公开(公告)号：US20150200207A1

公开(公告)日：2015-07-16

申请号：US14153954

申请日：2014-01-13

Applicant: Apple Inc.

Inventor： Daisuke Nozu ,  Hirokazu Yamagata ,  Hiroshi Osawa ,  Shang-Chih Lin ,  Shih-Chang Chang ,  Yu-Cheng Chen

IPC: H01L27/12 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: H01L27/124 ,  G02F1/133345 ,  G02F1/133502 ,  G02F1/136213 ,  G02F1/136227 ,  G02F1/1368 ,  G02F2001/13606 ,  G02F2001/13685 ,  G02F2201/40 ,  G02F2202/42 ,  H01L27/1255 ,  H01L27/1259

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. A first low-k dielectric layer may be formed on the passivation layer. Data line routing structures may be formed on the first low-k dielectric layer. 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. The first and second low-k dielectric, layers may be formed from material having substantially similar refractive indices to maximize backlight transmittance and may have appropriate thicknesses so as to minimize parasitic capacitive loading.

Abstract translation: 显示器可以具有滤色器层和薄膜晶体管层。 液晶材料层可以位于滤色器层和薄膜晶体管（TFT）层之间。 TFT层可以包括形成在玻璃基板的顶部的薄膜晶体管。 钝化层可以形成在薄膜晶体管层上。 可以在钝化层上形成第一低k电介质层。 数据线路由结构可以形成在第一低k电介质层上。 可以在第一低k电介质层上形成第二低k电介质层。 公共电压电极和相关联的存储电容可以形成在第二低k电介质层上。 第一和第二低k电介质层可以由具有基本上相似的折射率的材料形成，以使背光透射率最大化，并且可以具有适当的厚度，以使寄生电容负载最小化。

公开(公告)号：US20150194443A1

公开(公告)日：2015-07-09

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

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.

Abstract translation: 显示器可以具有滤色器层和薄膜晶体管层。 液晶材料层可以位于滤色器层和薄膜晶体管（TFT）层之间。 TFT层可以包括形成在玻璃基板的顶部的薄膜晶体管。 钝化层可以形成在薄膜晶体管层上。 氧化物衬垫可以形成在钝化层上。 可以在氧化物衬垫上形成第一低k电介质层。 可以在第一低k电介质层上形成第二低k电介质层。 公共电压电极和相关联的存储电容可以形成在第二低k电介质层上。 薄膜晶体管栅极结构可以形成在钝化层中。 导电布线结构可以形成在氧化物衬垫上，在第一低k电介质层上和第二低k电介质层上。 在氧化物衬垫上使用布线结构降低了整体布线电阻，并实现了隔行金属布线，这有助于减少活动显示区域之外的不活动边界区域。

公开(公告)号：US20140225817A1

公开(公告)日：2014-08-14

申请号：US14150579

申请日：2014-01-08

Applicant: Apple Inc.

Inventor： Chun-Yao Huang ,  John Z. Zhong ,  Kyung-Wook Kim ,  Ming-Chin Hung ,  Shih-Chang Chang

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G2310/0286 ,  G09G2330/021 ,  G11C19/28

Abstract: A display may have an array of display pixels. The array may have rows. Each row of the display pixels may receive gate lines signals on a respective gate line. Gate driver circuitry may be used to drive gate line signals onto the gate lines. Each gate line may be coupled to a logic gate in the gate driver circuitry. The logic gates may each be coupled to a respective latch. A termination block in the gate driver circuitry may have a termination block latch and a termination block logic gate. Signal lines may be used to distribute clock signals from display driver circuitry to the logic gates. Respective signal lines may also be used to distribute a pixel charging initiation signal to a latch in the first row of the array and a pixel charging termination signal to the termination block latch.

Abstract translation: 显示器可以具有显示像素阵列。 数组可能有行。 显示像素的每行可以在相应的栅极线上接收栅极线信号。 栅极驱动器电路可用于将栅极线信号驱动到栅极线上。 每个栅极线可以耦合到栅极驱动器电路中的逻辑门。 逻辑门可以各自耦合到相应的锁存器。 栅极驱动器电路中的端接块可以具有端接块锁存器和终端块逻​​辑门。 信号线可用于将显示驱动器电路的时钟信号分配给逻辑门。 各个信号线也可以用于将像素充电起始信号分配给阵列的第一行中的锁存器，并将像素充电终止信号分配给终端块锁存器。

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.

公开(公告)号：US10896642B1

公开(公告)日：2021-01-19

申请号：US16828052

申请日：2020-03-24

Applicant: Apple Inc.

Inventor： Chuang Qian ,  Tsung-Ting Tsai ,  Shyuan Yang ,  Cheng-Chih Hsieh ,  Abbas Jamshidi Roudbari ,  Ting-Kuo Chang ,  Shih-Chang Chang

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G11C19/28

Abstract: Electronic devices may include displays having organic light-emitting diode pixels, display driver circuitry, and gate driver circuitry. To reduce the amount of space occupied in the inactive area of a display by the gate driver circuitry, one or more of the shift registers in the gate driver circuitry may include register circuits that are shared by multiple rows of pixels. Different drivers may use different clock frequencies to ensure synchronous operation of the display even when some register circuits share pixel rows. For increased flexibility in the arrangement of the register circuits in the shift registers, one or more of the shift registers may be split across the active area of the display. In some cases, one of the emission drivers may be omitted from the gate driver circuitry and a single emission driver may provide multiple emission control signals for the pixels.

公开(公告)号：US09997578B2

公开(公告)日：2018-06-12

申请号：US15272295

申请日：2016-09-21

Applicant: Apple Inc.

Inventor： John Z. Zhong ,  Cheng Chen ,  Shih-Chang Chang ,  Victor H. Yin ,  Shawn R. Gettemy ,  Wei Chen

IPC: H01L27/32 ,  G02F1/133 ,  G02F1/1345 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1368 ,  G06F3/044 ,  H01L25/18 ,  H01L51/52 ,  H01L27/12

CPC classification number: H01L27/3262 ,  G02F1/13306 ,  G02F1/13338 ,  G02F1/133514 ,  G02F1/133528 ,  G02F1/13452 ,  G02F1/1368 ,  G02F2201/42 ,  G06F3/044 ,  H01L25/18 ,  H01L27/1218 ,  H01L27/323 ,  H01L27/3258 ,  H01L27/3276 ,  H01L51/5281

Abstract: An electronic device display may have a color filter layer, a thin-film-transistor layer, and a layer of liquid crystal material. The display may have a display cover layer such as a layer of glass or plastic. Adhesive may be used to attach the upper polarizer to the display cover layer. The thin-film transistor layer may have a substrate with upper and lower surfaces. Thin-film-transistor circuitry may be formed on the upper surface. A display driver integrated circuit may be mounted to the lower surface or a flexible printed circuit and may be coupled to the thin-film-transistor circuitry using wire bonding wires. Through vias that are formed through the thin-film-transistor layer substrate may be used in coupling the thin-film-transistor circuitry to the display driver integrated circuit.

公开(公告)号：US09781823B2

公开(公告)日：2017-10-03

申请号：US15273110

申请日：2016-09-22

Applicant: Apple Inc.

Inventor： Benjamin B. Lyon ,  Shih-Chang Chang ,  Martin Paul Grunthaner

IPC: G06F3/045 ,  H05K1/02 ,  G06F3/041 ,  G09G3/20

CPC classification number: H05K1/0242 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04108 ,  G09G3/2092 ,  H05K1/0265 ,  H05K2201/0784 ,  H05K2201/09272 ,  H05K2201/09727 ,  Y10T29/49155

Abstract: The border routing of conductive traces in devices, such as displays, touch sensor panels, and touch screens, to improve border area space usage, thereby reducing device size, and to reduce trace resistance, thereby improving device operation, is disclosed. The conductive traces can form a staggered stair-step configuration in the device border area, in which the average widths of the traces can be different from each other and each trace can have segments with different widths. The conductive traces can be coupled to an active area of the device to transmit signals to and from the active area in accordance with a device operation. The varying widths can help improve the border area space usage, reduce trace resistance, and reduce the differences in resistance between traces.

公开(公告)号：US09612492B2

公开(公告)日：2017-04-04

申请号：US14164026

申请日：2014-01-24

Applicant: Apple Inc.

Inventor： Byung Duk Yang ,  Kyung-Wook Kim ,  Shih-Chang Chang ,  Hiroshi Osawa ,  Hirokazu Yamagata ,  Daisuke Nozu

IPC: G02F1/1362 ,  G02F1/1335

CPC classification number: G02F1/136209 ,  G02F1/133512

Abstract: A display may have a thin-film transistor layer and color filter layer. The display may have an active area and an inactive border area. Light blocking structures in the inactive area may prevent stray backlight from a backlight light guide plate from leaking out of the display. The thin-film transistor layer may have a clear substrate, a patterned black masking layer on the clear substrate, a clear planarization layer on the black masking layer, and a layer of thin-film transistor circuitry on the clear planarization layer. The black masking layer may be formed from black photoimageable polyimide. The clear planarization layer may be formed from spin-on glass. The light blocking structures may include a first layer formed from a portion of the black masking layer and a second layer such as a layer of black tape on the underside of the color filter layer.

公开(公告)号：US09343031B2

公开(公告)日：2016-05-17

申请号：US13687713

申请日：2012-11-28

Applicant: Apple Inc.

Inventor： Cheng-Ho Yu ,  Abbas Jamshidi Roudbari ,  Shih-Chang Chang ,  Ting-Kuo Chang

IPC: G06F3/038 ,  G09G3/36

CPC classification number: G09G3/3677

Abstract: An electronic device display may have an array of display pixels that are controlled using a grid of data lines and gate lines. The display may include compact gate driver circuits that perform gate driver operations to drive corresponding gate lines. Each compact gate driver circuit may include a first driver stage and a second driver stage. The first driver stage may receive a start pulse signal and produce a control signal. The control signal may be stored by a capacitor to identify a control state of the gate driver circuit. The second driver stage may receive the control signal, a clock signal, and a corresponding inverted clock signal and drive the corresponding gate line based on the received signals. The second driver stage may include pass transistor circuitry that passes the clock signal to the corresponding gate line and may include short circuit protection circuitry.

Abstract translation: 电子设备显示器可以具有使用数据线和栅极线的网格来控制的显示像素阵列。 显示器可以包括执行栅极驱动器操作以驱动相应的栅极线的紧凑型栅极驱动器电路。 每个紧凑型栅极驱动器电路可以包括第一驱动器级和第二驱动级。 第一驱动级可以接收起始脉冲信号并产生控制信号。 控制信号可以由电容器存储以识别栅极驱动器电路的控制状态。 第二驱动级可以接收控制信号，时钟信号和对应的反相时钟信号，并根据接收到的信号驱动相应的栅极线。 第二驱动器级可以包括传递晶体管电路，其将时钟信号传递到对应的栅极线并且可以包括短路保护电路。

公开(公告)号：US20160085125A1

公开(公告)日：2016-03-24

申请号：US14947880

申请日：2015-11-20

Applicant: Apple Inc.

Inventor： Young Bae Park ,  John Z. Zhong ,  Shih-Chang Chang ,  Wei Chen

IPC: G02F1/1362 ,  G02F1/1345 ,  H01L27/12 ,  H01L27/32 ,  H01L51/00 ,  G02F1/133 ,  G02F1/1333

CPC classification number: G02F1/136286 ,  G02F1/13306 ,  G02F1/1333 ,  G02F1/133305 ,  G02F1/13452 ,  H01L27/1218 ,  H01L27/124 ,  H01L27/323 ,  H01L27/3276 ,  H01L27/3279 ,  H01L27/3297 ,  H01L51/0097 ,  H01L51/52 ,  H01L51/5203 ,  H01L51/524 ,  H01L2251/5338

Abstract: A display may be provided with an active central region and a peripheral inactive region. The display may have one or more flexible edges in the peripheral inactive region. Conductive lines may pass between components in the active central region such as display pixels and touch sensor electrodes and components in the inactive peripheral region such as gate driver circuitry and patterned interconnect lines. Each conductive line may have an unbent segment on a portion of a display layer in the active central region and may have a segment on the bent edge of the display layer. The display layer may be formed from a polymer or other flexible material. The bent segments may be configured to be less susceptible to increases in resistance from bending than the unbent segments.

Abstract translation: 显示器可以设置有活动中心区域和外围无效区域。 显示器可以在外围无效区域中具有一个或多个柔性边缘。 导电线可以在有源中心区域中的组件之间通过，例如显示像素和触摸传感器电极以及非活动外围区域中的组件，例如栅极驱动器电路和图案化的互连线。 每个导线可以在活动中心区域中的显示层的一部分上具有未弯曲部分，并且可以在显示层的弯曲边缘上具有一段。 显示层可以由聚合物或其它柔性材料形成。 弯曲的部分可以被配置为比未弯曲部分更不易受弯曲阻力的增加。