公开(公告)号：US20220146870A1

公开(公告)日：2022-05-12

申请号：US17418879

申请日：2019-07-29

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

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

IPC: G02F1/1334 ,  G02F1/1333 ,  G02F1/1335

Abstract: An example of an apparatus is provided. The apparatus includes a display portion and a camera. In addition, the apparatus includes a thin film transistor substrate extending over the display portion and the camera. Furthermore, the apparatus includes an image generation layer disposed under the thin film transistor substrate within the display portion. Also, the apparatus includes a polymer dispersed liquid crystal disposed between the thin film transistor substrate and the camera. The polymer dispersed liquid crystal is to be switched between an opaque state and a clear state. The opaque state is to block the camera from receiving imaging light. The clear state allows light to pass through the polymer dispersed liquid crystal.

公开(公告)号：US20210391476A1

公开(公告)日：2021-12-16

申请号：US17052551

申请日：2019-03-06

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

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

IPC: H01L29/786 ,  H01L27/105

Abstract: Semiconductor materials can include from about 11 at % to about 50 at % of a carrier mobility contributor selected from a period 6 metal or a period 5 metal, wherein the period 6 metal is lead and the period 5 metal is indium, tin, cadmium, or a combination thereof, and wherein the carrier mobility contributor is not a combination of the period 6 metal and the period 5 metal; from about 0.6 at % to about 25 at % of an amorphous phase stabilizer, wherein the amorphous phase stabilizer is selected from indium, tin, cadmium, zinc, gallium, or a combination thereof when the carrier mobility contributor is the period 6 metal, or the amorphous phase stabilizer is selected from zinc, gallium, or a combination thereof when the carrier mobility contributor is the period 5 metal; from about 0.3 at % to about 18 at % of a semiconductivity controller including an element having a standard electrode potential from about −0.8 to about −3.05; and from about 45 at % to about 67 at % oxygen.

公开(公告)号：US12032261B2

公开(公告)日：2024-07-09

申请号：US17046035

申请日：2018-09-12

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

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

IPC: G02F1/167 ,  G02F1/13357 ,  G02F1/1677 ,  G09G3/34

CPC classification number: G02F1/167 ,  G02F1/1677 ,  G09G3/344 ,  G02F1/133606

Abstract: The present disclosure is drawn to privacy films for electronic displays. In one example, a privacy film for an electronic display can include a louver film. The louver film can include: a plurality of high refractive index slats with a refractive index of about 1.5 to about 3 and having a trapezoidal cross section narrowing toward a viewer side of the louver film; and a plurality of low refractive index slats between the high refractive index slats, having a refractive index less than the refractive index of the high refractive index slats by about 0.1 to about 2. An electrophoretic ink can be optically associated with the low refractive index slats, including opaque particles that are electrically mobile to cause modification of light transmission therethrough. A first and second transparent electrode film can be on a viewer side and a rear side of the electrophoretic ink, respectively.

公开(公告)号：US11846845B2

公开(公告)日：2023-12-19

申请号：US17418879

申请日：2019-07-29

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

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

IPC: G02F1/1334 ,  G02F1/1333 ,  G02F1/1335

CPC classification number: G02F1/1334 ,  G02F1/13338 ,  G02F1/133305 ,  G02F1/133528

Abstract: An example of an apparatus is provided. The apparatus includes a display portion and a camera. In addition, the apparatus includes a thin film transistor substrate extending over the display portion and the camera. Furthermore, the apparatus includes an image generation layer disposed under the thin film transistor substrate within the display portion. Also, the apparatus includes a polymer dispersed liquid crystal disposed between the thin film transistor substrate and the camera. The polymer dispersed liquid crystal is to be switched between an opaque state and a clear state. The opaque state is to block the camera from receiving imaging light. The clear state allows light to pass through the polymer dispersed liquid crystal.

公开(公告)号：US11763748B2

公开(公告)日：2023-09-19

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 ,  G09F9/30 ,  G06F1/16 ,  G09G3/3233

CPC classification number: G09G3/3258 ,  G09G3/03 ,  G06F1/1652 ,  G09F9/301 ,  G09G3/3233 ,  G09G2300/0452 ,  G09G2300/0809 ,  G09G2310/0262 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0626

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：US20210191223A1

公开(公告)日：2021-06-24

申请号：US17046035

申请日：2018-09-12

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

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

IPC: G02F1/167 ,  G02F1/1677 ,  G09G3/34

Abstract: The present disclosure is drawn to privacy films for electronic displays. In one example, a privacy film for an electronic display can include a louver film. The louver film can include: a plurality of high refractive index slats with a refractive index of about 1.5 to about 3 and having a trapezoidal cross section narrowing toward a viewer side of the louver film; and a plurality of low refractive index slats between the high refractive index slats, having a refractive index less than the refractive index of the high refractive index slats by about 0.1 to about 2. An electrophoretic ink can be optically associated with the low refractive index slats, including opaque particles that are electrically mobile to cause modification of light transmission therethrough. A first and second transparent electrode film can be on a viewer side and a rear side of the electrophoretic ink, respectively.

公开(公告)号：US11308883B2

公开(公告)日：2022-04-19

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: G09G3/32 ,  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：US20220108662A1

公开(公告)日：2022-04-07

申请号：US17418804

申请日：2019-06-03

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

Inventor： Hsing-Hung Hsieh ,  Thong Thai ,  Ann Alejandro Villegas

IPC: G09G3/34 ,  G02F1/13357

Abstract: An example device for providing display modes can include a display that includes a plurality of light sources and a collimated backlight, a driver coupled to a switch that is coupled to the plurality of light sources with a first electrical connection for a first mode and a second electrical connection for a second mode, wherein the first electrical connection provides a first amperage to the plurality of light sources and the second electrical connection provides a second amperage to the plurality of light sources, and a computing device comprising instructions executable by a processing resource to: initiate the first mode by providing an instruction to the switch to activate the first electrical connection, and initiate the second mode by providing an instruction to the switch to activate the second electrical connection.

公开(公告)号：US20220100912A1

公开(公告)日：2022-03-31

申请号：US17297274

申请日：2019-06-19

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

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

IPC: G06F21/84 ,  G09G3/32

Abstract: In example implementations, a display is provided. The display includes a piezo electric layer coupled to a power source, a plurality of light emitting diodes arranged on the piezo electric layer, an aperture layer, a thin film transistor layer, a liquid crystal layer formed over the thin film transistor layer, and a color filter layer. The aperture layer is located above the plurality of light emitting diodes such that light emitted from the plurality of light emitting diodes travels through respective apertures in the aperture layer. The color filter layer is formed over the liquid crystal layer to control a color of the light emitted from the plurality of light emitting diodes.

公开(公告)号：US11282966B2

公开(公告)日：2022-03-22

申请号：US17052551

申请日：2019-03-06

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

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

IPC: H01L27/105 ,  H01L29/786

Abstract: Semiconductor materials can include from about 11 at % to about 50 at % of a carrier mobility contributor selected from a period 6 metal or a period 5 metal, wherein the period 6 metal is lead and the period 5 metal is indium, tin, cadmium, or a combination thereof, and wherein the carrier mobility contributor is not a combination of the period 6 metal and the period 5 metal; from about 0.6 at % to about 25 at % of an amorphous phase stabilizer, wherein the amorphous phase stabilizer is selected from indium, tin, cadmium, zinc, gallium, or a combination thereof when the carrier mobility contributor is the period 6 metal, or the amorphous phase stabilizer is selected from zinc, gallium, or a combination thereof when the carrier mobility contributor is the period 5 metal; from about 0.3 at % to about 18 at % of a semiconductivity controller including an element having a standard electrode potential from about −0.8 to about −3.05; and from about 45 at % to about 67 at % oxygen.