Disclosed are a phosphor sheet capable for converting light from LEDs into white light, a white light source device including the phosphor sheet, and a display device including the white light source device. The disclosed phosphor sheet includes a phosphor layer containing at least a phosphor and a resin; and a pair of transparent substrates sandwiching the phosphor layer. The phosphor sheet comprises a coloring material having an absorption maximum wavelength of at least one of from 480 nm to 510 nm or from 570 nm to 620 nm. The coloring material is contained in the phosphor layer. The transparent substrates are adhered to both surfaces of the phosphor layer. the phosphor layer has a thickness of 20 μm to 200 μm. An indicator of the usage amount of the coloring material defined by the following formula is 0.003 to 0.028: (indicator of the usage amount of the coloring material)=((blending amount of the coloring material in the phosphor layer)/(blending amount of a resin in the phosphor layer))×(the thickness of the phosphor layer (μm)).
所公开的是一种能够将发光二极管发出的光转换成白光的荧光粉片、一种包括该荧光粉片的白光光源装置,以及一种包括该白光光源装置的显示装置。所公开的荧光粉片包括至少含有荧光粉和
树脂的荧光粉层;以及夹住荧光粉层的一对透明基板。荧光粉片包含一种着色材料,其吸收最大波长为 480 纳米至 510 纳米或 570 纳米至 620 纳米中的至少一种。着色材料包含在荧光粉层中。荧光粉层的厚度为 20 μm 至 200 μm。由下式定义的着色材料用量指标为 0.003 至 0.028:(着色材料用量指标)=((荧光粉层中着色材料的混合量)/(荧光粉层中
树脂的混合量))×(荧光粉层的厚度(μm))。