PLANAR HEATING ELEMENT FOR LIGHT EMITTER AND LIGHT EMITTER

• Main Authors: KAMIOKA TAKENORI, TSUJIUCHI NAOKI
• Format: Patent
• Language: English; Japanese
• Published: 07.09.2017
• Subjects: ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; PHYSICS; SIGNALLING; TRAFFIC CONTROL SYSTEMS

PROBLEM TO BE SOLVED: To provide a planar heating element for a light emitter, which is high in transparency and heat generation efficiency, and which is superior in shaping processability and adequate in resistance to moisture and heat.SOLUTION: A planar heating element 10 for a light emitter comprises a carbon nanotube layer 12 and a coating layer 13 on at least one face of a base material 11. In the planar heating element for a light emitter, the total light transmittance is 75% or more, and the change rate (R) of a surface resistance value after a wet heat test (an exposure under an atmosphere at 85°C and 85%RH for 500 hours) is 50% or less.SELECTED DRAWING: Figure 1 【課題】透明性および発熱効率が高く、成型加工性に優れ、かつ湿熱耐久性が良好である発光体用面状発熱体を提供する。【解決手段】基材１１の少なくとも一方に面に、カーボンナノチューブ層１２および被覆層１３を有する発光体用面状発熱体１０であって、全光線透過率が７５％以上、湿熱試験（８５℃、８５％ＲＨの雰囲気下に５００時間暴露）後の表面抵抗値変化率（Ｒ）が５０％以下であることを特徴とする、発光体用面状発熱体。【選択図】図１