公开(公告)号：US20210241693A1

公开(公告)日：2021-08-05

申请号：US17048692

申请日：2018-09-26

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Hsing-Hung Hsieh ,  Cheng-Hua Yu ,  Ann Alejandro Villegas

IPC: G09G3/3258

Abstract: In an example implementation according to aspects of the present disclosure, a system including a controller to receive a temperature value, from a temperature sensor corresponding to a sub-pixel in an organic light emitting display. The controller calculates a luminous value of the sub-pixel based on the temperature value and a function corresponding to a degradation of luminosity over time and temperature. The controller determines, based on the luminous value, a corrected luminous value corresponding to a target luminous value. The controller retrieves a voltage value from a second database, wherein the second database comprises a luminous-voltage relationship. The controller applies the voltage value to the sub-pixel.

公开(公告)号：US20210183307A1

公开(公告)日：2021-06-17

申请号：US17048764

申请日：2018-09-05

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Hsing-Hung Hsieh ,  Super Liao ,  Ann Alejandro Villegas

IPC: G09G3/3225

Abstract: An organic light-emitting diode (OLED) circuit that includes a first, second, third, fourth, fifth, sixth, seventh, and eighth transistor; a capacitor; a first select line, a second select line, and a third select line; and a data line; wherein the consecutive selection of the first select line, second select line, and third select line compensates for a threshold voltage in the second transistor.

公开(公告)号：US20200319508A1

公开(公告)日：2020-10-08

申请号：US16479250

申请日：2017-12-12

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Hsing-Hung Hsieh ,  Alexander Wayne Clark ,  Ann Alejandro Villegas

IPC: G02F1/13357 ,  G09G3/36

Abstract: Example implementations relate to liquid crystal display (LCD) lighting modes. An example device can include an LCD, a wide gamut light-emitting diode (LED) light set to backlight the LCD, a narrow gamut LED light set to backlight the LCD and a controller communicatively coupled to the LCD. The controller can switch the LCD between a wide gamut lighting mode, a narrow gamut lighting mode, and a high brightness lighting mode in response to changes in ambient light and content displayed on the LCD.

公开(公告)号：US12147282B2

公开(公告)日：2024-11-19

申请号：US18005183

申请日：2020-08-03

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Fangyong Dai ,  Qijun Chen ,  Ann Alejandro Villegas ,  Ling Wei Chung ,  Daniel Joseph Luc

IPC: G06F1/26

Abstract: In some examples, an electronic device comprises a processor and a power circuit coupled to the processor. The power circuit is to provide power to the processor and to measure a current drawn from the power circuit by the processor. The electronic device also comprises a voltage regulator controller coupled to the processor and the power circuit. The voltage regulator controller is to receive a current usage prediction from the processor, receive the measurement from the power circuit, compare the current usage prediction and the measurement, and, based on the comparison, drive the power circuit in accordance with the measurement instead of the current usage prediction.

公开(公告)号：US20220342257A1

公开(公告)日：2022-10-27

申请号：US17765288

申请日：2019-10-30

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Hsing-Hung Hsieh ,  Ann Alejandro Villegas ,  Dehuei Chen

IPC: G02F1/1335

Abstract: Example displays are disclosed that include a plurality of pixels, each pixel including a first sub-pixel and a set of second sub-pixels. In addition, the displays include a plurality of opaque structures aligned with the first sub-pixels, each opaque structure including a reflective surface to scatter light emitted from the first sub-pixels.

公开(公告)号：US11320887B2

公开(公告)日：2022-05-03

申请号：US16076217

申请日：2017-07-06

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Alan Man Pan Tam ,  Hui Leng Lim ,  Ann Alejandro Villegas

IPC: G06F3/038 ,  G06F1/3234

Abstract: A technique includes detecting a power transition of a processor-based system and controlling operation of a camera of the processor-based system based on the detection of the power transition. Controlling the operation of the camera includes triggering a process to disable the camera in response to detection of the power transition.

公开(公告)号：US11296173B2

公开(公告)日：2022-04-05

申请号：US16481464

申请日：2017-12-08

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Hsing-Hung Hsieh ,  Ann Alejandro Villegas ,  Chi Hao Chang

IPC: H01L27/32 ,  H01L51/56

Abstract: In example implementations, a display is provided. The display includes a first portion and a second portion. The first portion includes a first plurality of light emitting diodes (LEDs) that emit light in a first direction. The second portion includes a combination of the first plurality of LEDs that emit light in the first direction and a second plurality of LEDs that emit light in a second direction that is opposite the first direction to form a dual-sided display.

公开(公告)号：US20210312875A1

公开(公告)日：2021-10-07

申请号：US17042158

申请日：2018-11-27

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Hsing-Hung Hsieh ,  Cheng-Hua Yu ,  Ann Alejandro Villegas

IPC: G09G3/34 ,  G02F1/13357

Abstract: A controller to control the light intensity of a first light source and a second light source based on a video signal of a video to be displayed on the display, the decay curve, and usage data regarding the first light source and second light source.

公开(公告)号：US20210263365A1

公开(公告)日：2021-08-26

申请号：US17042155

申请日：2018-11-14

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Hsing-Hung Hsieh ,  Chi Hao Chang ,  Ann Alejandro Villegas

IPC: G02F1/1343 ,  G02F1/1335

Abstract: An example device includes a light source, a liquid crystal layer, and an array of pixel electrodes disposed between the light source and the liquid crystal layer. The array of pixel electrodes is to control orientation of liquid crystal of the liquid crystal layer to modulate light incident from the light source to produce an image composed of pixels. The example device further includes an array of scattering electrodes to selectively influence orientation of liquid crystal of the liquid crystal layer to degrade contrast of selected pixels of the image.

公开(公告)号：US11029560B2

公开(公告)日：2021-06-08

申请号：US16479250

申请日：2017-12-12

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Hsing-Hung Hsieh ,  Alexander Wayne Clark ,  Ann Alejandro Villegas

IPC: G02F1/13357 ,  G09G3/36

Abstract: Example implementations relate to liquid crystal display (LCD) lighting modes. An example device can include an LCD, a wide gamut light-emitting diode (LED) light set to backlight the LCD, a narrow gamut LED light set to backlight the LCD and a controller communicatively coupled to the LCD. The controller can switch the LCD between a wide gamut lighting mode, a narrow gamut lighting mode, and a high brightness lighting mode in response to changes in ambient light and content displayed on the LCD.