Abstract: A spill light removing device includes a first blocker which is located perpendicularly to a stream route of light being irradiated from a light source and blocks a stream of light that is incident to the surface of the first blocker, except on a hole formed on the first blocker; a pass-through tunnel which is connected to the hole and is formed in the same direction to the stream route of light and allows the stream of the light to pass through; and a second blocker which has a irregularity pattern that is formed on a inner wall of the pass-through tunnel and reflects the light that is incident in the deviated direction of the stream route of light.

Abstract: A spill light removing device includes a first blocker which is located perpendicularly to a stream route of light being irradiated from a light source and blocks a stream of light that is incident to the surface of the first blocker, except on a hole formed on the first blocker; a pass-through tunnel which is connected to the hole and is formed in the same direction to the stream route of light and allows the stream of the light to pass through; and a second blocker which has a irregularity pattern that is formed on a inner wall of the pass-through tunnel and reflects the light that is incident in the deviated direction of the stream route of light.

Abstract: A display device includes a red laser light source which irradiates light in wavelength range of 636 nm to 645 nm; and a light projector which modulates and project the light on screen. With a display device according to embodiments of the present disclosure, the projected image may be by using three laser light sources which irradiate red, green and blue light each of which wavelengths is limited to 636 nm to 645 nm, 520 nm to 532 nm or 430 nm to 454 nm.

Abstract: An optical module is disclosed. In accordance with an embodiment of the present invention, the optical module can include a light source, emitting one of red, green and blue beam of light in the optical module; a light source holder, including a first chamber accommodating the light source, a first adhering part and a holder joint part being formed in an edge or corner of the first chamber; and a main base, including a second chamber accommodating the light source holder, a second adhering part that is adhered to the first adhering part and a base joint part that is in contact with the holder joint part being formed in an edge or corner of the second chamber. With present invention, the optical module can have its improved heat-resisting and impact-resisting properties.