-
公开(公告)号：US11978385B2
公开(公告)日：2024-05-07
申请号：US17889242
申请日：2022-08-16
Applicant: Apple Inc.
Inventor： Yao Shi , Wei H Yao , Hyunwoo Nho , Jie Won Ryu , Kingsuk Brahma , Li-Xuan Chuo , Hyunsoo Kim , Myungjoon Choi , Ce Zhang , Alex H Pai , Shengkui Gao , Rungrot Kitsomboonloha , Shatam Agarwal , Vehbi Calayir , Chaohao Wang , Steven N Hanna , Pei-En Chang
IPC: G09G3/20
CPC classification number: G09G3/2096 , G09G3/2007 , G09G2310/0291 , G09G2320/0223 , G09G2320/0233 , G09G2330/021 , G09G2360/16
Abstract: This disclosure provides various techniques for providing fine-grain digital and analog pixel compensation to account for voltage error across an electronic display. By employing a two-dimensional digital compensation and a local analog compensation, a fine-grain and robust pixel compensation scheme may be provided to the electronic display.
-
公开(公告)号：US11663973B1
公开(公告)日：2023-05-30
申请号：US16409583
申请日：2019-05-10
Applicant: Apple Inc.
Inventor： Junhua Tan , Shengkui Gao , Myungjoon Choi , Injae Hwang , Chaohao Wang , Myung-Je Cho , Hyunwoo Nho , Sun-Il Chang , Jesse A. Richmond , Kingsuk Brahma , Jie Won Ryu , Shiping Shen , Yunhui Hou
IPC: G09G3/3258 , G09G3/32 , G09G3/3233
CPC classification number: G09G3/3258 , G09G3/32 , G09G3/3233 , G09G2320/0233 , G09G2320/0646 , G09G2320/0693 , G09G2330/08 , G09G2330/12
Abstract: External compensation of display panels may employ measurement or sensing circuitry configured to measure the output of a pixel and compensate for variations. Due to effects from the sensing circuitry, a mismatch between a target current and the actual current in the pixel may occur. Systems and methods that compensate for the effects from sensing circuitry and reduce or mitigate the mismatch are described. Systems and methods described herein include compensation circuitry that is capable of employing correction factors to compensate for the effects due to the presence of sensing circuitry. Methods for determining the correction factor are also described.
-
公开(公告)号：US10997914B1
公开(公告)日：2021-05-04
申请号：US16563286
申请日：2019-09-06
Applicant: Apple Inc.
Inventor： Injae Hwang , Jiye Lee , Yifan Zhang , Hyunwoo Nho , Sun-Il Chang , Junhua Tan , Jie Won Ryu , Hyunsoo Kim , Myungjoon Choi , Shiping Shen , Kingsuk Brahma , Jesse A. Richmond
IPC: G09G5/10 , G09G3/3233 , G09G3/36 , G09G3/3258
Abstract: A system may include a display panel that includes number of pixels that display image data on a display. The system may also include a circuit that measures a voltage associated with a light-emitting diode (LED) of a pixel of the number of pixels in response to the LED receiving a current. In addition to the circuit, the system may employ data processing circuitry that may generate a calibrated prediction model based at least in part on the voltage and the current, such that the calibrated prediction model predicts a change in voltage performance of the LED as the LED ages.
-
公开(公告)号：US20200335040A1
公开(公告)日：2020-10-22
申请号：US16802354
申请日：2020-02-26
Applicant: Apple Inc.
Inventor： Hyunwoo Nho , Myungjoon Choi , Hyunsoo Kim , Mohammad Ali Jangda , Jie Won Ryu , Shiping Shen , Kingsuk Brahma , Chaohao Wang , Wei H. Yao , Alex H. Pai
IPC: G09G3/3258
Abstract: An electronic device includes a display having multiple regions of pixels. Each pixel includes a diode that emits light based on an amount of current through the diode and a transistor that controls the amount of current flowing through the diode. The electronic device includes driver-integrated circuitry that reduces hysteresis in a first transistor of a first pixel of a region of pixels, settles a threshold voltage of the first transistor, applies a test voltage to the first transistor, and senses a current across the first transistor. The electronic device includes processing circuitry that determines a predetermined voltage based on the current and a predetermined current-voltage relationship determined at an initial temperature, determines a voltage difference between the test voltage and the predetermined voltage, and applies the predetermined voltage and the voltage difference to a second transistor of a second pixel of the region of pixels.
-
公开(公告)号：US20240233604A9
公开(公告)日：2024-07-11
申请号：US18446694
申请日：2023-08-09
Applicant: Apple Inc.
Inventor： Jongyup Lim , David S Zalatimo , Hyunwoo Nho , Jie Won Ryu , Koorosh Aflatooni , Myungjoon Choi , Wei Xiong
CPC classification number: G09G3/2044 , G06T11/001
Abstract: An electronic device may include an electronic display having multiple display pixels that display an image based on dithered image data. The electronic device may also include image processing circuitry that generates the dithered image data based on input image data and a threshold gray level that is greater than one. Generating the dithered image data may include replacing each gray level of the input image data that is less than the threshold gray level with either a zero gray level or the threshold gray level according to a dither pattern.
-
Patent Agency Ranking
公开(公告)号：US20240135856A1
公开(公告)日：2024-04-25
申请号：US18446694
申请日：2023-08-08
Applicant: Apple Inc.
Inventor： Jongyup Lim , David S Zalatimo , Hyunwoo Nho , Jie Won Ryu , Koorosh Aflatooni , Myungjoon Choi , Wei Xiong
CPC classification number: G09G3/2044 , G06T11/001
Abstract: An electronic device may include an electronic display having multiple display pixels that display an image based on dithered image data. The electronic device may also include image processing circuitry that generates the dithered image data based on input image data and a threshold gray level that is greater than one. Generating the dithered image data may include replacing each gray level of the input image data that is less than the threshold gray level with either a zero gray level or the threshold gray level according to a dither pattern.
-
公开(公告)号：US20240029625A1
公开(公告)日：2024-01-25
申请号：US18217028
申请日：2023-06-30
Applicant: Apple Inc.
Inventor： Saman Saeedi , Hyunwoo Nho , Myungjoon Choi , Jie Won Ryu , Kyung Wook Kim , Vehbi Calayir , Kingsuk Brahma , Jason N Gomez , Kwang Soon Park
CPC classification number: G09G3/2096 , G06F3/0418 , G09G3/32 , G09G2310/0224 , G09G2360/18 , G09G2310/0202 , G09G2320/0266 , G09G2310/08
Abstract: Systems and methods for programming an electronic display in a double-row manner are provided. A system may include processing circuitry that generates image data and an electronic display that programs multiple rows of display pixels with different pixel data of the image data at the same time. This may allow double-row interlaced driving to reduce or eliminate image artifacts due to intra-frame pauses.
-
公开(公告)号：US20240028162A1
公开(公告)日：2024-01-25
申请号：US18339646
申请日：2023-06-22
Applicant: Apple Inc.
Inventor： Jason N Gomez , Hyunwoo Nho , Jason C Hu , Kwang Soon Park , Kyung Wook Kim , James E Brown , Jie Won Ryu , Myungjoon Choi , Yao Shi , ByoungSuk Kim , Vehbi Calayir , Peng Li , Evan P Donoghue
IPC: G06F3/041
CPC classification number: G06F3/04186
Abstract: An electronic display may include a touch sensing system configured to perform touch sensing in an active area of the electronic display and display driver circuitry configured to program display pixels of the active area to emit light. The electronic display may also include the active area. The active area may include a first portion and a second portion that are at least partially electrically separated. The display driver circuitry may program the display pixels in the first portion while the touch sensing circuitry may perform touch sensing in the second portion.
-
公开(公告)号：US20230084423A1
公开(公告)日：2023-03-16
申请号：US17853649
申请日：2022-06-29
Applicant: Apple Inc.
Inventor： Myungjoon Choi , Jie Won Ryu , Hyunwoo Nho , Xiaokai Li , Kaikai Guo , Szu-Hsien Lee , Rungrot Kitsomboonloha , Pei-En Chang , Amit Nayyar , Vehbi Calayir
Abstract: Embodiments presented herein relate to reducing visual artifacts on an electronic display caused by an intra-frame pause. To do so, the intra-frame pause may be divided into smaller intra-frame pause segments. The intra-frame pause segments may be applied to the display during different image frames and/or at different locations on the electronic display. For example, each intra-frame pause segment may be applied to a different location on the electronic display. In some embodiments, multiple intra-frame pause segments may be applied during a single image frame. In some embodiments, the intra-frame pause segments may be applied to various image frames and at various location on the electronic display according to a pattern. To reduce band flickering that may be caused by the different locations of the intra-frame pause segments, an emission duty of one or more rows of pixels of the display may be adjusted.
-
公开(公告)号：US11605330B1
公开(公告)日：2023-03-14
申请号：US17853649
申请日：2022-06-29
Applicant: Apple Inc.
Inventor： Myungjoon Choi , Jie Won Ryu , Hyunwoo Nho , Xiaokai Li , Kaikai Guo , Szu-Hsien Lee , Rungrot Kitsomboonloha , Pei-En Chang , Amit Nayyar , Vehbi Calayir
Abstract: Embodiments presented herein relate to reducing visual artifacts on an electronic display caused by an intra-frame pause. To do so, the intra-frame pause may be divided into smaller intra-frame pause segments. The intra-frame pause segments may be applied to the display during different image frames and/or at different locations on the electronic display. For example, each intra-frame pause segment may be applied to a different location on the electronic display. In some embodiments, multiple intra-frame pause segments may be applied during a single image frame. In some embodiments, the intra-frame pause segments may be applied to various image frames and at various location on the electronic display according to a pattern. To reduce band flickering that may be caused by the different locations of the intra-frame pause segments, an emission duty of one or more rows of pixels of the display may be adjusted.
-
-
-
-
-
-
-
-
-
Search Results
31
records
(took 0.019 seconds)
