JP2008287073A5 - - Google Patents

Claims (7)

A light source;
A light guide that enters the light from the light source and emits the light from the exit surface; and
A display element provided at the top of the exit surface;
A filter layer that is provided between the light guide and the display element and selectively reflects a light component of a specific wavelength among the light from the light source;
A phosphor layer that is provided between the light guide and the filter layer and includes a phosphor that emits light of a different wavelength by being excited by the light component of the specific wavelength;
The display device, wherein the light component reflected by the filter layer is converted into light having a different wavelength by the phosphor layer, and is transmitted through the filter layer.   The display device according to claim 1, further comprising a second filter layer that reflects a light component having a second specific wavelength different from the specific wavelength between the filter layer and the display element.   The specific wavelength is 480 nm to 500 nm, the second specific wavelength is 570 nm to 590 nm, and the phosphor layer includes a red phosphor that converts a light component of the specific wavelength into red light. The display device described in 1.   The display according to claim 2, further comprising a second phosphor layer including a phosphor that emits light by being excited by the light of the second specific wavelength between the second filter layer and the filter layer. apparatus. The display element includes a color filter having a color layer of RGB,
The specific wavelength is 480 nm to 500 nm, the second specific wavelength is 570 nm to 590 nm, the phosphor layer includes a green phosphor that converts a light component of the specific wavelength into green light, and the second phosphor layer includes The display device according to claim 4, further comprising a red phosphor that converts the light component having the second specific wavelength into red light. A light source;
A light guide that enters the light from the light source and emits the light from the exit surface; and
A filter layer that is provided above the exit surface and selectively reflects a light component of a specific wavelength among the light from the light source;
A phosphor layer that is provided between the light guide and the filter layer and includes a phosphor that emits light of a different wavelength by being excited by the light component of the specific wavelength;
An illumination device, wherein the light component reflected by the filter layer is transmitted through the filter layer by the phosphor layer converting it into light having a different wavelength. The lighting device according to claim 6, wherein the specific wavelength is 510 nm to 540 nm, and the phosphor layer includes a red phosphor that converts a light component of the specific wavelength into red light.