Display device

Abstract

A display device includes: a plurality of pixels arranged in a row direction and a column direction; a data driver configured to transmit data signals to the plurality of pixels through a plurality of data lines; a scan driver configured to transmit scan signals to the plurality of pixels through a plurality of scan lines; and a light-emitting driver configured to transmit light-emitting signals to the plurality of pixels through a plurality of light-emitting lines, wherein each of the scan lines and the light-emitting lines is connected to the pixels arranged in the row direction among the plurality of pixels, the data lines are connected to the pixels arranged in the column direction among the plurality of pixels, and the scan driver is configured to transmit scan signals of an energized level to the pixels in an interlaced manner.

Description

[0001] Cross - reference to related applications

[0002] This application claims priority and the benefit of Korean Patent Application No. 10 - 2019 - 0125414, filed on October 10, 2019, the content of which is incorporated herein by reference in its entirety. Technical field

[0003] Aspects of some example embodiments of the present disclosure relate to a display device. Background art

[0004] According to the material of the light - emitting layer, electroluminescent display devices can generally be classified as inorganic light - emitting display devices or organic light - emitting display devices. An active - matrix organic light - emitting display device includes self - emissive organic light - emitting diodes (hereinafter referred to as "OLEDs"), and has characteristics such as a relatively fast response speed, relatively efficient light - emitting characteristics, and improved brightness and viewing angles compared to other display devices.

[0005] The driving circuit of a flat - panel display device generally includes a data driving circuit that supplies data signals to data lines and a scan driving circuit that supplies gate signals (or scan signals) to gate lines (or scan lines). The scan driving circuit can be directly formed on the same substrate together with circuit elements, and the circuit elements correspond to the effective area of the screen. The circuit elements in the effective area correspond to pixel circuits in each pixel of the pixels arranged in a matrix configuration through data lines and scan lines in a pixel array. Each of the circuit elements in the effective area and the scan driving circuit includes a plurality of transistors.

[0006] A digital flat - panel display device can write data signals to pixels in a progressive manner. During the vertical active period of a frame period, the data signals are sequentially written to all rows (pixel rows) in the effective area. For example, after writing data signals to the pixels in the first row concurrently (e.g., simultaneously), the data signals are written to the pixels in the second row concurrently (e.g., simultaneously), and then the data signals are written to the pixels in the third row concurrently (e.g., simultaneously). In this way, the data signals are sequentially written to the pixels in all rows of the display panel. To achieve such progressive writing, a gate - in - panel (GIP) circuit can use a shift register to shift the output to sequentially supply gate signals to the gate lines.

[0007] The above - mentioned information disclosed in this background art section is only for strengthening the understanding of the background art, and thus, the information discussed in this background art section does not necessarily constitute prior art. Summary of the invention

[0008] Aspects of some example embodiments of the present disclosure include a display device capable of reducing power consumption.

[0009] The features according to the embodiments of the present disclosure are not limited to the above features, and other technical features not specifically described will be more clearly understood by those skilled in the art from the following description.

[0010] A display device according to some example embodiments includes: a display panel including a plurality of pixels arranged in a row direction and a column direction, a data driver configured to transmit data signals to the plurality of pixels through a plurality of data lines, a scan driver configured to transmit scan signals to the plurality of pixels through a plurality of scan lines, and a light emission driver configured to transmit light emission signals to the plurality of pixels through a plurality of light emission lines. Each of the scan lines and the light emission lines is connected to the pixels arranged in the row direction among the plurality of pixels, the data lines are connected to the pixels arranged in the column direction among the plurality of pixels, and the scan driver transmits scan signals of an on level to the display panel in an interlaced manner.

[0011] According to some example embodiments, the light emission driver may transmit light emission signals of an off level to the pixels arranged in the row direction, and while the transmission of the light emission signals of the off level is maintained, scan signals of an on level may be transmitted to the pixels arranged in the row direction.

[0012] According to some example embodiments, the light emission driver may transmit light emission signals of an off level in an interlaced manner.

[0013] According to some example embodiments, in each of the pixels, a period during which the transmission of the light emission signals of the off level is maintained may be three times or more the period during which the scan signals of the on level are maintained.

[0014] According to some example embodiments, the scan signals of the on level may be provided in the order of the pixels arranged in the first row, the pixels arranged in the third row, the pixels arranged in the second row, and the pixels arranged in the fourth row among the plurality of pixels.

[0015] According to some example embodiments, the light emission signals of the off level may be provided in the order of the pixels arranged in the first row, the pixels arranged in the third row, the pixels arranged in the second row, and the pixels arranged in the fourth row among the plurality of pixels.

[0016] According to some example embodiments, the red pixels and the blue pixels may be connected to one of the plurality of data lines, and the red pixels and the blue pixels may be alternated in the column direction.

[0017] According to some example embodiments, the green pixels may be connected to another one of the plurality of data lines.

[0018] According to some example embodiments, a data driver may continuously transmit data signals to at least two red pixels or at least two blue pixels connected to a data line.

[0019] According to some example embodiments, a data driver may transmit data signals with different levels of swing to a data line, and the number of swings of the data signals with different levels per frame may be less than half of the number of rows of a plurality of pixels.

[0020] According to some example embodiments, a scan driver may include a plurality of scan stages connected to each of scan lines and a scan start line, and each of the scan stages may supply a scan signal at a conductive level to pixels connected to each of the scan lines in response to a scan start signal provided to the scan start line.

[0021] According to some example embodiments, the plurality of scan stages may include: a first scan stage connected to pixels arranged in a first row among a plurality of pixels through a first scan line, a second scan stage connected to pixels arranged in a second row among the plurality of pixels through a second scan line, and a third scan stage connected to pixels arranged in a third row among the plurality of pixels through a third scan line, and the third scan stage may be connected to a scan start line branched from the first scan line.

[0022] According to some example embodiments, the second scan stage may be connected to a scan start line branched from the third scan line.

[0023] According to some example embodiments, a light emission driver may transmit light emission signals at a cut-off level in a progressive manner.

[0024] A display device according to some example embodiments includes: a data line, a plurality of red pixels and a plurality of blue pixels connected to the data line, and scan lines and light emission lines connected to the plurality of red pixels and the plurality of blue pixels to provide scan signals and light emission signals. The red pixels and the blue pixels are alternately arranged along the data line, and the scan signals are continuously provided to at least two red pixels.

[0025] According to some example embodiments, the scan signals continuously provided to at least two red pixels may not overlap in time.

[0026] According to some example embodiments, the light emission signals provided to at least two red pixels may at least partially overlap in time.

[0027] According to some example embodiments, the light emission signals provided to at least two red pixels may be continuously provided.

[0028] According to some example embodiments, each of the red pixels and the blue pixels may include a storage capacitor, a light emitting diode, and seven transistors.

[0029] According to some example embodiments, the scan signal may be continuously provided to at least two red pixels, and then continuously provided to at least two blue pixels.

[0030] Further details of some example embodiments are included in the detailed description and the drawings.

[0031] According to some example embodiments of the present disclosure, a display device may reduce power consumption.

[0032] The features of the embodiments are not limited by the details described above, and more different features are further described and illustrated in this specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and other features of the present disclosure will become more apparent by describing in further detail example embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0034] Figure 1 is a block diagram schematically illustrating a display device according to some example embodiments of the present disclosure;

[0035] Figure 2 is a block diagram schematically illustrating the relationship between a timing controller, a data driver, a scan driver, and a light emitting driver in a display device according to some example embodiments of the present disclosure;

[0036] Figure 3 is an equivalent circuit diagram of a pixel according to some example embodiments of the present disclosure;

[0037] Figure 4 is a block diagram illustrating the relationship between a data driver, a scan driver, a light emitting driver, and a pixel unit (or a display panel) in a display device according to some example embodiments of the present disclosure;

[0038] Figure 5 is illustrating from Figure 4 the scan signals and the light emitting signals supplied to each pixel row from each scan line and each light emitting line;

[0039] Figure 6 is a graph illustrating the output voltage of a data driver in a display device over time according to some example embodiments of the present disclosure;

[0040] Figure 7 is a block diagram illustrating the relationship between a data driver, a scan driver, a light emitting driver, and a pixel unit in a display device according to some example embodiments of the present disclosure;

[0041] Figure 8 is a timing diagram showing the scan signals and emission signals supplied from each scan line and each emission line of Figure 7 to each pixel row;

[0042] Figure 9 is a graph showing the output voltage of the data driver in the display device of Figure 7 versus time;

[0043] Figure 10 is a block diagram showing the relationship between the data driver, scan driver, emission driver, and pixel units in a display device according to some example embodiments of the present disclosure;

[0044] Figure 11 is a timing diagram showing the scan signals and emission signals supplied from each scan line and each emission line of Figure 10 to each pixel row;

[0045] Figure 12 is a graph showing Figure 10 the output voltage of the data driver in the display device versus time;

[0046] Figure 13 is a block diagram showing the relationship between the data driver, scan driver, emission driver, and pixel units in a display device according to some example embodiments of the present disclosure; and

[0047] Figure 14 is a timing diagram showing the scan signals and emission signals supplied from each scan line and each emission line of Figure 13 to each pixel row. Detailed implementation manners

[0048] With reference to the embodiments and the accompanying drawings described in more detail below, the features and characteristics of the present disclosure and the methods for implementing them will become more apparent. However, the present disclosure is not limited to the example embodiments disclosed below and can be implemented in various different forms. These example embodiments are provided so that the present disclosure will be more thorough and complete, and those skilled in the art to which the present disclosure pertains can fully understand the scope of the present disclosure. The scope is defined by the claims and their equivalents according to the embodiments of the present disclosure.

[0049] Although first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are only used to distinguish one component from another. Therefore, it goes without saying that within the technical spirit of the present disclosure, the first component mentioned below can be the second component. Singular expressions include plural expressions unless the context clearly dictates otherwise.

[0050] The following exemplary embodiments may be applied to various display devices such as an organic light emitting display device, a liquid crystal display device, a field emission display device, and an electrophoretic device.

[0051] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. In the drawings, the same or similar reference numerals are used for the same components.

[0052] Figure 1 is a block diagram schematically illustrating a display device according to some exemplary embodiments of the present disclosure. Figure 2 is a block diagram schematically illustrating the relationship between a timing controller, a data driver, a scan driver, and a light emitting driver in a display device according to some exemplary embodiments of the present disclosure.

[0053] Referring to Figure 1 and Figure 2 , a display device 9 according to some exemplary embodiments may include a timing controller 10, a data driver 20, a scan driver 30, a light emitting driver 40, and a pixel unit (or a display panel) 50.

[0054] The timing controller 10 may receive an external input signal from an external processor. The external input signal may include a vertical synchronization signal, a horizontal synchronization signal, a data enable signal, an RGB data signal, and the like.

[0055] The vertical synchronization signal may include a plurality of pulses and may indicate that a previous frame period has ended and a current frame period has started based on the time point at which each of the pulses is generated. The interval between adjacent pulses of the vertical synchronization signal may correspond to one frame period. The horizontal synchronization signal Hsync (refer to Figure 5 ) may include a plurality of pulses and may indicate that a previous horizontal period has ended and a new horizontal period has started based on the time point at which each of the pulses is generated. The interval between adjacent pulses of the horizontal synchronization signal may correspond to one horizontal period 1H (refer to Figure 5 ). The data enable signal may have an enable level with respect to a specific horizontal period and may have a disabled level in the remaining periods.

[0056] When the data enable signal is at the enable level, the data enable signal may indicate that an RGB data signal is supplied during the corresponding horizontal period. The RGB data signal may be supplied in units of pixel rows in each of the corresponding horizontal periods. The timing controller 10 may generate a gray value based on the RGB data signal to correspond to the specifications of the display device 9. The timing controller 10 may generate control signals to be supplied to the data driver 20, the scan driver 30, the light emitting driver 40, etc. based on the external input signal according to the design and specifications of the display device 9.

[0057] The timing controller 10 may include a data processor 111, a data controller 112, a memory 113, and a scan controller 121. According to some example embodiments, the form in which the data processor 111, the data controller 112, the memory 113, and the scan controller 121 are incorporated into the timing controller 10 will be described as an example. However, the data processor 111, the data controller 112, the memory 113, and the scan controller 121 may be located outside the timing controller 10.

[0058] The scan controller 121 may generate a gate timing control signal for controlling the operation timings of the scan driver 30 and the light-emitting driver 40 based on a vertical synchronization signal, a horizontal synchronization signal, a dot clock signal, and a data enable signal. The gate timing control signal may include a gate start pulse, a gate shift clock, etc., but the embodiments are not limited thereto. The gate start pulse is applied to the scan or light-emitting stage that generates the first output to activate the operation of the scan or light-emitting stage. The gate shift clock is a clock signal commonly input to the scan or light-emitting stage and is a clock signal for shifting the gate start pulse.

[0059] The data processor 111 generates compensation data by adding a preset compensation value to the data controller 112. The data processor 111 may sense the electrical characteristics of each of the pixels PXnm, obtain a compensation value for the pixels PXnm for compensating for variations in electrical characteristics (e.g., threshold voltage variations of driving transistors) between the pixels PXnm based on the sensing results, and may store the compensation values of the pixels PXnm in the memory 113 or update previously stored values. The memory 113 may be a flash memory, but is not limited thereto.

[0060] The data controller 112 may generate a data timing control signal for controlling the operation timing of the data driver 20. The data timing control signal may include a source start pulse, a source sampling clock, a data enable signal, etc., but the embodiments are not limited thereto.

[0061] The data driver 20 may generate data voltages to be provided to the data lines DL1, DL2, and DLm using the gray values and control signals received from the data controller 112. For example, the data driver 20 may sample the gray values using a clock signal and may provide data voltages corresponding to the gray values to the data lines DL1, DL2, and DLm in units of pixel rows (e.g., pixels connected to the same scan line).

[0062] The scan driver 30 may receive a clock signal, a scan start signal, etc. from the timing controller 10 to generate scan signals to be provided to the scan lines GIL1, GWNL1, GWPL1, GBL1, GILn, GWNLn, GWPLn, and GBLn. Here, n may be an integer greater than zero.

[0063] The scan driver 30 may include a plurality of sub-scan drivers. For example, the first sub-scan driver may provide scan signals to the scan lines GIL1 and GILn, the second sub-scan driver may provide scan signals to the scan lines GWNL1 and GWNLn, the third sub-scan driver may provide scan signals to the scan lines GWPL1 and GWPLn, and the fourth sub-scan driver may provide scan signals to the scan lines GBL1 and GBLn. Each of the sub-scan drivers may include a plurality of scan stages connected in an arrangement or circuit structure to form a shift register. For example, the scan signals may be generated in such a manner that a pulse of the conduction level of the scan start signal supplied to the scan start line is transmitted to another scan stage.

[0064] For another example, the first sub-scan driver and the second sub-scan driver may be integrated to provide scan signals to the scan lines GIL1, GWNL1, GILn, and GWNLn, and the third sub-scan driver and the fourth sub-scan driver may be integrated to provide scan signals to the scan lines GWPL1, GBL1, GWPLn, and GBLn. For example, the previous scan line of the nth scan line GWNLn (i.e., the (n - 1)th scan line) may be connected to the same electrical node as the nth scan line GILn. Additionally, for example, the next scan line of the nth scan line GWPLn (i.e., the (n + 1)th scan line) may be connected to the same electrical node as the nth scan line GBLn.

[0065] At this time, the first sub-scan driver and the second sub-scan driver may supply scan signals of pulses having a first polarity to the scan lines GIL1, GWNL1, GILn, and GWNLn. Additionally, the third sub-scan driver and the fourth sub-scan driver may supply scan signals of pulses having a second polarity to the scan lines GWPL1, GBL1, GWPLn, and GBLn. The first polarity and the second polarity may be polarities opposite to each other. According to some example embodiments, all of the scan lines GIL1, GWNL1, GILn, GWNLn, GWPL1, GBL1, GWPLn, and GBLn may have one polarity.

[0066] Hereinafter, the polarity may refer to the logic level of the pulse. For example, when the pulse is of the first polarity, the pulse may have a high level. At this time, the pulse of the high level may be referred to as a rising pulse. When the rising pulse is supplied to the gate electrode of an N-type transistor, the N-type transistor may be turned on. That is, the rising pulse may be the conduction level with respect to the N-type transistor. Here, it is assumed that a voltage of a level sufficiently lower than the level of the voltage applied to the gate electrode of the N-type transistor is applied to the source electrode of the N-type transistor. For example, the N-type transistor may be an NMOS.

[0067] In addition, when the pulse is of the second polarity, the pulse may have a low level. At this time, the pulse with the low level may be referred to as a falling pulse. When the falling pulse is supplied to the gate electrode of the P-type transistor, the P-type transistor may be turned on. That is, the falling pulse may be the conduction level with respect to the P-type transistor. Here, it is assumed that a voltage at a level sufficiently higher than the level of the voltage applied to the gate electrode of the P-type transistor is applied to the source electrode of the P-type transistor. For example, the P-type transistor may be a PMOS.

[0068] The light-emitting driver 40 may receive a clock signal, a light-emitting off signal, etc. from the timing controller 10 to generate light-emitting signals to be provided to the light-emitting lines EL1, EL2, and ELn. For example, the light-emitting driver 40 may provide light-emitting signals with pulses having a cut-off level to the light-emitting lines EL1, EL2, and ELn. For example, the light-emitting driver 40 may be configured in the form of a shift register and may generate light-emitting signals in such a way that the pulses at the cut-off level of the light-emitting off signal are transmitted to another light-emitting stage according to the control of the clock signal.

[0069] The pixel unit 50 includes pixels PXnm. For example, the pixels PXnm may be connected to corresponding data lines DLm, scan lines GILn, GWNLn, GWPLn, and GBLn, and light-emitting line ELn.

[0070] Figure 3 is an equivalent circuit diagram of a pixel according to some example embodiments of the present disclosure.

[0071] Reference Figure 3 , the pixel PXnm according to some example embodiments of the present disclosure includes transistors T1, T2, T3, T4, T5, T6, and T7, a storage capacitor Cst, and a light-emitting diode LD. However, the embodiments according to the present invention do not have to be limited to Figure 3 the structure of the pixel circuit shown in, and some example embodiments may include additional or fewer transistors or capacitors or other electrical components without departing from the spirit and scope of the embodiments according to the present disclosure.

[0072] The first electrode of the transistor T1 may be connected to the first electrode of the transistor T2, the second electrode of the transistor T1 may be connected to the first electrode of the transistor T3, and the gate electrode of the transistor T1 may be connected to the second electrode of the transistor T3. The transistor T1 may also be referred to as a driving transistor.

[0073] The first electrode of the transistor T2 may be connected to the first electrode of the transistor T1, the second electrode of the transistor T2 may be connected to the data line DLm, and the gate electrode of the transistor T2 may be connected to the scan line GWPLn. The transistor T2 may also be referred to as a scan transistor.

[0074] The first electrode of transistor T3 can be connected to the second electrode of transistor T1, the second electrode of transistor T3 can be connected to the gate electrode of transistor T1, and the gate electrode of transistor T3 can be connected to the scan line GWNLn. Transistor T3 can also be referred to as a diode-connected transistor.

[0075] The first electrode of transistor T4 can be connected to the second electrode of capacitor Cst, the second electrode of transistor T4 can be connected to the initialization line VINTL, and the gate electrode of transistor T4 can be connected to the scan line GILn. Transistor T4 can be referred to as a gate initialization transistor.

[0076] The first electrode of transistor T5 can be connected to the power line ELVDDL, the second electrode of transistor T5 can be connected to the first electrode of transistor T1, and the gate electrode of transistor T5 can be connected to the emission line ELn. Transistor T5 can be referred to as a first emission transistor.

[0077] The first electrode of transistor T6 can be connected to the second electrode of transistor T1, the second electrode of transistor T6 can be connected to the anode of the light-emitting diode LD, and the gate electrode of transistor T6 can be connected to the emission line ELn. Transistor T6 can be referred to as a second emission transistor.

[0078] The first electrode of transistor T7 can be connected to the anode of the light-emitting diode LD, the second electrode of transistor T7 can be connected to the initialization line VINTL, and the gate electrode of transistor T7 can be connected to the scan line GBLn. Transistor T7 can be referred to as an anode initialization transistor.

[0079] The first electrode of the storage capacitor Cst can be connected to the power line ELVDDL, and the second electrode of the storage capacitor Cst can be connected to the gate electrode of transistor T1.

[0080] The anode of the light-emitting diode LD can be connected to the second electrode of transistor T6, and the cathode of the light-emitting diode LD can be connected to the power line ELVSSL. The voltage applied to the power line ELVSSL can be arranged to be lower than the voltage applied to the power line ELVDDL. The light-emitting diode LD can be an organic light-emitting diode, an inorganic light-emitting diode, a quantum dot light-emitting diode, etc.

[0081] Transistors T1, T2, T5, T6, and T7 can be P-type transistors. The channels of transistors T1, T2, T5, T6, and T7 can be configured by polysilicon. The polysilicon transistor can be a low-temperature polysilicon (LTPS) transistor. The polysilicon transistor has a high electron mobility, and thus the polysilicon transistor has fast driving characteristics.

[0082] The transistors T3 and T4 can be N-type transistors. The channels of the transistors T3 and T4 can be configured with an oxide semiconductor. Compared with polysilicon, the oxide semiconductor transistor can be processed at a low temperature and has a low charge mobility. Therefore, the amount of leakage current generated in the off state of the oxide semiconductor transistor is smaller than that of the polysilicon transistor.

[0083] According to some example embodiments, instead of polysilicon, the transistor T7 can be configured with an N-type oxide semiconductor transistor. At this time, one of the scan lines GWNLn and GILn can be connected to the gate electrode of the transistor T7 by replacing the scan line GBLn.

[0084] Figure 4 FIG. is a block diagram illustrating the relationship between a data driver, a scan driver, a light-emitting driver, and pixel units in a display device according to some example embodiments of the present disclosure.

[0085] Reference Figure 4 , the pixel unit 50 includes pixels arranged in a matrix form. That is, the pixels can be arranged in a row direction and a column direction. Here, the row direction may refer to the horizontal direction in the drawing, and the column direction may refer to the vertical direction in the drawing. However, the embodiments are not limited to the terms of the row direction and the column direction, and the row direction and the column direction can be understood as intersecting relative directions. In Figure 4 , only a plurality of scan stages included in the above-described first sub-scan driver are shown, and the scan driver 30 will be described based on the first sub-scan driver.

[0086] The pixels emit light of different colors. For example, among the pixels in Figure 4 , the pixel indicated by the symbol "R" is a red pixel that emits red light, the pixel indicated by "G" is a green pixel that emits green light, and the pixel indicated by the symbol "B" is a blue pixel that emits blue light.

[0087] In the present specification, a pixel row includes pixels that are located in the same row and arranged in the row direction in the pixel unit 50. That is, the pixel row refers to pixels connected to the same scan line or light-emitting line. A pixel column includes pixels that are located in the same column and arranged in the column direction in the pixel unit 50. That is, the pixel column refers to pixels connected to the same data line. For example, in the drawing, the red pixel R and the green pixel G can be alternately arranged in the row direction in the first pixel row, the blue pixel B and the green pixel G can be alternately arranged in the row direction in the second pixel row, the red pixel R and the blue pixel B can be alternately arranged in the column direction in the first pixel column, and only the green pixel G can be arranged in the second pixel column.

[0088] According to some example embodiments, the red pixel R and the blue pixel B may be connected to the (2p - 1)th (odd) data line, and the green pixel G may be connected to the 2pth (even) data line. Here, p is a natural number. For example, the red pixel R and the blue pixel B may be connected to the first data line DL1, and the green pixel G may be connected to the second data line DL2. The red pixel R and the blue pixel B connected to the (2p - 1)th data line may be alternately arranged in the column direction (e.g., may be alternating). According to some example embodiments, the red pixel R and the blue pixel B may be connected to the 2pth data line, and the green pixel G may be connected to the (2p - 1)th data line.

[0089] The data driver 20 may provide a data signal having a voltage level (at which the red pixel R and the blue pixel B emit light) to the (2p - 1)th data line. When the blue pixel B emits light, the voltage level of the data signal output from the data driver 20 may be greater than the voltage level of the data signal when the red pixel R emits light. The voltage level of the data signal provided to the (2p - 1)th data line may swing (or change) corresponding to whether the red pixel R and the blue pixel B emit light according to time (e.g., see Figure 6 ).

[0090] According to some example embodiments, the red pixel R and the green pixel G may be alternately arranged in the row direction (e.g., may be alternating) in the odd pixel rows of the pixel unit 50. The red pixel R and the green pixel G alternately arranged in the row direction (e.g., alternating) may be connected to the (2p - 1)th scan lines GWPL1, GWPL3, GWPL5, and GWPL7. The blue pixel B and the green pixel G may be alternately arranged in the row direction (e.g., may be alternating) in the even pixel rows of the pixel unit 50. The blue pixel B and the green pixel G alternately arranged in the row direction (e.g., may be alternating) may be connected to the 2pth scan lines GWPL2, GWPL4, GWPL6, and GWPL8.

[0091] Two adjacent pixels connected to the same data line (e.g., the (2p - 1)th data line) and emitting different colors of light, and at least one green pixel G adjacent to any one of the two pixels are included in one unit pixel for displaying one unit image. For example, the red pixel R connected to the first data line DL1 and the first scan line GWPL1, the blue pixel B connected to the first data line DL1 and the second scan line GWPL2, the green pixel G connected to the second data line DL2 and the first scan line GWPL1, and the green pixel G connected to the second data line DL2 and the second scan line GWPL2 may form one unit pixel.

[0092] Hereinafter, the scan driver 30 and the light emitting driver 40 will be described.

[0093] The scan driver 30 may include a plurality of scan stages 301 to 308 arranged in the column direction. For example, the first scan stage 301 to the eighth scan stage 308 may be sequentially arranged in the column direction.

[0094] Each of the scan stages 301 to 308 may be connected to scan start lines GSL0 to GSL8 and scan lines GWPL1 to GWPL8. The scan lines GWPL1 to GWPL8 may be connected to pixels (pixel rows) arranged in the row direction and each of the scan stages 301 to 308. According to some example embodiments, the scan start lines GSL0 to GSL8 of the scan stages 301 to 308 may be connected to the scan controller 121, or may branch from the scan lines GWPL1 to GWPL8 of other scan stages 301 to 308.

[0095] For example, the first scan stage 301 may be connected to the initial scan start line GSL0 and may be connected to the first scan line GWPL1. The initial scan start line GSL0 is connected to the scan controller 121, and the first scan line GWPL1 is connected to pixels in the first row of the pixel unit 50 in the row direction. The first scan start line GSL1 branched from the first scan line GWPL1 may be connected to the third scan stage 303.

[0096] The second scan stage 302 adjacent to the first scan stage 301 in the column direction may be connected to the third scan start line GSL3 branched from the third scan line GWPL3 of the third scan stage 303 and may be connected to the second scan line GWPL2. The second scan line GWPL2 is connected to the second pixel row of the pixel unit 50. The second scan start line GSL2 branched from the second scan line GWPL2 may be connected to the fourth scan stage 304. The second scan start line GSL2 branched from the second scan line GWPL2 may cross at least another wiring to be connected to the fourth scan stage 304 and may be insulated from other wirings.

[0097] The third scan stage 303 adjacent to the second scan stage 302 in the column direction may be connected to the first scan start line GSL1 branched from the first scan line GWPL1 of the first scan stage 301 and may be connected to the third scan line GWPL3. The third scan line GWPL3 is connected to the third pixel row of the pixel unit 50. The third scan start line GSL3 branched from the third scan line GWPL3 may be connected to the second scan stage 302.

[0098] The fourth scan stage 304 adjacent to the third scan stage 303 in the column direction may be connected to the second scan start line GSL2 branched from the second scan line GWPL2 of the second scan stage 302, and may be connected to the fourth scan line GWPL4, and the fourth scan line GWPL4 is connected to the fourth pixel row of the pixel unit 50. The fourth scan start line GSL4 branched from the fourth scan line GWPL4 may be connected to the fifth scan stage 305.

[0099] The fifth scan stage 305 adjacent to the fourth scan stage 304 in the column direction may be connected to the fourth scan start line GSL4 branched from the fourth scan line GWPL4 of the fourth scan stage 304, and may be connected to the fifth scan line GWPL5, and the fifth scan line GWPL5 is connected to the fifth pixel row of the pixel unit 50. The fifth scan start line GSL5 branched from the fifth scan line GWPL5 may be connected to the seventh scan stage 307.

[0100] The sixth scan stage 306 adjacent to the fifth scan stage 305 in the column direction may be connected to the seventh scan start line GSL7 branched from the seventh scan line GWPL7 of the seventh scan stage 307, and may be connected to the sixth scan line GWPL6, and the sixth scan line GWPL6 is connected to the sixth pixel row of the pixel unit 50. The sixth scan start line GSL6 branched from the sixth scan line GWPL6 may be connected to the eighth scan stage 308. The sixth scan start line GSL6 branched from the sixth scan line GWPL6 may cross at least another wiring to be connected to the eighth scan stage 308, and may be insulated from at least another wiring.

[0101] The seventh scan stage 307 adjacent to the sixth scan stage 306 in the column direction may be connected to the fifth scan start line GSL5 branched from the fifth scan line GWPL5 of the fifth scan stage 305, and may be connected to the seventh scan line GWPL7, and the seventh scan line GWPL7 is connected to the seventh pixel row of the pixel unit 50. The seventh scan start line GSL7 branched from the seventh scan line GWPL7 may be connected to the sixth scan stage 306.

[0102] The eighth scan stage 308 adjacent to the seventh scan stage 307 in the column direction may be connected to the sixth scan start line GSL6 branched from the sixth scan line GWPL6 of the sixth scan stage 306, and may be connected to the eighth scan line GWPL8, and the eighth scan line GWPL8 is connected to the eighth pixel row of the pixel unit 50. According to some example embodiments, the eighth scan start line GSL8 branched from the eighth scan line GWPL8 may be connected to the ninth scan stage.

[0103] As described above, in the present embodiment, each of the scan levels 301 to 308, each of the scan start lines GSL0 to GSL8 connected to the corresponding scan levels 301 to 308, and each of the scan lines GWPL1 to GWPL8 can be repeated regularly based on four scan levels. The fact that the first scan level 301 is connected to the initial scan start line GSL0 (the initial scan start line GSL0 is connected to the scan controller 121) and there is no scan start line branching from the last scan line connected to the last scan level may be an exception in this rule.

[0104] For example, the (4p - 3)th scan level adjacent to the (4p - 4)th scan level in the column direction can be connected to the (4p - 4)th scan start line branching from the (4p - 4)th scan line of the (4p - 4)th scan level, and can be connected to the (4p - 3)th scan line, and the (4p - 3)th scan line is connected to the (4p - 3)th pixel row of the pixel unit 50. The (4p - 3)th scan start line branching from the (4p - 3)th scan line can be connected to the (4p - 1)th scan level.

[0105] The (4p - 2)th scan level adjacent to the (4p - 3)th scan level in the column direction can be connected to the (4p - 1)th scan start line branching from the (4p - 1)th scan line of the (4p - 1)th scan level, and can be connected to the (4p - 2)th scan line, and the (4p - 2)th scan line is connected to the (4p - 2)th pixel row of the pixel unit 50. The (4p - 2)th scan start line branching from the (4p - 2)th scan line can be connected to the 4pth scan level. The (4p - 2)th scan start line branching from the (4p - 2)th scan line can cross at least another wiring to be connected to the 4pth scan level, and can be insulated from at least another wiring.

[0106] The (4p - 1)th scan level adjacent to the (4p - 2)th scan level in the column direction can be connected to the (4p - 3)th scan start line branching from the (4p - 3)th scan line of the (4p - 3)th scan level, and can be connected to the (4p - 1)th scan line, and the (4p - 1)th scan line is connected to the (4p - 1)th pixel row of the pixel unit 50. The (4p - 1)th scan start line branching from the (4p - 1)th scan line can be connected to the (4p - 2)th scan level.

[0107] The 4pth scan level adjacent to the (4p - 1)th scan level in the column direction can be connected to the (4p - 2)th scan start line branching from the (4p - 2)th scan line of the (4p - 2)th scan level, and can be connected to the 4pth scan line, and the 4pth scan line is connected to the 4pth pixel row of the pixel unit 50. The 4pth scan start line branching from the 4pth scan line can be connected to the (4p + 1)th scan level.

[0108] The light-emitting driver 40 may include a plurality of light-emitting stages 401 to 408 arranged in the column direction. For example, the first light-emitting stage 401 to the eighth light-emitting stage 408 may be sequentially arranged in the column direction. According to some example embodiments, the arrangement or structure of the light-emitting stages 401 to 408 in the light-emitting driver 40 may be symmetric with respect to the pixel unit 50 in the same form as the arrangement of the scan stages 301 to 308 in the scan driver 30.

[0109] Each of the light-emitting stages 401 to 408 may be connected to the emission start lines ESL0 to ESL8 and the emission lines EL1 to EL8. The emission lines EL1 to EL8 may be connected to the pixels arranged in the row direction and each of the light-emitting stages 401 to 408. According to some example embodiments, the emission start lines ESL0 to ESL8 of the light-emitting stages 401 to 408 may be connected to the scan controller 121, or may branch from the emission lines EL1 to EL8 of other scan stages 401 to 408.

[0110] For example, the first light-emitting stage 401 may be connected to the initial emission start line ESL0 and may be connected to the first emission line EL1. The initial emission start line ESL0 is connected to the scan controller 121, and the first emission line EL1 is connected to the first pixel row of the pixel unit 50. The first emission start line ESL1 branched from the first emission line EL1 may be connected to the third light-emitting stage 403.

[0111] The second light-emitting stage 402 adjacent to the first light-emitting stage 401 in the column direction may be connected to the third emission start line ESL3 branched from the third emission line EL3 of the third light-emitting stage 403 and may be connected to the second emission line EL2. The second emission line EL2 is connected to the second pixel row of the pixel unit 50. The second emission start line ESL2 branched from the second emission line EL2 may be connected to the fourth light-emitting stage 404. The second emission start line ESL2 branched from the second emission line EL2 may cross at least another wiring to be connected to the fourth light-emitting stage 404 and may be insulated from at least another wiring.

[0112] The third light-emitting stage 403 adjacent to the second light-emitting stage 402 in the column direction may be connected to the first emission start line ESL1 branched from the first emission line EL1 of the first light-emitting stage 401 and may be connected to the third emission line EL3. The third emission line EL3 is connected to the third pixel row of the pixel unit 50. The third emission start line ESL3 branched from the third emission line EL3 may be connected to the second light-emitting stage 402.

[0113] The fourth light-emitting stage 404 adjacent to the third light-emitting stage 403 in the column direction can be connected to a second light-emitting start line ESL2 branched from a second light-emitting line EL2 of the second light-emitting stage 402, and can be connected to a fourth light-emitting line EL4, where the fourth light-emitting line EL4 is connected to a fourth pixel row of the pixel unit 50. A fourth light-emitting start line ESL4 branched from the fourth light-emitting line EL4 can be connected to the fifth light-emitting stage 405.

[0114] The fifth light-emitting stage 405 adjacent to the fourth light-emitting stage 404 in the column direction can be connected to a fourth light-emitting start line ESL4 branched from a fourth light-emitting line EL4 of the fourth light-emitting stage 404, and can be connected to a fifth light-emitting line EL5, where the fifth light-emitting line EL5 is connected to a fifth pixel row of the pixel unit 50. A fifth light-emitting start line ESL5 branched from the fifth light-emitting line EL5 can be connected to the seventh light-emitting stage 407.

[0115] The sixth light-emitting stage 406 adjacent to the fifth light-emitting stage 405 in the column direction can be connected to a seventh light-emitting start line ESL7 branched from a seventh light-emitting line EL7 of the seventh light-emitting stage 407, and can be connected to a sixth light-emitting line EL6, where the sixth light-emitting line EL6 is connected to a sixth pixel row of the pixel unit 50. A sixth light-emitting start line ESL6 branched from the sixth light-emitting line EL6 can be connected to the eighth light-emitting stage 408. The sixth light-emitting start line ESL6 branched from the sixth light-emitting line EL6 can cross at least one other wiring to be connected to the eighth light-emitting stage 408, and can be insulated from at least one other wiring.

[0116] The seventh light-emitting stage 407 adjacent to the sixth light-emitting stage 406 in the column direction can be connected to a fifth light-emitting start line ESL5 branched from a fifth light-emitting line EL5 of the fifth light-emitting stage 405, and can be connected to a seventh light-emitting line EL7, where the seventh light-emitting line EL7 is connected to a seventh pixel row of the pixel unit 50. A seventh light-emitting start line ESL7 branched from the seventh light-emitting line EL7 can be connected to the sixth light-emitting stage 406.

[0117] The eighth light-emitting stage 408 adjacent to the seventh light-emitting stage 407 in the column direction can be connected to a sixth light-emitting start line ESL6 branched from a sixth light-emitting line EL6 of the sixth light-emitting stage 406, and can be connected to an eighth light-emitting line EL8, where the eighth light-emitting line EL8 is connected to an eighth pixel row of the pixel unit 50. According to some example embodiments, an eighth light-emitting start line ESL8 branched from the eighth light-emitting line EL8 can be connected to a ninth light-emitting stage.

[0118] As described above, according to some exemplary embodiments, each of the light emission levels 401 to 408, each of the light emission start lines ESL0 to ESL8 connected to the corresponding light emission levels 401 to 408, and each of the light emission lines EL1 to EL8 may be regularly repeated based on four light emission levels. The fact that the first light emission level 401 is connected to the initial light emission start line ESL0 (the initial light emission start line ESL0 is connected to the scan controller 121) and there is no light emission start line branching from the last light emission line connected to the last light emission level may be an exception in this rule.

[0119] For example, the (4p - 3) light emission level adjacent to the (4p - 4) light emission level in the column direction may be connected to the (4p - 4) light emission start line branched from the (4p - 4) light emission line of the (4p - 4) light emission level, and may be connected to the (4p - 3) light emission line, and the (4p - 3) light emission line is connected to the (4p - 3) pixel row of the pixel unit 50. The (4p - 3) light emission start line branched from the (4p - 3) light emission line may be connected to the (4p - 1) light emission level.

[0120] The (4p - 2) light emission level adjacent to the (4p - 3) light emission level in the column direction may be connected to the (4p - 1) light emission start line branched from the (4p - 1) light emission line of the (4p - 1) light emission level, and may be connected to the (4p - 2) light emission line, and the (4p - 2) light emission line is connected to the (4p - 2) pixel row of the pixel unit 50. The (4p - 2) light emission start line branched from the (4p - 2) light emission line may be connected to the 4p light emission level. The (4p - 2) light emission start line branched from the (4p - 2) light emission line may cross at least another wiring to be connected to the 4p light emission level, and may be insulated from at least another wiring.

[0121] The (4p - 1) light emission level adjacent to the (4p - 2) light emission level in the column direction may be connected to the (4p - 3) light emission start line branched from the (4p - 3) light emission line of the (4p - 3) light emission level, and may be connected to the (4p - 1) light emission line, and the (4p - 1) light emission line is connected to the (4p - 1) pixel row of the pixel unit 50. The (4p - 1) light emission start line branched from the (4p - 1) light emission line may be connected to the (4p - 2) light emission level.

[0122] The 4p light emission level adjacent to the (4p - 1) light emission level in the column direction may be connected to the (4p - 2) light emission start line branched from the (4p - 2) light emission line of the (4p - 2) light emission level, and may be connected to the 4p light emission line, and the 4p light emission line is connected to the 4p pixel row of the pixel unit 50. The 4p light emission start line branched from the 4p light emission line may be connected to the (4p + 1) light emission level.

[0123] Hereinafter, a description will be given with reference to Figure 5 a scan signal and a light emission signal in more detail.

[0124] Figure 5 is a timing diagram showing the scan signals and the light emission signals supplied to each pixel row from Figure 4 each scan line and each light emission line. In Figure 5 , the low-level signal of the scan signal is the conduction level, and the high-level signal of the light emission signal is the cut-off level. Similarly, in Figure 4 , a description will be given based on the scan signal supplied from the first sub-scan driver.

[0125] In the first pixel row, the scan signal SCAN[1] is supplied to the first scan line GWPL1, and the light emission signal EM[1] is supplied to the first light emission line EL1. In the second pixel row, the scan signal SCAN[2] is supplied to the second scan line GWPL2, and the light emission signal EM[2] is supplied to the second light emission line EL2. In the third pixel row, the scan signal SCAN[3] is supplied to the third scan line GWPL3, and the light emission signal EM[3] is supplied to the third light emission line EL3. In the fourth pixel row, the scan signal SCAN[4] is supplied to the fourth scan line GWPL4, and the light emission signal EM[4] is supplied to the fourth light emission line EL4. In the fifth pixel row, the scan signal SCAN[5] is supplied to the fifth scan line GWPL5, and the light emission signal EM[5] is supplied to the fifth light emission line EL5. In the sixth pixel row, the scan signal SCAN[6] is supplied to the sixth scan line GWPL6, and the light emission signal EM[6] is supplied to the sixth light emission line EL6. In the seventh pixel row, the scan signal SCAN[7] is supplied to the seventh scan line GWPL7, and the light emission signal EM[7] is supplied to the seventh light emission line EL7. In the eighth pixel row, the scan signal SCAN[8] is supplied to the eighth scan line GWPL8, and the light emission signal EM[8] is supplied to the eighth light emission line EL8.

[0126] According to some example embodiments, the scan signal of the conduction level and the light emission signal of the cut-off level may be transmitted in an interlaced manner instead of a progressive manner in which the scan signal and the light emission signal are transmitted to each pixel row corresponding to the arrangement order.

[0127] First, the first scan stage 301 and the first light-emitting stage 401 can respectively receive a scan start signal and a light-off signal from the scan controller 121, and can supply a scan signal with a conductive level and a light-emitting signal with a cut-off level to the first pixel row through the first scan line GWPL1 and the first light-emitting line EL1. In each pixel row, the period during which the scan signal with a conductive level is supplied may be included in the period during which the light-emitting signal with a cut-off level is supplied. That is, in each pixel row, the supply of the light-emitting signal with a cut-off level may be maintained during the period during which the scan signal with a conductive level is supplied.

[0128] Next, the third light-emitting stage 403 that receives the light-off signal through the first light-emitting start line ESL1 branched from the first light-emitting line EL1 can supply the light-emitting signal with a cut-off level to the third pixel row through the third light-emitting line EL3. The third scan stage 303 that receives the scan start signal through the first scan start line GSL1 branched from the first scan line GWPL1 can supply the scan signal with a conductive level to the third pixel row through the third scan line GWPL3.

[0129] Next, the second light-emitting stage 402 that receives the light-off signal through the third light-emitting start line ESL3 branched from the third light-emitting line EL3 can supply the light-emitting signal with a cut-off level to the second pixel row through the second light-emitting line EL2. The second scan stage 302 that receives the scan start signal through the third scan start line GSL3 branched from the third scan line GWPL3 can supply the scan signal with a conductive level to the second pixel row through the second scan line GWPL2.

[0130] Next, the fourth light-emitting stage 404 that receives the light-off signal through the second light-emitting start line ESL2 branched from the second light-emitting line EL2 can supply the light-emitting signal with a cut-off level to the fourth pixel row through the fourth light-emitting line EL4. The fourth scan stage 304 that receives the scan start signal through the second scan start line GSL2 branched from the second scan line GWPL2 can supply the scan signal with a conductive level to the fourth pixel row through the fourth scan line GWPL4.

[0131] Next, the fifth light-emitting stage 405 that receives the light-off signal through the fourth light-emitting start line ESL4 branched from the fourth light-emitting line EL4 can supply the light-emitting signal with a cut-off level to the fifth pixel row through the fifth light-emitting line EL5. The fifth scan stage 305 that receives the scan start signal through the fourth scan start line GSL4 branched from the fourth scan line GWPL4 can supply the scan signal with a conductive level to the fifth pixel row through the fifth scan line GWPL5.

[0132] Next, a seventh light-emitting stage 407 that receives a light emission-off signal through a seventh light-emission start line ESL5 branched from a fifth light-emitting line EL5 can supply a light emission signal of a cut-off level to a seventh pixel row through a seventh light-emitting line EL7. A seventh scanning stage 307 that receives a scanning start signal through a seventh scanning start line GSL5 branched from a fifth scanning line GWPL5 can supply a scanning signal of a conductive level to a seventh pixel row through a seventh scanning line GWPL7.

[0133] Next, a sixth light-emitting stage 406 that receives a light emission-off signal through a sixth light-emission start line ESL7 branched from a seventh light-emitting line EL7 can supply a light emission signal of a cut-off level to a sixth pixel row through a sixth light-emitting line EL6. A sixth scanning stage 306 that receives a scanning start signal through a seventh scanning start line GSL7 branched from a seventh scanning line GWPL7 can supply a scanning signal of a conductive level to a sixth pixel row through a sixth scanning line GWPL6.

[0134] Next, an eighth light-emitting stage 408 that receives a light emission-off signal through a sixth light-emission start line ESL6 branched from a sixth light-emitting line EL6 can supply a light emission signal of a cut-off level to an eighth pixel row through an eighth light-emitting line EL8. An eighth scanning stage 308 that receives a scanning start signal through a sixth scanning start line GSL6 branched from a sixth scanning line GWPL6 can supply a scanning signal of a conductive level to an eighth pixel row through an eighth scanning line GWPL8.

[0135] As described above, the order of supplying a scanning signal of a conductive level and a light emission signal of a cut-off level to each pixel row can be regularly repeated based on four pixel rows. The time points at which the light emission signals of the cut-off level are provided to each pixel row can be in the order of the first pixel row, the third pixel row, the second pixel row, the fourth pixel row, the fifth pixel row, the seventh pixel row, the sixth pixel row, the eighth pixel row,.... Similarly, the time points at which the scanning signals of the conductive level are provided to each pixel row can be in the order of the first pixel row, the third pixel row, the second pixel row, the fourth pixel row, the fifth pixel row, the seventh pixel row, the sixth pixel row, the eighth pixel row,....

[0136] According to some example embodiments, the periods during which the light emission signals of the cut-off level are provided to each pixel row can overlap. Additionally, the periods during which the scanning signals of the conductive level are provided to each pixel row can be non-overlapping. The period during which the light emission signals of the cut-off level are provided to each pixel can be three times or more the period during which the scanning signals of the conductive level are provided.

[0137] Figure 6 is a graph showing the output voltage of a data driver in a display device according to some example embodiments of the present disclosure over time.

[0138] ReferenceFigure 6 , according to the states of the red pixel R and the blue pixel B connected to the (2p - 1)th data line, the output voltage of the data driver 20 can be different.

[0139] According to some exemplary embodiments, when a scan signal with an on-level is supplied to the scan line connected to the odd scan lines based on the first data line DL1, the red pixel R can emit light. When a scan signal with an on-level is supplied to the scan line connected to the even scan lines, the blue pixel B can emit light. When the blue pixel B emits light, the voltage level of the data signal output from the data driver 20 can be greater than the voltage level of the data signal when the red pixel R emits light.

[0140] Since the time points at which the scan signal with an on-level is provided to each pixel row are the first pixel row, the third pixel row, the second pixel row, the fourth pixel row, the fifth pixel row, the seventh pixel row, the sixth pixel row, the eighth pixel row, …, the red pixel R of the first pixel row, the red pixel R of the third pixel row, the blue pixel B of the second pixel row, the blue pixel B of the fourth pixel row, the red pixel R of the fifth pixel row, the red pixel R of the seventh pixel row, the blue pixel B of the sixth pixel row, and the blue pixel B of the eighth pixel row can emit light in sequence accordingly. When the light emission state of the red pixel R has ended and the light emission state of the blue pixel B has started, the voltage level of the data signal output from the data driver 20 can increase. When the light emission state of the blue pixel B has ended and the light emission state of the red pixel R has started, the voltage level of the data signal output from the data driver 20 can decrease. As described above, the voltage level of the data signal output from the data driver 20 can swing according to the light emission states of the red pixel R and the blue pixel B.

[0141] Meanwhile, when the voltage level of the data signal output from the data driver 20 swings, a large amount of power can be consumed. Contrary to the structure in which one red pixel R and one blue pixel B emit light alternately, according to some exemplary embodiments, since two red pixel Rs and two blue pixel Bs emit light alternately, the number of swings can be almost halved. That is, the power consumption caused by the swings can be halved.

[0142] According to some exemplary embodiments, the number of swings per frame can be equal to or less than half of the number of pixel rows included in the pixel unit 50. For example, when the pixel unit 50 is an FHD (1920 * 1080) resolution with 1920 pixel rows, the number of swings can be 959.

[0143] In addition, according to some example embodiments, the order in which a scan signal of a conduction level is provided to each pixel corresponds to the order in which a light emission signal of a cut-off level is provided to each pixel, and thus the period during which the light emission signal of the cut-off level is provided can be easily controlled.

[0144] Next, a display device according to some example embodiments will be described in more detail. Hereinafter, descriptions of components identical to those of Figures 1 to 6 will be omitted, and the same or similar reference numerals are used for components identical to those of Figures 1 to 6 the components.

[0145] Figure 7 is a block diagram illustrating the relationship between a data driver, a scan driver, a light emission driver, and pixel units in a display device according to some example embodiments. Figure 8 is a diagram illustrating Figure 7 the timing charts of a scan signal and a light emission signal supplied from each scan line and each light emission line of Figure 9 to each pixel row. Figure 7 is a graph showing the output voltage of the data driver in the display device of

[0146] with respect to time. Figures 7 to 9 Referring to Figures 4 to 6 , a display device according to some example embodiments is different from the embodiment of

[0147] in that a red pixel R or a blue pixel B included in one pixel column emits light continuously three times. The scan driver 30_1 may include a plurality of scan stages 301 to 309 arranged in the column direction, and the light emission driver 40_1 may include a plurality of light emission stages 401 to 409 arranged in the column direction.

[0148] First, the first scan stage 301 and the first light emission stage 401 may respectively receive a scan start signal and a light emission off signal from the scan controller 121, and may supply a scan signal of a conduction level and a light emission signal of a cut-off level to the first pixel row through the first scan line GWPL1 and the first light emission line EL1.

[0149] Next, the second light-emitting stage 402 that receives a light-off signal from the third light-emitting start line ESL3 branched from the third light-emitting line EL3 can supply a light signal at a cut-off level to the second pixel row through the second light-emitting line EL2. The second scanning stage 302 that receives a scanning start signal from the third scanning start line GSL3 branched from the third scanning line GWPL3 can supply a scanning signal at a conductive level to the second pixel row through the second scanning line GWPL2.

[0150] Next, the fourth light-emitting stage 404 that receives a light-off signal from the second light-emitting start line ESL2 branched from the second light-emitting line EL2 can supply a light signal at a cut-off level to the fourth pixel row through the fourth light-emitting line EL4. The fourth scanning stage 304 that receives a scanning start signal from the second scanning start line GSL2 branched from the second scanning line GWPL2 can supply a scanning signal at a conductive level to the fourth pixel row through the fourth scanning line GWPL4.

[0151] Next, the sixth light-emitting stage 406 that receives a light-off signal from the fourth light-emitting start line ESL4 branched from the fourth light-emitting line EL4 can supply a light signal at a cut-off level to the sixth pixel row through the sixth light-emitting line EL6. The sixth scanning stage 306 that receives a scanning start signal from the fourth scanning start line GSL4 branched from the fourth scanning line GWPL4 can supply a scanning signal at a conductive level to the sixth pixel row through the sixth scanning line GWPL6.

[0152] Next, the fifth light-emitting stage 405 that receives a light-off signal from the sixth light-emitting start line ESL6 branched from the sixth light-emitting line EL6 can supply a light signal at a cut-off level to the fifth pixel row through the fifth light-emitting line EL5. The fifth scanning stage 305 that receives a scanning start signal from the sixth scanning start line GSL6 branched from the sixth scanning line GWPL6 can supply a scanning signal at a conductive level to the fifth pixel row through the fifth scanning line GWPL5.

[0153] Next, the seventh light-emitting stage 407 that receives a light-off signal from the fifth light-emitting start line ESL5 branched from the fifth light-emitting line EL5 can supply a light signal at a cut-off level to the seventh pixel row through the seventh light-emitting line EL7. The seventh scanning stage 307 that receives a scanning start signal from the fifth scanning start line GSL5 branched from the fifth scanning line GWPL5 can supply a scanning signal at a conductive level to the seventh pixel row through the seventh scanning line GWPL7.

[0154] Next, the ninth light-emitting stage 409 that receives a light emission turn-off signal from the seventh light emission start line ESL7 branched from the seventh light emission line EL7 can supply a light emission signal at a cut-off level to the ninth pixel row through the ninth light emission line EL9. The ninth scanning stage 309 that receives a scanning start signal from the seventh scanning start line GSL7 branched from the seventh scanning line GWPL7 can supply a scanning signal at a conductive level to the ninth pixel row through the ninth scanning line GWPL9.

[0155] Next, the eighth light-emitting stage 408 that receives a light emission turn-off signal from the ninth light emission start line ESL9 branched from the ninth light emission line EL9 can supply a light emission signal at a cut-off level to the eighth pixel row through the eighth light emission line EL8. The eighth scanning stage 308 that receives a scanning start signal from the ninth scanning start line GSL9 branched from the ninth scanning line GWPL9 can supply a scanning signal at a conductive level to the eighth pixel row through the eighth scanning line GWPL8.

[0156] As described above, the order of supplying a scanning signal at a conductive level and a light emission signal at a cut-off level to each pixel row can be regularly repeated based on six pixel rows starting from the second pixel row. The time points at which the light emission signals at the cut-off level are supplied to each pixel row can be in the order of the first pixel row, the third pixel row, the second pixel row, the fourth pixel row, the sixth pixel row, the fifth pixel row, the seventh pixel row, the ninth pixel row, the eighth pixel row,.... Similarly, the time points at which the scanning signals at the conductive level are supplied to each pixel row can be in the order of the first pixel row, the third pixel row, the second pixel row, the fourth pixel row, the sixth pixel row, the fifth pixel row, the seventh pixel row, the ninth pixel row, the eighth pixel row,....

[0157] Since the time points at which the scanning signals at the conductive level are supplied to each pixel row can be in the order of the first pixel row, the third pixel row, the second pixel row, the fourth pixel row, the sixth pixel row, the fifth pixel row, the seventh pixel row, the ninth pixel row, the eighth pixel row,...., the red pixels R in the first pixel row, the red pixels R in the third pixel row, the blue pixels B in the second pixel row, the blue pixels B in the fourth pixel row, the blue pixels B in the sixth pixel row, the red pixels R in the fifth pixel row, the red pixels R in the seventh pixel row, the red pixels R in the ninth pixel row, and the blue pixels B in the eighth pixel row can emit light in sequence accordingly.

[0158] Contrary to the case where one red pixel R and one blue pixel B emit light alternately, in this embodiment, since three red pixels R and three blue pixels B emit light alternately, the number of swings can be reduced to almost one-third. That is, the power consumption caused by the swings can be reduced.

[0159] According to some example embodiments, the number of wobbles per frame may be equal to or less than one third of the number of pixel rows included in the pixel unit 50. For example, when the pixel unit 50 is an FHD (1920*1080) resolution with 1920 pixel rows, the number of wobbles may be 640.

[0160] Figure 10 is a block diagram illustrating the relationship between a data driver, a scan driver, a light-emitting driver, and a pixel unit in a display device according to some example embodiments. Figure 11 is a diagram illustrating from Figure 10 the timing diagrams of the scan signals and the light-emitting signals supplied to each pixel row from each scan line and each light-emitting line of Figure 12 is a diagram illustrating Figure 10 the graph of the output voltage of the data driver in the display device of

[0161] Referring to Figures 10 to 12 , the display device according to the present embodiment is different from the embodiment according to Figures 4 to 6 in that the red pixel R or the blue pixel B included in one pixel column emits light continuously five times. The scan driver 30_2 may include a plurality of scan stages 301 to 309 arranged in the column direction, and the light-emitting driver 40_2 may include a plurality of light-emitting stages 401 to 409 arranged in the column direction.

[0162] The order of providing a scan signal with a conductive level and a light-emitting signal with a cut-off level to each pixel row may be regularly repeated based on ten pixel rows starting from the second pixel row. The time points at which the light-emitting signal with the cut-off level is provided to each pixel row may be in the order of the first pixel row, the third pixel row, the fifth pixel row, the second pixel row, the fourth pixel row, the sixth pixel row, the eighth pixel row, the tenth pixel row, the seventh pixel row, the ninth pixel row, the eleventh pixel row, the thirteenth pixel row, the fifteenth pixel row, the twelfth pixel row, the fourteenth pixel row,.... Similarly, the time points at which the scan signal with the conductive level is provided to each pixel row may be in the order of the first pixel row, the third pixel row, the fifth pixel row, the second pixel row, the fourth pixel row, the sixth pixel row, the eighth pixel row, the tenth pixel row, the seventh pixel row, the ninth pixel row, the eleventh pixel row, the thirteenth pixel row, the fifteenth pixel row, the twelfth pixel row, the fourteenth pixel row,....

[0163] Since the time points at which the scanning signals of the conduction levels are supplied to each pixel row can be in the order of the first pixel row, the third pixel row, the fifth pixel row, the second pixel row, the fourth pixel row, the sixth pixel row, the eighth pixel row, the tenth pixel row, the seventh pixel row, the ninth pixel row, the eleventh pixel row, the thirteenth pixel row, the fifteenth pixel row, the twelfth pixel row, the fourteenth pixel row, …, the red pixels R of the first pixel row, the red pixels R of the third pixel row, the red pixels R of the fifth pixel row, the blue pixels B of the second pixel row, the blue pixels B of the fourth pixel row, the blue pixels B of the sixth pixel row, the blue pixels B of the eighth pixel row, the blue pixels B of the tenth pixel row, the red pixels R of the seventh pixel row, the red pixels R of the ninth pixel row, the red pixels R of the eleventh pixel row, the red pixels R of the thirteenth pixel row, the red pixels R of the fifteenth pixel row, the blue pixels B of the twelfth pixel row, and the blue pixels B of the fourteenth pixel row can emit light in corresponding order.

[0164] Contrary to the case where one red pixel R and one blue pixel B emit light alternately, in this embodiment, since five red pixels R and five blue pixels B emit light alternately, the number of swings can be reduced to almost one-fifth. That is, the power consumption caused by swings (e.g., voltage variations or swings) can be reduced.

[0165] According to some example embodiments, the number of swings per frame can be equal to or less than one-fifth of the number of pixel rows included in the pixel unit 50. For example, when the pixel unit 50 is an FHD (1920*1080) resolution with 1920 pixel rows, the number of swings can be 384.

[0166] Figure 13 is a block diagram illustrating the relationship between a data driver, a scan driver, a light-emitting driver, and a pixel unit in a display device according to some example embodiments. Figure 14 is illustrated from Figure 13 the timing diagrams of the scan signals and the light-emitting signals supplied to each pixel row from each scan line and each light-emitting line.

[0167] Refer to Figure 13 and Figure 14 , the display device according to this embodiment is different from the embodiments of Figure 4 and Figure 5 in that the light-emitting signals of the cut-off level are provided in a progressive manner corresponding to the arrangement order to each pixel row. The scan driver 30_3 can include a plurality of scan stages 301 to 308 arranged in the column direction, and the light-emitting driver 40_3 can include a plurality of light-emitting stages 401 to 408 arranged in the column direction.

[0168] Since the time points at which the scan signals of the conduction levels are supplied to each pixel row are the first pixel row, the third pixel row, the second pixel row, the fourth pixel row, the fifth pixel row, the seventh pixel row, and the sixth pixel row, the eighth pixel row, …, the red pixels R of the first pixel row, the red pixels R of the third pixel row, the blue pixels B of the second pixel row, the blue pixels B of the fourth pixel row, the red pixels R of the fifth pixel row, the red pixels R of the seventh pixel row, the blue pixels B of the sixth pixel row, and the blue pixels B of the eighth pixel row can emit light sequentially.

[0169] Meanwhile, the time points at which the light emission signals of the cut-off levels are supplied to each pixel row can be in the order of the first pixel row, the second pixel row, the third pixel row, the fourth pixel row, the fifth pixel row, the sixth pixel row, the seventh pixel row, the eighth pixel row, ….

[0170] The period during which the light emission signals of the cut-off levels are supplied to each pixel can be four times or more the period during which the scan signals of the conduction levels are supplied.

[0171] Although some exemplary embodiments of the present disclosure have been described with reference to the accompanying drawings, those skilled in the art to which the present disclosure pertains will understand that the embodiments can be implemented in other specific forms without departing from the technical spirit and scope of the embodiments according to the present disclosure, as defined in the claims and their equivalents. Therefore, it should be understood that the above embodiments are illustrative in all respects and not restrictive.

Claims

1. A display device, comprising: A display panel including a plurality of pixels arranged in a row direction and a column direction; A data driver configured to transmit data signals to the plurality of pixels through a plurality of data lines; A scan driver configured to transmit scan signals to the plurality of pixels through a plurality of scan lines; And A light-emitting driver configured to transmit light-emitting signals to the plurality of pixels through a plurality of light-emitting lines, Wherein each of the scan lines and the light-emitting lines is connected to the pixels arranged in the row direction among the plurality of pixels, The data lines are connected to the pixels arranged in the column direction among the plurality of pixels, and The scan driver is configured to transmit the scan signals of the conduction level to the display panel in an interlaced manner, Wherein red pixels and blue pixels are connected to one of the plurality of data lines, and the red pixels and the blue pixels alternate in the column direction, and Wherein the data driver is configured to continuously transmit the data signals to at least two red pixels or at least two blue pixels connected to the one data line, such that the at least two red pixels and the at least two blue pixels emit light alternately during one frame.

2. The display device according to claim 1, wherein, The light-emitting driver is configured to transmit the light-emitting signals of the cut-off level to the pixels arranged in the row direction, and While the transmission of the light-emitting signals of the cut-off level is maintained, the scan signals of the conduction level are transmitted to the pixels arranged in the row direction.

3. The display device according to claim 2, wherein The light-emitting driver is configured to transmit the light-emitting signals of the cut-off level in an interlaced manner.

4. The display device according to claim 2, wherein, In each of the plurality of pixels, the period during which the transmission of the light-emitting signals of the cut-off level is maintained is three times or more the period during which the scan signals of the conduction level are maintained.

5. The display device according to claim 1, wherein, The scan signals of the conduction level are provided in the order of the pixels arranged in the first row, the pixels arranged in the third row, the pixels arranged in the second row, and the pixels arranged in the fourth row among the plurality of pixels.

6. The display device according to claim 5, wherein, The light-emitting signals of the cut-off level are provided in the order of the pixels arranged in the first row, the pixels arranged in the third row, the pixels arranged in the second row, and the pixels arranged in the fourth row among the plurality of pixels.

7. The display device according to claim 1, wherein, Green pixels are connected to another one of the plurality of data lines.

8. The display device according to claim 1, wherein, The data driver is configured to transmit swinging data signals of different levels to the one data line, and The number of swings of the data signals of different levels per frame is less than half of the number of rows of the plurality of pixels.

9. The display device according to claim 1, wherein, The scan driver includes a plurality of scan stages connected to each of the scan lines and a scan start line, and Each of the scan stages is configured to supply the scan signals of the conduction level to the pixels connected to each of the scan lines in response to a scan start signal provided to the scan start line.

10. The display device according to claim 9, wherein, The plurality of scan stages include: A first scan stage connected to the pixels arranged in the first row among the plurality of pixels through a first scan line; A second scan stage connected to the pixels arranged in the second row among the plurality of pixels through a second scan line; and A third scan stage connected to the pixels arranged in the third row among the plurality of pixels through a third scan line, and The third scan stage is connected to a scan start line branched from the first scan line.

11. The display device according to claim 10, wherein, The second scan stage is connected to a scan start line branched from the third scan line.

12. The display device according to claim 1, wherein, The light emitting driver is configured to transmit the light emitting signal of the cut-off level in a progressive manner.

13. A display device, comprising: Data lines; A plurality of red pixels and a plurality of blue pixels connected to the data lines; And Scan lines connected to the plurality of red pixels and the plurality of blue pixels to provide scan signals and light emitting lines for providing light emitting signals, Wherein the red pixels and the blue pixels are alternately arranged along the data line, and The scan signals are continuously provided to at least two red pixels, and then continuously provided to at least two blue pixels, so that the at least two red pixels and the at least two blue pixels emit light alternately during one frame.

14. The display device according to claim 13, wherein, The scan signals continuously provided to the at least two red pixels do not overlap in time.

15. The display device according to claim 14, wherein, The light emitting signals provided to the at least two red pixels overlap at least partially in time.

16. The display device according to claim 15, wherein, The light emitting signals provided to the at least two red pixels are provided continuously.

17. The display device according to claim 13, wherein, Each of the red pixels and the blue pixels includes a storage capacitor, a light emitting diode, and seven transistors.

Images