Patents by Inventor Rajesh Dighde
Rajesh Dighde 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).
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Publication number: 20220404926Abstract: The disclosure herein describes a display panel that includes a display area and a non-display area. The example display panel includes a flexible substrate, a touch metal layer, and a metal layer between the flexible substrate and the touch metal layer. Each of the display area and the non-display area include the flexible substrate, the touch metal layer, and the metal layer. The metal layer includes signal lines for transmitting signals between the display area and the non-display area. The non-display area includes a bending area with the touch metal layer being disposed on the metal layer in the non-display area to shield noise from signals transmitted through the signal lines in the bending area from the antenna. The display area includes light emitting diodes and a thin film encapsulation layer disposed between the touch metal layer and the metal layer.Type: ApplicationFiled: July 1, 2022Publication date: December 22, 2022Inventors: Hyungsoo KIM, Hyun Woo KOO, Ying ZHENG, Vasudha GUPTA, Rajesh DIGHDE
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Patent number: 11379068Abstract: The disclosure herein describes a display panel that includes a display area and a non-display area. The example display panel includes a flexible substrate, a touch metal layer, and a metal layer between the flexible substrate and the touch metal layer. Each of the display area and the non-display area include the flexible substrate, the touch metal layer, and the metal layer. The metal layer includes signal lines for transmitting signals between the display area and the non-display area. The non-display area includes a bending area with the touch metal layer being disposed on the metal layer in the non-display area to shield noise from signals transmitted through the signal lines in the bending area from the antenna. The display area includes light emitting diodes and a thin film encapsulation layer disposed between the touch metal layer and the metal layer.Type: GrantFiled: June 16, 2021Date of Patent: July 5, 2022Assignee: Microsoft Technology Licensing, LLCInventors: Hyungsoo Kim, Hyun Woo Koo, Ying Zheng, Vasudha Gupta, Rajesh Dighde
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Patent number: 11308919Abstract: A device (100) includes a plurality of display panels (102), a plurality of display controllers (116), each display controller of the plurality of display controllers being configured to control a corresponding display panel of the plurality of display panels, each respective display controller of the plurality of display controllers being configured to generate a timing indication (134), and a processor (136) coupled to the plurality of display controllers to receive the timing indications from the plurality of display controllers. Each timing indication is indicative of the respective display controller residing in a state ready for refresh of the corresponding display panel. The processor is configured to delay a refresh of the plurality of display panels until the timing indication is received from each respective display controller of the plurality of display controllers to synchronize the plurality of display panels.Type: GrantFiled: May 23, 2019Date of Patent: April 19, 2022Assignee: Microsoft Technology Licensing, LLCInventors: Matthew Morris, Ying Zheng, Rajesh Dighde
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Publication number: 20210233495Abstract: A device (100) includes a plurality of display panels (102), a plurality of display controllers (116), each display controller of the plurality of display controllers being configured to control a corresponding display panel of the plurality of display panels, each respective display controller of the plurality of display controllers being configured to generate a timing indication (134), and a processor (136) coupled to the plurality of display controllers to receive the timing indications from the plurality of display controllers. Each timing indication is indicative of the respective display controller residing in a state ready for refresh of the corresponding display panel. The processor is configured to delay a refresh of the plurality of display panels until the timing indication is received from each respective display controller of the plurality of display controllers to synchronize the plurality of display panels.Type: ApplicationFiled: May 23, 2019Publication date: July 29, 2021Inventors: Matthew MORRIS, Ying ZHENG, Rajesh DIGHDE
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Patent number: 10804352Abstract: A display includes a display substrate having a patterned edge, the patterned edge including a plurality of notches. The display further includes a plurality of display signal lines supported by the display substrate on a first side of the display substrate, and a display control circuit disposed along a second side of the display substrate, the second side being opposite the first side. The display control circuit includes a plurality of contacts. Each display signal line of the plurality of display signal lines is disposed in a respective notch of the plurality of notches to traverse the patterned edge to establish an electrical connection between each display signal line of the plurality of display signal lines and a respective contact of the plurality of contacts.Type: GrantFiled: April 24, 2019Date of Patent: October 13, 2020Assignee: Microsoft Techology Licensing, LLCInventors: Minhyuk Choi, Rajesh Dighde
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Patent number: 10761572Abstract: The description relates to hinged devices. One example relates to a device that has a first portion and a second portion. The device can include a hinge assembly secured to the first portion and the second portion and a flexible display secured to the first portion and the second portion. The device can include a support member positioned between the hinge assembly and the flexible display. The hinge assembly can be configured to control a length of the device as defined by the first portion, the hinge assembly, and the second portion, based at least in part upon an orientation of the first and second portions, and configured to control a shape of the support member based at least in part upon the orientation of the first and second portions.Type: GrantFiled: March 25, 2019Date of Patent: September 1, 2020Assignee: Microsoft Technology Licensing, LLCInventors: Kabir Siddiqui, Rajesh Dighde
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Patent number: 10670905Abstract: Described are examples of display devices including a display panel comprised of a transparent layer, a color filter layer adjacent to the transparent layer, wherein the color filter layer comprises a matrix of colored light filters, and a black matrix layer comprising a base portion disposed on the transparent layer between two of the different colored light filters and an extension portion that extends into the color filter layer between the two colored light filters to block a light path that may otherwise traverse both of the two colored light filters. The base portion and the extension portion differ in a height dimension that is substantially perpendicular to the transparent layer.Type: GrantFiled: February 10, 2017Date of Patent: June 2, 2020Assignee: Microsoft Techonology Licensing, LLCInventors: Minhyuk Choi, Gangok Lee, Jignesh V Gandhi, Camilo Leon, Andrew N Cady, Rajesh Dighde
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Patent number: 10553177Abstract: The present disclosure provides devices and techniques for dynamically adjusting the bias voltage (V) levels (e.g., low level gate voltage (VGL) and high level gate voltage (VGH)) for display screens made with thin-film transistor (TFT) technology based on a display run time. Thus, as the positive bias temperature stress for the TFTs increases over the course of the display lifetime, features of the present disclosure adjust the bias voltage levels to maintain operation margin (e.g., the ratio between the high level gate voltage (VGH) value and the voltage value which the display can maintain with normal operation). By dynamically adjusting the bias voltage levels, the TFT displays of the present disclosure consume lower power than their conventional counterparts and improve the lifetime of the display itself.Type: GrantFiled: February 6, 2019Date of Patent: February 4, 2020Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Minhyuk Choi, Ying Zheng, Matthew Morris, Andrew Cady, Jerry Michael Hill, Gangok Lee, Rajesh Dighde
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Patent number: 10545541Abstract: The description relates to hinged devices. One example relates to a device that has hinged first and second portions and a flexible display positioned over the first and second portions. The example can include a cord that determines a length of the hinged first and second portions relative to the flexible display depending on an orientation of the first and second portions. The example can also include a cam that controls a position of a support under the flexible display depending on the orientation.Type: GrantFiled: May 6, 2019Date of Patent: January 28, 2020Assignee: Microsoft Technology Licensing, LLCInventors: Rajesh Dighde, Kabir Siddiqui
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Publication number: 20190371271Abstract: A device includes a plurality of display panels, a plurality of display controllers, each display controller of the plurality of display controllers being configured to control a corresponding display panel of the plurality of display panels, each respective display controller of the plurality of display controllers being configured to generate a timing indication, and a processor coupled to the plurality of display controllers to receive the timing indications from the plurality of display controllers. Each timing indication is indicative of the respective display controller residing in a state ready for refresh of the corresponding display panel. The processor is configured to delay a refresh of the plurality of display panels until the timing indication is received from each respective display controller of the plurality of display controllers to synchronize the plurality of display panels.Type: ApplicationFiled: June 4, 2018Publication date: December 5, 2019Inventors: Matthew Morris, Ying Zheng, Rajesh Dighde
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Publication number: 20190252484Abstract: A display includes a display substrate having a patterned edge, the patterned edge including a plurality of notches. The display further includes a plurality of display signal lines supported by the display substrate on a first side of the display substrate, and a display control circuit disposed along a second side of the display substrate, the second side being opposite the first side. The display control circuit includes a plurality of contacts. Each display signal line of the plurality of display signal lines is disposed in a respective notch of the plurality of notches to traverse the patterned edge to establish an electrical connection between each display signal line of the plurality of display signal lines and a respective contact of the plurality of contacts.Type: ApplicationFiled: April 24, 2019Publication date: August 15, 2019Inventors: Minhyuk CHOI, Rajesh DIGHDE
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Patent number: 10354569Abstract: The present disclosure provides devices and techniques for correcting misalignment in a multi-display system by identifying a misalignment between a plurality of displays in the multi-display device and determining a line start position of at least one of the plurality of displays in response to identifying the misalignment. The techniques further include transmitting a first line start signal at the line start position of the at least one of the plurality of displays to correct the misalignment.Type: GrantFiled: February 8, 2017Date of Patent: July 16, 2019Assignee: Microsoft Technology Licensing, LLCInventors: Minhyuk Choi, Ying Zheng, Rajesh Dighde
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Patent number: 10319802Abstract: A display includes a display substrate having a patterned edge, the patterned edge including a plurality of notches. The display further includes a plurality of display signal lines supported by the display substrate on a first side of the display substrate, and a display control circuit disposed along a second side of the display substrate, the second side being opposite the first side. The display control circuit includes a plurality of contacts. Each display signal line of the plurality of display signal lines is disposed in a respective notch of the plurality of notches to traverse the patterned edge to establish an electrical connection between each display signal line of the plurality of display signal lines and a respective contact of the plurality of contacts.Type: GrantFiled: November 22, 2017Date of Patent: June 11, 2019Assignee: Microsoft Technology Licensing, LLCInventors: Minhyuk Choi, Rajesh Dighde
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Publication number: 20190172409Abstract: The present disclosure provides devices and techniques for dynamically adjusting the bias voltage (V) levels (e.g., low level gate voltage (VGL) and high level gate voltage (VGH)) for display screens made with thin-film transistor (TFT) technology based on a display run time. Thus, as the positive bias temperature stress for the TFTs increases over the course of the display lifetime, features of the present disclosure adjust the bias voltage levels to maintain operation margin (e.g., the ratio between the high level gate voltage (VGH) value and the voltage value which the display can maintain with normal operation).Type: ApplicationFiled: February 6, 2019Publication date: June 6, 2019Inventors: Minhyuk CHOI, Ying ZHENG, Matthew Morris, Andrew CADY, Jerry Michael HILL, Gangok LEE, Rajesh DIGHDE
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Publication number: 20190157372Abstract: A display includes a display substrate having a patterned edge, the patterned edge including a plurality of notches. The display further includes a plurality of display signal lines supported by the display substrate on a first side of the display substrate, and a display control circuit disposed along a second side of the display substrate, the second side being opposite the first side. The display control circuit includes a plurality of contacts. Each display signal line of the plurality of display signal lines is disposed in a respective notch of the plurality of notches to traverse the patterned edge to establish an electrical connection between each display signal line of the plurality of display signal lines and a respective contact of the plurality of contacts.Type: ApplicationFiled: November 22, 2017Publication date: May 23, 2019Inventors: Minhyuk Choi, Rajesh Dighde
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Publication number: 20190156737Abstract: A display driver circuit includes a first memory in which a plurality of gamma adjustment datasets are stored, each gamma adjustment dataset of the plurality of gamma adjustment datasets corresponding with a respective amount of display degradation, a second memory in which selection instructions and compensation instructions are stored, and a processor configured via execution of the selection instructions to select one of the plurality of gamma adjustment datasets based on usage data indicative of past display operation. The processor is further configured via execution of the compensation instructions to generate drive control signaling in accordance with the selected gamma adjustment dataset to compensate for display degradation arising from the past display operation.Type: ApplicationFiled: November 22, 2017Publication date: May 23, 2019Inventors: Minhyuk Choi, Rajesh Dighde, Matthew Morris, Ying Zheng
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Patent number: 10235962Abstract: The present disclosure provides devices and techniques for dynamically adjusting the bias voltage (V) levels (e.g., low level gate voltage (VGL) and high level gate voltage (VGH)) for display screens made with thin-film transistor (TFT) technology based on a display run time. Thus, as the positive bias temperature stress for the TFTs increases over the course of the display lifetime, features of the present disclosure adjust the bias voltage levels to maintain operation margin (e.g., the ratio between the high level gate voltage (VGH) value and the voltage value which the display can maintain with normal operation). By dynamically adjusting the bias voltage levels, the TFT displays of the present disclosure consume lower power than their conventional counterparts and improve the lifetime of the display itself.Type: GrantFiled: December 23, 2016Date of Patent: March 19, 2019Assignee: Microsoft Technology Licensing, LLCInventors: Minhyuk Choi, Ying Zheng, Matthew Morris, Andrew Cady, Jerry Michael Hill, Gangok Lee, Rajesh Dighde
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Patent number: 10181278Abstract: The description relates to display devices. One example can receive a first frame rendering that expresses color content with a defined number of bits that convey a set of color states that correspond to a first range of voltages for driving light emitting diodes (LEDs) of a display. The example can obtain information about degradation of the LEDs of the display. The example can also combine the defined number of bits that express the color content with additional degradation compensation overdrive bits relating to compensating for the degradation of the LEDs of the display. The example can map the combined defined number of bits and the additional degradation compensation overdrive bits to a second range of voltages for driving the display where individual values of the second range exceed the first range.Type: GrantFiled: November 23, 2016Date of Patent: January 15, 2019Assignee: Microsoft Technology Licensing, LLCInventors: Rajesh Dighde, Jacob Choi, Matthew Morris, Ying Zheng
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Patent number: 10146090Abstract: Display devices with a minimized border and methods of manufacturing display devices are described herein. In one example, a display unit is provided, the display unit having a display active area disposed between an encapsulation layer and a substrate such that the encapsulation layer encloses the display active area between a surface of the encapsulation layer and a surface of the substrate. A section of the display unit is cut at one edge of the display unit such that a portion of the encapsulation layer and a portion of the substrate are removed from the display unit while no display active area is removed. The cut section of the display unit is then sealed.Type: GrantFiled: August 1, 2016Date of Patent: December 4, 2018Assignee: Microsoft Technology Licensing, LLCInventors: Kabir Siddiqui, Ying Zheng, Rajesh Dighde
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Publication number: 20180231827Abstract: Described are examples of display devices including a display panel comprised of a transparent layer, a color filter layer adjacent to the transparent layer, wherein the color filter layer comprises a matrix of colored light filters, and a black matrix layer comprising a base portion disposed on the transparent layer between two of the different colored light filters and an extension portion that extends into the color filter layer between the two colored light filters to block a light path that may otherwise traverse both of the two colored light filters. The base portion and the extension portion differ in a height dimension that is substantially perpendicular to the transparent layer.Type: ApplicationFiled: February 10, 2017Publication date: August 16, 2018Inventors: Minhyuk CHOI, Gangok LEE, Jignesh V. Gandhi, Camilo LEON, Andrew N. CADY, Rajesh DIGHDE