Image display device and system comprising same

A system comprising:

• a plurality of image display apparatuses including at least a first image display apparatus and a second image display apparatus;
• and
• a control device controlling the first image display apparatus and the second image display apparatus,
• wherein the control device:
• controls the first image display apparatus to display a first image,
• controls the second image display apparatus to display a second image,
• controls the first image display apparatus to perform an afterimage compensation for pixels included in a first display panel in the first image display apparatus,
• receives, from the first image display apparatus, data results of the afterimage compensation for pixels included in the first display panel, and
• controls the second image display apparatus to perform an afterimage compensation for pixels included in a second display panel in the second image display apparatus, based on the received data results of the afterimage compensation performed for the pixels included in the first display panel in the first image display apparatus.

An image display apparatus comprising:

• a display including a display panel;
• an external device interface configured to transmit and receive a signal to and from a control device controlling the image display apparatus and at least one other image display apparatus;
• and
• a controller configured to:
• display an image on the display corresponding to an image signal received from the control device,
• perform an afterimage compensation for pixels included in the display panel,
• determine whether a result of performing the afterimage compensation for the pixels included in the display panel satisfies a predetermined reference, and
• transmit a signal including data indicating a result of performing the afterimage compensation to the control device through the external device interface unit, when the result of performing the afterimage compensation satisfies the predetermined reference.

A control device for controlling at least a first image display apparatus and a second image display apparatus, the control device comprising:

• an external device interface configured to transmit and receive a signal to and from the first image display apparatus and the second image display apparatus;
• and
• a controller configured to:
• control the first image display apparatus to display a first image,
• control the second image display apparatus to display a second image,
• control the first image display apparatus to perform an afterimage compensation for pixels included in a first display panel in the first image display apparatus,
• receive, from the first image display apparatus, data results of the afterimage compensation for pixels included in the first display panel, and
• control the second image display apparatus to perform an afterimage compensation for pixels included in a second display panel in the second image display apparatus, based on the received data results of the afterimage compensation performed for the pixels included in the first display panel in the first image display apparatus.