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 plurality of partition parts and a plurality of accommodation parts alternately disposed,
• each of the plurality of accommodation parts includes a dispersion liquid and light conversion particles dispersed in the dispersion liquid,
• the plurality of accommodation parts are driven in a public mode and a privacy mode depending on whether a voltage is applied,
• the plurality of accommodation parts are converted from the privacy mode to the public mode, when a first voltage is applied,
• the plurality of accommodation parts are converted from the public mode to the privacy mode, when a second voltage and a third voltage are applied, and
• wherein the second voltage has a pulse voltage in which a negative voltage and a positive voltage are continuously repeated, and the third voltage has a pulse voltage in which a negative voltage and a positive voltage are continuously repeated after the second voltage is applied, wherein an application time of the negative voltage in the pulse voltage of each of the second voltage and the third voltage is greater than an application time of the positive voltage in the pulse voltage of each of the second voltage and the third voltage, respectively,
• wherein absolute values of the first voltage, the positive voltage of the second voltage, the negative voltage of the second voltage, the positive voltage of the third voltage, and the negative voltage of the third voltage are equal, and
• wherein a ratio of the application time of the negative voltage and the application time of the positive voltage of the second voltage is greater than 8:1 and less than 9:1.