公开(公告)号：US11210990B2

公开(公告)日：2021-12-28

申请号：US16325260

申请日：2017-08-15

Applicant: Apple Inc.

Inventor： Ivan Knez ,  Cheuk Chi Lo ,  Akira Matsudaira ,  Chun-Yao Huang ,  Giovanni Carbone ,  Paolo Sacchetto ,  Chaohao Wang ,  Sheng Zhang ,  Adam Adjiwibawa

IPC: G09G3/20 ,  G09G5/36 ,  G09G5/391 ,  G09G5/397

Abstract: An electronic device may have a display and a gaze tracking system. The electronic device may display images on the display that have a higher resolution in a portion of the display that overlaps a gaze location than other portions of the display. Timing controller circuitry and column driver circuitry may include interpolation and filter circuitry. The interpolation and filter circuitry may be used to perform nearest neighbor interpolation and two-dimensional spatial filtering on low resolution image data. Display driver circuitry may be configured to load higher resolution data into selected portions of a display. The display driver circuitry may include low and high resolution image data buffers and configurable row driver circuitry. Block enable transistors may be included in a display to allow selected blocks of pixels to be loaded with high resolution image data.

公开(公告)号：US20190180672A1

公开(公告)日：2019-06-13

申请号：US16325260

申请日：2017-08-15

Applicant: Apple Inc.

Inventor： Ivan Knez ,  Cheuk Chi Lo ,  Akira Matsudaira ,  Chun-Yao Huang ,  Giovanni Carbone ,  Paolo Sacchetto ,  Chaohao Wang ,  Sheng Zhang ,  Adam Adjiwibawa

IPC: G09G3/20 ,  G09G5/391 ,  G09G5/36 ,  G09G5/397

Abstract: An electronic device may have a display and a gaze tracking system. The electronic device may display images on the display that have a higher resolution in a portion of the display that overlaps a gaze location than other portions of the display. Timing controller circuitry and column driver circuitry may include interpolation and filter circuitry. The interpolation and filter circuitry may be used to perform nearest neighbor interpolation and two-dimensional spatial filtering on low resolution image data. Display driver circuitry may be configured to load higher resolution data into selected portions of a display. The display driver circuitry may include low and high resolution image data buffers and configurable row driver circuitry. Block enable transistors may be included in a display to allow selected blocks of pixels to be loaded with high resolution image data.

公开(公告)号：US20180337687A1

公开(公告)日：2018-11-22

申请号：US15600356

申请日：2017-05-19

Applicant: Apple Inc.

Inventor： Adam Adjiwibawa ,  David W. Lum ,  Wonjae Choi ,  Hynwoo Nho ,  Hopil Bae ,  Injae Hwang ,  Bryce T. Bradford ,  Jie Won Ryu ,  Hung Sheng Lin

IPC: H03M1/66 ,  H03M1/80 ,  G09G3/20

Abstract: A display device may include rows of pixels that displays image data on a display, data lines coupled to the rows of pixels, and a digital-to-analog converter (DAC) that outputs a ramp voltage signal including a data voltage to be depicted on a first pixel of the rows of pixels. The display device may also include a capacitor that receives the ramp voltage signal via the DAC and a circuit that sends a control signal to a circuit component that causes the DAC to couple to the capacitor via one of the data lines for a duration of time that comprises a first time when the ramp voltage signal is below the data voltage and a second time when the ramp voltage signal is approximately equal to the data voltage. The capacitor is coupled to the DAC when the ramp voltage signal is greater than zero.

公开(公告)号：US20140168047A1

公开(公告)日：2014-06-19

申请号：US13718116

申请日：2012-12-18

Applicant: APPLE INC.

Inventor： Taesung Kim ,  Adam Adjiwibawa

IPC: G09G3/36

CPC classification number: G09G3/3648 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2330/026 ,  G09G2330/027

Abstract: An electronic device may have a display that has column driver circuitry for providing data line signals to data lines in an array of display pixels. Gate line signals on gate lines in the array and the data line signals may be used in controlling the array to display images for a user of the electronic device. The column driver circuitry may include voltage divider circuitry such as a chain of resistors with reference voltage nodes. The nodes may be provided with reference voltages from corresponding input pins. During normal operation of the column driver circuitry, a voltage supply may supply a set of column driver voltage divider reference voltages to the input pins. During power state transitions when power supply lines for the column driver circuitry might be subjected to undesirable current surges, the voltage supply may be used in supplying transitional voltages to the input pins.

Abstract translation: 电子设备可以具有显示器，其具有列驱动器电路，用于向显示像素阵列中的数据线提供数据线信号。 阵列中栅极线上的栅极线信号和数据线信号可用于控制阵列以显示电子设备的用户的图像。 列驱动器电路可以包括分压器电路，例如具有参考电压节点的电阻链。 节点可以被提供有来自相应输入引脚的参考电压。 在列驱动器电路的正常操作期间，电压源可以向输入引脚提供一组列驱动器分压器参考电压。 在列驱动器电路的电源线可能受到不期望的电流浪涌时，在电源状态转换期间，可以使用电压供应来向输入引脚提供过渡电压。