US Patent No. 10,665,767

LIGHT SOURCE DEVICE, PROJECTION-TYPE DISPLAY DEVICE, AND METHOD FOR COOLING SEMICONDUCTOR LIGHT-EMITTING ELEMENT


Patent No. 10,665,767
Issue Date May 26, 2020
Title Light Source Device, Projection-type Display Device, And Method For Cooling Semiconductor Light-emitting Element
Inventorship Yusuke Tani, Tokyo (JP)
Assignee NEC DISPLAY SOLUTIONS, LTD., Tokyo (JP)

Claim of US Patent No. 10,665,767

1. A light source device, comprising:a plurality of semiconductor light-emitting elements;
a light source hank that accommodates said plurality of semiconductor light-emitting elements; and
a light source bank holder that mounts said light source bank on a first surface and includes a cooling mechanism provided on a second surface that includes a back surface of the first surface,
wherein the cooling mechanism includes:
a heat dissipating part provided at a position corresponding to said light source bank with said light source bank holder interposed therebetween;
a flow path cover that covers the second surface so as to accommodate the heat dissipating part;
an inflow terminal into which a coolant flows, the inflow terminal being provided on the flow path cover;
an outflow terminal from which the coolant flows out, the outflow terminal being provided on the flow path cover, so that a flow path by the heat dissipating part is formed between the outflow terminal and the inflow terminal; and
another flow path that is smaller in resistance than the flow path formed in the heat dissipating part, and that is formed between the inflow terminal and the heat dissipating part, and
wherein the heat dissipating part with a fin configuration is provided between the inflow terminal and the light source bank holder.