Oled panel and its method of manufacturing, oled display

An OLED panel, comprising:

• an OLED device, comprising an organic light emitting layer;
• and
• a thin film packaging structure, formed on the OLED device and covering the organic light emitting layer, wherein:
• the thin film packaging structure comprises:
• a first inorganic film layer formed on the OLED device;
• a first organic film layer formed on a side of the first inorganic film layer far away from the OLED device;
• a second inorganic film layer formed on the first organic film layer;
• a third inorganic film layer formed on the second inorganic film layer;
• and
• a fourth inorganic film layer formed on the third inorganic film layer;
• wherein, a refractive index of the first inorganic film layer is greater than a refractive index of the first organic film layer;
• and
• a refractive index of the second inorganic film layer and a refractive index of the fourth inorganic film layer are both smaller than a refractive index of the third inorganic film layer, a difference between the refractive index of the first inorganic film layer and the refractive index of the first organic film layer is 0.1-0.3.

An OLED display, comprising an OLED panel, the OLED panel comprising:

• an OLED device, comprising an organic light emitting layer;
• and
• a thin film packaging structure, formed on the OLED device and covering the organic light emitting layer, wherein:
• the thin film packaging structure comprises:
• a first inorganic film layer formed on the OLED device;
• a first organic film layer formed on a side of the first inorganic film layer far away from the OLED device;
• a second inorganic film layer formed on the first organic film layer;
• a third inorganic film layer formed on the second inorganic film layer;
• and
• a fourth inorganic film layer formed on the third inorganic film layer;
• wherein, a refractive index of the first inorganic film layer is greater than a refractive index of the first organic film layer;
• and
• a refractive index of the second inorganic film layer and a refractive index of the fourth inorganic film layer are both smaller than a refractive index of the third inorganic film layer, wherein a difference between the refractive index of the first inorganic film layer and the refractive index of the first organic film layer is 0.1-0.3.