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: 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: 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: 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: 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 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.

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: The present disclosure is drawn to privacy films for electronic displays. In one example, a privacy film for an electronic display can include a first transparent electrode layer, a second transparent electrode layer, and a light-directing layer positioned between the first transparent electrode layer and the second transparent electrode layer. The light-directing layer can include multiple light-blocking barriers spaced apart across the light-directing layer as well as polymer-dispersed liquid crystal occupying spaces between the multiple light-blocking barriers.

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.

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.

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.

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.

Abstract: In example implementations, an apparatus is provided. The apparatus includes a movable light emitting diode (LED) base. A plurality of LED arrays is coupled to the movable LED base. The apparatus includes a grid that includes a plurality of walls. The grid is positioned such that each LED array of the plurality of LED arrays is adjacent to a wall of the plurality of walls.

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.

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.

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.

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.