Method of reducing color breakup of reflection of ambient light in display panel, display panel, display apparatus, and method of fabricating display panel

A method of reducing color breakup of reflection of ambient light in a display panel;

• wherein the display panel comprises:
• a base substrate;
• a plurality of light emitting elements on the base substrate and respectively in a plurality of subpixels;
• and
• a color breakup-prevention structure configured to reduce color breakup of reflection of ambient light in the plurality of subpixels;
• wherein the color breakup-prevention structure comprises:
• a high refractive index lens layer on a side of the plurality of light emitting elements away from the base substrate;
• a low refractive index modulation layer on a side of the high refractive index lens layer away from the base substrate;
• a first color filter layer in a plurality of subpixel regions, and spaced apart from the high refractive index lens layer by the low refractive index modulation layer;
• and
• a first black matrix layer in an inter-subpixel region, and spaced apart from the high refractive index lens layer by the low refractive index modulation layer;
• wherein the high refractive index lens layer has a first refractive index;
• the low refractive index modulation layer has a second refractive index smaller than the first refractive index;
• the low refractive index modulation layer is substantially transparent and substantially free of a chromogenic material;
• and
• the high refractive index lens layer comprises a plurality of lens portions spaced apart from each other and respectively in the plurality of subpixels;
• wherein the method of reducing color breakup of reflection of ambient light comprises:
• refracting a first incident ambient light beam at a first interface between a respective one of the plurality of lens portions and a first medium on a side of the respective one of the plurality of lens portions away from the respective one of the plurality of light emitting elements, to generate a first refracted light beam having a direction altered from a direction of a light beam in the first medium;
• reflecting the first refracted light beam by a reflective structure in a respective one of the plurality of light emitting elements to generate a first reflected light beam to continue transmitting through at least the first medium, resulting in a first residual portion arriving at the first black matrix layer;
• and
• at least partially absorbing the first residual portion of the first reflected light beam by the first black matrix layer;
• wherein the method further comprises:
• refracting a second incident ambient light beam at the first interface, to generate a second refracted light beam having a direction altered from the direction of the light beam in the first medium;
• reflecting the second refracted light beam by the reflective structure in the respective one of the plurality of light emitting elements to generate a second reflected light beam to continue transmitting through at least the first medium, resulting in a second residual portion arriving at the first color filter layer in a first adjacent subpixel adjacent to a subpixel having the respective one of the plurality of light emitting elements;
• and
• at least partially absorbing the second residual portion of the second reflected light beam by the first color filter layer in the first adjacent subpixel;
• wherein the first color filter layer in the first adjacent subpixel has a color different from a color of the first color filter layer in the subpixel having the respective one of the plurality of light emitting elements;
• wherein the color breakup-prevention structure comprises:
• a second color filter layer in the plurality of subpixel regions, and spaced apart from the low refractive index modulation layer by the high refractive index lens layer;
• and
• a second black matrix layer in the inter-subpixel region, and spaced apart from the low refractive index modulation layer by the high refractive index lens layer;
• wherein the method further comprises:
• refracting a third incident ambient light beam at an interface between the high refractive index lens layer and the first medium, to generate a third refracted light beam having a direction altered from the direction of the light beam in the first medium;
• at least partially absorbing the third refracted light beam by the second color filter layer in the subpixel having the respective one of the plurality of light emitting elements;
• reflecting the third refracted light beam by the reflective structure in the respective one of the plurality of light emitting elements to generate a third reflected light beam, the third reflected light beam transmitting along a direction toward a second adjacent subpixel adjacent to the subpixel having the respective one of the plurality of light emitting elements;
• and
• at least partially absorbing the third reflected light beam by the second color filter layer in the subpixel having the respective one of the plurality of light emitting elements;
• wherein the first color filter layer in the second adjacent subpixel has a color different from a color of the second color filter layer in the subpixel having the respective one of the plurality of light emitting elements.