Patent Publication Number: US-11663977-B2

Title: Display device

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     The application claims priority to and the benefit of Korean Patent Application No. 10-2021-0041338, filed Mar. 30, 2021, which is hereby incorporated by reference for all purposes as if fully set forth herein. 
     BACKGROUND 
     1. Field 
     The present disclosure relates to a display device, and more particularly, to a display device capable of controlling output of a scan signal, conversion of image data, and output of a data signal in response to partial scan driving. 
     2. Description of the Related Art 
     A display device includes a display panel including pixels and a driver driving the display panel. Each of the pixels emits light with a luminance corresponding to a data signal provided through a corresponding data line in response to a scan signal provided through a scan line. 
     In order to reduce power consumption of an electronic device and a display device, when low power is required, such as when displaying a static image, an image can be displayed by driving at a low frequency of less than 60 Hz. Thus, researches are being conducted to improve power consumption by varying a driving frequency according to a type of image, and to minimize deterioration in image quality when driving at the low frequency. 
     SUMMARY 
     An object of the present disclosure is to provide a display device that controls output of a scan signal, conversion of image data, and output of a data signal in response to partial scan driving. 
     However, objects of the present disclosure are not limited to the above-described object, and may be variously extended without departing from the spirit and scope of the present disclosure. 
     In order to achieve the object of the present disclosure, a display device according to embodiments of the present disclosure may include a display panel driven in one of a first mode displaying an image at a first frequency and a second mode displaying an image at a second frequency lower than the first frequency; a scan driver sequentially supplying a scan signal for writing data in the first mode to all pixel rows during a first frame corresponding to the first frequency; a controller generating image data in which input image data is rearranged based on the first mode or the second mode; and a data driver converting the image data into data signals and supplying the data signals to output channels. In the second mode, the scan driver may supply the scan signal to some pixel rows, respectively, during writing periods of a second frame corresponding to the second frequency, and stop supplying the scan signal during power saving periods of the second frame. Under the same input grayscale condition, a change in voltage of the data signals output to a first output channel among the output channels during the first frame and a change in voltage of the data signals output to the first output channel during the second frame may be different. 
     According to an embodiment, the controller may generate the image data according to an order in which the pixel rows are selected during the writing periods of the second mode. 
     According to an embodiment, the display device may further include a gamma generator providing a first gamma set corresponding to a first color, a second gamma set corresponding to a second color, and a third gamma set corresponding to a third color to the data driver. 
     According to an embodiment, the image data of the first frame mat be arranged in a first arrangement type, and the image data of the second frame may be arranged in a second arrangement type. 
     According to an embodiment, the data driver may apply the first to third gamma sets to the image data in correspondence with the first arrangement type in the first mode, and the data driver may apply the first to third gamma sets to the image data in correspondence with the second arrangement type in the second mode. 
     According to an embodiment, the data driver may stop outputting the data signals during the power saving periods. 
     According to an embodiment, each of the writing periods may be shorter than a period of the first frame. 
     According to an embodiment, the display panel may include a first pixel row in which a first pixel emitting light of a first color, a second pixel emitting light of a second color, a third pixel emitting light of a third color, and the second pixel are arranged in a first direction; and a second pixel row in which the third pixel, the second pixel, the first pixel, and the second pixel are arranged in the first direction. A pixel arrangement of the first pixel row and a pixel arrangement of the second pixel row may be alternately repeated in a second direction. 
     According to an embodiment, the writing periods may include first to k-th writing periods (where k is an integer greater than 1), and the power saving periods may include first to k-th power saving periods. 
     According to an embodiment, the scan driver may supply the scan signal to different pixel rows in each of the first to k-th writing periods. 
     According to an embodiment, an arrangement of the image data corresponding to the first writing period of the first output channel may be different from an arrangement of the image data corresponding to the second writing period of the first output channel. 
     According to an embodiment, under the same input grayscale condition, a change in voltage of the data signals output to the first output channel in the first writing period may be different from a change in voltage of the data signals output to the first output channel in the second writing period. 
     According to an embodiment, a second output channel among the output channels may be connected to the second pixel, and the data signals corresponding to the second color may be output to the second output channel during the period of the first frame and the writing periods. 
     According to an embodiment, the display device may further include a data divider connecting the output channels and data lines connected to pixel columns of the display panel to 1:j (wherein j is an integer greater than 1). 
     According to an embodiment, the data divider may alternately supply the data signals supplied from the first output channel to a first data line and a third data line, and the data divider may alternately supply the data signals supplied from the second output channel to a second data line and a fourth data line. 
     According to an embodiment, the controller may include a static image determiner detecting a static image by comparing the input image data of successive frames; a frequency determiner activating the second mode based on a detected static image and determining the second frequency; a partial scan controller generating a scan control signal and a data control signal for controlling the scan driver and the data driver in the writing periods and the power saving periods based on the second frequency; and a data rearranger rearranging the input image data based on the second frequency. 
     According to an embodiment, the controller may further include a storage storing option values including structure information and frequency information of the display panel. The frequency determiner may determine the second frequency based on a value loaded from the storage, and the data rearranger may rearrange the input image data based on the value loaded from the storage and the second frequency. 
     According to an embodiment, the partial scan controller may generate configuration data for determining an operation option of the data driver based on the second frequency and the structure information of the display panel, and the configuration data may include arrangement information and gamma application information of the image data corresponding to the second frequency. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The accompanying drawings, which are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification, illustrate example embodiments of the present disclosure, and, together with the description, serve to explain principles of the present disclosure. 
         FIG.  1    is a block diagram illustrating a display device according to embodiments of the present disclosure. 
         FIG.  2    is a diagram illustrating an example of a display panel included in the display device of  FIG.  1   . 
         FIG.  3    is a diagram illustrating an example of an operation of a scan driver included in the display device of  FIG.  1   . 
         FIG.  4    is a diagram for explaining an example of data signals supplied to data lines in response to the operation of the scan driver of  FIG.  3   . 
         FIG.  5    is a diagram schematically illustrating a change in luminance when driving at 30 Hz in  FIG.  3   . 
         FIG.  6    is a block diagram illustrating an example of a controller included in the display device of  FIG.  1   . 
         FIG.  7    is a diagram illustrating an example of an operation in a second mode of the scan driver included in the display device of  FIG.  1   . 
         FIG.  8    is a diagram illustrating an example of an operation in a second mode of the scan driver included in the display device of  FIG.  1   . 
         FIG.  9    is a diagram for explaining an example of data signals supplied to data lines in response to the operation of the scan driver in  FIG.  8   . 
         FIG.  10    is a block diagram illustrating a display device according to embodiments of the present disclosure. 
         FIG.  11    is a diagram illustrating an example of a display panel and a data divider included in the display device of  FIG.  10   . 
         FIG.  12    is a diagram for explaining an example of data signals supplied to output channels of  FIG.  11   . 
         FIG.  13    is a diagram for explaining an example of data signals supplied to output channels of  FIG.  11   . 
         FIG.  14    is a block diagram illustrating an example of a controller included in the display device of  FIG.  10   . 
         FIG.  15    is a diagram illustrating an example of data outputs corresponding to setting values included in a storage of  FIG.  14   . 
     
    
    
     DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS 
     Hereinafter, preferred embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. The same reference numerals are used for the same elements in the drawings, and duplicate descriptions for the same elements are omitted. 
       FIG.  1    is a block diagram illustrating a display device according to embodiments of the present disclosure. 
     Referring to  FIG.  1   , a display device  1000  may include a display panel  100 , a controller  200 , a scan driver  300 , and a data driver  400 . The display device  1000  may further include a gamma generator  500 . 
     The display device  1000  may be a self-light emitting display device including a plurality of self-light emitting elements. For example, the display device  1000  may be an organic light emitting display device including organic light emitting elements, a display device including inorganic light emitting elements, or a display device including light emitting elements composed of a combination of inorganic and organic materials. However, this is an example, and the display device  1000  may be implemented as a liquid crystal display device, a plasma display device, a quantum dot display device, or the like. 
     The display device  1000  may be a flat panel display device, a flexible display device, a curved display device, a foldable display device, or a bendable display device. In addition, the display device  1000  may be applied to a transparent display device, a head-mounted display device, a wearable display device, or the like. 
     The display panel  100  may include scan lines S 1  to Sn, data lines D 1  to Dm, and a plurality of pixels PX, where n and m may be integers greater than 1. The pixels PX may be electrically connected to the data lines D 1  to Dm and the scan lines S 1  to Sn. Pixels (or pixel lines) that are simultaneously controlled by one scan line and receive data signals substantially simultaneously may be understood as one pixel row. For example, pixels that receive a data signal based on a scan signal supplied to a first scan line S 1  may be understood as a first pixel row. 
     According to an embodiment, at least one scan line may be connected to each of the pixels PX. Although not shown, the pixels PX may be additionally connected to an emission control line. 
     The pixels PX may emit light with grayscale and luminance corresponding to the data signal supplied from the data lines D 1  to Dm. Each of the pixels PX may include a driving transistor and at least one switching transistor. Each of the pixels PX may include an organic light emitting element, an inorganic light emitting element, or a light emitting element composed of a combination of organic and inorganic materials. 
     In an embodiment, the display panel  100  may be driven in one of a first mode displaying an image at a first frequency and a second mode displaying an image at a second frequency. For example, the first mode may be a driving mode for displaying a moving image, and the second mode may be a driving mode for displaying a static image or displaying an image with low power. 
     In an embodiment, in the first mode, the moving image may be displayed at a driving frequency of the first frequency. For example, the first frequency may have a frequency value of 60 Hz or higher. However, this is an example, and the first frequency is not limited thereto. For example, the first frequency in the first mode may be set to a value smaller than 60 Hz (for example, 24 Hz or more) according to a driving condition or a setting. 
     In the second mode, an image may be displayed at a driving frequency less than or equal to the first frequency. For example, the second mode may include a power saving mode, a static image mode, an always on display (AOD) mode, and the like, and the second frequency, which is the driving frequency, may have a frequency value of 30 Hz or less. However, this is an example, and the second frequency may have a value greater than 30 Hz according to a driving condition, a setting, or a relationship with the first frequency. 
     The controller  200  may function as a timing controller. In an embodiment, the controller  200  may generate a scan control signal SCS and a data control signal DCS based on clock signals and control signals supplied from outside. The scan control signal SCS may be supplied to the scan driver  300 , and the data control signal DCS may be supplied to the data driver  400 . In addition, the controller  200  may rearrange input image data RGB supplied from the outside and supply the rearranged image data to the data driver  400 . 
     The scan control signal SCS may include a scan start pulse and scan clock signals. The scan start pulse may control the first timing of the scan signal. The scan clock signals may be used to shift the scan start pulse. 
     The data control signal DCS may include a source start pulse and data clock signals. The source start pulse may control a sampling start point of image data DATA 1  rearranged. The data clock signals may be used to control a sampling operation. 
     The controller  200  may generate the image data DATA 1  in which the input image data RGB is rearranged in response to the first mode or the second mode. The input image data RGB provided from the outside may be provided serially in a repeating order of red-green-blue. The controller  200  may rearrange the input image data RGB to suit the pixel arrangement and driving method of the display panel. 
     An order in which pixel rows are selected in the second mode may be set differently from an order in which the pixel rows are selected in the first mode (for example, a method in which the scan signal is supplied to write data). For example, in the first mode, the data signals may be sequentially written from a first pixel row to a last pixel row during one frame. In the second mode, one frame may include a plurality of writing periods and a plurality of power saving periods. During each writing period, only some pixel rows may be selected so that the data signals may be written. Accordingly, the image data DATA 1  may be arranged in a first arrangement type in the first mode, and the image data DATA 1  may be arranged in a second arrangement type in the second mode. For example, the controller  200  may generate the image data DATA 1  in which the input image data RGB is rearranged according to an order in which the pixel rows are selected in the writing periods of the second mode. 
     Hereinafter, a writing period may be understood as a period in which the data signal is supplied to the display panel  100  by the scan signal, and a power saving period may be understood as a period in which supply of the scan signal and the data signal for writing data to the display panel  100  is stopped. 
     The scan driver  300  may supply the scan signal to the scan lines S 1  to Sn corresponding to the pixel rows based on the scan control signal SCS. For example, the scan driver  300  may sequentially supply the scan signal to the scan lines S 1  to Sn. When the scan signal is sequentially supplied, the pixels PX may be selected in units of horizontal lines (or units of pixel rows). 
     In the first mode, the scan driver  300  may sequentially supply the scan signal to all pixel rows (the scan lines S 1  to Sn) during a first period corresponding to the first frequency. The first period may correspond to the total time in which one frame of the first mode progresses. 
     In the second mode, the scan driver  300  may supply the scan signal to some pixel rows, respectively, during the writing periods, and may stop supplying the scan signal during the power saving periods. For example, when one frame includes a first writing period and a second writing period, the scan signal for writing data may be sequentially supplied to odd-numbered pixel rows during the first writing period, and the scan signal for writing data may be sequentially supplied to even-numbered pixel rows during the second writing period. In this way, different pixel rows may be selected in each of the writing periods to write data. 
     The data driver  400  may receive the data control signal DCS and the image data DATA 1 . The data driver  400  may supply analog data signals converted from the image data DATA 1  to output channels CH 1  to CHm in response to the data control signal DCS. In the embodiment of  FIG.  1   , the output channels CH 1  to CHm may correspond to the data lines D 1  to Dm on a one-to-one basis. Hereinafter, in describing  FIGS.  1 ,  2 ,  3 ,  4 ,  5 ,  6 ,  7 ,  8 , and  9   , the output channels CH 1  to CHm may be understood to be the same as the data lines D 1  to Dm. 
     The data signal supplied to the data lines D 1  to Dm may be supplied to the pixels PX selected by the scan signal. To this end, the data driver  400  may supply the data signal to the data lines D 1  to Dm so as to be synchronized with the scan signal. 
     In an embodiment, the data driver  400  may supply the data signals to the data lines D 1  to Dm during the writing periods. During the power saving periods, the data driver  400  may stop outputting the data signals. 
     In an embodiment, the gamma generator  500  may provide a first gamma set GM 1  corresponding to a first color, a second gamma set GM 2  corresponding to a second color, and a third gamma set GM 3  corresponding to a third color to the data driver  400 . For example, the first color, the second color, and the third color may be red, green, and blue, respectively. 
     Grayscale values of each data included in the image data DATA 1  may be expressed as 0 to 255 grayscales. The first gamma set GM 1  may include information on gamma voltages (or grayscale voltages) corresponding to grayscale values of red data. The second gamma set GM 2  may include information on gamma voltages (or grayscale voltages) corresponding to grayscale values of green data. The third gamma set GM 3  may include information on gamma voltages (or grayscale voltages) corresponding to grayscale values of blue data. 
     The data driver  400  may convert the grayscale values included in the image data DATA 1  into the data signals, which are analog gamma voltages, based on the first, second, and third gamma sets GM 1 , GM 2 , and GM 3 . 
     Since gamma curves are different according to red, green, and blue, voltages of the output data signals may be different even if the grayscales are the same. For example, when the red data, the green data, and the blue data are all 100 grayscales, voltages of the data signals output corresponding thereto may be different from each other. 
     Therefore, since the first arrangement type and the second arrangement type of the image data DATA 1  are different, under the same input grayscale condition, a change in voltage of the data signals output to a first output channel CH 1  in one frame of the first mode and a change in voltage of the data signals output to the first output channel CH 1  in one frame of the second mode may be different. 
     In an embodiment, the controller  200  may not generate signals for driving the data driver  400  such as the data control signal DCS during the power saving periods. 
     In an embodiment, at least some functions of the controller  200 , the data driver  400 , and the gamma generator  500  may be integrated into one driving circuit. For example, the driving circuit may be provided in the form of an integrated circuit that performs functions of the controller  200 , the data driver  400 , and the gamma generator  500 . 
       FIG.  2    is a diagram illustrating an example of a display panel included in the display device of  FIG.  1   . 
     Referring to  FIG.  2   , the display panel  100  may include a plurality of pixels PX 1 , PX 2 , and PX 3 , and scan lines S 1  to S 4  and data lines D 1  to D 4  connected to the pixels PX 1 , PX 2 , and PX 3 . 
       FIG.  2    shows a part of the display panel  100 . In  FIG.  2   , S 1  and D 1  are not limited to first signal lines of all scan lines and data lines, respectively. For example, first, second, third, and fourth scan lines S 1 , S 2 , S 3 , and S 4  may be understood as scan lines corresponding to successive pixel rows, and first, second, third, and fourth data lines D 1 , D 2 , D 3 , and D 4  may be understood as data lines corresponding to successive pixel columns. 
     The pixels PX may include a first pixel PX 1 , a second pixel PX 2 , and a third pixel PX 3 . The first pixel PX 1 , the second pixel PX 2 , and the third pixel PX 3  may emit light of a first color, a second color, and a third color, respectively. In an embodiment, the first color, the second color, and the third color may be different colors, respectively, and may be one of red, green, and blue. 
     For example, in a first pixel row (and the odd-numbered pixel rows) controlled by the first scan line S 1 , the pixels PX 1 , PX 2 , and PX 3  may be arranged in the order of a red pixel PR, a green pixel PG, a blue pixel PB, and a green pixel PG in a first direction DR 1 . In a second pixel row (and the even-numbered pixel rows) controlled by a second scan line S 2 , the pixels PX 1 , PX 2 , and PX 3  may be arranged in the order of the blue pixel PB, the green pixel PG, the red pixel PR, and the green pixel PG in the first direction DR 1 . 
     The pixel arrangement of the first pixel row and the pixel arrangement of the second pixel row may be alternately repeated in a second direction DR 2 . However, this is an example, and the pixel arrangement is not limited thereto. 
       FIG.  3    is a diagram illustrating an example of an operation of a scan driver included in the display device of  FIG.  1   .  FIG.  4    is a diagram for explaining an example of data signals supplied to data lines in response to the operation of the scan driver of  FIG.  3   . 
     Referring to  FIGS.  1 ,  2 ,  3 , and  4   , a driving mode and a driving frequency of the display device  1000  may be changed, and a scan driving method may be changed corresponding to the driving mode. 
     In an embodiment, a first mode MODE 1  or a second mode MODE 2  may be activated based on activation of a partial scan activation signal PS_EN. The partial scan activation signal PS_EN may be activated based on whether a static image is included. For example, when the static image is displayed, the partial scan activation signal PS_EN may be activated, and the display device  1000  may perform partial scan driving corresponding to the second mode MODE 2 . The partial scan driving may be activated for low frequency driving to reduce power consumption. The partial scan driving may scan all pixel rows by periodically supplying the scan signal for writing data to some different pixel rows within one frame. In the low frequency driving to reduce power consumption, the partial scan driving may be a technique for improving a side effect such as image flicker due to leakage of driving current within a pixel. 
     The controller  200  may control the scan driver  300  and the data driver  400  to drive in the second mode MODE 2 . In addition, the controller  200  may rearrange the input image data RGB into the image data DATA 1  of the second arrangement type according to the second mode MODE 2 . 
     In an embodiment, an image frame (first frames) in the first mode MODE 1  may be driven at a first frequency F 1  (for example, 60 Hz). Accordingly, a first frame may be driven during a time of about 16.7 ms. 
     The image data DATA 1  of the first arrangement type may include all image data from the first pixel in a first pixel row PR 1  to the last pixel in an n-th pixel row PRn (that is, the last pixel row). The image data DATA 1  of the first arrangement type may correspond to the pixel arrangement of  FIG.  2   . For example, the image data DATA 1  may have an arrangement of red-green-blue-green (for example, RGBG) corresponding to the first pixel row PR 1 , and may have an arrangement of blue-green-red-green (for example, BGRG) corresponding to a second pixel row PR 2 . 
     The scan driver  300  may supply a scan signal SCAN to pixel rows PR 1  to PRn (that is, the scan lines S 1  to Sn) in a general driving method. For example, one frame may be driven at 60 Hz, and the scan signal SCAN may be sequentially supplied to the first to n-th pixel rows PR 1  to PRn. The data driver  400  may output data signals corresponding to each of the first to n-th pixel rows PR 1  to PRn in units of pixel rows in synchronization with the scan signal. 
     In an embodiment, an image frame (second frames) in the second mode MODE 2  may be driven at a second frequency F 2  (for example, 30 Hz). A second frame may be driven during a time of about 33.3 ms. 
     The frame in the second mode MODE 2  may include first and second writing periods WP 1  and WP 2  and first and second power saving periods PSP 1  and PSP 2 . The writing periods WP 1  and WP 2  and the power saving periods PSP 1  and PSP 2  may be set to proceed alternately. 
     The image data DATA 1  of the second arrangement type may be rearranged to correspond to each of the writing periods WP 1  and WP 2 . 
     In an embodiment, the image data DATA 1  corresponding to a first writing period WP 1  may be image data of the odd-numbered pixel rows, and the image data DATA 1  corresponding to a second writing period WP 2  may be image data of the even-numbered pixel rows. 
     In the first writing period WP 1 , the scan signal SCAN for writing data to the odd-numbered pixel rows may be sequentially supplied. For example, the scan signal SCAN may be sequentially supplied to the first scan line S 1 , a third scan line S 3 , a fifth scan line S 5 , and a seventh scan line S 7 . The timing at which the scan signal is supplied to the first scan line S 1 , the third scan line S 3 , the fifth scan line S 5 , and the seventh scan line S 7  in the first writing period WP 1  may be substantially equal to the timing at which the scan signal is supplied to the first scan line S 1 , the second scan line S 2 , the third scan line S 3 , and the fourth scan line S 4  in the first mode. Therefore, in this case, compared to when driving at 60 Hz in the first mode MODE 1 , since the pixel rows to which the scan signal SCAN is supplied are reduced by half, the length of the first writing period WP 1  may correspond to about half of a time when the scan signal SCAN is supplied to all pixel rows when driving at 60 Hz. 
     In the second writing period WP 2 , the scan signal SCAN for writing data may be sequentially supplied to the even-numbered pixel rows. The length of the first writing period WP 1  may correspond to about half of the time when the scan signal SCAN is supplied to all pixel rows when driving at 60 Hz. 
     The time obtained by adding the first writing period WP 1  and the second writing period WP 2  may be substantially the same as the scan time when driving at 60 Hz. 
     In this way, the first writing period WP 1  for writing the data signals to the odd-numbered pixel rows and the second writing period WP 2  for writing the data signals to the even-numbered pixel rows may be repeated at a frequency of 30 Hz, respectively. Accordingly, it can be understood that the second mode MODE 2  is substantially driven at 30 Hz. 
     An image may be displayed in the first power saving period PSP 1  and the second power saving period PSP 2 . In the first power saving period PSP 1  and the second power saving period PSP 2 , supply of the scan signal SCAN and supply of the data signals may be stopped. In addition, some functions of the controller  200  for driving the scan driver  300  and the data driver  400  may also be deactivated. 
       FIG.  4    shows the image data corresponding to the data signals output to the first data line D 1  (for example, a first channel CH 1 ), the image data corresponding to the data signals output to the second data line D 2  (a second channel), the image data corresponding to the data signals output to the third data line D 3  (a third channel), and the image data corresponding to the data signals output to the fourth data line D 4  (a fourth channel) in each of the first mode MODE 1  and the second mode MODE 2 . In an embodiment, the controller  200  may generate (or arrange) the image data DATA 1  according to the order in which the pixel rows PR 1  to PRn are selected in the writing periods WP 1  and WP 2  of the second mode MODE 2 . 
     The data signal corresponding to the red pixel PR may be generated by applying the first gamma set GM 1  to red data R. The second gamma set GM 2  may be applied to green data G, and the third gamma set GM 3  may be applied to blue data B. 
     Meanwhile, an arrangement of the image data in a vertical direction in  FIG.  4    may be understood as an arrangement of the image data corresponding to each of the pixel rows. As described with reference to  FIG.  3   , for the partial scan driving in the second mode MODE 2 , the image data DATA 1  may be arranged differently from the first mode MODE 1 , and the data signals may be output differently. In the first mode MODE 1 , an arrangement of RGBG (corresponding to a first line L 1  (for example, the first pixel row)) and an arrangement of BGRG (corresponding to a second line L 2  (for example, the second pixel row)) may be repeated alternately for each pixel row. In the first writing period WP 1  of the second mode MODE 2 , only an arrangement of RGBG (corresponding to a third line L 3  (for example, the first pixel row) and a fourth line L 4  (for example, the third pixel row)) may be repeated. In the second writing period WP 2  of the second mode MODE 2 , only an arrangement of BGRG (corresponding to a fifth line L 5  (for example, the second pixel row) and a sixth line L 6  (for example, the fourth pixel row)) may be repeated. The supply of the image data DATA 1  and/or the data signals may be stopped during the first and second power saving periods PSP 1  and PSP 2 . 
     In an embodiment, in the pixel arrangement structure of  FIG.  2   , only the data signals corresponding to the green data G may be output to the second data line D 2  and the fourth data line D 4  (for example, even-numbered data lines). Accordingly, the second gamma set GM 2  may be applied to the green data G corresponding to the second data line D 2  and the fourth data line D 4 . 
     In the first mode MODE 1 , the red data R and the blue data B may be sequentially latched alternately in correspondence with the first data line D 1 , and the blue data B and the red data R may be sequentially latched alternately in correspondence with the third data line D 3 , contrary to the first data line D 1 . Accordingly, the first gamma set GM 1  and the third gamma set GM 3  may be alternately applied to data latched in correspondence with the first data line D 1 , and the third gamma set GM 3  and the first gamma set GM 1  may be alternately applied to data latched in correspondence with the third data line D 3 . 
     In an embodiment, the controller  200  may provide configuration data including mode information (the first mode or the second mode) and gamma application information to the data driver  400  during a vertical blank period of a frame. The data driver  400  may select a gamma set corresponding to the color of the image data DATA 1  based on the gamma application information included in the configuration data, and may convert a digital grayscale value corresponding to a position of a corresponding pixel into an analog data signal using the selected gamma set. That is, the gamma set corresponding to the color (arrangement type) of the image data DATA 1  may be appropriately selected according to the gamma application information. 
     In an embodiment, since only the odd-numbered pixel rows are selected in the first writing period WP 1 , the red data R may be continuously latched corresponding to the first data line D 1  in the first writing period WP 1 . In the first writing period WP 1 , the first gamma set GM 1  may be applied to the image data corresponding to the first data line D 1 . In addition, in the first writing period WP 1 , the blue data B may be continuously latched corresponding to the third data line D 3 . In the first writing period WP 1 , the third gamma set GM 3  may be applied to the image data corresponding to the third data line D 3 . 
     Since only the even-numbered pixel rows are selected in the second writing period WP 2 , in the second writing period WP 2 , the blue data B may be continuously latched corresponding to the first data line D 1 . In the second writing period WP 2 , the third gamma set GM 3  may be applied to the image data corresponding to the first data line D 1 . In addition, in the second writing period WP 2 , the red data R may be continuously latched corresponding to the third data line D 3 . In the second writing period WP 2 , the first gamma set GM 1  may be applied to the image data corresponding to the third data line D 3 . 
     As described above, an arrangement of the red data R, which is an arrangement of the image data DATA 1  corresponding to the first writing period WP 1  of the first data line D 1 , may be different from an arrangement of the blue data B, which is the arrangement of the image data DATA 1  corresponding to the second writing period WP 2  of the first data line D 1 . Similarly, an arrangement of the blue data B, which is the arrangement of the image data DATA 1  corresponding to the first writing period WP 1  of the third data line D 3 , may be different from an arrangement of the red data R, which is the arrangement of the image data DATA 1  corresponding to the second writing period WP 2  of the third data line D 3 . 
     Accordingly, in an embodiment, under the same input grayscale condition, a change in voltage of the data signals output to the first data line D 1  in the first writing period WP 1  may be different from a change in voltage of the data signals output to the first data line D 1  in the second writing period WP 2 . For example, when both the red data R and the blue data B have a value of 200 grayscales, a data signal of a first voltage level may be output to the first data line D 1  in the first writing period WP 1 , and a data signal of a second voltage level different from the first voltage level may be output to the first data line D 1  in the second writing period WP 2 . 
     In addition, output of the data signals (and the image data corresponding thereto) to odd-numbered data lines including the first data line D 1  and the third data line D 3  in the second mode MODE 2  may be different from output of the data signals (and the image data corresponding thereto) to the odd-numbered data lines in the first mode MODE 1 . In an embodiment, under the same input grayscale condition, a change in voltage of the data signals output to the first data line D 1  during the first frame of the first mode MODE 1  and a change in voltage of the data signals output to the first data line D 1  during the second frame of the second mode MODE 2  may be different. For example, in the first mode MODE 1 , a red data signal and a blue data signal may be alternately output to the first data line D 1  during one frame. In the second mode MODE 2 , the red data signal may be output to the first data line D 1  in the first writing period WP 1 , and the blue data signal may be output to the first data line D 1  in the second writing period WP 2 . In the first power saving period PSP 1  and the second power saving period PSP 2 , the output of the data signal may be stopped or a predetermined DC voltage may be output to the data lines D 1 , D 2 , D 3 , and D 4 . 
     As described above, in the display device  1000  and the driving method thereof according to the embodiments of the present disclosure, the image data DATA 1  may be arranged in different arrangement types in the first mode MODE 1  and the second mode MODE 2  in response to the partial scan driving in the second mode MODE 2 , and different gamma sets GM 1 , GM 2 , and GM 3  may be applied to outputs of the data signals corresponding to the odd-numbered data lines D 1  and D 3  in the first mode MODE 1  and the second mode MODE 2 . Accordingly, in the partial scan driving in the pixel arrangement of  FIG.  2   , incorrect reflection (mismatch) of blue gamma (red gamma) on the red data R (blue data B) can be prevented, and the data signals can be optimized and output in each of the first mode MODE 1  and the second mode MODE 2 . Accordingly, both power consumption and image quality can be improved during the partial scan driving. 
       FIG.  5    is a diagram schematically illustrating a change in luminance when driving at 30 Hz in  FIG.  3   . 
     Referring to  FIGS.  4  and  5   , a first luminance OD_L that is the luminance of the odd-numbered pixel rows and a second luminance EV_L that is the luminance of the even-numbered pixel rows may be detected differently by the partial scan driving. 
     The pixel may include a light emitting element that emits light by a driving current. The driving current may leak due to inherent characteristics of transistors included in the pixel. Accordingly, when the light emitting element emits light after data is written, the luminance may decrease over time due to leakage of the driving current. 
     As shown in  FIG.  4   , the first writing period WP 1  for the odd-numbered pixel rows and the second writing period WP 2  for the even-numbered pixel rows may be alternately repeated with each other in a cycle of 30 Hz. 
     Accordingly, the first luminance OD_L and the second luminance EV_L may be refreshed every about 33.4 ms, respectively. Accordingly, an average luminance AVG_L, which is an average of the first luminance OD_L and the second luminance EV_L, may exhibit a change in luminance similar to that of driving at 60 Hz. 
     In other words, the partial scan driving according to the embodiments of the present disclosure can improve the image flicker, which is a side effect of the low frequency driving. 
       FIG.  6    is a block diagram illustrating an example of a controller included in the display device of  FIG.  1   . 
     Referring to  FIGS.  3 ,  4 , and  6   , the controller  200  may include a static image determiner  220 , a frequency determiner  240 , a partial scan controller  260 , and a data rearranger  280 . That is, the static image determiner  220  may be electrically connected to the frequency determiner  240 , and the frequency determiner  240  may be electrically connected to both data rearranger  280  and the partial scan controller  260 . 
     The controller  200  may generate the image data DATA 1  based on the second mode MODE 2  (i.e., PS_EN). Furthermore, the controller  200  may control the scan driver  300  and the data driver  400  based on the second mode MODE 2  (i.e., PS_EN). 
     The static image determiner  220  may detect a static image (or a low-power image) by comparing the input image data RGB of successive frames. For example, the static image determiner  220  may determine whether an image is the static image or not by comparing a previous frame and the current frame. The static image determiner  220  may determine the static image based on a difference between a checksum of the input image data RGB of an (n−1)th frame and a checksum of the input image data RGB of an n-th frame, where n may be an integer greater than 1. For example, when the difference between the checksums is greater than a predetermined reference value, the static image determiner  220  may determine that the n-th frame includes a moving image (or the n-th frame is not the static image). When the checksums are equal (or the difference between the checksums is less than or equal to the predetermined reference value), the static image determiner  220  may determine that the n-th frame is the static image, and may output the partial scan activation signal PS_EN. 
     However, this is an example, and a method of determining the static image is not limited thereto. Whether or not the corresponding frame is the static image may be determined through various known algorithms and/or hardware configurations. 
     The frequency determiner  240  may activate the second mode MODE 2  based on the detected static image and determine the second frequency F 2 . In an embodiment, the frequency determiner  240  may generate a control signal CON for controlling the partial scan controller  260  and the data rearranger  280  in response to the partial scan activation signal PS_EN. The control signal CON may include information on the second frequency F 2 . The second frequency F 2  may be related to the number of writing periods, information on pixel rows selected for each of the writing periods, and an arrangement (the gamma application information) of the image data DATA 1  corresponding to each of the writing periods. In an embodiment, the second frequency F 2  may be a preset value. Furthermore, the second frequency F 2  may vary depending on a structure of the display panel  100  and the like. 
     The partial scan controller  260  may generate the scan control signal SCS and the data control signal DCS for controlling driving of the scan driver  300  and the data driver  400  in the writing periods WP 1  and WP 2  and the power saving periods PSP 1  and PSP 2 , respectively, based on the second frequency F 2 . 
     Furthermore, the partial scan controller  260  may generate configuration data CONF including the gamma application information corresponding to the image data DATA 1  input to the data driver  400  according to a mode based on the second frequency F 2 . For example, as shown in  FIG.  4   , in response to the configuration data CONF, the data driver  400  may use the gamma sets GM 1 , GM 2 , and GM 3  to suit different arrangement types of the image data DATA 1  of the first mode MODE 1  or the second mode MODE 2 . Accordingly, in the partial scan driving in the second mode MODE 2 , an error in which the blue gamma is applied to the red data R and an error in which the red gamma is applied to the blue data B can be prevented. 
     The data rearranger  280  may rearrange the input image data RGB based on the second frequency F 2  in the second mode MODE 2 . The image data DATA obtained by rearranging the input image data RGB may be provided to the data driver  400 . In an embodiment, the data rearranger  280  may output the image data DATA 1  as described with reference to  FIG.  4   . 
       FIG.  7    is a diagram illustrating an example of an operation in a second mode of the scan driver included in the display device of  FIG.  1   . 
     In  FIG.  7   , the same reference numerals may be used for the components described with reference to  FIGS.  3  and  4   , and duplicate descriptions of these components will be omitted. Meanwhile, in  FIG.  7   , a description will be made on the premise that the driving frequency (the first frequency) in the first mode MODE 1  is set to 60 Hz. 
     Referring to  FIGS.  1 ,  3 ,  4 , and  7   , in the second mode MODE 2 , the partial scan driving in a frame  1 FRAME may be performed at the driving frequency (the second frequency) of 15 Hz. The frame  1 FRAME may be driven during a time of about 66.7 ms. 
     Since the second frequency corresponds to ¼ of the first frequency, the frame  1 FRAME may include first to fourth writing periods WP 1 , WP 2 , WP 3 , and WP 4  and first to fourth power saving periods PSP 1 , PSP 2 , PSP 3 , and PSP 4 . In an embodiment, the length of each of the first to fourth writing periods WP 1 , WP 2 , WP 3 , and WP 4  may correspond to about ¼ of a time when the scan signal SCAN is supplied to all pixel rows when driving at 60 Hz. Correspondingly, lengths of the first to fourth power saving periods PSP 1 , PSP 2 , PSP 3 , and PSP 4  may increase. 
     As described above, as an image driving frequency decreases, the number of times the writing period and the power saving period are repeated within one frame may increase. Furthermore, as the image driving frequency decreases, the length of each of the writing periods WP 1  to WP 4  may decrease, and the length of each of the power saving periods PSP 1 , PSP 2 , PSP 3 , and PSP 4  may increase. Therefore, the effect of reducing power consumption in the low frequency driving can be maximized. 
     Meanwhile, since the pixel rows selected in the first writing period WP 1  and the third writing period WP 3  (that is, (4i−3)th pixel rows and (4i−1)th pixel rows, where i may be an integer greater than 0) are the odd-numbered pixel rows, driving of the first writing period WP 1  and the third writing period WP 3  may be substantially equal to the driving of the first writing period WP 1  of  FIGS.  3  and  4   . Since the pixel rows selected in the second writing period WP 2  and the fourth writing period WP 4  (that is, (4i−2)th pixel rows and 4i-th pixel rows) are the even-numbered pixel rows, driving of the second writing period WP 2  and the fourth writing period WP 4  may be substantially equal to the driving of the second writing period WP 2  of  FIGS.  3  and  4   . Accordingly, descriptions overlapping with those described with reference to  FIGS.  3  and  4    will be omitted. 
       FIG.  8    is a diagram illustrating an example of an operation in a second mode of the scan driver included in the display device of  FIG.  1   .  FIG.  9    is a diagram for explaining an example of data signals supplied to data lines in response to the operation of the scan driver in  FIG.  8   . 
     In  FIG.  8   , the same reference numerals may be used for the components described with reference to  FIGS.  3  and  4   , and duplicate descriptions of these components will be omitted. Meanwhile, in  FIG.  8   , a description will be made on the premise that the driving frequency (the first frequency) in the first mode MODE 1  is set to 60 Hz. 
     Referring to  FIGS.  1 ,  3 ,  4 ,  8 , and  9   , in the second mode MODE 2 , the partial scan driving in the frame  1 FRAME may be performed at the driving frequency (the second frequency) of 20 Hz. The frame  1 FRAME may be driven during a time of about 50 ms. 
     Since the second frequency corresponds to ¼ of the first frequency, the frame  1 FRAME may include first to third writing periods WP 1 , WP 2 , and WP 3  and first to third power saving periods PSP 1 , PSP 2 , and PSP 3 . In an embodiment, the length of each of the first to third writing periods WP 1 , WP 2 , and WP 3  may correspond to about ⅓ of a time when the scan signal SCAN is supplied to all pixel rows when driving at 60 Hz. Correspondingly, the lengths of the first to fourth power saving periods PSP 1  to PSP 4  may be increased. 
     Since (3i−2)th pixel rows are selected in the first writing period WP 1 , the odd-numbered pixel rows and the even-numbered pixel rows may be alternately selected. Since (3i−1)th pixel rows are selected in the second writing period WP 2 , the even-numbered pixel rows and odd-numbered pixel rows may be alternately selected. Since (3i)th pixel rows are selected in the third writing period WP 3 , the odd-numbered pixel rows and the even-numbered pixel rows may be alternately selected. 
     In an embodiment, the controller  200  may provide the configuration data including the mode information (the first mode or the second mode) and the gamma application information to the data driver  400  during the vertical blank period of the frame. The data driver  400  may select the gamma set corresponding to the color of the image data DATA 1  based on the configuration data, and may convert the digital grayscale value corresponding to the position of the corresponding pixel into the analog data signal using the selected gamma set. 
     In an embodiment, since the odd-numbered pixel rows and the even-numbered pixel rows are alternately selected in the first writing period WP 1 , in the first writing period WP 1 , the red data R and the blue data B may be latched alternately in correspondence with the first data line D 1 . In the first writing period WP 1 , the first gamma set GM 1  and the third gamma set GM 3  may be alternately applied to the image data in correspondence with the first data line D 1 . In addition, in the first writing period WP 1 , the blue data B and the red data R may be latched alternately in correspondence with the third data line D 3 . In the first writing period WP 1 , the third gamma set GM 3  and the first gamma set GM 1  may be alternately applied to the image data in correspondence with the third data line D 3 . 
     In the second writing period WP 2 , since the even-numbered pixel rows and the odd-numbered pixel rows are alternately selected, contrary to the first writing period WP 1 , in the second writing period WP 2 , the blue data B and the red data R may be latched alternately in correspondence with the first data line D 1 . In the second writing period WP 2 , the third gamma set GM 3  and the first gamma set GM 1  may be alternately applied to the image data in correspondence with the first data line D 1 . In addition, in the second writing period WP 2 , the red data R and the blue data B may be alternately latched in correspondence with the third data line D 3 . In the second writing period WP 2 , the first gamma set GM 1  and the third gamma set GM 3  may be alternately applied to the image data in correspondence with the third data line D 3 . 
     In the third writing period WP 3 , the data driver  400  may be driven substantially equal to the first writing period WP 1 . 
     As described above, a sequential arrangement (that is, RBRB) of the red data R and the blue data B corresponding to the first writing period WP 1  of the first data line D 1  may be different from a sequential arrangement (that is, BRBR) of the blue data B and the red data R corresponding to the second writing period WP 2  of the first data line D 1 . In addition, a sequential arrangement (that is, RBRB) of the red data R and the blue data B corresponding to the third writing period WP 3  of the first data line D 1  may be different from a sequential arrangement (that is, BRBR) of the blue data B and the red data R corresponding to the second writing period WP 2  of the first data line D 1 . 
     Accordingly, in an embodiment, under the same input grayscale condition, a change in voltage of the data signals output to the first data line D 1  in the first writing period WP 1  may be different from a change in voltage of the data signals output to the first data line D 1  in the second writing period WP 2  Similarly, under the same input grayscale condition, a change in voltage of the data signals output to each of the odd-numbered data lines D 1  and D 3  in the first writing period WP 1  may be different from a change in voltage of the data signals output to each of the odd-numbered data lines D 1  and D 3  in the second writing period WP 2 . 
     In addition, under the same input grayscale condition, the output of the data signals (and the image data corresponding thereto) to the odd-numbered data lines including the first data line D 1  and the third data line D 3  during the frame  1 FRAME (for example, the second frame) in the second mode MODE 2  may be different from the output of the data signals (and the image data corresponding thereto) to the odd-numbered data lines during the first frame in the first mode MODE 1 . 
       FIG.  10    is a block diagram illustrating a display device according to embodiments of the present disclosure. 
     In  FIG.  10   , the same reference numerals may be used for the components described with reference to  FIG.  1   , and duplicate descriptions of these components will be omitted. 
     Referring to  FIG.  10   , a display device  1000 A may include a display panel  100 A, a controller  200 A, a scan driver  300 A, a data driver  400 A, and a gamma generator  500 A. 
     In an embodiment, the display device  1000 A may further include a data divider  600 . The data driver  400 A may output a data signal to first to k-th output channels CH 1  to CHk, where k may be an integer greater than 1. The data divider  600  may connect the output channels CH 1  to CHk and data lines D 1  to Dm connected to pixel columns of the display panel  100 A to 1:j, wherein j may be an integer greater than 1. The number of data lines D 1  to Dm may be greater than the number of output channels CH 1  to CHk. 
     For example, the data divider  600  may include a plurality of demultiplexers having an input/output ratio of 1:j. The data lines D 1  to Dm may be driven in a time-division manner by the data divider  600 . 
       FIG.  11    is a diagram illustrating an example of a display panel and a data divider included in the display device of  FIG.  10   . 
     In  FIG.  11   , the same reference numerals may be used for the components described with reference to  FIG.  2   , and duplicate descriptions of these components will be omitted. 
     Referring to  FIGS.  10  and  11   , the display panel  100 A may include a plurality of pixels PX 1 , PX 2 , and PX 3 , and scan lines S 1 , S 2 , S 3 , and S 4  and data lines D 1 , D 2 , D 3 , and D 4  connected to the pixels PX 1 , PX 2 , and PX 3 . The data divider  600  may include a first demultiplexer  620  and a second demultiplexer  640 . 
     In an embodiment, the first demultiplexer  620  may time-division and supply data signals supplied from a first output channel CH 1  to a first data line D 1  and a third data line D 3 . For example, the data signals may be alternately supplied to the first data line D 1  and the third data line D 3  through the first demultiplexer  620 . The first output channel CH 1  may be electrically connected to red pixels PR and blue pixels PB. Accordingly, red data or blue data may be supplied to the first output channel CH 1 . 
     In an embodiment, the second demultiplexer  640  may time-division and supply data signals supplied from a second output channel CH 2  to a second data line D 2  and a fourth data line D 4 . For example, the data signals may be alternately supplied to the second data line D 2  and the fourth data line D 4  through the second demultiplexer  640 . The second output channel CH 2  may be electrically connected to green pixels PG. Accordingly, green data may be supplied to the second output channel CH 2 . 
       FIG.  12    is a diagram for explaining an example of data signals supplied to output channels of  FIG.  11   . 
     In  FIG.  12   , the same reference numerals may be used for the components described with reference to  FIGS.  3  and  4   , and duplicate descriptions of these components will be omitted. 
     Referring to  FIGS.  3 ,  10 ,  11 , and  12   , a driving mode and a driving frequency of the display device  1000  may be changed, and a scan driving method may be changed corresponding to the driving mode. In addition,  FIG.  12    shows a first mode MODE 1  having a driving frequency of 60 Hz and a second mode MODE 2  having a driving frequency of 30 Hz. 
     The data signals corresponding to the first data line D 1  and the third data line D 3  may be output to the first output channel CH 1 . The data signals corresponding to the second data line D 2  and the fourth data line D 4  may be output to the second output channel CH 2 . In the first output channel CH 1 , the data signals corresponding to odd-numbered image data may be supplied to the first data line D 1 , and the data signals corresponding to even-numbered image data may be supplied to the third data line D 3 . Similarly, in the second output channel CH 2 , the data signals corresponding to the odd-numbered image data may be supplied to the second data line D 2 , and the data signals corresponding to the even-numbered image data may be provided to the fourth data line D 4 . 
     In the first mode MODE 1 , the data signal may be output to the first output channel CH 1  according to the arrangement order (arrangement type) of the image data of RBBR. The data signal of first red data R may be supplied to the first data line D 1 , and the data signal of first blue data B may be supplied to the third data line D 3 . The data signal of second blue data B may be supplied to the first data line D 1 , and the data signal of second red data R may be supplied to the third data line D 3 . 
     In the first mode MODE 1 , green data G may be output to the second output channel CH 2 . The data signals corresponding to odd-numbered green data G may be supplied to the second data line D 2 , and the data signals corresponding to even-numbered green data G may be supplied to the fourth data line D 4 . 
     One frame of the second mode MODE 2  may include first and second writing periods WP 1  and WP 2  and first and second power saving periods PSP 1  and PSP 2 . 
     In the first writing period WP 1 , odd-numbered pixel rows may be selected, and the data signal may be output to the first output channel CH 1  in correspondence with the arrangement type of the image data of RBRB. Accordingly, the data signals of red data R may be supplied to the first data line D 1  and the data signals of blue data B may be supplied to the third data line D 3 . 
     In the second writing period WP 2 , even-numbered pixel rows may be selected, and the data signal may be output to the first output channel CH 1  in correspondence with the arrangement type of the image data of BRBR. Accordingly, the data signals of the blue data B may be supplied to the first data line D 1  and the data signals of the red data R may be supplied to the third data line D 3 . 
     As described above, an arrangement of the image data corresponding to the first writing period WP 1  of the first output channel CH 1  may be different from an arrangement of the image data corresponding to the second writing period WP 2  of the first output channel CH 1 . In addition, under the same input grayscale condition, a change in voltage of the data signals output to the first output channel CH 1  in the first writing period WP 1  may be different from a change in voltage of the data signals output to the first output channel CH 1  in the second writing period WP 2 . 
     In the first and second power saving periods PSP 1  and PSP 2 , supply of the scan signal and the data signal may be stopped. 
       FIG.  13    is a diagram for explaining an example of data signals supplied to output channels of  FIG.  11   . 
     In  FIG.  13   , the same reference numerals may be used for the components described with reference to  FIGS.  3 ,  4 , and  12   , and duplicate descriptions of these components will be omitted. 
     Referring to  FIGS.  3 ,  10 ,  11 , and  13   , a driving mode and a driving frequency of the display device  1000 A may be changed, and a scan driving method may be changed corresponding to the driving mode. In addition,  FIG.  13    shows a first mode MODE 1  having a driving frequency of 60 Hz and a second mode MODE 2  having a driving frequency of 20 Hz. 
     One frame of the second mode MODE 2  may include first to third writing periods WP 1 , WP 2 , and WP 3  and first to third power saving periods PSP 1 , PSP 2 , and PSP 3 . 
     In the first writing period WP 1 , (3i−2)th pixel rows may be selected, and a data signal may be output to the first output channel CH 1  in correspondence with the arrangement type of the image data of RBBR. 
     In the second writing period WP 2 , (3i−1)th pixel rows may be selected, and a data signal may be output to the first output channel CH 1  in correspondence with the arrangement type of the image data of BRRB. 
     In the third writing period WP 3 , (3i)th pixel rows may be selected, and a data signal may be output to the first output channel CH 1  in correspondence with the arrangement type of the image data of RBBR. 
     Accordingly, arrangements of the image data of adjacent writing periods of the first output channel CH 1  may be different from each other. In addition, under the same input grayscale condition, a change in voltage of the data signals output to the first output channel CH 1  in each of the adjacent writing periods may be different. 
       FIG.  14    is a block diagram illustrating an example of a controller included in the display device of  FIG.  10   .  FIG.  15    is a diagram illustrating an example of data outputs corresponding to setting values included in a storage of  FIG.  14   . 
     In  FIG.  14   , the same reference numerals may be used for the components described with reference to  FIG.  6   , and duplicate descriptions of these components will be omitted. 
     Referring to  FIGS.  1 ,  10 ,  14 , and  15   , a controller  200 A may include a static image determiner  220 A, a frequency determiner  240 A, a partial scan controller  260 A, and a data rearranger  280 A. In an embodiment, the controller  200 A may further include a storage  290 . That is, the static image determiner  220 A may be electrically connected to the frequency determiner  240 A, and the frequency determiner  240 Amay be electrically connected to the data rearranger  280 A and the partial scan controller  260 A. Furthermore, the storage  290  may be electrically connected to the frequency determiner  240 A and the data rearranger  280 A. 
     In an embodiment, the storage  290  may include a storage in which option values STV including structure information and frequency information of the display panel  100  are stored. For example, the option values STV may be expressed as 3-bit information. An option value STV may include information on a driving mode, whether the data divider  600  is included (shown as No-mux/Demux in  FIG.  15   ), and an arrangement type (or arrangement order) of image data determined based on the frequency information, and/or gamma application information. 
     For example, as shown in  FIG.  15   , the number of writing periods and the data signal output to the first output channel CH 1  may vary according to a loaded option value STV. For example, when the option value STV is 001, the display device  1000 A may be interpreted as including the data divider  600 . In addition, in response to the option value STV of 001, data signals corresponding to the arrangement type of RBRB may be output in the first writing period, and data signals corresponding to the arrangement type of BRBR may be output in the second writing period. 
     When the option value STV is 010, data signals corresponding to the arrangement type of RBRB may be output in the first writing period, data signals corresponding to the arrangement type of BRBR may be output in the second writing period, and data signals corresponding to the arrangement type of RBRB may be output in the third writing period. 
     In an embodiment, the frequency determiner  240 A may generate a control signal CON for controlling the partial scan controller  260 A and the data rearranger  280 A based on the option value STV loaded from the storage  290 . The control signal CON may include information on the second frequency. The number of writing periods in the second mode MODE 2  and the pixel rows (scan lines) selected in each of the writing periods may be determined by the second frequency. 
     The data rearranger  280 A may rearrange the input image data RGB based on the loaded option value STV and the second frequency. An arrangement type of the image data output to the first output channel CH 1  may be interpreted as shown in  FIG.  15   . 
     The partial scan controller  260 A may generate configuration data CONF for determining an operation option of the data driver  400 A based on the control signal CON generated based on the loaded option value STV. The control signal CON may include the information on the second frequency and the structure information of the display panel  100 A. The configuration data CONF may include arrangement information of image data DATA 1  corresponding to the second frequency and gamma application information corresponding to the image data DATAL 
     However, this is an example, and a range of the second frequency and an input/output ratio of the data divider are not limited thereto. For example, the second frequency may further include various driving frequencies such as 10 Hz and 5 Hz. In addition, the input/output ratio of the data divider  600  may further include various ratios such as 1:3 and 1:4. 
     As described above, the controller  200 A that can be applied to various structures and driving frequencies of the display panel  100 A can be implemented by using the storage  290 . Accordingly, versatility of the controller  200 A can be improved, and the partial scan driving can be optimized under various conditions. 
     As described above, the display device according to the embodiments of the present disclosure may arrange the image data in different arrangement types in the first mode and the second mode in response to the partial scan driving in the second mode, and may apply different gamma sets to the output of the data signals corresponding to the odd-numbered data lines in the first mode and the second mode. Accordingly, in the partial scan driving of the display panel having a pixel structure as shown in  FIG.  2   , a gamma error (mismatch) in which the blue gamma (the red gamma) is incorrectly applied to the red data (the blue data) can be prevented, and the data signals can be optimized and output in each of the first mode and the second mode. Accordingly, both power consumption and image quality can be improved during the partial scan driving. 
     In addition, the display device may include a general-purpose controller that can be applied to various structures and driving frequencies of the display panel, so that the partial scan driving can be optimized under various conditions. 
     However, effects of the present disclosure are not limited to the above-described effects, and may be variously extended without departing from the spirit and scope of the present disclosure. 
     As described above, preferred embodiments of the present disclosure have been described with reference to the drawings. However, those skilled in the art will appreciate that various modifications and changes can be made to the present disclosure without departing from the spirit and scope of the disclosure as set forth in the appended claims.