Control panel, control method thereof and clothes treating apparatus having the same

A control panel of a clothes treating apparatus comprising:

• a panel body that defines an external appearance of the control panel;
• a light discharge unit that is located on the panel body and that includes at least one of characters, figures, or marks;
• light emission units that are located adjacent to the light discharge unit, that are located in a matrix comprising a plurality of light emission unit columns and a plurality of light emission rows, that are configured to emit light toward the light discharge unit, and that include a target light emission unit and a background light emission unit within a same light emission unit;
• and
• a control unit configured to control brightness of the emitted light from the light emission units,
• wherein the control unit, by controlling the target light emission unit, emits light from the target light emission unit that is brighter than light emitted from the background light emission unit by providing current that has a first duty cycle to the target light emission unit and current that has a second duty cycle to the background light emission unit, the first duty cycle and the second duty cycle being based on fractions of the duty cycle of current supplied to each of the plurality of light emission units, and
• wherein the control unit includes:
• a controller;
• a plurality of scan lines that are each configured to connect light emission units of a respective light emission unit column, each light emission column receiving substantially equal current through a respective scan line in successive intervals of substantially equal duration;
• a timer that is configured to connect the plurality of scan lines to the controller and that is configured to supply current to the plurality of scan lines according to a predetermined cycle;
• and
• a plurality of data lines that are each configured to connect light emission units of a respective light emission row and that are each configured to control a duty cycle in which a particular light emission unit receives a substantially equal current in a regular cycle through a particular scan line.