| 摘要 |
A wavelength conversion element includes at least one wavelength conversion layer. The wavelength conversion layer has a matrix layer and particles that is disposed in the matrix layer. The matrix layer is formed of a curable resin material or an inorganic material with a bandgap of 3 eV or more. The particles are formed of a wavelength conversion composition for wavelength-converting absorbed light in a specific wavelength range into light having energy lower than energy of the absorbed light, and that have a particle diameter of 3 nm to 20 nm. An interval between neighboring particles is equal to or less than the particle diameter of the particles. Consequently, the wavelength conversion layer prevents reflection of light in a wavelength range other than the specific wavelength range. |
