Abstract: In example implementations, a display is provided. The display includes a collimated back light unit (BLU) comprising a light guide plate and a plurality of light emitting diodes (LEDs), a polymer dispersed liquid crystal (PDLC) layer formed over the collimated BLU, a thin film transistor (TFT) substrate, a liquid crystal layer formed over the TFT substrate, a color filter (CF) substrate, and a controller. The PDLC layer is to provide selective privacy areas on the display. The TFT substrate is to control emission of light from the plurality of LEDs. The CF substrate is to control a color of the light emitted from the plurality of LEDs. The controller is communicatively coupled to the plurality of LEDs and the POLO layer to activate a selected area of the PDLC layer to enable a privacy area on a corresponding area that is selected on the display.

Abstract: In an example implementation according to aspects of the present disclosure, a computing device includes a first member with a first display surface, and a second member rotatably connected to the first member, the second member including a second display surface. The computing device includes a sensor and a processor to receive readings from the sensor. Based on the sensor readings, the processor is to select either a privacy mode or a sharing mode for the first display surface, and either the privacy mode or the sharing mode for the second display surface.

Abstract: Example electronic devices including a display are disclosed. In an example, the display includes a backlight, and an image generator to form an image from light emitted from the backlight. In addition, the display includes a first privacy panel and a second privacy panel disposed between the backlight and the image generator. The first privacy panel includes a first set of parallel lines, and the second privacy panel includes a second set of parallel lines that are perpendicular to the first set of parallel lines. The first set of parallel lines is to actuate to selectively adjust a first viewing angle of the display in a first plane, and the second set of parallel lines is to actuate to selectively adjust a second viewing angle of the display in a second plane that is perpendicular to the first plane.

Abstract: A tiled light emitting diode (LED) display panel includes multiple flexible back plates arranged in tiles. Each flexible back plate has multiple through holes formed thereon. A pixel array is formed by multiple LEDs on the flexible back plates and collectively defines multiple pixels. Each pixel includes one LED and thin-film transistor (TFT) circuits disposed on a first side of a corresponding flexible back plate. A printed circuit board (PCB) is disposed at a second side of the flexible back plates. A third side of the PCB faces the second side of the flexible back plates and has multiple signal lines formed thereon. The LEDs and the TFT circuits of the pixels are electrically connected to the corresponding signal lines via multiple conductive structures formed in the through holes. A resistance per unit length of each flexible back plates is greater than a resistance per unit length of the PCB.

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.

Abstract: In one example, a display device can include a gate line break across a plurality of gate lines, a first source driver positioned on a first side of the gate line break, a first gate driver positioned on the first side of the gate line break, a second source driver positioned on a second side of the gate line break, and a second gate driver positioned on the second side of the gate line break.

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.

Abstract: An example display device with a multiple privacy mode of operation includes a micro lens cell having a first liquid crystal layer with a first set of liquid crystal molecules and a controllable optical effective refractive index, to transmit light through the micro lens cell. A pair of electrodes receive a voltage to change an orientation of the first set of liquid crystal molecules and the optical effective refractive index of the first liquid crystal layer. A micro lens array directs the light at an interface of the micro lens array and first liquid crystal layer. The micro lens array directs the light at different angles based on the voltage. A second liquid crystal layer changes a polarization of the light. A color filter controls a color of the light. A common electrode controls an orientation of a second set of liquid crystal molecules in the second liquid crystal layer.

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.

Abstract: In example implementations, a display is provided. The display includes a plurality of light emitting diodes (LEDs), a thin film transistor (TFT) substrate, a liquid crystal layer, a color filter (CF) substrate, and a controller. The TFT substrate is formed over the LEDs to control emission of light from the plurality of LEDs. The liquid crystal layer is formed over the TFT substrate. The CF substrate is formed over the liquid crystal layer to control a color of the light emitted from the plurality of LEDs. The controller is communicatively coupled to the plurality of LEDs to group subsets of LEDs of the plurality of LEDs into a plurality of local dimming zones, wherein the subsets of LEDs in each one of the plurality of local dimming zones changes over time.

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.

Abstract: In some examples, an organic light emitting transistor (OLET) comprises a substrate layer; a gate electrode disposed on the substrate layer; and a dielectric layer disposed on the gate electrode. The OLET further comprises a first organic semiconductor layer (OSL) disposed on the dielectric layer; a second OSL disposed on the first OSL; a third OSL disposed on the second OSL; a drain electrode disposed on the third OSL; a first source electrode partially disposed on both the first OSL and the third OSL; and a second source electrode partially disposed on both the first OSL and the third OSL, wherein a length of the first OSL is larger than lengths of both the second and third OSLs, and wherein a width of the first OSL is smaller than widths of both the second and third OSLs.

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.

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.

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.

Abstract: A pixel structure includes a data line, a first scan line, first and second transistors, first and second power lines, LED elements, a connection pattern, a first insulation layer, and a first conductive pattern. Each of the first transistor and the second transistor has a first end, a control end, and second end. Each LED element has a first electrode and a second electrode. The second power line is electrically coupled to the first electrodes. The connection pattern is electrically coupled between the second end of the first transistor and the control end of the second transistor. The first conductive pattern is disposed above the first insulation layer and electrically coupled between the second electrodes, the second electrodes are electrically coupled to the second end of the second transistor through the first conductive pattern, and the connection pattern and the first conductive pattern are overlapped in an orthogonal projection direction.

Abstract: A light emitting device including a base, a first electrode, a barrier structure layer, a light emitting layer and a second electrode is provided. The barrier structure layer includes a first barrier layer in contact with the first electrode, a second barrier layer and a third barrier layer. The first barrier layer, the second barrier layer and the third barrier layer stack sequentially. The materials of the first barrier layer and the third barrier layer include a dielectric material. The material of the second barrier layer includes a metal material. A boundary between the third barrier layer and the second barrier layer keeps a vertical distance from the first electrode. The light emitting structure layer is disposed between the first electrode and the second electrode and surrounded by the barrier structure layer. The thickness of the light emitting structure layer is not greater than the vertical distance.

Abstract: In one example, a display device may include a liquid crystal panel and a direct type backlight unit having a light emitting diode (LED) package disposed behind the liquid crystal panel. The LED package may include a plurality of LEDs. The plurality of LEDs may have a first orientation towards the liquid crystal panel to provide a first viewing angle. Further, the display device may include a control unit to rotate the LED package to allow the plurality of LEDs to have a second orientation towards the liquid crystal panel to provide a second viewing angle. The second viewing angle may be narrower than the first viewing angle.

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.

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.