Patents by Inventor Tien-Rong Lu

Tien-Rong Lu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20030205709
    Abstract: A thin-film-transistor organic electroluminescent device comprises: a substrate; a plurality of stripes of first conductive lines; a plurality of stripes of second conductive lines, intersecting the first conductive lines; a plurality of functional elements located at the intersections of the first conductive lines and the second conductive lines, including a transistor having a drain, a source and a gate; a cathode mounted on the surface of the substrate and connected to the drain; an anode mounted on the cathode; and at least one organic electroluminescent medium sandwiched between the cathode and the anode; wherein the cathode and the first conductive lines are made of the same material.
    Type: Application
    Filed: May 2, 2003
    Publication date: November 6, 2003
    Applicant: RiTdisplay Corporation
    Inventor: Tien-Rong Lu
  • Publication number: 20030207482
    Abstract: A method for fabricating a low temperature polysilicon organic electroluminescent substrate comprises the following steps: providing a substrate; forming an amorphous silicon layer on the substrate; forming a plurality of patterned transistor elements each having a patterned source, a patterned drain and a patterned gate in the amorphous silicon layer by photolithography and ion doping; annealing the patterned transistor element having the patterned source, drain and gate by excimer laser; forming a plurality of patterned stripe second conductive lines connected to the gates on the surface of the substrate; forming a patterned isolation layer on the gate layer, and also forming a plurality of patterned stripe first conductive lines and a patterned first electrode on the substrate; forming at least one organic electroluminescent medium on the first electrode; and forming a second electrode layer on the organic electroluminescent medium.
    Type: Application
    Filed: May 2, 2003
    Publication date: November 6, 2003
    Applicant: RiTdisplay Corporation
    Inventor: Tien-Rong Lu
  • Patent number: 6630785
    Abstract: A surface treatment process for fabricating a panel of an organic light emitting device is disclosed.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: October 7, 2003
    Assignee: Ritdisplay Corporation
    Inventor: Tien-Rong Lu
  • Patent number: 6616496
    Abstract: A method of forming a polyimide-isolating wall including the steps of: a coating process for coating a photosensitive-polyimide isolating wall on an organic electroluminescent display panel; a prebaking process; an exposure process; a post-exposure baking process; a developing process for shaping the polyimide-isolating wall as a reverse-trapezoid cross section; and a curing process for making the polyimide-isolating wall possess electric, thermal and mechanical stability.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: September 9, 2003
    Assignee: Ritdisplay Corporation
    Inventor: Tien-Rong Lu
  • Patent number: 6613156
    Abstract: A photoresist stripping apparatus and a corresponding method for removing photoresist layers after a patterned polyimide layer is developed. The photoresist-stripping apparatus includes a transporting unit, a stripping unit, a washing unit, a drying unit and a control unit. The transporting unit connects the stripping unit, the washing unit and the drying unit. The control unit is responsible for controlling the transport sequence and timing of the transporting unit. The method of stripping the photoresist layer off the OLED panel includes providing a stripping solution to the stripping unit to remove photoresist layers. The OLED panel is jet-cleaned with a washing solution in the washing unit so that any residual stripping agent is removed. Finally, the surface of the OLED panel is blown dry.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: September 2, 2003
    Assignee: Ritek Display Technology Corporation
    Inventors: Yih Chang, Tien-Rong Lu
  • Publication number: 20030157740
    Abstract: A method of the invention for forming a pixel-defining layer on an OLED panel is disclosed.
    Type: Application
    Filed: March 20, 2003
    Publication date: August 21, 2003
    Applicant: RITDISPLAY CORPORATION
    Inventors: Tien-Rong Lu, Yih Chang
  • Publication number: 20030143491
    Abstract: A developing apparatus for organic electroluminescent display panels comprises a developing unit for supplying a developing solution to be uniformly dispensed to the surface of an organic electroluminescent display panel by immersing the organic electroluminescent display panel into the developing solution or spreading the developing solution over the organic electroluminescent display panel, a cleaning unit having at least a bath connected to the end of the developing unit for spraying a recycled cleaning liquid or cleaning liquid over the organic electroluminescent display panel, a drying unit having at least an airflow driers, and a transporting unit for transporting the electroluminescent display panel; wherein the organic electroluminescent display panel is transported at a constant speed by the transporting unit of the developing apparatus.
    Type: Application
    Filed: December 31, 2002
    Publication date: July 31, 2003
    Applicant: Ritdisplay Corporation
    Inventors: Tien-Rong Lu, Yih Chang
  • Publication number: 20030136714
    Abstract: A vapor transferring apparatus for purification of organic functional materials is disclosed, which comprises a furnace having at least a furnace gate, furnace walls, and a heater; wherein said furnace gate is mounted on said furnace walls of said heater; at least a glove box having at least a box gate, box walls, and at least one glove; wherein said box gate is mounted on said box walls of said glove box; and a shifting chamber having at least a valve and at least a surrounding wall, locating between and connecting with said furnace gate of said furnace or said box gate of said glove box; wherein said valve is mounted on said surrounding wall of said shifting chamber; wherein the heater, the glove box, and the shifting chamber are hermetical and hollow.
    Type: Application
    Filed: November 1, 2002
    Publication date: July 24, 2003
    Applicant: RITDISPLAY CORPORATION
    Inventors: Tien-Rong Lu, Jinna-Shyng Shiue, Jih-Sheng Shiu
  • Publication number: 20030116088
    Abstract: A deposition apparatus for organic light emitting devices. The deposition apparatus includes a substrate conveying system and at least a chamber. In this case, the substrate conveying system is a circular turntable shape. The chambers are provided around the substrate conveying system in a specific order. While the substrate conveying system rotates in a circular direction, at least a substrate is transferred into the chambers for deposition. After the deposition, at least a layer is deposited on each of the substrates, so as to manufacture at least an organic light-emitting device.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 26, 2003
    Inventors: Yi Chang, Jih-Yi Wang, Mao-Kuo Wei, Tien-Rong Lu
  • Publication number: 20030117794
    Abstract: A flat color-shift medium which is positioned on a backlight of an organic light-emitting source. The flat color-shift medium is made of uniformly mixed fluorescent materials, each of which has a specific dose ratio. Due to the microcosmic light-color mixing effect of the fluorescent materials, the flat color-shift medium could shift an original spectrum of shorter wavelength into a desired spectrum of longer wavelength.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 26, 2003
    Inventors: Tien-Rong Lu, Mao-Kuo Wei, Shea-Jue Wang
  • Patent number: 6559604
    Abstract: A method of the invention for forming a pixel-defining layer on an OLED panel is disclosed.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: May 6, 2003
    Assignee: Ritdisplay Corporation
    Inventors: Tien-Rong Lu, Yih Chang
  • Publication number: 20020145382
    Abstract: Here discloses a method has following steps: a coating process for coating a photosensitive-polyimide isolating wall on an organic electroluminescent display panel; a prebaking process; an exposure process; a post-exposure baking process; a developing process for shaping the polyimide-isolating wall as a reverse-trapezoid cross-section; and a curing process for making the polyimide-isolating wall possess electric, thermal and mechanical stability. This improves the stability and lifetime of the organic electroluminescent display panel.
    Type: Application
    Filed: May 30, 2002
    Publication date: October 10, 2002
    Applicant: Ritek Corporation
    Inventor: Tien-Rong Lu
  • Patent number: 6456358
    Abstract: The present invention provides a surface-treatment apparatus for forming a plurality of photoresist-isolating walls on an organic electroluminescent panel. The surface-treatment apparatus has a photoresist-coating module, a prebaking unit, an exposure unit, a post-exposure surface treatment module with an alkaline atmosphere, a development module and a hard baking unit. The photoresist-coating module coats a photoresist layer on the surface of the organic electroluminescent panel. The prebaking unit bakes the photoresist layer on the organic electroluminescent panel by a heating plate and initially drives solvents from the photoresist layer. The exposure unit performs an UV exposure process on the photoresist layer after the prebaking. The post-exposure surface treatment module with an alkaline atmosphere bakes the photoresist layer by a heating plate after the exposure process, wherein the alkaline atmosphere surfacely terminates a self-catalyzed reaction of photo-acid ions of the photoresist layer.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: September 24, 2002
    Assignee: Ritek Display Technology Co.
    Inventor: Tien-Rong Lu
  • Publication number: 20020124875
    Abstract: A photoresist stripping apparatus and a corresponding method for removing photoresist layers after a patterned polyimide layer is developed. The photoresist-stripping apparatus includes a transporting unit, a stripping unit, a washing unit, a drying unit and a control unit. The transporting unit connects the stripping unit, the washing unit and the drying unit. The control unit is responsible for controlling the transport sequence and timing of the transporting unit. The method of stripping the photoresist layer off the OLED panel includes providing a stripping solution to the stripping unit to remove photoresist layers. The OLED panel is jet-cleaned with a washing solution in the washing unit so that any residual stripping agent is removed. Finally, the surface of the OLED panel is blown dry.
    Type: Application
    Filed: January 23, 2001
    Publication date: September 12, 2002
    Inventors: Yih Chang, Tien-Rong Lu
  • Publication number: 20020108267
    Abstract: A method and an apparatus for transporting substrates in all organic light emitting diode (OLED) process is disclosed, which has a transferring chamber provided for transporting substrates between processing modules and the atmosphere condition therein is able to be adjusted to be the same as the processing module by an atmosphere conditioner unit. According to the present invention, the substrates are not contaminated by moisture and the process operation and the factory layout are more flexible. Moreover, the OLED yield is improved.
    Type: Application
    Filed: April 18, 2002
    Publication date: August 15, 2002
    Applicant: Ritek Display Technology Co.
    Inventors: Yih Chang, Jung-Lung Liu, Chih-Jen Yang, Chih-Ming Kuo, Jih-Yi Wang, Tien-Rong Lu
  • Patent number: 6393716
    Abstract: A method and an apparatus for transporting substrates in an organic light emitting diode (OLED) process is disclosed, which has a transferring chamber provided for transporting substrates between processing modules and the atmosphere condition therein is able to be adjusted to be the same as the processing module by an atmosphere conditioner unit. According to the present invention, the substrates are not contaminated by moisture and the process operation and the factory layout are more flexible. Moreover, the OLED yield is improved.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: May 28, 2002
    Assignee: Ritek Display Technology Co.
    Inventors: Yih Chang, Jung-Lung Liu, Chih-Jen Yang, Chih-Ming Kuo, Jih-Yi Wang, Tien-Rong Lu
  • Patent number: 6343882
    Abstract: An apparatus for developing a pixel-defining layer of an organic light emitting diode (OLED) display panel. The apparatus has a developing unit, a cleaning unit, a drying unit, a conveying unit and a control unit. The conveying unit transports the display panel to each of the connected units. The control unit determines a conveying order and a conveying time of the conveying unit so as to precisely control a processing time of the display panel in each of the units connected with the conveying unit. The conveying unit continuously transports the display panel to the developing unit, the cleaning unit and the drying unit in sequence to complete the developing process. Thereby, the apparatus can precisely control the predetermined developing time, the quality of pixel-defining layers and effectively reduce the period of the developing process and the labor cost.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: February 5, 2002
    Assignee: Ritek Corporation
    Inventors: Yih Chang, Tien-Rong Lu
  • Publication number: 20010035393
    Abstract: A method of the invention for forming a pixel-defining layer on an OLED panel is disclosed.
    Type: Application
    Filed: February 26, 2001
    Publication date: November 1, 2001
    Inventors: Tien-Rong Lu, Yih Chang
  • Publication number: 20010035714
    Abstract: A method for forming a pixel-defining layer on an OLED panel is disclosed. The method comprising (A) providing a substrate; (B) forming a plurality of first electrodes in parallel stripes; (C) forming a layer of photosensitive polyimide or polyimide precursor compositions with patterns; and (D) baking said substrate with patterned photosensitive polyimide or polyimide precursor compositions for crosslinking or curing. An OLED panel made by above method is also disclosed here.
    Type: Application
    Filed: February 26, 2001
    Publication date: November 1, 2001
    Inventor: Tien-Rong Lu