WO2019054524A1 - 적외선 방식의 터치스크린 장치 - Google Patents
적외선 방식의 터치스크린 장치 Download PDFInfo
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- WO2019054524A1 WO2019054524A1 PCT/KR2017/009985 KR2017009985W WO2019054524A1 WO 2019054524 A1 WO2019054524 A1 WO 2019054524A1 KR 2017009985 W KR2017009985 W KR 2017009985W WO 2019054524 A1 WO2019054524 A1 WO 2019054524A1
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- frame
- optical
- pass filter
- infrared
- touch screen
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/28—Interference filters
-
- 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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
Definitions
- the present invention relates to an infrared touch screen device.
- a touch screen is a device for inputting a signal based on calculation of coordinates when a specific part on the screen is directly or indirectly touched using a hand or a tool.
- an infrared ray method which recognizes coordinates in a touch screen using an infrared ray sensor is mainly used in a large-sized touch screen.
- this representative method of the infrared ray type a plurality of light emitting elements and light receiving elements are arranged simultaneously or sequentially And the touch screen is operated by touching with a finger or an object capable of blocking light, thereby calculating the coordinates of the point where the reception of light is blocked.
- the Opto-Matrix the Opto-Matrix
- Such an infrared type touch screen is applied to a relatively large touch screen and can have excellent performance based on high reliability and can be implemented at a relatively low cost.
- Such a touch panel having a thin bezel structure is required to be installed not only in an indoor environment that is not affected by the sunlight but also in a building where a lot of outdoor or sunlight is projected (similar outdoors) Is increasing.
- the large screen touch screen is directly or indirectly influenced by the interference wavelength (hereinafter referred to as " disturbance light ") emitted from the sunlight, resulting in an abnormally high maximum detection value of the infrared receiving device.
- SNR the interference wavelength
- SNR of the infrared transmission optical signal is increased to cause a malfunction of the touch, or the operation speed (speed) of the infrared transmission signal is increased, Is lowered.
- the waterproofing and dustproofing process of the conventional infrared touch screen device is implemented through a two-side adhesive and a silicone treatment between most of the components and the corresponding components.
- double-sided adhesives and silicones have a considerably low temperature variation and durability against long-term use. Therefore, there are many problems to be stably operated in an outdoor environment for a long time, and productivity and assemblability are low, maintenance is difficult There are disadvantages.
- a close bonding structure with glass is essential, and such a close contact structure with glass does not cause any problems in a indoor environment.
- the close bonding structure with the glass in the outdoor environment may cause many problems such as user convenience, touch function, and maintenance.
- the temperature of a glass surface for touching can be made extremely high due to high heat or solar radiation emitted from a display panel (LCD, LED, etc.)
- the glass surface must be touched by hand.
- dust, dirt, rainwater, etc. may accumulate foreign matter on the end portion of the touch screen device which is tightly adhered to the glass surface, which may cause malfunction of the touch function.
- the present invention is to provide an optical band pass filter that allows only a signal of a specific wavelength band to be used to dramatically remove disturbance light interference, thereby improving a touch recognition rate, minimizing malfunction,
- the present invention is to provide an infrared touch screen device that can be used outdoors.
- Another object of the present invention is to provide an infrared type touch screen comprising a plurality of infrared ray emitting elements and a plurality of light receiving elements, an optical high pass filter used for eliminating the influence of disturbance light, An optical bandpass filter having improved performance and an infrared type touch screen device having an improved structure for mounting the filter.
- Another object of the present invention is to provide an infrared touch screen device capable of sufficiently removing the influence of disturbance light, external scattered light, reflected light, and the like in an outdoor environment.
- Another object of the present invention is to provide a waterproof structure and an anti-dust structure for preventing foreign substances such as dust, snow, and boiling from entering the inside of a touch module by implementing a sealing function in a bonding region of a touch module and an optical filter.
- An infrared type touch screen device that can be used stably in an outdoor environment.
- Embodiments according to the present invention can be used to accomplish other tasks not specifically mentioned other than the above-described tasks.
- an infrared touch screen device including: a frame frame disposed in a quadrangle shape to receive a touch screen panel; A plurality of light projecting elements 121 provided on any one of the transverse frame frames 110a in the frame and emitting infrared rays forward; And a plurality of light-emitting devices (121) disposed in front of the plurality of light-projecting elements (121) and provided in any one of the transverse frame frames (110a), for transmitting only infrared rays of a predetermined wavelength band or more to the infrared rays emitted from the plurality of light- A high pass filter 133; The optical high pass filter 133 is disposed in the other transverse frame 110a and is disposed in parallel with the optical high pass filter 133.
- the optical high pass filter 133 passes only infrared rays of a set wavelength band A first optical band-pass filter (131); And a plurality of light receiving elements disposed in the other transverse frame frame (110a) and disposed inside the first optical bandpass filter (131) and receiving infrared rays passing through the first optical bandpass filter (131)
- the first optical band-pass filter 131 is fixedly fitted into a fitting groove 112 formed in a longitudinal direction of the frame, and the first optical band- Pass filter 131 and the optical high-pass filter 133 are arranged in a direction orthogonal to the optical axis of infrared rays.
- the optical high-pass filter 133 is disposed on an axis orthogonal to the optical axis of the infrared signal L1
- the first optical bandpass filter 131 may be disposed in a direction orthogonal to the optical axis of the infrared signal L1.
- the infrared touch screen device may be arranged between the optical high pass filter 133 and the contact surface of the portion fixed to the frame, and may be made of rubber material or silicone material having elasticity (150, 151) which are provided with a plurality of grooves.
- the rubber 150 of the infrared type touch screen device according to the present invention may include the optical high pass filter 133 at a portion where the optical high pass filter 133 is fixed to the frame, As shown in Fig.
- the infrared touch screen device includes the frame 110 having the fixing screw hole 160 formed on the free end thereof; And a tightening screw 161 fastened to the tightening screw hole 160 to compress the frame 110 so as to prevent the rubber 150 from shrinking.
- the plurality of light-emitting elements 121 and the optical high-pass filter 133 may be arranged in any one of the vertical frame frames 110b, And the optical high pass filter 133, the first optical bandpass filter 131 and the plurality of light receiving elements 132 are installed in the other vertical frame frame 110b in the frame frame .
- the first and second optical bandpass filters 131 and 122 are formed by vacuum deposition on a polycarbonate material, Lt; / RTI >
- the infrared touch screen device is inserted between the touch glass 170 and the frame 110, and is inserted between the touch glass 170 and the frame 110 And a block module 181 for allowing the space g to be formed.
- the infrared touch screen device can improve the disturbance light removing performance instead of the conventional infrared filter (high pass filter) in an infrared touch screen having a thin bezel size Pass filter that passes only the band of the transmitted light from the light emitting element to reduce disturbance light interference by more than 5 times compared to the existing filter and to improve the elimination of disturbance light interference, . ≪ / RTI >
- the present invention it is possible to improve the touch speed and the touch accuracy and realize the high-performance multi-touch function through the reduction of the disturbance light interference, and the touch operation control due to the elimination or reduction of the disturbance light signal interference measurement algorithm It is possible to reduce the number of algorithms, thereby reducing the cost of the CPU and peripheral circuitry (material cost) and development cost.
- a touch screen device of the type can be provided.
- a certain space is provided between the infrared touch screen device and the touch glass, thereby ensuring the operator's convenience in the outdoor environment and the reliability of the touch function.
- FIG. 1 is an exemplary view for explaining a configuration of an infrared touch screen device according to an embodiment of the present invention.
- FIG. 2 is an exemplary view showing an installation state of an optical bandpass filter in an infrared touch screen device according to an embodiment of the present invention.
- FIG. 3 is a cross-sectional view showing the installation state of each component in the infrared touch screen apparatus according to the first embodiment of the present invention.
- FIG. 4 is a view showing an incident path on the receiving unit side in the infrared touch screen apparatus shown in FIG. 3.
- FIG. 4 is a view showing an incident path on the receiving unit side in the infrared touch screen apparatus shown in FIG. 3.
- FIG. 5 is a cross-sectional view showing the installation state of each configuration in the infrared touch screen device according to the second embodiment of the present invention.
- FIG. 6 is a sectional view showing the installation state of each configuration in the infrared touch screen device according to the third embodiment of the present invention.
- FIG. 7 is a cross-sectional view showing the installation state of each component in the infrared touch screen device according to the fourth embodiment of the present invention.
- FIG. 8 is a cross-sectional view showing an installation state and a rubber structure of each configuration in an infrared type touch screen device according to a fifth embodiment of the present invention.
- FIG. 9 is a cross-sectional view showing an installation state and a rubber structure of each configuration in an infrared type touch screen device according to a sixth embodiment of the present invention.
- FIG. 10 is a sectional view showing a rubber fixing structure according to a sixth embodiment of the present invention.
- FIG. 11 is a graph comparing characteristics of an optical high-pass filter and an optical band-pass filter according to an embodiment of the present invention.
- FIG. 12 is a structural view for securing a certain space with the touch glass surface according to the embodiment of the present invention.
- the present invention may be embodied in many different forms and is not limited to the embodiments described herein.
- the present invention can be implemented not only in a touch structure of a quadrangle, but also in a touch module structure (one transmission section and one reception section) composed of right and left or upper and lower frames.
- module means a unit for processing at least one function or operation, and may be implemented by hardware or software or a combination of hardware and software.
- FIG. 1 is an exemplary diagram illustrating a configuration of an infrared touch screen device according to an embodiment of the present invention.
- an infrared touch screen apparatus 100 may include a frame 110, two transmitters 120, and two receivers 130.
- the frame 110 has a rectangular shape with two horizontal frame frames 110a and 110b and a vertical frame frame 110b and a Y frame.
- a touch panel (not shown) is installed in the rectangular internal space.
- the transmitting unit 120 may be installed in one of the horizontal frame frames 110a and one of the vertical frame frames 110b in the frame frame 110.
- the receiving unit 130 may be installed in another transverse frame 110a and another transverse frame 110b.
- the transmitting unit 120 and the receiving unit 130 may be disposed to face each other and the infrared signal L1 transmitted from the transmitting unit 120 may be incident on the receiving unit 130.
- the transmitting unit 120 forms a grid-shaped infrared beam by arranging the plurality of light emitting devices 121 in the longitudinal frame frame 110a or the longitudinal frame frame 110b along the longitudinal direction of the frame at predetermined intervals .
- Each of the plurality of light emitting devices 121 emits a specific band of the infrared signal L1 through the exposed portion of the horizontal frame frame 110a or the vertical frame frame 110b.
- the light-emitting element 121 may be a light-emitting diode (LED) element, a laser diode (LD) element, or the like.
- the receiving unit 130 includes a first optical band-pass filter 131 for filtering an infrared signal L1 having the same band as that used by the light-emitting device, and a second optical band- And a plurality of light receiving elements 132 for receiving the infrared signal L1 of a band or a band slightly broader than the same band.
- the plurality of light receiving elements 132 may be an infrared light receiving element having a light peak value and a bandwidth of +/- 10 nm from the central wavelength.
- the plurality of light receiving elements 132 are arranged along the longitudinal direction of the frame at a predetermined interval in the transverse frame 110a or the frames 110a and 110b, Pass filter 131, and receives an optically filtered infrared signal L1 of a specific band.
- the optical wavelength characteristics of the infrared receiver shown in Fig. 11 show that the spectral distribution of sunlight (that is, the influence of sunlight) is insufficient in the wavelength range of about 900 nm to 1,000 nm.
- the first optical band-pass filter 131 optically filters the section where the interference by the sunlight is minimized and enters the light-receiving element 132, so that the influence of the sunlight is detected by an optical filtering method So that a more efficient and stable solar photodetection method can be realized.
- the optical filtering band of the first optical band-pass filter 131 is set corresponding to the wavelength band of the optical signal transmitted from the light-emitting device 121,
- the light receiving band can be determined. This means that the optical filtering range of the first optical band-pass filter 131 and the light receiving range of the light receiving element 132 are changed when the optical signal transmitted from the light emitting device 121 is changed.
- the transmitting unit 120 transmits the infrared signal L1 sent from the light-emitting element 121 to the infrared signal L1 Pass filter 122 (see Fig. 2) for filtering only the first optical band-pass filter 122 (see Fig. 2).
- FIG. 2 is an exemplary view showing an installation state of an optical bandpass filter in an infrared touch screen device according to an embodiment of the present invention.
- a second optical bandpass filter 122 may be installed in the transmission unit 120.
- a conventional infrared type touch screen device using an optical high-pass filter generally passes disturbance light in a band of 700 nm or more in consideration of an area removed by an optical high-pass filter in terms of optical spectrum Since the disturbance light is removed in the sub-600 nm band, the disturbance light interference amount that can be removed is insufficient.
- the infrared receiver since the infrared receiver has the broadband reception characteristic in the band of 700 nm or more, the conventional infrared touch screen using only the high pass filter may have a problem that disturbance light interference can not be avoided due to low disturbance light removal rate.
- the infrared touch screen device includes first and second optical bandpass filters 131 and 122 may be used.
- the first and second optical bandpass filters 131 and 122 are formed in a thin and long shape so that interference signals other than the light emission (light emission) signal sent from the light emitting element 121 are not drawn into the light receiving element 132, It may be positioned in the transverse frame 110a or the transverse frame 110b in close proximity to the light receiving element 132 or the light transmitting element 121.
- the first and second optical bandpass filters 131 and 122 may be manufactured in the form of one thin and long bar to fit the length of the horizontal frame frame 110a or the vertical frame frame 110b, And may be installed in the vertical frame 110b.
- the first and second optical bandpass filters 131 and 122 may be made of two or three thin and long rods in order to increase the sunlight removal rate, and may be installed in the horizontal frame frame 110a or the vertical frame frame 110b .
- the number of the first and second optical bandpass filters 131 and 122 installed in one frame frame is the most preferable.
- the number of the first and second optical bandpass filters 131 and 122 may be plural, depending on the manufacturing cost and other conditions.
- the number of the first and second optical bandpass filters 131 and 122 may be increased as the length of the longitudinal frame frame 110b increases.
- first and second optical bandpass filters 131 and 122 (hereinafter referred to as first and second optical bandpass filters) 131 and 132 are used as a mixture of a chemical bonding structure in which a polycarbonate material conventionally used in the production of an infrared optical filter has been mixed with a paint capable of absorbing light energy per wavelength. ), The components of the mixture are not uniformly distributed throughout the filter, so that the uniformity is lowered and thus the optical filter may not be able to function in a high wavelength band. Particularly when the lengths of the first and second optical bandpass filters 131 and 122 are made thin and long as in the case of the present invention.
- the first and second optical bandpass filters 131 and 122 are fabricated using a vacuum evaporation method, and the object to be deposited is the same as the conventional infrared touch screen, Pass filter structure capable of passing only a specific optical band to a material having a wide area of the same plastic (polycarbonate material) as the existing optical high-pass filter is formed by vapor deposition coating.
- the first and second optical bandpass filters 131 and 122 formed in this manner can be formed to have a total length of about 0.1 to 5 m so as to be applicable to various touch screen sizes,
- the optical filter characteristic capable of selectively passing only the band can be uniformly implemented over the entire area of the touch screen.
- the wavelength of light passing through is the wavelength of the infrared band including the 940 nm band which is mainly used recently, and can be changed according to the requirements of the touch screen device.
- FIG. 3 is a cross-sectional view showing the installation state of the respective components in the infrared touch screen device according to the first embodiment of the present invention, and is a sectional view taken along the longitudinal direction of the horizontal frame 110a shown in FIG.
- the installation state of each of the components shown in Fig. 3 can also be configured in the same manner in the vertical frame 110b.
- the infrared touch screen device 100 includes one or more first and second (first and second) frame frames 110a, Optical band pass filters 131 and 122 may be provided.
- Each of the transverse frame frame 110a or the longitudinal frame frame 110b is formed with a fixing groove 112 having a ⁇ shape formed in the lengthwise direction and is provided with a light emitting element 121 or a light receiving element 132 Through grooves are formed on the front surface of the light-emitting device 121 or the light-emitting device 121 or the light-receiving device 132 are formed.
- the first and second optical bandpass filters 131 and 122 can be fixed in a fixing groove 112 of a ⁇ shape and installed in a direction orthogonal to the optical axis of the infrared signal L1.
- the light emitting device 121 or the light receiving device 132 is installed in an internal space defined by the transverse frame 110a or the transverse frame 110b and is filtered through the first optical bandpass filter 122 through the through- And receives infrared rays filtered by the first optical band-pass filter 131.
- the PCB substrate 140 is fixed to the inner space formed by the horizontal frame frame 110a or the vertical frame frame 110b and the light projecting device 121 or the light receiving device 132 is electrically connected to the PCB substrate 140 Lt; / RTI >
- Disturbance light L2 such as sunlight or illumination light is incident along with the infrared light transmitted from the light-
- most of the disturbance light is filtered and removed by the optical band-pass filter, and only the infrared signal L1 transmitted from the light-emitting element is incident on the light-receiving element 132.
- the infrared touch screen device 100 according to the second embodiment of the present invention includes an optical high pass filter 133 added to the first embodiment of the present invention with reference to FIG. 4 .
- the optical high-pass filter 133 is installed on the front surfaces of the first and second optical bandpass filters 131 and 122 so as to be positioned on the outer side of the frame, and is closely attached to the first and second optical bandpass filters 131 and 122 Can be installed. Therefore, the infrared rays incident on the light receiving element 132 are primarily filtered by the optical high-pass filter 133 and then filtered by the first optical band-pass filter 131 in a second order.
- the optical high-pass filter 133 has the characteristic of removing the light wavelength of at least 900 nm and passing the light wavelength of 900 nm or more, but it has the characteristic of passing the conventional light wavelength of 700 nm or more and removing the light wavelength of 600 nm or less Also,
- FIG. 6 is a sectional view showing the installation state of each configuration in the infrared touch screen device according to the third embodiment of the present invention.
- an infrared type touch screen device 100 according to a third embodiment of the present invention includes a first and a second optical band pass filters 131 122, but the optical high pass filter 133 is installed so as to be inclined at a set angle with respect to the optical axis of the infrared signal L1.
- the optical high-pass filter 133 may be arranged to be inclined by 5 DEG to 10 DEG with respect to a vertical axis (axis orthogonal to the optical axis of the infrared signal).
- the optical high pass filter 133 When the optical high pass filter 133 is inclined by 5 ⁇ to 10 ⁇ with respect to the vertical axis, the interference due to the reflection signal at the edge of the touch frame can be reduced.
- the optical high pass filter 133 When the optical high pass filter 133 is inclined at an angle of 5 to 10 with respect to the vertical axis, when a light is blocked by a finger or the like in a rectangular area (corner part) where the X axis and the Y axis of the touch screen device meet, This is to prepare for the case where touch misunderstanding can be performed due to reflection of light transmitted from another axis. That is, assuming that light is blocked at the left edge of the horizontal frame frame 110a and the edge near the upper edge of the vertical frame frame 110b, light emitted from the light projector 121 of the vertical frame frame 110b is reflected Since light can be received by the light receiving element 102 of the neighboring frame 110a, there is a possibility of touch misrecognition. Therefore, it is possible to prevent such an error by implementing the inclination in the filter inlet portion so that the reflected light is not directly introduced.
- FIG. 7 is a cross-sectional view showing a state of each configuration in an infrared type touch screen device according to a fourth embodiment of the present invention.
- the optical high-pass filter 133 is inclined by 5 ° to 10 ° with respect to the longitudinal axis.
- the optical high-pass filter 133 133 and the first and second optical bandpass filters 131 and 122 are inclined at an angle of 5 ° to 10 ° with respect to the longitudinal axis at the same time, the same effects as those of the third embodiment can be obtained.
- FIG. 8 is a cross-sectional view illustrating a structure of a frame for waterproofing and dustproofing, and a rubber insertion structure in an infrared touch screen device according to a fifth embodiment of the present invention.
- the optical high-pass filter 133 and the first and second optical bandpass filters 131 and 122 are connected to the horizontal frame frame 110a or the vertical frame frame 110b by a " ⁇ " As shown in FIG. And the rubber 150 may be disposed between the frame frame 110 and the optical high-pass filter 133, more specifically, between the frame frame 110a and the frame frame 110b.
- the rubber 150 can be arranged so as to be in contact with the front surface of the optical high-pass filter 133, for example, the surface to which the external light is led, and as shown in FIG. 8, (Not shown).
- the rubber 150 may be provided in the same length as the transverse frame 110a or the longitudinal frame 110b and may be made of a material having flexibility such as a rubber material or a silicone material.
- the rubber 150 can realize a waterproof function and a dustproof function.
- FIG 9 is a cross-sectional view showing a structure in which the rubber 151 is applied to both contact surfaces as in the sixth embodiment according to the fifth embodiment of the present invention.
- the rubber 150 is fixed to the front surface of the optical high-pass filter 133 at a portion fixedly coupled with the transverse frame 110a or the longitudinal frame 110b, And the other rubber 151 may be disposed on the back surface of the optical high-pass filter 133 as shown in Fig. That is, the plurality of rubbers 150 and 151 can be arranged to be in contact at both contact surfaces of the optical high-pass filter 133, whereby the optical high-pass filter 133 can be arranged in the rim 150, 110).
- FIG. 10 is a cross-sectional view illustrating a structure or the like in which a fixing screw is used to prevent the rubber 150 from shrinking in the infrared touch screen apparatus according to the seventh embodiment of the present invention.
- the rubber 150 inserted on both sides of the surface has elasticity due to the characteristics of the material, and may shrink after coupling.
- a space may be formed in which foreign matter can enter the inside of the frame 110a or the frame 110b, so that the tightening screw 161 can be coupled
- the tightening screw hole 160 is formed on the filter engagement surface of the transverse frame 110a or the vertical frame frame 110b to tighten the tightening screw 161 to prevent the rubber 150 from contracting.
- the tightening screw hole 160 may be formed on the free end side of the frame 110 as shown in FIG. More specifically, a fastening screw hole 160 may be formed in the lower frame of the frame 110, and a fastening hole may be formed in the upper frame of the frame 110.
- the fastening hole may be configured such that the threaded portion of the fastening screw 161 passes through and the head portion of the fastening screw 161 extends. That is, the tightening screw 161 can be fastened to the fastening screw hole 160 of the lower body through the fastening hole of the upper body, and the frame 110 can be arbitrarily opened according to the fastening degree of the fastening screw 161
- the original cross-sectional shape can be maintained without being deformed.
- by maintaining the cross-sectional shape of the frame 110 it is possible to prevent the rubber 150, 151 from being excessively squeezed or deformed.
- FIG. 12 is a sectional view showing a combined state of a touch screen overlay device in which a cover mechanism 180 and a block module 181 are coupled to a touch screen device.
- the cover structure 180 can firmly fix the block module 181 and the frame 110 and improve the bonding structure with the touch glass 170 that can be generated in an outdoor environment.
- the touch screen device by inserting the block module 181, the touch screen device according to the embodiment of the present invention can secure a space g between the touch glass 170 and the frame 110 .
- the shape of the block module 181 may be changed according to specifications of the touch screen device.
- the infrared touch screen device can be used as an input device in a display device or a touch type information input device.
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Abstract
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Claims (9)
- 터치스크린 패널이 설치되도록 4각형으로 배치된 테두리 프레임(110);상기 테두리 프레임(110) 중에 어느 하나의 가로 테두리 프레임(110a)에 설치되고 전방으로 적외선을 송출하는 복수의 투광 소자(121);상기 어느 하나의 가로 테두리 프레임(110a)에 설치되고, 상기 복수의 투광 소자(121)의 전방에 배치되어 상기 복수의 투광 소자(121)에서 송출된 적외선 중에 설정 파장 대역 이상의 적외선만 송출되게 하는 광학식 하이패스 필터(133);상기 다른 하나의 가로 테두리 프레임(110a)에 설치되고 상기 광학식 하이패스 필터(133)와 나란하게 배치되며, 상기 광학식 하이패스 필터(133)를 통하여 입사되는 광학 신호에 대해 설정 파장 대역의 적외선만 통과시키는 제1 광학식 밴드패스 필터(131); 및상기 다른 하나의 가로 테두리 프레임(110a)에 설치되고 상기 제1 광학식 밴드패스 필터(131)의 안쪽에 배치되어 상기 제1 광학식 밴드패스 필터(131)를 통과한 적외선을 수신하는 복수의 수광 소자(132);를 포함하고,상기 제1 광학식 밴드패스 필터(131)는 해당 테두리 프레임에 길이 방향으로 형성된 “⊂”자 모양의 설치홈(112)에 끼워져 고정되고,상기 제1 광학식 밴드패스 필터(131)와 상기 광학식 하이패스 필터(133)는 적외선 신호(L1)의 광축에 대하여 직교하는 방향으로 배치된 것을 포함하는 적외선 방식의 터치스크린 장치.
- 제1항에 있어서,상기 광학식 하이패스 필터(133)가 적외선 신호(L1)의 광축에 대하여 직교하는 축에 대해 5° 내지 10° 기울어지게 설치되며, 상기 제1 광학식 밴드패스 필터(131)는 적외선 신호(L1)의 광축에 대해 직교하는 방향으로 배치되는 것을 포함하는 적외선 방식의 터치스크린 장치.
- 제1항에 있어서,상기 제1 광학식 밴드패스 필터(131)와 상기 광학식 하이패스 필터(133)가 적외선 신호(L1)의 광축에 대해 직교하는 축에 대해 5° 내지 10° 기울어지게 설치되는 것을 포함하는 적외선 방식의 터치스크린 장치.
- 제1항에 있어서,상기 광학식 하이패스 필터(133)와 상기 테두리 프레임에 고정되는 부분의 접촉면의 사이에 배치되고, 신축성을 갖는 고무 재질 또는 실리콘 재질로 제공되는 러버(150, 151);를 더 포함하는 적외선 방식의 터치스크린 장치.
- 제4항에 있어서,상기 러버(150)는, 상기 광학식 하이패스 필터(133)가 상기 테두리 프레임에 고정되는 부분에서, 상기 광학식 하이패스 필터(133)의 양쪽 접촉면에서 접촉하도록 배치된 것을 포함하는 적외선 방식의 터치스크 장치.
- 제4항에 있어서,조임나사 구멍(160)이 자유단 쪽에 형성된 상기 테두리 프레임(110); 및상기 조임나사 구멍(160)에 체결되어 상기 테두리 프레임(110)을 압축시켜 상기 러버(150)의 수축을 방지하도록 하는 조임 나사(161);를 더 포함하는 적외선 방식의 터치스크린 장치.
- 제1항에 있어서,상기 복수의 투광 소자(121)와 상기 광학식 하이패스 필터(133)는, 상기 테두리 프레임 중에 어느 하나의 세로 테두리 프레임(110b)에 설치되고,상기 광학식 하이패스 필터(133)와 상기 제1 광학식 밴드패스 필터(131)와 상기 복수의 수광 소자(132)는, 상기 테두리 프레임 중에 다른 하나의 세로 테두리 프레임(110b)에 설치되는 것을 포함하는 적외선 방식의 터치스크린 장치.
- 제1항에 있어서,상기 제1, 2 광학식 밴드패스 필터(131, 122)가 폴리카보네이트 재질 위에 진공 증착 과정을 통해 필터 전체가 균일한 광학 필터 특성을 갖는 것을 포함하는 적외선 방식의 터치스크린 장치.
- 제1항에 있어서,터치 유리(170)와 상기 테두리 프레임(110) 사이에 삽입되어 상기 터치 유리(170)와 상기 테두리 프레임(110)의 사이에 공간(g)이 형성되도록 하는 블록 모듈(181);을 더 포함하는 적외선 방식의 터치스크린 장치.
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US20220291767A1 (en) * | 2019-11-29 | 2022-09-15 | Guangzhou Shiyuan Electronic Technology Company Limited | Touch frame and touch screen having the same |
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KR20080096975A (ko) * | 2007-04-30 | 2008-11-04 | 안영수 | 터치스크린의 구동방법 |
US20100156828A1 (en) * | 2008-12-24 | 2010-06-24 | Jong-Seong Choi | Touch type display device |
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KR100910024B1 (ko) * | 2008-10-13 | 2009-07-30 | 호감테크놀로지(주) | 선형 적외선 발광체를 이용한 카메라 방식의 터치 스크린 |
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JPH11338637A (ja) * | 1998-05-25 | 1999-12-10 | Carol Touch Japan | 光学式タッチパネル |
KR20080096975A (ko) * | 2007-04-30 | 2008-11-04 | 안영수 | 터치스크린의 구동방법 |
KR100804815B1 (ko) * | 2007-09-10 | 2008-02-20 | (주)컴버스테크 | 외란광에 강한 적외선 카메라를 이용한 터치스크린 |
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US20220291767A1 (en) * | 2019-11-29 | 2022-09-15 | Guangzhou Shiyuan Electronic Technology Company Limited | Touch frame and touch screen having the same |
US11983376B2 (en) * | 2019-11-29 | 2024-05-14 | Guangzhou Shiyuan Electronic Technology Company Limited | Touch frame with arrangement of printed circuit board and touch screen having the same |
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