Abstract: A system and method for monitoring the status of a pixelated display defines one or more pixel locations or clusters of pixels to be dithered. A monitor determines if the specified pixels or clusters of pixels demonstrate dithering. Detection of the expected dithering indicates a functional display while failure to detect the dithering indicates a failed display. Brightness levels are monitored to detect a failure in brightness leveling. Brightness is monitored at the same locations.

Abstract: A touchscreen device utilizes digital scan to resolve a touch location with high precision. The touchscreen device includes touchells of about 3.175 mm by 3.175 mm (0.125 inches by 0.125 inches). An integrated circuit detects contacts in the touchells that resolve to touches on the touchscreen, and communicates those touches to a micro-controller via a serial bus. Silver epoxy interconnects for the tracks are reduced or eliminated. Multiple touchscreens having distinct touchell networks may be disposed to create a larger touchscreen area. Similarly, a single touchscreen may be divided quadrants, each with a distinct touchell network.

Abstract: A touchscreen device utilizes digital scan to resolve a touch location with high precision. The touchscreen device includes touchells of about 3.175 mm by 3.175 mm (0.125 inches by 0.125 inches). An integrated circuit detects contacts in the touchells that resolve to touches on the touchscreen, and communicates those touches to a micro-controller via a serial bus. Silver epoxy interconnects for the tracks are reduced or eliminated. Multiple touchscreens having distinct touchell networks may be disposed to create a larger touchscreen area. Similarly, a single touchscreen may be divided quadrants, each with a distinct touchell network.

Abstract: In a display with subpixel LEDs, each pixel includes two subpixel LEDs controlled via a shared control circuit and switching element. Switching element logic allows one set of brightness control transistors to alternatively control two subpixels. The driving and control elements of a display backplane are organized into pixels units of four driving elements and three control elements. Each pixel may comprise two green subpixels controlled via the switching element. Alternatively, each pixel may comprise a white subpixel that only illuminates when the colored pixels are off; the green and white subpixels are controlled via the switching element.

Abstract: A touchscreen device utilizes digital scan to resolve a touch location with high precision. The touchscreen device includes touchells of about 3.175 mm by 3.175 mm (0.125 inches by 0.125 inches). An integrated circuit detects contacts in the touchells that resolve to touches on the touchscreen, and communicates those touches to a micro-controller via a serial bus. Silver epoxy interconnects for the tracks are reduced or eliminated. Multiple touchscreens having distinct touchell networks may be disposed to create a larger touchscreen area. Similarly, a single touchscreen may be divided quadrants, each with a distinct touchell network.

Abstract: A system may include a display element. The display element may include pixel groups. Each of the pixel groups may include a first set of sub-pixels and a second set of sub-pixels. The first set of sub-pixels may include: a first sub-pixel; a second sub-pixel; and a third sub-pixel. The second set of sub-pixels may include: a fourth sub-pixel; a fifth sub-pixel; and a sixth sub-pixel. Each of the fourth sub-pixel, the fifth sub-pixel, and the sixth sub-pixel may have a maximum brightness that is dimmer than a maximum brightness of each of the first sub-pixel, the second sub-pixel, and the third sub-pixel. Some or all sub-pixels of one of the first set of sub-pixels or the second set of sub-pixels may be driven while all sub-pixels of the other of the first set of sub-pixels or the second set of sub-pixels are undriven.

Abstract: A multi-display-region display device can include a plurality of pixels, a first display region including a first subset of the plurality of pixels and a second display region including a second subset of the plurality of pixels. The second display region and the first display region can be adjacent to each other along a respective staggered boundary portion. The display device can include a first controller to control the first display region via a first plurality of control lines communicatively coupling the first controller to the first subset of pixels. The display device can include a second controller to control the second display region via a second plurality of control lines communicatively coupling the second controller to the second subset of pixels.

Abstract: A display includes a plurality of light emissive panels. Each light emissive panel is flexible, has a light emissive surface with a plurality of pixels emitting light, has side edges, and is adjacent to other light emissive panels. The light emissive panels are in a flexed arrangement such that a total light emissive surface includes individual of the light emissive surfaces having a substantially full sphere surface or partial sphere surface shape.

Abstract: A system and method for monitoring the status of a pixelated display defines one or more pixel locations or clusters of pixels to be dithered. A monitor determines if the specified pixels or clusters of pixels demonstrate dithering. Detection of the expected dithering indicates a functional display while failure to detect the dithering indicates a failed display. Brightness levels are monitored to detect a failure in brightness leveling. Brightness is monitored at the same locations.

Abstract: A system may include a display element. The display element may include pixel groups. Each of the pixel groups may include a first set of sub-pixels and a second set of sub-pixels. The first set of sub-pixels may include: a first sub-pixel; a second sub-pixel; and a third sub-pixel. The second set of sub-pixels may include: a fourth sub-pixel; a fifth sub-pixel; and a sixth sub-pixel. Each of the fourth sub-pixel, the fifth sub-pixel, and the sixth sub-pixel may have a maximum brightness that is dimmer than a maximum brightness of each of the first sub-pixel, the second sub-pixel, and the third sub-pixel. Some or all sub-pixels of one of the first set of sub-pixels or the second set of sub-pixels may be driven while all sub-pixels of the other of the first set of sub-pixels or the second set of sub-pixels are undriven.

Abstract: In a display with subpixel LEDs, each pixel includes two subpixel LEDs controlled via a shared control circuit and switching element. Switching element logic allows one set of brightness control transistors to alternatively control two subpixels. The driving and control elements of a display backplane are organized into pixels units of four driving elements and three control elements. Each pixel may comprise two green subpixels controlled via the switching element. Alternatively, each pixel may comprise a white subpixel that only illuminates when the colored pixels are off; the green and white subpixels are controlled via the switching element.

Abstract: A passively and nonintrusively monitoring liquid crystal display (LCD) system includes a graphics controller configured to generate alternating sets of drive instructions and forward the drive instructions for execution by drive electronics to activate display elements of a display surface. An initial set of drive instructions corresponding to a first frame causes the drive electronics to draw an initial pattern such as a solid red fill to selected regions of the display surface. An alternating set of drive instructions causes the drive electronics to draw a contrasting pattern such as a solid cyan fill to the selected regions. Given a sufficiently high refresh rate between the initial and alternating sets, a human operator perceives only the integration of the two patterns unless the display system is in a stuck or frozen state, when the frozen initial and contrasting patterns clearly and quickly indicate the stuck/frozen failure condition.

Abstract: Fail-operational display devices and methods for controlling such fail-operational display devices are disclosed. More specifically, emissive displays having independently addressable (controllable) light emitting elements fitted with redundant control circuits may be utilized. In the event of a failure, one set of redundant control circuits may be disabled while another set of redundant control circuits may be enabled to keep the display device fail-operational.

Abstract: A passively and nonintrusively monitoring liquid crystal display (LCD) system includes a graphics controller configured to generate alternating sets of drive instructions and forward the drive instructions for execution by drive electronics to activate display elements of a display surface. An initial set of drive instructions corresponding to a first frame causes the drive electronics to draw an initial pattern such as a solid red fill to selected regions of the display surface. An alternating set of drive instructions causes the drive electronics to draw a contrasting pattern such as a solid cyan fill to the selected regions. Given a sufficiently high refresh rate between the initial and alternating sets, a human operator perceives only the integration of the two patterns unless the display system is in a stuck or frozen state, when the frozen initial and contrasting patterns clearly and quickly indicate the stuck/frozen failure condition.

Abstract: Touch sensors with multiple electrically isolated touch regions are disclosed. A touch sensor may include a first substrate and a second substrate. The first substrate may include two or more resistive layers covering two or more separate areas. The second substrate may include a continuous resistive layer that partially overlaps with each of the two resistive layers of the first substrate. The touch sensor may also include a first controller electrically connected to the continuous resistive layer of the second substrate and electrically connected to a first one of the two resistive layers of the first substrate, forming a first independently operable region. The touch sensor may further include a second controller electrically connected to the continuous resistive layer of the second substrate and electrically connected to a second one of the two resistive layers of the first substrate, forming a second independently operable region.

Abstract: Redundant display systems and methods for providing display redundancy are disclosed. A display system may include a primary display and at least one secondary display. The primary display and the at least one secondary display may be stacked in series relative to a line of sight of a user, and the at least one secondary display may be configured to serve as a backup to the primary display upon a failure of the primary display.

Abstract: Alternating touchscreen conductors in each layer of a touchscreen display are connected to separate touchscreen controllers. Each controller completely and separately resolves a location anywhere on the display so that a failure of either controller, or the failure of conductors connected to either controller, do not degrade touchscreen usability. Conductors in separate layers, connected to separate controllers may be isolated via insulators to prevent undesirable shorts. Conductors are shaped to minimize the area covered by insulators and maximize the area of useful conductor overlap.

Abstract: Alternating touchscreen conductors in each layer of a touchscreen display are connected to separate touchscreen controllers. Each controller completely and separately resolves a location anywhere on the display so that a failure of either controller, or the failure of conductors connected to either controller, do not degrade touchscreen usability. Conductors in separate layers, connected to separate controllers may be isolated via insulators to prevent undesirable shorts. Conductors are shaped to minimize the area covered by insulators and maximize the area of useful conductor overlap.

Abstract: Fail-operational display devices and methods for controlling such fail-operational display devices are disclosed. More specifically, emissive displays having independently addressable (controllable) light emitting elements fitted with redundant control circuits may be utilized. In the event of a failure, one set of redundant control circuits may be disabled while another set of redundant control circuits may be enabled to keep the display device fail-operational.

Abstract: Redundant display systems and methods for providing display redundancy are disclosed. A display system may include a primary display and at least one secondary display. The primary display and the at least one secondary display may be stacked in series relative to a line of sight of a user, and the at least one secondary display may be configured to serve as a backup to the primary display upon a failure of the primary display.