Patents Examined by Emily J Frank
-
Patent number: 12079420Abstract: Power management for a touch controller is disclosed. The touch controller can include a transmit section for transmitting stimulation signals to an associated touch sensor panel to drive the panel, where the touch controller can selectively adjust the transmit section to reduce power during the transmission. The touch controller can also include a receive section for receiving touch signals resulting from the driving of the panel, where the touch controller can selectively adjust the receive section to reduce power during the receipt of the touch signals. The touch controller can also include a demodulation section for demodulating the received touch signals to obtain touch event results, where the touch controller can selectively adjust the demodulation section to reduce power during the demodulation of the touch signals. The touch controller can also selectively reduce power below present low levels during idle periods.Type: GrantFiled: July 31, 2020Date of Patent: September 3, 2024Assignee: Apple Inc.Inventors: Christoph H. Krah, Thomas James Wilson
-
Patent number: 12073753Abstract: A method and a system for improving a performance at different viewing angles associated with displaying different human skin colors are provided. Based on a V-T curve and an XYZ data of WRGB at different viewing angles are measured in a case of proportions of RGB being the same, by setting different proportions of the RGB, a V-T curve and an XYZ data of the WRGB at different viewing angles are simulated under the above proportions. By extracting a characteristic RGB grayscale value of an image to be improved associated with viewing angles, a performance of the characteristic RGB grayscale value at different viewing angles is simulated. The proportions of the RGB are constantly adjusted to meet specifications.Type: GrantFiled: November 7, 2019Date of Patent: August 27, 2024Inventor: Yuecu Lin
-
Patent number: 12073779Abstract: The present specification discloses a display device which, upon consecutive viewing of images of different frequencies, may improve abnormalities on a screen according to frequency change, and a method for controlling same. A digital device, according to one embodiment of the present invention, comprises: a processor; a display unit comprising a plurality of pixels; and a timing controller for temporally controlling a driving frequency such that the display device is driven, wherein the timing controller controls a light-emitting signal at a preset duty ratio in one frame interval, and when the display unit displays an image of a first input frequency and thereafter displays an image of a second input frequency, a value of a vertical blanking interval for each frame interval gradually changes.Type: GrantFiled: May 31, 2019Date of Patent: August 27, 2024Assignee: LG ELECTRONICS INC.Inventors: Youngho Chun, Byungwoo Ryu, Hyungil Lee, Joonduk Jang
-
Patent number: 12067157Abstract: The technology disclosed can provide capabilities such as using motion sensors and/or other types of sensors coupled to a motion-capture system to monitor motions within a real environment. A virtual object can be projected to a user of a portable device integrated into an augmented rendering of a real environment about the user. Motion information of a user body portion is determined based at least in part upon sensory information received from imaging or acoustic sensory devices. Control information is communicated to a system based in part on a combination of the motion of the portable device and the detected motion of the user. The virtual device experience can be augmented in some implementations by the addition of haptic, audio and/or other sensory information projectors.Type: GrantFiled: December 23, 2022Date of Patent: August 20, 2024Assignee: Ultrahaptics IP Two LimitedInventor: David S. Holz
-
Patent number: 12046180Abstract: The present disclosure relates to a method and a device for compensating for a luminance deviation. A difference in pixel value of the image capturing device between a first pixel and a second pixel in the screen and a difference in gray scale level between first and second gray scale levels are derived from a captured image at the first gray scale level and a captured image at the second gray scale level which include pixel values of the image capturing device. A pixel value for the second pixel is calculated from the captured image at the first gray scale level.Type: GrantFiled: March 7, 2023Date of Patent: July 23, 2024Assignee: LG Display Co., Ltd.Inventors: Geon Ho Park, Won Yeol Lee, Cheon Heo
-
Patent number: 12039114Abstract: A mouse device includes a casing and a roller module. The roller module is disposed within the casing. The roller module includes a scroll wheel, a magnetic ratchet, a supporting element and a permanent magnet. The scroll wheel includes a concave structure. The magnetic ratchet is disposed within the concave structure of the scroll wheel. While the scroll wheel is rotated, the magnetic ratchet is correspondingly rotated. The magnetic ratchet includes a ratchet frame and plural tooth structures. The plural tooth structures are discretely arranged on an inner surface of the ratchet frame. While the magnetic ratchet is rotated with the scroll wheel, the plural tooth structures of the magnetic ratchet are sequentially transferred through a region over the permanent magnet, and a magnetic attractive force between the corresponding tooth structure and the permanent magnet is generated.Type: GrantFiled: June 21, 2023Date of Patent: July 16, 2024Assignee: PRIMAX ELECTRONICS LTD.Inventors: Chun-Nan Su, Chun-Che Wu, Sheng-An Tsai, Shu-An Huang, Li-Kuei Cheng
-
Patent number: 12033572Abstract: A display driver includes image processing circuitry and drive circuitry. The image processing circuitry is configured to determine a total current of a display panel and perform an IR-drop compensation using the total current and a first graylevel for a first subpixel of the display panel to determine a first voltage level for the first subpixel. The drive circuitry is configured to update the first subpixel based at least in part on the first voltage level.Type: GrantFiled: November 8, 2021Date of Patent: July 9, 2024Assignee: Synaptics IncorporatedInventors: Masao Orio, Hirobumi Furihata, Takashi Nose
-
Patent number: 12002419Abstract: A pixel includes a first capacitor including a first electrode connected to a wire of a first power supply voltage, and a second electrode connected to a gate node, a first transistor including a gate electrode connected to the gate node, and a back gate electrode connected to a back gate line, a second transistor which transmits a data signal to a source of the first transistor in response to a first gate signal, a third transistor which diode-connects the first transistor in response to the first gate signal, a fourth transistor which transmits an initialization voltage to the gate node in response to a second gate signal. The first transistor receives a back gate voltage, which is obtained by delaying the first gate signal by a ½ frame, through the back gate electrode in a low-frequency driving mode.Type: GrantFiled: November 8, 2021Date of Patent: June 4, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Keunwoo Kim
-
Patent number: 11984066Abstract: A processing method and a processing device for pixel data, a display device, a display method, and a storage medium are provided. The processing method includes: determining a target pixel point in pixel points of a display frame image to be revised, a pixel data of each pixel point including S initial pixel data of different primary colors and a white initial pixel data; converting a white initial pixel data in a pixel data of the target pixel point into S equivalent pixel data of the different primary colors; obtaining S target pixel data of the different primary colors and a white target pixel data of the target pixel point according to the S equivalent pixel data and according to S initial pixel data of the different primary colors in the pixel data of the target pixel point, the white target pixel data corresponding to a 0 gray scale.Type: GrantFiled: February 15, 2019Date of Patent: May 14, 2024Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventor: Wenchao Bao
-
Patent number: 11955067Abstract: A method of rate control of a display device includes receiving compressed stress data for a slice of a display, decompressing the compressed stress data to obtain reconstructed stress data for the slice, adding additional stress data to the reconstructed stress data to obtain updated stress data for the slice, encoding the updated stress data at a first precision level (pc) to generate first updated compressed stress data for the slice, in response to a size (bc) of the first updated compressed stress data for the slice of the display exceeding a size (bt) of a buffer, determining a second precision level (p) based on the first precision level (pc), a third precision level (ps) of the additional stress data, and a fourth precision level (pb) of the buffer, and encoding the updated stress data at the second precision level (p) to generate second updated compressed stress data.Type: GrantFiled: May 27, 2021Date of Patent: April 9, 2024Assignee: Samsung Display Co., Ltd.Inventor: Gregory W. Cook
-
Patent number: 11928287Abstract: A touch control chip, a coding method, and an electronic device are provided, which can effectively reduce influence of a coding signal of a touch control layer of a screen on a display layer. The touch control chip includes: a driving circuit configured to output the coding signal to a display layer of the screen; and a control circuit configured to adjust a driving impedance of the driving circuit during a period when the driving circuit outputs the coding signal, so that a value of the driving impedance in a display sensitive interval of the display layer is greater than a value of the driving impedance in a time interval outside the display sensitive interval, where the display sensitive interval includes a pixel update interval of the display layer, and the pixel update interval is the time interval for a pixel in the display layer to receive a data signal.Type: GrantFiled: September 17, 2021Date of Patent: March 12, 2024Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventors: Haiming Shen, Liangguang Peng
-
Patent number: 11929002Abstract: A method of calculating a gamma-value for a display panel includes displaying a first color test image having a first target gray-level and then measuring a first luminance-value implemented by at least one first color-pixel included in a jth display-area, displaying a second color test image having the first target gray-level and then measuring a second luminance-value implemented by at least one second color-pixel included in the jth display-area, deriving an estimated driving current flowing in the second color-pixel at the first target gray-level based on RGB gray level-driving current curves, deriving a second target gray-level when the estimated driving current flows in the first color-pixel based on the RGB gray level-driving current curves, and calculating a target gamma-value to be applied to the first color-pixel included in the jth display-area based on the first target gray-level, the second target gray-level, the first luminance-value, and the second luminance-value.Type: GrantFiled: February 17, 2021Date of Patent: March 12, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dongwon Moon, Sungyoon Jo, Naoaki Komiya, Sang-Gon Lee
-
Patent number: 11908367Abstract: A color setting method includes: displaying multiple groups of color pictures respectively according to a pre-set sequence, each group of color pictures including at least two pictures, and each picture including at least one color component; marking a selected picture in each group of color pictures in response to a first operation by a user; acquiring a user's color preferences according to a plurality of selected pictures and color components of each picture; setting color parameters of a display device according to the color preferences.Type: GrantFiled: August 25, 2021Date of Patent: February 20, 2024Assignee: BOE Technology Group Co., Ltd.Inventors: Chao Wu, Yilin Lin, Kui Wu
-
Patent number: 11893942Abstract: A GOA unit circuit is provided with an input sub-circuit configured to set a turn-on voltage to a first node and a turn-off voltage to a second node in response to an input signal and a first clock signal; a first pull-down sub-circuit, a pull-up sub-circuit, a first control sub-circuit, and a second control sub-circuit configured to set voltage levels of the first, the second, and a third nodes. The gate on array unit circuit also includes a first output sub-circuit to output a first output signal at the turn-on voltage triggered by a second clock in response to voltage levels at the first, second nodes and a second output sub-circuit to output a second output signal falling to the turn-off voltage triggered by the first clock and rising to the turn-on voltage triggered by the third clock in response to voltage levels at the first, third nodes.Type: GrantFiled: September 17, 2019Date of Patent: February 6, 2024Assignee: BOE Technology Group Co., Ltd.Inventors: Lubin Shi, Ke Meng
-
Patent number: 11875718Abstract: A correction method for a color temperature curve includes: obtaining pixel values of a display device, and the pixel values including at least two first pixel values and second pixel values; obtaining at least two first standard pixel values according to the at least two first pixel values, and a color temperature value corresponding to each first standard pixel value being a standard color temperature value; determining at least one correction interval according to the at least two first standard pixel values and the second pixel values, and a correction interval including two first standard pixel values and at least two second pixel values therebetween; and correcting the at least two second pixel values to obtain at least two second standard pixel values according to the two first standard pixel values, and a color temperature value corresponding to each second standard pixel value being within a preset color temperature range.Type: GrantFiled: September 23, 2021Date of Patent: January 16, 2024Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Tianmin Rao
-
Patent number: 11869407Abstract: Disclosed are methods for compensating colors based on luminance adjustment parameters and the related display devices. The present disclosure provides an electronic device. The electronic device comprises: a display comprising an array of pixels and a control circuit electrically connected to the display. Pixels in the array comprise a plurality of first sub-pixels defining a first color area in a chromaticity plane, a plurality of second sub-pixels defining a second color area in the chromaticity plane and a plurality of third sub-pixels defining a third color area in the chromaticity plane. The plurality of first sub-pixels is associated with a first primary color, the plurality of second sub-pixels is associated with a second primary color, and the plurality of third sub-pixels is associated with a third primary color.Type: GrantFiled: April 29, 2022Date of Patent: January 9, 2024Assignee: DYNASCAN TECHNOLOGY CORP.Inventors: Tsun-I Wang, Ching-Chun Wu, Chia-Liang Yang
-
Patent number: 11842702Abstract: A liquid crystal display apparatus includes: a liquid crystal panel; an input interface for inputting data of a first image; a backlight module; and at least one memory and at least one processor which function as: an estimating unit configured to estimate brightness of light to be irradiated from the backlight module to the liquid crystal panel; a correcting unit configured to correct the first image to a second image based on the brightness estimated by the estimating unit, a contrast of the liquid crystal panel, and a target contrast so that a brightness error with respect to a display brightness in a case where the first image is displayed with the target contrast is suppressed; and a control unit configured to control transmittance of the liquid crystal panel based on data of the second image.Type: GrantFiled: October 27, 2021Date of Patent: December 12, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Koji Mito, Yasuo Suzuki
-
Patent number: 11804168Abstract: In at least one embodiment, a display device includes a panel including a display area in which a plurality of pixels is arranged. An optical module is superposed on the display area. The display area has a low-resolution area having a polygonal shape and superposed on the optical module and a high-resolution area neighboring the low-resolution area, unit pixels having the same size as those of the high-resolution area are arranged in a lower pixel density than that of the high-resolution area and transmission areas are disposed adjacent to the unit pixels in the low-resolution area, and unit pixels and transmission areas are arranged in different forms in a boundary area of the high-resolution area neighboring the low-resolution area according to slopes of the boundary area.Type: GrantFiled: January 5, 2021Date of Patent: October 31, 2023Assignee: LG Display Co., Ltd.Inventors: Jong-Hwan Ock, Yu-Hoon Kim, Jung-Geun Jo
-
Patent number: 11798445Abstract: An image processing apparatus includes at least one processor and a memory containing instructions that are configured to cause the at least one processor to perform operations including a correction task configured to correct an image signal that has been input to the first projection-type display apparatus. The first projection image includes a first area which part of the second projection image overlaps, a second area that is adjacent to the first area and affected by the light amount control unit, and a third area different from the first area and the second area. The correction task corrects one of a luminance and a color of the image signal corresponding to the second area so as to reduce a difference from a corresponding one of a luminance and a color of the image signal corresponding to at least one of the first and third areas.Type: GrantFiled: April 4, 2022Date of Patent: October 24, 2023Assignee: CANON KABUSHIKI KAISHAInventor: Ikuo Takanashi
-
Patent number: 11789479Abstract: A low drop-out (LDO) regulator includes a power transistor, an error amplifier and a droop adjusting circuit. The power transistor regulates a driving voltage based on a gate voltage of a gate node to provide an output voltage at an output node. The error amplifier outputs the gate voltage by amplifying a voltage difference between a reference voltage and a feedback voltage proportional to the output voltage. The droop adjusting circuit is connected between the gate node and the output node, is coupled to the output voltage, and adjusts the gate voltage to compensate for a change of the output voltage based on a change of a load current which is provided to a load from the output node.Type: GrantFiled: March 2, 2022Date of Patent: October 17, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventor: Jungmoon Kim