A calibrator configured to calibrate a color of a screen of a display device comprising: an absorption plate formed of a transformable material, comprising a bottom surface configured to be attached to the screen of the display device in a vacuum absorption method; control portion configured to lift a first portion of the absorption plate to thereby leave a space between the first portion of the absorption plate and the screen of the display device, the control portion comprising: a control bracket comprising a control plate coupled to a first portion of the absorption plate and a control rod extended from the control plate in a vertical direction; and a movable frame coupled to an end of the control rod and configured to move in a vertical direction of the display device; a fixed portion configured to press a second portion of the absorption plate; a rotary portion configured to be rotatably coupled to the fixed portion in a horizontal direction of the display device and configured to move the control portion in a vertical direction of the display device, when the rotary portion is rotated; and a circuit unit mounted in the fixed portion to calibrate the color of the display device, characterized in that the absorption plate is formed in a donut shape having a hole formed in a central portion, and the first portion is formed in a ring shape provided in a middle portion of the donut shape of the absorption plate, and the second portion is formed in an inner circumference and an outer circumference of the donut shape of the absorption plate, and wherein the circuit unit comprises a control board having a sensor configured to calibrate a color of the screen of the display device mounted therein and the sensor is exposed via the hole. an absorption plate formed of a transformable material, comprising a bottom surface configured to be attached to the screen of the display device in a vacuum absorption method; control portion configured to lift a first portion of the absorption plate to thereby leave a space between the first portion of the absorption plate and the screen of the display device, the control portion comprising: a control bracket comprising a control plate coupled to a first portion of the absorption plate and a control rod extended from the control plate in a vertical direction; and a movable frame coupled to an end of the control rod and configured to move in a vertical direction of the display device; a control bracket comprising a control plate coupled to a first portion of the absorption plate and a control rod extended from the control plate in a vertical direction; and a movable frame coupled to an end of the control rod and configured to move in a vertical direction of the display device; a fixed portion configured to press a second portion of the absorption plate; a rotary portion configured to be rotatably coupled to the fixed portion in a horizontal direction of the display device and configured to move the control portion in a vertical direction of the display device, when the rotary portion is rotated; and a circuit unit mounted in the fixed portion to calibrate the color of the display device, characterized in that the absorption plate is formed in a donut shape having a hole formed in a central portion, and the first portion is formed in a ring shape provided in a middle portion of the donut shape of the absorption plate, and the second portion is formed in an inner circumference and an outer circumference of the donut shape of the absorption plate, and wherein the circuit unit comprises a control board having a sensor configured to calibrate a color of the screen of the display device mounted therein and the sensor is exposed via the hole.