CN101261562B - Electric resistance type touch control display panel - Google Patents
Electric resistance type touch control display panel Download PDFInfo
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- CN101261562B CN101261562B CN2008100960443A CN200810096044A CN101261562B CN 101261562 B CN101261562 B CN 101261562B CN 2008100960443 A CN2008100960443 A CN 2008100960443A CN 200810096044 A CN200810096044 A CN 200810096044A CN 101261562 B CN101261562 B CN 101261562B
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- touch control
- display panel
- electric resistance
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Abstract
A resistive touch display panel comprises a first base plate and a second base plate which is arranged above the first base plate. The first base plate comprises a plurality of scanning lines and data lines for defining a plurality of pixel regions, a plurality of pixel units and a plurality of touch units. The pixel units are respectively positioned in one of the pixel regions and are electrically connected with one of the scanning lines and one of the data lines. The touch units are respectively electrically connected with one of the scanning lines and one of the data lines and are also distributed in at least two pixel regions. The second base plate includes a plurality of spacers which are supported between the first base plate and the second base plate, a plurality of touch convex blocks and a common electrode which covers the spacers and the touch convex blocks. The touch convex blocks are respectively positioned above one of the touch units, and a gap is maintained between the common electrode on the touch convex blocks and the touch units.
Description
[technical field]
The invention relates to a kind of display panel, and particularly relevant for a kind of electric resistance type touch control display panel (resistance type touch display panel).
[background technology]
Fast development and application along with information technology, radio mobile communication and information household electrical appliances, to carry more convenient, lighter and handyizatioier of volume and operate more humane purpose in order to reach, many information products change into and use contact panel (Touch Panel) as input media by input medias such as traditional keyboard or mouses.
At present, contact panel roughly can be divided into contact panels such as resistance-type, condenser type, optical profile type, sound wave type and electromagnetic type, is modal product with electric resistance touch-control panel and capacitance type touch-control panel wherein.With regard to capacitance type touch-control panel, but the characteristic of multi-point touch provides more humane operator scheme, makes capacitance type touch-control panel be subjected to the favor in market gradually.But, capacitance type touch-control panel must touch contact panel with conductive material and just can operate, thereby the user can't be with gloves or operates with the nonconductor material.
With electric resistance touch-control panel, no matter the user touches contact panel with which kind of medium can be operated, thereby has improved the ease of use of contact panel.In addition, the required cost of electric resistance touch-control panel is lower and the electric resistance touch-control panel technical development is comparatively ripe, thereby market share is higher.In general, electric resistance touch-control panel has two kinds of circuit design and corresponding account form, and it is a matching test and digital.The electric resistance touch-control panel of matching test has high location analytic ability, applicable to the operator scheme of handwriting input.Digital electric resistance touch-control panel then can be widely used in the customized commodity with the induction block that customer demand is made different size.
[summary of the invention]
The invention provides a kind of electric resistance type touch control display panel, its touch control unit is distributed in a plurality of pixel regions, makes it have preferable sensitivity and transmittance.
The present invention proposes a kind of electric resistance type touch control display panel, and it comprises one first substrate and one second substrate.First substrate comprises multi-strip scanning line (scan line), many data lines (data line), a plurality of pixel cell and a plurality of touch control unit, and wherein these sweep traces and these data lines define a plurality of pixel regions (pixel region) on first substrate.Each pixel cell lay respectively at wherein in the pixel region and with sweep trace wherein and wherein a data line electrically connect.Each touch control unit respectively with sweep trace wherein and wherein a data line electrically connect, and each touch control unit is distributed in two pixel regions at least.Second substrate is disposed at first substrate top, and wherein second substrate comprises a plurality of separation material (spacer) between first substrate and second substrate, a plurality of touch lug (touch protrusion) and common electrodes (commonelectrode) of being supported in.Common electrode covers these separation materials and these touch lug.Each touch lug lays respectively at wherein touch control unit top, and keeps a gap (gap) between common electrode on each touch lug and the touch control unit.
In one embodiment of this invention, each above-mentioned pixel cell comprise a first film transistor (Thin-film transistor, TFT) and a pixel electrode.The first film transistor AND gate wherein sweep trace and wherein a data line electrically connect.Pixel electrode and the first film transistor electrically connect.
In one embodiment of this invention, each above-mentioned touch control unit comprises a touching signals sensing circuit and a touch pad.Touch pad and touching signals sensing circuit electrically connect.
In one embodiment of this invention, above-mentioned touching signals sensing circuit comprises one second thin film transistor (TFT) and a back-end circuit.Second thin film transistor (TFT) and touch pad electrically connect.The back-end circuit and second thin film transistor (TFT) electrically connect, and wherein back-end circuit is suitable for seeing through the voltage that second thin film transistor (TFT) is read touch pad, and back-end circuit is suitable for making the voltage of touch pad to maintain a reference voltage after reading the voltage of touch pad.
In one embodiment of this invention, above-mentioned reference voltage is different with the voltage of common electrode.
In one embodiment of this invention, the second above-mentioned substrate has a black matrix (Black Matrix, BM), wherein these separation materials is to be positioned on the black matrix.
In one embodiment of this invention, the second above-mentioned substrate has a black matrix, and common electrode covers these separation materials, these touch lug and black matrix.
In one embodiment of this invention, more comprise a bed course (stage) on the first above-mentioned substrate, and common electrode contacts with bed course.
In one embodiment of this invention, the common electrode that wherein contacts with bed course is to be electrically insulated with these sweep traces, these data lines, these pixel cells and these touch control units.
In one embodiment of this invention, wherein bed course system and sweep trace or data line are overlapping.
Electric resistance type touch control display panel of the present invention, when the user touched display panel, the common electrode that is covered on the touch lug can contact pairing touch pad, and transfers user's touching to electronic signal, and then calculates the position of touching a little.In addition, because the touch control unit of electric resistance type touch control display panel of the present invention is distributed in a plurality of pixel regions, therefore electric resistance type touch control display panel of the present invention has preferable sensitivity and transmittance.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate appended graphic being described in detail below.
[description of drawings]
Fig. 1 is the schematic top plan view of a kind of electric resistance type touch control display panel of one embodiment of the invention.
Fig. 2 A is the diagrammatic cross-section of electric resistance type touch control display panel along the I-I line.
Synoptic diagram when Fig. 2 B touches electric resistance type touch control display panel for finger.
[embodiment]
Fig. 1 is the schematic top plan view of a kind of electric resistance type touch control display panel of one embodiment of the invention, and Fig. 2 A is the diagrammatic cross-section of electric resistance type touch control display panel along the I-I line.Please also refer to Fig. 1 and Fig. 2 A, in the present embodiment, electric resistance type touch control display panel 100 comprises one first substrate 200 and one second substrate 300.First substrate 200 comprises multi-strip scanning line 210, many data lines 220, a plurality of pixel cell 230 and a plurality of touch control units 240, and wherein these sweep traces 210 define a plurality of pixel regions 260 with these data lines 220 on first substrate 200.
Hold above-mentionedly, each pixel cell 230 lays respectively at wherein in the pixel region 260, and with sweep trace 210 wherein and wherein a data line 220 electrically connect.Particularly, each pixel cell 230 comprises a first film transistor 232 and a pixel electrode 234.The first film transistor 232 and sweep trace 210 wherein and wherein a data line 220 electrically connect.Pixel electrode 234 electrically connects with the first film transistor 232.
Each touch control unit 240 respectively with sweep trace 210 wherein and wherein a data line 220 electrically connect, and each touch control unit 240 is distributed in two pixel regions 260 (touch control unit 240 that Fig. 1 illustrated be example to be distributed in three pixel regions 260) at least.Because touch control unit 240 is distributed in a plurality of pixel regions 260, so can increase the sensitivity of electric resistance type touch control display panel 100.In addition, because the touch control unit 240 of present embodiment is distributed in a plurality of pixel regions 260, so can make electric resistance type touch control display panel 100 have high aperture opening ratio (aperture ratio).
Particularly, each touch control unit 240 comprises a touching signals sensing circuit 242 and a touch pad 244.Touch pad 244 electrically connects with touching signals sensing circuit 242.Touching signals sensing circuit 242 comprises one second a thin film transistor (TFT) 242a and a back-end circuit 242b.The second thin film transistor (TFT) 242a and touch pad 244 electrically connect.The back-end circuit 242b and the second thin film transistor (TFT) 242a electrically connect, wherein back-end circuit 242b is suitable for seeing through the voltage that the second thin film transistor (TFT) 242a reads touch pad 244, and back-end circuit 242b is suitable for making the voltage of touch pad 244 to maintain a reference voltage V1 after the voltage of reading touch pad 244.
Particularly, in the present embodiment, touch control unit 240 comprises a storage capacitors 246.Storage capacitors 246 be disposed at the second thin film transistor (TFT) 242a and contact mat 244 between, and be formed at (Cst ongate) on the sweep trace 210, wherein storage capacitors 246 can make pixel cell 230 have memory function.In addition, when storage capacitors 246 was big more, the storage of 230 pairs of write signals of pixel cell was good more with the maintenance function.
Please more simultaneously with reference to figure 1 and Fig. 2 A, in the present embodiment, second substrate 300 is disposed at first substrate, 200 tops, wherein second substrate 300 comprise a plurality of be supported in first substrate 200 and second substrate 300 between separation material 310, a plurality of touch lug 320 and a common electrode 330.Common electrode 330 covers these separation materials 310 and these touch lug 320, and wherein reference voltage V1 is different with the voltage V2 of common electrode 330.Each touch lug 320 lays respectively at a wherein touch control unit 240 tops, and the common electrode on each touch lug 320 330 is kept a clearance G with asking of touch control unit 240.
Generally speaking, separation material 310 main purposes are to make first substrate 200 and second substrate 300 can keep certain spacing.Separation material 310 for example is bar-shaped separation material (Stick Type Spacer), spherical separation material (Ball-Type Spacer) or column separation material (Post Type Spacer).In the present embodiment, the separation material 310 that illustrated of Fig. 2 A is to be example with the column separation material.
Furthermore, in the present embodiment, second substrate 300 has a black matrix 340, and wherein these separation materials 310 are to be positioned on the black matrix 340, and common electrode 330 covers these separation materials 310, these touch lug 320 and black matrix 340.What deserves to be mentioned is, generally in order to allow display panel have the function that colorize shows, therefore dispose a plurality of colored filter film 350 on second substrate 300, wherein colored filter film 350 for example is the colored filter film of different colors such as redness, green or blueness.In this example, the touch lug 320 that illustrates of Fig. 2 A is to be positioned on the colored filter film 350.
In addition, more comprise a bed course 250 on first substrate 200 of present embodiment, and the common electrode 330 that is covered on the separation material 310 contacts with bed course 250, and the common electrode 330 that wherein contacts with bed course 250 is electrically insulated with these sweep traces 210, these data lines 220, these pixel cells 230 and these touch control units 240.
In brief, when the user touches electric resistance type touch control display panel 100, separation material 310 can be because of being subjected to external force to produce distortion, cause shortening the spacing of first substrate 200 and second substrate 300, and the common electrode 330 that is covered on the touch lug 320 can touch pairing touch pad 244, so that the voltage of touch pad 244 changes, detailed speech, the voltage of touch pad 244 can be changed to the voltage V2 identical with common electrode 330 from reference voltage V1, transfer user's touching to electronic signal, and then calculate the position of touching a little, please refer to Fig. 2 B.
In addition, because the touch control unit 240 of electric resistance type touch control display panel 100 of the present invention is distributed in a plurality of pixel regions 260, therefore increased the number of touch control unit 240 in the unit area, when the user touches electric resistance type touch control display panel 100, the number that is covered in the pairing touch pad 244 of common electrode 330 contacts on the touch lug 320 also increases, and then makes electric resistance type touch control display panel 100 have preferable sensitivity.In addition, common electrode 330 contacts with bed course 250.For example, one of them can be arranged on sweep trace 210, data line 220 or storage capacitors 246 tops at least with separation material 310 for bed course 250, that is to say, bed course 250 and separation material 310 one of them and sweep trace 210, data line 220 or storage capacitors 246 at least are overlapping, thus, can save arrangement space, increase aperture opening ratio.In this mandatory declaration is that in the example that other do not illustrate, bed course 250 can be sandwich construction, it comprises upper strata and lower floor, and lower floor can electrically conduct with sweep trace 210, data line 220 or capacitor storage beam, and the upper strata is arranged in the lower floor, can be the insulation material, the upper strata contacts with common electrode 330.
What deserves to be mentioned is that first substrate 200 and second substrate 300 can be glass substrate, quartz base plate or plastic substrate.The first film transistor 232 and the second thin film transistor (TFT) 242a for example are the thin film transistor (TFT) of amorphous silicon film transistor, low-temperature polysilicon film transistor, organosilicone film transistor or other kinds.The material of pixel electrode 234 can be tin indium oxide (Indium Tin Oxide, ITO), indium zinc oxide (Indium ZincOxide, IZO) or other transparent conductive materials.
In sum, electric resistance type touch control display panel proposed by the invention has following advantage at least:
(1) touch control unit is distributed in a plurality of pixel regions, can increase the sensitivity of electric resistance type touch control display panel.
(2) touch control unit is distributed in a plurality of pixel regions, can increase the transmittance of electric resistance type touch control display panel.
Though the present invention discloses as above with embodiment; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when doing a little change and retouching, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (10)
1. electric resistance type touch control display panel comprises:
One first substrate, comprise multi-strip scanning line, many data lines, a plurality of pixel cell and a plurality of touch control units, wherein said sweep trace and described data line define a plurality of pixel regions on this first substrate, respectively this pixel cell lay respectively at wherein in the pixel region and with sweep trace wherein and wherein a data line electrically connect, and respectively this touch control unit respectively with sweep trace wherein and wherein a data line electrically connect, and respectively this touch control unit strides across at least two pixel regions; And
One second substrate, be disposed at this first substrate top, wherein this second substrate comprises a plurality of separation material, a plurality of touch lug and common electrodes that are supported between this first substrate and this second substrate, this common electrode covers described separation material and described touch lug, and respectively this touch lug lays respectively at wherein touch control unit top, and respectively keeps a gap between this common electrode on this touch lug and this touch control unit.
2. electric resistance type touch control display panel according to claim 1 is characterized in that, respectively this pixel cell comprises:
One the first film transistor, with sweep trace wherein and wherein a data line electrically connect; And
One pixel electrode electrically connects with this first film transistor.
3. electric resistance type touch control display panel according to claim 1 is characterized in that, respectively this touch control unit comprises:
One touching signals sensing circuit; And
One touch pad electrically connects with this touching signals sensing circuit.
4. electric resistance type touch control display panel according to claim 3 is characterized in that, this touching signals sensing circuit comprises:
One second thin film transistor (TFT) electrically connects with this touch pad; And
One back-end circuit, electrically connect with this second thin film transistor (TFT), wherein this back-end circuit is suitable for seeing through the voltage that this second thin film transistor (TFT) is read this touch pad, and this back-end circuit is suitable for making the voltage of this touch pad to maintain a reference voltage after reading the voltage of this touch pad.
5. electric resistance type touch control display panel according to claim 4 is characterized in that, this reference voltage is different with the voltage of this common electrode.
6. electric resistance type touch control display panel according to claim 1 is characterized in that, this second substrate has a black matrix, and wherein said separation material is positioned on this black matrix.
7. electric resistance type touch control display panel according to claim 1 is characterized in that, this second substrate has a black matrix, and this common electrode covers described separation material, described touch lug and should deceive matrix.
8. electric resistance type touch control display panel according to claim 1 is characterized in that, more comprise a bed course on this first substrate, and this common electrode contacts with this bed course.
9. electric resistance type touch control display panel according to claim 8 is characterized in that, this common electrode that contacts with this bed course and described sweep trace, described data line, described pixel cell and described touch control unit are electrically insulated.
10. electric resistance type touch control display panel according to claim 8 is characterized in that, this bed course and this sweep trace or this data line are overlapping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100960443A CN101261562B (en) | 2008-04-25 | 2008-04-25 | Electric resistance type touch control display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100960443A CN101261562B (en) | 2008-04-25 | 2008-04-25 | Electric resistance type touch control display panel |
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| Publication Number | Publication Date |
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| CN101261562A CN101261562A (en) | 2008-09-10 |
| CN101261562B true CN101261562B (en) | 2011-09-28 |
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| CN2008100960443A Active CN101261562B (en) | 2008-04-25 | 2008-04-25 | Electric resistance type touch control display panel |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101727228B (en) * | 2008-10-21 | 2012-11-28 | 华映视讯（吴江）有限公司 | Touch panel and touch method thereof |
| CN101770100B (en) * | 2008-12-31 | 2011-12-28 | 上海天马微电子有限公司 | Touch liquid crystal display device and touch recognition method |
| CN101807127B (en) * | 2009-02-17 | 2012-05-30 | 胜华科技股份有限公司 | Touch control type display panel |
| CN101533172B (en) * | 2009-05-04 | 2010-07-07 | 友达光电股份有限公司 | A touch control display panel |
| CN101593069B (en) * | 2009-07-01 | 2011-08-03 | 友达光电股份有限公司 | Resistance type touch display panel |
| CN101963715B (en) * | 2009-07-24 | 2013-05-22 | 群康科技(深圳)有限公司 | Touch-control display |
| CN102073402B (en) * | 2009-11-20 | 2013-10-30 | 群康科技(深圳)有限公司 | Touch display device |
| TWI410835B (en) | 2009-12-09 | 2013-10-01 | Au Optronics Corp | Touch display panel, pixel structure and multi-sensing structure |
| TWI424349B (en) * | 2010-02-12 | 2014-01-21 | Au Optronics Corp | Sensor structure and touch display panel |
| CN102541335B (en) * | 2010-12-30 | 2015-08-26 | 上海天马微电子有限公司 | Touch display unit |
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2008
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