公开(公告)号：US20210149460A1

公开(公告)日：2021-05-20

申请号：US16982654

申请日：2018-07-31

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

Inventor： Hsing-Hung Hsieh ,  Alan Man Pan Tam ,  Ann Alejandro Villegas

IPC: G06F1/18 ,  G06F1/16

Abstract: Example displays having transparent areas for cameras are disclosed. An example display has a first source line including a first portion composed of a first material and a second portion composed of a second material different than the first material. A first gate line includes a first portion composed of a third material and a second portion composed of a fourth material, the fourth material being different than the third material. A second gate line includes a first portion composed of the third material and a second portion composed of the fourth material. The first portion of the source line, the first portion of the first gate line, and the first portion of the second gate line define a non-transparent area of the display. The second portion of the source line, the second portion of the first gate line, and second portion of the second gate line define a transparent area of a display.

公开(公告)号：US20250044847A1

公开(公告)日：2025-02-06

申请号：US18923247

申请日：2024-10-22

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：US20220393484A1

公开(公告)日：2022-12-08

申请号：US17339504

申请日：2021-06-04

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

Inventor： Fangyong Dai ,  Ann Alejandro Villegas ,  Qijun Chen ,  Gabriel Hector Valencia

IPC: H02J7/00

Abstract: Apparatus, systems, articles of manufacture, and methods to provide battery cell rebalancing are disclosed. An example apparatus includes a first battery cell having a first size. The apparatus further includes a second battery cell having a second size different than the first size. The apparatus further includes a first variable resistor couplable to the first battery cell. The apparatus further includes a second variable resistor couplable to the second battery cell. The apparatus further includes a sensor to determine a first internal resistance of the first battery cell, and a second internal resistance of the second battery cell. The apparatus further includes an integrated circuit to adjust a first resistance of the first variable resistor and a second resistance of the second variable resistor based on the first internal resistance and the second internal resistance.

公开(公告)号：US20220351685A1

公开(公告)日：2022-11-03

申请号：US17762106

申请日：2019-10-21

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

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

IPC: G09G3/3258 ,  G09G3/00

Abstract: A control circuit of a pixel-addressable display corrects a brightness of a pixel element of a pixel circuit of the display based on a curvature of a curvable area of the display. The control circuit selectively applies data line voltages to the pixel circuit. The pixel circuit applies a driving voltage to the pixel element based on the data line voltages.

公开(公告)号：US20220115466A1

公开(公告)日：2022-04-14

申请号：US17419311

申请日：2019-06-27

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

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

IPC: H01L27/32 ,  G02F1/13 ,  G02F1/1343

Abstract: Example privacy cells and electronic displays including the privacy cells are disclosed. In an example, the electronic display includes an organic light emitting diode (OLED), an anode on a first side of the OLED, and a cathode on a second side of the OLED. In addition, the electronic display includes a privacy cell coupled to the cathode opposite the OLED. The privacy cell includes a cholesteric liquid crystal (CLC) layer on the cathode, and an electrode on the CLC layer opposite the cathode. The electrode and the cathode are to induce a voltage differential across the CLC layer to adjust a viewing angle of the electronic display.

公开(公告)号：US20210356778A1

公开(公告)日：2021-11-18

申请号：US17043321

申请日：2018-07-02

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

Inventor： Hsing-Hung Hsieh ,  Kuan-Ting Wu ,  Ann Alejandro Villegas

IPC: G02F1/13 ,  G02F1/1334 ,  G02F1/1339

Abstract: In one example in accordance with the present disclosure, a screen privacy device is described. The screen privacy device includes a substrate with channels having angled walls. A polymer-dispersed liquid crystal (PDLC) compound within the channels selectively alters a viewing angle of an underlying display screen. The screen privacy device also includes electrodes disposed on opposite wails of each of the channels to selectively apply a voltage potential across the PDLC compound within a corresponding channel.

公开(公告)号：US20210280656A1

公开(公告)日：2021-09-09

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：US20210240021A1

公开(公告)日：2021-08-05

申请号：US17048728

申请日：2018-10-02

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

Inventor： Hsing-Hung Hsieh ,  Wan Ching Lee ,  Ann Alejandro Villegas

IPC: G02F1/13 ,  G02F1/1334 ,  G02F1/1335

Abstract: A privacy display may include a collimated backlight (CBL) layer; a polymer-dispersed liquid crystal (PDLC) layer; and a liquid crystal display (LCD) layer; wherein the PDLC layer is, upon selective application of a voltage, operates in a sharing mode and a privacy mode, the sharing mode being made to operate at a first luminance mode and a second luminance mode; wherein, at the second luminance mode, the voltage is not applied to the PDLC layer and, at the first luminance mode, the voltage is applied to the PDLC; and wherein a minimal luminance of the second luminance mode is 1.5 times or greater than a maximum luminance of the first luminance mode.

公开(公告)号：US11036454B2

公开(公告)日：2021-06-15

申请号：US16964382

申请日：2018-03-22

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

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

IPC: G06F3/14 ,  G06F1/16 ,  G06F1/3218 ,  G06F1/3234 ,  G09G3/3208

Abstract: Example implementations relate to display control. In some examples, a computing device may include a first processing resource, a second processing resource, a first display controlled by the first processing resource, and a second display storable in a first position within a pocket of the first display and controlled by the second processing resource. The second processing resource may provide notification data content to the second display when the second display is stored within the first position and the first processing resource of the computing device is in a non-active mode. The second processing resource may share control of the second display with the first processing resource when the second display is in a second position extended from the first display and while the computing device is in an active mode.

公开(公告)号：US11009728B2

公开(公告)日：2021-05-18

申请号：US16979298

申请日：2018-07-02

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

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

IPC: G02F1/13 ,  G02F1/133 ,  G02F1/1334

Abstract: In one example in accordance with the present disclosure, a screen privacy device is described. The screen privacy device includes first bands of a polymer-dispersed liquid crystal (PDLC) compound. These first bands have first light-scattering properties. The screen privacy device also includes second bands of the PDLC compound, the second bands having second light-scattering properties. In this example, the second light-scattering properties are different than the first light-scattering properties and the first bands and the second bands alternate along a dimension of the screen privacy device.