HEAD MOUNTED DISPLAY

PROBLEM TO BE SOLVED: To provide a head mounted display in which heat generated from a circuit board and a battery in a drive unit is effectively dissipated, and in particular, temperature rise of the battery is suppressed to be the heatproof temperature or below of the battery.SOLUTION: A drive unit 103 can be separated into a first casing 201 that stores a circuit board 203 and a second casing 202 that stores a battery 204, and a heat shielding material 205 is disposed between the first casing 201 and the second casing 202. A first heat conducting material 206 is disposed between the circuit board and the first casing and a second heat conducting material 207 is disposed between the battery and the second casing. A volume V1 of the first casing 201 is made larger than a volume V2 of the second casing 202 and the thickness t1 of the first heat conducting material 206 is made larger than the thickness t2 of the second heat conducting material 207 when the heat generation amount of the circuit board is larger than the heat generation amount of the battery and the heatproof temperature of the circuit board is higher than the heatproof temperature of the battery.SELECTED DRAWING: Figure 4 【課題】駆動部における回路基板と電池からの発熱を効果的に放熱し、特に電池の温度上昇を耐熱温度以下に抑えるヘッドマウントディスプレイを提供すること。【解決手段】駆動部１０３は、回路基板２０３を格納する第一の筐体２０１と電池２０４を格納する第二の筐体２０２とに分離可能であり、第一の筐体２０１と第二の筐体２０２の間に遮熱材２０５を配置する。回路基板と第一の筐体の間に第一の熱伝導部材２０６を配置し、電池と第二の筐体の間に第二の熱伝導部材２０７を配置する。回路基板の発熱量が電池の発熱量より大きく、回路基板の耐熱温度が電池の耐熱温度より高いとき、第一の筐体２０１の容積Ｖ１を第二の筐体２０２の容積Ｖ２より大きくし、第一の熱伝導部材２０６の厚さｔ１を第二の熱伝導部材２０７の厚さｔ２より大きくする。【選択図】図４