KR20060037525A - 디지타이저를 갖춘 lcd에서 디지타이저 펜의위치좌표를 측정하기 위한 방법 - Google Patents
디지타이저를 갖춘 lcd에서 디지타이저 펜의위치좌표를 측정하기 위한 방법 Download PDFInfo
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- KR20060037525A KR20060037525A KR1020040086490A KR20040086490A KR20060037525A KR 20060037525 A KR20060037525 A KR 20060037525A KR 1020040086490 A KR1020040086490 A KR 1020040086490A KR 20040086490 A KR20040086490 A KR 20040086490A KR 20060037525 A KR20060037525 A KR 20060037525A
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- frequency
- digitizer
- digitizer pen
- lcd
- pen
- Prior art date
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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
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
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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
- G02F1/13338—Input devices, e.g. touch panels
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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
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03547—Touch pads, in which fingers can move on a surface
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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
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Position Input By Displaying (AREA)
Abstract
Description
Claims (3)
- 디지타이저를 갖춘 LCD에서 디지타이저 펜의 위치좌표를 측정하기 위한 방법에 있어서,RF신호 발생부에서 디지타이저 펜의 위치를 측정하는데 필요한 제 1 주파수를 생성하고, 상기 제 1 주파수를 RF신호 송신부로 전달하는 단계;상기 RF신호 송신부에서 상기 제 1 주파수를 디지타이저 펜과 상기 위상 검출부로 전송하는 단계;상기 디지타이저 펜에서 제 2 주파수를 RF 신호 수신부로 전송하는 단계;상기 RF신호 수신부가 상기 제 2 주파수를 상기 위상 검출부로 전송하는 단계;상기 위상 검출부에서 상기 제 1 주파수와 제 2 주파수의 위상차를 검출하여, PWM 발생부를 통해 상기 위상차를 PWM 파형으로 발생하는 단계;상기 PWM 파형을 이용하여 전압값을 산출한 후, 상기 전압값을 시스템에 위치한 위치 검출부로 전달하는 단계; 및상기 위치 검출부에서 상기 전압값을 통해 상기 디지타이저 펜의 위치좌표를 측정하는 단계;를 포함하며,상기 RF신호 발생부, RF신호 송신부, 위상 검출부, RF신호 수신부 및 위치 검출부가 상기 LCD의 인쇄회로기판에 내장된 것을 특징으로 하는 디지타이저를 갖춘 LCD에서 디지타이저 펜의 위치좌표를 측정하기 위한 방법.
- 제 1 항에 있어서,상기 RF신호 송신부 및 RF신호 수신부는, 상기 LCD의 하부 어레이기판 가장자리에 형성된 안테나를 통해 상기 디지타이저 펜과 제 1 및 제 2 주파수를 송수신하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서,상기 제 2 주파수는 상기 제 1 주파수가 상기 디지타이저 펜에 반사된 주파수인 것을 특징으로 하는 방법.
Priority Applications (1)
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KR1020040086490A KR100590933B1 (ko) | 2004-10-28 | 2004-10-28 | 디지타이저를 갖춘 lcd에서 디지타이저 펜의위치좌표를 측정하기 위한 방법 |
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KR1020040086490A KR100590933B1 (ko) | 2004-10-28 | 2004-10-28 | 디지타이저를 갖춘 lcd에서 디지타이저 펜의위치좌표를 측정하기 위한 방법 |
Publications (2)
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KR20060037525A true KR20060037525A (ko) | 2006-05-03 |
KR100590933B1 KR100590933B1 (ko) | 2006-06-19 |
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KR1020040086490A KR100590933B1 (ko) | 2004-10-28 | 2004-10-28 | 디지타이저를 갖춘 lcd에서 디지타이저 펜의위치좌표를 측정하기 위한 방법 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101217863B1 (ko) * | 2009-09-30 | 2013-01-03 | 주식회사 릿치마이크로웨이브 | 마이크로파를 이용한 터치 패널 및 이에 있어서 터치된 위치 검출 방법 |
WO2023198051A1 (zh) * | 2022-04-15 | 2023-10-19 | 华为技术有限公司 | 一种手写笔检测方法、***及相关装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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NL2025725B1 (en) | 2020-06-02 | 2022-01-26 | Microsoft Technology Licensing Llc | Determining a distance to an input device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6634560B1 (en) | 1999-12-14 | 2003-10-21 | Moore North America, Inc. | Radio frequency identification tagging, encoding/reading through a digitizer tablet |
GB2385673B (en) | 2002-02-20 | 2005-05-18 | Racal Instruments Ltd | Radio frequency power measurement |
KR20040035020A (ko) * | 2002-10-18 | 2004-04-29 | 엘지전자 주식회사 | 휴대용 컴퓨터의 디지타이저 패널 인식 시스템 및 인식 방법 |
KR20040085303A (ko) * | 2003-03-31 | 2004-10-08 | 비오이 하이디스 테크놀로지 주식회사 | 액정표시장치의 무선주파수신호 검출장치 및 이를 이용한무선주파수 신호 검출방법 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101217863B1 (ko) * | 2009-09-30 | 2013-01-03 | 주식회사 릿치마이크로웨이브 | 마이크로파를 이용한 터치 패널 및 이에 있어서 터치된 위치 검출 방법 |
WO2023198051A1 (zh) * | 2022-04-15 | 2023-10-19 | 华为技术有限公司 | 一种手写笔检测方法、***及相关装置 |
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KR100590933B1 (ko) | 2006-06-19 |
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