Patent Publication Number: US-11037496-B2

Title: Method of driving a display panel for an organic light-emitting display device

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims priority to and the benefit of Korean Patent Application No. 10-2018-0154127, filed on Dec. 4, 2018 in the Korean Intellectual Property Office (KIPO), the content of which is incorporated herein in its entirety by reference. 
     BACKGROUND 
     1. Field 
     Aspects of some example embodiments relate generally to an organic light-emitting display device. 
     2. Description of the Related Art 
     Generally, a display panel of an organic light-emitting display device may include first pixels each including an organic light-emitting element that outputs a first color light (e.g., a red color light), second pixels each including an organic light-emitting element that outputs a second color light (e.g., a green color light), and third pixels each including an organic light-emitting element that outputs a third color light (e.g., a blue color light). Here, when each of the pixels emits light, a driving current may flow into the organic light-emitting element via a driving transistor between a first power voltage ELVDD and a second power voltage ELVSS. On the other hand, when each of the pixels does not emit light, an initialization voltage may be applied to an anode of the organic light-emitting element to initialize the anode of the organic light-emitting element. For this reason, when a single color image, which is implemented by one of the first color light, the second color light, and the third color light, is displayed on the display panel, the anode of the organic light-emitting element included in a light-emitting pixel (e.g., a red color pixel) may have a specific voltage due to the flow of the driving current. Here, the initialization voltage that is lower than the specific voltage may be applied to the anode of the organic light-emitting element included in a non-light-emitting pixel (e.g., a blue color pixel and a green color pixel) adjacent to the light-emitting pixel. Thus, a lateral leakage current may flow between the light-emitting pixel and the non-light-emitting pixel that are adjacent to each other. For example, when a low-grayscale single color image is displayed on the display panel, an effect of relatively increasing resistance of the organic light-emitting element included in the light-emitting pixel may occur because the driving current is relatively small. Hence, an effect of relatively reducing lateral resistance (or referred to as a lateral resistor) existing between the light-emitting pixel and the non-light-emitting pixel that are adjacent to each other may occur, and thus a relatively large amount of the lateral leakage current may flow between the light-emitting pixel and the non-light-emitting pixel that are adjacent to each other. As a result, when the single color image (for example, the low-grayscale single color image) is displayed on the display panel, light-emission luminance of the light-emitting pixel may not reach desired luminance due to the lateral leakage current flowing from the light-emitting pixel into the non-light-emitting pixel or the non-light-emitting pixel may unintentionally emit light (e.g., a color shift phenomenon may occur on the single color image) due to the lateral leakage current flowing from the light-emitting pixel into the non-light-emitting pixel. 
     SUMMARY 
     Aspects of some example embodiments relate generally to an organic light-emitting display device. For example, some example embodiments of the present inventive concept relate to a method of driving a display panel of an organic light-emitting display device, where the display panel includes a plurality of pixels each including an organic light-emitting element (e.g., an organic light-emitting diode (OLED)). 
     Some example embodiments provide a method of driving a display panel of an organic light-emitting display device that can minimize (or reduce) a lateral leakage current flowing between a light-emitting pixel and a non-light-emitting pixel that are adjacent to each other when a single color image is displayed on the display panel. 
     Some example embodiments provide a method of driving a display panel of an organic light-emitting display device that can minimize (or reduce) a lateral leakage current flowing between a light-emitting pixel and a non-light-emitting pixel that are adjacent to each other when a low-grayscale single color image is displayed on the display panel. 
     According to an aspect of example embodiments, a method of driving a display panel in an organic light-emitting display device, the display panel including a first pixel configured to output a first color light, a second pixel configured to output a second color light, and a third pixel configured to output a third color light, the method including: determining whether or not a single color image that is implemented by one of the first color light, the second color light, and the third color light is displayed on the display panel or a multiple color image that is implemented by at least two of the first color light, the second color light, and the third color light is displayed on the display panel, applying an initialization voltage, for initializing an anode of an organic light-emitting element included in a non-light-emitting pixel, to the anode of the organic light-emitting element included in the non-light-emitting pixel when the multiple color image is displayed on the display panel, and applying a lateral leakage prevention voltage that is higher than the initialization voltage to an anode of an organic light-emitting element included in an adjacent non-light-emitting pixel that is located within a reference distance from a light-emitting pixel when the single color image is displayed on the display panel. 
     In example embodiments, the method may further include applying the initialization voltage to an anode of an organic light-emitting element included in a non-adjacent non-light-emitting pixel that is located outside the reference distance from the light-emitting pixel when the single color image is displayed on the display panel. 
     In example embodiments, applying the lateral leakage prevention voltage may include deriving a driving current that is required to flow into the organic light-emitting element for a voltage of the anode of the organic light-emitting element included in the adjacent non-light-emitting pixel to be equal to the lateral leakage prevention voltage, an operation of deriving a data voltage corresponding to the driving current, and an operation of applying the data voltage to the adjacent non-light-emitting pixel. 
     In example embodiments, the first color light may be a red color light, the second color light may be a green color light, and the third color light may be a blue color light. 
     In example embodiments, the lateral leakage prevention voltage may be lower than a predetermined low-grayscale data voltage. 
     In example embodiments, the lateral leakage prevention voltage applied to the first pixel, the lateral leakage prevention voltage applied to the second pixel, and the lateral leakage prevention voltage applied to the third pixel may be equal to each other. 
     In example embodiments, the lateral leakage prevention voltage applied to the first pixel, the lateral leakage prevention voltage applied to the second pixel, and the lateral leakage prevention voltage applied to the third pixel may be different from each other. 
     In example embodiments, the lateral leakage prevention voltage may configure to be constant regardless of a data voltage applied to the light-emitting pixel. 
     In example embodiments, the lateral leakage prevention voltage may be configured to vary according to a data voltage applied to the light-emitting pixel. 
     In example embodiments, the lateral leakage prevention voltage may be configured to increase as the data voltage increases, and the lateral leakage prevention voltage may be configured to decrease as the data voltage decreases. 
     According to another aspect of example embodiments, a method of driving a display panel in an organic light-emitting display device, where the display panel including a first pixel configured to output a first color light, a second pixel configured to output a second color light, and a third pixel configured to output a third color light, the method including determining whether or not a single color image that is implemented by one of the first color light, the second color light, and the third color light is displayed on the display panel or a multiple color image that is implemented by at least two of the first color light, the second color light, and the third color light is displayed on the display panel, applying an initialization voltage, for initializing an anode of an organic light-emitting element included in a non-light-emitting pixel, to the anode of the organic light-emitting element included in the non-light-emitting pixel when the multiple color image is displayed on the display panel or when an average grayscale of the single color image is higher than a reference low-grayscale although the single color image is displayed on the display panel, and applying a lateral leakage prevention voltage that is higher than the initialization voltage to an anode of an organic light-emitting element included in an adjacent non-light-emitting pixel that is located within a reference distance from a light-emitting pixel when the single color image is displayed on the display panel and when the average grayscale of the single color image is lower than or equal to the reference low-grayscale. 
     In example embodiments, the method may further include an operation of applying the initialization voltage to an anode of an organic light-emitting element included in a non-adjacent non-light-emitting pixel that is located outside the reference distance from the light-emitting pixel when the single color image is displayed on the display panel and when the average grayscale of the single color image is lower than or equal to the reference low-grayscale. 
     In example embodiments, applying the lateral leakage prevention voltage may include deriving a driving current that is required to flow into the organic light-emitting element for a voltage of the anode of the organic light-emitting element included in the adjacent non-light-emitting pixel to be equal to the lateral leakage prevention voltage, deriving a data voltage corresponding to the driving current, and applying the data voltage to the adjacent non-light-emitting pixel. 
     In example embodiments, the first color light may be a red color light, the second color light may be a green color light, and the third color light may be a blue color light. 
     In example embodiments, the lateral leakage prevention voltage may be lower than a predetermined low-grayscale data voltage. 
     In example embodiments, the lateral leakage prevention voltage applied to the first pixel, the lateral leakage prevention voltage applied to the second pixel, and the lateral leakage prevention voltage applied to the third pixel may be equal to each other. 
     In example embodiments, the lateral leakage prevention voltage applied to the first pixel, the lateral leakage prevention voltage applied to the second pixel, and the lateral leakage prevention voltage applied to the third pixel may be different from each other. 
     In example embodiments, the lateral leakage prevention voltage may configure to be constant regardless of a data voltage applied to the light-emitting pixel. 
     In example embodiments, the lateral leakage prevention voltage may be configured to vary according to a data voltage applied to the light-emitting pixel. 
     In example embodiments, the lateral leakage prevention voltage may be configured to increase as the data voltage increases, and the lateral leakage prevention voltage may be configured to decrease as the data voltage decreases. 
     Therefore, a method of driving a display panel according to example embodiments may minimize (or reduce) a lateral leakage current flowing between a light-emitting pixel and a non-light-emitting pixel that are adjacent to each other when a single color image is displayed on the display panel included in an organic light-emitting display device by determining whether the single color image is displayed on the display panel or a multiple color image is displayed on the display panel, by applying an initialization voltage to an anode of an organic light-emitting element included in a non-light-emitting pixel when the multiple color image is displayed on the display panel, and by applying a lateral leakage prevention voltage to an anode of an organic light-emitting element included in an adjacent non-light-emitting pixel that is located within a reference distance from a light-emitting pixel when the single color image is displayed on the display panel. As a result, the method may prevent or reduce a phenomenon in which light-emission luminance of the light-emitting pixel does not reach desired luminance due to the lateral leakage current or the non-light-emitting pixel unintentionally emits light due to the lateral leakage current. 
     In addition, a method of driving a display panel according to example embodiments may minimize (or reduce) a lateral leakage current flowing between a light-emitting pixel and a non-light-emitting pixel that are adjacent to each other when a single color image is displayed on the display panel included in an organic light-emitting display device by determining whether the single color image is displayed on the display panel or a multiple color image is displayed on the display panel, by applying an initialization voltage to an anode of an organic light-emitting element included in a non-light-emitting pixel when the multiple color image is displayed on the display panel or when an average grayscale of the single color image is higher than a reference low-grayscale although the single color image is displayed on the display panel, and by applying a lateral leakage prevention voltage to an anode of an organic light-emitting element included in an adjacent non-light-emitting pixel that is located within a reference distance from a light-emitting pixel when the single color image is displayed on the display panel and when the average grayscale of the single color image is lower than or equal to the reference low-grayscale. As a result, the method may prevent or reduce a phenomenon in which light-emission luminance of the light-emitting pixel does not reach desired luminance due to the lateral leakage current or the non-light-emitting pixel unintentionally emits light due to the lateral leakage current. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Illustrative, non-limiting example embodiments will be more clearly understood from the following detailed description in conjunction with the accompanying drawings. 
         FIG. 1  is a flowchart illustrating a method of driving a display panel according to example embodiments. 
         FIG. 2  is a diagram illustrating an example of a display panel to which the method of  FIG. 1  is applied. 
         FIGS. 3A and 3B  are diagrams for describing that a lateral leakage current occurs between a light-emitting pixel and a non-light-emitting pixel when a single color image is displayed on a display panel. 
         FIGS. 4A and 4B  are diagrams for describing that a lateral leakage current that occurs between a light-emitting pixel and a non-light-emitting pixel when a single color image is displayed on a display panel, is reduced by the method of  FIG. 1 . 
         FIG. 5  is a flowchart illustrating an example in which a lateral leakage prevention or reduction voltage is applied according to the method of  FIG. 1  to an anode of an organic light-emitting element included in an adjacent non-light-emitting pixel that is located within a set or reference distance from a light-emitting pixel. 
         FIG. 6  is a flowchart illustrating another example in which a lateral leakage prevention or reduction voltage is applied according to the method of  FIG. 1  to an anode of an organic light-emitting element included in an adjacent non-light-emitting pixel that is located within a set or reference distance from a light-emitting pixel. 
         FIG. 7  is a flowchart illustrating still another example in which a lateral leakage prevention or reduction voltage is applied according to the method of  FIG. 1  to an anode of an organic light-emitting element included in an adjacent non-light-emitting pixel that is located within a set or reference distance from a light-emitting pixel. 
         FIG. 8  is a flowchart illustrating still another example in which a lateral leakage prevention or reduction voltage is applied according to the method of  FIG. 1  to an anode of an organic light-emitting element included in an adjacent non-light-emitting pixel that is located within a set or reference distance from a light-emitting pixel. 
         FIG. 9  is a flowchart illustrating a method of driving a display panel according to example embodiments. 
         FIG. 10  is a block diagram illustrating an organic light-emitting display device according to example embodiments. 
         FIG. 11  is a block diagram illustrating an electronic device according to example embodiments. 
         FIG. 12  is a diagram illustrating an example in which the electronic device of  FIG. 11  is implemented as a smart phone. 
     
    
    
     DETAILED DESCRIPTION 
     Hereinafter, embodiments of the present inventive concept will be explained in detail with reference to the accompanying drawings. 
       FIG. 1  is a flowchart illustrating a method of driving a display panel according to some example embodiments,  FIG. 2  is a diagram illustrating an example of a display panel to which the method of  FIG. 1  is applied,  FIGS. 3A and 3B  are diagrams for describing that a lateral leakage current occurs between a light-emitting pixel and a non-light-emitting pixel when a single color image is displayed on a display panel, and  FIGS. 4A and 4B  are diagrams for describing that a lateral leakage current that occurs between a light-emitting pixel and a non-light-emitting pixel when a single color image is displayed on a display panel, is reduced by the method of  FIG. 1 . 
     Referring to  FIGS. 1-4B , the method of  FIG. 1  may be applied on the display panel  100  using a processor (e.g., in some embodiment the processor may be a lateral leakage current reduction circuit in the driving circuit of the display panel as illustrated with respect to  FIG. 10 ) included in an organic light-emitting display device, where the display panel  100  includes a first pixel  120  that outputs a first color light, a second pixel  140  that outputs a second color light, and a third pixel  160  that outputs a third color light. Here, the first pixel  120  may be one of a red color pixel that outputs a red color light, a green color pixel that outputs a green color light, and a blue color pixel that outputs a blue color light, the second pixel  140  may be another one of the red color pixel, the green color pixel, and the blue color pixel, and the third pixel  160  may be the other one of the red color pixel, the green color pixel, and the blue color pixel. For convenience of description, it will be assumed below that the first color light is the red color light (e.g., the first pixel  120  is the red color pixel R), the second color light is the green color light (e.g., the second pixel  140  is the green color pixel G), and the third color light is the blue color light (e.g., the third pixel  160  is the blue color pixel B). Specifically, according to the method of  FIG. 1 , a processor (e.g., in the organic light-emitting display device) may analyze image data to be input to the display panel  100  (S 110 ), and may determine whether or not a single color image that is implemented by one of the first color light, the second color light, and the third color light is displayed on the display panel  100  or a multiple color image that is implemented by at least two of the first color light, the second color light, and the third color light is displayed on the display panel  100  (S 120 ). At S 120 , if the processor determines that a single color image is not displayed on the display panel  100 , the processor may apply an initialization voltage VINT, for initializing an anode of an organic light-emitting element (e.g., an organic light-emitting diode (OLED)) included in a non-light-emitting pixel (e.g., a pixel not to emit light based on the image data), to the anode of the organic light-emitting element OLED included in the non-light-emitting pixel, when the multiple color image is displayed on the display panel  100  (S 130 ). However, at S 120 , if the processor determines that a single color image is displayed on the display panel  100 , the processor may apply a lateral leakage prevention or reduction voltage VPRV that is higher than the initialization voltage VINT to an anode of an organic light-emitting element OLED included in an adjacent non-light-emitting pixel that is located within a set or reference distance from a light-emitting pixel (e.g., a pixel to emit light based on the image data) when the single color image is displayed on the display panel  100  (S 140 ). In example embodiments, according to the method of  FIG. 1 , the processor may apply the initialization voltage VINT to an anode of an organic light-emitting element OLED included in a non-adjacent non-light-emitting pixel that is located outside the set or reference distance from the light-emitting pixel when the single color image is displayed on the display panel  100  (S 150 ). 
     As illustrated in  FIG. 2 , the display panel  100  may include the first pixels  120  each including the organic light-emitting element OLED that outputs the red color light, the second pixels  140  each including the organic light-emitting element OLED that outputs the green color light, and the third pixels  160  each including the organic light-emitting element OLED that outputs the blue color light. Thus, the display panel  100  may display an image based on the red color light output from the first pixels  120 , the green color light output from the second pixels  140 , and the blue color light output from the third pixels  160 . Here, as illustrated in  FIGS. 3B and 4B , each of the first through third pixels  120 ,  140 , and  160  may include the organic light-emitting element OLED and an organic light-emitting element driving circuit DC that drives the organic light-emitting element OLED. For example, the organic light-emitting element driving circuit DC may include a switching transistor, a driving transistor, an initialization transistor, a storage capacitor, etc. In the display panel  100 , the first pixels  120 , the second pixels  140 , and the third pixels  160  may be arranged adjacent to each other. Here, the first pixels  120  may be arranged (or disposed) in a point symmetry with respect to the second pixel  140 , the second pixels  140  may be arranged in a point symmetry with respect to the first pixel  120  and the third pixel  160 , and the third pixels  160  may be arranged in a point symmetry with respect to the second pixel  140 . For example, two first pixels  120  and two third pixels  160  may be arranged to surround one second pixel  140 , two first pixels  120  may face each other with one second pixel  140  as a center, and two third pixels  160  may face each other with one second pixel  140  as a center. However, an arrangement of the first through third pixels  120 ,  140 , and  160  in the display panel  100  is not limited thereto. That is, the arrangement of the first through third pixels  120 ,  140 , and  160  in the display panel  100  may be designed in various manners. In addition, although it is illustrated in  FIG. 2  that each of the first through third pixels  120 ,  140 , and  160  has an octagonal shape, a shape of each of the first through third pixels  120 ,  140 , and  160  is not limited thereto. That is, each of the first through third pixels  120 ,  140 , and  160  may have various shapes (e.g., a tetragonal shape, a hexagon shape, an octagonal shape, etc.). Therefore, because the first pixels  120 , the second pixels  140 , and the third pixels  160  are arranged adjacent to each other in the display panel  100 , the lateral leakage current may flow from the first pixels  120  into the second and third pixels  140  and  160  when the first pixels  120  emit light and when the second and third pixels  140  and  160  do not emit light, the lateral leakage current may flow from the second pixels  140  into the first and third pixels  120  and  160  when the second pixels  140  emit light and when the first and third pixels  120  and  160  do not emit light, and the lateral leakage current may flow from the third pixels  160  into the first and second pixels  120  and  140  when the third pixels  160  emit light and when the first and second pixels  120  and  140  do not emit light. 
       FIGS. 3A and 3B  show that the lateral leakage current occurs between the light-emitting pixel and the non-light-emitting pixel when a red single color image is displayed on the display panel  100 . As illustrated in  FIGS. 3A and 3B , because only the first pixel  120  emits light when the red single color image is displayed on the display panel  100 , the first pixel  120  may be the light-emitting pixel, and the second and third pixels  140  and  160  may be the non-light-emitting pixels. Thus, because a driving current flows into the organic light-emitting element OLED through the driving transistor between a first power voltage ELVDD and a second power voltage ELVSS in the first pixel  120 , the anode of the organic light-emitting element OLED included in the first pixel  120  may have a specific voltage VA due to the flow of the driving current. On the other hand, in the second and third pixels  140  and  160 , the initialization voltage VINT for initializing the anode of the organic light-emitting element OLED of the second and third pixels  140  and  160  may be applied to the anode of the organic light-emitting element OLED of the second and third pixels  140  and  160  (e.g., the initialization transistor that is connected between the anode of the organic light-emitting element OLED and a voltage source of the initialization voltage VINT may be turned on). Here, because the voltage (e.g., VA) of the anode of the organic light-emitting element OLED included in the first pixel  120  is higher than the voltage (e.g., VINT) of the anode of the organic light-emitting element OLED included in the second and third pixels  140  and  160 , the lateral leakage current LC 1  may flow from the first pixel  120  into the second pixel  140  through the lateral resistance LR 1  existing between the first pixel  120  and the second pixel  140 , and the lateral leakage current LC 2  may flow from the first pixel  120  into the third pixel  160  through the lateral resistance LR 2  existing between the first pixel  120  and the third pixel  160 . For example, when the red single color image is a low-grayscale image, an effect of relatively increasing resistance of the organic light-emitting element OLED included in the first pixel  120  may occur because the driving current flowing within the first pixel  120  is relatively small. Hence, an effect of relatively reducing the lateral resistances LR 1  and LR 2  existing between the first pixel  120  and the second and third pixels  140  and  160  that are adjacent to each other, may occur, and thus the lateral leakage currents LC 1  and LC 2  may be increased. As a result, light-emission luminance of the first pixel  120  may not reach desired luminance due to the lateral leakage currents LC 1  and LC 2  flowing from the first pixel  120  into the second and third pixels  140  and  160  or the second and third pixels  140  and  160  may unintentionally emit light (e.g., a color shift phenomenon may occur on the red single color image) due to the lateral leakage currents LC 1  and LC 2  flowing from the first pixel  120  into the second and third pixels  140  and  160 . 
     To solve the above problem, according to the method of  FIG. 1 , the processor may analyze the image data to be input to the display panel  100  (S 110 ) and may determine whether or not the single color image that is implemented by one of the first color light, the second color light, and the third color light is displayed on the display panel  100  or the multiple color image that is implemented by at least two of the first color light, the second color light, and the third color light is displayed on the display panel  100  (S 120 ). Here, the first color light may be the red color light, the second color light may be the green color light, and the third color light may be the blue color light. However, the first through third color lights are not limited thereto. When the multiple color image is displayed on the display panel  100 , a portion or all of the first through third pixels  120 ,  140 , and  160  in the display panel  100  may emit light. For example, when the red single color image is displayed on the display panel  100 , a portion or all of the first pixels  120  (e.g., the red color pixels) in the display panel  100  may emit light, and all of the second and third pixels  140  and  160  (e.g., the green color pixels and the blue color pixels) may emit no light. For example, when the green single color image is displayed on the display panel  100 , a portion or all of the second pixels  140  (e.g., the green color pixels) in the display panel  100  may emit light, and all of the first and third pixels  120  and  160  (e.g., the red color pixels and the blue color pixels) may emit no light. For example, when the blue single color image is displayed on the display panel  100 , a portion or all of the third pixels  160  (e.g., the blue color pixels) in the display panel  100  may emit light, and all of the first and second pixels  120  and  140  (e.g., the red color pixels and the green color pixels) may emit no light. 
     As described above, according to the method of  FIG. 1 , the processor may apply the initialization voltage VINT, for initializing the anode of the organic light-emitting element OLED included in the non-light-emitting pixel, to the anode of the organic light-emitting element OLED included in the non-light-emitting pixel, when the multiple color image is displayed on the display panel  100  (S 130 ). For example, when the multiple color image is displayed on the display panel  100 , according to the method of  FIG. 1 , the processor may apply the initialization voltage VINT to the anode of the organic light-emitting element OLED included in non-light-emitting first pixels  120  of the first pixels  120 , may apply the initialization voltage VINT to the anode of the organic light-emitting element OLED included in non-light-emitting second pixels  140  of the second pixels  140 , and may apply the initialization voltage VINT to the anode of the organic light-emitting element OLED included in non-light-emitting third pixels  160  of the third pixels  160 . In other words, according to the method of  FIG. 1 , the processor may drive the display panel  100  as described above when the multiple color image is displayed on the display panel  100 . On the other hand, according to the method of  FIG. 1 , the processor may apply the lateral leakage prevention or reduction voltage VPRV that is higher than the initialization voltage VINT to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel that is located within the set or reference distance from the light-emitting pixel when the single color image is displayed on the display panel  100  (S 140 ). Here, the set or reference distance may be determined by considering influence between the light-emitting pixel and the non-light-emitting pixel. In an example embodiment, the lateral leakage prevention or reduction voltage VPRV may be higher than the initialization voltage VINT and may be lower than a set or predetermined low-grayscale data voltage. For example, the set or predetermined low-grayscale data voltage may be a data voltage for implementing a 5th grayscale when each of the first through third pixels  120 ,  140 , and  160  is capable of implementing 0th to 255th grayscales. As illustrated in  FIGS. 4A and 4B , when the red single color image is displayed on the display panel  100 , a so-called fence FC of the adjacent non-light-emitting pixels (e.g., the second pixels  140 ) may be formed around the light-emitting pixel (e.g., the first pixel  120 ) by applying the lateral leakage prevention or reduction voltage VPRV to the adjacent non-light-emitting pixels (e.g., the second pixels  140 ) that are located within the set or reference distance from the light-emitting pixel (e.g., the first pixel  120 ). In other words, as illustrated in  FIG. 4B , because a voltage difference between the voltage (e.g., VA) of the anode of the organic light-emitting element OLED of the light-emitting pixel (e.g., the first pixel  120 ) and the voltage (e.g., VPRV) of the anode of the organic light-emitting element OLED of the adjacent non-light-emitting pixel (e.g., the second pixel  140 ) is smaller than a conventional voltage difference (e.g., VA-VINT), the lateral leakage current LC flowing from the light-emitting pixel (e.g., the first pixel  120 ) into the adjacent non-light-emitting pixel (e.g., the second pixel  140 ) through the lateral resistance LR may be minimized (or reduced) as compared to related-art methods. Although it is described above that the light-emitting pixel is the first pixel  120  for convenience of description, it should be understood that the light-emitting pixel may be the second pixel  140  or the third pixel  160 . 
     In an example embodiment, when the lateral leakage prevention or reduction voltage VPRV is applied to the adjacent non-light-emitting pixel that is located within the set or reference distance from the light-emitting pixel as the single color image is displayed on the display panel  100 , the lateral leakage prevention or reduction voltage VPRV applied to the first pixel  120 , the lateral leakage prevention or reduction voltage VPRV applied to the second pixel  140 , and the lateral leakage prevention or reduction voltage VPRV applied to the third pixel  160 , may be equal to each other. That is, the same lateral leakage prevention or reduction voltage VPRV may be applied to the adjacent non-light-emitting pixel that is located within the set or reference distance from the light-emitting pixel regardless of whether the adjacent non-light-emitting pixel is the first pixel  120 , the second pixel  140 , or the third pixel  160 . In another example embodiment, when the lateral leakage prevention or reduction voltage VPRV is applied to the adjacent non-light-emitting pixel that is located within the set or reference distance from the light-emitting pixel as the single color image is displayed on the display panel  100 , the lateral leakage prevention or reduction voltage VPRV applied to the first pixel  120 , the lateral leakage prevention or reduction voltage VPRV applied to the second pixel  140 , and the lateral leakage prevention or reduction voltage VPRV applied to the third pixel  160  may be different from each other. That is, a different lateral leakage prevention or reduction voltage VPRV may be applied to the adjacent non-light-emitting pixel that is located within the set or reference distance from the light-emitting pixel according to whether the adjacent non-light-emitting pixel is the first pixel  120 , the second pixel  140 , or the third pixel  160 . The different lateral leakage prevention or reduction voltage VPRV may allow the lateral leakage currents LC 1  and LC 2  to be more effectively prevented by reflecting different characteristics such as light-emission efficiency among the first pixel  120 , the second pixel  140 , and the third pixel  160 . In an example embodiment, when the lateral leakage prevention or reduction voltage VPRV is applied to the adjacent non-light-emitting pixel that is located within the set or reference distance from the light-emitting pixel as the single color image is displayed on the display panel  100 , the lateral leakage prevention voltage VPRV applied to the adjacent non-light-emitting pixel may be constant regardless of a data voltage applied to the light-emitting pixel. In this case, the lateral leakage prevention or reduction voltage VPRV applied to the adjacent non-light-emitting pixel may have a fixed voltage level. In another example embodiment, when the lateral leakage prevention or reduction voltage VPRV is applied to the adjacent non-light-emitting pixel that is located within the set or reference distance from the light-emitting pixel as the single color image is displayed on the display panel  100 , the lateral leakage prevention or reduction voltage VPRV applied to the adjacent non-light-emitting pixel may vary according to a data voltage applied to the light-emitting pixel. For example, the lateral leakage prevention or reduction voltage VPRV applied to the adjacent non-light-emitting pixel may increase as the data voltage applied to the light-emitting pixel increases, and the lateral leakage prevention or reduction voltage VPRV applied to the adjacent non-light-emitting pixel may decrease as the data voltage applied to the light-emitting pixel decreases. According to the method of  FIG. 1 , the processor may apply the initialization voltage VINT to the anode of the organic light-emitting element OLED included in the non-adjacent, non-light-emitting pixel, that is located outside the set or reference distance from the light-emitting pixel, when the single color image is displayed on the display panel  100  (S 150 ). As described above, the set or reference distance may be determined by considering the influence between the light-emitting pixel and the non-light-emitting pixel. Thus, because the influence between the light-emitting pixel and the non-adjacent non-light-emitting pixel that is located outside the set or reference distance from the light-emitting pixel is little, according to the method of  FIG. 1 , the processor may apply the initialization voltage VINT to the non-adjacent non-light-emitting pixel that is located outside the set or reference distance from the light-emitting pixel. 
     In brief, the method of  FIG. 1  may minimize (or reduce) the lateral leakage current LC flowing between the light-emitting pixel and the non-light-emitting pixel that are adjacent to each other when the single color image is displayed on the display panel  100  by determining whether the single color image is displayed on the display panel  100  or the multiple color image is displayed on the display panel  100 , by applying the initialization voltage VINT to the anode of the organic light-emitting element OLED included in the non-light-emitting pixel when the multiple color image is displayed on the display panel  100 , and by applying the lateral leakage prevention or reduction voltage VPRV to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel that is located within the set or reference distance from the light-emitting pixel when the single color image is displayed on the display panel  100 . Thus, the method of  FIG. 1  may prevent or reduce a phenomenon in which light-emission luminance of the light-emitting pixel does not reach desired luminance due to the lateral leakage current LC or the non-light-emitting pixel unintentionally emits light due to the lateral leakage current LC. As a result, the organic light-emitting display device employing the method of  FIG. 1  may provide a high-quality image to a viewer (or user). 
       FIG. 5  is a flowchart illustrating an example in which a lateral leakage prevention or reduction voltage is applied according to the method of  FIG. 1  to an anode of an organic light-emitting element included in an adjacent non-light-emitting pixel that is located within a set or reference distance from a light-emitting pixel. 
     Referring to  FIG. 5 , the processor may apply the lateral leakage prevention or reduction voltage VPRV, according to the method of  FIG. 1 , to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel that is located within the set or reference distance from the light-emitting pixel when the single color image is displayed on the display panel  100 . Specifically, according to the method of  FIG. 1 , the processor may derive a driving current that is required to flow into the organic light-emitting element OLED included in the adjacent non-light-emitting pixel for a voltage of the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel to be equal to the lateral leakage prevention or reduction voltage VPRV (S 210 ). For example, according to the method of  FIG. 1 , the processor may estimate, based on resistance of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel, the driving current that is required to flow into the organic light-emitting element OLED included in the adjacent non-light-emitting pixel for the voltage of the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel to be equal to the lateral leakage prevention or reduction voltage VPRV. Next, according to the method of  FIG. 1 , the processor may derive a data voltage corresponding to the driving current (S 220 ). For example, according to the method of  FIG. 1 , the processor may determine the data voltage corresponding to the driving current using a mapping table that stores the driving currents flowing into the organic light-emitting element OLED included in each of the first through third pixels  120 ,  140 , and  160  and corresponding data voltages applied to each of the first through third pixels  120 ,  140 , and  160  matched thereto. Here, when each of the first through third pixels  120 ,  140 , and  160  is capable of implementing 0th through 255th grayscales, according to the method of  FIG. 1 , the processor may enlarge a grayscale range from a grayscale range between the 0th grayscale and the 255th grayscale to a grayscale range between the 0th grayscale and the (255+k)th grayscale, where k is an integer greater than or equal to 1, may allocate a data voltage for light-emission to a grayscale range between the (k)th grayscale and the (255+k)th grayscale, and then may allocate the data voltage for applying the lateral leakage prevention or reduction voltage VPRV to a grayscale range between the 0th grayscale and the (k−1)th grayscale. Subsequently, according to the method of  FIG. 1 , the processor may apply the lateral leakage prevention or reduction voltage VPRV to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel by applying the data voltage to the adjacent non-light-emitting pixel (S 230 ). 
       FIG. 6  is a flowchart illustrating another example in which a lateral leakage prevention voltage is applied according to the method of  FIG. 1  to an anode of an organic light-emitting element included in an adjacent non-light-emitting pixel that is located within a set or reference distance from a light-emitting pixel. 
     Referring to  FIG. 6 , the processor may apply the lateral leakage prevention or reduction voltage VPRV, according to the method of  FIG. 1 , to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel, that is located within the set or reference distance from the light-emitting pixel, when the single color image is displayed on the display panel  100 . Specifically, according to the method of  FIG. 1 , the processor may derive a driving current that is required to flow into the organic light-emitting element OLED included in the adjacent non-light-emitting pixel for a voltage of the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel to be equal to the lateral leakage prevention or reduction voltage VPRV (S 310 ). For example, according to the method of  FIG. 1 , the processor may estimate, based on resistance of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel, the driving current that is required to flow into the organic light-emitting element OLED included in the adjacent non-light-emitting pixel for the voltage of the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel to be equal to the lateral leakage prevention or reduction voltage VPRV. Next, according to the method of  FIG. 1 , the processor may apply the driving current to the organic light-emitting element OLED included in the adjacent non-light-emitting pixel using an external current source (S 320 ). For example, the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel may be connected to the external current source via a specific transistor, and the external current source may provide the driving current to the organic light-emitting element OLED included in the adjacent non-light-emitting pixel when the transistor is turned on. Thus, the driving current may flow into the organic light-emitting element OLED included in the adjacent non-light-emitting pixel, and thus the lateral leakage prevention or reduction voltage VPRV may be applied to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel. 
       FIG. 7  is a flowchart illustrating still another example in which a lateral leakage prevention or reduction voltage is applied according to the method of  FIG. 1  to an anode of an organic light-emitting element included in an adjacent non-light-emitting pixel that is located within a set or reference distance from a light-emitting pixel. 
     Referring to  FIG. 7 , the processor may apply the lateral leakage prevention or reduction voltage VPRV, according to the method of  FIG. 1 , to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel that is located within the set or reference distance from the light-emitting pixel when the single color image is displayed on the display panel  100 . Specifically, according to the method of  FIG. 1 , the processor may determine the lateral leakage prevention or reduction voltage VPRV to be applied to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel that is located within the set or reference distance from the light-emitting pixel (S 410 ). For example, according to the method of  FIG. 1 , the processor may calculate the lateral leakage prevention or reduction voltage VPRV to be applied to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel by considering a data voltage to be applied to the light-emitting pixel, characteristics (e.g., light-emission efficiency, etc.) of the adjacent non-light-emitting pixel, etc. Next, according to the method of  FIG. 1 , the processor may directly apply the lateral leakage prevention or reduction voltage VPRV to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel using an external voltage source (S 420 ). For example, the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel may be connected to the external voltage source via a specific transistor, and the external voltage source may directly apply the lateral leakage prevention or reduction voltage VPRV to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel when the transistor is turned on. Thus, the lateral leakage prevention or reduction voltage VPRV may be applied to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel. 
       FIG. 8  is a flowchart illustrating still another example in which a lateral leakage prevention or reduction voltage is applied according to the method of  FIG. 1  to an anode of an organic light-emitting element included in an adjacent non-light-emitting pixel that is located within a set or reference distance from a light-emitting pixel. 
     Referring to  FIG. 8 , the processor may apply the lateral leakage prevention or reduction voltage VPRV, according to the method of  FIG. 1 , to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel that is located within the set or reference distance from the light-emitting pixel when the single color image is displayed on the display panel  100 . Specifically, according to the method of  FIG. 1 , the processor may determine the lateral leakage prevention or reduction voltage VPRV to be applied to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel that is located within the set or reference distance from the light-emitting pixel (S 510 ). For example, according to the method of  FIG. 1 , the processor may calculate the lateral leakage prevention or reduction voltage VPRV to be applied to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel by considering a data voltage to be applied to the light-emitting pixel, characteristics (e.g., light-emission efficiency, etc.) of the adjacent non-light-emitting pixel, etc. Next, according to the method of  FIG. 1 , the processor may increase the initialization voltage VINT to have the same voltage level as the lateral leakage prevention or reduction voltage VPRV (S 520 ) and may directly apply the initialization voltage VINT to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel (S 530 ). For example, the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel may be connected to a voltage source of the initialization voltage VINT via an initialization transistor, and the voltage source may directly apply the initialization voltage VINT adjusted to have the same voltage level as the lateral leakage prevention or reduction voltage VPRV to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel when the initialization transistor is turned on. Thus, the lateral leakage prevention or reduction voltage VPRV may be applied to the anode of the organic light-emitting element OLED included in the adjacent non-light-emitting pixel. 
       FIG. 9  is a flowchart illustrating a method of driving a display panel according to example embodiments. 
     Referring to  FIG. 9 , the method of  FIG. 9  may be applied on the display panel using a processor (e.g., in some embodiment the processor may be a lateral leakage current reduction circuit in the driving circuit of the display panel as illustrated with respect to  FIG. 10 ) included in an organic light-emitting display device, where the display panel includes a first pixel that outputs a first color light, a second pixel that outputs a second color light, and a third pixel that outputs a third color light. Here, the first pixel may be one of a red color pixel that outputs a red color light, a green color pixel that outputs a green color light, and a blue color pixel that outputs a blue color light, the second pixel may be another one of the red color pixel, the green color pixel, and the blue color pixel, and the third pixel may be the other one of the red color pixel, the green color pixel, and the blue color pixel. The method of  FIG. 9  may be substantially the same as the method of  FIG. 1 , except that the method of  FIG. 9  performs operations by classifying a single color image displayed on the display panel into a low-grayscale single color image and a non-low-grayscale single color image. Thus, duplicated description will not be repeated in describing the method of  FIG. 9 . 
     Specifically, according to the method of  FIG. 9 , the processor may analyze image data to be input to the display panel (S 610 ) and may determine whether a single color image that is implemented by one of the first color light, the second color light, and the third color light is displayed on the display panel or a multiple color image that is implemented by at least two of the first color light, the second color light, and the third color light is displayed on the display panel (S 620 ). Here, according to the method of  FIG. 9 , the processor may apply an initialization voltage for initializing an anode of an organic light-emitting element included in a non-light-emitting pixel to the anode of the organic light-emitting element included in the non-light-emitting pixel when the multiple color image is displayed on the display panel (S 650 ). On the other hand, according to the method of  FIG. 9 , the processor may determine whether an average grayscale of the single color image is lower than or equal to a reference low-grayscale when the single color image is displayed on the display panel (S 625 ). Here, when the average grayscale of the single color image displayed on the display panel is higher than the reference low-grayscale (e.g., when the single color image is the non-low-grayscale single color image), the method of  FIG. 9  may apply the initialization voltage to the anode of the organic light-emitting element included in the non-light-emitting pixel (S 650 ). On the other hand, when the average grayscale of the single color image displayed on the display panel is lower than or equal to the reference low-grayscale (e.g., when the single color image is the low-grayscale single color image), according to the method of  FIG. 9 , the processor may apply a lateral leakage prevention or reduction voltage that is higher than the initialization voltage to an anode of an organic light-emitting element included in an adjacent non-light-emitting pixel that is located within a set or reference distance from a light-emitting pixel (S 630 ). Although the average grayscale of the single color image displayed on the display panel is lower than or equal to the reference low-grayscale (e.g., although the single color image is the low-grayscale single color image), according to the method of  FIG. 9 , the processor may apply the initialization voltage to an anode of an organic light-emitting element included in a non-adjacent non-light-emitting pixel that is located outside the set or reference distance from the light-emitting pixel (S 640 ). As described above, the set or reference distance may be determined by considering influence between the light-emitting pixel and the non-light-emitting pixel. Thus, because the influence between the light-emitting pixel and the non-adjacent non-light-emitting pixel that is located outside the set or reference distance from the light-emitting pixel is little, the method of  FIG. 9  may apply the initialization voltage to the non-adjacent non-light-emitting pixel that is located outside the set or reference distance from the light-emitting pixel. 
     In brief, the method of  FIG. 9  may minimize (or reduce) the lateral leakage current flowing between the light-emitting pixel and the non-light-emitting pixel that are adjacent to each other when the low-grayscale single color image is displayed on the display panel by determining whether the single color image is displayed on the display panel or the multiple color image is displayed on the display panel, by applying the initialization voltage to the anode of the organic light-emitting element included in the non-light-emitting pixel when the multiple color image is displayed on the display panel or when the average grayscale of the single color image is higher than the reference low-grayscale although the single color image is displayed on the display panel, and by applying the lateral leakage prevention or reduction voltage to the anode of the organic light-emitting element included in the adjacent non-light-emitting pixel that is located within the set or reference distance from the light-emitting pixel when the single color image is displayed on the display panel and when the average grayscale of the single color image is lower than or equal to the reference low-grayscale. Thus, the method of  FIG. 9  may prevent or reduce a phenomenon in which light-emission luminance of the light-emitting pixel does not reach desired luminance due to the lateral leakage current or the non-light-emitting pixel unintentionally emits light due to the lateral leakage current. As a result, the organic light-emitting display device employing the method of  FIG. 9  may provide a high-quality image to a viewer (or user). 
       FIG. 10  is a block diagram illustrating an organic light-emitting display device according to example embodiments. 
     Referring to  FIG. 10 , the organic light-emitting display device  500  may include a display panel  510  and a display panel driving circuit  520 . 
     The display panel  510  may include a plurality of pixels. Here, the pixels may include a plurality of first pixels each including an organic light-emitting element that outputs a first color light (e.g., a red color light), a plurality of second pixels each including an organic light-emitting element that outputs a second color light (e.g., a green color light), and a plurality of third pixels each including an organic light-emitting element that outputs a third color light (e.g., a blue color light). Here, each of the first through third pixels may include the organic light-emitting element and an organic light-emitting element driving circuit that drives the organic light-emitting element. For example, the organic light-emitting element circuit may include a switching transistor, a driving transistor, an initialization transistor, a storage capacitor, etc. In display panel  510 , the first pixels, the second pixels, and the third pixels may be arranged adjacent to each other. Here, in the display panel  510 , the first pixels, the second pixels, and the third pixels may be arranged in various structures. In an example embodiment, the first pixels may be arranged in a point symmetry with respect to the second pixel, the second pixels may be arranged in a point symmetry with respect to the first pixel and the third pixel, and the third pixels may be arranged in a point symmetry with respect to the second pixel. Based on this structure, the display panel  510  may display an image using the first color light output from the first pixels, the second color light output from the second pixels, and the third color light output from the third pixels. 
     The display panel driving circuit  520  may drive the display panel  510 . For this operation, the display panel driving circuit  520  may include a scan driver, a data driver, a timing controller, etc. In some example embodiments, the display panel driving circuit  520  may further include an emission control driver. The display panel  510  may be connected to the data driver via a plurality of data-lines. The display panel  510  may be connected to the scan driver via a plurality of scan-lines. The display panel  510  may be connected to the emission control driver via a plurality of emission control-lines. Specifically, the data driver may provide a data signal DS to the display panel  510  via the data-lines, the scan driver may provide a scan signal SS to the display panel  510  via the scan-lines, and the emission control driver may provide an emission control signal ES to the display panel  510  via the emission control-lines. The timing controller may control the scan driver, the data driver, the emission control driver, etc. That is, the timing controller may generate a plurality of control signals to provide the control signals to the scan driver, the data driver, the emission control driver, etc. For example, the timing controller may perform a specific processing (e.g., data compensation, etc.) on the data signal input from an external component. In example embodiments, the display panel driving circuit  520  may further include a lateral leakage current reduction circuit  525  that minimizes (or reduces) a lateral leakage current flowing between a light-emitting pixel and a non-light-emitting pixel that are adjacent to each other when a single color image or a low-grayscale single color image is displayed on the display panel  510 . In some example embodiments, the lateral leakage current reduction circuit  525  may be implemented externally to the display panel driving circuit  520 . 
     In an example embodiment, the lateral leakage current reduction circuit  525  may determine whether the single color image is displayed on the display panel  510  or the multiple color image is displayed on the display panel  510 , may apply an initialization voltage to an anode of an organic light-emitting element included in the non-light-emitting pixel when the multiple color image is displayed on the display panel  510 , may apply a lateral leakage prevention or reduction voltage that is higher than the initialization voltage to an anode of an organic light-emitting element included in an adjacent non-light-emitting pixel that is located within a set or reference distance from the light-emitting pixel when the single color image is displayed on the display panel  510 . In another example embodiment, the lateral leakage current reduction circuit  525  may determine whether the single color image is displayed on the display panel  510  or the multiple color image is displayed on the display panel  510 , may apply an initialization voltage to an anode of an organic light-emitting element included in the non-light-emitting pixel when the multiple color image is displayed on the display panel  510  or when an average grayscale of the single color image is higher than a reference low-grayscale although the single color image is displayed on the display panel  510 , and may apply a lateral leakage prevention or reduction voltage that is higher than the initialization voltage to an anode of an organic light-emitting element included in an adjacent non-light-emitting pixel that is located within a set or reference distance from the light-emitting pixel when the single color image is displayed on the display panel  510  and when the average grayscale of the single color image is lower than or equal to the reference low-grayscale. Because these are described above with reference to  FIGS. 1 to 9 , duplicated description related thereto will not be repeated. 
       FIG. 11  is a block diagram illustrating an electronic device according to example embodiments, and  FIG. 12  is a diagram illustrating an example in which the electronic device of  FIG. 11  is implemented as a smart phone. 
     Referring to  FIGS. 11 and 12 , the electronic device  1000  may include a processor  1010 , a memory device  1020 , a storage device  1030 , an input/output (I/O) device  1040 , a power supply  1050 , and an organic light-emitting display device  1060 . Here, the organic light-emitting display device  1060  may be the organic light-emitting display device  500  of  FIG. 10 . In addition, the electronic device  1000  may further include a plurality of ports for communicating with a video card, a sound card, a memory card, a universal serial bus (USB) device, other electronic devices, etc. In an example embodiment, as illustrated in  FIG. 12 , the electronic device  1000  may be implemented as a smart phone. However, the electronic device  1000  is not limited thereto. For example, the electronic device  1000  may be implemented as a cellular phone, a video phone, a smart pad, a smart watch, a tablet PC, a car navigation system, a computer monitor, a laptop, a head mounted display (HMD) device, etc. 
     The processor  1010  may perform various computing functions. The processor  1010  may be a micro-processor, a central processing unit (CPU), an application processor (AP), etc. The processor  1010  may be coupled to other components via an address bus, a control bus, a data bus, etc. Further, the processor  1010  may be coupled to an extended bus such as a peripheral component interconnection (PCI) bus. The memory device  1020  may store data for operations of the electronic device  1000 . For example, the memory device  1020  may include at least one non-volatile memory device such as an erasable programmable read-only memory (EPROM) device, an electrically erasable programmable read-only memory (EEPROM) device, a flash memory device, a phase change random access memory (PRAM) device, a resistance random access memory (RRAM) device, a nano floating gate memory (NFGM) device, a polymer random access memory (PoRAM) device, a magnetic random access memory (MRAM) device, a ferroelectric random access memory (FRAM) device, etc and/or at least one volatile memory device such as a dynamic random access memory (DRAM) device, a static random access memory (SRAM) device, a mobile DRAM device, etc. The storage device  1030  may include a solid state drive (SSD) device, a hard disk drive (HDD) device, a CD-ROM device, etc. The I/O device  1040  may include an input device such as a keyboard, a keypad, a mouse device, a touch-pad, a touch-screen, etc, and an output device such as a printer, a speaker, etc. The power supply  1050  may provide power for operations of the electronic device  1000 . 
     The organic light-emitting display device  1060  may be coupled to other components via the buses or other communication links. In some example embodiments, the organic light-emitting display device  1060  may be included in the I/O device  1040 . As described above, the organic light-emitting display device  1060  may include a lateral leakage current reduction circuit that minimizes (or reduces) a lateral leakage current flowing between a light-emitting pixel and a non-light-emitting pixel that are adjacent to each other when a single color image or a low-grayscale single color image is displayed on a display panel. In an example embodiment, the lateral leakage current reduction circuit may apply a lateral leakage prevention or reduction voltage to an anode of an organic light-emitting element included in an adjacent non-light-emitting pixel that is located within a set or reference distance from the light-emitting pixel when the single color image is displayed on the display panel of the organic light-emitting display device  1060 . In another example embodiment, the lateral leakage current reduction circuit may apply a lateral leakage prevention or reduction voltage to an anode of an organic light-emitting element included in an adjacent non-light-emitting pixel that is located within a set or reference distance from a light-emitting pixel when the low-grayscale single color image is displayed on the display panel of the organic light-emitting display device  1060 . As a result, in the organic light-emitting display device  1060 , the lateral leakage current flowing between the light-emitting pixel and the non-light-emitting pixel that are adjacent to each other when the single color image or the low-grayscale single color image is displayed on the display panel may be minimized (or reduced), and thus a problem in which light-emission luminance of the light-emitting pixel does not reach desired luminance or the non-light-emitting pixel unintentionally emits light may be prevented or reduced. Because these are described above, duplicated description related thereto will not be repeated. 
     The present inventive concept may be applied to an organic light-emitting display device and an electronic device including the organic light-emitting display device. For example, the present inventive concept may be applied to a cellular phone, a smart phone, a video phone, a smart pad, a smart watch, a tablet PC, a car navigation system, a television, a computer monitor, a laptop, a head mounted display (HMD) device, an MP3 player, etc. 
     It will be understood that, although the terms “first”, “second”, “third”, etc., may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed herein could be termed a second element, component, region, layer or section, without departing from the spirit and scope of the inventive concept. 
     Spatially relative terms, such as “beneath”, “below”, “lower”, “under”, “above”, “upper” and the like, may be used herein for ease of description to describe one element or feature&#39;s relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that such spatially relative terms are intended to encompass different orientations of the device in use or in operation, in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” or “under” other elements or features would then be oriented “above” the other elements or features. Thus, the example terms “below” and “under” can encompass both an orientation of above and below. The device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein should be interpreted accordingly. In addition, it will also be understood that when a layer is referred to as being “between” two layers, it can be the only layer between the two layers, or one or more intervening layers may also be present. 
     The terminology used herein is for the purpose of describing aspects of some example embodiments only and is not intended to be limiting of the inventive concept. As used herein, the terms “substantially,” “about,” and similar terms are used as terms of approximation and not as terms of degree, and are intended to account for the inherent deviations in measured or calculated values that would be recognized by those of ordinary skill in the art. 
     As used herein, the singular forms “a” and “an” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising”, when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items. Expressions such as “at least one of,” when preceding a list of elements, modify the entire list of elements and do not modify the individual elements of the list. Further, the use of “may” when describing embodiments of the inventive concept refers to “one or more embodiments of the present invention”. Also, the term “exemplary” is intended to refer to an example or illustration. As used herein, the terms “use,” “using,” and “used” may be considered synonymous with the terms “utilize,” “utilizing,” and “utilized,” respectively. 
     It will be understood that when an element or layer is referred to as being “on”, “connected to”, “coupled to”, or “adjacent to” another element or layer, it may be directly on, connected to, coupled to, or adjacent to the other element or layer, or one or more intervening elements or layers may be present. In contrast, when an element or layer is referred to as being “directly on”, “directly connected to”, “directly coupled to”, or “immediately adjacent to” another element or layer, there are no intervening elements or layers present. 
     The foregoing is illustrative of example embodiments and is not to be construed as limiting thereof. Although a few example embodiments have been described, those skilled in the art will readily appreciate that many modifications are possible in the example embodiments without materially departing from the novel teachings and characteristics of the present inventive concept. Accordingly, all such modifications are intended to be included within the scope of the present inventive concept as defined in the claims. Therefore, it is to be understood that the foregoing is illustrative of various example embodiments and is not to be construed as limited to the specific example embodiments disclosed, and that modifications to the disclosed example embodiments, as well as other example embodiments, are intended to be included within the scope of the appended claims, and their equivalents.