Image display apparatus capable of enhancing a grayscale expression power when displaying an image
AssigneeLG Electronics Inc.
InventorByungwoo Ryu
Life of this patent
Estimating the term…
Abstract
Disclosed is an image display apparatus. An image display apparatus according to an embodiment of the present disclosure includes: a panel; a signal processing device configured to process an input image and output an image signal; and a timing controller configured to drive the panel based on the image signal from the signal processing device, and the signal processing device is configured to output a data enable signal divided into an active period and a blank period, and change a length of the active period or a length of the blank interval in response to a data bit of the image signal being changed. Accordingly, a grayscale expression power when displaying an image can be enhanced.
Claims17
An image display apparatus comprising:
- a panel;
- a signal processing device configured to process an input image and output an image signal;
- and
- a timing controller configured to drive the panel based on the image signal from the signal processing device,
- wherein the signal processing device is configured to output a data enable signal divided into an active period and a blank period, and change a length of the active period or a length of the blank period in response to a data bit of the image signal being changed, and
- wherein the signal processing device is configured to:
- output a first data enable signal corresponding to a first active period and a first blank period to display an image having a peak luminance of a first level in the panel, and
- output a second data enable signal corresponding to a second active period and a second blank period to display an image having a peak luminance of a second level higher than the first level in the panel, and
- wherein a length of the second active period is greater than a length of the first active period and a length of the second blank period is less than a length of the first blank period.
An image display apparatus comprising:
- a panel;
- a signal processing device configured to process an input image and output an image signal;
- and
- a timing controller configured to drive the panel based on the image signal from the signal processing device,
- wherein the signal processing device is configured to:
- output a first data enable signal corresponding to a first active period and a first blank period in response to an image display mode being a normal mode, and
- output a second data enable signal corresponding to a second active period and a second blank period in response to the image display mode being a game mode,
- wherein a length of the second active period is greater than a length of the first active period and a length of the second blank period is less than a length of the first blank period, and
- wherein the signal processing device is configured to control a data bit of R, G, and B data output in response to the game mode to be greater than a data bit of R, G, and B data output in response to the normal mode.
An image display apparatus comprising:
- a panel;
- a signal processing device configured to process an input image and output an image signal;
- and
- a timing controller configured to drive the panel based on the image signal from the signal processing device,
- wherein the signal processing device is configured to:
- output a data enable signal divided into an active period and a blank period,
- change a length of the active period or a length of the blank period in response to a data enable variation mode, and
- fix the length of the active period or the length of the blank period in response to a data enable fixation mode,
- wherein the signal processing device is configured to:
- output a first data enable signal corresponding to a first active period and a first blank period in response to the data enable variation mode and an image display mode being a normal mode, and
- output a second data enable signal corresponding to a second active period and a second blank period in response to the data enable variation mode and the image display mode being a game mode, and
- wherein a length of the second active period is greater than a length of the first active period and a length of the second blank period is less than a length of the first blank period.
Dependencies are inferred from the claim text.