Display apparatus having back-light unit and liquid crystal panel

A display apparatus comprising:

• a viewing angle control unit disposed on a back-light unit;
• and
• a liquid crystal panel disposed on the viewing angle control unit,
• wherein the viewing angle control unit includes a first control electrode, variable patterns and a second control electrode which are sequentially disposed between a lower control substrate and an upper control substrate,
• wherein the first control electrode includes first electrode patterns extending side by side in a first direction, and second electrode patterns extending side by side in a second direction perpendicular to the first direction,
• wherein the variable patterns include first variable pattern overlapping the first electrode patterns and second variable pattern overlapping the second electrode patterns,
• wherein each of the first variable patterns and each of the second variable patterns includes an electrochromic material,
• wherein the second electrode patterns are insulated from the first electrode patterns,
• wherein each of the second variable patterns is in contact with one of the first variable patterns on one of points where the second electrode patterns intersect the first electrode patterns,
• wherein the viewing angle control unit further includes light-blocking patterns extending side by side in the first direction,
• wherein the light-blocking patterns overlap the first variable patterns,
• wherein each of the second variable patterns includes a region overlapping with a transparent region disposed between the light-blocking patterns along a thickness direction of the viewing angle control unit, and
• wherein the region of each second variable patterns overlapping with the transparent region disposed between the light-blocking patterns extends in the second direction between the first variable patterns.