CN203405787U - Liquid crystal display device with touch control circuit - Google Patents
Liquid crystal display device with touch control circuit Download PDFInfo
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- CN203405787U CN203405787U CN201320354743.XU CN201320354743U CN203405787U CN 203405787 U CN203405787 U CN 203405787U CN 201320354743 U CN201320354743 U CN 201320354743U CN 203405787 U CN203405787 U CN 203405787U
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 48
- 239000000758 substrate Substances 0.000 claims description 32
- 238000001914 filtration Methods 0.000 claims description 22
- 230000003287 optical effect Effects 0.000 claims description 22
- 238000001514 detection method Methods 0.000 abstract description 16
- 238000013461 design Methods 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 14
- 239000003086 colorant Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 210000001367 artery Anatomy 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model relates to a liquid crystal display device with touch control circuit, which comprises a display panel, a common electrode circuit and a touch control circuit. The display panel comprises a common electrode and a touch panel, the touch panel comprises a sensing electrode, a switch unit, a control electrode line and a detection electrode line, the sensing electrode, the switch unit, the control electrode line and the detection electrode line are all arranged above the common electrode, the common electrode circuit outputs a touch driving signal to the common electrode so that the corresponding sensing electrode can generate a coupling signal, and the control circuit drives the switch unit through the control electrode line so that the touch circuit can detect the coupling signal of the sensing electrode through the detection electrode line to obtain the touch state of the touch panel. Thus, the touch panel is arranged in the display panel, and the design of the touch circuit is simplified.
Description
Technical field
The utility model relates to a kind of liquid crystal indicator, refers to especially a kind of liquid crystal indicator of tool touch-control circuit.
Background technology
Along with scientific and technological flourish now, information product kind is weeded out the old and bring forth the new, and has met popular different demand.Due to liquid crystal indicator (Liquid Crystal Display, LCD) there is the advantages such as compact, low radiation dose and low power consumption, and conventional display device has large, the high power consumption of volume and high radiation dose, therefore, display device on the market will replace conventional display device by liquid crystal indicator gradually now, and also therefore liquid crystal indicator becomes the main flow in current display device market.Moreover, based on input media now, be partial to gradually the developing direction of instinct type input, thereby derive contact panel, with collocation display device, use, based on liquid crystal indicator lightening, allow the collocation of contact panel and liquid crystal indicator be the main flow of touch control display apparatus now again, such as: flat computer, intelligent mobile phone, ALL-IN-ONE computing machine etc.
More develop now a kind of touch control display apparatus, and the set-up mode of general touch control display apparatus is that a contact panel is set in display device, can touch area to allow contact panel provide according to the display frame of display device, for user, according to the touch object of picture disply, carry out touch control operation.Refer to Fig. 1, its structural representation that is known touch control display apparatus.As shown in the figure, known touch control display apparatus 10 is provided with a display panel 11 and a contact panel 12, and display panel 11 is provided with a multiple substrate 111, an array circuit 112, a liquid crystal layer 113, community electrode 114, a three primary colors layer 115 and a colored optical filtering substrates 116.Contact panel 12 is provided with a sensing array circuit 121 and a touch base plate 122.Wherein, array circuit 112 is arranged on multiple substrate 111, liquid crystal layer 113 is arranged on array circuit 112, common electrode 114 is arranged on liquid crystal layer 113, three primary colors layer 115 is arranged on common electrode 114, colored optical filtering substrates 116 is arranged on three primary colors layer 115, and sensing array circuit 121 is arranged on colored optical filtering substrates 116, and touch base plate 122 is arranged on sensing array circuit 121.That is to say, the direct superposition of contact panel 12 is arranged on display panel 11, thereby causes the integral thickness of touch control display apparatus 10 to increase.
In order to reduce the thickness of contact panel; changed before this touch control manner; namely from electric resistance touch-control, be modified to capacitance touching control; and the R&D direction majority of contact panel is revised as the thickness that reduces sensing array circuit now; namely from double-deck sensing array circuit modification to individual layer sensing array circuit; but contact panel still needs to arrange a touch base plate on sensing array circuit, to protect sensing array circuit.Known touch control display apparatus like this is for utilizing laminating processing procedure that contact panel and display panel are combined, and to form touch control display, and the setting of contact panel based on touch base plate, and fails effectively to reduce thickness.
In view of this, the utility model proposes a kind of liquid crystal indicator of tool touch-control circuit, it improves the thickness problem of known touch control display apparatus, can reduce again the setting of touch base plate, thereby further reduces thickness.
Utility model content
An object of the present utility model, is to provide a kind of liquid crystal indicator of tool touch-control circuit, and it provides contact panel to be arranged in display panel, thereby without touch base plate is set.
An object of the present utility model, is to provide a kind of liquid crystal indicator of tool touch-control circuit, and it directly utilizes common electrode to drive signal source as touch-control, and to order about sensing electrode, be coupled and produce touch-control sensing signal, thereby the design of simplification touch-control circuit.
The utility model is to provide a kind of liquid crystal indicator of tool touch-control circuit, it is characterized in that, it comprises a display panel.Display panel comprises a common electrode, a contact panel, has altogether with telegraph circuit, a touch-control circuit.Contact panel is arranged at the top of this common electrode and comprises a plurality of sensing electrodes, a plurality of switch element, a plurality of control electrode line, a plurality of detecting electrode line.A plurality of sensing electrodes are arranged at the top of this common electrode, and the plurality of sensing electrode is coupled according to this common electrode and produces at least one coupled signal; A plurality of switch elements, it is arranged at the top of this common electrode and corresponding to this common electrode, and couples the plurality of sensing electrode; A plurality of control electrode lines, it is arranged at the top of this common electrode, and couples the plurality of switch element; And a plurality of detecting electrode lines, it is arranged at the top of this common electrode, and couples the plurality of switch element.Common electrode circuit, it couples this common electrode, and exports a touch-control and drive signal to this common electrode, to order about the plurality of sensing electrode this common electrode that is coupled.Touch-control circuit couples this contact panel and comprises a control circuit and a signal deteching circuit.Control circuit couples the plurality of control electrode line, this control circuit produces a plurality of scanning signals and is sent to the plurality of switch element through the plurality of control electrode line, to drive the plurality of switch element conducting, and, signal deteching circuit, it couples a plurality of detecting electrode lines, and this signal deteching circuit is according to a threshold value and this coupled signal, to detect the touch-control state of the plurality of sensing electrode.
In addition, the utility model more provides a plurality of common electrodes.Contact panel is arranged at the top of the plurality of common electrode and comprises a plurality of sensing electrodes, a plurality of switch element, a plurality of control electrode line, a plurality of detecting electrode line.A plurality of sensing electrodes are arranged at the top of the plurality of common electrode, and the plurality of common electrode corresponds respectively to the plurality of sensing electrode of part, and the plurality of sensing electrode is coupled according to the plurality of common electrode and produces a plurality of coupled signals; A plurality of switch elements, it is arranged at the top of the plurality of common electrode, and the plurality of common electrode corresponds respectively to the plurality of switch element of part, and the plurality of switch element couples the plurality of sensing electrode; A plurality of control electrode lines, it is arranged at the top of the plurality of common electrode, and couples the plurality of switch element; And a plurality of detecting electrode lines, it is arranged at the top of the plurality of common electrode, and couples the plurality of switch element.Common electrode circuit couples the plurality of common electrode, and export a plurality of touch-controls driving signals to the plurality of common electrode, to order about the plurality of sensing electrode the plurality of common electrode that is coupled, and, signal deteching circuit couples a plurality of detecting electrode lines, the plurality of detecting electrode line couples the plurality of switch element, and this signal deteching circuit is according to a threshold value and the plurality of coupled signal, to detect the touch-control state of the plurality of sensing electrode.
Implement the beneficial effects of the utility model: the utility model provides contact panel to be arranged in display panel, thereby minimizing integral thickness, and the AC signal of exporting by common electrode circuit drives signal as touch-control, further simplify circuit design and reduce the usable floor area of touch-control circuit.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of known touch control display apparatus;
Fig. 2 is the part-structure sectional view of the liquid crystal indicator of an embodiment of the present utility model;
Fig. 3 is the circuit diagram of the liquid crystal indicator of an embodiment of the present utility model;
Fig. 4 is the local enlarged diagram of the liquid crystal indicator of Fig. 3 of the present utility model;
Fig. 5 A is the schematic diagram of the equivalent capacity of an embodiment of the present utility model;
Fig. 5 B is the oscillogram that the touch-control of an embodiment of the present utility model drives signal and touch control detection signal;
Fig. 6 is the part-structure sectional view of another embodiment of the present utility model;
Fig. 7 is the circuit diagram of another embodiment of the present utility model;
Fig. 8 is the local enlarged diagram of the liquid crystal indicator of Fig. 7 of the present utility model;
Fig. 9 is the circuit diagram of the display device of another embodiment of the present utility model; And
Figure 10 is the oscillogram that the touch-control of another embodiment of the present utility model drives signal and touch control detection signal.
[figure number is to as directed]
10 display device 222 signal deteching circuits
11 display panel 23 contact panels
111 multiple substrate 231 sensing electrodes
112 array circuit 232 switch elements
113 liquid crystal layer 233 control electrode lines
114 common electrode 234 detecting electrode lines
115 three primary colors layer 30 liquid crystal indicator
116 colored optical filtering substrates 31 display panels
12 contact panel 311 multiple substrates
121 sensing array circuit 312 array circuit
122 touch base plate 313 liquid crystal layers
20 liquid crystal indicator 314 common electrodes
21 show panel 315 colored optical filtering substrates
211 multiple substrate 316 three primary colors layers
212 array circuit 317 display circuits
213 liquid crystal layer 318 common electrode circuit
214 common electrode 32 touch-control circuits
215 colored optical filtering substrates 321 control circuits
216 three primary colors layer 322 signal deteching circuit
217 display circuit 33 contact panels
218 common electrode circuit 331 sensing electrodes
22 touch-control circuit 332 switch elements
221 control circuit 333 control electrode lines
334 detecting electrode line Ccom share electric capacity
40 showing device Ctouch touch control capacitances
414 common electrode D square frames
415 colored optical filtering substrates S
dETtouch control detection signal
417 show circuit Ttouch touch-control during
418 common electrode circuit V
cOMtouch-control drives signal
42 touch-control circuit V
cOM1touch-control drives signal
421 control circuit V
cOM2touch-control drives signal
422 signal deteching circuit V
cOMntouch-control drives signal
43 contact panel V
dETcoupled signal
431 sensing electrode V
dET1coupled signal
432 switch element V
dETncoupled signal
433 control electrode line Vg sweep signals
434 detecting electrode line Vg1 scanning signals
AA ' profile line Vg2 scans signal
B square frame Vgn scans signal
CC ' profile line Vth threshold value
Embodiment
For making that architectural feature of the present utility model and the effect reached are had a better understanding and awareness, in order to preferred embodiment and accompanying drawing, coordinate detailed explanation, be described as follows:
See also Fig. 2, Fig. 3 and Fig. 4, it is the enlarged diagram of part-structure sectional view, circuit diagram and Fig. 3 of the liquid crystal indicator of an embodiment of the present utility model.As shown in the figure, liquid crystal indicator 20 of the present utility model is for comprising a display panel 21, having altogether with telegraph circuit 218 and a touch-control circuit 22.Display panel 21 comprises a multiple substrate 211, an array circuit 212, a liquid crystal layer 213, a common electrode 214, a contact panel 23 and a colored optical filtering substrates 215, and display panel 21 more comprises a three primary colors layer 216.As shown in Figure 3, touch-control circuit 22 comprises a control circuit 221 and a signal deteching circuit 222.Contact panel 23 comprises a plurality of sensing electrodes 231, a plurality of switch element 232, a plurality of control electrode line 233 and a plurality of detecting electrode lines 234.Liquid crystal indicator 20 more comprises a display circuit 217.
Consult again Fig. 2 to Fig. 4, wherein Fig. 2 is the sectional view of the profile line AA ' shown in Fig. 4, and Fig. 4 is the regional area enlarged diagram of the contact panel 23 shown in Fig. 3, namely the enlarged diagram of the square frame B shown in Fig. 3.Array circuit 212 is arranged on multiple substrate 211, liquid crystal layer 213 is arranged on array circuit 212, common electrode 214 is arranged on liquid crystal layer 213, three primary colors layer 216 is arranged on common electrode 214, contact panel 23 is arranged on three primary colors layer 216, colored optical filtering substrates 215 is arranged on contact panel 23, and in other words, colored optical filtering substrates 215 is arranged on a plurality of sensing electrodes 231 of contact panel 23.As shown in Figure 3, the plurality of sensing electrode 231, the plurality of switch element 232, the plurality of control electrode line 233 are arranged on common electrode 214 with the plurality of detecting electrode line 234, in addition, the present embodiment is to take the array of sensing electrode 231 of 6X6 as for example, but the utility model is not limited to this, more can adjust according to the resolution of display panel 21.
Consult again Fig. 3, control circuit 221 is to be arranged on touch-control circuit 22 with signal deteching circuit 222, control circuit 221 is to couple the plurality of control electrode line 233, thereby coupling the plurality of switch element 232 on contact panel 23 through the plurality of control electrode line 233, control circuit 221 is to transmit a plurality of scanning signal V
g1v
gnto the plurality of control electrode line 233, thereby be sent to the plurality of switch element 232, to drive the plurality of switch element 232 conductings or cut-off; Signal deteching circuit 222 couples the plurality of detecting electrode line 234, thereby couples the plurality of switch element 232 through the plurality of detecting electrode line 234.The plurality of switch element 232 is that correspondence couples the plurality of sensing electrode 231 respectively, the plurality of sensing electrode 231 is arranged at the top of common electrode 214, for example: the position of the plurality of sensing electrode 231 arranges in scope in common electrode 214, thereby allow common electrode 214 corresponding to all sensing electrodes 231.Common electrode circuit 218 is arranged in display circuit 217, and common electrode circuit 218 couples common electrode 214, to export a touch-control, drives signal V
cOM1v
cOMnto common electrode 214.
Therefore by common electrode circuit 218, export the touch-control driving signal V of common electrode 214 to
cOM1v
cOMn, make the plurality of sensing electrode 231 drive signal V according to the touch-control of common electrode 214
cOM, and coupling produces at least one coupled signal V
dET1v
dETn, the present embodiment is to produce a plurality of coupled signal V with the plurality of sensing electrode 231
dET1v
dETn.Meanwhile, by control circuit 221, export the plurality of scanning signal V of the plurality of switch element 232 to
g1v
gn, and drive sequentially conduction and cut-off of each switch element 232 that each control electrode line 233 couples, the output coupled signal V to allow the plurality of sensing electrode 231 through corresponding switch element 232
dET1v
dETnto corresponding detecting electrode line 234, to be sent to signal deteching circuit 222, thereby form a successional touch control detection signal S
dET(as shown in Figure 5 B), in order to detect the touch-control state of the plurality of sensing electrode 231, wherein touch control detection signal S
dETeach amplitude for representing the touch-control state of each sensing electrode.In addition, touch-control circuit 22 is to couple display circuit 217, to allow control circuit 221 use together telegraph circuit 218 synchronous.
Consult in the lump Fig. 5 A and Fig. 5 B, owing to having one between each sensing electrode 231 and common electrode 214, share capacitor C com, and finger or other touch control object do not touch display device 20 before, sensing electrode 231 does not form a touch control capacitance Ctouch with any touch control object, so the plurality of coupled signal V that receives from the plurality of sensing electrode 231 of signal deteching circuit 222
dET1v
dETnfor regular signal, and because of touch-control driving signal V
cOMfor AC signal, the touch-control of the present embodiment drives signal V
cOMwith pulse wave, represent, so the touch control detection signal S of signal deteching circuit 222
dETfor regular AC signal.But when there being touch control object, as finger or pointer, while touching the contact panel 23 of display device 20, the sensing electrode 231 in the touch position of contact panel 23 can form touch control capacitance Ctouch with touch control object, thereby causes touch control detection signal S
dETamplitude irregular, the present embodiment is that a plurality of sensing electrodes 231 are subject to touch-control, so touch control detection signal S
dETa plurality of arteries and veins wave amplitudes irregular, and form Ttouch during a touch-control.In addition, cause the situation of signal deteching circuit 222 erroneous judgements for fear of false touch, signal deteching circuit 222 is the coupled signal V that receive according to a threshold value Vth comparison
dET1v
dETn, as shown in Figure 5 B, the threshold value Vth of the present embodiment is in order to compare touch control detection signal S
dETamplitude increase or reduce the current potential of 0.3V.So, as touch control detection signal S
dETat least one arteries and veins wave amplitude while surpassing threshold value Vth (± 0.3V), signal deteching circuit 222 is according to surpassing the amplitude of threshold value Vth (± 0.3V) and the plurality of scanning signal V of control circuit 221
g1v
gnand obtain the position of touch of the plurality of sensing electrode 231.
Refer to Fig. 6, Fig. 7 and Fig. 8, part-structure sectional view, circuit diagram and partial enlarged drawing that it is another embodiment of the present utility model.Wherein, Fig. 6 is the sectional view of the profile line CC ' shown in Fig. 8, Fig. 8 is the regional area enlarged diagram of the contact panel 33 shown in Fig. 7, the enlarged diagram of the square frame D shown in Fig. 7 namely, and the difference of Fig. 2 and Fig. 6 is that display device 20 its colored optical filtering substrates 215 of Fig. 2 are arranged at the top of contact panel 23, the display device 30 of Fig. 6 arranges a contact panel 33 in the top of colored optical filtering substrates 315, and namely colored optical filtering substrates 315 is arranged between the plurality of sensing electrode 331 (ginseng Fig. 7) of common electrode 314 and contact panel 33.As shown in the figure, liquid crystal indicator 30 of the present utility model is for comprising a display panel 31, having altogether with telegraph circuit 318 and a touch-control circuit 32.Display panel 31 comprises a multiple substrate 311, an array circuit 312, a liquid crystal layer 313, common electrode 314, contact panel 33 and colored optical filtering substrates 315, and display panel 31 more comprises a three primary colors layer 316.Wherein multiple substrate 311 to the annexation of common electrode 314 and three primary colors layer 316 is same as the multiple substrate 211 of last embodiment to the annexation of common electrode 214 and three primary colors layer 216, so the present embodiment repeats no more.Colored optical filtering substrates 315 is arranged on three primary colors layer 316, and contact panel 33 is arranged on colored optical filtering substrates 315.
As shown in Figure 7, contact panel 33 comprises a plurality of sensing electrodes 331, a plurality of switch element 332, a plurality of control electrode line 333 and a plurality of detecting electrode lines 334, and the plurality of sensing electrode 331, the plurality of switch element 332, the plurality of control electrode line 333 and the plurality of detecting electrode line 334 are arranged at the top of common electrode 314, and between contact panel 33 and common electrode 314, there is colored optical filtering substrates 315, thereby allow and form equivalent capacity between contact panel 33 and common electrode 314.And the control circuit 321 of the touch-control circuit 32 of the present embodiment is also coupled to switch element 332 via control electrode line 333 and detecting electrode line 334 respectively with signal deteching circuit 322, with the scanning signal V by control circuit 321
g1v
gndriving switch unit 332, and through switch element 332, receive coupled signal V by detecting electrode line 334
dET1v
dETn, to be sent to signal deteching circuit 322.The touch-control circuit 32 of the present embodiment, contact panel 33 and all the other function modes of display circuit 317 and the touch-control circuit 22 of last embodiment, contact panel 23 are identical with display circuit 217, so the present embodiment repeats no more.
Refer to Fig. 9, the circuit diagram of its display device that is another embodiment of the present utility model.Wherein Fig. 7 is that with the difference of Fig. 9 the display device 30 of Fig. 7 is with all sensing electrodes 331 and all corresponding switch elements 332 of the corresponding contact panel 33 of single common electrode 314, and the display device 40 of Fig. 9 is with all sensing electrodes 431 and switch element 432 of the corresponding contact panel 43 of a plurality of common electrodes 414, wherein, each common electrode 414 corresponding part sensing electrode 431 and part switch element 432, the plurality of common electrode 414 of the present embodiment is the sensing electrode 431 and switch element 432 of respectively corresponding each row, but the utility model is not limited to this, more can distinguish the sensing electrode 431 and switch element 432 of corresponding every a line.
As shown in Figure 9, display device 40 its contact panels 43 of the present utility model comprise the plurality of sensing electrode 431, the plurality of switch element 432, a plurality of control electrode line 433 and a plurality of detecting electrode lines 434, and the plurality of sensing electrode 431, the plurality of switch element 432, the plurality of control electrode line 433 are arranged at the top of common electrode 414 with the plurality of detecting electrode line 434, and have colored optical filtering substrates 415 between contact panel 43 and common electrode 414.The common electrode circuit of the present embodiment is to couple the plurality of common electrode 414, to export a plurality of touch-controls, drives signal V
cOM1v
cOMn, for allowing the plurality of sensing electrode 431 sequentially be coupled out respectively coupled signal V
dET, and a plurality of sweep signal V of control circuit 421 output that arrange in pairs or groups
g1v
gnto the plurality of switch element 432, to drive the plurality of switch element 432 conductings respectively, and allow signal deteching circuit 422 after testing electrode wires 434 receive coupled signal V
dET1v
dETn.
See also Fig. 9, Figure 10, common electrode circuit 418 is exported respectively a pulse wave to the plurality of common electrode 414 according to sequential, and it was an interchange pulse wave originally, cuts apart touch-control drive signal V by common electrode circuit 418 according to sequential
cOMfor a plurality of pulse waves, to export the plurality of common electrode 414 to.Because touch-control circuit 42 couples display circuit 417, thereby allow control circuit 421 use together telegraph circuit 418 synchronous, so control circuit 421 is also exported corresponding pulse wave as sweep signal V according to identical sequential
g1v
gn, corresponding coupled signal V like this
dET1v
dETnafter signal deteching circuit 422 receives, can form a continuity and exchange pulse wave, be touch control detection signal S
dET.Signal deteching circuit 422 is same as the detection mode of the signal deteching circuit 322 of last embodiment according to the touch-control state of touch control detection signal acquisition sensing electrode 431, so the present embodiment repeats no more.
Above-described common electrode circuit, for being arranged in display device, be particularly arranged in display panel, but the utility model is not limited to this, more can be arranged at the external circuit of display panel.In addition, from the above, because contact panel of the present utility model is to be arranged in display panel, namely in the processing procedure of display panel, add the processing procedure of contact panel, thereby allow display panel and contact panel combine, so contact panel of the present utility model need not arrange touch base plate again, significantly reduce by this integral thickness, and utilize the interchange pulse wave of common electrode circuit output to drive signal as touch-control simultaneously, so the utility model must not arrange touch-control driving circuit in addition, in order to provide touch-control to drive signal, so, the utility model more can further reduce touch-control driving circuit is set, and further simplify circuit design and reduce circuit usable floor area.
In sum, the utility model is a kind of liquid crystal indicator of tool touch-control circuit, it provides contact panel to be arranged in display panel, thereby minimizing integral thickness, and the AC signal of exporting by common electrode circuit drives signal as touch-control, further simplify circuit design and reduce the usable floor area of touch-control circuit.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (12)
1. a liquid crystal indicator for tool touch-control circuit, is characterized in that, it comprises:
One display panel, it comprises:
One common electrode;
One contact panel, it is arranged at the top of this common electrode, and this contact panel comprises:
A plurality of sensing electrodes, it is arranged at the top of this common electrode, and the plurality of sensing electrode is coupled according to this common electrode and produces at least one coupled signal;
A plurality of switch elements, it is arranged at the top of this common electrode and corresponding to this common electrode, and couples the plurality of sensing electrode;
A plurality of control electrode lines, it is arranged at the top of this common electrode, and couples the plurality of switch element;
And
A plurality of detecting electrode lines, it is arranged at the top of this common electrode, and couples the plurality of switch element;
Altogether, with telegraph circuit, it couples this common electrode, and exports a touch-control and drive signal to this common electrode, to order about the plurality of sensing electrode this common electrode that is coupled; And
One touch-control circuit, it couples this contact panel, and this touch-control circuit comprises:
One control circuit, it couples the plurality of control electrode line, and this control circuit produces a plurality of scanning signals and is sent to the plurality of switch element through the plurality of control electrode line, to drive the plurality of switch element conducting; And
One signal deteching circuit, it couples a plurality of detecting electrode lines, and this signal deteching circuit is according to a threshold value and this coupled signal, to detect the touch-control state of the plurality of sensing electrode.
2. liquid crystal indicator as claimed in claim 1, it is characterized in that, wherein this signal deteching circuit is according to this threshold value this coupled signal relatively, when at least one amplitude of this coupled signal surpasses this threshold value, this signal deteching circuit obtains the position of touch of the plurality of sensing electrode according to surpassing this amplitude of this threshold value and the plurality of scanning signal of this control circuit.
3. liquid crystal indicator as claimed in claim 1, is characterized in that, more comprises:
One colored optical filtering substrates, it is arranged between this common electrode and the plurality of sensing electrode.
4. liquid crystal indicator as claimed in claim 1, is characterized in that, more comprises:
One colored optical filtering substrates, it is arranged on the plurality of sensing electrode.
5. liquid crystal indicator as claimed in claim 1, is characterized in that, wherein this common electrode circuit is arranged on a display circuit, and this touch-control circuit is coupled to this display circuit.
6. a liquid crystal indicator for tool touch-control circuit, is characterized in that, it comprises:
One display panel, it comprises:
A plurality of common electrodes;
One contact panel, it is arranged at the top of the plurality of common electrode, and this contact panel comprises:
A plurality of sensing electrodes, it is arranged at the top of the plurality of common electrode, and the plurality of common electrode corresponds respectively to the plurality of sensing electrode of part, and the plurality of sensing electrode is coupled according to the plurality of common electrode and produces a plurality of coupled signals;
A plurality of switch elements, it is arranged at the top of the plurality of common electrode, and the plurality of common electrode corresponds respectively to the plurality of switch element of part, and the plurality of switch element couples the plurality of sensing electrode;
A plurality of control electrode lines, it is arranged at the top of the plurality of common electrode, and couples the plurality of switch element; And
A plurality of detecting electrode lines, it is arranged at the top of the plurality of common electrode, and couples the plurality of switch element;
Altogether, with telegraph circuit, it couples the plurality of common electrode, and exports a plurality of touch-controls and drive signals to the plurality of common electrode, to order about the plurality of sensing electrode the plurality of common electrode that is coupled; And
One touch-control circuit, it couples this contact panel, and this touch-control circuit comprises:
One control circuit, it couples the plurality of control electrode line, and this control circuit produces a plurality of scanning signals and is sent to the plurality of switch element through the plurality of control electrode line, to drive the plurality of switch element conducting; And
One signal deteching circuit, it couples a plurality of detecting electrode lines, and the plurality of detecting electrode line couples the plurality of switch element, and this signal deteching circuit is according to a threshold value and the plurality of coupled signal, to detect the touch-control state of the plurality of sensing electrode.
7. liquid crystal indicator as claimed in claim 6, is characterized in that, wherein to correspond respectively to the plurality of sensing electrode of part be the plurality of sensing electrode that the plurality of common electrode corresponds respectively to each row to the plurality of common electrode.
8. liquid crystal indicator as claimed in claim 6, is characterized in that, wherein to correspond respectively to the plurality of sensing electrode of part be the plurality of sensing electrode that the plurality of common electrode corresponds respectively to every a line to the plurality of common electrode.
9. liquid crystal indicator as claimed in claim 6, it is characterized in that, wherein this signal deteching circuit is according to this threshold value this coupled signal relatively, when the plurality of coupled signal surpasses this threshold value, this signal deteching circuit obtains the position of touch of the plurality of sensing electrode according to surpassing the plurality of coupled signal of this threshold value.
10. liquid crystal indicator as claimed in claim 6, is characterized in that, more comprises:
One colored optical filtering substrates, it is arranged between the plurality of common electrode and the plurality of sensing electrode.
11. liquid crystal indicators as claimed in claim 6, is characterized in that, more comprise:
One colored optical filtering substrates, it is arranged on the plurality of sensing electrode.
12. liquid crystal indicators as claimed in claim 6, is characterized in that, wherein this common electrode circuit is arranged on a display circuit, and this touch-control circuit is coupled to this display circuit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101219726 | 2012-10-12 | ||
| TW101219726U TWM449306U (en) | 2012-10-12 | 2012-10-12 | Liquid crystal display device with touch control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203405787U true CN203405787U (en) | 2014-01-22 |
Family
ID=48472757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320354743.XU Expired - Fee Related CN203405787U (en) | 2012-10-12 | 2013-06-17 | Liquid crystal display device with touch control circuit |
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| Country | Link |
|---|---|
| CN (1) | CN203405787U (en) |
| TW (1) | TWM449306U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044940A (en) * | 2015-07-29 | 2015-11-11 | 合肥京东方光电科技有限公司 | Panel and testing method of same |
| CN106155390A (en) * | 2015-04-14 | 2016-11-23 | 南昌欧菲光学技术有限公司 | Contact panel with solar cell |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI489363B (en) * | 2013-04-10 | 2015-06-21 | Orise Technology Co Ltd | Method and apparatus for reducing display interference in in-cell touch panel |
-
2012
- 2012-10-12 TW TW101219726U patent/TWM449306U/en not_active IP Right Cessation
-
2013
- 2013-06-17 CN CN201320354743.XU patent/CN203405787U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106155390A (en) * | 2015-04-14 | 2016-11-23 | 南昌欧菲光学技术有限公司 | Contact panel with solar cell |
| CN105044940A (en) * | 2015-07-29 | 2015-11-11 | 合肥京东方光电科技有限公司 | Panel and testing method of same |
| CN105044940B (en) * | 2015-07-29 | 2019-01-22 | 合肥京东方光电科技有限公司 | A kind of panel and its test method |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM449306U (en) | 2013-03-21 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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