公开(公告)号：US20190206321A1

公开(公告)日：2019-07-04

申请号：US16325236

申请日：2017-08-10

Applicant: Apple Inc.

Inventor： Cheuk Chi Lo ,  Chin-Wei Lin ,  Chun-Yao Huang ,  Shih Chang Chang

IPC: G09G3/3233 ,  G09G3/3291 ,  H01L27/32

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0439 ,  G09G2300/0819 ,  G09G2300/0866 ,  G09G2310/06 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0295 ,  G09G2320/045 ,  G09G2320/0693 ,  G09G2330/026 ,  H01L27/3276

Abstract: A display has rows and columns of pixels (22). A data line (Dn) in each column provides image data signals to the pixels of that column. Each row has first and second control lines (select[m], monitor[m]) coupled to the gates of first and second respective transistors (SE, MO) in each pixel. A third transistor in each pixel serves as a drive transistor (DR) and is coupled in series with a light-emitting diode (30) between positive and ground power supply voltages (VDD, VSS). A display driver circuitry in the display characterizes each of the light-emitting diodes in a column using the data line in an adjacent column from that light-emitting diode. Each of the drive transistors in a column is characterized using the data line in that column and the data line in an adjacent column.

公开(公告)号：US20190197954A1

公开(公告)日：2019-06-27

申请号：US16289007

申请日：2019-02-28

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Hung Sheng Lin ,  Shih Chang Chang ,  Shinya Ono

IPC: G09G3/3233 ,  H01L27/12 ,  G09G3/3266 ,  H01L29/786 ,  G09G3/3275

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0202 ,  G09G2320/0295 ,  G09G2320/043 ,  H01L27/1225 ,  H01L29/78651 ,  H01L29/7869

Abstract: A display may have an array of pixels each of which has a light-emitting diode such as an organic light-emitting diode. A drive transistor and an emission transistor may be coupled in series with the light-emitting diode of each pixel between a positive power supply and a ground power supply. The pixels may include first and second switching transistors. A data storage capacitor may be coupled between a gate and source of the drive transistor in each pixel. Signal lines may be provided in columns of pixels to route signals such as data signals, sensed drive currents from the drive transistors, and predetermined voltages between display driver circuitry and the pixels. The switching transistors, emission transistors, and drive transistors may include semiconducting-oxide transistors and silicon transistors and may be n-channel transistors or p-channel transistors.

公开(公告)号：US20190172399A1

公开(公告)日：2019-06-06

申请号：US16323751

申请日：2017-08-14

Applicant: Apple Inc.

Inventor： Cheng Chen ,  Jason C. Sauers ,  Fletcher R. Rothkopf ,  David W. Lum ,  Chun-Yao Huang ,  Enkhamgalan Dorjgotov ,  Graham B. Myhre ,  Bennett S. Wilburn ,  Paolo Sacchetto ,  Shih Chang Chang ,  Wonjae Choi ,  Cheuk Chi Lo

IPC: G09G3/3266 ,  G09G3/3275 ,  G09G3/36

Abstract: An electronic device such as a head-mounted device may have displays. The display may have regions of lower (L) and higher (M, H) resolution to reduce data bandwidth and power consumption for the display while preserving satisfactory image quality. Data lines may be shared by lower and higher resolution portions of a display or different portions of a display with different resolutions may be supplied with different numbers of data lines. Data line length may be varied in transition regions between lower resolution and higher resolution portions of a display to reduce visible discontinuities between the lower and higher resolution portions. The lower and higher resolution portions of the display may be dynamically adjusted using dynamically adjustable gate driver circuitry and dynamically adjustable data line driver circuitry.

公开(公告)号：US10288963B2

公开(公告)日：2019-05-14

申请号：US15643367

申请日：2017-07-06

Applicant: Apple Inc.

Inventor： Patrick B. Bennett ,  Kwang Soon Park ,  Chun-Yao Huang ,  Byung Duk Yang ,  Shih Chang Chang

IPC: G06F3/038 ,  G09G5/00 ,  G02F1/1362 ,  H01L27/12 ,  G09G3/20 ,  G02F1/1345

Abstract: A display may have an array of pixels arranged in rows and columns. Display driver circuitry may be provided along an edge of the display. Data lines that are associated with columns of the pixels may be used to distribute data from the display driver circuitry to the pixels. Gate lines in the display may each have a horizontal straight portion that extends along a respective row of the pixels and may each have one or more non-horizontal segments such as zigzag segments. The non-horizontal portion of each gate line may be connected to the horizontal straight portion of the gate line by a via. The non-horizontal portions may each have portions that are overlapped by portions of the data lines. Dummy gate line structures may be provided on the display that are not coupled to any of the pixels in the display.

公开(公告)号：US10262586B2

公开(公告)日：2019-04-16

申请号：US15234564

申请日：2016-08-11

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Shih Chang Chang ,  Vasudha Gupta

IPC: G09G3/3258 ,  G09G3/3233

Abstract: A display may have an array of pixels. Display driver circuitry may supply data and control signals to the pixels. Each pixel may have seven transistors, a capacitor, and a light-emitting diode such as an organic light-emitting diode. The seven transistors may receive control signals over three control lines, may receive data over a data line, may receive a reference voltage from a reference voltage terminal, and may receive power from a pair of power supply terminals. The display driver circuitry may repeatedly operate each pixel in an initialization phase in which the drive transistor is preconditioned with on-bias stress, a data loading and threshold voltage sampling phase, and an emission phase.

公开(公告)号：US10224238B2

公开(公告)日：2019-03-05

申请号：US15268106

申请日：2016-09-16

Applicant: Apple Inc.

Inventor： Chang Ming Lu ,  Chia-Yu Chen ,  Chih Pang Chang ,  Ching-Sang Chuang ,  Hung-Che Ting ,  Jung Yen Huang ,  Sheng Hui Shen ,  Shih Chang Chang ,  Tsung-Hsiang Shih ,  Yu-Wen Liu ,  Yu Hung Chen ,  Kai-Chieh Wu ,  Lun Tsai ,  Takahide Ishii ,  Chung-Wang Lee ,  Hsing-Chuan Wang ,  Chin Wei Hsu ,  Fu-Yu Teng

IPC: H01L21/768 ,  H01L21/02 ,  H01L21/027 ,  H01L21/77

Abstract: A component such as a display may have a substrate and thin-film circuitry on the substrate. The thin-film circuitry may be used to form an array of pixels for a display or other circuit structures. Metal traces may be formed among dielectric layers in the thin-film circuitry. Metal traces may be provided with insulating protective sidewall structures. The protective sidewall structures may be formed by treating exposed edge surfaces of the metal traces. A metal trace may have multiple layers such as a core metal layer sandwiched between barrier metal layers. The core metal layer may be formed from a metal that is subject to corrosion. The protective sidewall structures may help prevent corrosion in the core metal layer. Surface treatments such as oxidation, nitridation, and other processes may be used in forming the protective sidewall structures.

公开(公告)号：US20190035346A1

公开(公告)日：2019-01-31

申请号：US16144741

申请日：2018-09-27

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Jungbae Kim ,  Kyung Wook Kim ,  Minkyu Kim ,  Shih Chang Chang ,  Vasudha Gupta ,  Young Bae Park

IPC: G09G3/36 ,  G09G3/3233 ,  G02F1/1368 ,  G02F1/1362 ,  G02F1/1343

CPC classification number: G09G3/3648 ,  G02F1/134363 ,  G02F1/136213 ,  G02F1/13624 ,  G02F1/136286 ,  G02F1/1368 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/043

Abstract: A display may have an array of light-emitting diode pixels or pixels containing portions of a liquid crystal layer to which electric fields are applied using electrodes. A pixel with a light-emitting diode may have a drive transistor coupled in series with the light-emitting diode. A storage capacitor may be coupled to a gate of the drive transistor. A pixel with a liquid crystal portion may have a storage capacitor coupled to a given one of the electrodes in that pixel. Switching circuitry in each pixel may be used to load data from a data line into the storage capacitor of the pixel. The switching circuitry may include a semiconducting-oxide transistor coupled to an associated data line and a series-connected silicon transistor that is coupled to the storage capacitor.

公开(公告)号：US20190006394A1

公开(公告)日：2019-01-03

申请号：US16125973

申请日：2018-09-10

Applicant: Apple Inc.

Inventor： Vasudha Gupta ,  Jae Won Choi ,  Shih Chang Chang ,  Tsung-Ting Tsai ,  Young Bae Park

IPC: H01L27/12 ,  G02F1/1362 ,  G02F1/1368 ,  H01L27/32 ,  G02F1/1345 ,  H01L29/786

Abstract: An electronic device may include a display having an array of display pixels on a substrate. The display pixels may be organic light-emitting diode display pixels or display pixels in a liquid crystal display. In an organic light-emitting diode display, hybrid thin-film transistor structures may be formed that include semiconducting oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. The capacitor structures may overlap the semiconducting oxide thin-film transistors. Organic light-emitting diode display pixels may have combinations of oxide and silicon transistors. In a liquid crystal display, display driver circuitry may include silicon thin-film transistor circuitry and display pixels may be based on oxide thin-film transistors. A single layer or two different layers of gate metal may be used in forming silicon transistor gates and oxide transistor gates. A silicon transistor may have a gate that overlaps a floating gate structure.

公开(公告)号：US10121430B2

公开(公告)日：2018-11-06

申请号：US14942068

申请日：2015-11-16

Applicant: Apple Inc.

Inventor： Chin-Wei Lin ,  Jungbae Kim ,  Kyung Wook Kim ,  MinKyu Kim ,  Shih Chang Chang ,  Vasudha Gupta ,  Young Bae Park

IPC: G09G3/36 ,  G09G3/3233 ,  G02F1/1368 ,  G02F1/1362 ,  G02F1/1343

Abstract: A display may have an array of light-emitting diode pixels or pixels containing portions of a liquid crystal layer to which electric fields are applied using electrodes. A pixel with a light-emitting diode may have a drive transistor coupled in series with the light-emitting diode. A storage capacitor may be coupled to a gate of the drive transistor. A pixel with a liquid crystal portion may have a storage capacitor coupled to a given one of the electrodes in that pixel. Switching circuitry in each pixel may be used to load data from a data line into the storage capacitor of the pixel. The switching circuitry may include a semiconducting-oxide transistor coupled to an associated data line and a series-connected silicon transistor that is coupled to the storage capacitor.

公开(公告)号：US09965995B2

公开(公告)日：2018-05-08

申请号：US14990606

申请日：2016-01-07

Applicant: Apple Inc.

Inventor： Yu Cheng Chen ,  Tsung-Ting Tsai ,  Shih Chang Chang

IPC: G09G3/20 ,  G02F1/1345 ,  G09G3/36

CPC classification number: G09G3/2092 ,  G02F1/1345 ,  G02F2201/56 ,  G09G3/20 ,  G09G3/3666 ,  G09G2300/0426 ,  G09G2300/0439 ,  G09G2300/08 ,  G09G2310/0221 ,  G09G2310/0264 ,  G09G2310/0281 ,  G09G2310/0286

Abstract: A display may have an array of pixels. The array of pixels may have a shape such as a circular shape or other shape with a curved edge. Display driver circuitry may supply data signals to the pixels using folded vertical data lines and bisected horizontal gate lines. Each folded vertical lines may have a first segment in a left half of the array and a second segment in a right half of the display. Curved coupling segments in an inactive area of the display may be used in joining the first and second segments. Display driver circuits may be provided in top and bottom portions of the inactive area to supply data to respective top and bottom portions of the array. Gate driver output buffers may have different strengths in different rows of the array.