Abstract: An electronic device includes: a first housing including a first surface and a second surface opposite to the first surface; a second housing including a third surface and a fourth surface opposite to the third surface; a first display on the first and third surfaces; a second display on the second surface; a first inertial sensor in the first housing; a second inertial sensor in the second housing; and at least one processor. The at least one processor is configured to: identify, using the first and second inertial sensors, that an angle between a first direction in which the first surface faces and a second direction in which the third surface faces is within a designated range, identify that first data, which is related to a posture of the electronic device and is identified using the second inertial sensor, is within a first range, and change a display mode of the second display.

Abstract: A display device includes a display panel and a display driver circuit. The display driver circuit includes a driving controller configured to receive an image signal at a variable frame rate, and output image data obtained through by converting of the image signal in response to a synchronization signal. The driving controller includes a light emitting control block. The light emitting control block compares a reference period of a reference cycle section of a light emitting cycle of the display panel, which is preset, with a display period of the present frame section, changes the reference period to an adjusted period depending on a comparison result, and outputs a driving control signal for controlling the display panel to emit light during an adjusted cycle section in which the display panel has the adjusted period from a starting time point of a next frame section.

Abstract: An organic light emitting display device comprising: a source device configured to output image data; and a sink device configured to perform a displaying operation based on the image data, wherein the source device is configured to change a frame rate of an image frame composing the image data while the displaying operation is performed, wherein the sink device is configured to change a frame rate of a panel driving frame for the displaying operation as the frame rate of the image frame is changed, and wherein the source device is configured to change the frame rate of the image frame while satisfying a condition in which an emission duty ratio of the panel driving frame is not changed.

Abstract: An organic light emitting display device comprising: a source device configured to output image data; and a sink device configured to perform a displaying operation based on the image data, wherein the source device is configured to change a frame rate of an image frame composing the image data while the displaying operation is performed, wherein the sink device is configured to change a frame rate of a panel driving frame for the displaying operation as the frame rate of the image frame is changed, and wherein the source device is configured to change the frame rate of the image frame while satisfying a condition in which an emission duty ratio of the panel driving frame is not changed.

Abstract: An organic light emitting display device comprising: a source device configured to output image data; and a sink device configured to perform a displaying operation based on the image data, wherein the source device is configured to change a frame rate of an image frame composing the image data while the displaying operation is performed, wherein the sink device is configured to change a frame rate of a panel driving frame for the displaying operation as the frame rate of the image frame is changed, and wherein the source device is configured to change the frame rate of the image frame while satisfying a condition in which an emission duty ratio of the panel driving frame is not changed.

Abstract: An organic light emitting display device comprising: a source device configured to output image data; and a sink device configured to perform a displaying operation based on the image data, wherein the source device is configured to change a frame rate of an image frame composing the image data while the displaying operation is performed, wherein the sink device is configured to change a frame rate of a panel driving frame for the displaying operation as the frame rate of the image frame is changed, and wherein the source device is configured to change the frame rate of the image frame while satisfying a condition in which an emission duty ratio of the panel driving frame is not changed.

Abstract: An organic light emitting display device comprising: a source device configured to output image data; and a sink device configured to perform a displaying operation based on the image data, wherein the source device is configured to change a frame rate of an image frame composing the image data while the displaying operation is performed, wherein the sink device is configured to change a frame rate of a panel driving frame for the displaying operation as the frame rate of the image frame is changed, and wherein the source device is configured to change the frame rate of the image frame while satisfying a condition in which an emission duty ratio of the panel driving frame is not changed.

Abstract: An organic light emitting diode (OLED) display device includes a display panel including a plurality of pixels, and a panel driver configured to drive the display panel. The panel driver drives the display panel at a frame frequency corresponding to 1/N of an emission frequency such that each frame period corresponds to an N multiple of an emission period, where N is an integer greater than 1. The panel driver gradually decreases the frame frequency of the display panel in a case where input image data are not received and gradually increases the frame frequency of the display panel in a case where the input image data are received.

Abstract: An organic light emitting display device comprising: a source device configured to output image data; and a sink device configured to perform a displaying operation based on the image data, wherein the source device is configured to change a frame rate of an image frame composing the image data while the displaying operation is performed, wherein the sink device is configured to change a frame rate of a panel driving frame for the displaying operation as the frame rate of the image frame is changed, and wherein the source device is configured to change the frame rate of the image frame while satisfying a condition in which an emission duty ratio of the panel driving frame is not changed.

Abstract: An organic light emitting display device comprising: a source device configured to output image data; and a sink device configured to perform a displaying operation based on the image data, wherein the source device is configured to change a frame rate of an image frame composing the image data while the displaying operation is performed, wherein the sink device is configured to change a frame rate of a panel driving frame for the displaying operation as the frame rate of the image frame is changed, and wherein the source device is configured to change the frame rate of the image frame while satisfying a condition in which an emission duty ratio of the panel driving frame is not changed.

Abstract: A display device includes a source device to output image data in a normal mode and in a re-synchronization mode, and refrain from outputting the image data in a panel self-refresh mode, and a sink device to perform a displaying operation based on the image data in the normal mode, store the image data at a time when an operating mode is changed from the normal mode to the PSR mode, perform the displaying operation based on the still image data in the PSR mode, and perform a frame-timing synchronization operation in the re-synchronization mode in response to a PSR-exiting command, wherein the frame-timing synchronization operation includes a first period in which a length-change of a vertical blank period is measured, a second period in which a temporary panel on-off clock is determined, and a third period in which the temporary panel on-off clock is applied to the adjustment-target frame.

Abstract: An organic light emitting display device comprising: a source device configured to output image data; and a sink device configured to perform a displaying operation based on the image data, wherein the source device is configured to change a frame rate of an image frame composing the image data while the displaying operation is performed, wherein the sink device is configured to change a frame rate of a panel driving frame for the displaying operation as the frame rate of the image frame is changed, and wherein the source device is configured to change the frame rate of the image frame while satisfying a condition in which an emission duty ratio of the panel driving frame is not changed.

Abstract: A display device includes a source device to output image data in a normal mode and in a re-synchronization mode, and refrain from outputting the image data in a panel self-refresh mode, and a sink device to perform a displaying operation based on the image data in the normal mode, store the image data at a time when an operating mode is changed from the normal mode to the PSR mode, perform the displaying operation based on the still image data in the PSR mode, and perform a frame-timing synchronization operation in the re-synchronization mode in response to a PSR-exiting command, wherein the frame-timing synchronization operation includes a first period in which a length-change of a vertical blank period is measured, a second period in which a temporary panel on-off clock is determined, and a third period in which the temporary panel on-off clock is applied to the adjustment-target frame.

Abstract: An image display apparatus includes a display panel that displays an image and a switching panel operated in a two-dimensional mode or three-dimensional mode such that the image is perceived as a two-dimensional mode or three-dimensional image on the display panel. The switching panel includes a plurality of unit devices. Each of the unit devices includes a first zone disposed at one side of a center axis of the unit device and a second zone disposed at the other side of the center axis. Each of the first zone and the second zone includes a plurality of electrodes, respectively. The plurality of electrodes do not overlap the center axis.

Abstract: An image display apparatus includes a display panel that displays an image and a switching panel operated in a two-dimensional mode or three-dimensional mode such that the image is perceived as a two-dimensional mode or three-dimensional image on the display panel. The switching panel includes a plurality of unit devices. Each of the unit devices includes a first zone disposed at one side of a center axis of the unit device and a second zone disposed at the other side of the center axis. Each of the first zone and the second zone includes a plurality of electrodes, respectively. The plurality of electrodes do not overlap the center axis.

Abstract: A three-dimensional image display device includes: a display panel which includes a first pixel and a second pixel and displays a frame image including a positive frame image including a first right-eye image and a first left-eye image displayed in the first and second pixels, respectively, and a negative frame image including a second left-eye image and a second right-eye image displayed in the first and second pixels, respectively; and a liquid crystal lens panel disposed on the display panel and which provides the first and second right-eye images to a right eye of a viewer and provides the first and second left-eye images to a left eye of the viewer, where the display panel sequentially displays the positive frame image and the negative frame image during an n-th frame period, and the negative frame image and the positive frame image during an (n+1)-th frame image.

Abstract: A three-dimensional image display device includes: a display panel which includes a first pixel and a second pixel and displays a frame image including a positive frame image including a first right-eye image and a first left-eye image displayed in the first and second pixels, respectively, and a negative frame image including a second left-eye image and a second right-eye image displayed in the first and second pixels, respectively; and a liquid crystal lens panel disposed on the display panel and which provides the first and second right-eye images to a right eye of a viewer and provides the first and second left-eye images to a left eye of the viewer, where the display panel sequentially displays the positive frame image and the negative frame image during an n-th frame period, and the negative frame image and the positive frame image during an (n+1)-th frame image.