Polarizing component and display panel

A polarizing component, comprising:

• a first polarizer provided on a light-incident side of the polarizing component, and configured to polarize a light incident thereon into a first linearly polarized light;
• a wave plate layer on a surface of the first polarizer facing away from the light-incident side;
• and
• a second polarizer provided on a surface of the wave plate layer facing away from the light-incident side, on a light-emergent side opposite to the light-incident side of the polarizing component, and configured to polarize a light incident thereon into a second linearly polarized light;
• and
• wherein the wave plate layer comprises:
• a phase delay portion configured to delay a phase of the first linearly polarized light which is incident thereon in a direction different from a direction of an optical axis of the phase delay portion in such a way that a polarized light which exits the phase delay portion comprises a first polarized light in a first polarization direction and a second polarized light in a second polarization direction, without incurring any phase delay of the first linearly polarized light which is incident on the phase delay portion in a direction consistent with the direction of the optical axis of the phase delay portion;
• and
• a light transmission portion provided on a same layer as the phase delay portion, the light transmission portion being configured to transmit the first linearly polarized light which is incident thereon,
• wherein the light transmission portion and the phase delay portion have an identical thickness, and together, side by side, form a single layer between the first polarizer and the second polarizer, and
• wherein the wave plate layer comprises a cross-linked azobenzene polymer film layer, and the phase delay portion is a patterned region in the cross-linked azobenzene polymer film layer, which patterned region is in a crystallization form after having been irradiated by linearly polarized light.