Patents by Inventor Prashant Mandlik

Prashant Mandlik 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).

  • Patent number: 10164000
    Abstract: A first device that may include a short tolerant structure, and methods for fabricating embodiments of the first device, are provided. A first device may include a substrate and a plurality of OLED circuit elements disposed on the substrate. Each OLED circuit element may include a fuse that is adapted to open an electrical connection in response to an electrical short in the pixel. Each OLED circuit element may comprise a pixel that may include a first electrode, a second electrode, and an organic electroluminescent (EL) material disposed between the first and the second electrodes. Each of the OLED circuit elements may not be electrically connected in series with any other of the OLED circuit elements.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: December 25, 2018
    Assignee: Universal Display Corporation
    Inventors: Ruiqing Ma, Huiqing Pang, Peter Levermore, Prashant Mandlik, Jeffrey Silvernail, Kamala Rajan, Jason Paynter
  • Publication number: 20180175325
    Abstract: In some embodiments, a first product is provided. The first product may include a substrate, a device having a device footprint disposed over the substrate, and a barrier film disposed over the substrate and substantially along a side of the device footprint. The barrier film may comprise a mixture of a polymeric material and non-polymeric material. The barrier film may have a perpendicular length that is less than or equal to 3.0 mm from the side of the device footprint.
    Type: Application
    Filed: February 20, 2018
    Publication date: June 21, 2018
    Inventors: Prashant MANDLIK, Ruiqing MA, Julia J. BROWN
  • Publication number: 20180174505
    Abstract: An electronic device may have a flexible display such as an organic light-emitting diode display. A strain sensing resistor may be formed on a bent tail portion of the flexible display to gather strain measurements. Resistance measurement circuitry in a display driver integrated circuit may make resistance measurements on the strain sensing resistor and a temperature compensation resistor to measure strain. A crack detection line may be formed from an elongated pair of traces that are coupled at their ends to form a loop. The crack detection line may run along a peripheral edge of the flexible display. Crack detection circuitry may monitor the resistance of the crack detection line to detect cracks. The crack detection circuitry may include switches that adjust the length of the crack detection line and thereby allow resistances to be measured for different segments of the line.
    Type: Application
    Filed: February 13, 2018
    Publication date: June 21, 2018
    Inventors: Prashant Mandlik, Bhadrinarayana Lalgudi Visweswaran, Izhar Z Ahmed, Zhen Zhang, Tsung-Ting Tsai, Ki Yeol Byun, Yu Cheng Chen, Sungki Lee, Mohammad Hajirostam, Sinan Alousi
  • Patent number: 9991463
    Abstract: Embodiments of the present invention provide electronic devices such as OLEDs that have enhanced mechanical integrity and prolonged shelf, by minimizing the spread of a delamination region using topographical non-uniformities introduced in the device structure. For example, a device may be made deliberately non-planar by introducing multiple energy barriers which can prevent or minimize the propagation of a delamination, because the delamination will have to cross the energy barriers in order to spread to a larger area.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: June 5, 2018
    Assignee: Universal Display Corporation
    Inventors: Prashant Mandlik, Ruiqing Ma, Siddharth Harikrishna Mohan
  • Patent number: 9923168
    Abstract: In some embodiments, a first product is provided. The first product may include a substrate, a device having a device footprint disposed over the substrate, and a barrier film disposed over the substrate and substantially along a side of the device footprint. The barrier film may comprise a mixture of a polymeric material and non-polymeric material. The barrier film may have a perpendicular length that is less than or equal to 3.0 mm from the side of the device footprint.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: March 20, 2018
    Assignee: Universal Display Corporation
    Inventors: Prashant Mandlik, Ruiqing Ma, Julia J. Brown
  • Publication number: 20180053466
    Abstract: An electronic device may have a flexible display such as an organic light-emitting diode display. A strain sensing resistor may be formed on a bent tail portion of the flexible display to gather strain measurements. Resistance measurement circuitry in a display driver integrated circuit may make resistance measurements on the strain sensing resistor and a temperature compensation resistor to measure strain. A crack detection line may be formed from an elongated pair of traces that are coupled at their ends to form a loop. The crack detection line may run along a peripheral edge of the flexible display. Crack detection circuitry may monitor the resistance of the crack detection line to detect cracks. The crack detection circuitry may include switches that adjust the length of the crack detection line and thereby allow resistances to be measured for different segments of the line.
    Type: Application
    Filed: September 23, 2016
    Publication date: February 22, 2018
    Inventors: Rui Zhang, Mohammad Hajirostam, Hung Sheng Lin, Mohammad B. Vahid Far, Sang Y. Youn, Zhen Zhang, Prashant Mandlik, Sun-Il Chang, Jie Won Ryu, Shengkui Gao, Hyunwoo Nho, Wei H. Yao, Yafei Bi, Yun Wang
  • Patent number: 9882167
    Abstract: A method for protecting an electronic device comprising an organic device body. The method involves the use of a hybrid layer deposited by chemical vapor deposition. The hybrid layer comprises a mixture of a polymeric material and a non-polymeric material, wherein the weight ratio of polymeric to non-polymeric material is in the range of 95:5 to 5:95, and wherein the polymeric material and the non-polymeric material are created from the same source of precursor material. Also disclosed are techniques for impeding the lateral diffusion of environmental contaminants.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: January 30, 2018
    Assignees: The Trustees of Princeton University, Universal Display Corporation
    Inventors: Prashant Mandlik, Sigurd Wagner, Jeffrey A. Silvernail, Ruiqing Ma, Julia J. Brown, Lin Han
  • Publication number: 20170358632
    Abstract: A first device that may include a short tolerant structure, and methods for fabricating embodiments of the first device, are provided. A first device may include a substrate and a plurality of OLED circuit elements disposed on the substrate. Each OLED circuit element may include a fuse that is adapted to open an electrical connection in response to an electrical short in the pixel. Each OLED circuit element may comprise a pixel that may include a first electrode, a second electrode, and an organic electroluminescent (EL) material disposed between the first and the second electrodes. Each of the OLED circuit elements may not be electrically connected in series with any other of the OLED circuit elements.
    Type: Application
    Filed: May 25, 2017
    Publication date: December 14, 2017
    Inventors: Ruiqing MA, Huiqing PANG, Peter LEVERMORE, Prashant MANDLIK, Jeffrey SILVERNAIL, Kamala RAJAN, Jason PAYNTER
  • Patent number: 9735392
    Abstract: A method of preparing a surface for deposition of a thin film thereon, wherein the surface including a plurality of protrusions extending therefrom and having shadowed regions, includes locally treating at least one of the protrusions.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: August 15, 2017
    Assignee: Universal Display Corporation
    Inventors: Ruiqing Ma, Chuanjun Xia, Prashant Mandlik
  • Patent number: 9704942
    Abstract: A first device that may include a short tolerant structure, and methods for fabricating embodiments of the first device, are provided. A first device may include a substrate and a plurality of OLED circuit elements disposed on the substrate. Each OLED circuit element may include a fuse that is adapted to open an electrical connection in response to an electrical short in the pixel. Each OLED circuit element may comprise a pixel that may include a first electrode, a second electrode, and an organic electroluminescent (EL) material disposed between the first and the second electrodes. Each of the OLED circuit elements may not be electrically connected in series with any other of the OLED circuit elements.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: July 11, 2017
    Assignee: Universal Display Corporation
    Inventors: Ruiqing Ma, Huiqing Pang, Peter Levermore, Prashant Mandlik, Jeffrey Silvernail, Kamala Rajan, Jason Paynter
  • Publication number: 20170187006
    Abstract: A method of forming microelectronic systems on a flexible substrate includes depositing a plurality of layers on one side of the flexible substrate. Each of the plurality of layers is deposited from one of a plurality of sources. A vertical projection of a perimeter of each one of the plurality of sources does not intersect the flexible substrate. The flexible substrate is in motion during the depositing the plurality of layers via a roll to roll feed and retrieval system.
    Type: Application
    Filed: March 15, 2017
    Publication date: June 29, 2017
    Inventors: Ruiqing Ma, Jeff Silvernail, Prashant Mandlik, Julia J. Brown, John Felts
  • Patent number: 9559314
    Abstract: Devices including multiple flexible substrates bearing organic light-emitting diodes (OLEDs) are provided. The flexible substrates are interconnected, and the properties of the substrates and the interconnections provide the shape of the device.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: January 31, 2017
    Assignee: Universal Display Corporation
    Inventors: Kamala Rajan, Emory Krall, Prashant Mandlik, Ruiqing Ma, Peter Levermore, Huiqing Pang, Jeffrey Silvernail
  • Publication number: 20170018732
    Abstract: A method for protecting an electronic device comprising an organic device body. The method involves the use of a hybrid layer deposited by chemical vapor deposition. The hybrid layer comprises a mixture of a polymeric material and a non-polymeric material, wherein the weight ratio of polymeric to non-polymeric material is in the range of 95:5 to 5:95, and wherein the polymeric material and the non-polymeric material are created from the same source of precursor material. Also disclosed are techniques for impeding the lateral diffusion of environmental contaminants.
    Type: Application
    Filed: January 28, 2016
    Publication date: January 19, 2017
    Inventors: Prashant Mandlik, Sigurd Wagner, Jeffrey A. Silvernail, Ruiqing Ma, Julia J. Brown, Lin Han
  • Patent number: 9455417
    Abstract: A device includes a first electrode, an organic layer disposed over the first electrode and a second electrode disposed over the organic layer. The second electrode includes a first conductive layer, a first separation layer disposed over the first conductive layer, and a second conductive layer disposed over the first separation layer, wherein the first separation layer is not a continuous layer and the first and second conductive layers are bridged where the first separation layer is not continuous. The first separation layer has an extinction coefficient that is at least 10% different from the extinction coefficient of the first conductive layer at wavelength 500 nm, or an index of refraction that is at least 10% different from the index of refraction of the first conductive layer at wavelength 500 nm.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: September 27, 2016
    Assignee: Universal Display Corporation
    Inventors: Prashant Mandlik, Ruiqing Ma
  • Publication number: 20160226022
    Abstract: In some embodiments, a first product is provided. The first product may include a substrate, a device having a device footprint disposed over the substrate, and a barrier film disposed over the substrate and substantially along a side of the device footprint. The barrier film may comprise a mixture of a polymeric material and non-polymeric material. The barrier film may have a perpendicular length that is less than or equal to 3.0 mm from the side of the device footprint.
    Type: Application
    Filed: April 11, 2016
    Publication date: August 4, 2016
    Inventors: Prashant Mandlik, Ruiqing Ma, Julia J. Brown
  • Publication number: 20160133838
    Abstract: A method of forming microelectronic systems on a flexible substrate includes depositing (typically sequentially) on a first side of the flexible substrate at least one organic thin film layer, at least one electrode and at least one thin film encapsulation layer over the at least one organic thin film layer and the at least one electrode, wherein depositing the at least one organic thin film layer, depositing the at least one electrode and depositing the at least one thin film encapsulation layer each occur under vacuum and wherein no physical contact of the at least one organic thin film layer or the at least one electrode with another solid material occurs prior to depositing the at least one thin film encapsulation layer.
    Type: Application
    Filed: January 15, 2016
    Publication date: May 12, 2016
    Inventors: Ruiqing Ma, Jeffrey Silvernail, Prashant Mandlik, Julia J. Brown, John Felts
  • Publication number: 20160118623
    Abstract: A method of preparing a surface for deposition of a thin film thereon, wherein the surface including a plurality of protrusions extending therefrom and having shadowed regions, includes locally treating at least one of the protrusions.
    Type: Application
    Filed: January 6, 2016
    Publication date: April 28, 2016
    Inventors: Ruiqing MA, Chuanjun XIA, Prashant MANDLIK
  • Patent number: 9312511
    Abstract: In some embodiments, a first product is provided. The first product may include a substrate, a device having a device footprint disposed over the substrate, and a barrier film disposed over the substrate and substantially along a side of the device footprint. The barrier film may comprise a mixture of a polymeric material and non-polymeric material. The barrier film may have a perpendicular length that is less than or equal to 3.0 mm from the side of the device footprint.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: April 12, 2016
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Prashant Mandlik, Ruiqing Ma, Julia J. Brown
  • Publication number: 20160079313
    Abstract: A first device that may include a short tolerant structure, and methods for fabricating embodiments of the first device, are provided. A first device may include a substrate and a plurality of OLED circuit elements disposed on the substrate. Each OLED circuit element may include a fuse that is adapted to open an electrical connection in response to an electrical short in the pixel. Each OLED circuit element may comprise a pixel that may include a first electrode, a second electrode, and an organic electroluminescent (EL) material disposed between the first and the second electrodes. Each of the OLED circuit elements may not be electrically connected in series with any other of the OLED circuit elements.
    Type: Application
    Filed: November 12, 2015
    Publication date: March 17, 2016
    Inventors: Ruiqing MA, Huiqing PANG, Peter LEVERMORE, Prashant MANDLIK, Jeffrey SILVERNAIL, Kamala RAJAN, Jason PAYNTER
  • Patent number: 9252391
    Abstract: A method for protecting an electronic device comprising an organic device body. The method involves the use of a hybrid layer deposited by chemical vapor deposition. The hybrid layer comprises a mixture of a polymeric material and a non-polymeric material, wherein the weight ratio of polymeric to non-polymeric material is in the range of 95:5 to 5:95, and wherein the polymeric material and the non-polymeric material are created from the same source of precursor material. Also disclosed are techniques for impeding the lateral diffusion of environmental contaminants.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: February 2, 2016
    Assignees: The Trustees of Princeton University, Universal Display Corporation
    Inventors: Prashant Mandlik, Sigurd Wagner, Jeffrey A. Silvernail, Ruiqing Ma, Julia J. Brown, Lin Han