公开(公告)号：US20140125645A1

公开(公告)日：2014-05-08

申请号：US13710884

申请日：2012-12-11

Applicant: APPLE INC.

Inventor： Mir B. Ghaderi ,  Shafiq M. Jamal ,  Sang Y. Youn

IPC: G09G3/36

CPC classification number: G09G3/006

Abstract: A method for testing integrated circuit-to-substrate joints that electrically connect an IC to a substrate. An ammeter is coupled to a test node of the driver IC, while the test node is coupled to a current source, and a measured current output of the ammeter is recorded. A voltmeter is coupled to the test node while the test node is coupled to an end node of a group of dummy IC-to-substrate joints that are daisy chained; a first measured voltage output of the voltmeter is then recorded. The IC then couples the test node to another end node of the daisy chained dummy joints, and a second measured voltage output is recorded. A resistance or admittance value for the electrical connection of the IC to the substrate is then computed, using the first and second measured voltage outputs and the measured current output. Other embodiments are also described and claimed.

Abstract translation: 一种用于测试将IC电连接到衬底的集成电路到衬底接头的方法。 电流表耦合到驱动器IC的测试节点，而测试节点耦合到电流源，并记录电流表的测量电流输出。 电压表耦合到测试节点，而测试节点耦合到菊花链的一组虚拟IC到衬底接头的端节点; 然后记录电压表的第一测量电压输出。 然后，IC将测试节点耦合到菊花链虚拟接头的另一端节点，并记录第二测量电压输出。 然后使用第一和第二测量电压输出和测量的电流输出来计算IC与衬底的电连接的电阻或导纳值。 还描述和要求保护其他实施例。

公开(公告)号：US20240054973A1

公开(公告)日：2024-02-15

申请号：US18493576

申请日：2023-10-24

Applicant: Apple Inc.

Inventor： Koorosh Aflatooni ,  Minhyuk Choi ,  Mohammad Ali Jangda ,  Sang Y. Youn ,  Yafei Bi ,  Jean-Pierre Guillou ,  Wei H. Yao

IPC: G09G5/10 ,  G06V40/13

CPC classification number: G09G5/10 ,  G06V40/1318 ,  G06V40/13 ,  G09G2320/0626 ,  G09G2360/148 ,  G09G2360/144

Abstract: An electronic device may have a display with an array of pixels. The device may have an array of components such as an array of light sensors for capturing fingerprints of a user through an array of corresponding transparent windows in the display. A capacitive touch sensor, proximity sensor, force sensor, or other sensor may be used by control circuitry in the device to monitor for the presence of a user's finger over the array of light sensors. In response, the control circuitry can direct the display to illuminate a subset of the pixels, thereby illuminating the user's finger and causing reflected light from the finger to illuminate the array of light sensors for a fingerprint capture operation. The display may have display driver circuitry that facilitates the momentary illumination of the subset of pixels with uniform flash data while image data is displayed in other portions of the display.

公开(公告)号：US20230169936A1

公开(公告)日：2023-06-01

申请号：US18160495

申请日：2023-01-27

Applicant: Apple Inc.

Inventor： Koorosh Aflatooni ,  Minhyuk Choi ,  Mohammad Ali Jangda ,  Sang Y. Youn ,  Yafei Bi ,  Jean-Pierre Guillou ,  Wei H. Yao

IPC: G09G5/10 ,  G06V40/13

CPC classification number: G09G5/10 ,  G06V40/1318 ,  G06V40/13 ,  G09G2320/0626 ,  G09G2360/148 ,  G09G2360/144

Abstract: An electronic device may have a display with an array of pixels. The device may have an array of components such as an array of light sensors for capturing fingerprints of a user through an array of corresponding transparent windows in the display. A capacitive touch sensor, proximity sensor, force sensor, or other sensor may be used by control circuitry in the device to monitor for the presence of a user's finger over the array of light sensors. In response, the control circuitry can direct the display to illuminate a subset of the pixels, thereby illuminating the user's finger and causing reflected light from the finger to illuminate the array of light sensors for a fingerprint capture operation. The display may have display driver circuitry that facilitates the momentary illumination of the subset of pixels with uniform flash data while image data is displayed in other portions of the display.

公开(公告)号：US20220392965A1

公开(公告)日：2022-12-08

申请号：US17887340

申请日：2022-08-12

Applicant: Apple Inc.

Inventor： Minhyuk Choi ,  Rui Liu ,  Cheng Chen ,  Chin-Wei Lin ,  Sang Y. Youn ,  Shih Chang Chang ,  Tsung-Ting Tsai

IPC: H01L27/32 ,  G09G3/3233 ,  H01L51/52 ,  H01L31/0232

Abstract: A display may have an array of pixels. Each pixel may have a light-emitting diode such as an organic light-emitting diode. The organic light-emitting diodes may each have an anode that is coupled to a thin-film transistor pixel circuit for controlling the anode. Transparent windows may be formed in the display. The windows may be formed by replacing data storage capacitors and other pixel circuit structures in a subset of the pixels with transparent window structures, by selectively removing portions of light-emitting diode anodes, and by shifting anodes. An array of electrical components such as an array of light sensors may be aligned with the transparent windows and may be used to measure light passing through the transparent windows.

公开(公告)号：US11417709B2

公开(公告)日：2022-08-16

申请号：US16859904

申请日：2020-04-27

Applicant: Apple Inc.

Inventor： Minhyuk Choi ,  Rui Liu ,  Cheng Chen ,  Chin-Wei Lin ,  Sang Y. Youn ,  Shih Chang Chang ,  Tsung-Ting Tsai

IPC: H01L27/32 ,  G09G3/3233 ,  H01L51/52 ,  H01L31/0232

Abstract: A display may have an array of pixels. Each pixel may have a light-emitting diode such as an organic light-emitting diode. The organic light-emitting diodes may each have an anode that is coupled to a thin-film transistor pixel circuit for controlling the anode. Transparent windows may be formed in the display. The windows may be formed by replacing data storage capacitors and other pixel circuit structures in a subset of the pixels with transparent window structures, by selectively removing portions of light-emitting diode anodes, and by shifting anodes. An array of electrical components such as an array of light sensors may be aligned with the transparent windows and may be used to measure light passing through the transparent windows.

公开(公告)号：US10304411B2

公开(公告)日：2019-05-28

申请号：US15347611

申请日：2016-11-09

Applicant: Apple Inc.

Inventor： Koorosh Aflatooni ,  Sang Y. Youn ,  Mohammad Hajirostam ,  Yun Wang

IPC: G09G3/32 ,  G09G5/10

Abstract: Display panels and methods for operating a display panel are described. In an embodiment, the display panel includes a plurality of pixels arranged in rows and columns, a plurality of rows of emission control lines extending through the plurality of rows of pixels, and a global emission line coupled to the plurality of rows of emission control lines. Modes of operation of the display panel include global flash mode and low persistence mode.

公开(公告)号：US10223975B2

公开(公告)日：2019-03-05

申请号：US14504278

申请日：2014-10-01

Applicant: Apple Inc.

Inventor： Vasudha Gupta ,  Tsung-Ting Tsai ,  Jae Won Choi ,  Sang Y. Youn ,  Young Bae Park ,  Chin-Wei Lin

IPC: G09G3/3291 ,  G09G3/3233 ,  G09G3/3266

Abstract: An electronic device may be provided with an organic light-emitting diode display. The display may include row driver circuitry that provides an emission control signal at an output terminal to display pixels. The emission control signals may enable or disable light emission by the pixels. The row driver circuitry may include a bootstrapping capacitor that stores charge for boosting a gate signal at an intermediate node for a pull-up transistor above a power supply voltage. The row driver circuitry may include a pull-down transistor coupled to the intermediate node. The source terminal of the pull-down transistor may be coupled to the output terminal or an additional pull-down transistor may be stacked with the pull-down transistor to reduce leakage current. Charge pump circuitry may be coupled to the intermediate node to ensure that the intermediate node is maintained at a voltage above the power supply voltage.

公开(公告)号：US20180061366A1

公开(公告)日：2018-03-01

申请号：US15347611

申请日：2016-11-09

Applicant: Apple Inc.

Inventor： Koorosh Aflatooni ,  Sang Y. Youn ,  Mohammad Hajirostam ,  Yun Wang

IPC: G09G5/10

CPC classification number: G09G5/10 ,  G09G3/32 ,  G09G2300/0809 ,  G09G2310/0205 ,  G09G2310/0218 ,  G09G2310/0267 ,  G09G2310/08

Abstract: Display panels and methods for operating a display panel are described. In an embodiment, the display panel includes a plurality of pixels arranged in rows and columns, a plurality of rows of emission control lines extending through the plurality of rows of pixels, and a global emission line coupled to the plurality of rows of emission control lines. Modes of operation of the display panel include global flash mode and low persistence mode.

公开(公告)号：US09472131B2

公开(公告)日：2016-10-18

申请号：US13710884

申请日：2012-12-11

Applicant: Apple Inc.

Inventor： Mir B. Ghaderi ,  Shafiq M. Jamal ,  Sang Y. Youn

IPC: G09G3/00

CPC classification number: G09G3/006

Abstract: A method for testing integrated circuit-to-substrate joints that electrically connect an IC to a substrate. An ammeter is coupled to a test node of the driver IC, while the test node is coupled to a current source, and a measured current output of the ammeter is recorded. A voltmeter is coupled to the test node while the test node is coupled to an end node of a group of dummy IC-to-substrate joints that are daisy chained; a first measured voltage output of the voltmeter is then recorded. The IC then couples the test node to another end node of the daisy chained dummy joints, and a second measured voltage output is recorded. A resistance or admittance value for the electrical connection of the IC to the substrate is then computed, using the first and second measured voltage outputs and the measured current output. Other embodiments are also described and claimed.

Abstract translation: 一种用于测试将IC电连接到衬底的集成电路到衬底接头的方法。 电流表耦合到驱动器IC的测试节点，而测试节点耦合到电流源，并记录电流表的测量电流输出。 电压表耦合到测试节点，而测试节点耦合到菊花链的一组虚拟IC到衬底接头的端节点; 然后记录电压表的第一测量电压输出。 然后，IC将测试节点耦合到菊花链虚拟接头的另一端节点，并记录第二测量电压输出。 然后使用第一和第二测量电压输出和测量的电流输出来计算IC与衬底的电连接的电阻或导纳值。 还描述和要求保护其他实施例。

公开(公告)号：US09190011B2

公开(公告)日：2015-11-17

申请号：US13654242

申请日：2012-10-17

Applicant: APPLE INC.

Inventor： Ahmad Al-Dahle ,  Hopil Bae ,  Sang Y. Youn ,  Yafei Bi ,  Wei H. Yao ,  David A. Stronks

IPC: G09G5/00 ,  G09G3/20

CPC classification number: G09G5/003 ,  G09G3/2092 ,  G09G2330/027 ,  G09G2330/06

Abstract: Methods and devices employing mura prevention circuitry, are provided. In one example, a method may include supplying a first voltage pathway between a common electrode driver and a common electrode of an electronic display device and supplying a second voltage pathway between the common electrode driver and ground. Mura prevention circuitry may be supplied that activates the first voltage pathway when the electronic display device is turned on and an activation gate signal is provided from a gate corresponding to the common electrode driver. Further, the mura prevention circuitry may activate the second voltage pathway when the electronic display device is turned off or no activation gate signal is provided from the gate corresponding to the common electrode driver.

Abstract translation: 提供了采用mura预防电路的方法和装置。 在一个示例中，方法可以包括在公共电极驱动器和电子显示装置的公共电极之间提供第一电压路径，并且在公共电极驱动器和地之间提供第二电压路径。 可以提供Mura防止电路，其在电子显示装置接通时激活第一电压通路，并且从对应于公共电极驱动器的门提供激活门信号。 此外，当电子显示装置关闭或从对应于公共电极驱动器的门提供激活栅极信号时，防护电路可以激活第二电压路径。