CN105159511A - Self-contained embedded touch panel and detection method - Google Patents
Self-contained embedded touch panel and detection method Download PDFInfo
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- CN105159511A CN105159511A CN201510552856.4A CN201510552856A CN105159511A CN 105159511 A CN105159511 A CN 105159511A CN 201510552856 A CN201510552856 A CN 201510552856A CN 105159511 A CN105159511 A CN 105159511A
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Abstract
The invention discloses a self-contained embedded touch panel and a detection method. The method comprises the following steps of grouping touch electrodes on a touch panel into a first touch electrode and a second touch electrode which are alternatively arranged; penetrating pictures of the same gray scale into first signal leading-in ends of the first touch electrode and the second touch electrode, and penetrating corresponding public electrode signals into second signal leading-in ends of the first touch electrode and the second touch electrode so as to judge whether the touch electrodes are normal, wherein when penetrating the pictures of the same gray scale, driving signals with alternative positive and negative polarities are adopted. According to the self-contained embedded touch panel and the detection method, the normal state, the short-circuit condition and the breaker status for connection of the touch electrodes can be detected, so that non-performing products are intercepted to prevent resource waste caused after inflowing the non-performing products, and thus the production cost is reduced.
Description
Technical field
The present invention relates to liquid crystal display control technology field, specifically, relate to the embedded touch panel of a kind of self-tolerant and detection method.
Background technology
Along with popularizing of smart electronics product, capacitive touch screen is widely used in the various electronic product such as smart mobile phone, panel computer.Existing capacitive touch screen structure comprises with the external hanging type capacitance plate that is representative such as G+G, G+F, GFF, OGS and shields with the embedded capacitance that Oncell, Incell are representative.
In recent years, people pursue more and more lightening user's formula and experience, and cause occurring OGS, Oncell, Incell tri-kinds of technology and the situation of striving.Wherein, due to the unique advantage of Incell technology on processing procedure, its can accomplish more frivolous than OGS, Oncell, light transmission is better, more can meet the demand of client, certainly will become the main flow of following capacitive touch screen.
In traditional LCD production procedure, will detect after becoming box cut, we are referred to as celltest (box test), and what be mainly used in detecting in display is bad, in case defective products inflow last part technology.Due to the introducing of Incell touch technology, public electrode can be cut into each block, adds the risk of short circuit between public electrode and public electrode open circuit, therefore needs the problem solved to be the defective products how detecting Incell product.
Summary of the invention
For overcoming the above problems, the invention provides the embedded touch panel of a kind of self-tolerant and detection method, in order to realize interception defective products.
According to an aspect of the present invention, provide a kind of detection method for the embedded touch panel of self-tolerant, comprising:
Touch control electrode on touch panel is grouped into the first touch control electrode be alternately arranged and the second touch control electrode, to provide identical detection signal to the touch control electrode in same group;
To the same grey menu of the first signal leading-in end injection of described first touch control electrode and described second touch control electrode, simultaneously to the common electrode signal that both secondary signal leading-in end injection are corresponding, and then judge that whether touch control electrode is normal according to the bright dark situation of described first touch control electrode and described second viewing area, touch control electrode place
Wherein, the drive singal adopting positive-negative polarity to replace during the same grey menu of injection.
According to one embodiment of present invention, described common electrode signal is set to abnormal common electrode signal when comprising the normal common electrode signal of direct current required when touch panel normally works and touch panel cisco unity malfunction, and the drive singal of described normal common electrode signal, described abnormal common electrode signal and described same grey menu coordinates with the detection realizing touch control electrode.
According to one embodiment of present invention, judge that the whether normal step of touch control electrode comprises the step judging touch control electrode open circuit further, this step comprises:
The first signal leading-in end to described first touch control electrode and described second touch control electrode replaces a frame positive polarity drive singal and a frame negative polarity drive singal of the same grey menu of injection;
Simultaneously to the abnormal common electrode signal of secondary signal leading-in end injection first of described first touch control electrode and described second touch control electrode, to make the bright dark alternately appearance of whole contact panel, wherein, during as being bright at whole contact panel, viewing area, touch control electrode place is dark picture, then this touch control electrode open circuit.
According to one embodiment of present invention, described first abnormal common electrode signal is direct current signal, and differs comparatively large with the normal common electrode signal current potential of described direct current, can obviously be distinguished with the dark picture and bright picture that make viewing area, touch control electrode place.
According to one embodiment of present invention, described first abnormal common electrode signal is positive polarity drive singal or the negative polarity drive singal of same grey menu.
According to one embodiment of present invention, judge that the whether normal step of touch control electrode comprises the step judging touch control electrode short circuit further, this step comprises:
The first signal leading-in end to described first touch control electrode and described second touch control electrode replaces a frame positive polarity drive singal and a frame negative polarity drive singal of the same grey menu of injection;
The simultaneously abnormal common electrode signal of secondary signal leading-in end injection second of in described first touch control electrode and described second touch control electrode, another the normal common electrode signal of secondary signal leading-in end injection direct current in both, to make the viewing area, touch control electrode place of the normal common electrode signal of direct current described in injection be bright picture, described in injection, the viewing area, touch control electrode place of the second abnormal common electrode signal is dark picture, as identical in there is adjacent pictures brightness, then judge the touch control electrode short circuit that adjacent pictures brightness exists together mutually.
According to one embodiment of present invention, the potential difference of the drive singal of described second abnormal common electrode signal and same grey menu is set to the potential difference being less than described second abnormal common electrode signal and described direct current common electrode signal, can obviously be distinguished with the dark picture and bright picture that make viewing area, touch control electrode place.
According to one embodiment of present invention, described second abnormal common electrode signal is set to identical with the drive singal of grey menu.
According to one embodiment of present invention, before judging the whether normal step of touch control electrode, the whether normal step of detection touch panel picture display is also comprised.
According to another aspect of the present invention, additionally provide the embedded touch panel of a kind of self-tolerant, adopt above arbitrary detection method to detect the touch control electrode on it, described touch panel comprises:
Multiple is that matrix arranges and the touch control electrode of mutually insulated, and described touch control electrode is grouped into the first touch control electrode and the second touch control electrode that are alternately arranged;
Be arranged at two signal lines of described touch panel side, described first touch control electrode and described second touch control electrode are connected in corresponding signal lines by respective touch-control wire,
Wherein, between described signal lines and corresponding described touch control electrode, a switch is respectively set, one switching signal control line is set in described switch side to provide switching signal to described switch, and then by controlling described switch to realize to provide common electrode signal by described detection signal alignment touch control electrode described in each.
Beneficial effect of the present invention:
The present invention is by arranging the drive singal of normal common electrode signal, abnormal common electrode signal and same grey menu, three kinds of signals coordinate the detection that can realize normal condition, short-circuit condition and the off state that touch control electrode connects, thus realize interception defective products, in case defective products inflow is consequent cause the wasting of resources, and then reduce production cost.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from instructions, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in instructions, claims and accompanying drawing and obtain.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, do simple introduction by accompanying drawing required in embodiment or description of the prior art below:
Fig. 1 is method flow diagram according to an embodiment of the invention;
Fig. 2 is touch control electrode open circuit detection signal sequential chart according to an embodiment of the invention;
Fig. 3 is touch control electrode short-circuit detection signal sequential chart according to an embodiment of the invention; And
Fig. 4 is the embedded touch panel structural representation of self-tolerant according to an embodiment of the invention.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, to the present invention, how application technology means solve technical matters whereby, and the implementation procedure reaching technique effect can fully understand and implement according to this.It should be noted that, only otherwise form conflict, each embodiment in the present invention and each feature in each embodiment can be combined with each other, and the technical scheme formed is all within protection scope of the present invention.
Be illustrated in figure 1 a kind of detection method process flow diagram for the embedded touch panel of self-tolerant according to an embodiment of the invention, below with reference to Fig. 1, the present invention is described in detail.
First, in step s 110, the touch control electrode on touch panel is grouped into the first touch control electrode be alternately arranged and the second touch control electrode.After touch control electrode being divided into groups, identical detection signal can be provided to the touch control electrode in same group.
Touch control electrode in In-cell touch panel arranges and mutually insulated in matrix usually, and spaced touch control electrode horizontal and vertical on touch panel is divided into one group, and remaining touch control electrode is divided into another group.In the present invention, for convenience of description, by the first row first row touch control electrode on touch panel electrode be in a packet referred to as the first touch control electrode, the electrode in another grouping is referred to as the second touch control electrode.
Next, in the step s 120, to the same grey menu of the first signal leading-in end injection of the first touch control electrode and the second touch control electrode, simultaneously to both secondary signal leading-in end injection common electrode signal, and then judge whether touch control electrode is connected normal according to the first touch control electrode and the brightness case of the second viewing area, touch control electrode place, wherein, the drive singal adopting positive-negative polarity to replace during injection one grey menu.
In this step, be the injection mode of clear description detection signal, the first touch control electrode and the second touch control electrode all define two signal input parts, i.e. the first signal leading-in end and secondary signal leading-in end.First signal leading-in end is for introducing the grayscale signal of pixel, and secondary signal leading-in end is for introducing the common electrode signal of pixel.In touch-control display panel, each touch control electrode is made up of public electrode usually, insulated from each other between each touch control electrode.During contact panel work, each touch control electrode applies identical common electrode signal, but when testing the touch control electrode on contact panel, need apply separately grayscale signal required separately and common electrode signal to each touch control electrode.Therefore, the secondary signal leading-in end of each touch control electrode need introduce through different touch-control wires needed for common electrode signal, and the first signal leading-in end of each touch control electrode introduced by the data line on contact panel needed for grayscale signal.
Touch control electrode abnomal condition comprises short-circuit condition and off state, for these two kinds of abnomal conditions, secondary signal leading-in end to the first touch control electrode and the second touch control electrode inputs different common electrode signal, and coordinate with the positive-negative polarity alternating drive signal of the grey menu of the first signal leading-in end injection of the first touch control electrode and the second touch control electrode, can judge that touch control electrode is in normal condition, short-circuit condition or off state.In the present invention, common electrode signal is set to comprise the normal common electrode signal of direct current required when touch panel normally works, and also comprises abnormal common electrode signal during touch panel cisco unity malfunction.The drive singal of the normal common electrode signal of direct current, abnormal common electrode signal and grey menu coordinates the detection that can realize touch control electrode.
In one embodiment of the invention, judge that the whether normal step of touch control electrode comprises the step judging touch control electrode open circuit further.Judge that the step of touch control electrode open circuit the first signal leading-in end comprised further to the first touch control electrode and the second touch control electrode replaces a frame positive polarity drive singal and a frame negative polarity drive singal of the same grey menu of injection.That is, adopt in this step and exchange type of drive, same grey menu is driven by a pair equal, opposite polarity signal of amplitude, and the brightness of this grey menu is identical in this case.
While replacing the same grey menu signal of injection to the first signal leading-in end of the first touch control electrode and the second touch control electrode, to the abnormal common electrode signal of secondary signal leading-in end injection first of the first touch control electrode and the second touch control electrode, the then bright dark alternately appearance of whole contact panel, wherein, during as being bright at whole contact panel, viewing area, touch control electrode place is dark picture, then this touch control electrode open circuit.Whole contact panel is herein bright secretly alternately occurs that the viewing area at all touch control electrode places referred on whole panel is in bright picture or dark picture simultaneously.
Concrete, to the first signal leading-in end previous frame injection positive polarity drive singal of the first touch control electrode and the second touch control electrode, next frame injection negative polarity drive singal.The corresponding abnormal common electrode signal of secondary signal input end injection first, positive polarity drive singal is different with the voltage difference between negative polarity drive singal from the first abnormal common electrode signal, causes the bright dark Alternation Display of this contact panel.
Be illustrated in figure 2 touch control electrode open circuit detection signal sequential chart according to an embodiment of the invention.In the abnormal common electrode signal situation of first shown in Fig. 2, the voltage difference of previous frame drive singal and the first abnormal common electrode signal is less than the voltage difference of next frame drive singal and the first abnormal common electrode signal, this just causes the corresponding dark picture of previous frame drive singal, the corresponding bright picture of next frame drive singal.
If now a certain touch control electrode open circuit, because the first abnormal common electrode signal cannot send into this touch control electrode, the touch control electrode current potential at this place show as with positive polarity or negative line driving voltage very nearly the same, therefore this position display is black picture, such touch control electrode open circuit situation just can be judged.
In one embodiment of the invention, adopt the direct current signal of 0v for usual normal common electrode signal, the first abnormal common electrode signal also adopts direct current signal, as shown in Figure 2.Further, the dark picture on contact panel and bright picture can obviously be distinguished, what the first abnormal common electrode signal and direct current normal common electrode signal potential difference (PD) are arranged is larger.Like this, the voltage difference of previous frame drive singal and the first abnormal common electrode signal, the voltage difference of next frame drive singal and the first abnormal common electrode signal, these two voltage differences one of them can become large, another can diminish, the bright picture formed and the bright dark contrast of dark picture higher, thus be more conducive to utilizing bright dark situation to judge touch control electrode whether open circuit.
In one embodiment of the invention, the first abnormal common electrode signal is positive polarity drive singal or the negative polarity drive singal of same grey menu.Based on Fig. 2, be described for positive polarity drive singal.Now, when previous frame image, the voltage difference of previous frame drive singal and the first abnormal common electrode signal is zero, and viewing area, touch control electrode place is shown as black picture.When next frame image, the voltage difference of next frame drive singal and the first abnormal common electrode signal is 2 times when normally showing, and viewing area, touch control electrode place is shown as bright picture.In this case, black picture and the contrast of bright picture obviously, thus are conducive to judging touch control electrode whether open circuit.Displaying principle when first abnormal common electrode signal is negative polarity drive singal is identical.
In one embodiment of the invention, judge that the whether normal step of touch control electrode comprises the step judging touch control electrode short circuit further.Judge that the step of touch control electrode short circuit the first signal leading-in end comprised further to the first touch control electrode and the second touch control electrode replaces a frame positive polarity drive singal and a frame negative polarity drive singal of the same grey menu of injection.
While replacing the same grey menu signal of injection to the first signal leading-in end of the first touch control electrode and the second touch control electrode, the abnormal common electrode signal of secondary signal leading-in end injection second of one in the first touch control electrode and the second touch control electrode, the normal common electrode signal of another secondary signal leading-in end injection direct current in both, to make the viewing area, touch control electrode place of the normal common electrode signal of this contact panel injection direct current be bright picture, the viewing area, touch control electrode place of the abnormal common electrode signal of injection second is dark picture, as identical in there is adjacent pictures brightness, then judge the touch control electrode short circuit that adjacent pictures brightness exists together mutually.Contact panel is herein when showing same picture, and on panel, the first touch control electrode and the second bright inner room in viewing area, touch control electrode place are every display.
Concrete, can to the abnormal common electrode signal of secondary signal leading-in end injection second of the first touch control electrode, the normal common electrode signal of secondary signal leading-in end injection to the second touch control electrode, then on this contact panel, the first viewing area, touch control electrode place can not normally show, for dark picture, second viewing area, touch control electrode place is normal grey menu, as bright picture.Also can to the abnormal common electrode signal of secondary signal leading-in end injection second of the second touch control electrode, the normal common electrode signal of secondary signal leading-in end injection to the first touch control electrode, then on this contact panel, the second viewing area, touch control electrode place can not normally show, for dark picture, first viewing area, touch control electrode place is normal grey menu, as bright picture.
As certain first touch control electrode and the second adjacent touch control electrode are short-circuited, then the current potential of two touch control electrode secondary signal leading-in ends is identical, thus make the brightness of these two touch control electrode identical, there is the situation that the display frame of adjacent touch electrode is identical, like this, the short-circuit conditions of touch control electrode can just be judged.
In one embodiment of the invention, the potential difference of the drive singal of the second abnormal common electrode signal and same grey menu is less than the potential difference of the second abnormal common electrode signal and direct current common electrode signal, can obviously be distinguished with the dark picture and bright picture that make touch control electrode.
In one embodiment of the invention, the second abnormal common electrode signal is set to identical with the drive singal of grey menu.Be described for the signal shown in Fig. 3, when the drive singal of the normal common electrode signal of secondary signal leading-in end injection direct current to the second touch control electrode, the secondary signal leading-in end injection grey menu to the first touch control electrode, the voltage difference at the second touch control electrode two ends is zero, second viewing area, touch control electrode place shows black picture, first viewing area, touch control electrode place display grey menu, as bright picture.Like this, black picture and the contrast of bright picture obviously, thus are conducive to judging touch control electrode whether short circuit, and, additionally need not produce the second different abnormal common electrode signal like this.
Also comprised before judging the whether normal step of touch control electrode in one embodiment of the invention and detect the whether normal step of touch panel picture display.Now, (this step is that prior art does not add detailed description) is detected by existing normal mode, the normal common electrode signal of first signal leading-in end injection simultaneously of the first touch control electrode and the second touch control electrode, can secondary signal leading-in end injection normal touch panel scan signal, normally display frame in order to detect touch panel.This is detected touch panel can the step of the normal step of display frame and above detection touch control electrode whether short circuit and open circuit combine, just can realize the complete detection of touch panel.By above detection method, the detection to normal condition, short-circuit condition and the off state that touch control electrode connects can be realized, thus realize interception defective products, in case defective products flows into rear top cause the wasting of resources, and then reduce production cost
According to another aspect of the present invention, the embedded touch panel of a kind of self-tolerant is additionally provided, as shown in Figure 4.This touch panel comprises: multiple is that matrix arranges and the touch control electrode of mutually insulated, and this touch control electrode is grouped into the first touch control electrode and the second touch control electrode that are alternately arranged; Be arranged at two signal lines of touch panel side, first touch control electrode and described second touch control electrode are connected in corresponding signal lines by respective touch-control wire, wherein, between signal lines and each touch control electrode, a switch is respectively set, one switching signal control line is set in the side of switch to provide switching signal to switch, thus realizes by the control of signal lines to each touch control electrode.This touch panel can adopt above-described method to detect touch control electrode.
In addition, by respectively arranging a switch between signal lines and each touch control electrode, this switch by a switching signal control line to provide switch controlling signal to switch, common electrode signal can be provided when needed to touch control electrode, when not needing, the connection of disconnection detection signal wire and touch control electrode, makes touch control electrode normally work, the signals such as the electrostatic interference introduced by signal lines can also be avoided, improve the display reliability of contact panel.
Although embodiment disclosed in this invention is as above, the embodiment that described content just adopts for the ease of understanding the present invention, and be not used to limit the present invention.Technician in any the technical field of the invention; under the prerequisite not departing from spirit and scope disclosed in this invention; any amendment and change can be done what implement in form and in details; but scope of patent protection of the present invention, the scope that still must define with appending claims is as the criterion.
Claims (10)
1., for a detection method for the embedded touch panel of self-tolerant, comprising:
Touch control electrode on touch panel is grouped into the first touch control electrode be alternately arranged and the second touch control electrode, to provide identical detection signal to the touch control electrode in same group;
To the same grey menu of the first signal leading-in end injection of described first touch control electrode and described second touch control electrode, simultaneously to the common electrode signal that both secondary signal leading-in end injection are corresponding, and then judge that whether touch control electrode is normal according to the bright dark situation of described first touch control electrode and described second viewing area, touch control electrode place
Wherein, the drive singal adopting positive-negative polarity to replace during the same grey menu of injection.
2. detection method according to claim 1, it is characterized in that, described common electrode signal is set to abnormal common electrode signal when comprising the normal common electrode signal of direct current required when touch panel normally works and touch panel cisco unity malfunction, and the drive singal of described normal common electrode signal, described abnormal common electrode signal and described same grey menu coordinates with the detection realizing touch control electrode.
3. detection method according to claim 2, is characterized in that, judge that the whether normal step of touch control electrode comprises the step judging touch control electrode open circuit further, this step comprises:
The first signal leading-in end to described first touch control electrode and described second touch control electrode replaces a frame positive polarity drive singal and a frame negative polarity drive singal of the same grey menu of injection;
Simultaneously to the abnormal common electrode signal of secondary signal leading-in end injection first of described first touch control electrode and described second touch control electrode, to make the bright dark alternately appearance of whole contact panel, wherein, during as being bright at whole contact panel, viewing area, touch control electrode place is dark picture, then this touch control electrode open circuit.
4. detection method according to claim 3, it is characterized in that, described first abnormal common electrode signal is direct current signal, and differs comparatively large with the normal common electrode signal current potential of described direct current, can obviously be distinguished with the dark picture and bright picture that make viewing area, touch control electrode place.
5. detection method according to claim 4, is characterized in that, described first abnormal common electrode signal is positive polarity drive singal or the negative polarity drive singal of same grey menu.
6. the detection method according to any one of claim 2-5, is characterized in that, judge that the whether normal step of touch control electrode comprises the step judging touch control electrode short circuit further, this step comprises:
The first signal leading-in end to described first touch control electrode and described second touch control electrode replaces a frame positive polarity drive singal and a frame negative polarity drive singal of the same grey menu of injection;
The simultaneously abnormal common electrode signal of secondary signal leading-in end injection second of in described first touch control electrode and described second touch control electrode, another the normal common electrode signal of secondary signal leading-in end injection direct current in both, to make the viewing area, touch control electrode place of the normal common electrode signal of direct current described in injection be bright picture, described in injection, the viewing area, touch control electrode place of the second abnormal common electrode signal is dark picture, as identical in there is adjacent pictures brightness, then judge the touch control electrode short circuit that adjacent pictures brightness exists together mutually.
7. detection method according to claim 6, it is characterized in that, the potential difference of the drive singal of described second abnormal common electrode signal and same grey menu is set to the potential difference being less than described second abnormal common electrode signal and described direct current common electrode signal, can obviously be distinguished with the dark picture and bright picture that make viewing area, touch control electrode place.
8. detection method according to claim 7, is characterized in that, described second abnormal common electrode signal is set to identical with the drive singal of grey menu.
9. detection method according to claim 1, is characterized in that, also comprises and detected the whether normal step of touch panel picture display before judging the whether normal step of touch control electrode.
10. the embedded touch panel of self-tolerant, adopt the detection method according to any one of above 1-9 to detect the touch control electrode on it, described touch panel comprises:
Multiple is that matrix arranges and the touch control electrode of mutually insulated, and described touch control electrode is grouped into the first touch control electrode and the second touch control electrode that are alternately arranged;
Be arranged at two signal lines of described touch panel side, described first touch control electrode and described second touch control electrode are connected in corresponding signal lines by respective touch-control wire,
Wherein, between described signal lines and corresponding described touch control electrode, a switch is respectively set, one switching signal control line is set in described switch side to provide switching signal to described switch, and then by controlling described switch to realize to provide common electrode signal by described detection signal alignment touch control electrode described in each.
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| CN201510552856.4A CN105159511B (en) | 2015-09-01 | 2015-09-01 | A kind of self-tolerant embeds touch panel and detection method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105955524A (en) * | 2016-04-20 | 2016-09-21 | 厦门天马微电子有限公司 | Touch screen and detection method thereof, and touch display |
| CN106680643A (en) * | 2016-12-30 | 2017-05-17 | 武汉华星光电技术有限公司 | Detection method for Incell self-capacitance module panel |
| CN106771817A (en) * | 2017-01-03 | 2017-05-31 | 京东方科技集团股份有限公司 | The detection method of short circuit in touch screen, touch screen |
| CN108287624A (en) * | 2017-12-19 | 2018-07-17 | 南京中电熊猫平板显示科技有限公司 | A kind of embedded touch driving circuit, touch panel and driving method |
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| CN104281323A (en) * | 2014-10-08 | 2015-01-14 | 上海天马微电子有限公司 | Detecting method of touch display panel |
| CN104516609A (en) * | 2014-12-19 | 2015-04-15 | 深圳市华星光电技术有限公司 | Embedded touch panel detecting and manufacturing method |
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| JPH08241046A (en) * | 1995-03-04 | 1996-09-17 | Sony Corp | Display device inspecting method |
| CN104281323A (en) * | 2014-10-08 | 2015-01-14 | 上海天马微电子有限公司 | Detecting method of touch display panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105955524A (en) * | 2016-04-20 | 2016-09-21 | 厦门天马微电子有限公司 | Touch screen and detection method thereof, and touch display |
| CN105955524B (en) * | 2016-04-20 | 2019-01-22 | 厦门天马微电子有限公司 | Touch screen and its detection method, touch display unit |
| CN106680643A (en) * | 2016-12-30 | 2017-05-17 | 武汉华星光电技术有限公司 | Detection method for Incell self-capacitance module panel |
| CN106680643B (en) * | 2016-12-30 | 2020-06-09 | 武汉华星光电技术有限公司 | Incell self-contained module panel detection method |
| CN106771817A (en) * | 2017-01-03 | 2017-05-31 | 京东方科技集团股份有限公司 | The detection method of short circuit in touch screen, touch screen |
| CN108287624A (en) * | 2017-12-19 | 2018-07-17 | 南京中电熊猫平板显示科技有限公司 | A kind of embedded touch driving circuit, touch panel and driving method |
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| Publication number | Publication date |
|---|---|
| CN105159511B (en) | 2018-05-08 |
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