37 patents
Utility
OLED-based display having pixel compensation and method
2 Jan 24
An OLED display system having compensation or loss of brightness is provided, including OLED-based display pixels, a sensing system having sensors, a processor having an LIA, an LPF, and analog to digital circuitry connected to each sensor and for providing a sensor signal for each sensor.
Seonki Kim, Amalkumar P. Ghosh, Olivier Prache, Hyuk Sang Kwon
Filed: 14 Jun 22
Utility
Display comprising OLEDs having transparent top electrodes and method of forming same
12 Sep 23
Aspects of the present disclosure describe systems, methods, and structures that provide organic light-emitting diodes having high luminous efficiency and low electrical dissipation.
Fangchao Zhao, Ilyas I. Khayrullin, Chen Dong, Amalkumar P. Ghosh
Filed: 14 Jun 21
Utility
Monolithically Integrated Top-Gate Thin-Film Transistor and Light-Emitting Diode and Method of Making
29 Dec 22
Pixels and sub-pixels suitable for high-density displays are disclosed.
Seonki KIM, Amalkumar P. GHOSH
Filed: 27 Jun 22
Utility
OLED-Based Display Having Pixel Compensation and Method
22 Dec 22
An OLED display system having compensation or loss of brightness is provided, including OLED-based display pixels, a sensing system having sensors, a processor having an LIA, an LPF, and analog to digital circuitry connected to each sensor and for providing a sensor signal for each sensor.
Seonki KIM, Amalkumar P. GHOSH, Olivier PRACHE, Hyuk Sang KWON
Filed: 14 Jun 22
Utility
Large Area Display and Method for Making Same
22 Dec 22
A large area active-matrix organic light-emitting diode microdisplay and method for fabricating the same is provided which includes a panel having resolution of greater than 2,000 pixels per inch and a size of 1.4 or more inches for supporting the needs of virtual reality and augmented reality application.
Ihor Wacyk, Amalkumar P. Ghosh, Andrew G. Sculley, Jr., Olivier Prache
Filed: 18 Aug 22
Utility
Oled-based Display Having Pixel Compensation and Method
15 Dec 22
An OLED display system is provided having visual performance pixel compensation for loss of brightness, including display pixels, where each display pixel has OLED subpixels and pixel drive circuitry; a sensing system having sensors and analog to digital conversion circuitry connected to each of the sensors, and a processor to provide an image data drive signal to each of the display pixels, receive the sensor signal from the ADC circuitry for each sensor, estimate a state of degradation of at least one of the display pixels, determine a drive-signal compensation for each display pixel having an estimated state of degradation and compensate the image data drive signal to each display pixel having an estimated state of degradation.
Seonki KIM, Amalkumar P. GHOSH, Olivier PRACHE, Hyuk Sang KWON
Filed: 2 Jun 22
Utility
Apparatus and method for direct patterning of an organic material using an electrostatic mask
25 Oct 22
A deposition system that mitigates feathering in a directly deposited pattern of organic material is disclosed.
Munisamy Anandan, Amalkumar P. Ghosh
Filed: 15 Sep 20
Utility
Large area display and method for making same
6 Sep 22
A large area active-matrix organic light-emitting diode microdisplay and method for fabricating the same is provided which includes a panel having resolution of greater than 2,000 pixels per inch and a size of 1.4 or more inches for supporting the needs of virtual reality and augmented reality application.
Ihor Wacyk, Amalkumar P. Ghosh, Andrew G. Sculley, Jr., Olivier Prache
Filed: 20 Sep 17
Utility
Microdisplay with reduced pixel size and method of forming same
9 Aug 22
A vertically stacked pixel circuit is provided that includes a high voltage device for driving a pixel on an upper silicon layer, and low voltage circuitry (such as matrix addressing circuitry, data storage circuitry and uniformity compensation circuitry) on a lower silicon layer.
Ihor Wacyk
Filed: 16 Feb 21
Utility
Linear source apparatus, system and method of use
26 Apr 22
A linear evaporation apparatus, system and method including a conductance chamber including a linear output section configured to emit a linear source deposition flux therethrough, an evaporative vapor communication conduit including an evaporative vapor mixing chamber and a plurality of crucible-receiving apertures at distal ends from the evaporative vapor mixing chamber, wherein the evaporative vapor mixing chamber is in communication with the conductance chamber and configured to transmit the linear source deposition flux therethrough, and a plurality of crucibles, each of the plurality of crucibles corresponding to one of the plurality of crucible-receiving apertures at the distal ends from the evaporative vapor mixing chamber, each of the plurality of crucibles configured to hold a material and heat the material to a corresponding material evaporation temperature, each of the plurality of crucibles further including a vapor pressure activated lid configured to open at a predetermined material vapor pressure value generated by heating the crucibles to at least the corresponding material evaporation temperature.
Tariq Ali, Ilyas I. Khayrullin, Amalkumar P. Ghosh, Evan P. Donoghue, Qi Wang, Fridrich Vazan, Kerry Tice, Laurie Sziklas
Filed: 16 Sep 20
Utility
High-precision shadow-mask-deposition system and method therefor
15 Mar 22
A direct-deposition system forming a high-resolution pattern of material on a substrate is disclosed.
Amalkumar P. Ghosh, Fridrich Vazan, Munisamy Anandan, Evan Donoghue, Ilyas I. Khayrullin, Tariq Ali, Kerry Tice
Filed: 20 Jul 17
Utility
Microdisplay based immersive headset
22 Feb 22
An immersive headset device is provided that includes a display portion and a body portion.
Jerome T. Carollo, Amal Ghosh, John Chi-Liang Ho, Andrew Thomas Manning Rosen
Filed: 17 Jan 20
Utility
Display Comprising OLEDs Having Transparent Top Electrodes and Method of Forming Same
23 Dec 21
Aspects of the present disclosure describe systems, methods, and structures that provide organic light-emitting diodes having high luminous efficiency and low electrical dissipation.
Fangchao ZHAO, Ilyas I. KHAYRULLIN, Chen DONG, Amalkumar P. GHOSH
Filed: 14 Jun 21
Utility
Mechanically Pre-biased Shadow Mask and Method of Formation
11 Nov 21
Shadow masks comprising a multi-layer membrane having a mechanical pre-bias that compensates the effect of gravity on the membrane are disclosed.
James A. WALKER
Filed: 20 Jul 21
Utility
Shadow mask comprising a gravity-compensation layer and method of fabrication
19 Oct 21
A shadow mask that includes compensation layer operative for at least partially correcting gravity-induced sag of a shadow-mask membrane is disclosed.
Fridrich Vazan, Evan P. Donoghue, Ilyas I. Khayrullin, Tariq Ali, Kerry Tice, Amalkumar P. Ghosh
Filed: 1 May 18
Utility
Method of designing and fabricating a microlens array
19 Oct 21
In a method for designing and fabricating a micro-lens array, a design is finalized by varying certain features of a shadow mask, varying a distance between a source of lens-forming material and the shadow mask, and varying other parameters until the features and distances result in the formation of a micro-lens having desired shape, etc.
Ilyas I. Khayrullin, Amalkumar P. Ghosh, Ihor Wacyk, Evan Donoghue, Tariq Ali, Qi Wang, Kerry Tice
Filed: 26 Jan 18
Utility
Direct-Deposition System Including Standoffs for Controlling Substrate-Mask Separation
16 Sep 21
The present disclosure enables high-resolution direct patterning of a material on a substrate by establishing and maintaining a separation between a shadow mask and a substrate based on the thickness of a plurality of standoffs.
Evan P. DONOGHUE, Fridrich VAZAN, Kerry TICE, Ilyas I. KHAYRULLIN, Tariq ALI, Qi WANG, Laurie SZIKLAS, Amalkumar P. GHOSH
Filed: 28 May 21
Utility
High resolution shadow mask with tapered pixel openings
14 Sep 21
Aspects of the present disclosure are directed to systems, method, and structures including a high-resolution shadow mask with tapered aperture/pixel openings that advantageously overcomes problems plaguing the prior art namely shadowing, sagging, and fragility.
Evan P. Donoghue, Ilyas I. Khayrullin, Kerry Tice, Tariq Ali, Qi Wang, Fridrich Vazan, Amalkumar P. Ghosh
Filed: 1 Nov 18
Utility
Mechanically pre-biased shadow mask and method of formation
24 Aug 21
Shadow masks comprising a multi-layer membrane having a mechanical pre-bias that compensates the effect of gravity on the membrane are disclosed.
James A. Walker
Filed: 1 May 18
Utility
Microdisplay with Reduced Pixel Size and Method of Forming Same
17 Jun 21
A vertically stacked pixel circuit is provided that includes a high voltage device for driving a pixel on an upper silicon layer, and low voltage circuitry (such as matrix addressing circuitry, data storage circuitry and uniformity compensation circuitry) on a lower silicon layer.
Ihor WACYK
Filed: 16 Feb 21