Liquid crystal display panel and display device

A liquid crystal display panel, comprising:

• a first substrate and a second substrate facing the first substrate;
• a liquid crystal layer disposed between the first substrate and the second substrate;
• a first linear polarizer disposed on a side of the first substrate facing away from the liquid crystal layer and having an absorption axis extending along a first direction;
• a second linear polarizer disposed on a side of the second substrate facing away from the liquid crystal layer and having an absorption axis extending along a direction perpendicular to the first direction at a front viewing angle;
• a first quarter-wave plate disposed at the side of the first substrate facing away from the liquid crystal layer;
• a first half-wave plate disposed at the side of the first substrate facing away from the liquid crystal layer;
• a second quarter-wave plate disposed between the first substrate and the liquid crystal layer;
• and
• a second half-wave plate disposed between the first substrate and the liquid crystal layer,
• wherein light leakage is reduced when the liquid crystal display panel is in a black state;
• wherein the first half-wave plate is arranged between the first linear polarizer and the first quarter-wave plate,
• wherein an angle θ1 is formed between a slow axis of the first half-wave plate and the first direction, and an angle θ2 is formed between a slow axis of the first quarter-wave plate and the first direction;
• and the first quarter-wave plate is made of a positive material and θ2=2θ1+45°, or the first quarter-wave plate is made of a negative material and θ2=2θ1+135°;
• and
• wherein the second quarter-wave plate is made of a positive material, and an angle formed between a slow axis of the second quarter-wave plate and the first direction is 135°;
• or the second quarter-wave plate is made of a negative material, and the angle formed between the slow axis of the second quarter-wave plate and the first direction is 45°.