Optical path control member and display device comprising same

An optical path control member comprising:

• a first substrate;
• a first electrode disposed on the first substrate;
• a second substrate disposed on the first substrate;
• a second electrode disposed under the second substrate;
• and
• a light conversion unit disposed between the first electrode and the second electrode,
• wherein the light conversion unit includes a partition wall part and an accommodation part alternately disposed,
• wherein the accommodation part changes light transmittance according to application of a voltage,
• wherein a width of the accommodation part in a horizontal direction changes along a thickness direction of the first substrate,
• wherein a width of the partition wall part in the horizontal direction changes along the thickness direction of the first substrate,
• wherein the accommodation part has a first width of a narrowest region of the accommodation part and a second width of a widest region of the accommodation part,
• wherein the partition wall part has a third width of a widest region of the partition wall part,
• wherein the third width of the partition wall part is greater than the second width of the accommodation part, and
• wherein a ratio of the second width to the first width is 1.8 or less.