Rollable display device having variable data processing positions for pixels and data processing method thereof
The present disclosure relates to a display device capable of improving image processing capability by varying a spatial processing resolution of a bit depth of data according to change in a display area, and a display device according to an embodiment includes: a panel including a display area composed of a plurality of pixels and having a variable physical shape; a panel driver for driving the panel; and a timing controller for varying the area of a first display area in which an image is displayed in the display area according to change in the shape of the panel when the change in the shape of the panel is detected through a sensor and varying a distance between pixels on which compensation processing is performed in pixels corresponding to the first display area in response to the varied area of the first display area.
1. A display device, comprising:
a panel including a display area, the panel including a plurality of pixels and having a variable physical shape;
a panel driver for driving the panel; and
a timing controller for varying the area of a first display area in which an image is displayed in the display area according to change in the shape of the panel in response to detecting the change in the shape of the panel through a sensor and varying a distance between pixels in the first display that are selected based on the distance for compensation processing in response to the varied area of the first display area,
wherein the timing controller reduces the distance between the selected pixels that is used for the compensation processing when the area of the first display area decreases.
2. The display device of claim 1 , wherein the panel is a foldable panel or a rollable panel.
3. A display device, comprising:
a panel including a display area, the panel including a plurality of pixels and having a variable physical shape;
a panel driver for driving the panel; and
a timing controller for varying the area of a first display area in which an image is displayed in the display area according to change in the shape of the panel in response to detecting the change in the shape of the panel through a sensor and varying a distance between pixels in the first display that are selected based on the distance for compensation processing in response to the varied area of the first display area,
wherein the timing controller varies the distance between the selected pixels by changing a sampling position of compensation data downloaded from an external memory to an internal memory in response to the varied area of the first display area and compensating for data of the selected pixels using the downloaded compensation data.
4. A display device, comprising:
a panel including a display area, the panel including a plurality of pixels and having a variable physical shape;
a panel driver for driving the panel; and
a timing controller for varying the area of a first display area in which an image is displayed in the display area according to change in the shape of the panel in response to detecting the change in the shape of the panel through a sensor and varying a distance between pixels in the first display that are selected based on the distance for compensation processing in response to the varied area of the first display, wherein the timing controller includes:
a display area change detector for detecting change of the first display area according to the change in the shape of the panel;
a display area calculator for calculating the varied area of the first display area;
a data resolution calculator for calculating a data processing resolution corresponding to the calculated area of the first display area;
a memory address change processor for varying an address according to the calculated data processing resolution;
a data download processor for sampling compensation data from an external memory using the varied address and downloading the compensation data to an internal memory; and
a definition enhancement data processor for compensating for data of the selected pixels using the downloaded compensation data.
5. The display device of claim 4 , wherein the timing controller further includes a display area change monitor for monitoring the area of the first display area calculated by the display area calculator, and when the varied area of the first display area is maintained for a set period, the display area change monitor controls the data download processor to download the compensation data from the external memory to the internal memory.
6. A data processing method of a display device, comprising:
detecting change in the area of a display area in which an image is display according to change in a shape of a panel;
calculating the changed area of the display area according to change in the shape of the panel;
calculating a data processing resolution corresponding to the calculated display area;
sampling compensation data from an external memory and downloading the compensation data to an internal memory in response to the calculated data processing resolution; and
compensating for data of a corresponding pixel using the compensation data downloaded to the internal memory.
7. The data processing method of claim 6 , wherein, when the area of the display area decreases, the data processing resolution increases, there to enhance both a resolution of the downloaded compensation data and a resolution of the compensated data.
8. The data processing method of claim 6 , further comprising monitoring the calculated area of the display area, and when the changed area of the display area is maintained for a set period, controlling the compensation data that the compensation data is downloaded from the external memory to the internal memory.