Polarizer and display

A display, comprising:

• a display body, and
• a polarizer, arranged in the display body, and the polarizer comprising:
• a first polarization layer group, comprising:
• a first light-transmitting layer, having a refractive index in a transverse magnetic (TM) wave direction named as a first X-direction refractive index and a refractive index in a transverse electric (TE) wave direction named as a first Y-direction refractive index, and
• a second light-transmitting layer, superimposed on a top surface of the first light-transmitting layer, wherein the second light-transmitting layer has a first light-transmitting medium and a second light-transmitting medium laterally arranged along the X-direction, a third refractive index of the first light-transmitting medium is different from a fourth refractive index of the second light-transmitting medium so that the second light-transmitting layer equivalently has a refractive index in a TM wave direction named as a second X-direction refractive index and a refractive index in a TE wave direction named as a second Y-direction refractive index, the first Y-direction refractive index is different from the second Y-direction refractive index, and the first X-direction refractive index is essentially the same as the second X-direction refractive index.