US 2025/0053073 A1Published application

Optical engine module and projection device

AssigneeCoretronic Corporation

InventorTe-Ying Tsai

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Abstract

An optical engine module includes a cover, a light valve module, and a thermal glue. The cover has at least one filling hole, and includes a cover part having an opening, and support parts and connection parts vertically connected to the cover part. The light valve module includes a base disposed on the support parts, and a light valve element having a light emitting surface and a peripheral surface connected thereto. The light emitting surface corresponds to the opening and is spaced apart from the cover part. The connection parts surround the peripheral surface. The filling hole communicates with a space between the peripheral surface and the cover. The thermal glue is disposed between the light valve module and the cover, and connects the base, the peripheral surface, the cover part, the connection parts, and the support parts. A projection device includes the optical engine module, which achieves favorable heat dissipation efficiency.

Claims17

Dependent claims

An optical engine module, comprising:

a cover, having at least one filling hole and comprising a cover part, a plurality of support parts, and a plurality of connection parts, wherein the support parts and the connection parts are vertically connected to the cover part, the cover part has an opening, and the connection parts connect the support parts that are separated from each other;
a light valve module, comprising a base and a light valve element disposed on the base, wherein the base is disposed on the support parts of the cover, the light valve element has a light emitting surface and a peripheral surface connected to the light emitting surface, the light emitting surface corresponds to the opening and is spaced apart from the cover part, the connection parts surround the peripheral surface, the at least one filling hole communicates with a space between the peripheral surface of the light valve element and the cover;
and
a thermal glue, disposed between the light valve module and the cover, wherein the thermal glue connects the base, the peripheral surface, the cover part, the connection parts, and the support parts.

1 more element

A projection device, comprising:

a light source module, configured to provide an illumination beam;
an optical engine module, comprising:
a cover, having at least one filling hole and comprising a cover part, a plurality of support parts, and a plurality of connection parts, wherein the support parts and the connection parts are vertically connected to the cover part, the cover part has an opening, and the connection parts connect the support parts that are separated from each other;
a light valve module, disposed on a transmission path of the illumination beam and configured to convert the illumination beam into an image beam, wherein the light valve module comprises a base and a light valve element, the light valve element is disposed on the base, the base is disposed on the support parts of the cover, the light valve element has a light emitting surface and a peripheral surface connected to the light emitting surface, the light emitting surface corresponds to the opening and is spaced apart from the cover part, the connection parts surround the peripheral surface, and the at least one filling hole communicates with a space between the peripheral surface of the light valve element and the cover;
and
a thermal glue, disposed between the light valve module and the cover, wherein the thermal glue connects the base, the peripheral surface, the cover part, the connection parts, and the support parts;
and
a projection lens, disposed on a transmission path of the image beam and configured to project the image beam out of the projection device.

5 more elements

Dependencies are inferred from the claim text.