touch-control drive electrode of input is negative value.
2. touch-control display panel according to claim 1 is it is characterised in that each described thin film transistor (TFT) includes:
One grid, is arranged on described first substrate；
One gate insulator, covers described grid and described first substrate；
Semi-conductor layer, relatively described grid is arranged on described gate insulator；
One source electrode, is arranged at the side of described semiconductor layer；
One drain electrode, is arranged at the opposite side that described semiconductor layer is with respect to described drain electrode；And
One first insulating barrier, covers described drain electrode, described source electrode and described semiconductor layer；
Described semiconductor layer between described source electrode and described drain electrode forms a passage, and described passage is driven with described touch-control
Electrode has an overlapping region, and the area of described overlapping region is between 0 and the area of described passage.
3. touch-control display panel according to claim 2 is it is characterised in that described touch-control display panel also includes:
One second insulating barrier, is arranged on described first insulating barrier；
One flatness layer, between described first insulating barrier and described second insulating barrier；
One first electrode, between described flatness layer and described second insulating barrier；And
One second electrode, between described second insulating barrier and described display layer；
One of them of described first electrode and described second electrode is electrically connected with described drain electrode.
4. touch-control display panel according to claim 3 is it is characterised in that described touch-control drive electrode is electric with described first
Pole copline, and described touch-control sensing electrode and described second electrode copline.
5. touch-control display panel according to claim 3 it is characterised in that input described touch-control drive electrode voltage
Period, the described first electrode being electrically connected with described drain electrode or the voltage of described second electrode are changed between 0 and 40 millivolts
Between.
6. touch-control display panel according to claim 2 is it is characterised in that described touch-control display panel also includes:
One second insulating barrier, is arranged on described first insulating barrier；
One first electrode, between described display layer and described first insulating barrier；And
One second electrode, between described display layer and described second substrate；
Described first electrode is electrically connected with described drain electrode.
7. touch-control display panel according to claim 6 is it is characterised in that described touch-control drive electrode is electric with described first
Pole copline, and described touch-control sensing electrode and described second electrode copline.
8. touch-control display panel according to claim 6 it is characterised in that input described touch-control drive electrode voltage
Period, and the voltage change of the described first electrode of described drain electrode electric connection is between 0 and 40 millivolts.
9. touch-control display panel according to claim 1 is it is characterised in that the material of described touch-control drive electrode is gold
Belong to.
10. a kind of touch control display apparatus are it is characterised in that described touch control display apparatus include
One touch-control display panel, comprising:
One first substrate；
One second substrate；
One display layer, is arranged between described first substrate and described second substrate；
Multiple scan electrodes, are arranged on described first substrate；
Multiple data electrodes, are arranged on described first substrate and are interlocked with described scan electrode；
Multiple thin film transistor (TFT)s, are arranged on described first substrate, are electrically connected with described scan electrode and described data electrode,
And there is a critical voltage；
Multiple touch-control drive electrodes, between described data electrode and described display layer, overlap in described scan electrode
On and be electrically insulated with described scan electrode；
Multiple touch-control sensing electrodes, between the plurality of data electrode and described second substrate, overlap in described number
It is electrically insulated according on electrode and with described data electrode and described touch-control drive electrode；
The voltage inputting described touch-control drive electrode is less than the described critical voltage of described thin film transistor (TFT)；And
One control unit, described control unit is electrically connected with described touch-control display panel.
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| CN201210433319.4A CN103793091B (en) | 2012-11-02 | 2012-11-02 | Touch display panel and touch display device |
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| CN201210433319.4A CN103793091B (en) | 2012-11-02 | 2012-11-02 | Touch display panel and touch display device |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI550494B (en) | 2014-09-05 | 2016-09-21 | 晨星半導體股份有限公司 | In-cell touch display panel |
| CN104636015A (en) * | 2015-01-13 | 2015-05-20 | 昆山龙腾光电有限公司 | Touch display device |
| TWI611322B (en) * | 2015-05-15 | 2018-01-11 | 瑞鼎科技股份有限公司 | In-cell touch panel |
| CN104850291B (en) * | 2015-05-29 | 2017-11-10 | 上海天马微电子有限公司 | A kind of touch-screen, touch-control display panel and touch control device |
| CN110764326A (en) * | 2019-10-14 | 2020-02-07 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display panel and preparation method thereof |
| JP2022050151A (en) * | 2020-09-17 | 2022-03-30 | 双葉電子工業株式会社 | Touch panel drive device and touch panel device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101364019A (en) * | 2007-08-09 | 2009-02-11 | 乐金显示有限公司 | Liquid crystal display device |
| CN102023440A (en) * | 2009-09-15 | 2011-04-20 | 群康科技(深圳)有限公司 | Structure of touch screen and manufacturing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW451099B (en) * | 1998-01-23 | 2001-08-21 | Hitachi Ltd | Liquid crystal display device |
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2012
- 2012-11-02 CN CN201210433319.4A patent/CN103793091B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101364019A (en) * | 2007-08-09 | 2009-02-11 | 乐金显示有限公司 | Liquid crystal display device |
| CN102023440A (en) * | 2009-09-15 | 2011-04-20 | 群康科技(深圳)有限公司 | Structure of touch screen and manufacturing method thereof |
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