Abstract: A rollable display screen for use in electronic display systems includes a rollable screen that is mechanically coupled to a roller mechanism and has a plurality of pixel elements disposed thereon. The roller mechanism is configured as a stowing mechanism for the rollable screen, and may be further configured to deploy the rollable screen as a substantially planar viewing surface. The rollable display screen can be advantageously used for a durable and easily transported electronic display device since the rollable display screen is light-weight, durable, and compact.

Abstract: Techniques and display devices that provide a built-in Moire reduction structure in a display screen are disclosed. The built-in Moire reduction structure is configured to suppress spatial frequencies that are associated with the sub-pixel level periodicities in the light emitted by the colored sub-pixels of the display screen, and hence, reduce the Moire patterns that might otherwise be produced when images presented on the display screen are captured by a digital image capturing device having a periodic light-sensing structure. The built-in Moire reduction structure is a blur layer placed on the viewer side of the screen and separated by a spacer layer from the pixel layer of the display screen. The blurring power of the blur layer is controlled to substantially preserve the pixel-level resolution of the display screen.

Abstract: A multi-layer display screen capable of being tiled without a visible gap between tiled screens and methods of using said device are described herein. In one embodiment, a system includes a light generator configured to produce light and a multi-layer screen with a plurality of layers. The multi-layer screen can be configured to permit the light from the light generator to propagate therethrough. The plurality of layers can include an opaque region layer having a plurality of opaque regions and a first layer comprising one or more abutted layers disposed within a common plane, the abutted layers spaced apart by a gap, wherein the gap is coincident with the opaque region.

Abstract: A laser-based display device includes a plurality of ultraviolet lasers configured to excite a phosphor-containing display screen in order to produce visible light. The laser-based display device also includes a reference laser used for calibration operations. A control system within the laser-based display device causes the reference laser beam to scan across one or more calibration features, and adjusts optical components of the laser-based display device, including activation timing of the ultraviolet lasers, based on feedback patterns generated by the calibration features, to compensate for drift effects. The calibration features may be disposed off-screen or on-screen.

Abstract: Scanning beam systems based on a two-dimensional polygon scanner with different reflective polygon facets tilted at different tilt facet angles to use rotations of the polygon scanner to scan one or more optical beams both horizontally and vertically on a surface which can be a display screen or a printing surface.

Abstract: A 2-D scanning system uses a fast-rotating raster-polygon as a single scanning component to produce straight scan lines over a 2-D image surface. An approach angle of incident light beams to the raster-polygon is selected to minimize pin-cushion distortion of scan lines introduced by polygon scanning on the image surface, and a tilt angle of the rotational axis of the raster-polygon is selected to position said polygon-scanning distortion symmetrically on the image surface. In addition, scan optics are configured to generate a predetermined amount of barrel distortion of scan lines on the image surface to compensate for pin-cushion distortion introduced by polygon scanning.

Abstract: Scanning beam display systems that scan one servo beam and an excitation beam onto a screen that emits visible light under excitation of the light of the excitation beam and control optical alignment of the excitation beam based on positioning of the servo beam on the screen via a feedback control.

Abstract: Implementations described herein generally relate to scanning beam display systems and more specifically, to systems and methods for improved image alignment of such scanning beam display systems. The method comprises providing a display system comprising a display screen having a plurality of display screen region each with a corresponding light engine module having a servo laser beam and an excitation laser beam, scanning the servo laser beam of a light engine module in an outer scanning region outside of the light engine module's corresponding display screen region, detecting servo laser beam feedback light to measure an alignment error of the light engine module relative to the light engine module's corresponding display screen region, and adjusting alignment of the excitation laser beam based on the measured alignment error.

Abstract: A rollable display screen for use in electronic display systems includes a rollable screen that is mechanically coupled to a roller mechanism and has a plurality of pixel elements disposed thereon. The roller mechanism is configured as a stowing mechanism for the rollable screen, and may be further configured to deploy the rollable screen as a substantially planar viewing surface. The rollable display screen can be advantageously used for a durable and easily transported electronic display device since the rollable display screen is light-weight, durable, and compact.

Abstract: Scanning beam display systems that scan one servo beam and an excitation beam onto a screen that emits visible light under excitation of the light of the excitation beam and control optical alignment of the excitation beam based on positioning of the servo beam on the screen via a feedback control.

Abstract: Fluorescent screens and display systems and devices based on such screens using at least one excitation optical beam to excite one or more fluorescent materials on a screen which emit light to form images. The fluorescent materials may include phosphor materials and non-phosphor materials such as quantum dots. A screen may include a multi-layer dichroic layer.

Abstract: Fluorescent screens and display systems and devices based on such screens using at least one excitation optical beam to excite one or more fluorescent materials on a screen which emit light to form images. The fluorescent materials may include phosphor materials and non-phosphor materials such as quantum dots. A screen may include a multi-layer dichroic layer.

Abstract: Scanning beam systems based on a two-dimensional polygon scanner with different reflective polygon facets tilted at different tilt facet angles to use rotations of the polygon scanner to scan one or more optical beams both horizontally and vertically on a surface which can be a display screen or a printing surface.

Abstract: Scanning beam display systems that scan one servo beam and an excitation beam onto a screen that emits visible light under excitation of the light of the excitation beam and control optical alignment of the excitation beam based on positioning of the servo beam on the screen via a feedback control.

Abstract: An electronic display device provides closed-loop verification that specific content has been displayed by the display device. When desired digital image content is rendered as an image or video by the electronic display device, a confirmation signal is generated by one or more components of the display device to verify that the image content has been successfully displayed. The confirmation signal may include performance measurements of the one or more components of the display device and/or a signature output that is associated with a signature code embedded in the image content. The signature output uniquely identifies the digital image content.

Abstract: Scanning beam systems based on a two-dimensional polygon scanner with different reflective polygon facets tilted at different tilt facet angles to use rotations of the polygon scanner to scan one or more optical beams both horizontally and vertically on a surface which can be a display screen or a printing surface.

Abstract: Techniques and display systems that provide display systems suitable for various display applications, including display systems that provide a controlled climate in an enclosure of the system to protect the display components and display systems that produce high-contrast images for outdoor displays, large-format displays and other display applications.

Abstract: Scanning beam display systems that scan one servo beam and an excitation beam onto a screen that emits visible light under excitation of the light of the excitation beam and control optical alignment of the excitation beam based on positioning of the servo beam on the screen via a feedback control.

Abstract: Techniques and display devices that provide a composite display screen made up by placing multiple smaller constituent screens based on a light-emitting screen technology to minimize the gap between two adjacent constituent screens.

Abstract: Techniques and display devices that provide a built-in Moire reduction structure in a display screen are disclosed. The built-in Moire reduction structure is configured to suppress spatial frequencies that are associated with the sub-pixel level periodicities in the light emitted by the colored sub-pixels of the display screen, and hence, reduce the Moire patterns that might otherwise be produced when images presented on the display screen are captured by a digital image capturing device having a periodic light-sensing structure. The built-in Moire reduction structure is a blur layer placed on the viewer side of the screen and separated by a spacer layer from the pixel layer of the display screen. The blurring power of the blur layer is controlled to substantially preserve the pixel-level resolution of the display screen.