Display device and method for driving the same

Abstract

A display device and a method for driving the display device are provided. The display device includes: a plurality of first pixels connected to a first scan line, a plurality of second pixels connected to a second scan line, and a plurality of third pixels connected to a third scan line, wherein, in a second frame period immediately following the first frame period, image portions displayed by the first pixels, the second pixels, and the third pixels connected to the first data line are shifted in a first direction from positions in the first frame period, wherein image portions displayed by the first pixels and the second pixels connected to the second data line are shifted in the first direction in the second frame period, and wherein image portions displayed by the third pixels connected to the second data line are shifted in a direction different from the first direction in the second frame period.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2019-0139556, filed on November 4, 2019, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference. Technical Field

[0003] Aspects of some exemplary embodiments of the present disclosure generally relate to a display device and a method of driving the same. Background Art

[0004] As information technology develops, the use of display devices that provide a connection medium between users and information has increased. Accordingly, display devices such as liquid crystal display devices, organic light emitting display devices, and plasma display devices are increasingly being utilized.

[0005] When the display device continuously displays a still or static image, a temporary afterimage may be generated due to hysteresis characteristics of a transistor included in a pixel circuit, or a permanent afterimage may be generated due to degradation of a light emitting diode included in a pixel.

[0006] In addition, even when the display device displays a moving image, when there is a region where an image (for example, a logo) with fixed characters, graphics, pictures, colors, etc. is displayed, an afterimage may be generated.

[0007] The above information disclosed in this Background section is only for enhancement of background understanding and therefore the information discussed in this Background section does not necessarily constitute prior art. Summary of the invention

[0008] Some example embodiments relate to a pixel shifting technique for displaying an image while shifting the image within a range in which the shift of the image is not perceived by a user.

[0009] Aspects of some example embodiments include a display device capable of enhancing a pixel shift effect by partially increasing a shift amount of a target image region and a driving method of the display device.

[0010] According to some exemplary embodiments of the present disclosure, a display device is provided, comprising: a first pixel connected to a first scan line, a second pixel connected to a second scan line, and a third pixel connected to a third scan line, wherein, starting from a position in a first frame period, an image portion displayed by the first pixel, the second pixel, and the third pixel connected to the first data line is shifted in a first direction in a second frame period immediately following the first frame period, wherein the image portion displayed by the first pixel and the second pixel connected to the second data line is shifted in the first direction in the second frame period, and wherein the image portion displayed by the third pixel connected to the second data line is shifted in a direction different from the first direction in the second frame period.

[0011] According to some exemplary embodiments, the display device may further include a fourth pixel connected to a fourth scan line. An image portion displayed by the fourth pixel connected to the third data line and the fourth data line may be shifted in a direction different from the first direction during the second frame period, and an image portion displayed by the third pixel connected to the third data line and the fourth data line may be shifted in the first direction during the second frame period. The third data line may be located between some of the first data lines and the second data line, and the fourth data line may be located between the second data line and the remaining first data lines.

[0012] According to some example embodiments, a portion of an image displayed by a fourth pixel connected to the first data line may be shifted in the first direction during the second frame period.

[0013] According to some exemplary embodiments, the display device may further include a fifth pixel connected to the fifth scan line. The image portion displayed by the fifth pixel connected to the second data line may be shifted in a direction different from the first direction during the second frame period, and the image portion displayed by the fifth pixel connected to the first data line, the third data line, and the fourth data line may be shifted in the first direction during the second frame period.

[0014] According to some exemplary embodiments, the display device may further include a fifth pixel connected to the fifth scan line. The image portion displayed by the fifth pixel connected to the second data line may be shifted in the first direction during the second frame period.

[0015] According to some example embodiments, a portion of an image displayed by the third pixel, the fourth pixel, and the fifth pixel connected to the second data line and the fourth pixel connected to the third data line and the fourth data line may be a logo.

[0016] According to some example embodiments, the logo may be periodically shifted at a first period, and the image portion displayed by the first pixel and the second pixel may be periodically shifted at a second period. The first period and the second period may be different from each other.

[0017] According to some exemplary embodiments, the marker may be shifted alternately clockwise and counterclockwise.

[0018] According to some example embodiments, the edge of the mark may be shifted in a first direction in the second frame period, and a portion of the inner area of ​​the mark may be shifted in a direction different from the first direction in the second frame period.

[0019] According to some exemplary embodiments of the present disclosure, a method for driving a display device is provided, the method comprising: displaying an image in a first image area and a second image area surrounded by the first image area in a first frame period; and in a second frame period immediately following the first frame period, shifting the first image area in a first direction and shifting the second image area in a direction different from the first direction, wherein the second image area has an edge extending in a direction different from the first direction and a second direction perpendicular to the first direction.

[0020] According to some exemplary embodiments, the edge may be provided in one of an elliptical shape and a circular shape.

[0021] According to some example embodiments, a position of an edge in a first frame period and a position of an edge in a second frame period may be different from each other.

[0022] According to some example embodiments, the position of the edge in the second frame period may be located in a first direction of the position of the edge in the first frame period.

[0023] According to some example embodiments, a portion of the inner area of ​​the second image area may be shifted in a direction opposite to the first direction in the second frame period.

[0024] According to some example embodiments, the portion of the inner area of ​​the second image area may be shifted clockwise or counterclockwise in the second frame period.

[0025] According to some exemplary embodiments of the present disclosure, a method for driving a display device is provided, the method comprising: enlarging an image to have a number of grayscale values ​​greater than the number of all pixels; in a first frame period, rotating a first image area of ​​the enlarged image clockwise and displaying the rotated first image area; and in a second frame period immediately following the first frame period, rotating the first image area counterclockwise and displaying the rotated first image area.

[0026] According to some example embodiments, in the first frame period and the second frame period, the rotation angle of the image may be limited to a range in which all pixels display a portion of the rotated image.

[0027] According to some example embodiments, in the first frame period and the second frame period, pixels located at a corner among all pixels display a portion of the rotated image.

[0028] According to some exemplary embodiments, the method may further include: in the first frame period or the second frame period, shifting the second image area surrounded by the first image area in a first direction. The first direction may be a direction different from the clockwise direction and the counterclockwise direction.

[0029] According to some example embodiments, in the first frame period and the second frame period, the rotation angle of the first image region may become larger as being away from a boundary of the first image region and the second image region. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Now, various aspects of some exemplary embodiments will be described more fully below with reference to the accompanying drawings; however, they may be embodied in different forms and should not be construed as being limited to the exemplary embodiments described herein. Instead, these exemplary embodiments are provided so that this disclosure will be more detailed and complete, and will more fully convey the scope and features of the exemplary embodiments to those skilled in the art.

[0031] In the accompanying drawings, dimensions may be exaggerated for clarity. It should be understood that when an element is referred to as being "between" two elements, the element may be the only element between the two elements, or one or more intermediate elements may also be present. The same reference numerals throughout indicate the same elements.

[0032] Figure 1 are diagrams illustrating display devices according to some exemplary embodiments of the present disclosure.

[0033] Figure 2 2 is a diagram illustrating pixels according to some exemplary embodiments of the present disclosure.

[0034] Figure 3 It is shown Figure 2 Schematic diagram of an exemplary driving method of the pixel shown in .

[0035] Figure 4 is a diagram illustrating a shift controller according to some exemplary embodiments of the present disclosure.

[0036] Figure 5 2 is a diagram illustrating a pixel unit according to some exemplary embodiments of the present disclosure.

[0037] Figures 6 to 13 2 is a diagram illustrating a pixel shifting method according to some exemplary embodiments of the present disclosure.

[0038] Figures 14 to 212 is a diagram illustrating a pixel shifting method according to some exemplary embodiments of the present disclosure.

[0039] Figures 22 to 30 2 is a diagram illustrating a pixel shifting method according to some exemplary embodiments of the present disclosure. DETAILED DESCRIPTION

[0040] Hereinafter, various aspects of some exemplary embodiments are described in more detail with reference to the accompanying drawings to enable those skilled in the art to practice the embodiments according to the present disclosure. The embodiments according to the present disclosure can be implemented in various forms and are not limited to the exemplary embodiments described in this specification.

[0041] The description of certain elements, components or features that may not be relevant to enable one of ordinary skill in the art to make and use the present invention may be omitted to more clearly describe the present disclosure, and throughout the specification, the same or similar constituent elements will be indicated by the same reference numerals. Therefore, the same reference numerals may be used in different drawings to identify the same or similar elements.

[0042] In addition, the size and thickness of each component shown in the drawings are arbitrarily shown for better understanding and convenience of description, but the present disclosure is not limited thereto. For clear expression, the thickness of several parts and regions is exaggerated.

[0043] Figure 1 are diagrams illustrating display devices according to some exemplary embodiments of the present disclosure.

[0044] Reference Figure 1 The display device 10 according to some exemplary embodiments of the present disclosure may include a timing controller 11 , a data driver 12 , a scan driver 13 , an emission driver 14 , a pixel unit 15 , and a shift controller 16 .

[0045] The timing controller 11 may receive the grayscale value and control signal of each image frame from an external processor or external source, and may provide control signals suitable for specifications to the data driver 12, the scan driver 13, the emission driver 14, etc. to display an image corresponding to the image frame.

[0046] The timing controller 11 may render grayscale values ​​to correspond to the specifications of the pixel unit 15. For example, an external processor may provide a red grayscale value, a green grayscale value, and a blue grayscale value for each unit point (or sub-pixel). However, for example, when the pixel unit 15 has a Pentile structure, adjacent unit points share one pixel, and thus the pixels may not correspond one-to-one to the corresponding grayscale values. Accordingly, grayscale values ​​may be rendered or generated. When the pixels correspond one-to-one to the corresponding grayscale values, it is not necessary to render the grayscale values. An image generated or displayed according to the grayscale values ​​provided by the timing controller 11 may be referred to as a first image.

[0047] The shift controller 16 may receive a first image, generate a second image by shifting the first image in a first direction, and generate a third image by shifting the second image in a direction, such as a second direction different from the first direction. The first direction and the second direction may be directions orthogonal to each other. The meaning of shifting in the first direction may include the meaning of shifting in a direction opposite to the first direction. Similarly, the meaning of shifting in the second direction may include the meaning of shifting in a direction opposite to the second direction. In some cases, the third image may be generated by shifting the first image in only one of the first direction and the second direction.

[0048] The shift controller 16 may be configured with the same integrated chip (IC) as the timing controller 11. For example, the shift controller 16 may be part of the hardware or part of the software of the timing controller 11. That is, according to some exemplary embodiments, the shift controller 16 may be implemented as part of a component integrated with the timing controller 11, and according to the design of the shift controller 16 and the timing controller 11, the functions of the shift controller 16 may be performed using any suitable combination of hardware (e.g., circuit) components and software. According to some exemplary embodiments, the shift controller 16 may be configured with the same IC as the data driver 12. For example, the shift controller 16 may be part of the hardware or part of the software of the data driver 12. That is, according to some exemplary embodiments, the shift controller 16 may be implemented as part of a component integrated with the data driver 12, and according to the design of the shift controller 16 and the data driver 12, the functions of the shift controller 16 may be performed using any suitable combination of hardware (e.g., circuit) components and software.

[0049] The data driver 12 may generate data voltages to be supplied to the data lines DL1, DL2, DL3, ..., DLj, ..., and DLn by using the grayscale values ​​of the third image and the control signal. For example, the data driver 12 may sample the grayscale values ​​by using the clock signal, and apply data voltages corresponding to the grayscale values ​​to the data lines DL1 to DLn in units of pixel rows (e.g., pixels connected to the same scan line). Here, j and n may be integers greater than 0.

[0050] The scan driver 13 may generate scan signals to be supplied to the scan lines SL1, SL2, SL3, ..., SL(i-1), SLi, ... and SLm by receiving a clock signal, a scan start signal, etc. from the timing controller 11. Here, i and m may be integers greater than 0.

[0051] The scan driver 13 may sequentially supply a scan signal having a pulse of an on level to the scan lines SL1 to SLm. The scan driver 13 may include a scan stage configured in the form of a shift register. The scan driver 13 may generate a scan signal in a manner of sequentially transmitting a scan start signal in the form of a pulse of an on level to a next scan stage under the control of a clock signal.

[0052] The emission driver 14 may generate an emission signal to be provided to the emission lines EL1, EL2, EL3, ..., ELi, ... and ELo by receiving a clock signal, an emission stop signal, etc. Here, o may be an integer greater than 0. For example, the emission driver 14 may sequentially provide an emission signal having a pulse of a cut-off level to the emission lines EL1 to ELo. For example, the emission stage of the emission driver 14 may be configured in the form of a shift register. The emission driver 14 may generate an emission signal in a manner of sequentially transmitting an emission stop signal in the form of a pulse of a cut-off level to the next emission stage under the control of a clock signal. According to some exemplary embodiments, the emission driver 14 may be omitted according to the circuit configuration of the pixel PXij.

[0053] The pixel unit 15 may include a plurality of pixels. Each of the pixels may be connected to a corresponding data line, a corresponding scan line, and a corresponding emission line. For example, a scan input terminal of a pixel PXij may be connected to an i-th scan line SLi, and a data input terminal of the pixel PXij may be connected to a j-th data line DLj.

[0054] Figure 2 2 is a diagram illustrating pixels according to some exemplary embodiments of the present disclosure.

[0055] Reference Figure 2 , the pixel PXij may include transistors T1 , T2 , T3 , T4 , T5 , T6 and T7 , a storage capacitor Cst and a light emitting diode LD.

[0056] In the following, a circuit implemented with a P-type transistor is described as an example. However, those skilled in the art can design a circuit implemented with an N-type transistor by changing the polarity of the voltage applied to the gate terminal. Similarly, those skilled in the art can design a circuit implemented with a combination of a P-type transistor and an N-type transistor. A P-type transistor refers to a transistor in which the amount of current flowing increases when the voltage difference between the gate electrode and the source electrode increases in the negative direction. An N-type transistor refers to a transistor in which the amount of current flowing increases when the voltage difference between the gate electrode and the source electrode increases in the positive direction. The transistor can be configured in various forms including a thin film transistor (TFT), a field effect transistor (FET), a bipolar junction transistor (BJT), etc.

[0057] A gate electrode of the first transistor T1 may be connected to the first node N1, a first electrode of the first transistor T1 may be connected to the second node N2, and a second electrode of the first transistor T1 may be connected to the third node N3. The first transistor T1 may be referred to as a driving transistor.

[0058] The gate electrode of the second transistor T2 may be connected to the i-th scan line SLi, the first electrode of the second transistor T2 may be connected to the j-th data line DLj, and the second electrode of the second transistor T2 may be connected to the second node N2. The second transistor T2 may be referred to as a scan transistor. The first electrode of the second transistor T2 may be the data input terminal DIT of the pixel PXij. In addition, the gate electrode of the second transistor T2 may be the scan input terminal SIT of the pixel PXij.

[0059] The gate electrode of the third transistor T3 may be connected to the i-th scan line SLi, the first electrode of the third transistor T3 may be connected to the first node N1, and the second electrode of the third transistor T3 may be connected to the third node N3. The third transistor T3 may be referred to as a diode-connected transistor. Figure 2 As shown in , in response to the third transistor T3 being turned on according to the scan signal applied to the i-th scan line SLi, the first transistor T1 may become diode-connected.

[0060] A gate electrode of the fourth transistor T4 may be connected to the (i-1)th scan line SL(i-1), a first electrode of the fourth transistor T4 may be connected to the first node N1, and a second electrode of the fourth transistor T4 may be connected to the initialization line INTL. According to some exemplary embodiments, a gate electrode of the fourth transistor T4 may be connected to another scan line. The fourth transistor T4 may be referred to as a gate initialization transistor.

[0061] The gate electrode of the fifth transistor T5 may be connected to the i-th emission line ELi, the first electrode of the fifth transistor T5 may be connected to the first power line ELVDDL, and the second electrode of the fifth transistor T5 may be connected to the second node N2. The fifth transistor T5 may be referred to as an emission transistor. In another embodiment, the gate electrode of the fifth transistor T5 may be connected to another emission line.

[0062] The gate electrode of the sixth transistor T6 may be connected to the i-th emission line ELi, the first electrode of the sixth transistor T6 may be connected to the third node N3, and the second electrode of the sixth transistor T6 may be connected to the anode of the light emitting diode LD. The sixth transistor T6 may be referred to as an emission transistor. According to some exemplary embodiments, the gate electrode of the sixth transistor T6 may be connected to another emission line.

[0063] The gate electrode of the seventh transistor T7 may be connected to the i-th scan line SLi, the first electrode of the seventh transistor T7 may be connected to the initialization line INTL, and the second electrode of the seventh transistor T7 may be connected to the anode of the light emitting diode LD. The seventh transistor T7 may be referred to as a light emitting diode initialization transistor. According to some exemplary embodiments, the gate electrode of the seventh transistor T7 may be connected to another scan line.

[0064] A first electrode of the storage capacitor Cst may be connected to the first power line ELVDDL, and a second electrode of the storage capacitor Cst may be connected to the first node N1.

[0065] The anode of the light emitting diode LD may be connected to the second electrode of the sixth transistor T6, and the cathode of the light emitting diode LD may be connected to the second power line ELVSSL. The light emitting diode LD may be configured as an organic light emitting diode, an inorganic light emitting diode, a quantum dot light emitting diode, etc. Deterioration of the pixel PXij may mean degradation of the light emitting diode LD.

[0066] A first power supply voltage may be applied to the first power supply line ELVDDL, a second power supply voltage may be applied to the second power supply line ELVSSL, and an initialization voltage may be applied to the initialization line INTL. For example, the first power supply voltage may be higher than the second power supply voltage. For example, the initialization voltage may be equal to or higher than the second power supply voltage. For example, the initialization voltage may correspond to a data voltage having a minimum magnitude among the data voltages to be provided. For example, the magnitude of the initialization voltage may be smaller than the magnitude of the data voltage to be provided.

[0067] Figure 3 It is shown Figure 2 Schematic diagram of an exemplary driving method of the pixel shown in .

[0068] First, the data voltage DATA(i-1)j of the (i-1)th pixel is applied to the jth data line DLj, and a scan signal of a turn-on level (logic low level) is applied to the (i-1)th scan line SL(i-1).

[0069] Because a scan signal of a turn-off level (eg, a logic high level) is applied to the i-th scan line SLi, the second transistor T2 is in a turn-off state and prevents the data voltage DATA(i-1)j of the (i-1)-th pixel from being input to the pixel PXij.

[0070] Because the fourth transistor T4 is in the on state, the first node N1 is connected to the initialization line INTL, so that the voltage of the first node N1 is initialized. Because the emission signal of the off level is applied to the i-th emission line ELi, the transistors T5 and T6 are in the off state, and the light emitting diode LD is prevented from emitting light unnecessarily during the application of the initialization voltage.

[0071] Next, the data voltage DATAij of the i-th pixel PXij is applied to the j-th data line DLj, and the scan signal of the on-level is applied to the i-th scan line SLi. Accordingly, the transistors T2, T1, and T3 are in an on state, and the j-th data line DLj and the first node N1 are electrically connected to each other. Therefore, the compensation voltage obtained by subtracting the threshold voltage of the first transistor T1 from the data voltage DATAij is applied to the second electrode (i.e., the first node N1) of the storage capacitor Cst, and the storage capacitor Cst maintains a voltage corresponding to the difference between the first power supply voltage and the compensation voltage. Such a period may be referred to as a threshold voltage compensation period.

[0072] Since the seventh transistor T7 is in the on state, the anode of the light emitting diode LD and the initialization line INTL are connected to each other, and the light emitting diode LD is initialized to a charge amount corresponding to the difference between the initialization voltage and the second power supply voltage.

[0073] Subsequently, when the emission signal of the on level is applied to the i-th emission line ELi, the transistors T5 and T6 may be in a turned-on state. Therefore, a driving current path is formed along the path of the first power line ELVDDL, the fifth transistor T5, the first transistor T1, the sixth transistor T6, the light emitting diode LD and the second power line ELVSSL.

[0074] The amount of driving current flowing in the first electrode and the second electrode of the first transistor T1 is controlled according to the voltage held in the storage capacitor Cst. The light emitting diode LD emits light having a brightness corresponding to the amount of driving current. The light emitting diode LD emits light until an emission signal of a cut-off level is applied to the i-th emission line ELi.

[0075] Figure 4 is a diagram illustrating a shift controller according to some exemplary embodiments of the present disclosure.

[0076] Reference Figure 4 The shift controller 16 according to some exemplary embodiments of the present disclosure may include a frame counter 161 , a shift direction determiner 162 , a first area definer 163 a , a first data organizer 164 a , and a first data calculator 165 a .

[0077] According to some embodiments, the shift controller 16 may further include a second region delimiter 163b, a second data organizer 164b, and a second data calculator 165b. According to some exemplary embodiments in which calculations are only required in one direction, the shift controller 16 may not include the second region delimiter 163b, the second data organizer 164b, and the second data calculator 165b.

[0078] The frame counter 161 may check the number of frames of the first image IMG1. For example, the frame counter 161 may output the number of frames FRn of the target frame based on the vertical synchronization signal Vsync. The vertical synchronization signal Vsync may be a control signal notifying that the supply of data of the previous frame has ended (the end of the previous frame period) and the supply of data of the current frame has started (the beginning of the current frame period). For example, the vertical synchronization signal Vsync may have a pulse form, and the period of generating the pulse of the vertical synchronization signal Vsync may be equal to the period of the image frame. Therefore, the frame counter 161 counts the pulses of the vertical synchronization signal Vsync to check the number of frames of the first image IMG1.

[0079] The first image IMG1 may include grayscale values ​​corresponding to pixels one by one. Therefore, the position of the grayscale value of the first image IMG1 may be described by using the position of the corresponding pixel. In the following, a grayscale row may correspond to a pixel row, and a grayscale column may correspond to a pixel column. As described above, a pixel row may mean pixels connected to the same scan line. A pixel column may mean pixels connected to the same data line.

[0080] The shift direction determiner 162 may output a first shift command SHF1 by determining a shift direction and a shift amount of the first image IMG1 with respect to a first direction. The first shift command SHF1 corresponding to the frame number FRn may be pre-stored in a lookup table (LUT) in a scene form or generated in real time by an algorithm.

[0081] The shift direction of the first shift command SHF1 may be the first direction or the opposite direction of the first direction. The shift amount of the first shift command SHF1 may be less than the width of one pixel. For example, the shift amount may correspond to about 1 / 32 of the width of a pixel. However, for the convenience of description, the shift amount may be exaggerated in the following figures.

[0082] Meanwhile, the shift direction determiner 162 may output a second shift command SHF2 by determining a shift direction and a shift amount of the first image IMG1 with respect to the second direction.

[0083] The first area limiter 163a may provide first window limit information DW1 based on the first shift command SHF1, the first window limit information DW1 being information obtained by dividing at least a portion of the first image IMG1 into a first window area, a second window area, and a third window area. The second window area may be located in a first direction of the first window area. The third window area may be located between the first window area and the second window area.

[0084] The first area definer 163a may set the width of the first window area and the width of the second window area to become larger, and set the width of the third window area to become smaller as the shift amount becomes larger. The first area definer 163a may set the width of the first window area and the width of the second window area to become smaller, and set the width of the third window area to become larger as the shift amount becomes smaller.

[0085] When the shift direction is the first direction, the first area limiter 163a may set the width of the second window area to be greater than the width of the first window area. The first window area may be an enlarged area (or an expanded area), the second window area may be a reduced area (or a reduced area), and the third window area may be a non-zoomed area (or a maintained area).

[0086] When the shift direction is the opposite direction of the first direction, the first area limiter 163a may set the width of the second window area to be smaller than the width of the first window area. The first window area may be a zoom-out area, the second window area may be an enlargement area, and the third window area may be a non-zooming area.

[0087] According to some exemplary embodiments, the first area qualifier 163a may set the first window area, the second window area, and the third window area in units of grayscale rows. According to some exemplary embodiments, the first area qualifier 163a may set the first window area, the second window area, and the third window area multiple times on the same grayscale row. The first area qualifier 163a may provide a plurality of first window definition information DW1 in one frame period.

[0088] The second area limiter 163b may provide second window limit information DW2 based on the second shift command SHF2, the second window limit information DW2 being information obtained by dividing at least a portion of the first image IMG1 into a first window area, a second window area, and a third window area. The first window area may be located in a second direction of the second window area. The third window area may be located between the first window area and the second window area.

[0089] The second area qualifier 163b may set the width of the first window area and the width of the second window area to become larger, and set the width of the third window area to become smaller as the shift amount becomes larger. The second area qualifier 163b may set the width of the first window area and the width of the second window area to become smaller, and set the width of the third window area to become larger as the shift amount becomes smaller.

[0090] When the shift direction is the second direction, the second area definer 163b may set the width of the first window area to be greater than the width of the second window area. The first window area may be a zoom-out area, the second window area may be an enlargement area, and the third window area may be a non-zooming area.

[0091] When the shift direction is the opposite direction of the second direction, the second area limiter 163b may set the width of the first window area to be smaller than the width of the second window area. The first window area may be a zoom-in area, the second window area may be a zoom-out area, and the third window area may be a non-zooming area.

[0092] According to some exemplary embodiments, the second area qualifier 163b may set the first window area, the second window area and the third window area in units of grayscale columns. According to some exemplary embodiments, the second area qualifier 163b may set the first window area, the second window area and the third window area multiple times on the same grayscale column.

[0093] The first data organizer 164a may determine or define the pixel windows to be included in each of the first window area, the second window area, and the third window area based on the first window definition information DW1. For example, the first data organizer 164a may determine the number and width of the pixel windows to be included in each of the first window area, the second window area, and the third window area. Each of the pixel windows may be ratio information about the grayscale value at the mapping (overlapping) position.

[0094] According to some exemplary embodiments, the width of the pixel window of the zoomed-in area, the width of the pixel window of the zoomed-out area, and the width of the pixel window of the non-zoomed area may be set or predetermined. Therefore, the number of pixel windows to be included in each of the first window area, the second window area, and the third window area may be determined based on the width of the first window area, the width of the second window area, and the width of the third window area included in the first window definition information DW1. Accordingly, the first data organizer 164a may provide the first data organization information DC1 as information about the pixel windows to be mapped to the first image IMG1.

[0095] According to some exemplary embodiments, the first data organizer 164a may receive a plurality of first window definition information DW1 in one frame period. For example, in the case where the first window definition information DW1 is received twice in one frame period, the first pixel window may be first organized based on the first window definition information DW1 received initially. Then, the second pixel window may be generated by reorganizing some pixel windows overlapping with the second received first window definition information DW1 in the first pixel window (by re-adjusting the ratio of grayscale values). Therefore, even when the first data organizer 164a receives a plurality of first window definition information DW1 in one frame period, the first data organizer 164a may provide the first data organization information DC1 only once. Accordingly, the amount of calculation of the first data calculator 165a may be minimized or relatively reduced.

[0096] The second data organizer 164b may determine the pixel windows to be included in each of the first window area, the second window area, and the third window area based on the second window definition information DW2. For example, the second data organizer 164b may determine the number and width of the pixel windows to be included in each of the first window area, the second window area, and the third window area.

[0097] According to some exemplary embodiments, the width of the pixel window of the zoomed-in area, the width of the pixel window of the zoomed-out area, and the width of the pixel window of the non-zoomed area may be set or predetermined. Therefore, the number of pixel windows to be included in each of the first window area, the second window area, and the third window area may be determined based on the width of the first window area, the width of the second window area, and the width of the third window area included in the second window definition information DW2. Accordingly, the second data organizer 164b may provide second data organization information DC2 as information about the pixel windows to be mapped to the first image IMG1.

[0098] According to some exemplary embodiments, the second data organizer 164b may receive a plurality of second window definition information DW2 in one frame period. For example, in the case where the second window definition information DW2 is received twice in one frame period, the first pixel window may be first or preliminarily organized based on the first received second window definition information DW2. Then, the second pixel window may be generated by reorganizing some pixel windows overlapping with the second window definition information DW2 received twice in the first pixel window (by re-adjusting the ratio of grayscale values). Therefore, even when the second data organizer 164b receives a plurality of second window definition information DW2 in one frame period, the second data organizer 164b may provide the second data organization information DC2 only once. Accordingly, the amount of calculation of the second data calculator 165b may be minimized.

[0099] The first data calculator 165 a may generate a grayscale value of the second image IMG2 by substituting the grayscale value of the first image IMG1 into the first data organization information DC1 for calculation.

[0100] The second data calculator 165b may generate a grayscale value of the third image IMG3 by substituting the grayscale value of the second image IMG2 into the second data organization information DC2 for calculation.

[0101] Figure 5 2 is a diagram illustrating a pixel unit according to some exemplary embodiments of the present disclosure.

[0102] exist Figure 5 In the accompanying drawings, for the convenience of description, it is assumed that the pixel unit 15 includes pixels of the same first color. The image may be a single color image. According to some exemplary embodiments, the pixel unit 15 may also include pixels of a second color, and the embodiments of the present disclosure may be equally applied to the pixels of the second color. In addition, the pixel unit 15 may also include pixels of a third color, and the embodiments of the present disclosure may be equally applied to the pixels of the third color. When the embodiments of the present disclosure are overlappedly applied to the pixels of the first color, the pixels of the second color, and the pixels of the third color, the image may be a multi-color image.

[0103] The pixels of the first color, the second color, and the third color may be arranged in various structures. When the pixels of the pixel unit 15 are arranged in a Pentile structure, the pixels of the first color, the second color, the first color, and the third color may be repeatedly arranged about the same scan line.

[0104] Hereinafter, the area, width, length, etc. of each pixel means the area, width, length, etc. of the light-emitting region of the pixel (i.e., the emission layer of the light-emitting diode), and does not mean the area, width, length, etc. of the pixel circuit. The area, width, length, etc. of each pixel may vary depending on the color of the pixel. However, for the convenience of description, it is assumed that the pixels have the same shape and size.

[0105] According to some exemplary embodiments, the scan lines SLG1 to SLG5 may extend in a first direction DR1, and the data lines DLG1a, DLG3, DLG2, DLG4, and DLG1b may extend in a second direction DR2. The first direction DR1 and the second direction DR2 may be orthogonal to each other. A dummy line connecting the first pixel of each scan line may be defined as a first edge EDG1, and a dummy line connecting the last pixel of each scan line may be defined as a second edge EDG2.

[0106] The first pixel PX1 may be connected to the first scan line SLG1. The second pixel PX2 may be connected to the second scan line SLG2. The third pixel PX3 may be connected to the third scan line SLG3. The fourth pixel PX4 may be connected to the fourth scan line SLG4. The fifth pixel PX5 may be connected to the fifth scan line SLG5.

[0107] The first scan line SLG1, the second scan line SLG2, the third scan line SLG3, the fourth scan line SLG4, and the fifth scan line SLG5 may be sequentially arranged along the second direction DR2. According to some exemplary embodiments, at least one scan line may be further located between the respective scan lines SLG1 to SLG5. For example, at least one scan line may be further located between the third scan line SLG3 and the fourth scan line SLG4. In addition, for example, at least one scan line may be further located between the fourth scan line SLG4 and the fifth scan line SLG5.

[0108] The third data line DLG3 may be located between some of the first data lines DLG1a and the second data line DLG2, and the fourth data line DLG4 may be located between the second data line DLG2 and the remaining first data lines DLG1b. In some embodiments, at least one data line may be further located between the respective data lines DLG1a, DLG3, DLG2, DLG4, and DLG1b.

[0109] Hereinafter, image portions displayed by the third, fourth, and fifth pixels PX3, PX4, and PX5 connected to the second data line DLG2 and the fourth pixel PX4 connected to the third and fourth data lines DLG3 and DLG4 are assumed and described as a second image region.

[0110] Figures 6 to 13 2 is a diagram illustrating a pixel shifting method according to some exemplary embodiments of the present disclosure.

[0111] Reference Figure 6 , the first image IMG1 may include a first image area GLA and a second image area LCA. The second image area LCA may be display information fixed with respect to time, such as a logo. The first image area GLA may be display information variable with respect to time, such as a general moving image. Therefore, according to some exemplary embodiments of the present disclosure, the shift amount and shift frequency of the second image area LCA may be greater than the shift amount and shift frequency of the first image area GLA.

[0112] The second image area LCA may have an edge LCB and may be surrounded by the first image area GLA at the edge LCB. The edge LCB may extend in a direction different from the first direction DR1 and the second direction DR2 (e.g., an oblique direction). According to some exemplary embodiments, the edge LCB may be set in the shape of one of an ellipse and a circle. According to some exemplary embodiments, the edge LCB may be set in the shape of a rhombus, a trapezoid, a quadratic curve, etc.

[0113] The first image IMG1 may be configured with a plurality of grayscale lines GDR1 to GDR5 .

[0114] The grayscale value of the first grayscale row GDR1 may correspond to the first pixel PX1 of the first scan line SLG1. The grayscale value of the second grayscale row GDR2 may correspond to the second pixel PX2 of the second scan line SLG2. The grayscale value of the third grayscale row GDR3 may correspond to the third pixel PX3 of the third scan line SLG3. The grayscale value of the fourth grayscale row GDR4 may correspond to the fourth pixel PX4 of the fourth scan line SLG4. The grayscale value of the fifth grayscale row GDR5 may correspond to the fifth pixel PX5 of the fifth scan line SLG5.

[0115] First, refer to Figure 7 , the shift direction determiner 162 may provide a first shift command SHF11 with respect to the first image area GLA. For example, in the first shift command SHF11, the shift direction may be the first direction DR1, and the shift amount may be 1 / 2 of the pixel width W3. The shift amount may be determined with reference to the pixels of the third window area IMA3. Accordingly, the first area qualifier 163a may set the width of the second window area IMA2 to be greater than the width of the first window area IMA1. That is, the second window area IMA2 may be set as a reduced area, and the first window area IMA1 may be set as an enlarged area.

[0116] Next, the first data organizer 164a may set pixel windows PW1 and PW2 having a first width W1 to be included in the first window area IMA1, set pixel windows PW8 and PW9 having a second width W2 to be included in the second window area IMA2, and set pixel windows PW3, PW4, PW6, and PW7 having a third width W3 to be included in the third window area IMA3. For example, the number of pixel windows to be included in the first window area IMA1 and the number of pixel windows to be included in the second window area IMA2 may be set to be equal to each other. As described above, when the widths W1, W2, and W3 of the pixel windows are set or predetermined, it may be determined that two pixel windows PW1 and PW2 are included in the first window area IMA1, two pixel windows PW8 and PW9 are included in the second window area IMA2, and other pixel windows PW3, PW4, PW6, and PW7 are included in the third window area IMA3. For example, assume a case where the first width W1 is set to ¾ of the third width W3 and the second width W2 is set to 5 / 4 of the third width W3. The first data organization information DC1 about the pixel window PW1 may be provided as shown in Equation 1 below.

[0117] Equation 1

[0118] DC1[PW1]=(V[PXD1]*W3*3 / 4) / W1=V[PXD1]

[0119] DC1[PW1] is first data organization information DC1 about the pixel window PW1, and V[PXD1] is a variable indicating a gray value PXD1 mapped (overlapped) to the pixel window PW1.

[0120] Similarly, the first data organization information DC1 about the pixel window PW2 may be provided as shown in Equation 2 below.

[0121] Equation 2

[0122] DC1[PW2]=(V[PXD1]*W3*1 / 4+V[PXD2]*W3*1 / 2) / W1=V[PXD1]*1 / 3+V[PXD2]*2 / 3

[0123] DC1[PW2] is the first data organization information DC1 about the pixel window PW2, and V[PXD1] and V[PXD2] are variables indicating gray values ​​PXD1 and PXD2 mapped to the pixel window PW2.

[0124] Similarly, the first data organization information DC1 about the pixel window PW3 may be provided as shown in Equation 3 below.

[0125] Equation 3

[0126] DC1[PW3]=(V[PXD2]*W3*2 / 4+V[PXD3]*W3*2 / 4) / W3=V[PXD2]*1 / 2+V[PXD3]*1 / 2

[0127] DC1[PW3] is the first data organization information DC1 about the pixel window PW3, and V[PXD2] and V[PXD3] are variables indicating gray values ​​PXD2 and PXD3 mapped to the pixel window PW3. The calculation of the pixel windows PW4 to PW7 about the third window area IMA3 is similar to the calculation using equation 3, and therefore its description will be omitted.

[0128] Similarly, the first data organization information DC1 about the pixel window PW8 may be provided as shown in Equation 4 below.

[0129] Equation 4

[0130] DC1[PW8]=(V[PXD7]*W3*2 / 4+V[PXD8]*W3*3 / 4) / W2=V[PXD7]*2 / 5+V[PXD8]*3 / 5

[0131] DC1[PW8] is the first data organization information DC1 about the pixel window PW8, and V[PXD7] and V[PXD8] are variables indicating gray values ​​PXD7 and PXD8 mapped to the pixel window PW8.

[0132] Similarly, the first data organization information DC1 about the pixel window PW9 may be provided as shown in Equation 5 below.

[0133] Equation 5

[0134] DC1[PW9]=(V[PXD8]*W3*1 / 4+V[PXD9]*W3*4 / 4) / W2=V[PXD8]*1 / 5+V[PXD9]*4 / 5

[0135] DC1[PW9] is the first data organization information DC1 about the pixel window PW9, and V[PXD8] and V[PXD9] are variables indicating gray values ​​PXD8 and PXD9 mapped to the pixel window PW9.

[0136] The above equations 1 to 5 have been described for grayscale row GDR3, but can be applied to all grayscale rows GDR1, GDR2, GDR3, GDR4 and GDR5 of the first image area GLA in the same manner based on the same first shift command SHF11. Thus, the first pixel window of the first image IMG1 can be organized.

[0137] Next, refer to Figure 8, the shift direction determiner 162 may provide first shift commands SHF13, SHF14, and SHF15 with respect to the second image area LCA.

[0138] Assume that there is a situation where the edge LCB of the second image area LCA is provided by the identification detection algorithm, or is set or predetermined. The edges EDG13 and EDG23 on the third grayscale row GDR3 may correspond to a portion of the edge LCB, the edges EDG14 and EDG24 on the fourth grayscale row GDR4 may correspond to a portion of the edge LCB, and the edges EDG15 and EDG25 on the fifth grayscale row GDR5 may correspond to a portion of the edge LCB. The third grayscale row portion LDR3 may be defined as a grayscale value between the edges EDG13 and EDG23 among the grayscale values ​​of the third grayscale row GDR3. The fourth grayscale row portion LDR4 may be defined as a grayscale value between the edges EDG14 and EDG24 among the grayscale values ​​of the fourth grayscale row GDR4. The fifth grayscale row portion LDR5 may be defined as a grayscale value between the edges EDG15 and EDG25 among the grayscale values ​​of the fifth grayscale row GDR5.

[0139] For example, the edges EDG13 and EDG15 may be located in the first direction DR1 of the third data line DLG3. The edge EDG14 may be located in the opposite direction of the first direction DR1 of the third data line DLG3. The edges EDG23 and EDG25 may be located in the opposite direction of the first direction DR1 of the fourth data line DLG4. The edge EDG24 may be located in the first direction DR1 of the fourth data line DLG4.

[0140] exist Figure 5 and Figure 8 In the figure, for convenience, one third data line DLG3 and one fourth data line DLG4 are shown. However, the second image area LCA is large enough, and a plurality of third data lines DLG3 and a plurality of fourth data lines DLG4 may be provided.

[0141] The first window area IMA13, the second window area IMA23, and the third window area IMA33 may be determined at the third grayscale line portion LDR3 based on the first shift command SHF13. The shift direction of the first shift command SHF13 may be a direction different from the first direction DR1 (e.g., the opposite direction of the first direction DR1). Therefore, the first window area IMA13 may be larger than the second window area IMA23. Subsequently, the pixel window of each of the window areas IMA13, IMA23, and IMA33 is set by the first data organizer 164a, and the first pixel window is reorganized so that the second pixel window of the first image IMG1 can be organized (see Equation 6).

[0142] Equation 6

[0143] DC1[2ndPW]=DC1[1stPW_1]*wgh1+DC1[1stPW_2]*wgh2

[0144] DC1[2ndPW] is the first data organization information DC1 about the second pixel window, DC1[1stPW_1] and DC1[1stPW_2] are the first data organization information DC1 about two adjacent first pixel windows, and wgh1 and wgh2 may be weights (overlapping ratios).

[0145] The finally generated first data organization information DC1 may include information about the second pixel window of the third gray line portion LDR3 and information about the first pixel window of the remaining third gray lines GDR3 except the third gray line portion LDR3.

[0146] Information about the pixel windows of the fourth gray line portion LDR4 and the fifth gray line portion LDR5 may also be included in the first data organization information DC1 in the same manner.

[0147] The first data calculator 165 a may convert the first image IMG1 into the second image IMG2 by using the first data organization information DC1 .

[0148] Reference Fig. 9 , showing the shift controller 16 in the first frame period 1FP by Figures 6 to 8 The second image IMG2 is generated by the process shown in FIG. In the first frame period 1FP, the first image area GLA has been shifted in the first direction DR1.

[0149] Reference Figure 7 As shown in the description, the shift amount of the grayscale values ​​PXD1 and PXD9 adjacent to the edges EDG1 and EDG2 overlapping the first window area IMA1 and the second window area IMA2 can be the smallest. In addition, the shift amount of the grayscale values ​​PXD3 to PXD7 located in the third window area IMA3 can be the largest. Similarly, in Figure 8 In the embodiment, the shift amount of the grayscale value adjacent to the edge LCB of the second image area LCA can be minimized.

[0150] Therefore, despite the first shift commands SHF13, SHF14, and SHF15 regarding the second image area LCA, the edge LCB of the second image area LCA may be roughly shifted in the first direction DR1 by the first shift command SHF11 regarding the first image area GLA. That is, the position of the edge LCB before the edge LCB shift and the position of the edge LCB in the first frame period 1FP after the edge LCB shift may be different from each other.

[0151] However, the center portion of the second image area LCA may correspond to the third window areas IMA33, IMA34, and IMA35 based on the first shift commands SHF13, SHF14, and SHF15, and to the second window area IMA2 based on the first shift command SHF11. Therefore, the center portion of the second image area LCA may be shifted in the opposite direction of the first direction DR1 according to the first shift commands SHF13, SHF14, and SHF15 having a relatively larger shift amount than the first shift command SHF11. That is, in the first frame period 1FP, a portion of the inner area of ​​the second image area LCA may be shifted in the opposite direction of the first direction DR1.

[0152] According to some exemplary embodiments, the second image area LCA may be periodically shifted in a first period, and the first image area GLA may be periodically shifted in a second period. The first period and the second period may be different from each other. For example, the first period may be shorter than the second period. For example, the first shift command SHF11 regarding the first image area GLA may be generated in units of three frame periods, and the first shift commands SHF13, SHF14, and SHF15 regarding the second image area LCA may be generated in units of two frame periods. Accordingly, a sufficient shift amount may be provided to the second image area LCA that is severely degraded due to identification symbols, etc., and the randomness of the shift of the second image area LCA is increased, which is more effective in the degradation distribution.

[0153] Reference Fig.10 , showing a comparative example in which the edge LCBra of the second image area LCAra is arranged in a quadrilateral shape. Figures 6 to 8 , but the middle areas of the upper LCBrat and the lower LCBrab of the edge LCBra are shifted in the direction opposite to the shift direction of the first image area GLA over the entire long range, and therefore the user is likely to observe the edge LCBra.

[0154] On the other hand, referring to Fig. 9 , the portion of the edge LCB that conflicts with the shift direction of the first image area GLA can be appropriately distributed by the edge LCB of the second image area LCA being set to a circular shape, and therefore, the user will most likely not observe the edge LCB.

[0155] Reference Fig.11 , the edge LCB of the second image area LCA may be set to an elliptical shape. Because the edge LCB having an elliptical shape is similar to a human viewing angle shape, the edge LCB may exhibit a considerable influence on the invisibility of the edge LCB. Compared to when the edge LCB is set to a circular shape, the randomness of the shift of the second image area LCA is further increased, which is more effective in the degradation distribution.

[0156] Reference Fig.12 and Fig.13 , shows window areas based on exemplary first shift commands SHF12, SHF16, SHF17, and SHF18 in a second frame period 2FP immediately following the first frame period 1FP.

[0157] Fig.12 The shift amount of the first shift command SHF12 shown in FIG. 1 may be greater than Figure 7 The shift amount of the first shift command SHF11 is shown in FIG. Figure 7 The first window area IMA1 shown in FIG. 1 includes two pixel windows PW1 and PW2, but Fig.12 The first window area IMA1 shown in FIG. 1 may include three pixel windows PW1, PW2, and PW3. Figure 7 The second window area IMA2 shown in FIG. 1 includes two pixel windows PW8 and PW9, but Fig.12 The second window area IMA2 shown in FIG. 1 may include three pixel windows PW7, PW8, and PW9. Figure 7 The number of pixel windows PW3 to PW7 in the third window area IMA3 shown in FIG. 1 may be greater than that included in the Fig.12 The number of pixel windows PW4 to PW6 in the third window area IMA3 is shown in FIG.

[0158] Fig.13 The shift amount of the first shift commands SHF16, SHF17 and SHF18 shown in FIG. 1 may be greater than Figure 8 Shift amounts of the first shift commands SHF13, SHF14, and SHF15 are shown in . Therefore, some repeated descriptions may be omitted.

[0159] As described above, according to some exemplary embodiments, in the second frame period 2FP immediately following the first frame period 1FP, image portions displayed by the first pixel PX1, the second pixel PX2, and the third pixel PX3 connected to the first data lines DLG1a and DLG1b may be shifted in the first direction DR1 relative to the position in the first frame period 1FP. In the second frame period 2FP, image portions displayed by the first pixel PX1 and the second pixel PX2 connected to the second data line DLG2 may be shifted in the first direction DR1. In the second frame period 2FP, image portions displayed by the third pixel PX3 connected to the second data line DLG2 may be shifted in a direction different from the first direction DR1.

[0160] As described above, according to some exemplary embodiments, in the second frame period 2FP, the image portion displayed by the fourth pixel PX4 connected to the third data line DLG3 and the fourth data line DLG4 may be shifted in a direction different from the first direction DR1. In the second frame period 2FP, the image portion displayed by the third pixel PX3 connected to the third data line DLG3 and the fourth data line DLG4 may be shifted in the first direction DR1.

[0161] As described above, according to some example embodiments, in the second frame period 2FP, a portion of an image displayed by the fourth pixel PX4 connected to the first data lines DLG1a and DLG1b may be shifted in the first direction DR1.

[0162] As described above, according to some exemplary embodiments, in the second frame period 2FP, the image portion displayed by the fifth pixel PX5 connected to the second data line DLG2 may be shifted in a direction different from the first direction DR1. In the second frame period 2FP, the image portion displayed by the fifth pixel PX5 connected to the first data lines DLG1a and DLG1b, the third data line DLG3, and the fourth data line DLG4 may be shifted in the first direction DR1.

[0163] Figures 14 to 21 2 is a diagram illustrating a pixel shifting method according to some exemplary embodiments of the present disclosure.

[0164] Reference Fig.14 and Fig.15 , a process of converting the first image IMG1 into the second image IMG2 through the shift direction determiner 162, the first region definer 163a, the first data organizer 164a, and the first data calculator 165a will be described.

[0165] Assume that there is a case where the shift direction determiner 162 provides a first shift command in the first direction DR1 with respect to the first image area GLA. Figure 6 and Figure 7 The description is the same as that shown in , and therefore will be omitted Fig.14 Related duplicate descriptions.

[0166] Reference Fig.15 The case where the first shift command SHF20 in the opposite direction of the first direction DR1 is provided to the fifth grayscale line portion LDR5 is the same as Figure 8 Therefore, the first area definer 163a may set the first window area IMA15 to be larger than the second window area IMA25 at the fifth grayscale line portion LDR5.

[0167] However, the case where the first shift command SHF19 in the first direction DR1 is provided to the third gray line portion LDR3 is different from the case where the first shift command SHF19 in the first direction DR1 is provided to the third gray line portion LDR3. Figure 8 Therefore, the first area definer 163a may set the first window area IMA13 to be smaller than the second window area IMA23 at the third grayscale line portion LDR3.

[0168] In addition, the case where no first shift command is provided to the fourth grayscale line portion LDR4 is the same as Figure 8 The first region definer 163a may not set a window region at the fourth grayscale line portion LDR4.

[0169] Next, the first data organizer 164a may set a pixel window based on a window area (eg, a set or predetermined window area), and the first data calculator 165a may convert the first image IMG1 into the second image IMG2 based on the pixel window.

[0170] Reference Fig.16 and Fig.17 , a process of converting the second image IMG2 into the third image IMG3 through the shift direction determiner 162, the second region definer 163b, the second data organizer 164b, and the second data calculator 165b will be described.

[0171] Reference Fig.16 , the second image IMG2 may be configured with a plurality of grayscale columns GDC1 to GDC5. The grayscale values ​​of the first grayscale column GDC1 and the second grayscale column GDC2 may correspond to pixels connected to the first data line DLG1a. The grayscale value of the third grayscale column GDC3 may correspond to pixels connected to one of the third data lines DLG3. The grayscale value of the fourth grayscale column GDC4 may correspond to pixels connected to one of the second data lines DLG2. The grayscale value of the fifth grayscale column GDC5 may correspond to pixels connected to one of the fourth data lines DLG4.

[0172] A case is provided in which no second shift command in the second direction DR2 is provided in the first image area GLA.

[0173] Reference Fig.17, edges EDG33 and EDG43 may correspond to a portion of edge LCB on the third gray column GDC3, edges EDG34 and EDG44 may correspond to a portion of edge LCB on the fourth gray column GDC4, and edges EDG35 and EDG45 may correspond to a portion of edge LCB on the fifth gray column GDC5. The third gray column portion LDC3 may be defined as a gray value between edges EDG33 and EDG43 among the gray values ​​of the third gray column GDC3. The fourth gray column portion LDC4 may be defined as a gray value between edges EDG34 and EDG44 among the gray values ​​of the fourth gray column GDC4. The fifth gray column portion LDC5 may be defined as a gray value between edges EDG35 and EDG45 among the gray values ​​of the fifth gray column GDC5.

[0174] For example, the edges EDG33 and EDG35 may be located in the second direction DR2 of the third scan line SLG3. The edge EDG34 may be located in the opposite direction of the second direction DR2 of the third scan line SLG3. The edges EDG43 and EDG45 may be located in the opposite direction of the second direction DR2 of the fifth scan line SLG5. The edge EDG44 may be located in the second direction DR2 of the fifth scan line SLG5.

[0175] The shift direction determiner 162 may provide a second shift command SHF21 in the opposite direction of the second direction DR2 with respect to the third gray column portion LDC3. Therefore, the second area definer 163b may set the first window area IMA13c to be smaller than the second window area IMA23c at the third gray column portion LDC3.

[0176] In addition, the shift direction determiner 162 may not provide any second shift command with respect to the fourth gray column portion LDC4. The second region definer 163b may not set a window region with respect to the fourth gray column portion LDC4.

[0177] In addition, the shift direction determiner 162 may provide a second shift command SHF22 in the second direction DR2 with respect to the fifth gray column portion LDC5. Therefore, the second area definer 163b may set the first window area IMA15c to be larger than the second window area IMA25c at the fifth gray column portion LDC5.

[0178] Next, the second data organizer 164b may set a pixel window based on a window area (eg, a set or predetermined window area), and the second data calculator 165b may convert the second image IMG2 into a third image IMG3 based on the pixel window.

[0179] Reference Fig.18The case where the portion of the inner area of ​​the second image area LCA in the first frame period 1FP is rotated counterclockwise in the third image IMG3 is the same as Fig. 9 However, when the rotation angle AG1 is too large, the rotation of the second image area LCA may be observed by the user, and therefore, the maximum value of the rotation angle AG1 may be set or predetermined within a range in which the user cannot observe the rotation of the second image area LCA.

[0180] Reference Fig.19 and Fig. 20 In the second frame period 2FP, the Fig.15 and Fig.17 23 and SHF24 and the second shift commands SHF25 and SHF26 in the opposite direction shown in FIG. Fig.21 , in the third image IMG3, part of the inner area of ​​the second image area LCA may be rotated clockwise in the second frame period 2FP. However, when the rotation angle AG2 is too large, the rotation of the second image area LCA may be observed by the user, and therefore, the maximum value of the rotation angle AG2 may be set or predetermined within a range in which the user cannot observe the rotation of the second image area LCA. For example, the maximum value of the rotation angle AG1 may be determined as (-) 2 degrees, and the maximum value of the rotation angle AG2 may be determined as (+) 2 degrees. Accordingly, the second image area LCA may be shifted alternately clockwise and counterclockwise within the rotation angle range.

[0181] When the second image area LCA is too small, the shift amount of the second image area LCA may not be sufficiently ensured only by linear shift in the first direction DR1 or the second direction DR2. However, according to some exemplary embodiments, even when the second image area LCA is small, a sufficient shift amount can be ensured, and it is necessary to limit the rotation angles AG1 and AG2 to prevent excessive shifting.

[0182] The central portion of the second image area LCA may hardly have any shift amount due to the rotation, but the shift amount may be compensated by the shift of the first image area GLA.

[0183] according to Figures 14 to 21 In the embodiment shown in Figures 14 to 21 The configuration of the embodiment shown in Fig.12 and Fig.13 The configuration of the embodiment shown in FIG. 2 is different in that the image portion displayed by the fifth pixel PX5 connected to the second data line DLG2 is shifted in the first direction DR1 in the second frame period 2FP (see FIG. 2A ). Fig.19 ).

[0184] Figures 22 to 302 is a diagram illustrating a pixel shifting method according to some exemplary embodiments of the present disclosure.

[0185] Reference Fig. 22 , shows a case where the third image IMG3 is configured using only the first image area GLA. The first image area GLA can be shifted alternately counterclockwise and clockwise about the center point GLO.

[0186] Reference Fig.23 , the shift amount of the gray value position about the arbitrary line TL1 of the third image IMG3 is shown as a graph TLM1. Referring to the graph TLM1, it can be seen that the shift amount is insufficient near the center point GLO and near the edges corresponding to the first window area and the second window area.

[0187] Reference Fig.24 , before applying the pixel shifting method, the first image IMG1 may be enlarged to have grayscale values ​​whose number is greater than the number of all pixels of the pixel unit 15. That is, when the first image IMG1 is alternately rotated clockwise or counterclockwise after the first image IMG1 is first enlarged, the proportion of the portion corresponding to the first window area and the second window area is relatively reduced, and thus the insufficient shift amount near the edge can be compensated. This refers to Fig.25 The curve diagram shown in TLM2.

[0188] Reference Fig.26 , shows a case where the first image IMG1 is rotated alternately clockwise or counterclockwise without setting the first window area to the third window area in the enlarged first image IMG1. Fig. 27 As shown in the curve graph TLM3 shown in , the amount of shift near the edge can be compensated. However, depending on the rotation angle, there may be pixels that do not cover the third image IMG3. In particular, the probability that the third image IMG3 will not cover the pixels PXLU, PXRU, PXLD and PXRD located at the corners among all pixels is the highest. Therefore, in the first frame period 1FP and the second frame period 2FP, the rotation angle of the third image IMG3 can be limited to a range in which all pixels display a portion of the third image IMG3 after rotation. For example, in the first frame period 1FP and the second frame period 2FP, the rotation angle of the third image IMG3 can be limited so that the pixels PXLU, PXRU, PXLD and PXRD display a portion of the third image IMG3 after rotation.

[0189] Reference Fig.28 , in the first frame period 1FP or the second frame period 2FP, the second image area GLA2 surrounded by the first image area GLA1 may be further shifted in the first direction DR1. The first direction DR1 may be a direction different from the clockwise direction and the counterclockwise direction.

[0190] Reference Fig.29 As can be seen from the graph TLM4, the shift amount of the center point GLO is significantly increased due to the shift amount added when the second image area GLA2 is shifted.

[0191] Reference Fig.30 , in the first frame period 1FP or the second frame period 2FP, the rotation angle (or angular velocity) of the first image area GLA1 may increase as it moves away from the boundary BD between the first image area GLA1 and the second image area GLA2. That is, the rotation angle of the second point PT2 away from the boundary BD may be greater than the rotation angle of the first point PT1 close to the boundary BD. In addition, the rotation angle of the third point PT3 may be greater than the rotation angle of the second point PT2.

[0192] Accordingly, excessive rotation near the boundary BD can be prevented or reduced, and thus the boundary BD can be prevented or reduced from being observed or perceived by the user's eyes. In addition, the shift amount near the edge of the third image IMG3 can be sufficiently ensured.

[0193] In the display device and the driving method thereof according to the present disclosure, the shift amount of the target image area may be partially increased so that the pixel shift effect may be enhanced.

[0194] The electronic device or electrical device and / or any other related device or component according to the embodiment of the present invention described herein can be implemented using any appropriate hardware, firmware (e.g., application specific integrated circuit), software, or a combination of software, firmware and hardware. For example, the various components of these devices can be formed on an integrated circuit (IC) chip or on a separate IC chip. In addition, the various components of these devices can be implemented on a flexible printed circuit film, a tape carrier package (TCP), a printed circuit board (PCB), or formed on a substrate. In addition, the various components of these devices can be processes or threads that run on one or more processors in one or more computing devices to execute computer program instructions and interact with other system components to perform various functions described herein. Computer program instructions are stored in a memory, which can be implemented in a computing device using a standard storage device (e.g., such as a random access memory (RAM)). Computer program instructions can also be stored in other non-temporary computer-readable media (e.g., such as CD-ROMs, flash drives, etc.). In addition, those skilled in the art should recognize that the functions of various computing devices can be combined or integrated into a single computing device, or the functions of a specific computing device can be distributed on one or more other computing devices without departing from the spirit and scope of the exemplary embodiments of the present invention.

[0195] Various aspects of some exemplary embodiments have been disclosed herein, and although specific terms are employed, they are used and interpreted only in a general and descriptive sense and not for limiting purposes. In some cases, as will be apparent to one of ordinary skill in the art, features, characteristics, and / or elements described in conjunction with a particular embodiment may be used alone or in combination with features, characteristics, and / or elements described in conjunction with other embodiments, unless otherwise expressly indicated, as of the filing of this application. Accordingly, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the present disclosure as set forth in the appended claims and their equivalents.

Claims

1. A display device, comprising: Shift controller; A plurality of first pixels connected to the first scan line; A plurality of second pixels connected to the second scan line; as well as A plurality of third pixels connected to a third scan line, Wherein, the shift controller is configured as: receiving a first image, and The second image is generated by: shifting an image portion of the first image displayed by the first pixel, the second pixel, and the third pixel connected to the first data line from a position in a first frame period to a position in a second frame period immediately following the first frame period in a first direction, shifting an image portion of the first image displayed by the first pixel and the second pixel connected to a second data line in the first direction to be displayed in the second frame period, and shifting an image portion of the first image displayed by the third pixel connected to the second data line in a direction different from the first direction to be displayed in the second frame period, Wherein, the shift controller is also configured to shift in the first direction and in a direction different from the first direction by dividing at least a portion of the first image into a first window area, a second window area and a third window area, the third window area being located between the first window area and the second window area, and the width of the first window area, the width of the second window area and the width of the third window area being set based on the shift direction.

2. The display device according to claim 1, further comprising a plurality of fourth pixels connected to the fourth scan line, in, An image portion displayed by the fourth pixel connected to the third data line and the fourth data line is shifted in a direction different from the first direction during the second frame period, and an image portion displayed by the third pixel connected to the third data line and the fourth data line is shifted in the first direction during the second frame period, The third data line is located between the first data line and the second data line of the first group, and The fourth data line is located between the second data line and the first data lines of the second group, and the first data lines of the second group include each of the first data lines except the first data lines of the first group.

3. The display device according to claim 2, wherein: An image portion displayed by the fourth pixel connected to the first data line is shifted in the first direction during the second frame period.

4. The display device according to claim 3, further comprising a plurality of fifth pixels connected to the fifth scan line, in, The image portion displayed by the fifth pixel connected to the second data line is shifted in a direction different from the first direction during the second frame period, and An image portion displayed by the fifth pixel connected to the first data line, the third data line, and the fourth data line is shifted in the first direction in the second frame period.

5. The display device according to claim 3, further comprising a plurality of fifth pixels connected to the fifth scan line, in, An image portion displayed by the fifth pixel connected to the second data line is shifted in the first direction during the second frame period.

6. The display device according to claim 5, wherein: The image portion displayed by the third pixel, the fourth pixel, and the fifth pixel connected to the second data line and the fourth pixel connected to the third data line and the fourth data line is a logo.

7. The display device according to claim 6, wherein: The flag is periodically shifted according to a first period, and the image portions displayed by the first pixel and the second pixel are periodically shifted according to a second period, The first period and the second period are different from each other.

8. The display device according to claim 6, wherein: The markings are shifted alternately clockwise and counterclockwise.

9. The display device according to claim 6, wherein: The identified edge is shifted in the first direction during the second frame period, and The portion of the identified inner region is shifted in a direction different from the first direction during the second frame period.

10. A method for driving a display device, the method comprising: The shift controller is configured to receive the first image and generate the second image by: shifting an image portion of the first image displayed by a first pixel, a second pixel, and a third pixel connected to a first data line in a first direction from a position in a first frame period to a position in a second frame period immediately following the first frame period, shifting an image portion of the first image displayed by the first pixel and the second pixel connected to a second data line in the first direction to be displayed in the second frame period, and shifting an image portion of the first image displayed by the third pixel connected to the second data line in a direction different from the first direction to be displayed in the second frame period, The shift controller is further configured to shift in the first direction and a direction different from the first direction by dividing at least a portion of the first image into a first window area, a second window area, and a third window area, the third window area being located between the first window area and the second window area, and setting a width of the first window area, a width of the second window area, and a width of the third window area based on the shift direction; displaying an image in a first image area and a second image area surrounded by the first image area in the first frame period; and in the second frame period, shifting the first image area in the first direction and shifting the second image area in a direction different from the first direction, The second image region has an edge extending in a direction different from the first direction and a second direction perpendicular to the first direction.

Images