Patents Assigned to Delta Optoelectronics, Inc.
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Publication number: 20070228994Abstract: Disclosed is a driving circuit and method for a fluorescent lamp. The driving circuit comprises a power factor correction (PFC) stage, a startup stage, an isolation stage, a square-wave driving stage and an output stage. The PFC stage receives and converts an input alternating current (AC) voltage into a direct current (DC) voltage. The startup stage receives the DC voltage and adjusts the DC voltage into an operating voltage. The startup stage is connected in parallel with the square-wave driving stage. The square-wave driving stage is connected to the isolation stage and converts the operating voltage into a boosted square-wave voltage, and the output stage receives the boosted square-wave voltage to ignite the fluorescent lamp. As such, the fluorescent lamp may be rapidly and properly ignited.Type: ApplicationFiled: October 17, 2006Publication date: October 4, 2007Applicant: Delta Optoelectronics, Inc.Inventors: Jin-Chyuan Hung, Qiu-Kai Huang, Jia-Ping Ying, Yui-Shin Fran, Chang-Chun Hsiao
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Patent number: 7250716Abstract: A cold cathode flat fluorescent lamp (CCFFL) comprising a flat lamp chamber, fluorescent substance, discharge gas, and a patterned electrode is provided. The discharge gas is disposed in the gas discharge chamber. The fluorescent substance is disposed over the inner wall of the gas discharge chamber. The patterned electrode is disposed over a surface of the flat lamp chamber. In an embodiment, the patterned electrode comprises anode pairs and cathode pairs which are alternately arranged. Each anode pair comprises a first meandering anode with first protrusions and a second meandering anode with second protrusions, wherein the first protrusions and the second protrusions are staggered. Each cathode pair comprises a first meandering cathode with third protrusions and a second meandering cathode with fourth protrusions, wherein each third protrusion aligns with each second protrusion, and each fourth protrusion aligns with each first protrusion.Type: GrantFiled: May 25, 2005Date of Patent: July 31, 2007Assignee: Delta Optoelectronics, Inc.Inventors: Yui-Shin Fran, Kung-Tung Pan, Chun-Hui Tsai
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Patent number: 7218064Abstract: A cold cathode flat fluorescent lamp and a driving method for a cold cathode flat fluorescent lamp are provided. The cold cathode flat fluorescent lamp includes a lamp, a transformer and a full-bridge circuit. The lamp has at least a first electrode having a first voltage and a second electrode having a second voltage. The transformer has a primary side and a secondary side, and the full-bridge circuit is used for driving the lamp. In addition, the transformer is connected to the lamp on the secondary side and is connected to the full-bridge circuit on the primary side.Type: GrantFiled: November 15, 2005Date of Patent: May 15, 2007Assignee: Delta Optoelectronics, Inc.Inventors: Jin-Chyuan Hung, Chang-Chun Hsiao, Chuan-Chi Hsu, Kung-Tung Pan, Yui-Shin Fran
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Publication number: 20070103088Abstract: A startup method for a mercury-free flat-fluorescent lamp is provided, which comprises providing a train of voltage pulses for driving the lamp; and changing the duty circle, switching frequency, and/or operation voltage level of the driven voltage pulse during the startup period of the lamp. The above factors are properly combined to achieve the rapid ignition, the uniform light up, and the lower startup current.Type: ApplicationFiled: August 1, 2006Publication date: May 10, 2007Applicant: DELTA OPTOELECTRONICS, INC.Inventors: Chun-Hui Tsai, Jin-Chyuan Hung, Chang-Chun Hsiao, Yui-Shin Fran
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Publication number: 20070096458Abstract: An exhaust pipe being applied in a flat lamp is disclosed, which is comprised of an inner tube and an outer tube and is being arranged at a side of the flat lamp for pumping/exhausting gas therein/therefrom. The inner tube is fitted to a side of the flat lamp while enabling the same to be in communication with the discharge space of the flat lamp; and the outer tube, which is further in communication with the inner tube, is connected to a pumping/exhausting device. After performing a pumping/exhausting process upon the flat lamp by way of the exhaust pipe attached thereto, the exhaust pipe is fused to seal the flat lamp. Moreover, the residue of the fused exhaust pipe attached on the flat lamp will not cause the thickness of the flat lamp to increase, and the exhaust pipe of the invention will help to increase the mechanism strength at the joint of the exhaust pipe and the flat lamp.Type: ApplicationFiled: October 25, 2006Publication date: May 3, 2007Applicant: DELTA OPTOELECTRONICS, INC.Inventors: Jer-Shien Yang, Kuo-Chih Yang, Shih-Yuan Huang
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Publication number: 20070080648Abstract: A driving method of a cold cathode fluorescent flat lamp (CCFFL) for improving the light emitting uniformity of the cold cathode fluorescent flat lamp (CCFFL) is provided. First, a plurality of first light emitting areas and a plurality of second light emitting areas are generated alternately by the cold cathode fluorescent flat lamp (CCFFL). It is noted that the first light emitting areas and the second light emitting areas are not completely overlapped, and a frequency of alternately generating the first light emitting areas and the second light emitting areas is higher than a range that can be viewed as separate elements by unaided human eye.Type: ApplicationFiled: December 11, 2006Publication date: April 12, 2007Applicant: DELTA OPTOELECTRONICS, INC.Inventors: Yui-Shin Fran, Lai-Cheng Chen
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Patent number: 7196464Abstract: A light-emitting cell, includes a light-emitting material which can emit light in response to a collision of an electron beam; an electron-emitting unit having a carbon nanotube as an electron source for releasing the electron beam and emitting the electron beam to ram against the light-emitting material; and a gate disposed above the carbon nanotube for controlling the electron beam emitting from the carbon nanotube whether to pass through the gate to ram against the light-emitting material at a specific address wherein the gate comprises a network conductor including a first metal layer for determining an x-coordinate of the address, a second metal layer for determining a y-coordinate of the address, and an extracting electrode placed between the carbon nanotube and the first metal layer for extracting the electron beam from the carbon nanotube.Type: GrantFiled: May 16, 2003Date of Patent: March 27, 2007Assignee: Delta Optoelectronics, Inc.Inventors: Lai-Cheng Chen, Chun-Hui Tsai
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Publication number: 20070040508Abstract: A flat fluorescent lamp is disclosed. The flat fluorescent lamp comprises a gas discharge chamber, a fluorescent substance, a discharge gas, and a plurality of first and second electrodes. The fluorescent substance is disposed on an inner surface of the gas discharge chamber and the discharge gas is filled in the gas discharge chamber. An electrode pair includes the first and the second electrodes. The first and the second electrodes are disposed on different planes so that the discharge area formed between the first and the second electrodes is larger than that formed between the two electrodes on a same plane to perform better efficiency of luminance.Type: ApplicationFiled: October 25, 2006Publication date: February 22, 2007Applicants: Delta Optoelectronics, Inc., DELTA ELECTRONICS, INC.Inventors: Yu-Heng Hsieh, Chien-Hsing Lee, Jau-Shiu Chen, Lai-Cheng Chen
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Publication number: 20070037466Abstract: A lighting testing method and a testing structure for a display device are provided.Type: ApplicationFiled: July 7, 2006Publication date: February 15, 2007Applicant: Delta OptoElectronics, Inc.Inventors: Li-Chi Lin, Chien-Lang Chen, Yu-San Lee
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Publication number: 20070007880Abstract: An illuminating apparatus is provided. The illuminating apparatus comprises a lower plate, an upper plate opposing to the lower plate to form a containing space therebetween, a supporting structure mounted within the containing space and connected with the lower plate and the upper plate, and a buffer material connected with at least one of the lower plate, the upper plate and the supporting structure.Type: ApplicationFiled: June 28, 2006Publication date: January 11, 2007Applicant: DELTA OPTOELECTRONICS, INC.Inventors: Jer Yang, Kuo Yang, Jui Chen, Shih Huang, Yui Fran
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Patent number: 7148626Abstract: A flat lamp structure is disclosed. The flat lamp structure includes a gas discharge chamber, a fluorescence substance, a discharge gas, and a plurality of electrodes. The fluorescence substance is disposed on the inner wall of the gas discharge chamber, and the discharge gas is disposed in the gas discharge chamber. The electrodes are disposed on the outer wall of the gas discharge chamber, wherein the gas discharge chamber comprises a dielectric substrate, a plate, and a plurality of rods, and the plate is disposed on the upper portion of the dielectric substrate and the rods are disposed between the plate and the dielectric substrate, and the plate and the edge of dielectric are connected. Additionally, the gas discharge chamber, for example, can dispose with at least a spacer to enhance the strength of the gas discharge chamber.Type: GrantFiled: July 31, 2003Date of Patent: December 12, 2006Assignee: Delta Optoelectronics, Inc.Inventors: Yui-Shin Fran, Lai-Cheng Chen, Cheng-Yi Chang, Chien-Chung Wu, Jui-Hsia Chen, Jer-Shien Yang
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Publication number: 20060220521Abstract: An electrode structure is provided. The electrode structure contains a first auxiliary electrode and a second auxiliary electrode, a first edge electrode and a second edge electrode disposed between the first auxiliary electrode and the second auxiliary electrode, wherein the first edge electrode forming an electrode pair with the first auxiliary electrode and having a same polarity as that of the first auxiliary electrode and the second edge electrode forming an electrode pair with the second auxiliary electrode and having a same polarity as that of the second auxiliary electrode, and at least one middle electrode disposed between the first edge electrode and the second edge electrode. The electrode structure respectively enhance an interaction between the first edge electrode and the second edge electrode and a neighboring electrode by means of the first auxiliary electrode and the second auxiliary electrode. Alternatively, the width of the edge electrode increase to be 1.Type: ApplicationFiled: February 14, 2006Publication date: October 5, 2006Applicant: Delta Optoelectronics, Inc.Inventors: Jer-Shien Yang, Yen-Shan Chuang, Jen-Shou Cheng, Yui-Shin Fran
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Publication number: 20060181223Abstract: A cold cathode flat fluorescent lamp and a driving method for a cold cathode flat fluorescent lamp are provided. The cold cathode flat fluorescent lamp includes a lamp, a transformer and a full-bridge circuit. The lamp has at least a first electrode having a first voltage and a second electrode having a second voltage. The transformer has a primary side and a secondary side, and the full-bridge circuit is used for driving the lamp. In addition, the transformer is connected to the lamp on the secondary side and is connected to the full-bridge circuit on the primary side.Type: ApplicationFiled: November 15, 2005Publication date: August 17, 2006Applicant: DELTA OPTOELECTRONICS, INC.Inventors: Jin-Chyuan Hung, Chang-Chun Hsiao, Chuan-Chih Hsu, Kung-Tung Pan, Yui-Shin Fran
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Patent number: 6984546Abstract: A method is to form a thin film light emitting device. The method includes providing a transparent substrate. A transparent anode layer, a light emitting layer, a metal cathode layer are sequentially formed on the transparent substrate. A sealant layer is formed to at least cover the light emitting layer and the metal cathode layer. A covering layer having a covering surface is provided. An evaporation process is performed to form an active absorption layer on the covering surface of the covering layer. The covering surface of the covering layer covers on a portion of the sealant layer above the metal cathode layer. The covering layer can have a recess region that is to be formed the active absorption layer thereon. Alternatively, the active absorption layer can be evaporated before the sealant is formed. Moreover, the active absorption layer can be replaced with an insulating layer.Type: GrantFiled: May 4, 2001Date of Patent: January 10, 2006Assignee: Delta Optoelectronics, Inc.Inventors: Chen Lai Cheng, Tseng Chiu Fen, Jui-Fen Pai, Yi-Hung Chou, Yung-Yuan Chen, Ping-Song Wang
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Patent number: 6933669Abstract: A planar fluorescent lamp having a first panel, a second panel, a glass rim, a venting tube, and a set of electrodes. Fluorescent layers are formed on both the first panel and the second panel. The glass rim is mounted on edges of the first and second panels. A recess and a gap are formed in the glass rim; the recess is used for placing the electrodes while the gap is reserved for installing the venting tube. The first panel, the second panel, and the glass rim are so arranged so that a cavity is formed thereby. The cavity is vacuumed via the venting tube and mercury vapor and inert gas are then introduced into the cavity.Type: GrantFiled: October 17, 2001Date of Patent: August 23, 2005Assignee: Delta Optoelectronics, Inc.Inventors: Ruey-Feng Jean, Chih-Fang Chen, Kuang-Lung Tsai, Lai-Cheng Chen, Shih-Hsien Lin, Shien-Tsung Chiang, Chun-Chien Chen, Cheng-Yi Chang
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Patent number: 6797985Abstract: An active matrix organic light-emitting diode and manufacturing method thereof is provided. A thin film transistor having a gate, a source and a drain is formed over a substrate. An anode layer is formed over the substrate such that the anode layer connects electrically with the source terminal of the thin film transistor. An organic layer is formed to cover the anode layer and the thin film transistor. The organic layer between the source and the drain serves as a channel region of the thin film transistor. A cathode layer is formed over the organic layer. Since the molecules inside the organic layer are aligned in a direction from the source to the drain and perpendicular to a direction from the anode layer to the cathode layer, electron mobility at the channel region is enhanced and the emitting efficiency of the diode is increased.Type: GrantFiled: August 5, 2003Date of Patent: September 28, 2004Assignee: Delta Optoelectronics, Inc.Inventors: Hsin-Fei Meng, Lai-Cheng Chen, Sheng-fu Horng, Lichi Lin
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Publication number: 20040169458Abstract: A carbon nanotube (CNT) field emission display has a cathode substrate having a cathode layer patterned on a glass substrate. The surface of the cathode layer is defined as a plurality of electron-emitting areas apart from each other, and a plurality of CNT structures is grown on the plurality of electron-emitting areas respectively.Type: ApplicationFiled: March 4, 2004Publication date: September 2, 2004Applicant: DELTA OPTOELECTRONICS, INC.Inventors: Yui-Shin Fran, Lai-Cheng Chen
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Patent number: 6774548Abstract: A carbon nanotube (CNT) field emission display has a cathode substrate having a cathode layer patterned on a glass substrate. The surface of the cathode layer is defined as a plurality of electron-emitting areas apart from each other, and a plurality of CNT structures is grown on the plurality of electron-emitting areas respectively.Type: GrantFiled: December 11, 2001Date of Patent: August 10, 2004Assignee: Delta Optoelectronics, Inc.Inventors: Yui-Shin Fran, Lai-Cheng Chen
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Patent number: 6724143Abstract: A packaging structure for an OLED/PLED device. The packaging structure has a glass substrate on which a luminescent element is completed, and a sealing cap bonded to the rim of the glass substrate so as to seal the luminescent element within an airtight space. Also, a sealing agent is disposed between the rims of the sealing cap and the glass substrate, wherein the sealing agent is an alloy with a low eutectic point about 100˜300° C.Type: GrantFiled: May 24, 2002Date of Patent: April 20, 2004Assignee: Delta Optoelectronics, Inc.Inventors: Lai-Cheng Chen, Wen-Tsang Liu, Ping-Song Wang, Chun-Hui Tsai
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Publication number: 20040069017Abstract: A display element has a luminescent body formed on a glass substrate, a glass cap with the rim bonded to the rim of the glass substrate, and a sealing layer of frit formed on the bonding region between the glass substrate and the glass cap. In encapsulating, the display element is placed between a pedestal an a pressing plate, and then a high-power laser beam is provided to penetrate the glass cap to focus on the sealing layer, resulting in sintering frit. Also, pressure is applied to the pedestal and the pressing plate.Type: ApplicationFiled: October 7, 2003Publication date: April 15, 2004Applicant: DELTA OPTOELECTRONICS INC.Inventors: Chien-Hsing Li, Chun-Chien Chen, Jiun-Wei Tsai, Cheng-Nan Yeh, Lai-Cheng Chen