Abstract: A packaged electronic device includes a substrate with an upper surface interrupted by a well formed in the substrate. The well has a substrate bottom surface and a substrate sidewall. An electronic device is located in the well over the substrate bottom surface and has a device top surface and a device sidewall. A trench is bounded by the substrate bottom surface, the substrate sidewall and the device sidewall. An encapsulant at least partially fills the trench and contacts the substrate sidewall and the device sidewall. The encapsulant has a first elevation on the substrate sidewall with respect to the substrate bottom surface and a second elevation on the substrate device sidewall with respect to the substrate bottom surface that is at least about 35% greater than the first elevation.

Abstract: According to particular embodiments, a system comprises one or mores light sources, a Digital Micromirror Device (DMD) system, and a controller. A light source is configured to generate light, and the DMD system comprises DMD regions configured to modulate the light. The controller is configured to repeat the following for a number of iterations: instruct each light source to scroll the light across the DMD system at a current amplitude level; instruct one or more DMD regions to operate as one or more active regions that modulate a first portion of the light to generate an image; and instruct the remaining DMD regions to operate as an amplitude modulation region that receives a second portion of the light, the second portion of the light transitioning from a previous amplitude level to the current amplitude level.

Abstract: A light valve assembly comprises a holographic optical element and a light valve that comprises an array of individually addressable pixels. The light valve assemblies can be fabricated on the die level or on a wafer-level.

Abstract: Disclosed embodiments relate to techniques for color gamut mapping when an input signal transmitting color visual images has a different color gamut than does the output display device. Polynomial rubber-sheet mapping may be used to translate the input color gamut to the output color gamut on a hue-by-hue basis within a three-dimensional perceptual color space. Also, a memory color look-up table may be used to preserve memory colors in the input gamut which are capable of reproduction within the output gamut. By using such techniques alone or in combination, it may be possible to more effectively map an input color gamut to a different output color gamut with improved calorimetric accuracy.

Abstract: A micromechanical device and system utilizing a supplemental reset pulse to ensure deflectable members deflect to the desired position. After loading data into a micromechanical device, a reset pulse is used to position the deflectable member to a position indicated by the data. A supplemental reset pulse is then applied to ensure the deflectable member is driven to the position indicated by the data. The method and system are also used to ensure the deflectable members are driven to a neutral position.

Abstract: System and method for thin projection display systems. An embodiment comprises a light source, an array of light modulators optically coupled to the light source, a lensed mirror optically coupled to the array, and a controller electronically coupled to the array and to the light source. The array produces images on a display plane by modulating light from the light source based on image data and the controller provides light commands to the light source and load image data into the array. The lensed mirror reflects modulated light from the array onto the display plane, the lensed mirror comprising a refractive portion and a reflective portion. The refractive portion of the lensed mirror helps to increase the light bending capability to help reduce the overall thickness of a projection display system.

Abstract: A spatial light modulator clocking method, called fast-clear, which employs embedded clear hardware in the SLM to enable the fast-clear bit to generate least-significant short-bit periods and without any bit ordering restrictions. In this method, fast data clears 34 are inserted between block data loads 32,36 within a frame refresh period. This method virtually eliminates the artifacts associated with the earlier reset-release timing method without the bit-ordering restriction of the jog-clear method.

Abstract: In display systems employing spatial light modulators, the OFF-state light from OFF-state pixels of the spatial light modulator can be captured and directed back to the pixels of the spatial light modulator so as to recycle the OFF-state light in the display system. Bitplanes derived from the desired image to be produced are calibrated to include the recycled off-state light to properly produce the desired image using the display system.

Abstract: The present invention provides a method for planarizing a metal layer, and a method for manufacturing a micro pixel array. The method for planarizing the metal layer, without limitation, may include the steps of forming a metal layer over a photoresist layer, and then planarizing the metal layer using a chemical mechanical planarization process.

Abstract: A microelectromechanical device package with integral a heater and a method for packaging the microelectromechanical device are disclosed in this invention. The microelectromechanical device package comprises a first package substrate and second substrate, between which a microelectromechanical device, such as a micromirror array device is located. In order to bonding the first and second package substrates so as to package the microelectromechanical device inside, a sealing medium layer is deposited, and heated by the heater so as to bond the first and second package substrates together.

Abstract: According to certain embodiments, an apparatus for cooling light emitting diodes (LEDs) in projectors includes one or more first LEDs, one or more first heat sinks, one or more second LEDs, and one or more second heat sinks. The first LEDs are configured to generate light, and each first LED has a first desired junction temperature. The first heat sinks are configured to dissipate heat generated by the first LEDs. The second LEDs are configured to generate light, and each second LED has a second desired junction temperature that is higher than the first desired junction temperature. The second heat sinks are configured to dissipate heat generated by the one or more second LEDs. A cooling fan directs air flow over the first heat sinks and the second heat sinks, and an exhaust vent enables the air flow over the first heat sinks and the second heat sinks.

Abstract: According to one embodiment of the present invention, a system for illuminating a target includes a light source configured to emit one or more light beams with a first divergence. The system further includes a lens separated from the light source. The lens is configured to substantially satisfy the sine condition without removing spherical aberrations from the one or more light beams. The lens is further configured to receive the one or more light beams with the first divergence. The lens is further configured to change the first divergence of the one or more light beams to a second divergence. The second divergence is less than the first divergence. The second divergence is greater than zero. The lens is further configured to transmit the one or more light beams with the second divergence.

Abstract: A micromirror device and a method of making the same are disclosed herein. The micromirror device comprises a mirror plate, hinge, and post each having an electrically conductive layer. One of the hinge, mirror plate, and post further comprises an electrically insulating layer. To enable the electrical connections between the conducting layers of the hinge, mirror plate, and post, the insulating layer is patterned.

Abstract: According to various illustrative embodiments of the present invention, a device for an integrated circuit includes a monolithic frame having a plurality of alignment features disposed thereon, the monolithic frame having a mounting surface disposed thereon for the integrated circuit, the monolithic frame also having a thermal interface area disposed thereon for the integrated circuit. The device also includes an electrical interface capable of providing an electrical connection for the integrated circuit, the plurality of alignment features being substantially independent of the electrical interface, and an adhesive layer disposed between the monolithic frame and the electrical interface.

Abstract: A wire bonder (900) with a rigid pedestal (902) having resilient inserts (920). A package (904) placed on the pedestal (902) contains an electrical device (906). The bond pads on the electrical device (906) are electrically connected to bond pads on the package (904) by a series of bond wires (908) through use of a well know bonding process. A vacuum source holds the package (904) against the pedestal (902) deforming the resilient strips (920) located in the rigid member (902) of the pedestal and ensuring good contact between the ground pads of the package (904) and conductive resilient members (920). The resilient members (920) are conductive and electrically connect the package grounds to a system ground (922).

Abstract: In accordance with the teachings of the present disclosure, a method and system for controlling spatial light modulator buses are provided. In accordance with one embodiment of the present disclosure, a bus controller includes a configurable bus interface having first and second modes of operation. The first mode of operation is configured to interface with a single spatial light modulator. The second mode of operation is configured to interface in parallel with a plurality of spatial light modulators. In accordance with another embodiment of the present disclosure, a method of controlling a bus includes configuring a bus interface of a bus controller to interface in parallel with a plurality of digital micromirror devices.

Abstract: An array of individually addressable micromirrors is characterized by sending a driving signal to a pixel group having a fewer number of micromirrors. A response of the micromirrors in the group is measured; and the micromirror array is characterized based upon at least the measured response.

Abstract: A system and method of aligning a micromirror array to the micromirror package and the micromirror package to a display system. One embodiment provides a method of forming and utilizing a package that exposes regions of an alignment reference plane. The device within the package is mounted on the reference plane such that the exposed regions allow precise alignment with the device in a direction perpendicular to the reference plane. Alignment surfaces formed in a display system or other system contact the reference plane at the exposed regions to position the packaged device relative to other components of the system. One embodiment of the package 400 taught has laminated layers forming the package substrate 402 and providing a precision reference plane 416 relative to the position of the micromirror device 404. The package may be formed by laminating several layers of material in sheets to form several package substrates simultaneously.

Abstract: A system and method for collimating light emitted from a light source, such as a light-emitting diode (LED), is provided. The system and method includes two lenses, both lenses having a positive power for converging the light rays. In one example, the first lens is a hemispherical ball lens and the second lens is configured such that one surface conforms to the exiting surface of the first lens. The exiting surface of the second lens may be, for example, a Fresnel lens or an aspherical lens. In another example, the first lens may be a hemispherical or a hyperhemispherical ball lens. The second lens has an outer circumference having two aspherical surfaces. The inner portion of the second lens is in direct contact with the first lens. This configuration creates a dual-channel collimator.

Abstract: A spatial light modulator comprises an array of individually addressable pixels enclosed within a space formed by a package lid and a package substrate. An aperture through which incident visible light pass into the package is formed on the package lid. In display systems employing the spatial light modulator, the illumination system is focused on a plane away from the pixels of the spatial light modulator so as to reduce cost.