CN101673157B - Touch panel and touch display device - Google Patents
Touch panel and touch display device Download PDFInfo
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- CN101673157B CN101673157B CN200910209174A CN200910209174A CN101673157B CN 101673157 B CN101673157 B CN 101673157B CN 200910209174 A CN200910209174 A CN 200910209174A CN 200910209174 A CN200910209174 A CN 200910209174A CN 101673157 B CN101673157 B CN 101673157B
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Abstract
The invention discloses a touch panel and a touch display device. The touch panel comprises a first substrate with an internal surface and an external surface, a localization sensing structure arranged on the internal surface or the external surface of the first substrate, a second substrate arranged opposite to the first substrate and facing the internal surface of the first substrate, a plurality of press sensing structures arranged between the first substrate and the second substrate and a signal connecting wire in series connection with all press sensing structures. The touch display device comprises the touch panel.
Description
Technical field
The present invention relates to a kind of touch display device that contains contact panel, relate in particular to a kind of contact panel that has the location and push sensing structure.
Background technology
Traditional contact panel is generally the capacitive induction contact panel, and the capacitive induction contact panel is to utilize the electric capacity of detecting between finger and the induction electrode to judge the position of finger.See also Fig. 1, it shows the floor map of the induction electrode of traditional capacitive induction contact panel, and induction electrode comprises a plurality of X axle induction electrodes 10 and Y axle induction electrode 20.When signal scans a certain X axle induction electrode; Remaining X axle induction electrode and Y axle induction electrode be ground connection all; The Y axle induction electrode of the X axle induction electrode that this scans and all the other ground connection can produce capacitor C x-y, but when there is finger touches this X axle induction electrode that scans top, then except meeting detects capacitor C x-y; Also can detect the capacitor C x-f that is produced between the X axle induction electrode that finger scans therewith; Therefore, through the analysis on the circuit, can learn the capacitance variations that this X axle induction electrode takes place.In like manner, when detecting Y axle induction electrode, can learn that also capacitance variations has taken place certain bar Y axle induction electrode, therefore, can orient a two-dimensional coordinate, judge the coordinate of finger.
Yet the capacitive induction contact panel can only be judged the coordinate of finger to capacitance variations, can't induction pressure.Therefore traditional contact panel is when input system software executing instruction (Enter); Must rely on finger to press twice at same position; And need the software auxiliary judgment; But if produce offset by twice, or time interval is oversize or too short, all is difficult for the execution command of judging that this finger requires.
Therefore, industry is needed a kind of contact panel badly, and it has the location sensing simultaneously and pushes sensing function, detects the execution command that finger requires, and the aperture opening ratio of panel is descended.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of contact panel and touch display device, and it has the location sensing simultaneously and pushes sensing function, detects the execution command that finger requires.
The present invention provides a kind of contact panel; Comprise: first substrate, have inside surface and outside surface, the location sensing structure is arranged on the inside surface or outside surface of first substrate; Second substrate and the first substrate subtend are provided with; And in the face of the inside surface of first substrate, a plurality of sensing structures of pushing are arranged between first substrate and second substrate, and signal connecting line all sensing structures of pushing of connecting.
In addition, the present invention provides a kind of touch display device again, comprising: first substrate; Have inside surface and outside surface, the location sensing structure is arranged on the inside surface or outside surface of first substrate, and second substrate and the first substrate subtend are provided with; And inside surface in the face of first substrate; A plurality of sensing structures of pushing are arranged between first substrate and second substrate, and signal connecting line series connection is all pushes sensing structure, and display module is in order to show image.
Touch display device of the present invention also comprises an integrated circuit, electrically connects signal connecting line and display element, and wherein integrated circuit receives the command signal from signal connecting line, to judge show image.
Description of drawings
Fig. 1 shows the floor map of the induction electrode of traditional capacitance type touch-control panel;
Fig. 2 A shows according to one embodiment of the invention, the diagrammatic cross-section of contact panel;
Fig. 2 B shows according to another embodiment of the present invention, the diagrammatic cross-section of contact panel;
Fig. 2 C shows another embodiment again according to the present invention, the diagrammatic cross-section of contact panel;
Fig. 3 shows according to one embodiment of the invention, the part plan synoptic diagram of contact panel;
Fig. 4 A shows according to one embodiment of the invention, the diagrammatic cross-section of the contact panel of each profile line 1-1 ', 2-2 ', 3-3 ' and 4-4 ' in Fig. 3;
Fig. 4 B shows according to another embodiment of the present invention, the diagrammatic cross-section of the contact panel of each profile line 1-1 ', 2-2 ', 3-3 ' and 4-4 ' in Fig. 3.
Wherein, Reference numeral:
10～X axle induction electrode, 20～Y axle induction electrode
30～inferior pixel 32～sensing sept
34～sensing platform, 36～sensing film transistor
37,38,39～signal sense wire, 40～integrated circuit
The inside surface of 100～the first substrate 100a～first substrate
The outside surface 102 of 100b～first substrate～location sensing structure
104～upward polaroid 106～color filter layers
107～main support structure 108～push sensing structure
109A～first auxiliary support structure the 109B～second auxiliary support structure
110～the second substrates 111～the 3rd substrate
112～following polaroid 114～signal connecting line
116～integrated circuit, 118～data line
120～control TFT 122～inferior pixel
124～insulation course, 126～the first transparency conducting layers
128～the first metal layer, 130～the first dielectric layers
140～semiconductor layer, 142～the second metal levels
144～the 3rd dielectric layers 145～the 3rd metal level
146～the second dielectric layers, 148～the second transparency conducting layers
P1～sensing spacing A1～first auxiliary compartment the distance
A2～second auxiliary compartment is apart from 150～sensing sept
152～the 3rd septs, 154～the second septs
156～the first septs, 158～sensing platform
160～the 3rd platforms, 162～the second platforms
164～the first platforms
Embodiment
The present invention provides a kind of location and contact panel of pushing sensing of having concurrently, sees also Fig. 2 A, and it shows the diagrammatic cross-section of the contact panel of one embodiment of the invention.At first, first substrate 100 is provided, it is a glass substrate for example, has inside surface 100a and outside surface 100b, and color filter layers 106 is set on inside surface 100a, and location sensing structure 102 is set on outside surface 100b.But the position that location sensing structure 102 sensing panels are touched, it can be a capacitance type sensing element as shown in Figure 1, the capacitance that is produced through the sensing finger contact surface plate is to judge position of touch.In addition; In another embodiment, location sensing structure 102 also can be a Photosensing Units (not illustrating), at X and Y direction two groups of optical transmitting sets and optical receiver is set respectively; The luminance difference that shield lights is produced when receiving finger touches through the sensing panel is to judge position of touch.
In addition, contact panel also has second substrate 110 and the 100 subtend settings of first substrate, and faces the inside surface 100a of first substrate 100.Second substrate 110 is a glass substrate for example, can form a plurality of thin film transistor (TFT)s and a plurality of strip electrode line (not shown) on it.Between first substrate 100 and second substrate 110, have a plurality of sensing structures 108 of pushing, arrange with array way, it can receive the electrical property difference that produces when pushing by the sensing contact panel, judges whereby whether the instruction that shows on the contact panel is carried out.In one embodiment, contact panel can be display panels, this moment liquid crystal layer with push sensing structure 108 and be arranged at in one deck structure.In addition, contact panel can also have a pair of polaroid 104 up and down and 112 folders are established first substrate 100 and second substrate 110, wherein goes up polaroid 104 contiguous first substrates 100, following polaroid 112 contiguous second substrates 110.
Then; See also Fig. 2 B; It shows the diagrammatic cross-section according to the contact panel of another embodiment of the present invention; The difference of Fig. 2 B and Fig. 2 A is to locate sensing structure 102 and is arranged on the inside surface 100a of first substrate 100, and color filter layers 106 is arranged at location sensing structure 102 and pushing between the sensing structure 108.
See also Fig. 2 C; It shows the diagrammatic cross-section of the contact panel of another embodiment again according to the present invention; The difference of Fig. 2 C and Fig. 2 A is to locate sensing structure 102 and is formed on the 3rd substrate 111; And the 3rd substrate 111 is arranged on the polaroid 104 with location sensing structure 102, and the 3rd substrate 111 for example is a glass substrate.
Then, see also Fig. 3, it shows the part plan synoptic diagram according to the contact panel of one embodiment of the invention.Contact panel has pixel 122 a plurality of times; In inferior pixel 122, has the sensing structure of pushing 108; Push sensing structure 108 and be not defined as the form of Fig. 3 at the configuration mode of each time pixel 122, one pixel 122 of can being separated by is provided with one and pushes sensing structure 108, perhaps also can adopt the alternate manner configuration to push sensing structure 108; For example; In each time pixel 122, all be provided with one and push sensing structure 108, or more than one the pixel 122 of being separated by be provided with one and push sensing structure 108, wherein push sensing structure 108 and in contact panel, arrange with array way.In the contact panel of one embodiment of the invention; Whole sensing structures 108 of pushing use a signal connecting line 114 to be cascaded; And be connected to integrated circuit 116; The shape of this signal connecting line 114 can be the continuous lines of pectination, netted or irregular trend, as long as can whole sensing structures 108 of pushing be cascaded.
In contact panel of the present invention; Also comprise the data line 118 that connects control TFT 120 on second substrate 110 (shown in Fig. 2 A); In one embodiment of this invention; Signal connecting line 114 laterally arranges with data line 118, and this moment, signal connecting line 114 can be with data line 118 by forming with one deck conductive layer.In another embodiment of the present invention, signal connecting line 114 can overlap with data line 118, is arranged on the data line 118, can avoid the aperture opening ratio of contact panel to reduce whereby, and this moment, signal connecting line 114 formed with the conductive layer of data line 118 by different layers.
Because the sensing structure 108 of pushing in the contact panel of the present invention all is cascaded; Therefore; When any position of contact panel receives when pushing, all can will push sensing signal transmission to integrated circuit 116 through signal connecting line 114, whether carry out to judge the instruction that shows in the contact panel.In addition; 102 of location sensing structures in the contact panel of the present invention can be judged position of touch; Therefore, contact panel of the present invention does not need the extra less sensing structure 108 of pushing of sensing film transistor AND gate that is provided with to connect, and can avoid the aperture opening ratio of contact panel to reduce whereby.
In addition, in each time pixel 122 of contact panel, also be respectively arranged with main support structure 107 and auxiliary support structure 109A and 109B, these supporting constructions 107,109A and 109B can with push sensing structure 108 and be separately positioned in the different inferior pixels 122.
Then, see also Fig. 4 A, it shows according to one embodiment of the invention, and the diagrammatic cross-section of the contact panel of four profile line 1-1 ', 2-2 ', 3-3 ' and 4-4 ' in Fig. 3 is respectively shown in regional A, B, C and D among Fig. 4 A.Pushing sensing structure 108 arranges with array way; Each pushes the diagrammatic cross-section of sensing structure 108 shown in the region D among Fig. 4 A; It comprises sensing sept 150 and is arranged on first substrate 100; Can have color filter layers 106 and insulation course 124 on first substrate 100, sensing sept 150 can be arranged on the insulation course 124 or on the color filter layers 106.In addition; Pushing sensing structure 108 also comprises sensing platform 158 and is arranged on second substrate 110; Sensing platform 158 is made up of the first metal layer 128, first dielectric layer 130, second metal level 142 and 146 of second dielectric layers usually, perhaps also can be arranged in a combination by other material or difference.
In addition; On sensing sept 150 and sensing platform 158, also have first transparency conducting layer 126 and second transparency conducting layer 148 respectively; First transparency conducting layer 126 and second transparency conducting layer 148 for example are indium tin oxide (indium tin oxide is called for short ITO).Do not receive when pushing in contact panel; Have a sensing spacing P1 between first transparency conducting layer 126 on the sensing sept 150 and second transparency conducting layer 148 on the sensing platform 158, when contact panel receives when pushing, first transparency conducting layer 126 and second transparency conducting layer 148 contact with each other; Sensing signal is pushed in generation; Transmit a command signal to integrated circuit 116 for example for curtage changes, and through signal connecting line 114, judge required show image for integrated circuit 116.
In addition; Except pushing sensing structure 108, also comprise main support structure 107 and auxiliary support structure 109A and 109B in the contact panel of the present invention, have the sept and the platform of other differing heights respectively; With push sensing structure 108 and be arranged at in one deck structure; So that spacing fixing between first substrate 100 and second substrate 110 to be provided, perhaps, when pushing, be destroyed to avoid pushing sensing structure 108 as the buffer structure of pushing sensing structure 108.The diagrammatic cross-section of main support structure 107 is shown in the regional A among Fig. 4 A, and it comprises first sept 156 and first platform 164, both subtend settings and be formed at first substrate 100 respectively and second substrate 110 on.First sept 156 and first platform 164 do not receive when pushing in contact panel and contacting with each other, so that spacing fixing between first substrate 100 and second substrate 110 to be provided.First platform 164 can be made up of the first metal layer 128, first dielectric layer 130, semiconductor layer 140, second metal level 142 and the 3rd dielectric layer 144 and 146 of second dielectric layers; In addition; On first platform 164, also can have second transparency conducting layer 148, but first transparency conducting layer 126 then cannot be arranged on first sept 156.In another embodiment, first sept 156 can be designed to identical height with sensing sept 150, forms sensing spacing P1 by the difference in height of first platform 164 and sensing platform 158.
According to one embodiment of the invention; Can also have second sept 154 and second platform 162 in the contact panel; Be arranged at in one deck structure with pushing sensing structure 108, with as the first auxiliary support structure 109A, its diagrammatic cross-section is shown in the area B among Fig. 4 A.Second sept 154 and second platform 162 do not receive in contact panel has first auxiliary compartment apart from A1 when pushing; First auxiliary compartment apart from A1 less than sensing spacing P1; It can be used as the buffer structure of pushing sensing structure 108, and protection is pushed sensing structure 108 and is destroyed in pushing Shi Buhui.The height of second sept 154 of the first auxiliary support structure 109A can be identical with first sept 156, and the height of second platform 162 is less than first platform 164.Second platform 162 is made up of the first metal layer 128, first dielectric layer 130, second metal level 142 and 146 of second dielectric layers, and on second sept 154 and second platform 162, does not have transparency conducting layer.
According to another embodiment of the present invention; Can also have the 3rd sept 152 and the 3rd platform 160 in the contact panel; Be arranged at in one deck structure with pushing sensing structure 108, with as the second auxiliary support structure 109B, its diagrammatic cross-section is shown in the zone C among Fig. 4 A.The 3rd sept 152 and the 3rd platform 160 do not receive in contact panel has second auxiliary compartment apart from A2 when pushing, greater than sensing spacing P1, it is same as the buffer structure of pushing sensing structure 108, pushes sensing structure 108 with protection apart from A2 for second auxiliary compartment.The height of the 3rd sept 152 can be identical with sensing sept 150, and the height of the 3rd platform 160 is less than sensing platform 158.The 3rd platform 160 is made up of first dielectric layer 130, second metal level 142 and 146 of second dielectric layers, and can not have transparency conducting layer on the 3rd platform 160.
Above-mentioned sensing sept 150, first sept 156, second sept 154 and the 3rd sept 152 can be sensing optical activity sept (photo spacer).In addition; In contact panel of the present invention; Except sensing sept 150, sensing platform 158, first sept 156 and first platform 164 must be provided with; Other sept and platform can optionally be provided with, and also demand and adjusting according to circumstances of the distribution density of sensing sept and other sept and configuration.
See also Fig. 4 B, it shows according to another embodiment of the present invention, and the diagrammatic cross-section of the contact panel of four profile line 1-1 ', 2-2 ', 3-3 ' and 4-4 ' in Fig. 3 is respectively shown in regional A, B, C and D among Fig. 4 B.The difference of Fig. 4 B and Fig. 4 A is to be provided with the 3rd metal level 145 between first dielectric layer 130 and second dielectric layer 146 in sensing platform 158, second platform 162 and the 3rd platform; Signal connecting line 114 (as shown in Figure 3) is formed by 145 of the 3rd metal levels; Data line 118 (as shown in Figure 3) then is to be formed by 142 of second metal levels, and therefore, signal connecting line 114 can overlap with data line 118; And be arranged on the data line 118, to promote the aperture opening ratio of contact panel.
In addition, in one embodiment of this invention, the present invention provides a touch display device to comprise above-mentioned contact panel.Comprise a display element in the contact panel; This display element is electrically connected to integrated circuit 116; Can receive signal from integrated circuit 116 with show image; Display element for example is electrophoresis (electrophoretic) display element, Organic Light Emitting Diode display element or liquid crystal display cells, and it is arranged between first substrate 100 and second substrate 110 usually, to form electrophoresis showed apparatus, organic light emitting diode display device or LCD device.Integrated circuit 116 electrically connects signal connecting line 114 and display element, and the command signal that integrated circuit 116 receives from signal connecting line 114 is to judge the follow-up image that needs demonstration.Integrated circuit 116 can independently receive the command signal of signal connecting line 114, also can be integrated in the display control circuit, to dwindle the volume of control circuit.
The present invention is provided with a plurality of sensing structures of pushing between first substrate and second substrate; Utilize signal connecting line series connection all push sensing structure; Through combining with the location sensing structure on first substrate, can directly detect and push command signal, whether import execution command to judge the user; Can judge user's instruction more accurately, reduce the problem that the instruction misjudgment makes the mistake and does.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (21)
1. a contact panel is characterized in that, comprising:
One first substrate has an inside surface and an outside surface;
One location sensing structure is arranged on this inside surface or this outside surface of this first substrate;
One second substrate is provided with this first substrate subtend, and faces this inside surface of this first substrate;
A plurality of sensing structures of pushing are arranged with array way, are arranged between this first substrate and this second substrate; And
One signal connecting line, those of all array way arrangements of connecting are pushed sensing structure, to export a command signal, wherein, judge a position of touch through this location sensing structure, push sensing structure through those and judge whether this command signal is carried out.
2. contact panel according to claim 1 is characterized in that, this location sensing structure is arranged on this outside surface of this first substrate.
3. contact panel according to claim 1 is characterized in that, also comprises a color filter layers, is arranged on this inside surface of this first substrate.
4. contact panel according to claim 3 is characterized in that, this location sensing structure is arranged on this inside surface of this first substrate, and between this first substrate and this color filter layers.
5. contact panel according to claim 1 is characterized in that, comprises that also a pair of upper and lower polaroid folder establishes this first substrate and this second substrate, and polaroid is close to this first substrate this on, and this time polaroid is close to this second substrate.
6. contact panel according to claim 5 is characterized in that, this location sensing structure is arranged on one the 3rd substrate, and this location sensing structure and the 3rd substrate are arranged on this on polaroid.
7. contact panel according to claim 1 is characterized in that, the shape of this signal connecting line comprises the continuous lines of pectination, netted or irregular trend.
8. contact panel according to claim 1 is characterized in that this signal connecting line is parallel with a data line.
9. contact panel according to claim 1 is characterized in that, this signal connecting line and a data line overlap, and are arranged on this data line.
10. contact panel according to claim 1 is characterized in that, this is pushed sensing structure and comprises:
One sensing sept;
One sensing platform is arranged under this sensing sept;
One first transparency conducting layer is provided with on this sensing sept, and in the face of this sensing platform; And
One second transparency conducting layer is arranged on this sensing platform,
Wherein, this first transparency conducting layer and this second transparency conducting layer have a sensing spacing when not pushing.
11. contact panel according to claim 10; It is characterized in that; Also comprise one first sept and one first platform subtend setting; And this first sept and this first platform and this are pushed sensing structure and are arranged in one deck structure, wherein do not have this first transparency conducting layer on this first sept, and this first sept and this first platform do not contact with each other when pushing.
12. contact panel according to claim 11; It is characterized in that; Also comprise one second sept and one second platform subtend setting, and this second sept and this second platform and this push sensing structure and be arranged in one deck structure, wherein do not have this first transparency conducting layer on this second sept; And this second sept and this second platform have one first auxiliary compartment distance when not pushing, and this first auxiliary compartment distance is less than this sensing spacing.
13. contact panel according to claim 12 is characterized in that, the height of this second sept is identical with this first sept, and the height of this second platform is less than this first platform.
14. contact panel according to claim 11; It is characterized in that; Also comprise one the 3rd sept and one the 3rd platform subtend setting, and the 3rd sept and the 3rd platform and this push sensing structure and be arranged in one deck structure, wherein do not have this second transparency conducting layer on the 3rd platform; And the 3rd sept and the 3rd platform have one second auxiliary compartment distance when not pushing, and this second auxiliary compartment distance is greater than this sensing spacing.
15. contact panel according to claim 14 is characterized in that, the height of the 3rd sept is identical with this sensing sept, and the height of the 3rd platform is identical less than this sensing platform.
16. contact panel according to claim 1 is characterized in that, also comprises a liquid crystal layer, is arranged between this first substrate and this second substrate.
17. contact panel according to claim 1 is characterized in that, it does not have a sensing film transistor AND gate, and this pushes the sensing structure connection.
18. contact panel according to claim 1 is characterized in that, this location sensing structure comprises a capacitance type sensing element or a Photosensing Units.
19. a touch display device is characterized in that, comprising:
One first substrate has an inside surface and an outside surface;
One location sensing structure is arranged on this inside surface or this outside surface of this first substrate;
One second substrate is provided with this first substrate subtend, and faces this inside surface of this first substrate;
A plurality of sensing structures of pushing are arranged with array way, are arranged between this first substrate and this second substrate;
One signal connecting line, those of all array way arrangements of connecting are pushed sensing structure, to export a command signal, wherein, judge a position of touch through this location sensing structure, push sensing structure through those and judge whether this command signal is carried out; And
One display element is arranged between this first substrate and this second substrate, in order to show image.
20. touch display device according to claim 19 is characterized in that, this display element comprises an electrophoretic display device, an Organic Light Emitting Diode display element or a liquid crystal display cells.
21. touch display device according to claim 19 is characterized in that, also comprises an integrated circuit, electrically connects this signal connecting line and this display element, this integrated circuit receives this command signal from this signal connecting line, to judge show image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910209174A CN101673157B (en) | 2009-10-28 | 2009-10-28 | Touch panel and touch display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910209174A CN101673157B (en) | 2009-10-28 | 2009-10-28 | Touch panel and touch display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101673157A CN101673157A (en) | 2010-03-17 |
| CN101673157B true CN101673157B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910209174A Expired - Fee Related CN101673157B (en) | 2009-10-28 | 2009-10-28 | Touch panel and touch display device |
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| CN (1) | CN101673157B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI448941B (en) * | 2012-05-22 | 2014-08-11 | Hongkong Dongshan Prec Union Opoelectronic Co Ltd | Single side multi - touch panel and its manufacturing method |
| TWI490837B (en) * | 2012-10-19 | 2015-07-01 | 啟耀光電股份有限公司 | Display apparatus |
| CN105117058B (en) * | 2015-08-24 | 2018-07-06 | 联想(北京)有限公司 | A kind of touch panel, touch-control display panel and electronic equipment |
| CN107342308B (en) * | 2017-06-30 | 2019-12-17 | 上海天马微电子有限公司 | Organic light-emitting display panel and electronic equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441537A (en) * | 2008-12-18 | 2009-05-27 | 友达光电股份有限公司 | Touch control display panel |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441537A (en) * | 2008-12-18 | 2009-05-27 | 友达光电股份有限公司 | Touch control display panel |
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| CN101673157A (en) | 2010-03-17 |
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Granted publication date: 20121003 Termination date: 20201028 |