[특허]Photopolymerization apparatus

[미국특허] Photopolymerization apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H05B-037/02
출원번호	US-0907140 (2001-07-17)
발명자 / 주소	Fregoso, Gilbert
출원인 / 주소	Design Rite, LLC
대리인 / 주소	Saliwanchk, Lloyd & Saliwanchik
인용정보	피인용 횟수 : 71 인용 특허 : 9

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A light-weight, portable photocuring device possesses a single light emitting diode (LED). The single LED backed with a heat sink is driven by a driving circuit and controlled by a timing circuit. A temperature monitor can be included in a closed loop to feed back and control the driver. Lenses and/or light guides in the device act to further direct the light. mmon power supply; a plurality of driving elements each connected in series with each said electro-optical display element, connected to said common power supply, and applied with a bias voltage to drive each said electro-optical display element for display; and a plurality of memory control circuits each for holding said signal voltage in response to said scanning signal to control driving of each said driving element based on said held signal voltage, wherein each said memory control circuit samples and holds said signal voltage while blocking a bias voltage from being applied to each said driving element, and subsequently applies each said driving element with said held signal voltage as said bias voltage. 2. An image display apparatus according to claim 1, further comprising: a plurality of inverted scanning wires each arranged in parallel with each said scanning wire for transmitting an inverted scanning signal having a polarity opposite to that of said scanning signal, each said memory control circuit comprising: a main sampling switch element responsive to said scanning signal to conduct for sampling said signal voltage; a sampling capacitor for holding the signal voltage sampled by said main sampling switch element; an auxiliary sampling switch element responsive to said scanning signal to conduct for connecting one end of said sampling capacitor to a common electrode; and a main driving switch element connected to the one end of said sampling capacitor and to one bias voltage applying electrode of said driving element, said main driving switch element responsive to said inverted scanning signal to conduct, and each said sampling capacitor having the other end connected to the other bias voltage applying electrode of each said driving element. 3. An image display apparatus according to claim 2, wherein each said driving element comprises an n-type thin film transistor, each of said main sampling switch elements and said auxiliary sampling switch elements comprises an n-type thin film transistor, and each said main driving switch element comprises an n-type thin film transistor. 4. An image display apparatus according to claim 1, wherein each said memory control circuit comprises: a main sampling switch element responsive to said scanning signal to conduct for sampling said signal voltage; a sampling capacitor for holding the signal voltage sampled by said main sampling switch element; an auxiliary sampling switch element responsive to said scanning signal to conduct for connecting one end of said sampling capacitor to a common electrode; a main driving switch element connected to the one end of said sampling capacitor and to one bias voltage applying electrode of said driving element, main driving switch element conducting when the polarity of said scanning signal is inverted; and an auxiliary driving switch element connected to the other end of said sampling capacitor and to the other bias voltage applying electrode of said driving element, said auxiliary driving switch element conducting when the polarity of said scanning signal is inverted. 5. An image display apparatus according to claim 4, wherein each said driving element comprises a p-type thin film transistor, each of said main sampling switch elements and said auxiliary sampling switch elements comprises an n-type thin film transistor, and each of said main driving switch elements and said auxiliary driving switch elements comprises a p-type thin film transistor. 6. An image display apparatus according to claim 1, further comprising: a plurality of inverted scanning wires each arranged in parallel with each said scanning wire for transmitting an inverted scanning signal having a polarity opposite to that of said scanning signal, and each said memory control circuit comprising: a main sampling switch element responsive to said scanning signal to conduct for sampling said signal voltage; a sampling capacitor for holding the signa

이 특허에 인용된 특허 (9) 인용/피인용 타임라인 분석

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Kennedy John (23 Mollison Court Guelph ; Ontario CAX N1C 1A7), Portable led photocuring device.
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Kennedy John (11 Mollison Court Guelph ; Ontario CAX N1C 1A7 ) Kayser Roy (#307-2645 Jane Street Toronto ; Ontario CAX M3O 2J3 ), Portable light emitting apparatus with a semiconductor emitter array.
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Kennedy John (23 Mollison Court Guelph ; Ontario CAX N1C 1A7), Unbreakable disposable photocuring guide.
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[미국특허] Photopolymerization apparatus 원문보기

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이 특허에 인용된 특허 (9) 인용/피인용 타임라인 분석

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[미국특허] Photopolymerization apparatus 원문보기

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이 특허에 인용된 특허 (9) 인용/피인용 타임라인 분석

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