Texas Instruments Corporation

Scott Patrick Overmann

Daniel Jay Morgan

John Charles Ehmke

Frank Joseph Poradish

Sean Christopher O'Brien

Edward Carl Fisher

John Patrick O'Connor

John T McKinley

Frank Odell Armstrong

Jane Qian Liu

Steven Paul Krycho

Bryan R Teichgraeber

Leatrice Lea Gallman Adams

Clarence A Martin

Jacky D Grimmett

In described examples, an image-generating panel is arranged for modulating a projection beam to include a modulated optical image. A cooling device is arranged to transfer heat received from the image-generating panel to a heat sink. The cooling device is arranged to receive the projection beam on a first side and to transmit the projection beam from a second side. The heat received from the image-generating panel can include heat generated by the image-generating panel in response to incidental sunlight.

Transparent display panel cooling

Scanning mirror based display system and method. A method comprises sampling a scanned light provided by a scanning mirror, converting the sampled scanned light into an electrical signal, analyzing the electrical signal to determine a position of the scanned light, and controlling the light source or the scanning mirror based on the analyzed electrical signal. The electrical signal based on the sampled scanned light may be used to ensure proper operation of the scanning mirror display system, such as determining failure of the scanning mirror, proper rendering of colors, determining whether the scanned light is following a desired scan path at a desired scan rate, and so forth.

Scanning mirror based display system and method

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.

Thermal conduction by encapsulation

To improve the cooling efficiency and ensure uniform cooling of all portions of the inside back surface of the reflector, a deflector () has been developed. The air deflector () typically encircles the lamp () allowing air () to flow between the deflector () and the lamp (). This air () cools the lamp (). Air () passing between the deflector () and the reflector () is deflected outward to cool the inside surface of the reflector near the lamp (). Because the deflector () is small and is located directly behind the lamp (), it does not block any of the useful light generated by the lamp (). The light striking the deflector () from the lamp (), if not for the deflector (), would have passed through the opening in the reflector () and would have been lost. The deflector () typically has a number of vanes around the perimeter of a cylindrical body portion. The vanes are bent outward at an angle sufficient to force part of the cooling air to flow across the inside back surface of the reflector.

Lamp reflector cooling air deflector

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

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Allen, TX, United States of America

Scott Patrick Overmann