KR20110122567A - Resistive touch screen - Google Patents

Resistive touch screen Download PDF

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Publication number
KR20110122567A
KR20110122567A KR1020100042140A KR20100042140A KR20110122567A KR 20110122567 A KR20110122567 A KR 20110122567A KR 1020100042140 A KR1020100042140 A KR 1020100042140A KR 20100042140 A KR20100042140 A KR 20100042140A KR 20110122567 A KR20110122567 A KR 20110122567A
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KR
South Korea
Prior art keywords
transparent electrode
transparent
dot spacer
hole
touch screen
Prior art date
Application number
KR1020100042140A
Other languages
Korean (ko)
Inventor
김운천
오용수
이종영
Original Assignee
삼성전기주식회사
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Publication date
Application filed by 삼성전기주식회사 filed Critical 삼성전기주식회사
Priority to KR1020100042140A priority Critical patent/KR20110122567A/en
Publication of KR20110122567A publication Critical patent/KR20110122567A/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04113—Peripheral electrode pattern in resistive digitisers, i.e. electrodes at the periphery of the resistive sheet are shaped in patterns enhancing linearity of induced field

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Position Input By Displaying (AREA)

Abstract

PURPOSE: A resistance film method touch screen is provided to improve the strength of combination between a dot spacer and a transparent electrode by forming holes on the onside of a first and a second transparent electrode in which the dot spacer is combined. CONSTITUTION: A transparent board is faced with a transparent film. A first transparent electrode(11) is formed on the one side of the transparent film. A second transparent electrode(21) is formed the one side of the transparent board in order to be faced with the first transparent electrode. A dot spacer(40) is formed the one side of the first and the second electrode. A hole(34) is formed on the first and the second transparent electrode in order to be the same width as the dot spacer. The dot spacer is inserted into the hole.

Description

Resistive touch screen {Resistive touch screen}

The present invention relates to a resistive touch screen.

With the development of computers using digital technology, computer aids are being developed. Personal computers, portable transmission devices, and other personal information processing devices use various input devices such as keyboards and mice. To perform text and graphics processing.

However, with the rapid progress of the information society, the use of computers is gradually increasing, and there is a problem in that it is difficult to operate an efficient product only by using a keyboard and a mouse, which play a role as an input device. Therefore, there is an increasing need for a device that is simple and less error-prone, and that allows anyone to easily input information.

In addition, the technology related to the input device is shifting to high reliability, durability, innovation, design and processing related technology beyond the level that meets the general function, and in order to achieve this purpose, information input such as text, graphics, etc. Touch screens have been developed as possible input devices.

The touch screen is used on the display surface of an electronic organizer, a liquid crystal display device (LCD), a plasma display panel (PDP), an electroluminescence (El), and an image display device such as a cathode ray tube (CRT). And a tool used to allow a user to select desired information while viewing the image display apparatus.

The types of touch screens are resistive type, capacitive type, electro-magnetic type, SAW type, surface acoustic wave type, and infrared type. Separated by. These various touch screens are adopted in electronic products in consideration of the problem of signal amplification, difference in resolution, difficulty of design and processing technology, optical characteristics, electrical characteristics, mechanical characteristics, environmental characteristics, input characteristics, durability and economy. Currently, the most widely used method is the resistive film type and the capacitive type.

Among these, a resistive touch screen is generally manufactured in a structure in which an upper film and a lower substrate coated with a transparent electrode face each other with a dot spacer interposed therebetween. Looking at the driving process of the resistive touch screen, the upper film is bent during touch, and the transparent electrodes coated on the upper film and the lower substrate are in contact with each other, thereby changing the voltage applied to the transparent electrode, and detecting the touch position by measuring the same. will be. The resistive touch screen has a simple structure, which is easy to manufacture and low in manufacturing cost, and is advantageous in miniaturization of the touch screen.

1 is a view showing a resistive touch screen according to the prior art. As shown in FIG. 1, the dot spacer 300 of the conventional resistive touch screen is bonded to one surface of the second transparent electrode 200. However, when excessive force is applied due to the touch of the upper film 100 or stress is accumulated due to long repeated use of the touch, the coupling between the dot spacer 300 and the second transparent electrode 210 may be detached or a malfunction may occur. There was a problem.

Therefore, the present invention has been made to solve the problems of the prior art as described above, an object of the present invention is to form a hole in a transparent electrode or a transparent substrate, thereby strengthening the bonding strength to which the dot spacer is bonded, and thus the resistance film It is to provide a resistive touch screen for improving the durability and reliability of the operation touch screen.

The resistive touch screen according to the first embodiment of the present invention corresponds to a transparent film, a transparent substrate formed to face the transparent film, a first transparent electrode formed on one surface of the transparent film, and the first transparent electrode. And a second spacer formed on one surface of the transparent substrate, and a dot spacer formed on one surface of any one of the first transparent electrode and the second transparent electrode, and the first transparent electrode or the second transparent electrode. The hole is formed in the width smaller than or equal to the diameter of the dot spacer, characterized in that the dot spacer is inserted into the hole.

Here, the hole is characterized in that it is formed to further extend in the thickness direction on the transparent film or the transparent substrate in a width smaller or equal to the diameter of the dot spacer.

The first transparent electrode or the second transparent electrode may be formed of indium tin oxide or a conductive polymer.

In addition, the transparent film or the transparent substrate is characterized in that it is formed of glass (glass) or plastic.

The resistive touch screen according to the second exemplary embodiment of the present invention may further include a surface treatment layer formed between the transparent film and the first transparent electrode or between the transparent substrate and the second transparent electrode.

Here, the hole is characterized in that it is formed to further extend in the thickness direction of the surface treatment layer to a width less than or equal to the diameter of the dot spacer.

In addition, the hole is characterized in that it is formed to further extend in the thickness direction on the transparent film or the transparent substrate in a width less than or equal to the diameter of the dot spacer.

In addition, the hole is characterized in that it is formed to further extend in the thickness direction on the transparent film or the transparent substrate in a width less than or equal to the diameter of the dot spacer.

In addition, the surface treatment layer is characterized in that the silicon dioxide (SiO 2 ) or titanium dioxide (TiO 2 ).

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to this, the terms or words used in this specification and claims are not to be interpreted in a conventional and dictionary sense, and the inventors may appropriately define the concept of terms in order to best describe their invention. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention.

According to the present invention, a hole is formed on one surface of the first transparent electrode or the second transparent electrode to which the dot spacer is bonded to have a width smaller than or equal to the diameter of the dot spacer, thereby improving the fixing strength when the dot spacer is bonded to the transparent electrode. It is effective to let.

In addition, a hole formed in the first transparent electrode or the second transparent electrode is formed to extend on the transparent substrate or the transparent film, thereby inserting and coupling the dot spacers, thereby improving the fixing strength when the dot spacer is coupled to the transparent electrode.

In addition, when the surface treatment layer is further formed between the transparent film or the transparent substrate and the first transparent electrode or the second transparent electrode, holes formed in the first transparent electrode or the second transparent electrode are further extended to the surface treatment layer, or By further extending the transparent film or the transparent substrate, the adhesion strength when the dot spacer is coupled to the transparent electrode may be improved.

In addition, since the adhesion strength coupled to the transparent electrode of the dot spacer is strengthened, the durability of the resistive touch screen that can withstand the strong pressure at the touch and the repeated pressure repeatedly is enhanced.

In addition, the adhesion strength to which the dot spacer is coupled to the transparent electrode is improved, thereby reducing malfunction in touch, thereby improving accuracy and reliability of the touch screen operation, and improving the quality of the touch screen.

1 is a view showing a state in which the dot spacer of the conventional resistive touch screen is coupled;
2 to 9 are views showing various coupling structures of the dot spacer and the transparent electrode of the first embodiment according to the present invention; And
10 to 21 are views showing various coupling structures of the dot spacer and the transparent electrode of the second embodiment according to the present invention.

The objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. In addition, terms such as “first” and “second” are used to distinguish one component from another component, and the component is not limited by the terms. In the following description of the present invention, a detailed description of related arts which may unnecessarily obscure the gist of the present invention will be omitted.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 to 9 are diagrams illustrating various coupling structures of a dot spacer and a transparent electrode according to a first embodiment of the present invention.

As shown in FIG. 2 and FIG. 3, the resistive touch screen according to the first embodiment of the present invention is a transparent substrate 20 and a transparent film 10 formed to face the transparent film 10, the transparent film 10. The first transparent electrode 11 and the first transparent electrode 11 formed on one surface of the (), the second transparent electrode 21 and the first transparent electrode 11 formed on one surface of the transparent substrate 20 or A dot spacer 40 formed on one surface of one of the second transparent electrodes 21, and the diameter of the dot spacer 40 on the first transparent electrode 11 or the second transparent electrode 21. A hole is formed to have a smaller or the same width, and the dot spacer 40 is inserted into the hole.

The transparent film 10 may be bent when the user receives a pressure from the user's body or a specific object to serve to contact the first transparent electrode 11 and the second transparent electrode 21.

When the pressure is applied to the other surface of the transparent film 10, the first transparent electrode 11 contacts the second transparent electrode 21 to generate a change in voltage so that the control unit recognizes touch coordinates. . Here, the first transparent electrode 11 may be formed using a conductive polymer having excellent flexibility and simple coating process as well as ITO (Indum Thin Oxide). In this case, the conductive polymer includes poly-3,4-ethylenedioxythiophene / polystyrenesulfonate (PEDOT / PSS), polyaniline, polyacetylene or polyphenylenevinylene, and the like.

The transparent substrate 20 should not be bent under pressure unlike the transparent film 10. Therefore, the transparent substrate 20 is not particularly limited as long as the material has a predetermined strength or more, but is not limited to polyethylene terephthalate (PET), polycarbonate (PC), polymethyl methacrylate (PMMA), polyethylene naphthalate (PEN), Polyethersulfone (PES), Cyclic Olefin Polymer (COC), Triacetylcellulose (TAC) Film, Polyvinyl Alcohol (PVA) Film, Polyimide (PI) Film, Polystyrene (PS), Biaxially Stretched It is preferable to form from polystyrene (K resin-containing biaxially oriented PS; BOPS), glass or tempered glass.

As described above, the second transparent electrode 21 contacts the first transparent electrode 11 facing the pressure when the pressure is applied to the transparent film 10 so that the control unit recognizes the touch coordinates. Here, the second transparent electrode 21 may be formed of ITO (Indum Thin Oxide) or a conductive polymer similarly to the first transparent electrode 11.

The dot spacer 40 mitigates the impact between the first transparent electrode 11 and the second transparent electrode 21 when the user touches, and when the pressure of the user is removed, the first transparent electrode 11 returns to its original position. It provides a repulsive force to return to maintain insulation between the first transparent electrode 11 and the second transparent electrode 21.

The present invention is to improve the bonding strength that the dot spacer 40 is coupled to the first transparent electrode 11 or the second transparent electrode 21. Accordingly, as shown in FIG. 2, holes 34 are formed in the second transparent electrode 21 in a width smaller than the diameter of the dot spacer 40. The dot spacer 40 may be inserted into and coupled to the hole 34 to enhance adhesion strength to the second transparent electrode 21. 3 illustrates a state in which the dot spacers 40 are coupled to the first transparent electrodes 11, and in this case, the holes may be formed on the second transparent electrodes 21 in a width smaller than the diameter of the dot spacers 40. 34) to form the dot spacer 40. Machining of the hole 34 is not limited in shape and can be processed into various shapes such as cones, triangular pyramids. In addition, as shown in FIGS. 4 and 5, the hole 34a processed in the transparent electrode is formed to have the same width as the diameter of the dot spacer 40 so that the dot spacer 40 may be inserted. Except for the difference in the diameter of the hole 34a to be formed, it has the structure and effect as described above.

6 and 7 illustrate a coupling structure of the dot spacer 40 and the transparent electrode according to the present invention. In FIG. 6, the hole 35 formed in the second transparent electrode 21 and the transparent substrate 20 to which the dot spacer 40 is coupled has a width smaller than the diameter of the dot spacer 40. By extending the hole 35 of the second transparent electrode 21 to the transparent substrate 20. The hole 35 into which the dot spacer 40 is inserted may be deepened, and the bonding strength of the dot spacer 40 may be further strengthened. FIG. 7 is a view illustrating bonding the dot spacer 40 by processing the holes 35 in the first transparent electrode 11 and the transparent film 10, and the structure and contents thereof are shown in FIG. 7. It is the same as the hole 35 formed in the transparent substrate 20. Here, the shape of the hole 35 is not particularly limited, such as a cone shape, a triangular pyramid shape, and the hole 35 may be processed into various shapes in order to reinforce the strength to which the dot spacer 40 is inserted and fixed. 8 and 9 show that the hole 35a is formed to have the same width as the diameter of the dot spacer 40, and the dot spacer 40 is inserted, and the difference in the diameter of the formed hole 35a is shown. Other than that, it has the structure and effect as mentioned above.

10 to 21 illustrate a coupling structure between a dot spacer and a transparent electrode according to a second exemplary embodiment of the present invention.

In the resistive touch screen according to the second embodiment of the present invention, a high frequency treatment or a primer (1) is applied to one surface of the transparent film 10 to improve adhesion between the first transparent electrodes 11 formed on one surface of the transparent film 10. The surface treatment layer 50 may be further formed by performing a primer) treatment. The surface treatment layer 50 may be formed of silicon dioxide (SiO 2 ) or titanium dioxide (TiO 2 ). Similarly, the surface treatment layer 50 may be further formed to improve the adhesive force between the transparent substrate 20 and the second transparent electrode 21. The formation method and material may be formed in the same manner as the surface treatment layer 50 formed on the transparent film 10.

Hereinafter, the coupling structure between the dot spacer 40 and the transparent electrode according to the second embodiment of the present invention in which the surface treatment layer 50 is further formed on the transparent film 10 or the transparent substrate 20 will be described. Explain together.

10 and 11 illustrate a coupling structure of the dot spacer 40 according to the second embodiment of the present invention. As shown in FIG. 10, the hole 31 is formed in the second transparent electrode 21 with a width smaller than the diameter of the dot spacer 40. The dot spacers 40 may be inserted into and coupled to the holes 31 to increase the bonding strength to which the dot spacers 40 are coupled to the second transparent electrodes 21. FIG. 11 illustrates that the dot spacers 40 are coupled to the first transparent electrode 11, and in this case, the holes 31 are smaller than the diameter of the dot spacers 40 on the second transparent electrodes 21. ) Is formed to insert the dot spacer 40. Machining of the hole 31 is not limited in shape and can be processed into various shapes such as cones, triangular pyramids. One surface of which the hole 31 is processed may form a surface treatment layer 50, which is an adhesive layer, to further increase the bonding strength of the dot spacer 40. In addition, as shown in FIGS. 12 and 13, the hole 31a processed in the transparent electrode is formed to have the same width as the diameter of the dot spacer 40 so that the dot spacer 40 may be inserted. Except for the difference in the diameter of the hole 31a to be formed, it has the structure and effect as described above.

14 and 15 show a coupling structure of the dot spacer 40 according to the second embodiment of the present invention. 14 illustrates a surface treatment layer in which holes 32 are formed in the second transparent electrode 21 in a width smaller than the diameter of the dot spacer 40, and the holes 32 are formed on one surface of the second transparent electrode 21. It is a figure which shows that it extends to 50. Therefore, the hole 32 is processed in the second transparent electrode 21 and the surface treatment layer 50, thereby strengthening the adhesion strength of the dot spacer 40 when the dot spacer 40 and the second transparent electrode 21 are combined. You can. 15 illustrates a surface treatment layer in which a hole 32 formed in the first transparent electrode 11 is formed on one surface of the first transparent electrode 11 when the dot spacer 40 is coupled to the first transparent electrode 11. By extending to 50, the adhesion strength of the dot spacer 40 coupled to the first transparent electrode 11 can be enhanced. Here, the shape of the hole 32 may be formed in a conical shape, a triangle, etc., there is no particular limitation, and the hole 32 can be processed into various shapes for reinforcing the strength to which the dot spacer 40 is inserted and fixed. . 16 and 17, the first transparent electrode 11 to which the dot spacer 40 is coupled or is formed by forming the hole 32a in the same width as that of the dot spacer 40. The adhesion strength with the second transparent electrode 21 may be enhanced. Except for the difference in the diameter of the hole 32a to be formed, it has the structure and effect as described above.

18 and 19 show a coupling structure of the dot spacer 40 according to the second embodiment of the present invention. 18 shows that the hole 33 of the second transparent electrode 21 to which the dot spacer 40 is coupled extends further to the surface treatment layer 50 and the transparent substrate 20 in a width smaller than the diameter of the dot spacer 40. It is a figure which shows that it is formed. When the holes 33 are formed in the surface treatment layer 50 and the transparent substrate 20 on one surface of the second transparent electrode 21 to which the dot spacers 40 are coupled, the dot spacers 40 are inserted and combined. The fixing strength of is further increased. FIG. 19 illustrates that the hole 33 is formed in the surface treatment layer 50 and the transparent film 10 on one surface of the first transparent electrode 11 when the dot spacer 40 is coupled to the first transparent electrode 11. It is a figure which shows it extending further. 20 and 21, the hole 33a may be formed to have the same width as that of the dot spacer 40. By the hole 33a process, the adhesion strength of the dot spacer 40 coupled to the first transparent electrode 11 or the second transparent electrode 21 can be enhanced. Except for the difference in the diameter of the hole 33a to be formed has the structure and effect as described above.

Although the present invention has been described in detail with reference to specific embodiments, it is intended to describe the present invention in detail, and the resistive touch screen according to the present invention is not limited thereto. It is clear that modifications and improvements are possible by those with knowledge of the world. All simple modifications and variations of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be apparent from the appended claims.

10: transparent film 11: the first transparent electrode
20: transparent substrate 21: second transparent electrode
31,32,33,34,35: hole 31a.32a, 33a, 34a, 35a: hole
40: dot spacer 50: surface treatment layer

Claims (8)

Transparent film;
A transparent substrate formed to face the transparent film;
A first transparent electrode formed on one surface of the transparent film;
A second transparent electrode formed on one surface of the transparent substrate so as to face the first transparent electrode; And
It includes a dot spacer formed on one surface of any one of the first transparent electrode or the second transparent electrode,
The resistive touch screen of claim 1, wherein a hole is formed in the first transparent electrode or the second transparent electrode with a width smaller than or equal to the diameter of the dot spacer, and the dot spacer is inserted into the hole. The method according to claim 1,
The resistive touch screen of claim 1, further comprising a surface treatment layer formed between the transparent film and the first transparent electrode or between the transparent substrate and the second transparent electrode. The method according to claim 2,
The hole is a resistive touch screen, characterized in that formed to extend to the surface treatment layer having a width smaller than or equal to the diameter of the dot spacer. The method according to claim 3,
The hole is a resistive touch screen, characterized in that formed to extend on the transparent film or the transparent substrate with a width less than or equal to the diameter of the dot spacer. The method according to claim 2,
The transparent film or the transparent substrate is a resistive touch screen, characterized in that formed of glass (Glass) or plastic. The method according to claim 2,
The first transparent electrode or the second transparent electrode is a resistive touch screen, characterized in that formed of indium tin oxide (Indium Tin Oxide) or conductive polymer. The method according to claim 1,
The hole is a resistive touch screen, characterized in that formed to extend on the transparent film or the transparent substrate with a width less than or equal to the diameter of the dot spacer. The method according to claim 2,
The surface treatment layer is a resistive touch screen, characterized in that formed of silicon dioxide (SiO 2 ) or titanium dioxide (TiO 2 ).
KR1020100042140A 2010-05-04 2010-05-04 Resistive touch screen KR20110122567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100042140A KR20110122567A (en) 2010-05-04 2010-05-04 Resistive touch screen

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Application Number Priority Date Filing Date Title
KR1020100042140A KR20110122567A (en) 2010-05-04 2010-05-04 Resistive touch screen

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KR20110122567A true KR20110122567A (en) 2011-11-10

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