CN101251782B - Touching control panel and display using the same - Google Patents

Touching control panel and display using the same Download PDF

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Publication number
CN101251782B
CN101251782B CN2008100860500A CN200810086050A CN101251782B CN 101251782 B CN101251782 B CN 101251782B CN 2008100860500 A CN2008100860500 A CN 2008100860500A CN 200810086050 A CN200810086050 A CN 200810086050A CN 101251782 B CN101251782 B CN 101251782B
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block
substrate
touch panel
electrode
display
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CN101251782A (en
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刘中伟
蔡蔚珍
王世育
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AU Optronics Corp
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AU Optronics Corp
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Abstract

The present invention relates to a touch control panel and a display using the same. The touch control panel comprises a first substrate comprising a first block and a second block, a first electrodepositioned on the first substrate, a second substrate arranged relative to the first substrate, a second electrode positioned on the second substrate, and a sealing member substantially positioned onthe circumference of the first substrate and connected with the first substrate and the second substrate, wherein at least one part of the second block is substantially positioned between a display region and the sealing member, and the thickness of the second block is less than the thickness of the first block. The purpose of the touch control panel is to enhance the sensitivity of the touch control panel and to enhance the sensitivity of the position where the touch control panel is closely adjacent to the sealing member.

Description

A kind of contact panel and use its display
Technical field
The invention relates to a kind of touch panel and use its display, particularly a kind of display that has the touch panel of higher touch-control sensitivity and use it.
Background technology
In the market of various consumption electronic products now, portable electronic products such as PDA(Personal Digital Assistant), mobile phone (mobile phone), satellite navigation system (GPA) and digital audio-video player use touch panel (touch panel) to link up the interface as people's machine data widely.Because it is compact that the design of consumption electronic products is at present stressed, in product design, wish can save traditional input medias such as the button that takes up space and slide-mouse, and the employing touch control manner is imported, so touch panel has become one of spare part of key.
Please refer to Figure 1A and Figure 1B, Figure 1A is the last diagrammatic sketch of known touch-sensitive display, is to be example with electric resistance touch-control formula display at this.Figure 1B is the sectional view of the known touch-sensitive display of Figure 1A along profile line I-I '.Shown in Figure 1B, touch-sensitive display 1 comprises touch panel 10, display panel 12 and the flexible electric circuit board 14 that connects touch panel 10 and display panels 12.Known touch panel 10 is to be arranged on the display panels 12, by joint glue 11 touch panel 10 and display panels 12 is bonded.Touch panel 10 comprises that substrate of glass 101,102, top electrode 103 are arranged at that substrate of glass 101 upper and lower electrodes 104 are arranged on the substrate of glass 102, seal 109 with substrate of glass 101,102 be joined together, be filled with between the substrate of glass 101,102 liquid crystal layer 108 or other transparent filling materials, electric-conductor 105 is connected with bottom electrode 104.Display panels 12 comprises that substrate of glass 121,122, seal 123 engage substrate of glass 121,122, substrate of glass 121,122 is filled with liquid crystal layer 124, and has more a plurality of separation materials 125 between the substrate of glass 121,122 and support substrate of glass 121,122 to make it have fixing and suitable spacing.
When finger 13 or other instruments of exerting pressure when pushing the substrate of glass 101 of touch panel 10, the top electrode 103 of depressed position correspondence can contact bottom electrode 104, so can induce the coordinate points of depressed position, afterwards, just can carry out data processing according to this coordinate points and produce follow-up required picture by flexible electric circuit board 14 and control system (not illustrating) in display panels 12.
But when pushing touch panel 10, shown in Figure 1A and Figure 1B, because the area B 1 of the substrate of glass 101 of the seal 109 after next-door neighbour's sclerosis is difficult to distortion than the area B that is positioned at the center 2 of substrate of glass 101, so the sensitivity of area B 1 is relatively poor, touch-sensitive display 1 must impose bigger strength and push or can't respond at all, so can't normal operation influence its quality and usefulness.
Summary of the invention
The present invention provides a kind of touch panel, and this touch panel has preferable sensitivity.
The present invention provides a kind of touch panel, and the substrate of this touch panel has first block and second block, and between viewing area and seal, the thickness of this second block is the thickness less than this first block at least one part of second block substantially.
The present invention provides a kind of display, the substrate of the touch panel of this display has first block and second block, between viewing area and seal, the thickness of this second block is the thickness less than this first block at least one part of second block substantially.
The objective of the invention is touch panel, to strengthen the sensitivity of touch panel in order to utilize embodiments of the invention to provide.
The objective of the invention is touch panel, with the sensitivity at next-door neighbour's seal place of strengthening touch panel in order to utilize embodiments of the invention to provide.
The objective of the invention is display, to strengthen the sensitivity of touch panel in order to utilize embodiments of the invention to provide.
The objective of the invention is display, with the sensitivity at next-door neighbour's seal place of strengthening touch panel in order to utilize embodiments of the invention to provide.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Figure 1A is the vertical view of known touch-sensitive display;
Figure 1B is the sectional view of the touch-sensitive display drawn along profile line I-I ' for the touch-sensitive display of Figure 1A;
Fig. 2 is the existing touch panel for being used to test;
Fig. 3 A is the vertical view of the touch-sensitive display of the first embodiment of the present invention;
Fig. 3 B is the sectional view of the touch-sensitive display drawn along profile line II-II ' for the touch-sensitive display of Fig. 3 A;
Fig. 3 C is pointing with the local enlarged diagram of the normal application of force by the area B of depressing 1 for the touch-sensitive display of Fig. 3 B;
Fig. 4 is the sectional view for the touch-sensitive display of the second embodiment of the present invention; And
Fig. 5 is the sectional view for the touch-sensitive display of the third embodiment of the present invention of the present invention.
Drawing reference numeral
1,3,4,5 touch-sensitive displays
10,20,30 touch panels
101,301,401,501 substrates
102,302,402,502 substrates
103,303,403,503 top electrodes
104,304,404,504 bottom electrodes
105,305 electric-conductors
108,308,408,508 liquid crystal layers
109,209,309,409,509 seals
11,31 joint glues
12,32 display panels
121,321 substrates
122,322 substrates
123,323 seals
124,324 liquid crystal layers
125,325 separation materials
13,33,43,53 fingers
14,34 circuit boards
3011,4011,5,011 first blocks
3012,4012,5,012 second blocks
410,510 active cell arrays
411,511 sensing pads
420,520 insulation courses
430,530 light shield layers
44,54 main gap things
45,55 auxiliary air gap things
46,56 projectioies
5013 the 3rd blocks
Embodiment
Please earlier with reference to Fig. 2 and table one, Fig. 2 is the existing touch panel that is used to test, table one show corresponding to the position, 9 place of the touch panel 20 of Fig. 2 with and the corresponding required application of force with induction information.
The position 1 2 3 4 5 6 7 8 9 On average
The application of force (gram) 27 23 27 17 21 48 23 24 31 27
As shown in Table 1; effective application of force that the position 1,3,6 at next-door neighbour's seal 209 places and 9 places need provide is respectively 27,27,48 and 31 grams; greater than other positions; so what can know is; if the position at next-door neighbour's seal 209 places can be answered by sense of contact force, the bigger application of force must be provided, that is to say; there is the possibility of can't normal or weak sense of contact force answering the position at next-door neighbour seal 209 places.So when the time at operation touch panel 20, if need, when the next-door neighbour seal 209 places carries out application of force induction, must note more, the bigger application of force is provided or checks additionally whether induced signal is normal, so influence the usefulness of operation convenience and touch panel 20.
The detailed member of display of the present invention and is equipped with diagram and describes in detail shown in following literal.
First embodiment:
Please refer to Fig. 3 A and Fig. 3 B, Fig. 3 A is the vertical view of the display of one embodiment of the invention; Fig. 3 B is the sectional view of the first embodiment of the present invention of the display drawn along profile line II-II ' for the display of Fig. 3 A.
Shown in Fig. 3 B, touch-sensitive display 3 comprises touch panel 30, display panels 32 and the circuit board 34 that connects touch panel 30 and display panels 32, and circuit board 34 can be flexible electric circuit board for example.Touch panel 30 is to be arranged on the display panels 32, by joint glue 31 touch panel 30 and display panels 32 is joined together.
Touch panel 30 comprises that substrate 301,302, top electrode 303 are arranged at that substrate 301 upper and lower electrodes 304 are arranged in the substrate 302, seal 309 with substrate 301,302 be joined together, be filled with between the substrate 301,302 liquid crystal layer 108 or other transparent filling materials, electric-conductor 305 is connected with bottom electrode 304.The material of substrate 301,302 is exemplified as glass or quartz, the material of upper/lower electrode 303,304 is exemplified as transparent conductive material, for example be tin indium oxide or indium zinc oxide, upper/lower electrode 303,304 defines a viewing area AA, and the material of seal 309 is exemplified as optic-solidified adhesive or heat-curable glue.Substrate 301 comprises first block 3011 and second block 3012, first block 3011 by second block 3012 around, between viewing area AA and sealing part 309, the thickness of second block 3012 is the thickness less than first block 3011 at least one part of second block 3012 substantially.For example, the thickness of second block 3012 is about the thickness 60% to 80% of first block 3011, is preferably 65% to 75%.The limit of the seal 309 and first block 3011 be approximately 1 millimeter to 1.5 millimeters apart from d1, be preferably 1.2 millimeters to 1.5 millimeters.
Display panels 32 comprises that substrate 321,322, seal 323 engage substrate 321,322, substrate 321,322 is filled with liquid crystal layer 324, and has more a plurality of separation materials 325 between the substrate 321,322 and support substrates 321,322 to make it have fixing and suitable spacing.
Fig. 3 C is that touch-sensitive display 3 is pointing 33 with the local enlarged diagram of the normal application of force by the area B of depressing 1.As shown in the figure, because the thickness of second block 3012 is littler than the thickness of first block 3011, so its deformability is bigger, the seal 309 after even if the next-door neighbour is solidified, touch panel 30 still can be responded under the general application of force smoothly, in other words, top electrode 303 can contact smoothly with bottom electrode 304.
Second embodiment:
Please refer to Fig. 4, Fig. 4 is the touch-sensitive display sectional view of the second embodiment of the present invention.
Different with first embodiment is that touch-sensitive display 4 is integrated touch panel and display panels, so the touch-sensitive display 3 than first embodiment is thin and light on its thickness and the weight.
Touch-sensitive display 4 comprises that substrate 401 and 402, top electrode 403 are arranged at that substrate 401 upper and lower electrodes 404 are arranged in the substrate 402, seal 409 is joined together substrate 401,402, be filled with liquid crystal layer 408 between the substrate 401,402.The material of substrate 401,402 is exemplified as glass or quartz, and the material of upper/lower electrode 403,404 is exemplified as transparent conductive material, for example is tin indium oxide or indium zinc oxide, and the material of seal 409 is exemplified as optic-solidified adhesive or heat-curable glue.
Colorful optical filter array is between substrate 401 and top electrode 403, colorful optical filter array comprises light shield layer 430 and the resistance of a plurality of look, a plurality of look resistances are exemplified as red color resistance R, green look resistance G, blue look resistance B or the like, and light shield layer 430 is substantially between adjacent look resistance.Insulation course 420 is formed on the colorful optical filter array, and insulation course 420 is to be organic material for example, a plurality of protruding 46 and top electrode 403 be to be formed on the insulation course 420, top electrode 403 is to be formed on a plurality of protruding 46.Separation material is to comprise that a plurality of main gap things 44 and a plurality of auxiliary air gap thing 45 make it have fixing and suitable spacing in order to support substrate 401,402 between upper/lower electrode 403,404.For example, the ratio number of auxiliary air gap thing 45 is the ratio numbers greater than projection 46, and the ratio number of projection 46 is the ratio numbers greater than main gap thing 44.
Active cell array 410 is between substrate 402 and bottom electrode 404, active cell array 410 is to be thin film transistor (TFT) array for example, a plurality of sensing pads 411 are formed on the active cell array 410 or are integrated in the active cell array 410, and bottom electrode 404 is to be formed on a plurality of sensing pads 411.Liquid crystal layer 408 is between top electrode 403 and bottom electrode 404.
Substrate 401 comprises first block 4011 and second block 4012, first block 4011 by second block 4012 around, between viewing area AA and seal 409, the thickness of second block 4012 is the thickness less than first block 4011 at least one part of second block 4012 substantially.For example, the thickness of second block 4012 be about first block 4011 thickness 60% to 80%, be preferably 65% to 75%.The limit of the seal 409 and first block 4011 be approximately 1 millimeter to 1.5 millimeters apart from d1, be preferably 1.2 millimeters to 1.5 millimeters.Projection 46 is approximately 500 microns to 600 microns with the minor increment d2 on the limit of this first block 4011.
When finger 43 or other instruments of exerting pressure when the induction zone of touch-sensitive display 4 is exerted pressure, because the thickness of second block 4012 is littler than the thickness of first block 4011, so its deformability is bigger, the seal 409 after even if the next-door neighbour is solidified, touch-sensitive display 4 still can be responded under the general application of force smoothly, that is to say that substrate 401 compressive deformations make the top electrode 403 on the projection 46 of ad-hoc location contact with bottom electrode 404, just can respond to the force application location coordinate, touch-sensitive display 4 just successfully shows follow-up required image then.
The 3rd embodiment:
Please refer to Fig. 5, Fig. 5 is the touch-sensitive display sectional view of the third embodiment of the present invention.
Different with first embodiment is that touch-sensitive display 5 is integrated touch panel and display panels, so the touch-sensitive display 3 than first embodiment is thin and light on its thickness and the weight.
Touch-sensitive display 5 comprises that substrate 501 and 502, top electrode 503 are arranged at that substrate 501 upper and lower electrodes 504 are arranged in the substrate 502, seal 509 is joined together substrate 501,502, be filled with liquid crystal layer 508 between the substrate 501,502.The material of substrate 501,502 is exemplified as glass or quartz, and the material of upper/lower electrode 503,504 is exemplified as transparent conductive material, for example is tin indium oxide or indium zinc oxide, and the material of seal 509 is exemplified as optic-solidified adhesive or heat-curable glue.
Colorful optical filter array is between substrate 501 and top electrode 503, colorful optical filter array comprises light shield layer 530 and the resistance of a plurality of look, a plurality of look resistances are exemplified as red color resistance R, green look resistance G, blue look resistance B or the like, and light shield layer 530 is substantially between adjacent look resistance.Insulation course 520 is formed on the colorful optical filter array, and insulation course 420 is to be organic material for example, a plurality of protruding 56 and top electrode 503 be to be formed on the insulation course 520, top electrode 503 is to be formed on a plurality of protruding 56.Separation material is to comprise that a plurality of main gap things 54 and a plurality of auxiliary air gap thing 55 make it have fixing and suitable spacing in order to support substrate 501,502 between upper/lower electrode 503,504.For example, the ratio number of auxiliary air gap thing 55 is the ratio numbers greater than projection 56, and the ratio number of projection 56 is the ratio numbers greater than main gap thing 54.
Active cell array 510 is between substrate 502 and bottom electrode 504, active cell array 510 is to be thin film transistor (TFT) array for example, a plurality of sensing pads 511 are formed on the active cell array 510 or are integrated in the active cell array 510, and bottom electrode 504 is to be formed on a plurality of sensing pads 511.Liquid crystal layer 508 is between top electrode 503 and bottom electrode 504.
Substrate 501 comprises first block 5011, second block 5012 and the 3rd block 5013, first block 5011 by second block 5012 around, second block 5012 by the 3rd block 5013 around, between viewing area AA and sealing part 509, seal 509 is positioned on the 3rd block 5,013 second block 5012 substantially.The thickness of second block 5012 is the thickness less than first block 5011, for example, the thickness of second block 5012 be about first block 5011 thickness 60% to 80%, be preferably 65% to 75%.The limit of the seal 509 and first block 5011 be approximately 1 millimeter to 1.5 millimeters apart from d1, be preferably 1.2 millimeters to 1.5 millimeters.The thickness of the 3rd block 5013 is less than or equal to the thickness of first block 5011 approximately.
When finger 53 or other instruments of exerting pressure when the induction zone of touch-sensitive display 5 is exerted pressure, because the thickness of second block 5012 is littler than the thickness of first block 5011 and the 3rd block 5013, so its deformability is bigger, the seal 509 after even if the next-door neighbour is solidified, touch-sensitive display 5 still can be responded under the general application of force smoothly, that is to say that substrate 501 compressive deformations make the top electrode 503 on the projection 56 of ad-hoc location contact with bottom electrode 504, just can respond to the force application location coordinate, touch-sensitive display 5 just successfully shows follow-up required image then.
In sum, the present invention is mainly providing a touch panel and display, utilization has the substrate of at least two kinds of different-thickness, the thinner thickness of the bases of next-door neighbour's seal, can make the sensitivity in this district be able to rough identical with the sensitivity in other districts, so when carrying out the operation of touch panel or display, push just with the application of force much at one and can complete successfully sensing step, thus, the usefulness of panel or display just can also have preferable performance with lifting and user's ease of use and stability.
Though the present invention discloses as above with preferred 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 can doing a little change and retouching, so protection scope of the present invention attached claim person of defining before looking is as the criterion.

Claims (10)

1. a touch panel is characterized in that, this touch panel comprises:
One first substrate comprises one first block and one second block;
One first electrode is positioned in this first substrate;
One second substrate is oppositely arranged with this first substrate;
One second electrode is positioned in this second substrate, and wherein said first electrode and this second electrode definition go out a viewing area, and wherein this first block is positioned at this viewing area; And
One seal, be positioned at the described first substrate periphery, and engage described first substrate and described second substrate, at least one part of wherein said second block is between described viewing area and sealing part, and the thickness of described second block is the thickness less than described first block.
2. touch panel as claimed in claim 1 is characterized in that, the thickness of described second block be described first block thickness 60% to 80%.
3. touch panel as claimed in claim 1, it is characterized in that, described first substrate more comprises one the 3rd block, described second block is between described first block and described the 3rd block, the thickness of described the 3rd block is approximately equal to or less than the thickness of described first block, and wherein said seal is to be positioned on described the 3rd block.
4. touch panel as claimed in claim 1 is characterized in that, described seal is to be positioned on this second block.
5. touch panel as claimed in claim 1 is characterized in that, this touch panel more comprises:
One liquid crystal layer is between described first electrode and described second electrode;
A plurality of separation materials are between described first electrode and described second electrode; And
At least one projection, be positioned on described first block of described first substrate, described first electrode is to be positioned on the described projection, wherein those separation materials are to comprise a plurality of main gap things and a plurality of auxiliary air gap thing, the ratio number of described auxiliary air gap thing is the ratio number greater than described projection, and the ratio number of described projection is the ratio number greater than described main gap thing.
6. touch panel as claimed in claim 1, it is characterized in that, this touch panel more comprises at least one projection, be positioned on described first block of described first substrate, described first electrode is to be positioned on the described projection, and the minor increment on the limit of wherein said projection and described first block is 500 microns to 600 microns.
7. touch panel as claimed in claim 1 is characterized in that, this touch panel more comprises:
One colorful optical filter array is between described first substrate and described first electrode;
One active cell array is between described second substrate and described second electrode; And
One liquid crystal layer is between described first electrode and described second electrode.
8. touch panel as claimed in claim 1 is characterized in that, described seal is not to be positioned on described first block, and the distance on the limit of described seal and described first block is 1 millimeter to 1.5 millimeters.
9. a display is characterized in that, this display comprises:
Touch panel as claimed in claim 1; And
One display panels is positioned at described touch panel below and electrically connects with described touch panel.
10. display as claimed in claim 9 is characterized in that, this display more comprises a circuit board between described touch panel and described display panels, in order to electrically connect described touch panel and described display panels.
CN2008100860500A 2008-03-14 2008-03-14 Touching control panel and display using the same Active CN101251782B (en)

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CN101251782B true CN101251782B (en) 2010-06-02

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101727225B (en) * 2008-10-31 2011-10-05 胜华科技股份有限公司 Touch panel and touch liquid crystal display
CN102566838B (en) * 2010-12-21 2016-10-26 上海天马微电子有限公司 Capacitive touch sensing device and touch display device
TWI451157B (en) * 2011-07-11 2014-09-01 Hannstar Display Corp Touch panel module and manufacturing method thereof
CN112015302B (en) * 2020-08-31 2022-09-13 厦门天马微电子有限公司 Display panel and display device

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