A display apparatus including a housing; a display; a roller accommodated in the housing to rotate and roll or unroll the display; and a processor configured to in response to receiving a command to display content, control the roller to rotate and unroll the display from the housing so the display is drawn out and extended from the housing, and control the display to display an entire image of the content while simultaneously expanding a size of the entire image of the content as the display is being extended from the housing so a partial portion of the content is not blocked from being viewed as the display is drawn out and extended from the housing.

The present invention relates to an image display device and an operation method therefor. An image display device according to an embodiment of the present invention comprises a housing, a roller disposed inside the housing, and a plurality of pixels. The image display device includes: a display panel that can be wound on or unwound from the roller; and a control unit for controlling the operation of the roller so that the display panel rolls up or rolls down. The control unit can check the temperature of the display panel, and apply a main signal to at least one of the plurality of pixels according to the temperature of the display panel when the temperature of the display panel is less than a reference temperature, and control the operation of the roller when the temperature of the display panel is the reference temperature or higher. Various other embodiments are also possible.

For a node in which a difference between a base sensor value which is a sensor value obtained at certain time intervals and a first reference value which is a sensor value obtained when an organic EL element does not emit light in normal temperature state is greater than a threshold value, a correction value calculation circuit stores the product of a base computing value and a third reference value as a correction value in a correction value storage unit, the third reference value representing a ratio of the first reference value to a second reference value which is a sensor value obtained when the organic EL element emits light in normal temperature state, and the base computing value being obtained by providing the product of the third reference value and the base sensor value as an input value to a base computing value calculation circuit.

A touch sensing device includes first sensor electrodes disposed in a first area, second sensor electrodes disposed in a second area, first sensor lines each connected to the first sensor electrodes in the first area, and second sensor lines each connected to the second sensor electrodes in the second area. Each of the second sensor lines includes a first sub-sensor line disposed in the second area, and a second sub-sensor line disposed in the first area and the second area and connected to the first sub-sensor line.

A display device includes a display panel, a first line, a second line, a first driver, and a second driver. The display panel includes a first display area, a second display area, a third display area, and a fourth display area, which are sequentially arranged. The first display area and/or the second display area may be flexible. The second driver corresponds to the fourth display area, provides a first data voltage through the second line to the first display area during a first period, and provides a fourth data voltage to the fourth display area during a second period immediately following the first period. The first driver corresponds to the third display area, provides a second data voltage through the first line to the second display area during the second period, and provides a third data voltage to the third display area during the first period.

In one embodiment, a method for managing visual uniformity in a foldable display includes identifying a hinge angle of the foldable display, the hinge angle indicating a degree to which the foldable display is opened or closed; receiving surface curvature data from a plurality of sensors of the foldable display, the surface curvature data indicating a mechanical state of a surface of the foldable display; accessing a plurality of surface maps stored in a display database of the foldable display, each of the plurality of surface maps indicating one or more display settings associated with a respective mechanical state of the surface of the foldable display; retrieving the one or more display settings from the display database based on the hinge angle and the surface curvature data; and causing a plurality of pixels to illuminate using the one or more display settings.

An electronic device is provided. The electronic device includes a display including a plurality of display pixels, a memory, and at least one processor, wherein the at least one processor may be configured to drive the display by variably adjusting a first display region and a second display region in which visual information is to be displayed on the display, based on an operation state or a display structure state of the electronic device, calculate a difference in usage of the display between the first display region and the second display region, variably determine a size of a boundary compensation region between the first display region and the second display region, based on the difference in usage, and compensate for an image of the boundary compensation region.

Disclosed is a display device. The display device includes a display panel having a base layer, a circuit element layer disposed on the base layer, a display panel including a plurality of first pixels disposed in a first display area, and a plurality of second pixels disposed in a second display area adjacent to the first display area. The display device further includes a gate driver disposed in the second display area of the display panel and configured to drive the first and second pixels and a diffraction pattern layer including a plurality of second diffraction patterns disposed on the second pixels.

Systems and methods are provided to compensate image data for display on a curved display. A pixel uniformity compensation factor may be applied based on a pixel uniformity compensation factor map that is calibrated to the display panel while the display panel has a flat shape, and a panel curvature compensation factor may be applied when the image content is to be displayed while the display panel has a curved shape. The panel curvature compensation factor may be based on a panel curvature compensation factor map that is calibrated to the display panel after the display panel is bent from the flat shape to the curved shape.

Embodiments of the present application disclose time division display control methods and apparatus and display devices, wherein a time division display control method disclosed comprises: displaying a first image by a display device; and changing display pixel distribution of the display device at least once within a preset permitted staying duration of vision of human eyes and displaying the first image by the display device changed each time, to cause the displayed first images to be displayed in human eyes as a second image in an overlapped manner. According to the present application, utilization of display pixels of a display device and a display quality of at least a local part of an image can be improved, thereby better meeting diversified actual application demands of users.