Texas Instruments Corporation

John T McKinley

Michael Terry Davis

Paul Lawrence Rancuret

Chris A Triska

Frank Joseph Poradish

John Patrick O'Connor

Scott Patrick Overmann

Clarence A Martin

Jacky D Grimmett

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.

Package for an integrated circuit

A method and mechanism for cooling a display device, having an extremely bright light focused on its surface and is mounted inside a closed chassis, by conducting heat from the device directly to the chassis walls, where the heat is then transferred to the lower temperature air of the ambient surroundings. The mechanism uses an adjustable mechanical linkage to close the gap and make a good thermal contact between the projection device package or heat sink stud and the chassis wall. This approach reduces the requirements for large heat sinks and noisy cooling fans found in many conventional projection systems.

Mechanically adjustable thermal path for projection display device cooling

A lamp assembly having a reflector () holding a lamp element, or burner (). The reflector () typically is an ellipse, with the burner arc positioned at one foci of the ellipse. A reflector extension () is designed to mate to the reflector (). The reflector extension () has a first open end toward the reflector (). The first open end typically is in contact with the reflector () to form a seal around the perimeter preventing glass shards from escaping between the reflector () and reflector extension (). Preferably, the reflector extension () contacts the reflector () around the perimeter of the reflector (). The second end of the reflector extension () also is open to allow the light from the arc to exit the reflector extension (). A transparent plate () placed across this second open end prevents glass from leaving the reflector extension (). The transparent plate () typically is glass, and may have an antireflective coating applied to the plate to limit the light reflected by the plate (). Two or more ventilation ports () in the reflector extension () allow cooling airflow into the cavity around the burner (). These ventilation ports alternatively are a series of small holes or slots in the reflector extension ().

Lamp reflector assembly

A lamp assembly having a reflector holding a lamp element, or burner. A reflector extension is designed to mate to the reflector. The reflector extension has a first open end toward the reflector. The first open end typically is in contact with the reflector to form a seal around the perimeter preventing glass shards from escaping between the reflector and reflector extension. The second end of the reflector extension also is open to allow the light from the arc to exit the reflector extension. A transparent plate placed across this second open end prevents glass from leaving the reflector extension. The transparent plate typically is glass, and may have an antireflective coating applied to the plate to limit the light reflected by the plate. Ventilation ports in the reflector extension allow cooling airflow into the cavity around the burner.

A display system based on a spatial light modulator (SLM). Various embodiments of the invention all involve some sort of articulating element, such that the display system has a stow position that is more compact and different from its operating position. In the operating position, the image formed by the SLM is re-oriented, if necessary, to a position suitable for viewing.

Housing and internal layout for compact SLM-based projector

A package (44) for a semiconductor device (10) includes a ceramic base (46, 146) with a mounting surface (50, 150) for supporting the device (10) and a light-transmissive cover (42, 142). A refractory seal ring (70) is fused to the base (46, 146) and to conductive paths (22) thereon. The upper surface (72) of the seal ring (70) is rendered optically flat with a selected angular relationship to the mounting surface (50). The upper and lower faces (76 & 78) of the cover (42, 142) are rendered optically flat with a selected angular relationship to each other, so that with an outer portion of the lower face (78) resting on the upper surface (72) of the seal ring (70), the faces (76, 78) have a selected angular relationship with the mounting surface (50, 150). The package (44) is expedient where the device (10) includes DMD's (30) having deflectable, light-reflective beams (32). The lower face (78) of the cover (42) includes an annular light-reflective coating (60, 160) surrounding a window (80) overlying the device (10). In some embodiments, the reflective coating (60) is deposited on the walls (56, 58) of a groove (54) formed in the lower face (78) of the cover (42). Facilities (90, 72/78 or 100) seal the cover (42, 142) to the seal ring (70). The reflective coating (60, 160) prevents any unmodulated light which is incident on the beams (32) from entering an optical system associated with the DMD-containing device (10). The sealing facilities (90, 72/78 or 100) include adhesives (90), which may contain microspheres, soft metals (90), glass frits (90), fusion bonding of the cover (42) to the seal ring (70), and solder preforms (100).

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Plano, TX, United States of America

John T McKinley