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    PRIVACY DISPLAYS WITH PIEZO ELECTRIC LAYERS
    152.
    发明申请
    PRIVACY DISPLAYS WITH PIEZO ELECTRIC LAYERS 有权

    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.

    Semiconductor materials
    153.
    发明授权
    Semiconductor materials 有权

    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.

    Light guide plates with liquid crystal molecules
    154.
    发明授权
    Light guide plates with liquid crystal molecules 有权

    公开(公告)号：US11262494B2

    公开(公告)日：2022-03-01

    申请号：US17048626

    申请日：2018-11-02

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

    Inventor： Super Liao ,  Hsing-Hung Hsieh ,  Kuan-Ting Wu

    IPC: G02B6/00 ,  F21V8/00 ,  G02F1/133 ,  G02F1/1343

    Abstract: An example display device includes a display panel to display an image; a backlight unit to provide light to the display panel, the backlight unit including a light emitting unit to emit the light; a light guide plate to transmit the light emitted from the light emitting unit; a pair of electrodes adjacent to the light guide plate; and a polymer layer including liquid crystal molecules within the light guide plate. The liquid crystal molecules are to change orientation upon being introduced to an electric field created by the pair of electrodes to change an opacity of the light guide plate. The display device includes at least one film to collimate and direct light from the backlight unit to the display panel; and a processor to switch voltage being applied on/off to the pair of electrodes.

    Display screens
    156.
    发明授权
    Display screens 有权

    公开(公告)号：US11164510B2

    公开(公告)日：2021-11-02

    申请号：US16603387

    申请日：2017-04-14

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

    Inventor： Wei Kuang Chu ,  Kuan-Ting Wu ,  Chi-Hao Chang

    IPC: G09G3/32 ,  H01L25/075

    Abstract: The present subject matter relates to display screens. In an example, a display screen includes a first set of pixels, where micro-LEDs of the first set of pixels are to emit light in a first direction from the display screen, and a second set of pixels, where micro-LEDs of the second set of pixels are to emit light in a second direction from the display screen. The second direction is different from the first direction.

    LIGHT GUIDE PLATES
    158.
    发明申请
    LIGHT GUIDE PLATES 有权

    公开(公告)号：US20210263211A1

    公开(公告)日：2021-08-26

    申请号：US17052279

    申请日：2018-11-14

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

    Inventor： Kuan-Ting Wu ,  Super Liao ,  Hsing-Hung Hsieh ,  Stephen Rudisill ,  Alexey Kabalnov

    IPC: F21V8/00 ,  B29C64/124

    Abstract: The present disclosure relates to light guide plates and methods for three-dimensional printing of light guide plates. In some examples, the method for 3D printing a light guide plate comprises: forming a plate body by depositing a layer of transparent build material on a build platform; based on a 3D object model of the plate body, inkjet printing fusing agent onto at least a portion of the layer of the transparent build material; and irradiating the fusing agent to heat the transparent build material and at least partially bind the portion of the transparent build material. In some examples, light scattering features are formed on the plate body by depositing a layer of transparent build material on the plate body; based on a 3D object model of light scattering features, inkjet printing fusing agent and scattering particles onto selected portions of the layer of transparent build material; and irradiating the fusing agent to heat the transparent build material and at least partially bind the portion of the transparent build material.

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