A light-emitting device, comprising: a silicon-based base substrate; at least one organic light-emitting diode device on the silicon-based base substrate; a first encapsulation layer, at a side of the at least one organic light-emitting diode device away from the silicon-based base substrate and comprising one or more sublayers; a color filter layer, at a side of the first encapsulation layer away from the at least one organic light-emitting diode device; and a second encapsulation layer, at a side of the color filter layer away from the first encapsulation layer and comprising one or more sublayers, wherein a refractive index of at least one sublayer in the first encapsulation layer is greater than a refractive index of at least one sublayer in the second encapsulation layer, wherein the first encapsulation layer comprises a first encapsulation sublayer and a second encapsulation sublayer which are laminated, and the second encapsulation sublayer is at a side of the first encapsulation sublayer away from the organic light-emitting diode device, and comprises at least one layer of first high-molecular polymer molecules; the first encapsulation sublayer comprises an inorganic material, and comprises a first sub-film layer and a second sub-film layer which are made of the inorganic material, and the second sub-film layer is at a side of the first sub-film layer away from the organic light-emitting diode device; the second encapsulation layer comprises a third encapsulation sublayer and a fourth encapsulation sublayer which are laminated; the fourth encapsulation sublayer is at a side of the third encapsulation sublayer away from the color filter layer, and the third encapsulation sublayer comprises at least one layer of second high-molecular polymer molecules; and characterized in that, a refractive index of the third encapsulation sublayer is greater than a refractive index of the fourth encapsulation sublayer, and an absolute value of a difference between refractive indexes of the first sub-film layer and the second encapsulation sublayer is greater than an absolute value of a difference between the refractive indexes of the third encapsulation sublayer and the fourth encapsulation sublayer. a silicon-based base substrate; at least one organic light-emitting diode device on the silicon-based base substrate; a first encapsulation layer, at a side of the at least one organic light-emitting diode device away from the silicon-based base substrate and comprising one or more sublayers; a color filter layer, at a side of the first encapsulation layer away from the at least one organic light-emitting diode device; and a second encapsulation layer, at a side of the color filter layer away from the first encapsulation layer and comprising one or more sublayers, wherein a refractive index of at least one sublayer in the first encapsulation layer is greater than a refractive index of at least one sublayer in the second encapsulation layer, wherein the first encapsulation layer comprises a first encapsulation sublayer and a second encapsulation sublayer which are laminated, and the second encapsulation sublayer is at a side of the first encapsulation sublayer away from the organic light-emitting diode device, and comprises at least one layer of first high-molecular polymer molecules; the first encapsulation sublayer comprises an inorganic material, and comprises a first sub-film layer and a second sub-film layer which are made of the inorganic material, and the second sub-film layer is at a side of the first sub-film layer away from the organic light-emitting diode device; the second encapsulation layer comprises a third encapsulation sublayer and a fourth encapsulation sublayer which are laminated; the fourth encapsulation sublayer is at a side of the third encapsulation sublayer away from the color filter layer, and the third encapsulation sublayer comprises at least one layer of second high-molecular polymer molecules; and characterized in that, a refractive index of the third encapsulation sublayer is greater than a refractive index of the fourth encapsulation sublayer, and an absolute value of a difference between refractive indexes of the first sub-film layer and the second encapsulation sublayer is greater than an absolute value of a difference between the refractive indexes of the third encapsulation sublayer and the fourth encapsulation sublayer.