TWI344615B - A single layer of touch sensor structure and a touch display panel using the same - Google Patents

A single layer of touch sensor structure and a touch display panel using the same Download PDF

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Publication number
TWI344615B
TWI344615B TW96118476A TW96118476A TWI344615B TW I344615 B TWI344615 B TW I344615B TW 96118476 A TW96118476 A TW 96118476A TW 96118476 A TW96118476 A TW 96118476A TW I344615 B TWI344615 B TW I344615B
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Taiwan
Prior art keywords
layer
sensing
touch
conductive
substrate
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Application number
TW96118476A
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Chinese (zh)
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TW200846997A (en
Inventor
Yu Chou Yeh
Wei Hsuan Ho
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J Touch Corp
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Priority to TW96118476A priority Critical patent/TWI344615B/en
Publication of TW200846997A publication Critical patent/TW200846997A/en
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Publication of TWI344615B publication Critical patent/TWI344615B/en

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Description

IX. Description of the Invention: [Technical Field] The present invention relates to a sensing structure and a sensing structure for forming a plurality of singular capacitors on a single-layer conductive layer, and a difficult shape. a (4) [Prior Art] The touch panel originated from the art exhibition in the 1970s, and the technology of the era-shifted technology was transferred to the private use, and then the turn-in method of the power generation robbery was based on the keyboard or slide--the peripheral device as the input interface. 'However, these peripheral input devices are too large to be carried. It is easy to cause a thinning of electronic products. Because of the demand for thin electronic devices, touch panels are gradually becoming popular with consumers in the broadcastable electronic production. And the outcrop. In addition, in addition to the application of personal portable information products, the touch panel is also applied to the fields of information appliances, public information, communication equipment, office automation equipment, Bessie collection equipment, and industrial equipment. Therefore, the research and development of touch panels has gradually become the focus of the development of the electronics industry in recent years. I have 5 and 5, the principle of the touch panel can be divided into two types: resistive and capacitive. Most touch screens today are resistive. A transparent conductive circuit board made of indium tin oxide (IT0) is placed between two transparent thin layers such as polyethylene terephthalate (PET). Spacers are separated by a liquid crystal display (LCD) screen or other drawing device. When a finger is pressed to form a contact point, the touch position is recorded. This technique 丄J440丄:) Although simple, it still has the following disadvantages: the first - has a two-layer structure, so there is still a (four) "electric 1 touch & panel thickness of pi mm. Second, the technology: = If force: protect the curtain or reduce the reflection of the eff light transmission. Second, the hand-shadow effect (the hand-shadow. effect) also makes the sensor judge the error. ·, $ to solve the shortcomings of the resistive touch panel , Capacitive (four) surface ^ Technology research and development, it will gradually reveal the head of the j-control panel's panel when there is no contact, :== coffee. Then people have and there are "pass." When it comes into contact with the touch panel, the human body flows into the ground and generates a weak current. It can calculate the position of the contact, the current value changes, .US. Pat. No. 6, 961, 049 ^ if - „ , in Wu National Patent I. The main == guide; = paste structure circuit 1 The sensing line U ^ electric f plate 10 formed a sensing line % U 4c ± Pfr ^ ^ λι, month of indium tin oxide or It is composed of other conductive materials. Then, in the sensing line u V 12 ' finally, the adhesive layer layer 11 can pull the non-conductive substrate 13. The sensing electric field is provided by the circuit connection module 14. Electronic signal generation - reduction: the problem of the resistive touch panel and the use of the gentleman's eve * and thus a single-layer touch sensing structure to solve the conventional resistive touch panel with the generated display panel SUMMARY OF THE INVENTION An object of the present invention is to provide a single-layer touch sensing structure, which directly forms a plurality of trenches on an electrical layer material to brake the conductive layer material into a plurality of electrodes. So that any two adjacent electrodes can be made into a planar capacitor structure To simplify the design of the sensing structure and reduce the manufacturing cost. Another object of the invention is to provide a touch display panel, which is formed by forming a conductive layer having a plurality of planar electrodes and a display unit. A touch display panel is used to reduce the thickness of the touch display panel to increase the utilization of the field. In order to achieve the above object, the present invention provides a single-layer touch sensing block comprising a conductive layer 'having at least one sensing a block having a plurality of grooves on the sensation to divide the sensing block into a plurality of electrodes, and any two adjacent electrodes may be formed into a planar capacitor structure. The invention further improves the present invention. Providing a single-layer touch sensing library I* having a conductive layer 'having at least one sensing block, the plurality having a plurality of grooves' to divide the sensing block into three electrodes, any two adjacent The electrode between the electrodes can be formed into a planar capacitor structure. ^ ^ To achieve the above purpose, the present invention further provides a touch display surface, a block I: has; I! layer, which has at least a sensing block, the sensing electrode ,: two; the second groove of the second to divide the sensing block into a plurality of electrodes, a planar capacitor structure, a telecommunications line module, which is disposed on the conductive connection; The master is opened on the gans/s to power the plurality of electrodes (4). The temple 2 is coupled to the telecommunication line module, and the touch position is determined by the tens of thousands-to-two changes; and - not too early π' It is disposed below the conductive layer. ^ 1344615 [Embodiment] In order to enable the Beck Review Committee to make a better understanding of the features, objects, and functions of the present invention, the following is a detailed description of the device of the present invention. The concept of 邰, '·〇 以及 and 又 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 Schematic diagram of an embodiment of a single layer touch sensing structure. The single-layer touch sensing structure 2 includes a conductive layer 21, and has a plurality of sensing blocks 22, and the sensing block further has a plurality of 4 slots of the complex & A plurality of electrodes can be used as a planar capacitor structure. The single-layer touch sensing structure 2 of the present invention is characterized in that only the -layer conductive layer 21 can be used to complete the (four) power-on configuration. The wire portion 22 of the towel is formed through the remaining portion of the conductive layer 21. The conductive layer 21 may be a conductive polymer material or a transparent conductive oxide. The high-concentration conductive polymer may be polyethylidene ether thiophene (p〇ly(3,4-ethylenedi〇xyi:hiophene乂PED〇T); ft^ib^Ctransparent conductive oxides, TCO) may be indium oxide Tin (indiura tin oxide, _, antioxidant tin oxide (AT 〇) or zinc oxide ( 幻 〇 xide, .Z n 0), but not limited to this. In this embodiment the conductive layer 2 i is an indium tin oxide material. As shown in FIG. 2B, the figure is a schematic cross-sectional view of the sensing block of the present invention. In the cross-sectional view, it can be seen that an adjacent electrode 211 and 212 are formed between the two. The plane capacitance refers to the direction of the electric field in the direction of the 轴 axis in the figure. In addition, the conductive layer 21 can be formed on a substrate 2, which can be selected as a flexible substrate, such as a plastic substrate. However, it is not limited to 9 丄/44615 or a glass substrate. In addition, a protective layer 26 may be formed on the conductive layer 2i to prevent damage to the electrode structure or the trench in the sensing block 22. Returning to Figure 2A, on both sides of the conductive layer 21, that is, in the plurality of senses The two sides of the block 22 are respectively provided with telecommunication circuit modules 23 and 24, which are electrically connected to the electrodes in the plurality of sensing blocks 22 to provide electronic signals to the electrodes in the sensing block 22. In order to generate a uniform sensing electric field, a capacitive effect is formed between two adjacent electrodes. The telecommunication circuit modules 23 and 24 are further formed by a flip chip (chip 〇nf丨lm, C〇F) flexible circuit board 25 It is coupled with other external electronic components. As shown in FIG. 2A and FIG. 3β, the figure is a schematic diagram of an embodiment of a sensing block of the single-layer touch sensing structure of the present invention. The implementation of the three-layer touch sensing structure 3 has a plurality of sensing blocks 3:1 'only shown in the figure. The sensing block 31 is connected with the trench 3〇1 and the conductive layer 30. The conductive layer 30 and the sensing block 31, the groove 301 of the = can be used to engrave /, 301 on the conductive layer by means of a residual method. In addition, each of the sensing blocks 31 is A trench 32 having a function curve is formed on the electro-depositive layer 30 by means of characterization. The function curve of FIG. For the square wave curve, the sensing block 31 is divided into two electrode structures by the square wave 2, and the second electricity = the body m is electrically connected to the voltage source, respectively, so that the two electrodes, , , , , , 33 and 34 A parallel capacitance is formed between the functions. The function of the curve C3 indicates that the wave curve formed by the groove in the sensing block 31 is divided into two electrode structures 35 and 36 by the groove formed by the sine wave curve. = The tooth, the quoted square wave curve or the sine wave curve, the plurality of 1344615 desert grooves 37 can also form a triangular wave curve. Please refer to FIG. 3D, which is a schematic diagram of another embodiment of the single-layer touch sensing structure of the present invention. In the present embodiment, the sensing block 31 has a plurality of rectangular electrode structures 38: however, if the electrode structure 38 of FIG. 3D is capable of sensing the entire display area, a high density electrode distribution is required, but The electronic design of the 1fL is quite complicated, so this design can usually be applied to a simple touch-sensitive touch panel. Please refer to FIG. 4A and FIG. 4B, which are schematic diagrams of another preferred embodiment of the single layer touch sensing structure of the present invention. In this embodiment, the single-layer touch sensing structure 4 includes a conductive layer having at least a sensing block 4 and a plurality of trenches 42 on the sensing block 41. The sensing block is divided into three electrodes 410, 411 and 412, and any two adjacent electrodes can be formed into a planar capacitor structure. The plurality of trenches in the present embodiment form a triangular wave distribution to divide the sensing block into three electrodes 410, 411, and 412. Each of the electrodes 41 〇, 411, and 412 is connected to a voltage source to form a capacitor structure as shown in FIG. Referring to FIG. 5, the figure is not intended to be an embodiment of the touch display panel of the present invention. In this embodiment, the touch display panel 5 includes a conductive layer, a layer 50, a telecommunication line module 51, a control unit 52, and a display unit 53. The conductive layer 50 has at least one sensing block 5〇2, and the sensing block 502 has a plurality of grooves on the sensing block 502 to divide the sensing block. The electrode of the plurality of electrodes can be two-adjacent electrodes. The structure of the plane-capacitor structure β-conducting layer can be as shown in the above-mentioned Figures 2A, 3D to 3D, and Figure 4. The detailed technical features are as described herein and will not be described here. 1344615 In this embodiment, the conductive layer 50 is formed on a transparent substrate 501, and the transparent substrate 501 can be selected as a flexible substrate, such as a plastic substrate (but not limited thereto) or a glass substrate. The telecommunication circuit module 51 is disposed on the conductive layer 50 to be electrically connected to the plurality of electrodes. In this embodiment, the telecommunication circuit module 411 is formed on both sides of the plurality of sensing blocks 502 to provide an electronic signal to the electrodes in the sensing block 502 to generate a uniform electric field distribution. The control unit 52 is coupled to the telecommunication line module 51 to determine the touch position according to the change in capacitance of the sensing area 502. In this embodiment, the control unit 52 can be coupled to the telecommunication line module 51 by a flexible circuit board 503 of a chip-on-chip (COF), but not limited thereto. The display unit 53 is disposed under the conductive layer 50. The display unit 53 can be selected as one of a liquid crystal display unit and a light-emitting diode display unit, but is not limited thereto. In order to protect the conductive layer 50, a protective layer 54 may be formed over the conductive layer 50. However, the above is only an embodiment of the present invention, and the scope of the present invention cannot be limited thereto. It is to be understood that the scope of the present invention is not limited to the spirit and scope of the present invention, and should be considered as further implementation of the present invention. In combination with the above, the single-layer touch sensing structure and the use of the touch display panel of the present invention can solve the disadvantages of the conventional resistive type and the structure is simple and easy to manufacture, which can reduce the production cost, thus meeting the industry. The demand, and thus the competitiveness of the industry and the development of the surrounding industries, has met the requirements for applying for inventions as stipulated in the invention patent law. Therefore, the application for invention patents is submitted according to law. I would like to ask your review committee 12 1344615 « Allow time to review and grant patents as prayers.
13 1344615 ["Simple Description" Figure 1 is a schematic diagram of a capacitive touch panel used in the prior art. FIG. 2A is a schematic diagram of an embodiment of a single-layer touch sensing structure of the present invention. Figure 2 is a schematic cross-sectional view of the sensing block of the present invention. FIG. 3A to FIG. 3C are schematic diagrams showing an embodiment of a sensing block of the single-layer touch sensing structure of the present invention. Figure 3D is a schematic view of another embodiment of the single layer touch sensing structure of the present invention. 4A and FIG. 4B are schematic diagrams showing another preferred embodiment of the single-layer touch sensing structure of the present invention. FIG. 5 is a schematic diagram of an embodiment of a touch display panel of the present invention. [Main component symbol description] 10, 13-non-conductive substrate Π-sensing circuit 12 - viscous layer 14 - circuit connection module 2 - single-layer touch sensing structure 20 - substrate 21 - conductive layer 211, 212 - electrode 22- Sensing Block 23, 24 - Telecommunications Line Module 14 1344615 25- Flexible Circuit Board 26 - Protective Layer 3 - Single Layer Touch Sensing Structure 30 - Conductive Layer 301 - Trench 31 - Sensing Block 32 - Trench 33, 34, 35, 36, 38-electrode structure 37-trench 4 - single-layer touch sensing structure 40 - conductive layer 41 - sensing block 410, 411, 412 - electrode structure 42 - trench 5 - touch Display panel 50 - conductive layer 501 - transparent substrate 5 0 2 - sensing block 503 - flexible circuit board 51 - telecommunication line switching 52 - control unit 53 - display unit 54 - protective layer 15

Claims (1)

  1. ^44615 X. Patent Application Range: 1. A single-layer touch sensing structure includes a conductive layer having at least one sensing block, the sensing block having a plurality of grooves on the sensing block to sense the sensing The block is divided into a plurality of electrodes, and any two adjacent electrodes can be formed into a planar capacitor structure. 2. The single-layer touch sensing structure described in claim 1 of the patent scope is formed on a substrate. The single-layer touch sensing structure according to the second aspect of the patent application scope is a glass substrate. 4. The single layer touch sensing structure according to claim 2, wherein the substrate is a flexible substrate. Among them, the single phase control sensing structure described in item 4 of the patent application scope is 5* t, and the flexible substrate is a plastic substrate. The single-layer touch sensing structure according to the first aspect of the patent, wherein the conductive layer is a conductive polymer material layer. The single-layer touch sensing structure described in item 6 of the patent scope is pED〇T. 8. As described in claim J of the patent scope, the very snow. Dry a ' control sensing structure, I is made of a transparent conductive oxide layer. The oxide of the transparent conductive material described in item 8 of the patent application scope is the copper oxide i. In the first embodiment of the patent application, the first layer of the conductive layer has a layer 7 touch sensing structure, and the single layer touch sensing structure according to claim 1 is 16 1.344615, the groove system can form a function curve, one of the function curve system, / curve, two-angle curve and sine wave curve. A-type single-layer touch sensing structure includes a conductive layer and a block having a plurality of grooves on the sensing block, and dividing into three electrodes by a-«I α block, The electrodes between any two adjacent spaces can be formed into a planar capacitor structure. •: The single layer touched by the 12th item of the patent application scope is formed on a substrate. 14) The single-layer touch sensing structure according to claim 13 wherein the 5 hai substrate is a glass substrate. The single-layer touch sensing structure described in claim 13 of the patent application scope The substrate in the basin is a flexible substrate. /, 16 = the single-layer touch sensing structure described in the scope of the patent, and the flexible substrate is a plastic substrate. 17·=The single-layer touch sensing structure described in claim 12, wherein the conductive layer is a conductive polymer material layer. /, 1 〇 • The single layer described in claim 17 In the touch sensing structure, the conductive polymer material is PEDOT. The single-layer touch sensing structure described in claim 12 of the patent scope is a transparent conductive oxidation of the 5th conductive layer in the middle layer. The layer of the single layer touch sensing structure described in the 19th part of the patent application, wherein the transparent conductive oxide is indium tin oxide. ', ^ as claimed in the scope of 12 items The single-layer touch sensing structure described above has a protective layer above the conductive layer in i. 17 134461 5 22. The touch display panel comprises: a conductive layer having at least one sensing block, the sensing block having a plurality of grooves on the sensing block to divide the sensing block into a plurality of electrodes, any two The adjacent electrode can be a planar capacitor structure; a telecommunication circuit module is disposed on the conductive layer to electrically connect with the plurality of electrodes; and a control unit is coupled to the telecommunication circuit module Evenly, the touch position is determined according to the change of the capacitance on the sensing area; and the display unit is disposed under the conductive layer. 23. The touch display as described in claim 22 The illuminating layer is formed on a transparent substrate. The touch display panel according to claim 23, wherein the transparent substrate is a glass substrate. 25. The touch display panel of the present invention, the transparent substrate is a flexible substrate. The human touched display panel according to the scope of claim 25, wherein the flexible substrate is a -_ substrate. Ί玄27 The touch display panel of claim 22, wherein the conductive layer is a layer of conductive polymer material. 28. >, the touch display panel of claim 27 The conductive polymer material is PEDOT. 29. The touch display panel of claim 22, wherein the electrical layer is a transparent conductive oxide layer. The touch display panel of claim 29, wherein the 18 31: the conductive oxide is indium tin oxide. The touch display panel of claim 22, wherein the conductive layer has a layer of protection thereon. Floor. The touch display panel of claim 22, wherein the display unit is one of a liquid crystal display unit and a light emitting diode display unit. 33. The touch display panel according to claim 22, wherein the groove of the straight middle and the present plurality of segments can form a function curve, wherein the slit curve is a square wave curve, a triangular wave curve and a sine wave curve. One. ..., 19
TW96118476A 2007-05-24 2007-05-24 A single layer of touch sensor structure and a touch display panel using the same TWI344615B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI472975B (en) * 2012-07-24 2015-02-11 Tpk Touch Solutions Xiamen Inc Touch panel and manufacturing method thereof
TWI554928B (en) * 2012-07-17 2016-10-21 Guizhou Touchworks Optoelectronics Co Ltd Single layer capacitive touch screen production method

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI374379B (en) 2007-12-24 2012-10-11 Wintek Corp Transparent capacitive touch panel and manufacturing method thereof
TWI358563B (en) 2010-01-26 2012-02-21
US9019233B2 (en) 2010-01-26 2015-04-28 Tpk Touch Solutions Inc. Projected capacitive touch panel and method of manufacturing the same
US8947399B2 (en) 2010-05-11 2015-02-03 Tpk Touch Solutions Inc. Dual-substrate capacitive touch panel
TWI364579B (en) 2010-05-11 2012-05-21
TWI446253B (en) 2011-04-08 2014-07-21 Elan Microelectronics Corp Single - layer sensing layer of two - dimensional porous touchpad
CN103677367B (en) * 2012-09-19 2016-08-24 宏达国际电子股份有限公司 Contact panel
US8816232B2 (en) 2012-09-19 2014-08-26 Htc Corporation Touch panel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI554928B (en) * 2012-07-17 2016-10-21 Guizhou Touchworks Optoelectronics Co Ltd Single layer capacitive touch screen production method
TWI472975B (en) * 2012-07-24 2015-02-11 Tpk Touch Solutions Xiamen Inc Touch panel and manufacturing method thereof

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