Patents by Inventor Zhiming Zhuang
Zhiming Zhuang 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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Patent number: 11910643Abstract: A method of manufacturing a display system includes forming a display element having a display active area over a silicon backplane, forming a display driver integrated circuit (DDIC), and bonding the display element to the display driver integrated circuit (DDIC). The display active area may include a light emitting diode such as an organic light emitting diode (OLED). Separately forming the display and the display circuitry may simplify formation of the OLED and allow for a higher density control interface between the display and the DDIC.Type: GrantFiled: September 24, 2021Date of Patent: February 20, 2024Assignee: Meta Platforms Technologies, LLCInventors: Min Hyuk Choi, Cheonhong Kim, Zhiming Zhuang
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Publication number: 20230333380Abstract: A micro-light emitting diode device includes a backplane including drive circuits formed thereon, an array of micro-LEDs bonded to the backplane and electrically coupled to the drive circuits, an array of polarization diffraction micro-lenses bonded to the array of micro-LEDs and including a planar surface, and a cover glass bonded to the planar surface of the array of polarization diffraction micro-lenses. A center of each polarization diffraction micro-lens of the array of polarization diffraction micro-lenses aligns with a center of a respective micro-LED of the array of micro-LEDs.Type: ApplicationFiled: April 14, 2022Publication date: October 19, 2023Inventors: Dong CHEN, Yun-Han LEE, Kilbock LEE, Zhiming ZHUANG, Donghee NAM, Hyunmin SONG
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Patent number: 11727892Abstract: Described is a system including a display, a display controller, and control logic communicatively coupled to the display. The display controller determines, based on coordinates of a focus point on the display, boundaries of a first image region and a second image region in an output image to be rendered. The focus point is determined through tracking an eye movement of a user viewing the display. The first image region has a higher resolution than the second image region. The display controller is configured to send image data together with control signals to the control logic. The control signals cause the control logic to render the output image on the display using the image data. As part of rendering the second image region, the control logic outputs a shared signal onto signal lines that are coupled to light sources in a group of adjacent rows or columns.Type: GrantFiled: November 9, 2022Date of Patent: August 15, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Qianqian Wang, Gang Chen, Min Hyuk Choi, Zhiming Zhuang
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Patent number: 11698530Abstract: A method of leakage-compensated global illumination comprises obtaining position data for at least one of a head or an eye of a user of a display system by an application processor, rendering image data for an image frame by the application processor based on the position data, modifying the image data to compensate for leakage associated with a global illumination by a display of the display system, and sending the image data to a display driver circuit of the display system for displaying the image frame on the display through the global illumination.Type: GrantFiled: September 21, 2020Date of Patent: July 11, 2023Assignee: Meta Platforms Technologies, LLCInventors: Min Hyuk Choi, Zhiming Zhuang, Wonjae Choi
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Patent number: 11686945Abstract: A method including determining a maximum luminance location of a display based on a field of view of an eye of a user of the display, and driving a plurality of light sources in the display based on locations of the plurality of light sources with respect to the maximum luminance location of the display. The plurality of light sources is controlled to have different luminance levels in different display zones corresponding to different zones on the retina of the eye of the user. In some examples, the display zones of the display system that have higher luminance levels can be dynamically changed based on the field of view or the gaze direction of the eye of the user.Type: GrantFiled: November 18, 2021Date of Patent: June 27, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Min Hyuk Choi, Zhiming Zhuang, Wonjae Choi, Cheonhong Kim
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Patent number: 11682106Abstract: Examples disclosed herein obtain first image data and the second image data for a foveated image frame to be displayed on a display, the first image data to have a first resolution and the second image data to have a second resolution lower than the first resolution. Disclosed examples also up-sample the second image data based on first metadata to generate up-sampled second image data, the up-sampled second image data to have the first resolution, and combine the first image data and the up-sampled second image data based on second metadata. Disclosed examples further perform, based on third metadata, a combination of at least two different filter operations on an overlap region including a portion of the first image data and a portion of the up-sampled second image data to generate the foveated image frame, the third metadata to specify a width in pixels of the overlap region.Type: GrantFiled: March 15, 2021Date of Patent: June 20, 2023Assignee: Intel CorporationInventors: Aaron Steyskal, Nausheen Ansari, Nobuyuki Suzuki, Zhiming Zhuang, Atsuo Kuwahara, Gary K. Smith
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Patent number: 11682663Abstract: A display system includes (a) a display element having an organic light emitting diode-containing display active area disposed over a silicon backplane, (b) a display driver integrated circuit (DDIC) attached to the display element and electrically connected with the display active area, and (c) a thermal barrier disposed within the silicon backplane, where the thermal barrier is configured to inhibit heat flow through the silicon backplane and into the display active area.Type: GrantFiled: November 16, 2020Date of Patent: June 20, 2023Assignee: Meta Platforms Technologies, LLCInventors: Young Bae Kim, Donghee Nam, Min Hyuk Choi, Zhiming Zhuang
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Patent number: 11615740Abstract: Example devices may include a display (such as an emissive display), and a controller, where the controller is configured to determine an image content parameter for a displayed image shown on the display, and adjust a duty ratio of the display based on the image content parameter. The duty ratio may be dynamically adjusted based on, for example, an image content parameter that may be related to the brightness of the image, or a portion thereof. The controller may be configured to determine an image content parameter for each of one or more portions of a displayed image, and adjust a duty ratio for corresponding parts of the display based on the image content parameter associated with the respective one or more portions of the displayed image.Type: GrantFiled: November 23, 2020Date of Patent: March 28, 2023Assignee: Meta Platforms Technologies, LLCInventors: Min Hyuk Choi, Cheonhong Kim, Zhiming Zhuang
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Patent number: 11610874Abstract: Micro light-emitting diode displays having hybrid inorganic-organic pixel structures and methods of fabricating micro light-emitting diode displays having hybrid inorganic-organic pixel structures are described. In an example, a micro light emitting diode pixel structure includes a plurality of inorganic micro light emitting diode devices in a dielectric layer. An organic light emitting diode device is in the dielectric layer and laterally adjacent to the plurality of inorganic micro light emitting diode devices. A transparent conducting oxide layer is above the dielectric layer and can act as a common cathode electrode for the inorganic and organic light emitting diodes.Type: GrantFiled: June 27, 2019Date of Patent: March 21, 2023Assignee: Intel CorporationInventors: Khaled Ahmed, Zhiming Zhuang
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Patent number: 11600235Abstract: Embodiments relate to coordinating operation of an under-display camera and a portion of a display panel over the camera to reduce impact of light emitted from the display panel during light sensing periods of the under-display camera. Depending on the level of light in the surrounding of an electronic device, the light emission period of the display panel and the light sensing period of the under-display camera are adjusted. The timing of the light emission period and the light sensing period are controlled so that a row of pixels in the display panel is not in the light emission period when corresponding row or rows of sensors in the under-display camera are in the light sensing period. In this way, the under-display camera may capture images without the influence of light emitted from the display panel.Type: GrantFiled: December 20, 2021Date of Patent: March 7, 2023Assignee: Meta Platforms Technologies, LLCInventors: Min Hyuk Choi, Zhiming Zhuang, Dong Chen
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Patent number: 11587531Abstract: Technologies for power efficient display synchronization are disclosed. A compute device may be connected to two display devices. The compute device may send image data to be displayed on each of the display devices in a burst mode, sending the image data in less time than the time between frames. The compute device may then enter a low-power state prior to sending the next image to the display devices. Before sending the next image to the display devices, the compute device may send a synchronization signal, which the display devices may use to synchronize the timing of displaying images between the two display devices.Type: GrantFiled: September 27, 2018Date of Patent: February 21, 2023Assignee: Intel CorporationInventors: Nausheen Ansari, Zhiming Zhuang
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Patent number: 11568813Abstract: Embodiments relate to a pixel circuit of a display with a pixel level burn-in compensation. The pixel circuit includes a light-emitting diode (LED), a first driving transistor between a voltage source and the LED, an enable transistor coupled to a gate electrode of the first driving transistor, and a second driving transistor connected between the voltage source and the LED. The first driving transistor provides first current from the voltage source to the LED according to a gate voltage of the first driving transistor. The enable transistor turns on responsive to a voltage level at an anode of the LED increasing to a threshold voltage level. The second driving transistor provides second current from the voltage source to the LED according to a version of the gate voltage of the first driving transistor received at a gate electrode of the second driving transistor via the enable transistor.Type: GrantFiled: May 10, 2022Date of Patent: January 31, 2023Assignee: Meta Platforms Technologies, LLCInventors: Jeong-Keun Ahn, Zhiming Zhuang, Min Hyuk Choi
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Patent number: 11568816Abstract: Embodiments of the present disclosure relate to a pixel circuit with a burn-in compensation. The pixel circuit includes a light-emitting diode (LED), a first driving transistor between a voltage source and the LED, a switching transistor coupled to a gate electrode of the first driving transistor, and a second driving transistor connected between the voltage source and the LED. The first driving transistor provides first current from the voltage source to the LED according to a gate voltage of the first driving transistor. The switching transistor is turned on after receiving an enable signal. The second driving transistor provides second current from the voltage source to the LED according to a version of the gate voltage of the first driving transistor received at a gate of the second driving transistor via the switching transistor.Type: GrantFiled: February 3, 2022Date of Patent: January 31, 2023Assignee: Meta Platforms Technologies, LLCInventors: Jeong-Keun Ahn, Min Hyuk Choi, Zhiming Zhuang
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Patent number: 11513573Abstract: A system includes a display panel, a temperature sensor configured to measure a temperature of the display panel, a thermoelectric device coupled to the display panel and configured to transfer heat to or from the display panel, and a controller electrically coupled to the temperature sensor and the thermoelectric device. The controller is configured to receive the measured temperature of the display panel and, based on the measured temperature of the display panel, send a second signal to the thermoelectric device to cause the thermoelectric device to remove a first quantity of heat from the display panel or send a third signal to the thermoelectric device to cause the thermoelectric device to provide a second quantity of heat to the display panel.Type: GrantFiled: November 9, 2020Date of Patent: November 29, 2022Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Min Hyuk Choi, Zhiming Zhuang, Kyung Won Park
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Patent number: 11416030Abstract: Disclosed herein are example edge-to-edge display devices and related methods. An example display device includes a display screen and a backlight including a light guide frame defining a cavity therein. The example display device includes an integrated circuit coupled to the display screen. The example display device includes a flexible printed circuit in communication with the integrated circuit and including an electrical component coupled thereto. The electrical component is at least partially disposed in the cavity of the light guide frame.Type: GrantFiled: September 21, 2020Date of Patent: August 16, 2022Assignee: Intel CorporationInventors: John Lang, Seh Kwa, Zhiming Zhuang, Jackson Tsai, Jun Jiang
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Patent number: 11355043Abstract: Embodiments relate to a display device including pixels arranged in rows and columns, where duty cycles of the pixels are dynamically programmed according to eye tracking information. For a display frame, the display device may determine a gaze region and a non-gaze region based on the eye tracking information. A control circuit of the display device controls a first subset of pixels in the gaze region to operate with a first duty cycle and controls a second subset of pixels in the non-gaze region to operate with a second duty cycle greater than the first duty cycle. The first subset of pixels emits light with greater brightness than the second subset of pixels.Type: GrantFiled: February 18, 2021Date of Patent: June 7, 2022Assignee: Facebook Technologies, LLCInventors: Min Hyuk Choi, Wenhao Qiao, Donghee Nam, Wonjae Choi, Zhiming Zhuang
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Publication number: 20220157798Abstract: A display system includes (a) a display element having an organic light emitting diode-containing display active area disposed over a silicon backplane, (b) a display driver integrated circuit (DDIC) attached to the display element and electrically connected with the display active area, and (c) a thermal barrier disposed within the silicon backplane, where the thermal barrier is configured to inhibit heat flow through the silicon backplane and into the display active area.Type: ApplicationFiled: November 16, 2020Publication date: May 19, 2022Inventors: Young Bae Kim, Donghee Nam, Min Hyuk Choi, Zhiming Zhuang
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Publication number: 20220147124Abstract: A system includes a display panel, a temperature sensor configured to measure a temperature of the display panel, a thermoelectric device coupled to the display panel and configured to transfer heat to or from the display panel, and a controller electrically coupled to the temperature sensor and the thermoelectric device. The controller is configured to receive the measured temperature of the display panel and, based on the measured temperature of the display panel, send a second signal to the thermoelectric device to cause the thermoelectric device to remove a first quantity of heat from the display panel or send a third signal to the thermoelectric device to cause the thermoelectric device to provide a second quantity of heat to the display panel.Type: ApplicationFiled: November 9, 2020Publication date: May 12, 2022Inventors: Min Hyuk CHOI, Zhiming ZHUANG, Kyung Won PARK
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Publication number: 20220146832Abstract: A method including determining a maximum luminance location of a display based on a field of view of an eye of a user of the display, and driving a plurality of light sources in the display based on locations of the plurality of light sources with respect to the maximum luminance location of the display. The plurality of light sources is controlled to have different luminance levels in different display zones corresponding to different zones on the retina of the eye of the user. In some examples, the display zones of the display system that have higher luminance levels can be dynamically changed based on the field of view or the gaze direction of the eye of the user.Type: ApplicationFiled: November 18, 2021Publication date: May 12, 2022Inventors: Min Hyuk CHOI, Zhiming ZHUANG, Wonjae CHOI, Cheonhong KIM
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Patent number: 11322095Abstract: Embodiments relate to a display device including an active display area with pixels arranged in rows and columns, where a focus area of the active display area is operated in a progressive scanning manner and a non-focus area of the active display area is operated in an interlaced scanning manner. The active display area is driven by a gate driver circuit that supplies gate signals the pixels. First stages of the gate driver circuit are coupled to first rows of the pixels that are in the focus area and output first gate signals in the progressive scanning manner. Second stages of the gate driver circuit are coupled to second rows of the pixels that are in the non-focus area and output second gate signals in the interlaced scanning manner.Type: GrantFiled: March 5, 2021Date of Patent: May 3, 2022Assignee: Facebook Technologies, LLCInventors: Zhiming Zhuang, Min Hyuk Choi, Donghee Nam, Wonjae Choi