Light source device

[0025]A light source device according to a first embodiment of the present invention is explained. The light source device according to this embodiment can be used, for example, as a light source device of an image display apparatus including a display unit that transmits light from the light source device to display an image on a screen. Specifically, the light source device according to this embodiment can be used as light source devices of imagedisplay apparatuses such as a liquid crystal display apparatus, an advertisement display apparatus, and a sign display apparatus. The light source device according to this embodiment can also be used as a light source device of an image display apparatus including a display element (e.g., a micro electro mechanical system (MEMS) shutter) different from a liquid crystal element of the liquid crystal display apparatus. The light source device according to this embodiment can also be used as light source devices of apparatuses (a room light, a s

[0045]A light source device according to a second embodiment of the present invention is explained below. In this embodiment, a configuration is explained in which unevenness is provided at an end portion of a light source holding member 103 in order to retain positions of a wavelength conversion member and the like in a plane of a sheet member.

[0046]FIG. 3A is a diagram (a top view) showing an example of the configuration of a liquid crystal display apparatus 200 according to this embodiment. FIG. 3B is an A-A′ sectional view of FIG. 3A. A B-B′ cross section of FIG. 3A is the same as FIG. 1.

[0047]The liquid crystal display apparatus 200 includes a liquid crystal panel 201, a liquid crystal panel holding member 202, and the light source device. The light source device includes a light source holding member 203, a reflecting member 204, a diffusing member 205, a wavelength conversion member 206, a beam control member 207, a light absorbing member 208, light sources 209, a light source b

[0064]In this embodiment, the configuration of a light source device in the case in which a fixing member is used to fix the diffusing member 105 and the like to the light source holding member 103 is explained.

[0065]FIG. 4A is a diagram (a top view) showing an example of the configuration of a liquid crystal display apparatus 300 according to this embodiment. FIG. 4B is a C-C′ sectional view of FIG. 4A.

[0066]The liquid crystal display apparatus 300 includes a liquid crystal panel 301, a liquid crystal panel holding member 302, and the light source device. The light source device includes a light source holding member 303, a reflecting member 304, a diffusing member 305, a wavelength conversion member 306, a beam control member 307, a light absorbing member 308, a light source 309, a light source board 310, and a sheet fixing member 311.

[0067]The liquid crystal panel 301 is a member same as the liquid crystal panel 101 in the first embodiment (FIG. 1).

[0068]The liquid crystal panel hol