Patent ID: 11948521
Assignee: LG ELECTRONICS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 15:
16. An image display apparatus comprising:
a display device; and
a signal processor configured to output an image frame data to the display device,
wherein the display device comprising:
a backlight;
a first TFT panel including a plurality of switching elements and configured to control the amount of light penetration of the backlight for the respective areas corresponding to the plurality of switching elements;
a second TFT panel including a plurality of switching elements and configured to control the amount of penetration of light output from the first TFT panel for the respective areas corresponding to the plurality of switching elements; and
a color filter to filter the light output from the second TFT panel for each color,
wherein, while a first voltage is applied to a first switching element of the first TFT panel, a second voltage higher than the first voltage is applied to the first switching element of the first TFT panel in response to an object within an image frame data input to the display device;
while a third voltage is applied to a second switching element of the second TFT panel, a fourth voltage higher than the third voltage is applied to the second switching element of the second TFT panel in response to the object within the image frame data input to the display device; and
in response to movement of the object within the image frame data input to the display device, a fifth voltage higher than the second voltage is applied to the first switching element of the first TFT panel, and a sixth voltage higher than the fourth voltage is applied to the second switching element of the second TFT panel.