Display module, display apparatus and display method therefor

A display module, comprising:

• a first substrate;
• a second substrate;
• a liquid crystal layer in a cell gap between the first substrate and the second substrate;
• wherein the liquid crystal layer adopts an electrically controlled birefringence type liquid crystal;
• the display module further comprises a first polarizing film, a first one-half wave plate and a first quarter wave plate;
• the first quarter wave plate, the first one-half wave plate and the first polarizing film are on a side of the first substrate away from the liquid crystal layer and are sequentially stacked in a direction away from the first substrate;
• the display module further comprises a second polarizing film, a second one-half wave plate and a second quarter wave plate;
• the second quarter wave plate, the second one-half wave plate and the second polarizing film are on a side of the second substrate away from the liquid crystal layer and are sequentially stacked in a direction away from the second substrate;
• the first substrate comprises a transmissive region and a reflective region, and a thickness of a part of the liquid crystal layer in the transmissive region is greater than a thickness of a part of the liquid crystal layer in the reflective region;
• the transmissive region allows light incident from a side of the first substrate away from the second substrate to pass through the transmissive region;
• the reflective region allows light incident from a side of the second substrate away from the first substrate to be reflected;
• an angle between an absorption axis of the first polarizing film and a first direction is in a range of 85° to 105°;
• an angle between a slow axis of the first one-half wave plate and the first direction is in a range of 105° to 125°;
• a retardation amount of light with wavelength of 550 nm by the first one-half wave plate is in a range of 260 nm to 280 nm;
• an angle between a slow axis of the first quarter wave plate and the first direction is in a range of −20° to 20°;
• a retardation amount of light with wavelength of 550 nm by the first quarter wave plate is in a range of 136 nm to 170 nm;
• an angle between an absorption axis of the second polarizing film and the first direction is in a range of 0° to 10°;
• an angle between a slow axis of the second one-half wave plate and the first direction is in a range of 20° to 30°;
• a retardation amount of light with wavelength of 550 nm by the second one-half wave plate is in a range of 260 nm to 280 nm;
• an angle between a slow axis of the second quarter wave plate and the first direction is in a range of 80° to 100°;
• a retardation amount of light with wavelength of 550 nm by the second quarter wave plate is in a range of 80 nm to 115 nm;
• a retardation amount of light by the part of the liquid crystal layer in the transmissive region is in a range of 228 nm to 402 nm;
• a retardation amount of light by the part of the liquid crystal layer in the reflective region is in a range of 101 nm to 214 nm;
• and
• the first direction is a direction perpendicular to an initial alignment direction of the liquid crystal layer.