KR20100132141A - Disturbance light protectable large size touch screen - Google Patents

Disturbance light protectable large size touch screen Download PDF

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Publication number
KR20100132141A
KR20100132141A KR1020090050801A KR20090050801A KR20100132141A KR 20100132141 A KR20100132141 A KR 20100132141A KR 1020090050801 A KR1020090050801 A KR 1020090050801A KR 20090050801 A KR20090050801 A KR 20090050801A KR 20100132141 A KR20100132141 A KR 20100132141A
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South Korea
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infrared
touch screen
disturbance light
infrared lamp
screen
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KR1020090050801A
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Korean (ko)
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윤주영
권철
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주식회사위오스
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Publication of KR20100132141A publication Critical patent/KR20100132141A/en

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    • 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
    • G06F3/0304—Detection arrangements using opto-electronic means
    • 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

Abstract

PURPOSE: A disturbance light protectable large size touch screen is provided to be produced in a relatively low cost by excluding the installation of an infrared lamp at an upper portion thereof even though a screen size is increased. CONSTITUTION: Infrared cameras(140) are prepared at both ends of a top frame in a diagonal direction. An infrared lamp(200) is prepared in left, right and bottom frames(120,130,110) at a certain interval. An infrared filter is formed at a portion in which the infrared camera face the infrared lamp. An infrared ray emission window is formed at a portion in which the infrared lamp emits an infrared ray.

Description

외란광에 강한 대형 터치스크린{DISTURBANCE LIGHT PROTECTABLE LARGE SIZE TOUCH SCREEN}Large touch screen resistant to disturbance light {DISTURBANCE LIGHT PROTECTABLE LARGE SIZE TOUCH SCREEN}

본 발명은 외란광에 강한 대형 터치스크린에 관한 것으로, 더욱 상세하게는 주변의 다양한 조명의 변화에도 안전한 성능을 가지고, 주변환경에 적응할 수 있을 뿐만 아니라 대형스크린에도 적용할 수 있는 대형터치스크린에 관한 것이다.The present invention relates to a large touch screen resistant to disturbance light, and more particularly, to a large touch screen that can be applied to a large screen as well as adaptable to the surrounding environment, having a safe performance against various lighting changes. will be.

컴퓨터를 이용한 프리젠테이션이 발달함에 따라서 사용자가 화면상에 뿌려지는 영상과 인터페이스하기 위한 인식장치가 필요하게 되었다.As the presentation using a computer has been developed, a recognition device for a user to interface with an image displayed on a screen is required.

상기 인터페이스를 위한 인식장치로는 대표적으로 터치스크린이 있는데, 상기 터치스크린은 간편하고 직관적인 입력방식으로 누구나 손쉽게 사용할 수 있는 인터페이스장치이다. Recognition apparatus for the interface is typically a touch screen, the touch screen is an interface device that can be easily used by anyone with a simple and intuitive input method.

상기 터치스크린은 저항막방식, 정전용량방식, 레이저방식, 적외선방식, 카메라방식 등의 다양한 방식을 사용하여 컴퓨터가 화면상에 위치하는 터치점을 인식하도록 형성된다.The touch screen is formed so that the computer recognizes a touch point located on the screen by using various methods such as a resistive film method, a capacitive method, a laser method, an infrared method, and a camera method.

종래의 적외선방식의 터치스크린은 도 3에서 도시한 바와 같이, 터치스크린(1)의 평면상의 상부측과 우측에 각각 소정거리 이격되어 위치하는 복수의 발광 부(2)와; 상기 터치스크린(1)의 평면상 하부측과 좌측에 상기 각각의 발광부(2)에 대향하도록 배치되는 복수의 수광부(3)와; 상기 수광부(3)의 검출결과를 인가받아 터치스크린(1)의 눌림위치의 좌표를 검출하는 제어부(4)로 구성된다. As shown in FIG. 3, a conventional infrared touch screen includes a plurality of light emitting parts 2 positioned at a predetermined distance from an upper side and a right side of a plane of the touch screen 1, respectively; A plurality of light receiving parts 3 disposed on the lower and left sides of the touch screen 1 so as to face the respective light emitting parts 2; The controller 4 is configured to detect the coordinates of the pressed position of the touch screen 1 by receiving the detection result of the light receiver 3.

상기 종래의 적외선터치스크린은 적외선이 스크린의 표면에 격자형태로 형성되기 때문에 만약 스크린에 터치점이 발생하면 발광부(2)의 위치와 터치에 의해서 가려지는 수광부(3)의 위치를 이용하여 터치점을 X,Y좌표로 인식할 수 있어서 사용자와 화상간의 인터페이스가 가능하게 된다.In the conventional infrared touch screen, since the infrared rays are formed in a lattice shape on the surface of the screen, if a touch point occurs on the screen, the touch point is formed using the position of the light emitting part 2 and the position of the light receiving part 3 covered by the touch. Can be recognized as X and Y coordinates, thereby enabling an interface between the user and the image.

상기 터치스크린에 관한 기술은 대한민국특허청 공개특허공보 제2006-0087410호, 제2003-0036289호 및 등록특허공보 제 0863814등에 개시된 바 있다.The technology related to the touch screen has been disclosed in Korean Patent Laid-Open No. 2006-0087410, 2003-0036289, and No. 0863814.

그러나, 종래의 터치스크린은 다음과 같은 문제점이 있었다. However, the conventional touch screen has the following problems.

(1) 외란광에 많은 영향을 받는다.(1) It is greatly affected by disturbance light.

(2) 장착이 어렵고, 센서와 카메라의 위치선정이 어렵다.(2) Difficult to mount and difficult to position sensor and camera.

(3) 적외선램프의 개수를 스크린의 크기에 따라 비례하게 늘여야 하므로 제작비가 높다.(3) The production cost is high because the number of infrared lamps should be increased proportionally according to the size of the screen.

상기한 문제점을 해결하기 위해서, 본 발명은 스크린의 표면에 부착할 수 있도록 형성되되, 단면이 'ㄷ'자 형상인 상,하단프레임이 형성되고, 대응되도록 좌,우단프레임이 형성되며, 상기 상단프레임의 양측 끝단에는 대각으로 바라보는 적외선카메라가 각각 형성되고, 상기 좌,우 및 하단프레임에는 적외선램프가 일정간격으로 다수개가 형성되는 것을 특징으로 한다.In order to solve the above problems, the present invention is formed so as to be attached to the surface of the screen, the upper and lower frames having a cross-section '' 'is formed, the left and right frames are formed to correspond, the upper end Infrared cameras viewed diagonally are formed at both ends of the frame, and a plurality of infrared lamps are formed on the left, right, and bottom frames at regular intervals.

본 발명에 의한 외란광에 강한 대형 터치스크린에 의하면 다음과 같은 효과가 발생한다.According to the large touch screen resistant to disturbance light according to the present invention the following effects occur.

(1) 외란광에 거의 영향을 받지 않는다.(1) It is hardly affected by disturbance light.

(2) 장착이 쉽고, 센서와 카메라의 위치선정이 간단하다.(2) Easy to install, easy positioning of sensor and camera.

(3) 상단에는 적외선램프를 구현하지 않으므로 스크린이 커지더라도 상대적으로 제작비가 낮다.(3) Since the infrared lamp is not implemented at the top, the production cost is relatively low even if the screen is larger.

본 발명은 스크린의 주연부에에 부착할 수 있도록 형성되되, The present invention is formed to be attached to the peripheral portion of the screen,

단면이 'ㄷ'자 형상인 상,하단프레임(100,110)이 형성되고, 대응되도록 좌,우단프레임(120,130)이 형성되며,Upper and lower frames 100 and 110 having a cross-sectional shape of 'c' are formed, and left and right frames 120 and 130 are formed to correspond to each other.

상기 상단프레임(100)의 양측 끝단에는 대각방향으로 향하는 적외선카메라(140)가 각각 형성되고,At both ends of the upper frame 100 are formed infrared cameras 140 facing in a diagonal direction, respectively,

상기 좌,우 및 하단프레임(120,130,110)에는 적외선램프(200)가 일정간격으로 다수개가 형성되는 것을 특징으로 한다.The left, right and bottom frames 120, 130 and 110 are characterized in that a plurality of infrared lamps 200 are formed at a predetermined interval.

상기 상단프레임(100)의 가운데에는 카메라컨트롤보드(145)가 형성되는데, 상기 카메라컨트롤보드(145)는 적외선카메라(140)를 컨트롤 한다. A camera control board 145 is formed in the center of the upper frame 100, and the camera control board 145 controls the infrared camera 140.

상기 적외선카메라(140)는 각각 대각방향으로 형성되는데, 일측의 적외선카메라(140)는 하단 및 좌단프레임(110,130)에 형성된 적외선램프(200)를 바라볼 수 있도록 형성되고, 타측의 적외선카메라(140)는 하단 및 우단프레임(110,120)에 형성된 적외선램프(200)를 바라볼 수 있도록 형성된다.The infrared camera 140 is formed in a diagonal direction, respectively, the infrared camera 140 of one side is formed so as to look at the infrared lamp 200 formed on the lower and left end frame (110,130), the infrared camera 140 of the other side ) Is formed to look at the infrared lamp 200 formed on the lower and right end frame (110,120).

상기 각각의 적외선카메라(140)의 각도는 최대한 인식불가능영역을 없애기 위해서 서로가 바라볼 수 있는 각도가 좌우단프레임(110,120)에 형성된 적외선램프(200)를 모두 바라볼 수 있도록 형성된다. The angles of the respective infrared cameras 140 are formed such that the angles that can be viewed by each other can look at both the infrared lamps 200 formed on the left and right end frames 110 and 120 in order to eliminate the unrecognizable area as much as possible.

상기 상단,하단,좌단,우단프레임(100,110,120,130)은 모두 동일하게 단면의 형상이 'ㄷ'자 형상으로 형성되고, 모두 내부로 트여있는 구조로 형성된다.The upper, lower, left and right frame 100, 110, 120, 130 are all formed in the same shape of the cross-section 'c' shape, all formed in a structure that is open inside.

상기 상단,하단,좌단,우단프레임(100,110,120,130)의 후방에는 스크린의 프레임이 형성되고, 가운데에는 스크린이 위치한다. The screen frame is formed at the rear of the upper, lower, left and right frame 100, 110, 120, 130, the screen is located in the center.

상기 적외선램프(200)는 4~8개씩 모듈로 형성되고, 서로 플러그와 소켓이 각각 모듈보드의 끝단에 형성되어 서로 연결한다.The infrared lamps 200 are formed of four to eight modules, and plugs and sockets are formed at ends of module boards, respectively, and are connected to each other.

상기 적외선램프(200)는 하,좌,우프레임(110,120,130)의 내부에 각각의 프레임의 크기에 따라 다수개가 형성된다. A plurality of infrared lamps 200 are formed in the lower, left, and right frames 110, 120, and 130 according to the size of each frame.

상기 상단프레임(100)의 트인부분, 즉 적외선카메라(140)가 적외선램프(200)를 바라보는 곳에는 적외선필터를 형성한다. An open part of the upper frame 100, that is, the infrared camera 140 forms an infrared filter where the infrared lamp 200 faces the infrared lamp 200.

상기 하단, 좌단, 우단프레임(110,120,130)의 트인부분, 즉 적외선램프(200)가 방사되는 곳에는 적외선방사창이 형성된다. Infrared radiation windows are formed at open portions of the lower, left and right end frames 110, 120, and 130, that is, the infrared lamps 200 are emitted.

상기 적외선방사창은 1~3mm틈이 형성된 박판으로 형성되어, 적외선이 상기 적외선방사창을 통하여 직진하여 통과할 수 있도록 하여 적외선카메라(140)가 보다 명확하게 인식할 수 있도록 형성된다.The infrared radiation window is formed of a thin plate formed with a 1-3mm gap, so that the infrared ray can pass straight through the infrared radiation window so that the infrared camera 140 can be more clearly recognized.

상기 적외선카메라(140)는 CMOS어레이로 형성되어 적외선이 인식되는 정도를 인식할 수 있다.The infrared camera 140 may be formed of a CMOS array to recognize the degree to which the infrared ray is recognized.

상기 스크린에 위치하는 터치점의 좌표(X, Y)를 검출하는 원리는 상기 터치점으로 인해서 각각의 적외선카메라(140)에 조사되지 않는 어레이의 번호를 확인하고, 조사되지 않는 어레이의 번호를 계산하여 두개의 어레이가 대각으로 겹치는 지점을 삼각법으로 계산하여 형성한다.The principle of detecting the coordinates (X, Y) of the touch point located on the screen is to determine the number of the array not irradiated to each infrared camera 140 due to the touch point, and calculate the number of the array not irradiated The triangulation method forms the points where two arrays overlap diagonally.

이하, 본 발명의 바람직한 실시예로 형성된 외란광에 강한 대형 터치스크린 의 작동을 설명하면 다음과 같다.Hereinafter, the operation of the large touch screen resistant to disturbance light formed by the preferred embodiment of the present invention.

스크린(10)의 프레임에 상단,하단,좌단,우단프레임(100,110,120,130)을 부착하고, 각각의 프레임에는 적외선램프(200)와 적외선카메라(140)를 각각 설치한다. The upper, lower, left and right frames 100, 110, 120, and 130 are attached to the frame of the screen 10, and the infrared lamp 200 and the infrared camera 140 are installed in each frame.

상기와 같이 설치된 터치스크린의 표면에 터치점이 발생하면, 즉 사용자가 손가락이나 막대기 등으로 터치할 경우에 적외선카메라(140)는 인식되지 않는 어레이를 각각 처리장치로 송출하고, 처리장치는 삼각법을 활용하여 터지점의 (X, Y)좌표를 인식한 후 필요한 동작을 일으킨다. When a touch point occurs on the surface of the touch screen installed as described above, that is, when the user touches with a finger or a stick, the infrared camera 140 transmits an unrecognized array to the processing device, and the processing device utilizes trigonometry. After recognizing the (X, Y) coordinates of the touch point, it takes the necessary action.

상기 적외선카메라(140)는 전방에 형성된 적외선필터에 의해서 적외선의 주파수대역, 즉 적외선램프(200)에서 조사되는 주파수 영역의 적외선만 통과하여 적외선카메라(140)로 조사되므로,외란광에 영향을 많이 받지 않는다. The infrared camera 140 is irradiated to the infrared camera 140 by passing only the infrared rays in the frequency band of the infrared, that is, the frequency region irradiated by the infrared lamp 200, by the infrared filter formed in front of the infrared filter, thus affecting a lot of disturbance light. Do not receive.

또한, 적외선램프(200)의 전방에 형성된 적외선방사창으로 적외선카메라(140)를 향해 보다 심도 깊은 적외선을 방사하기 때문에 외란광의 영향을 거의 받지 않는 효과가 발생한다.In addition, since the deep infrared rays are radiated toward the infrared camera 140 by the infrared radiation window formed in front of the infrared lamp 200, the effect of the disturbance light is hardly generated.

상기 적외선카메라(140)와 적외선램프(200)는 각각 상단,하단, 좌단, 우단프레임(100, 110, 120, 130)의 내부 깊숙히 형성되므로, 외란광의 영향을 더욱 줄일 수 있다.Since the infrared camera 140 and the infrared lamp 200 are formed deep inside the upper, lower, left and right end frames 100, 110, 120, and 130, respectively, the influence of the disturbance light may be further reduced.

본 발명은 첨부된 도면을 참조하여 바람직한 실시예를 중심으로 기술되었지만 당업자라면 이러한 기재로부터 후술하는 특허청구범위에 의해 포괄되는 본 발명의 범주를 벗어남이 없이 다양한 변형이 가능하다는 것은 명백하다.Although the present invention has been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that various modifications may be made therein without departing from the scope of the invention, which is covered by the following claims.

도 1은 본 발명의 바람직한 실시예로 형성된 외란광에 강한 대형 터치스크린의 개념도.1 is a conceptual diagram of a large touch screen resistant to disturbance light formed by a preferred embodiment of the present invention.

도 2는 본 발명의 바람직한 실시예로 형성된 외란광에 강한 대형 터치스크린의 개념 사시도. Figure 2 is a conceptual perspective view of a large touch screen resistant to disturbance light formed by a preferred embodiment of the present invention.

도 3은 종래의 적외선터치스크린의 평면도.3 is a plan view of a conventional infrared touch screen.

**<도면의 주요부분에 대한 부호의 설명>**** <Description of the symbols for the main parts of the drawings> **

10 : 스크린 100 : 상단프레임10: screen 100: top frame

110 : 하단프레임 120 : 좌단프레임110: lower frame 120: left frame

130 : 우단프레임 140 : 적외선카메라130: right frame 140: infrared camera

145 : 카메라컨트롤보드 200 : 적외선램프145: camera control board 200: infrared lamp

Claims (3)

스크린의 주연부에 부착할 수 있도록 형성되되, Is designed to attach to the periphery of the screen, 단면이 'ㄷ'자 형상인 상,하단프레임(100,110)이 형성되고, 대응되도록 좌,우단프레임(120,130)이 형성되며,Upper and lower frames 100 and 110 having a cross-sectional shape of 'c' are formed, and left and right frames 120 and 130 are formed to correspond to each other. 상기 상단프레임(100)의 양측 끝단에는 대각방향으로 향하는 적외선카메라(140)가 각각 형성되고,At both ends of the upper frame 100 are formed infrared cameras 140 facing in a diagonal direction, respectively, 상기 좌,우 및 하단프레임(120,130,110)에는 적외선램프(200)가 일정간격으로 형성되는 것을 특징으로 하는 외란광에 강한 대형 터치스크린.The left, right and bottom frame (120, 130, 110) a large touch screen resistant to disturbance light, characterized in that the infrared lamp 200 is formed at a predetermined interval. 제 1항에 있어서, The method of claim 1, 상기 상단프레임(100)의 트인부분, 즉 적외선카메라(140)가 적외선램프(200)를 바라보는 곳에는 적외선필터를 형성하는 것을 특징으로 하는 외란광에 강한 대형 터치스크린. Open part of the upper frame 100, that is, a large touch screen resistant to disturbance light, characterized in that to form an infrared filter where the infrared camera 140 facing the infrared lamp 200. 제 1항에 있어서,The method of claim 1, 상기 하단, 좌단, 우단프레임(110,120,130)의 트인부분, 즉 적외선램프(200)가 방사되는 곳에는 적외선방사창이 형성하는 되는 것을 특징으로 하는 외란광에 강한 대형 터치스크린. A large touch screen resistant to disturbance light, characterized in that the infrared radiation window is formed in the open portion of the lower end, the left end, the right end frame (110, 120, 130), that is, the infrared lamp 200 is emitted.
KR1020090050801A 2009-06-09 2009-06-09 Disturbance light protectable large size touch screen KR20100132141A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9052770B2 (en) 2012-08-24 2015-06-09 Samsung Display Co., Ltd. Touchscreen display device and related method
WO2018048020A1 (en) * 2016-09-12 2018-03-15 대연화학(주) Electronic chalkboard device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9052770B2 (en) 2012-08-24 2015-06-09 Samsung Display Co., Ltd. Touchscreen display device and related method
WO2018048020A1 (en) * 2016-09-12 2018-03-15 대연화학(주) Electronic chalkboard device

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