CN102169380A - Touch sensing method and device and touch display device - Google Patents
Touch sensing method and device and touch display device Download PDFInfo
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- CN102169380A CN102169380A CN2010101227226A CN201010122722A CN102169380A CN 102169380 A CN102169380 A CN 102169380A CN 2010101227226 A CN2010101227226 A CN 2010101227226A CN 201010122722 A CN201010122722 A CN 201010122722A CN 102169380 A CN102169380 A CN 102169380A
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Abstract
The invention relates to a touch sensing method and device and a touch display device, which are used for sensing a touch event in a planar display. The touch sensing method comprises the steps of: when receiving a grid electrode driving signal by one of a plurality of grid electrode lines, sequentially sensing waveforms of a plurality of source electrode lines when receiving a plurality of source electrode driving signals so as to generate a plurality of sensing results; and judging the state of the touch event according to the plurality of sensing results and a position of the grid electrode line relative to the plurality of grid electrode lines.
Description
Technical field
The present invention is meant a kind of touch detection method, touch detection device and touch control display apparatus, refers to a kind of touch detection method of simplifying panel circuit and promoting display quality, touch detection device and touch control display apparatus especially.
Background technology
That touch control display apparatus has is easy to operate, reaction velocity reaches the advantage of saving the space soon, the user can be provided more intuition and control mode easily, thereby become important input interface, and be widely used in the various consumption electronic products for example personal digital assistant, intelligent mobile communication device, mobile computer and sale management system electronic products such as (POS).Particularly, touch control display apparatus is made up of a display and a transparent touch plate, in more detail, is the transparent touch plate to be fitted on (liquid crystal or cold-cathode tube) display, to realize touch-control and Presentation Function simultaneously.
Touch control display apparatus mainly can be divided into resistance-type, condenser type, optical profile type etc. according to the difference of its detection technology, and its operation principles is all industry and knows.Yet, no matter be the touch control display apparatus of resistance-type, condenser type or optical profile type, be all the simple combination of a display device and a transparent touch plate.For instance, please refer to Figure 1A and 1B, Figure 1A is the synoptic diagram of a known touch control display apparatus 10, and Figure 1B is that touch control display apparatus 10 is along some A to A " sectional view.Touch control display apparatus 10 is made up of a display panels 100 and a transparent touch plate 102, and 102 of display panels 100 and transparent touch plates then are fixed together with gummed or similar mode.In other words, known touch control display apparatus 10 only is merely will be in conjunction with display panels 100 and transparent touch plate 102, to realize demonstration and touch controllable function simultaneously.This combination not only is helpless to integrate the hardware structure of display panels 100 and transparent touch plate 102, also can cause integral thickness to increase, and improved necessity is arranged in fact.
Summary of the invention
The present invention discloses a kind of touch detection method, be used for flat-panel screens detecting touch-control incident, this flat-panel screens includes a plurality of source electrode lines, and a plurality of gate lines vertical with these a plurality of source electrode lines, this touch detection method includes when a gate line of these a plurality of gate lines receives a gate drive signal, waveform when detecting these a plurality of source electrode lines in regular turn and receiving a plurality of source electrode drive signal is to produce a plurality of detecting results; And, judge the state of a touch-control incident according to these a plurality of detecting results and this gate line position compared to these a plurality of gate lines.
The present invention discloses a kind of touch detection device in addition, be used for flat-panel screens detecting touch-control incident, this flat-panel screens includes a plurality of source electrode lines, and a plurality of gate lines vertical with these a plurality of source electrode lines, this touch detection device includes a detecting unit, be used for when a gate line of these a plurality of gate lines receives a gate drive signal, the waveform when detecting these a plurality of source electrode lines in regular turn and receiving a plurality of source electrode drive signal is to produce a plurality of detecting results; And a judge module, be used for judging the state of a touch-control incident according to these a plurality of detecting results and this gate line position compared to these a plurality of gate lines.
The present invention discloses a kind of flat display apparatus in addition, have and show and touch controllable function, include a display panel, include a plurality of picture elements unit, a plurality of source electrode lines and a plurality of gate lines vertical with these a plurality of source electrode lines, each picture element unit is formed at the intersection of an one source pole line and a gate line; One image driver module is used for according to an image data, exports a plurality of source electrode drive signals to these a plurality of source electrode lines, and a plurality of gate drive signals of output are to these a plurality of gate lines, to drive this a plurality of picture elements unit show image content; And a kind of touch detection device, include a detecting unit, be used for when a gate line of these a plurality of gate lines receives a gate drive signal, the waveform when detecting these a plurality of source electrode lines in regular turn and receiving this a plurality of source electrode drive signal is to produce a plurality of detecting results; And a judge module, be used for judging the state of a touch-control incident according to these a plurality of detecting results and this gate line position compared to these a plurality of gate lines.
Therefore, fundamental purpose of the present invention is to provide a kind of touch detection method, touch detection device and touch control display apparatus.The present invention is by the waveform of detecting source drive signal, and the sequential of cooperation gate drive signal, judges whether the location and time that the touch-control incident takes place or the touch-control incident takes place.Therefore, the present invention need not be installed the transparent touch plate additional on flat-panel screens, really reaches the purpose of simplifying panel circuit, increasing aperture opening ratio (Aperture Ratio), promote display quality and reduce cost.
Description of drawings
Figure 1A is the synoptic diagram of a known touch control display apparatus.
Figure 1B is the sectional view of the touch control display apparatus of Figure 1A.
Fig. 2 A is the synoptic diagram of the embodiment of the invention one touch control display apparatus.
Fig. 2 B is the sectional view of the touch control display apparatus of Fig. 2 A.
Fig. 2 C is the functional block diagram of the touch control display apparatus of Fig. 2 A.
Fig. 3 A and Fig. 3 B are the synoptic diagram of an image driver module among Fig. 2 A.
Fig. 4 is the coherent signal synoptic diagram of a detecting unit among Fig. 2 A.
Fig. 5 is the synoptic diagram of a detecting unit among Fig. 2 A.
Fig. 6 is the comparative result synoptic diagram of a comparing unit among Fig. 2 A.
Fig. 7 is the synoptic diagram of the embodiment of the invention one touch detection flow process.
Wherein, description of reference numerals is as follows:
10 touch control display apparatus
A, A ' point
100 display panels
102 transparent touch plates
20 touch control display apparatus
B, B ' point
200 display panels
202 image driver modules
204 touch detection devices
206 detecting units
208 judge modules
LS_1～LS_n source electrode line
LG_1～LG_m gate line
The Q thin film transistor (TFT)
The C equivalent capacity
210 comparing units
212 logical blocks
RS_1～RS_n detects the result
DS_1～DS_n source drive signal
IFC1, IFC2 interface
The DG_y gate drive signal
SH_1～SH_n sampling and holding circuit
ADD_1～ADD_n totalizer
AMP_1～AMP_n amplifier
The Δ t time
T0, T1, T2, T3 time point
The TH threshold value
70 touch detection flow processs
700,702,704,706,708 steps
Embodiment
Please refer to Fig. 2 A to Fig. 2 C, Fig. 2 A is the synoptic diagram of the embodiment of the invention one touch control display apparatus 20, and Fig. 2 B is the sectional view of touch control display apparatus 20 along some B to B ', and Fig. 2 C is the functional block diagram of touch control display apparatus 20.By Fig. 2 A and Fig. 2 B as can be known, touch control display apparatus 20 is by a display panels 200, reaches simultaneously to show and touch controllable function.In other words, do not need the extra transparent touch plate 102 that increases as shown in Figure 1 in the touch control display apparatus 20, can reach the purpose of detecting touch-control incident.
Specifically, shown in Fig. 2 C, display panels 200 is to be made of two substrates (Substrate), be filled with liquid crystal material (Liquid Crystal) between two substrates, a substrate wherein is provided with source electrode line LS_1～LS_n, gate line LG_1～LG_m and a plurality of thin film transistor (TFT) Q, and another substrate is provided with a shared electrode (Common Electrode).The framework of display panels 200 is that industry is known, and non-emphasis of the present invention, so for the sake of clarity, only describes it with source electrode line LS_b and LS_ (b+1), gate line LG_a and LG (a+1) and four thin film transistor (TFT) Q among Fig. 2 C.In addition, the circuit characteristic that two substrates constituted of display panels 200 can be considered an equivalent capacitor C.Except display panels 200, touch control display apparatus 20 includes an image driver module 202 and a touch detection device 204 in addition.Image driver module 202 is according to image data to be shown, DS_1～DS_n is to source electrode line LS_1～LS_n for output source electrode drive signal, and output gate drive signal DG_1～DG_m is to gate line LG_1～LG_m, with the conducting of control TFT Q and the potential difference (PD) at corresponding equivalent capacity C two ends, and then the arrangement and the corresponding light penetration amount of change liquid crystal molecule, reach GTG (Gray Level) state of the corresponding picture element of control, thereby video data is shown on the panel.
Be noted that, image driver module 202 is general names that the expression assembly that is used for controlling display panels 200 show image contents in the touch control display apparatus 20, circuit, firmware etc. are formed important document, in fact, image driver module 202 may include time schedule controller, gate driver circuit, source electrode drive circuit, share voltage generator etc., only for for purpose of brevity, thereby, represent it with the simple function square not influencing under the inventive concept.In like manner, the interface IFC1 that image driver module 202 and display panels are 200 represents that between the two all are tangible or invisible online, and detailed content may be not limited thereto in response to scope or system's implementation and different.
In order not increase under the transparent touch plate, reach and show and touch controllable function, touch control display apparatus 20 is by touch detection device 204, the boot sequence of each gate line in the fluid,matching LCD panel 200, the electric variation that utilizes display panels 200 original source electrode line LS_1～LS_n sensing user finger or article touching to be caused, and then judge that whether the touch-control incident takes place.Specifically, shown in Fig. 2 C, touch detection device 204 includes a detecting unit 206 and a judge module 208.Detecting unit 206 is used for when the gate line LG_y of gate line LG_1～LG_m receives a gate drive signal DG_y, detecting image driver module 202 exports the waveform of source drive signal DS_1～DS_n of source electrode line LS_1～LS_n in regular turn, detect RS_1～RS_n as a result to produce, and to the judge module 208 of exporting.Judge module 208 includes a comparing unit 210 and a logical block 212.The gap of the waveform when comparing unit 210 can relatively be detected RS_1～RS_n as a result (being the waveform of source electrode line LS_1～LS_n when receiving the source drive signal) and image driver module 202 in regular turn and produces source drive signal DS_1～DS_n, logical block 212 is then according to the comparative result of comparing unit 210, judge whether that the touch-control incident takes place, or the state of the touch-control incident that has taken place.In other words, when image driver module 202 was opened (startup) gate line LG_y, whether touch detection device 204 can be subjected to the touch-control events affecting by the waveform that interface IFC2 detects source drive signal LS_1～LS_n that source electrode line LS_1～LS_n exported in regular turn.If there is the waveform of the source drive signal DS_x that one source pole line LS_x exported to be subjected to the touch-control events affecting, near the intersection of expression gate line LG_y and source electrode line LS_x (or) has the generation of touch-control incident.The rest may be inferred, be example with (Progressive) line by line scanning, and when image driver module 202 driving display panels 200 had shown a picture, touch detection device 204 can be finished once complete detecting (promptly finishing the detecting of every bit); If with staggered (Interlaced) scanning is example, when image driver module 202 driving display panels 200 had shown two pictures, touch detection device 204 can be finished once complete detecting.
Be noted that, above-mentioned function mode is (when image driver module 202 is opened gate line LG_y, touch detection device 204 starts the waveform of detecting source drive signal DS_1～DS_n) be to be used for illustrating notion of the present invention, actual implementation can be according to different system demand or design and different.For instance, generally speaking the gate driver circuit of image driver module 202 has two big design directions.A kind of be gate driver circuit be coupled to each gate line (LG_1～LG_m), and control output opportunity of each gate drive signal by time schedule controller, as shown in Figure 3A.Another kind is that gate driver circuit only is coupled to the most last gate line (LG_1), and is coupled with a delay cell between the adjacent gate polar curve, is used for being sent to next gate line with after the suitable delay of gate drive signal.Yet, no matter adopt which kind of gate driving mode (Fig. 3 A, Fig. 3 B or other), for correct display frame, the time that time schedule controller all has enough information representation gate line LG_1～LG_m to receive gate drive signal DG_1～DG_m.Whereby, judge module 208 can be judged the state of touch-control incident according to this.That is to say, when realizing touch detection device 204, detecting unit 206 can start (promptly receiving gate drive signal) relevant sequential with gate line LG_1～LG_m according to a certain, and constantly detecting in regular turn exports the waveform of the source drive signal of source electrode line LS_1～LS_n to.When a detecting result of detecting unit 206 showed that certain one source pole is online and has touch-control to take place, judge module 208 can be detected result's time according to this, why judges corresponding gate line, and then confirms the touch-control occurrence positions.
Therefore, at arbitrary source electrode line among source electrode line LS_1～LS_n, when 202 employings of image driver module were listed as reverse or single-point reverse drive mode, the detecting result of detecting unit 206 can represent by Fig. 4.In Fig. 4, when solid line represents not have the touch-control generation, the waveform of source drive signal; When dotted line represents to have touch-control to take place, the waveform of source drive signal.In addition, for the sake of clarity, Fig. 4 illustrates the detecting result of detecting unit 206 with the waveform under the same gray level.Therefore, as shown in Figure 4, when touch-control took place, the waveform of source drive signal can be influenced and different.In addition, because under the different GTGs, the amplitude of source drive signal also can be different, for more whether the touch-control incident is correctly arranged take place, the waveform that comparing unit 210 is detected detecting unit 206 compares with the signal waveform that gate driver circuit is exported.For realizing this running, can realize detecting unit 206 with sampling with holding circuit SH_1～SH_n, and realize comparing unit 210 as shown in Figure 5 with totalizer ADD_1～ADD_n.
In Fig. 5, source drive signal DS_1～DS_n that image driver module 202 is exported can amplification via amplifier AMP_1～AMP_n after, export source electrode line LS_1～LS_n to.Therefore, can be by sampling and holding circuit SH_1～SH_n, the source drive signal DS_1～DS_n that handles without amplifier AMP_1～AMP_n is taken a sample and temporary sampling result, then, the sampling result of sampling with holding circuit SH_1～SH_n subtracted each other with the source drive signal DS_1～DS_n that exports source electrode line LS_1～LS_n to by totalizer ADD_1～ADD_n.In this case, logical block 212 can be according to the subtraction result of totalizer ADD_1～ADD_n, and the measures of dispersion that judges whether the one source pole drive signal is greater than default value, and then has judged whether that the touch-control incident takes place.
From the above, touch control display apparatus 20 reaches demonstration and the touch controllable function except can not increasing the transparent touch plate, 204 in touch detection device needs the waveform of detecting source drive signal DS_1～DS_n, the time that cooperates gate line LG_1～LG_m to receive gate drive signal DG_1～DG_m, can know the position of touch point on the two-dimensional coordinate.Be noted that the various variations that all notions are according to this reached all need belong to category of the present invention, are not limited to aforesaid example.For instance, the purpose of detecting unit 206 is in time to detect the waveform of each gate drive signal, therefore also can only carry out the detecting of a gate drive signal in special time Δ t, be example with Fig. 4, i.e. (T0+ Δ t), (T1+ Δ t), (T2+ Δ t) ...Moreover detecting unit 206 starts the foundation of detecting so long as relevant the getting final product of time of receiving gate drive signal DG_1～DG_m with gate line LG_1～LG_m is not limited to aforementioned.For example, if gate line LG_1, LG_m are arranged at the non-display area in the display panels 200, then detecting unit 206 can be designed to receive that in gate line LG_1 the special time behind the gate drive signal DG_1 begins, and when gate line LG_m receives gate drive signal DG_m, finish.In addition, can increase erroneous judgement detecting mechanism, for example when the same time has comparative result above a predetermined number all greater than a default value, logical block 212 generation that can get the wrong sow by the ear.
On the other hand, when finger rested on that certain one source pole is online among source electrode line LS_1～LS_n, though can cause the electrical specification of this source electrode line to change, it is little that this change amplitude changes amplitude far beyond the electrical specification of equivalent capacitor C on the touch point.Therefore, if observe different wave shape amount (being the comparative result of comparing unit 210), when the gate line of touch point correspondence was opened, the different wave shape amount just had significant increase.For instance, Fig. 6 shows under continuous time, corresponding to the different wave shape amount (being the comparative result of comparing unit 210) of arbitrary source electrode line LS_x with digital form.As shown in Figure 6, between time point T2 and T3, the different wave shape amount surpasses a threshold value TH, and therefore can judge has the touch-control incident to take place between LG (y+2) and source electrode line LS_x.In addition, further, can observe, can slowly change near near the different wave shape amount of (put in real time T2 and T3) touch point by Fig. 6.Whereby, can judge whether that erroneous judgement takes place; For example, if there is a different wave shape amount to surpass threshold value TH, but near the different wave shape amount rank it are uninfluenced, and then this different wave shape amount may be erroneous judgement.
As previously mentioned, known touch control display apparatus only is merely will be in conjunction with display panels and transparent touch plate, and this kind combination not only is helpless to integrate hardware structure, also can cause integral thickness to increase.In comparison, the boot sequence of each gate line in the fluid,matching LCD panel of the present invention, the electric variation that utilizes the original source electrode line detecting of display panels user's finger or article touching to be caused, and then judge that whether a touch-control incident takes place.
Further, the running of aforementioned touch detection device 204 can reduce a touch detection flow process 70, as shown in Figure 7.Touch detection flow process 70 comprises following steps:
Step 700: beginning.
Step 702: when detecting unit 206 receives a gate drive signal DG_y in the gate line LG_y of gate line LG_1～LG_m, waveform when detecting source electrode line LS_1～LS_n in regular turn and receiving source drive signal DS_1～DS_n is to produce detecting RS_1～RS_n as a result.
Step 704: comparing unit 210 is relatively detected the gap of the waveform when RS_1～RS_n and source drive signal DS_1～DS_n produces as a result in regular turn, to produce comparative result.
Step 706: logical block 212 is according to the comparative result of comparing unit 210, with the position of gate line LG_y compared to gate line LG_1～LG_m, judge the state of touch-control incident.
Step 708: finish.
Touch detection flow process 70 is in order to the running of explanation touch detection device 204, and detailed description can not given unnecessary details at this with reference to aforementioned.
In sum, the present invention is by the waveform of detecting source drive signal, and the sequential of cooperation gate drive signal, judges whether the location and time that the touch-control incident takes place or the touch-control incident takes place.Therefore, the present invention need not be installed the transparent touch plate additional on flat-panel screens, really reaches the purpose of simplifying panel circuit, increasing aperture opening ratio (Aperture Ratio), promote display quality and reduce cost.
The above only is the preferred embodiments of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (15)
1. a touch detection method is used for flat-panel screens detecting touch-control incident, and this flat-panel screens includes a plurality of source electrode lines, and a plurality of gate lines vertical with these a plurality of source electrode lines, it is characterized in that this touch detection method includes:
When a gate line of these a plurality of gate lines received a gate drive signal, the waveform when detecting these a plurality of source electrode lines in regular turn and receiving a plurality of source electrode drive signal was to produce a plurality of detecting results; And
According to these a plurality of detecting results and this gate line position, judge the state of a touch-control incident compared to these a plurality of gate lines.
2. touch detection method as claimed in claim 1 is characterized in that, according to these a plurality of detecting results and this gate line position compared to these a plurality of gate lines, judges the step of the state of this touch-control incident, includes:
The gap of the waveform when relatively these a plurality of detecting results produce with these a plurality of source electrode drive signals in regular turn is to produce a plurality of comparative results; And
According to these a plurality of comparative results, judge the state of this touch-control incident.
3. touch detection method as claimed in claim 2, it is characterized in that, according to these a plurality of comparative results, judge the step of the state of this touch-control incident, be a comparative result in these a plurality of comparative results during greater than a default value, judging on the intersection point of the pairing one source pole line of this comparative result and this gate line has a touch-control behavior to take place.
4. touch detection method as claimed in claim 2 is characterized in that, according to these a plurality of comparative results, judges the step of the state of this touch-control incident, is in these a plurality of comparative results during all less than a default value, and judging that this grid is online does not have the touch-control behavior to take place.
5. touch detection method as claimed in claim 2, it is characterized in that,, judge the step of the state of this touch-control incident according to these a plurality of comparative results, be the comparative result during all greater than a default value that surpasses a predetermined number in these a plurality of comparative results, generation gets the wrong sow by the ear.
6. a touch detection device is used for flat-panel screens detecting touch-control incident, and this flat-panel screens includes a plurality of source electrode lines, and a plurality of gate lines vertical with these a plurality of source electrode lines, it is characterized in that this touch detection device includes:
One detecting unit is used for when a gate line of these a plurality of gate lines receives a gate drive signal, and the waveform when detecting these a plurality of source electrode lines in regular turn and receiving a plurality of source electrode drive signal is to produce a plurality of detecting results; And
One judge module is used for judging the state of a touch-control incident according to these a plurality of detecting results and this gate line position compared to these a plurality of gate lines.
7. touch detection device as claimed in claim 6 is characterized in that, this judge module includes:
One comparing unit, be used in regular turn these a plurality of detecting results relatively with should be a plurality of the gap of waveform during the generation of source electrode drive signals, to produce a plurality of comparative results; And
One logical block is used for judging the state of this touch-control incident according to these a plurality of comparative results.
8. touch detection device as claimed in claim 7, it is characterized in that, this logical block is in a comparative result of these a plurality of comparative results during greater than a default value, and judging on the intersection point of the pairing one source pole line of this comparative result and this gate line has a touch-control behavior to take place.
9. touch detection device as claimed in claim 7 is characterized in that, this logical block is in these a plurality of comparative results during all less than a default value, and judging that this grid is online does not have the touch-control behavior to take place.
10. touch detection device as claimed in claim 7 is characterized in that, this logical block surpasses a predetermined number in these a plurality of comparative results comparative result is during all greater than a default value, and generation gets the wrong sow by the ear.
11. a flat display apparatus has demonstration and touch controllable function, it is characterized in that, includes:
One display panel includes a plurality of picture elements unit, a plurality of source electrode lines and a plurality of gate lines vertical with these a plurality of source electrode lines, and each picture element unit is formed at the intersection of an one source pole line and a gate line;
One image driver module is used for according to an image data, exports a plurality of source electrode drive signals to these a plurality of source electrode lines, and a plurality of gate drive signals of output are to these a plurality of gate lines, to drive this a plurality of picture elements unit show image content; And
A kind of touch detection device includes:
One detecting unit is used for when a gate line of these a plurality of gate lines receives a gate drive signal, and the waveform when detecting these a plurality of source electrode lines in regular turn and receiving this a plurality of source electrode drive signal is to produce a plurality of detecting results; And
One judge module is used for judging the state of a touch-control incident according to these a plurality of detecting results and this gate line position compared to these a plurality of gate lines.
12. flat display apparatus as claimed in claim 11 is characterized in that, this judge module includes:
One comparing unit, be used in regular turn these a plurality of detecting results relatively with should be a plurality of the gap of waveform during the generation of source electrode drive signals, to produce a plurality of comparative results; And
One logical block is used for judging the state of this touch-control incident according to these a plurality of comparative results.
13. flat display apparatus as claimed in claim 12, it is characterized in that, this logical block is in a comparative result of these a plurality of comparative results during greater than a default value, and judging on the intersection point of the pairing one source pole line of this comparative result and this gate line has a touch-control behavior to take place.
14. flat display apparatus as claimed in claim 12 is characterized in that, this logical block is in these a plurality of comparative results during all less than a default value, and judging that this grid is online does not have the touch-control behavior to take place.
15. flat display apparatus as claimed in claim 12 is characterized in that, this logical block surpasses a predetermined number in these a plurality of comparative results comparative result is during all greater than a default value, and generation gets the wrong sow by the ear.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101227226A CN102169380A (en) | 2010-02-26 | 2010-02-26 | Touch sensing method and device and touch display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101227226A CN102169380A (en) | 2010-02-26 | 2010-02-26 | Touch sensing method and device and touch display device |
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| CN102169380A true CN102169380A (en) | 2011-08-31 |
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| CN2010101227226A Pending CN102169380A (en) | 2010-02-26 | 2010-02-26 | Touch sensing method and device and touch display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108509074A (en) * | 2017-02-23 | 2018-09-07 | 矽创电子股份有限公司 | Touch panel and its touch detection circuit |
| CN109189273A (en) * | 2018-11-06 | 2019-01-11 | 业成科技（成都）有限公司 | Touch event processing method, device, computer equipment and storage medium |
| US11810394B2 (en) | 2017-02-23 | 2023-11-07 | Sitronix Technology Corp. | Fingerprint identification panel and fingerprint identification circuit thereof |
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| CN101131618A (en) * | 2006-08-20 | 2008-02-27 | 陈其良 | Pixel-multiplexing touch control type flat panel display |
| US20090115741A1 (en) * | 2007-11-06 | 2009-05-07 | Wintek Corporation | Touch sensor and touch screen panel |
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| CN101131618A (en) * | 2006-08-20 | 2008-02-27 | 陈其良 | Pixel-multiplexing touch control type flat panel display |
| US20090115741A1 (en) * | 2007-11-06 | 2009-05-07 | Wintek Corporation | Touch sensor and touch screen panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108509074A (en) * | 2017-02-23 | 2018-09-07 | 矽创电子股份有限公司 | Touch panel and its touch detection circuit |
| CN108509074B (en) * | 2017-02-23 | 2022-04-01 | 矽创电子股份有限公司 | Touch panel and touch detection circuit thereof |
| US11810394B2 (en) | 2017-02-23 | 2023-11-07 | Sitronix Technology Corp. | Fingerprint identification panel and fingerprint identification circuit thereof |
| US11847280B2 (en) | 2017-02-23 | 2023-12-19 | Sitronix Technology Corp | Touch panel and touch detection circuit thereof |
| CN109189273A (en) * | 2018-11-06 | 2019-01-11 | 业成科技（成都）有限公司 | Touch event processing method, device, computer equipment and storage medium |
| CN109189273B (en) * | 2018-11-06 | 2021-11-26 | 业成科技（成都）有限公司 | Touch event processing method and device, computer equipment and storage medium |
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Application publication date: 20110831 |