公开(公告)号：US11233113B2

公开(公告)日：2022-01-25

申请号：US16826521

申请日：2020-03-23

Applicant: Apple Inc.

Inventor： Cheng-Ho Yu ,  Chin-Wei Lin ,  Shyuan Yang ,  Ting-Kuo Chang ,  Tsung-Ting Tsai ,  Warren S. Rieutort-Louis ,  Shih-Chang Chang ,  Yu Cheng Chen ,  John Z. Zhong

IPC: H01L27/32 ,  G09G3/3233 ,  G09G3/3266 ,  G06F3/044

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 using horizontal control lines. Each pixel may have first and second emission enable transistors that are coupled in series with a drive transistor and the light-emitting diode of that pixel. The first and second emission enable transistors may be coupled to a common control line or may be separately controlled so that on-bias stress can be effectively applied to the drive transistor. The display driver circuitry may have gate driver circuits that provide different gate line signals to different rows of pixels within the display. Different rows may also have different gate driver strengths and different supplemental gate line loading structures.

公开(公告)号：US10302844B2

公开(公告)日：2019-05-28

申请号：US14918405

申请日：2015-10-20

Applicant: Apple Inc.

Inventor： Ming Xu ,  Cheng Chen ,  Hiroshi Osawa ,  Yu Cheng Chen

IPC: F21V8/00 ,  G02F1/1335 ,  G02F1/1362

Abstract: A display may have an array of pixels. The pixels may have color filter elements such as red, green, and blue color filter elements. A layer of opaque material may be used to form a black matrix. The black matrix may have openings that receive the color filter elements. A backlight unit may produce backlight illumination for the display. A reflector layer may be interposed between the black matrix and the backlight unit. The reflector layer may have openings aligned with the openings in the black matrix and the color filter elements and may overlap the black matrix. Some of the backlight from the backlight unit may pass through the color filter elements. Other backlight may by be recycled by being reflected off of the reflector layer, thereby enhancing backlight efficiency.

公开(公告)号：US10048788B2

公开(公告)日：2018-08-14

申请号：US15065284

申请日：2016-03-09

Applicant: Apple Inc.

Inventor： Yu Cheng Chen ,  Abbas Jamshidi-Roudbari ,  Hiroshi Osawa ,  Shang-Chih Lin ,  Shih-Chang Chang ,  Shin-Hung Yeh ,  Ting-Kuo Chang ,  Majid Gharghi ,  Keitaro Yamashita

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1343 ,  G06F3/044

Abstract: Improvement of visual uniformity of an integrated touch screen display is provided. A touch screen can include common electrodes separated by gaps in a Vcom layer. To improve visual non-uniformity in the display resulting from the gaps, a first set of semi-transparent dummy features (primary-dummy features) can be formed on a second layer at the locations of the gaps, and a second set of dummy features (supplementary-dummy features) can also be formed on the second layer or another layer to mitigate low spatial resolution of the primary-dummy features and/or non-uniform spacing of the primary-dummy features. In some examples, holes or slits can be formed in the Vcom layer at areas of the supplementary-dummy features to further improve visual uniformity.

公开(公告)号：US09704888B2

公开(公告)日：2017-07-11

申请号：US14150458

申请日：2014-01-08

Applicant: Apple Inc.

Inventor： Yu Cheng Chen ,  Shih-Chang Chang ,  Hiroshi Osawa ,  Ting-Kuo Chang

IPC: H01L27/12 ,  H01L29/786

CPC classification number: H01L27/124 ,  H01L27/1248 ,  H01L29/78633 ,  H01L29/78645

Abstract: A display may have a color filter layer and a thin-film transistor layer. A layer of liquid crystal material may be located between the color filter layer and the thin-film transistor (TFT) layer. The TFT layer may include thin-film transistors formed on top of a glass substrate. A passivation layer may be formed on the thin-film transistor layers. An oxide liner may be formed on the passivation layer. A first low-k dielectric layer may be formed on the oxide liner. A second low-k dielectric layer may be formed on the first low-k dielectric layer. A common voltage electrode and associated storage capacitance may be formed on the second low-k dielectric layer. Thin-film transistor gate structures may be formed in the passivation layer. Conductive routing structures may be formed on the oxide liner, on the first low-k dielectric layer, and on the second low-k dielectric layer. The use of routing structures on the oxide liner reduces overall routing resistance and enables interlaced metal routing, which can help reduce the inactive border area outside the active display regions.

公开(公告)号：US20140124750A1

公开(公告)日：2014-05-08

申请号：US13837656

申请日：2013-03-15

Applicant: APPLE INC.

Inventor： Shih Chang Chang ,  Yu Cheng Chen

IPC: H01L27/32 ,  H01L51/56

CPC classification number: H01L27/3248 ,  H01L27/3262

Abstract: Devices and methods for increasing the aperture ratio and providing more precise gray level control to pixels in an active matrix organic light emitting diode (AMOLED) display are provided. By way of example, one embodiment includes disposing a gate insulator between a gate of a driving thin-film transistor and a gate of a circuit thin-film transistor. The improved structure of the display facilitates a higher voltage range for controlling the gray level of the pixels, and may increase the aperture ratio of the pixels.

Abstract translation: 提供了用于增加开口率并为有源矩阵有机发光二极管（AMOLED）显示器中的像素提供更精确的灰度级控制的装置和方法。 作为示例，一个实施例包括在驱动薄膜晶体管的栅极和电路薄膜晶体管的栅极之间设置栅极绝缘体。 显示器的改进的结构有助于用于控制像素的灰度级的更高的电压范围，并且可以增加像素的开口率。

公开(公告)号：US20190148465A1

公开(公告)日：2019-05-16

申请号：US16224607

申请日：2018-12-18

Applicant: Apple Inc.

Inventor： Cheng-Ho Yu ,  Chin-Wei Lin ,  Shyuan Yang ,  Ting-Kuo Chang ,  Tsung-Ting Tsai ,  Warren S. Rieutort-Louis ,  Shih-Chang Chang ,  Yu Cheng Chen ,  John Z. Zhong

IPC: H01L27/32 ,  G09G3/3266 ,  G06F3/044 ,  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 using horizontal control lines. Each pixel may have first and second emission enable transistors that are coupled in series with a drive transistor and the light-emitting diode of that pixel. The first and second emission enable transistors may be coupled to a common control line or may be separately controlled so that on-bias stress can be effectively applied to the drive transistor. The display driver circuitry may have gate driver circuits that provide different gate line signals to different rows of pixels within the display. Different rows may also have different gate driver strengths and different supplemental gate line loading structures.

公开(公告)号：US20180204889A1

公开(公告)日：2018-07-19

申请号：US15919057

申请日：2018-03-12

Applicant: Apple Inc.

Inventor： Cheng-Ho Yu ,  Chin-Wei Lin ,  Shyuan Yang ,  Ting-Kuo Chang ,  Tsung-Ting Tsai ,  Warren S. Rieutort-Louis ,  Shih-Chang Chang ,  Yu Cheng Chen ,  John Z. Zhong

IPC: H01L27/32 ,  G09G3/3233 ,  G06F3/044

CPC classification number: H01L27/3223 ,  G06F3/044 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0426 ,  G09G2300/0809 ,  G09G2310/0232 ,  G09G2320/0223 ,  G09G2320/0233 ,  H01L27/323 ,  H01L27/3276 ,  H01L2227/32

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 using horizontal control lines. Each pixel may have first and second emission enable transistors that are coupled in series with a drive transistor and the light-emitting diode of that pixel. The first and second emission enable transistors may be coupled to a common control line or may be separately controlled so that on-bias stress can be effectively applied to the drive transistor. The display driver circuitry may have gate driver circuits that provide different gate line signals to different rows of pixels within the display. Different rows may also have different gate driver strengths and different supplemental gate line loading structures.

公开(公告)号：US20160209691A1

公开(公告)日：2016-07-21

申请号：US14850006

申请日：2015-09-10

Applicant: Apple Inc.

Inventor： Byung Duk Yang ,  Chia Hsuan Tai ,  Hiroshi Osawa ,  Kyung Wook Kim ,  Ming-Chin Hung ,  Shang-Chih Lin ,  Shih Chang Chang ,  Yu Cheng Chen ,  Yuan Chen

IPC: G02F1/1368 ,  H01L29/51 ,  H01L29/786 ,  G02F1/1335 ,  G02F1/1362

CPC classification number: G02F1/1368 ,  G02B6/00 ,  G02F1/133345 ,  G02F1/13338 ,  G02F1/133514 ,  G02F1/133528 ,  G02F1/1362 ,  G02F1/136209 ,  G02F2001/133521 ,  G02F2001/136222 ,  H01L29/518 ,  H01L29/78606

Abstract: A display may have upper and lower display layers. A layer of liquid crystal material may be interposed between the upper and lower display layers. The display layers may have substrates. The display layers may include a color filter layer having an array of color filter elements on a glass substrate and a thin-film transistor layer having a layer of thin-film transistor circuitry on a glass substrate. Dielectric layers within the display layers such as dielectric layers within the thin-film transistor layer may have differing indices of refraction. Reflections and color shifts due to index of refraction discontinuities may be minimized by interposing graded index dielectric layers between adjacent layers with different indices. The graded index layers may be formed from structures with a continuously varying index of refraction or structures with a step-wise varying index of refraction.

Abstract translation: 显示器可以具有上和下显示层。 可以在上显示层和下显示层之间插入一层液晶材料。 显示层可以具有基底。 显示层可以包括在玻璃基板上具有滤色器元件阵列的滤色器层和在玻璃基板上具有薄膜晶体管电路层的薄膜晶体管层。 诸如薄膜晶体管层内的介电层的显示层内的电介质层可以具有不同的折射率。 由于折射不连续指数引起的反射和颜色偏移可以通过在不同指数的相邻层之间插入渐变折射率介电层来最小化。 渐变折射率层可以由具有连续变化的折射率的结构或具有逐步变化的折射率的结构形成。

公开(公告)号：US20140125565A1

公开(公告)日：2014-05-08

申请号：US13667942

申请日：2012-11-02

Applicant: APPLE INC.

Inventor： Shih Chang Chang ,  Yu Cheng Chen

IPC: G09G3/30

CPC classification number: H01L27/1237

Abstract: Devices and methods for increasing the aperture ratio and providing more precise gray level control to pixels in an active matrix organic light emitting diode (AMOLED) display are provided. By way of example, one embodiment includes disposing a gate insulator and an interlayer dielectric material between a gate electrode of a thin-film transistor of a driving circuit and a channel of the thin-film transistor. The improved structure of the driving circuit facilitates a higher voltage range for controlling the gray level of the pixels, and may increase the aperture ratio of the pixels.

Abstract translation: 提供了用于增加开口率并为有源矩阵有机发光二极管（AMOLED）显示器中的像素提供更精确的灰度级控制的装置和方法。 作为示例，一个实施例包括在驱动电路的薄膜晶体管的栅电极和薄膜晶体管的沟道之间布置栅绝缘体和层间电介质材料。 驱动电路的改进的结构有助于控制像素的灰度级的更高的电压范围，并且可以增加像素的开口率。

公开(公告)号：US12207512B2

公开(公告)日：2025-01-21

申请号：US18513132

申请日：2023-11-17

Applicant: Apple Inc.

Inventor： Cheng-Ho Yu ,  Chin-Wei Lin ,  Shyuan Yang ,  Ting-Kuo Chang ,  Tsung-Ting Tsai ,  Warren S. Rieutort-Louis ,  Shih-Chang Chang ,  Yu Cheng Chen ,  John Z. Zhong

IPC: H10K59/131 ,  G06F3/044 ,  G09G3/3233 ,  G09G3/3266 ,  H10K59/10 ,  H10K59/40 ,  H10K59/88

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 using horizontal control lines. Each pixel may have first and second emission enable transistors that are coupled in series with a drive transistor and the light-emitting diode of that pixel. The first and second emission enable transistors may be coupled to a common control line or may be separately controlled so that on-bias stress can be effectively applied to the drive transistor. The display driver circuitry may have gate driver circuits that provide different gate line signals to different rows of pixels within the display. Different rows may also have different gate driver strengths and different supplemental gate line loading structures.