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 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 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 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.

Abstract: The present invention relates to a light emitting device assembly. Such a LED assembly comprises a plurality of lamp-type light emitting devices, each of said lamp-type light emitting devices having a light output side and side walls. The plurality of lamp-type light emitting devices are directly or indirectly connected to each other via said side walls. The latter allows to obtain a compact LED assembly with high brightness.

Abstract: An optical system as subject of the present invention comprises at least one packaged spatial light modulator comprising a front side for facing incident light. The optical system further comprises projection optics for projecting an image formed by the packaged spatial light modulator, there being a sealed gas space in between the front side of the packaged spatial light modulator. The optical system comprises a first heat transporting means being thermally coupled to the frontside of the packaged spatial light modulator, the first heat transporting means comprising a thermally conductive frame contacting the front side of the packaged spatial light modulator along an edge thereof. A second heat transporting means being thermally coupled to the package back side may be provided as well. The first and second heat transporting means are thermally separated by the package.

Abstract: A prism assembly including two or more prisms, at least one of which has or more surfaces that are used for total internal reflection or partial spectral reflection of incoming light, wherein at least a part of one of the surfaces used for reflection purposes is covered with an element that is spaced apart from the surface, such that a gap is defined in between the surface and the element, and wherein the gap is sealed with a seal that is applied on one of said prisms in order to prevent contaminants from entering the gap.

Abstract: A display or lighting element comprising at least one pixel element for producing or controlling light is provided. The pixel element has a light emitting surface. The display or lighting element furthermore includes a substantially transparent material above at least the light emitting surface. The substantially transparent material above the light emitting surface has a modified roughness so as to decrease the reflectivity of the substantially transparent material above the light emitting surface.

Abstract: The present invention relates to a light emitting device assembly. Such a LED assembly comprises a plurality of lamp-type light emitting devices, each of said lamp-type light emitting devices having a light output side and side walls. The plurality of lamp-type light emitting devices are directly or indirectly connected to each other via said side walls. The latter allows to obtain a compact LED assembly with high brightness.

Abstract: A display panel with improved reflectivity A display or lighting element comprising at least one pixel element for producing or controlling light is provided. The pixel element has a light emitting surface. The display or lighting element furthermore includes a substantially transparent material above at least the light emitting surface. The substantially transparent material above the light emitting surface has a modified roughness so as to decrease the reflectivity of the substantially transparent material above the light emitting surface.

Abstract: An improved architecture for a projector comprising a light source in the form of a lamp with a curved reflector with a distinctive focal distance for converging the light beam of the lamp; a so called cold mirror; an integration rod; a relay optics system consisting of a plurality of lenses followed by a light valve, wherein the architecture allows for the use of light sources with different focal distances.

Abstract: A device for coupling the light of multiple light sources (2, 3) that substantially consists of a reflectance surface (10, 11) for one or more of said light sources (2, 3) and at least one integration rod (14) having an incident surface (15), whereby the reflectance surfaces (10, 11) are positioned in light bundles (12) emitted by the light sources (2, 3) between said light sources (2, 3) and said integration rod (14); whereby the spot of each light source (2, 3) at its focal point has a surface that is smaller than the surface of said incident surface (15); and whereby said light bundles (12) enter the integration rod (14) at different parts of its incident surface (15).

Abstract: A prism assembly for use in optical devices, which includes a total internal reflection (TIR) assembly for redirecting an incoming lightbeam, a color prism assembly for splitting the incoming lightbeam into spectral bands, and at least one reflection light valve for redirecting and recombining the spectral bands to form an outgoing lightbeam, wherein the total internal reflection assembly has a back surface and said color prism assembly has a frontal surface facing said back surface and being parallel therewith, and wherein said back surface forms an angle with a general plane defined by the incoming and the outgoing lightbeams, which is different from 90°.

Abstract: A method for controlling a lighting device that consists of at least a lighting source, a color sequential device and a single light valve consisting of an array of light processing elements that are controlled by bits, the method comprising the steps of emitting a light beam with said light source, filtering said light beam by said color sequential device to achieve a colored light beam and processing said colored light beam with a bit depth of less than 16.

Abstract: The present invention relates to a light integrating device (10) comprising a solid light integrating device (1) with a first length (L1) and with coupled in abutment thereto by an optical coupling a hollow light integrating device (2) such that the light integrating device (10) has a second length (L2) larger than the first length (L1). The difference between the second length and the first length is in the range of 5 mm to 10 mm. No obstructions such as dirt or dust can attach to the end surface of the light integrating system (10) because the end surface is formed by a virtual surface, i.e. a surface which is not physically present. The light integrating system (10) according to the present invention may be used in projection systems, in lighting systems or in illumination systems. The present invention furthermore provides a method for generating a shaped and uniform light spot.

Abstract: An optical system as subject of the present invention comprises at least one packaged spatial light modulator comprising a front side for facing incident light. The optical system further comprises projection optics for projecting an image formed by the packaged spatial light modulator, there being a sealed gas space in between the front side of the packaged spatial light modulator. The optical system comprises a first heat transporting means being thermally coupled to the frontside of the packaged spatial light modulator, the first heat transporting means comprising a thermally conductive frame contacting the front side of the packaged spatial light modulator along an edge thereof. A second heat transporting means being thermally coupled to the package back side may be provided as well. The first and second heat transporting means are thermally separated by the package.