Abstract: A driver circuit for driving a matrix of N×M pixels of a light emitting module. Each pixel is composed of at least three types of light emitting elements. The light emitting elements are driven by a modulation control signal. The driver circuit is embedded in a TFT layer. It is configured to cooperate with N multiplexers provided in an external driver circuit, each multiplexer being configured to drive one line of M pixels. It is also configured to cooperate with one external current source per type of light emitting element, each external current source being mirrored M times on the matrix of the driver circuit and being arranged in series with a signal switch for generating the control signal provided for each of the M columns.

Abstract: A light emitting module including a first surface having a plurality of light emitting elements, a second surface configured to receive driving signals and to transfer these signals to the light emitting elements of the first surface. The second surface includes a plurality of optical transmitters, in which the optical transmitters are each associated to an associated optical receiver arranged on the first surface, the optical transmitter and the associated opposing optical receiver being separated by an optical medium, such that an optical signal including driving signals transmitted by the optical transmitter is received by the opposing optical receiver, each optical receiver being connected to at least one light emitting element and is configured to transform the optical signal into an electrical signal configured to drive the at least one light emitting element to generate an image on the display.

Abstract: A light emitting module for a light emitting display, including a first backplane and a third backplane arranged in a stackup. The first backplane includes a thin film transistor (TFT) layer deposited on a first substrate, the TFT layer further including a plurality of light emitting elements, associated contact pads and conducting tracks. The third backplane is provided on top of the light emitting elements, includes cavities at the locations of the light emitting elements and includes at least a ground layer and a power layer. The upper and lower layers of the third backplane are provided by alternatively the ground layer and the power layer for contacting the light emitting elements.

Abstract: A current control circuit for LED or OLED sub-pixels or pixels of an active matrix display is able to store bits or a bit of a control signal used to drive a pixel or sub-pixel, in a memory associated with each pixel or sub-pixel. The control circuit elements can be made compatible with thin-film processing such as to produce thin-film transistors.

Abstract: A display panel (65) and a method for manufacturing a display panel (65) that includes a front side and a back side, the display panel (65) including a substrate having a plurality of electrical components provided on a front side of the substrate and integrated circuits connected to the plurality of electrical components, the integrated circuits being embedded in the substrate. A plurality of edge contacts (54, 62) is also provided along edges of the substrate, where the plurality of edge contacts (54, 62) is electrically connected with the integrated circuits. An electrically conductive layer (51, 61) covers at least a part of the front side of the substrate and surrounds the plurality of electrical components, where the electrically conductive layer (51, 61) does not physically contact the embedded integrated circuits and provides EMI shielding to different components of the display panel (65).

Abstract: A current control circuit for LED or OLED sub-pixels or pixels of an active matrix display is able to store bits or a bit of a control signal used to drive a pixel or sub-pixel, in a memory associated with each pixel or sub-pixel. The control circuit elements can be made compatible with thin-film processing such as to produce thin-film transistors.

Abstract: A method for driving a projection system and a projection system including a phase modulator and at least one amplitude modulator. The phase modulator is configured to generate a highlight image incident on the amplitude modulator, the projector system further includes at least one image sensor configured to receive at least a portion of an illumination pattern substantially equivalent to the illumination pattern incident on the amplitude modulator, and the image sensor is being used to provide feedback to the controller of the projection system to improve the highlights projected by the projection system.

Abstract: A method for driving a projection system and a projection system including a phase modulator and at least one amplitude modulator. The phase modulator is configured to generate a highlight image incident on the amplitude modulator, the projector system further includes at least one image sensor configured to receive at least a portion of an illumination pattern substantially equivalent to the illumination pattern incident on the amplitude modulator, and the image sensor is being used to provide feedback to the controller of the projection system to improve the highlights projected by the projection system.

Abstract: A matrix circuit substrate, having a substrate body, having a first surface and a second surface which are opposite each other, and at least one sidewall located between the first surface and the second surface, the sidewall having at least one recess; multiple electrodes, disposed in a crisscross arrangement on the first surface; and at least one first conductive material, disposed in the recess to correspond to at least one of the electrodes, and electrically connected to the electrode. Additionally, a display apparatus having such substrate, and to a method for manufacturing such substrate.

Abstract: A matrix circuit substrate, having a substrate body, having a first surface and a second surface which are opposite each other, and at least one sidewall located between the first surface and the second surface, the sidewall having at least one recess; multiple electrodes, disposed in a crisscross arrangement on the first surface; and at least one first conductive material, disposed in the recess to correspond to at least one of the electrodes, and electrically connected to the electrode. Additionally, a display apparatus having such substrate, and to a method for manufacturing such substrate.

Abstract: A matrix circuit substrate, having: a substrate body, having a first surface and a second surface which are opposite each other, and at least one sidewall located between the first surface and the second surface, the sidewall having at least one recess; multiple electrodes, disposed in a crisscross arrangement on the first surface; and at least one first conductive material, disposed in the recess to correspond to at least one of the electrodes, and electrically connected to the electrode. Additionally, a display apparatus having such substrate, and to a method for manufacturing such substrate.

Abstract: A filter, having a first filter material and second filter material, the first and second filter materials having different light attenuation properties and being in mutual contact along an interface surface, a cross-section of which has a curved line. Additionally, a method for preparing a filter, by: combining a first surface and an element to form a moulding cavity, delimited by the surface and by a moulding surface of the element; inserting a first material in liquid state; allowing the first material to solidify; removing the element to form a second moulding cavity, delimited by a second part of the surface and by the solidified first material; and inserting a second material in the second moulding cavity.

Abstract: A method and apparatus is described for producing high brightness, e.g. multicolor light, whereby a region of a wavelength conversion element and a light source producing excitation light are moved relative to each other so that said region is exposed to the excitation light at different times and in a progressive movement that scans across a part of the entire surface of the wavelength conversion element. The wavelength conversion element can be cooled by air or with a liquid.

Abstract: A matrix circuit substrate, having: a substrate body, having a first surface and a second surface which are opposite each other, and at least one sidewall located between the first surface and the second surface, the sidewall having at least one recess; multiple electrodes, disposed in a crisscross arrangement on the first surface; and at least one first conductive material, disposed in the recess to correspond to at least one of the electrodes, and electrically connected to the electrode. Additionally, a display apparatus having such substrate, and to a method for manufacturing such substrate.

Abstract: A filter, having a first filter material and second filter material, the first and second filter materials having different light attenuation properties and being in mutual contact along an interface surface, a cross-section of which has a curved line. Additionally, a method for preparing a filter, by: combining a first surface and an element to form a moulding cavity, delimited by the surface and by a moulding surface of the element; inserting a first material in liquid state; allowing the first material to solidify; removing the element to form a second moulding cavity, delimited by a second part of the surface and by the solidified first material; and inserting a second material in the second moulding cavity.

Abstract: A display system, including a display device having an image forming device and an electronic driving system for driving the image forming device; a light source to illuminate a representative part of the display device; and an optical sensor unit having an optical aperture and at least one photo-sensor arranged to make optical measurements from the light reflected by the representative part and to generate optical measurement signals. The light source and the optical sensor unit are on one side of the display device. The light source and the optical sensor unit are integrated with the display device. Additionally, a method of producing a display system, a method for calibrating the display device, and a display device having a flexible second substrate.

Abstract: The invention pertains to a projector comprising an optical engine, a projection lens, a means for light deviation, and an afocal lens system, wherein the projector has a total throw ratio between 0.7 and 0.8. Such a projector can be used to build a very compact and cost-effective back-projection system. The invention also pertains to a projection assembly comprising such a projector, followed by a means for light gradation and a front-surface mirror. The invention also pertains to a display system comprising at least one such projection and a display screen.

Abstract: A method and apparatus is described for producing high brightness, e.g. multicolor light, whereby a region of a wavelength conversion element and a light source producing excitation light are moved relative to each other so that said region is exposed to the excitation light at different times and in a progressive movement that scans across a part of the entire surface of the wavelength conversion element. The wavelength conversion element can be cooled by air or with a liquid.

Abstract: A method and system are described for adjusting displaying of images to be displayed on a display system. The method is suitable for display systems comprising at least one hardware feature (f1, f2, f3) influencing the display uniformity of the displaying of images, such as e.g. a defect pixel, seams, variations in positions of hardware components, etc. The method comprises obtaining pixelated image information to be displayed on a display system (100), and adjusting the displaying thereof by applying a distributed variation correction signal to the displaying of the pixelated image information. Such a distributed variation correction signal thereby takes into account the at least one hardware feature (f1, f2, f3) of said display system (100) so as to influence the perception of the display uniformity.

Abstract: The present invention provides a display board (30) comprising an array of light emitting elements (31), a driving means (32) for driving the light emitting elements (31) with image data, and an aging determination means (33). The aging determination means (33) comprises one or more light emitting elements for emitting light representative of the light emitted by the light emitting elements (31) of the display board (30), and at least one reference light emitting element (35) which, during use of the display board (30) is not driven. At the time of an intermediate calibration, the at least one reference light emitting element (35) is driven with calibration data and the light emitted by the reference light emitting element (35) is measured, as well as light representative of the light emitted by the light emitting elements.