Display device and method of driving same

Abstract

The invention relates to a display device and a method of driving the same. The display device includes: a display panel including first direction data lines extending in a first direction, a plurality of second direction data lines extending in a second direction different from the first direction, gate lines extending in the second direction, and pixels connected to the first direction data lines and the gate lines; a gate driver configured to apply a gate signal to the gate line; and a data driver configured to apply a data voltage to the second direction data line.

Description

Technical Field

[0001] Embodiments of the inventive concept relate to a display device and a method of driving the display device. Background Art

[0002] A display device generally includes a display panel and a display panel driver. The display panel displays an image using input image data and is composed of a plurality of gate lines, a plurality of data lines, and a plurality of pixels. The display panel driver includes two main components: a gate driver that sends signals to the gate lines and a data driver that is responsible for delivering data voltages to the data lines.

[0003] Compared to standard display panels, specialized display panels, such as those used in automotive interiors, are typically characterized by significantly higher horizontal resolutions. However, driving specialized display panels with conventional gate drivers and conventional data drivers may present challenges. For example, the number of source driver chips may increase, which may increase manufacturing costs. Additionally, frequency division driving methods may not be possible due to a mismatch between the type of content used and the scan direction. Summary of the invention

[0004] An embodiment of the inventive concept provides a display device including a structure in which a plurality of second direction data lines extending in a second direction are connected to a first direction data line extending in a first direction to reduce the manufacturing cost of the display device. The display device according to an embodiment of the inventive concept supports a frequency division driving method.

[0005] Embodiments of the inventive concept also provide a method of driving the display device.

[0006] A display device according to an embodiment conceived in the present invention includes: a display panel, including first direction data lines extending in a first direction, a plurality of second direction data lines extending in a second direction different from the first direction, gate lines extending in the second direction, and pixels connected to the first direction data lines and the gate lines; a gate driver configured to apply a gate signal to the gate line; and a data driver configured to apply a data voltage to the second direction data line.

[0007] The display panel includes a first display area, a second display area disposed adjacent to the first display area in a first direction, and a third display area disposed adjacent to the second display area in the first direction, wherein the first display area, the second display area, and the third display area are driven at independent frequencies.

[0008] The gate signal applied to the first display area, the gate signal applied to the second display area, and the gate signal applied to the third display area are independently applied.

[0009] The display panel includes: a first first direction data line extending in the first direction; a first second direction data line, a second second direction data line and a third second direction data line connected to the first first direction data line; a second first direction data line extending in the first direction; a fourth second direction data line, a fifth second direction data line and a sixth second direction data line connected to the second first direction data line; a third first direction data line extending in the first direction; and a seventh second direction data line, an eighth second direction data line and a ninth second direction data line connected to the third first direction data line, wherein the first direction data lines include the first first direction data line, the second first direction data line and the third first direction data line.

[0010] The first first direction data line includes a first inclined portion and a second inclined portion, and wherein the third first direction data line includes a third inclined portion.

[0011] The display panel includes: a 1-1 first direction data line extending in the first direction; a first second direction data line connected to the 1-1 first direction data line; a 1-2 first direction data line extending in the first direction and spaced apart from the 1-1 first direction data line; a second second direction data line and a third second direction data line connected to the 1-2 first direction data line; a second first direction data line extending in the first direction; a fourth second direction data line, a fifth second direction data line and a sixth second direction data line connected to the second first direction data line; a third first direction data line extending in the first direction; a seventh second direction data line and an eighth second direction data line connected to the third first direction data line; a fourth first direction data line extending in the first direction; and a ninth second direction data line connected to the fourth first direction data line, wherein the first direction data lines include the 1-1 first direction data line, the 1-2 first direction data line, the second first direction data line, the third first direction data line and the fourth first direction data line.

[0012] The gate driver extends along a first side of the display panel extending in a first direction, and wherein the data driver extends along the first side of the display panel.

[0013] The gate driver is adjacent to a first side of the display panel, and wherein the data driver includes a plurality of source driving chips connected to the first side of the display panel.

[0014] The data driver includes a plurality of source driving chips connected to the display panel, and the display device further includes a plurality of source switches disposed between the source driving chips and the second direction data lines.

[0015] The source switch is integrated on the display panel.

[0016] The source switch is integrated into the source driver chip.

[0017] The data driver includes a first source group corresponding to a first display area of ​​the display panel and a second source group corresponding to a second display area of ​​the display panel, wherein the first source group includes a plurality of first source driver chips, and wherein the second source group includes a plurality of second source driver chips, and the display device further includes a plurality of first source group switches arranged between the first source driver chip and the second direction data line in the first display area and a plurality of second source group switches arranged between the second source driver chip and the second direction data line in the second display area.

[0018] In a first period, the first source group switch is turned on and the second source group switch is turned on, and wherein, in a second period, the first source group switch is turned on and the second source group switch is turned off.

[0019] In a first period, the data voltage is less than a target voltage, wherein in a second period, the data voltage is equal to or greater than the target voltage, and wherein, for the same grayscale value, a first data voltage applied to the first source driver chip is the same as a second data voltage applied to the second source driver chip.

[0020] The first period is an over-driving period, wherein the second period is a normal driving period, and wherein, for the same grayscale value, a first data voltage applied to the first source driving chip is different from a second data voltage applied to the second source driving chip.

[0021] The display panel includes a first pixel and a second pixel arranged in a first pixel row and a third pixel and a fourth pixel arranged in a second pixel row, wherein the first pixel is connected to the first gate line and the 1-1 first direction data line, wherein the second pixel is connected to the first gate line and the 1-2 first direction data line, wherein the third pixel is connected to the first gate line and the 2-1 first direction data line, wherein the fourth pixel is connected to the first gate line and the 2-2 first direction data line, and wherein the first direction data lines include the 1-1 first direction data line, the 1-2 first direction data line, the 2-1 first direction data line and the 2-2 first direction data line.

[0022] A method for driving a display device includes: outputting a gate signal to a gate line of a display panel, the display panel including a first direction data line extending in a first direction, a plurality of second direction data lines extending in a second direction different from the first direction, and pixels connected to the first direction data lines and the gate line, wherein the gate line extends in the second direction; and outputting a data voltage to the second direction data line.

[0023] The display panel includes a first display area, a second display area disposed adjacent to the first display area in a first direction, and a third display area disposed adjacent to the second display area in the first direction, wherein the first display area, the second display area, and the third display area are driven at independent frequencies.

[0024] The gate signal applied to the first display area, the gate signal applied to the second display area, and the gate signal applied to the third display area are independently applied.

[0025] The data driver includes a first source group corresponding to a first display area of ​​the display panel and a second source group corresponding to a second display area of ​​the display panel, wherein the first source group includes a plurality of first source driver chips, wherein the second source group includes a plurality of second source driver chips, wherein in a first time period, a plurality of first source group switches arranged between the first source driver chips and the second direction data lines in the first display area are turned on, and a plurality of second source group switches arranged between the second source driver chips and the second direction data lines in the second display area are turned on, and wherein in a second time period, the first source group switches are turned on and the second source group switches are turned off.

[0026] According to a display device and a method of driving the display device according to an embodiment of the inventive concept, a display panel includes a structure in which a plurality of second direction data lines extending in a second direction are connected to a first direction data line extending in a first direction. Therefore, the number of source driver chips can be reduced in a display panel having a high resolution in a horizontal direction to reduce manufacturing costs.

[0027] In addition, the gate driver and data driver of the embodiment of the inventive concept can extend in the horizontal direction across the display panel having a high resolution in the horizontal direction. This arrangement ensures that the content usage type and the scanning direction are the same, thereby enabling a frequency division driving method in which a plurality of display areas are driven at different driving frequencies. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and other features of the present inventive concept will become more apparent by describing in detail embodiments of the present inventive concept with reference to the accompanying drawings, in which:

[0029] Figure 1 is a block diagram illustrating a display device according to an embodiment of the inventive concept;

[0030] Figure 2A , Figure 2B , Figure 2C and Figure 2D It is a graphic Figure 1 A diagram showing various content usage types of the display panel;

[0031] Figure 3 It is a graphic Figure 1 Figure 2 is a diagram showing an example of a display panel, a gate driver, and a data driver;

[0032] Figure 4 It is a graphic Figure 1 Figure 1 is a diagram showing an example of a display panel, a gate driver and a data driver;

[0033] Figure 5 It is a graphic Figure 1 Figure 2 is a diagram showing an example of a display panel, a gate driver, and a data driver;

[0034] Figure 6 It is a graphic Figure 3 An example diagram of a region A;

[0035] Figure 7 It is a graphic Figure 1 A diagram of connections between first direction data lines, gate lines and pixels of a display panel;

[0036] Fig. 8A It is a graphic Figure 3 A diagram of an example of a region A;

[0037] Figure 8B It is a graphic Figure 3 A diagram of an example of a region A;

[0038] Fig. 9 It is a graphic control Fig. 8A and Figure 8B A timing diagram of a method of switching the first source group, the second source group, and the third source group in a structure of FIG.

[0039] Fig.10 It is a graphic control Fig. 8A and Figure 8B A timing diagram of a method of switching the first source group, the second source group, and the third source group in a structure of FIG.

[0040] Fig.11 is a diagram illustrating connections between first direction data lines, gate lines, and pixels of a display panel according to an embodiment of the inventive concept; and

[0041] Fig.12 is a block diagram illustrating an electronic device according to an embodiment of the inventive concept. DETAILED DESCRIPTION

[0042] Hereinafter, embodiments of the inventive concept will be described in detail with reference to the accompanying drawings.

[0043] Figure 1 is a block diagram illustrating a display device according to an embodiment of the inventive concept.

[0044] refer to Figure 1The display device includes a display panel 100 and a display panel driver. The display panel driver includes a driving controller 200, a gate driver 300, a gamma reference voltage generator 400 and a data driver 500.

[0045] For example, the driving controller 200 and the data driver 500 may be integrally formed. For example, the driving controller 200, the gamma reference voltage generator 400 and the data driver 500 may be integrally formed. A driving module including at least the integrally formed driving controller 200 and the data driver 500 may be referred to as a timing controller embedded data driver (TED).

[0046] The display panel 100 has a display area on which an image is displayed and a peripheral area adjacent to the display area.

[0047] The display panel 100 includes first direction data lines DLH extending in a first direction D1, a plurality of second direction data lines DLV1, DLV2 and DLV3 extending in a second direction D2 different from the first direction D1, gate lines GL extending in the second direction D2, and pixels P connected to the first direction data lines DLH and the gate lines GL.

[0048] The driving controller 200 receives input image data and input control signals from an external device. The input image data may include red image data, green image data, and blue image data. The input image data may include white image data. The input image data may include magenta image data, yellow image data, and cyan image data. The input control signal may include a master clock signal and a data enable signal. The input control signal may further include a vertical synchronization signal and a horizontal synchronization signal.

[0049] The driving controller 200 generates a gate control signal CONT1 , a data control signal CONT2 , a gamma control signal CONT3 , and a data signal DATA based on input image data and an input control signal.

[0050] The driving controller 200 generates a gate control signal CONT1 for controlling the operation of the gate driver 300 based on the input control signal, and outputs the gate control signal CONT1 to the gate driver 300. The gate control signal CONT1 may include a vertical start signal and a gate clock signal.

[0051] The driving controller 200 generates a data control signal CONT2 for controlling the operation of the data driver 500 based on the input control signal, and outputs the data control signal CONT2 to the data driver 500. The data control signal CONT2 may include a horizontal start signal and a load signal.

[0052] The driving controller 200 generates a data signal DATA based on input image data. The driving controller 200 outputs the data signal DATA to the data driver 500.

[0053] The driving controller 200 generates a gamma control signal CONT3 for controlling the operation of the gamma reference voltage generator 400 based on the input control signal, and outputs the gamma control signal CONT3 to the gamma reference voltage generator 400 .

[0054] The gate driver 300 generates a gate signal for driving the gate line GL in response to the gate control signal CONT1 received from the driving controller 200. The gate driver 300 outputs the gate signal to the gate line GL. For example, the gate driver 300 may sequentially output the gate signal to the gate line GL. For example, the gate driver 300 may be mounted on the peripheral area of ​​the display panel 100. For example, the gate driver 300 may be integrated on the peripheral area of ​​the display panel 100.

[0055] The gamma reference voltage generator 400 generates the gamma reference voltage VGREF in response to the gamma control signal CONT3 received from the driving controller 200. The gamma reference voltage generator 400 supplies the gamma reference voltage VGREF to the data driver 500.

[0056] In an embodiment, the gamma reference voltage generator 400 may be provided in the driving controller 200 or in the data driver 500. In other words, the gamma reference voltage generator 400 may be integrated with the driving controller 200 or the data driver 500.

[0057] The data driver 500 receives the data control signal CONT2 and the data signal DATA from the driving controller 200, and receives the gamma reference voltage VGREF from the gamma reference voltage generator 400. The data driver 500 converts the data signal DATA into a data voltage having an analog form using the gamma reference voltage VGREF. The data driver 500 outputs the data voltage to the second direction data lines DLV1, DLV2, and DLV3.

[0058] The gate driver 300 may extend along the first side of the display panel 100. For example, the gate driver 300 may extend in the first direction D1. In addition, the data driver 500 may extend along the first side of the display panel 100. Figure 1The gate driver 300 is disposed on the upper end portion of the peripheral area of ​​the display panel 100, and the data driver 500 is disposed adjacent to the upper side of the display panel 100, but the inventive concept may not be limited thereto. For example, the gate driver 300 may be disposed on the lower end portion of the peripheral area of ​​the display panel 100, or disposed on both the upper end portion and the lower end portion of the peripheral area of ​​the display panel 100. In addition, the data driver 500 may be disposed adjacent to the lower side of the display panel 100, or the data driver 500 may be disposed adjacent to the upper and lower sides of the display panel 100.

[0059] FIG. 2A to FIG. 2D It is a graphic Figure 1 FIG. 1 is a diagram of various content usage types of the display panel 100 .

[0060] refer to Figures 1 to 2D , the display panel 100 may have a high resolution in the first direction D1. For example, the display panel 100 may be an automotive display panel used in an interior of an automobile.

[0061] For example, the display panel 100 may include a first display area DA1, a second display area DA2 disposed adjacent to the first display area DA1 in the first direction D1, and a third display area DA3 disposed adjacent to the second display area DA2 in the first direction D1. The second display area DA2 may be located between the first display area DA1 and the third display area DA3.

[0062] For example, the first display area DA1 is a display area of ​​the automobile display panel corresponding to the driver's seat. For example, the third display area DA3 is a display area of ​​the automobile display panel corresponding to the passenger's seat next to the driver's seat. For example, the second display area DA2 is a display area of ​​the automobile display panel corresponding to the common portion between the driver's seat and the passenger's seat. In other words, the second display area DA2 corresponds to the area between the driver's seat and the passenger's seat.

[0063] The first display area DA1, the second display area DA2 and the third display area DA3 can be driven at independent frequencies. For example, when the first display area DA1 displays a still image and the third display area DA3 displays a moving image, the first display area DA1 can be driven at a low frequency and the third display area DA3 can be driven at a high frequency.

[0064] The gate signal applied to the first display area DA1, the gate signal applied to the second display area DA2, and the gate signal applied to the third display area DA3 may be applied independently. For example, the gate signal applied to the first display area DA1, the gate signal applied to the second display area DA2, and the gate signal applied to the third display area DA3 may be shielded independently.

[0065] like Figure 2A As shown in , the first display area DA1 may have a privacy mode, the second display area DA2 may have a public mode, and the third display area DA3 may have a public mode.

[0066] like Figure 2B As shown in , the first display area DA1 may have a public mode, the second display area DA2 may have a public mode, and the third display area DA3 may have a privacy mode.

[0067] like Figure 2C As shown in , the first display area DA1 may have a privacy mode, the second display area DA2 may have a public mode, and the third display area DA3 may have a privacy mode.

[0068] like Figure 2D As shown in , the first display area DA1 may have a common mode, the second display area DA2 may have a common mode, and the third display area DA3 may have a common mode.

[0069] Despite FIG. 2A to FIG. 2D In the embodiment, the display panel 100 is divided into three display areas DA1, DA2 and DA3, but the inventive concept may not be limited thereto. For example, the display panel 100 may be divided into two display areas or four or more display areas. FIG. 2A to FIG. 2D , the display areas DA1, DA2, and DA3 are arranged in the first direction D1, but the inventive concept may not be limited thereto. For example, the display area may be divided to be arranged in the second direction D2, or divided to be arranged in the first direction D1 and the second direction D2, or divided to be arranged in a direction different from the first direction D1 and the second direction D2.

[0070] For example, in the public mode, each of the display areas DA1, DA2, and DA3 may have a wide viewing angle so that the display area may be visible to a person located at the side of the display area. For example, in the privacy mode, each of the display areas DA1, DA2, and DA3 may have a narrow viewing angle so that the display area may not be visible to a person located at the side of the display area.

[0071] In the present embodiment, the gate driver 300 extends along the longer side of the display panel 100. This arrangement makes both the scanning direction and the content usage type determined by the orientation of the first display area DA1, the second display area DA2, and the third display area DA3 consistent with the first direction D1. Therefore, a frequency division driving method in which the plurality of display areas DA1, DA2, and DA3 are driven at different driving frequencies can be applied to the display device.

[0072] Figure 3 It is a graphic Figure 1 FIG. 1 is a diagram of an example of a display panel 100, a gate driver 300, and a data driver 500.

[0073] refer to Figures 1 to 3 , the gate driver 300 may be integrated on the display panel 100 so that the gate driver 300 is adjacent to the first side of the display panel 100. In addition, the data driver 500 may include a plurality of source driving chips S1, S2, S3, S4, S5, S6, S7, S8, and S9 connected to the first side of the display panel 100.

[0074] The data driver 500 may include a first source group SG1, a second source group SG2, and a third source group SG3. For example, the first source group SG1 may correspond to the first display area DA1, the second source group SG2 may correspond to the second display area DA2, and the third source group SG3 may correspond to the third display area DA3. Figures 2A to 3 , the display panel 100 includes three display areas and the data driver 500 includes three source groups, but the inventive concept may not be limited thereto. For example, the display panel 100 may include two display areas, and the data driver 500 may include two source groups. For example, the display panel 100 may include four or more display areas, and the data driver 500 may include four or more source groups.

[0075] The first source group SG1 may include first source driving chips S1, S2, and S3. The second source group SG2 may include second source driving chips S4, S5, and S6. The third source group SG3 may include third source driving chips S7, S8, and S9.

[0076] In the present embodiment, the first source group SG1 may further include a first printed circuit board PCB1 connected to the first source driver chips S1, S2 and S3. The second source group SG2 may further include a second printed circuit board PCB2 connected to the second source driver chips S4, S5 and S6. The third source group SG3 may further include a third printed circuit board PCB3 connected to the third source driver chips S7, S8 and S9.

[0077] like Figure 3As shown in , the display panel 100 may include a first first direction data line DLH1 extending in the first direction D1, a first second direction data line DLV11 connected to the first first direction data line DLH1, a second second direction data line DLV12, and a third second direction data line DLV13. The display panel 100 may also include a second first direction data line DLH2 extending in the first direction D1, a fourth second direction data line DLV21 connected to the second first direction data line DLH2, a fifth second direction data line DLV22, and a sixth second direction data line DLV23. The display panel 100 may further include a third first direction data line DLH3 extending in the first direction D1, a seventh second direction data line DLV31 connected to the third first direction data line DLH3, an eighth second direction data line DLV32, and a ninth second direction data line DLV33.

[0078] Figure 4 It is a graphic Figure 1 FIG. 1 is a diagram of an example of a display panel 100A, a gate driver 300, and a data driver 500.

[0079] refer to Figure 1 , FIG. 2A to FIG. 2D and Figure 4 , the shape of the display panel 100A may not be a rectangle. The outline of the display panel 100A may include an inclined portion and a curved portion.

[0080] The first source group SG1 may include a plurality of first source driving chips S1, S2, and S3. The second source group SG2 may include a plurality of second source driving chips S4, S5, and S6. The third source group SG3 may include a plurality of third source driving chips S7, S8, and S9.

[0081] In the present embodiment, the first source group SG1 may further include first printed circuit boards PCB11 and PCB12 connected to the first source driver chips S1, S2 and S3. The second source group SG2 may further include a second printed circuit board PCB2 connected to the second source driver chips S4, S5 and S6. The third source group SG3 may further include a third printed circuit board PCB3 connected to the third source driver chips S7, S8 and S9.

[0082] like Figure 4As shown in , the display panel 100A may include a first first direction data line DLH1 extending in the first direction D1, a first second direction data line DLV11 connected to the first first direction data line DLH1, a second second direction data line DLV12, and a third second direction data line DLV13. The first first direction data line DLH1 may have a contour line shape. The display panel 100A may also include a second first direction data line DLH2 extending in the first direction D1, a fourth second direction data line DLV21 connected to the second first direction data line DLH2, a fifth second direction data line DLV22, and a sixth second direction data line DLV23. The display panel 100A may further include a third first direction data line DLH3 extending in the first direction D1, a seventh second direction data line DLV31 connected to the third first direction data line DLH3, an eighth second direction data line DLV32, and a ninth second direction data line DLV33. The third first direction data line DLH3 may have a contour line shape.

[0083] The first first direction data line DLH1 may include a first inclined portion and a second inclined portion along the inclined lower side of the display panel 100A. The third first direction data line DLH3 may include a third inclined portion along the inclined upper side of the display panel 100A.

[0084] Figure 5 It is a graphic Figure 1 FIG. 1 is a diagram of an example of a display panel 100B, a gate driver 300, and a data driver 500.

[0085] refer to Figure 1 , FIG. 2A to FIG. 2D and Figure 5 , the shape of the display panel 100B may not be a rectangle. The outline of the display panel 100B may include an inclined portion and a curved portion. In this embodiment, the first direction data line may be partially formed, or may be cut into two portions.

[0086] The first source group SG1 may include a plurality of first source driving chips S1, S2, and S3. The second source group SG2 may include a plurality of second source driving chips S4, S5, and S6. The third source group SG3 may include a plurality of third source driving chips S7, S8, and S9.

[0087] In the present embodiment, the first source group SG1 may further include first printed circuit boards PCB11 and PCB12 connected to the first source driver chips S1, S2 and S3. The second source group SG2 may further include a second printed circuit board PCB2 connected to the second source driver chips S4, S5 and S6. The third source group SG3 may further include a third printed circuit board PCB3 connected to the third source driver chips S7, S8 and S9.

[0088] like Figure 5 As shown in , the display panel 100B may include a 1-1 first direction data line DLH11 extending in the first direction D1, a first second direction data line DLV11 connected to the 1-1 first direction data line DLH11, a 1-2 first direction data line DLH12 extending in the first direction D1 and spaced apart from the 1-1 first direction data line DLH11 in the first direction D1, a second second direction data line DLV12 connected to the 1-2 first direction data line DLH12, and a third second direction data line DLV13. Figure 5 As shown in , the 1-1 first direction data line DLH11 and the 1-2 first direction data line DLH12 are separated from each other. The display panel 100B may further include a second first direction data line DLH2 extending in the first direction D1, a fourth second direction data line DLV21 connected to the second first direction data line DLH2, a fifth second direction data line DLV22, and a sixth second direction data line DLV23. The display panel 100B may further include a third first direction data line DLH3 extending in the first direction D1, a seventh second direction data line DLV31 and an eighth second direction data line DLV32 connected to the third first direction data line DLH3, a fourth first direction data line DLH4 extending in the first direction D1, and a ninth second direction data line DLV4 connected to the fourth first direction data line DLH4.

[0089] Figure 6 It is a graphic Figure 3 FIG. 1 is an example of area A of FIG.

[0090] refer to Figures 1 to 6 , the second direction data lines DLV1, DLV2, DLV3, ... can be connected to the source driver chip S1. The stages ST1, ST2, ..., STP-1 and STP of the gate driver 300 can be respectively arranged between the second direction data lines DLV1, DLV2, DLV3, .... For example, the stage ST1 can be arranged between the second direction data lines DLV1 and DLV2. In addition, the stage ST2 can be arranged between the second direction data lines DLV2 and DLV3. The gate lines GL1, GL2, ... can be connected to the stages ST1, ST2, ..., STP-1 and STP. For example, the gate line GL1 can be connected to the stage ST1, and the gate line GL2 can be connected to the stage ST2. The gate lines GL1, GL2, ... can extend between the second direction data lines DLV1, DLV2, DLV3, ... respectively.

[0091] Figure 7 It is a graphic Figure 1 FIG. 1 is a diagram showing connections between first direction data lines, gate lines, and pixels of a display panel 100. FIG.

[0092] refer to Figures 1 to 7 , the display panel 100 may include first and second pixels P11 and P12 disposed in a first pixel row, third and fourth pixels P21 and P22 disposed in a second pixel row, and fifth and sixth pixels P31 and P32 disposed in a third pixel row.

[0093] The first pixel P11 may be connected to the Nth gate line GLN and the Mth first direction data line DLHM. The second pixel P12 may be connected to the N+1th gate line GLN+1 and the Mth first direction data line DLHM.

[0094] The third pixel P21 may be connected to the Nth gate line GLN and the M+1th first direction data line DLHM+1. The fourth pixel P22 may be connected to the N+1th gate line GLN+1 and the M+1th first direction data line DLHM+1.

[0095] The fifth pixel P31 may be connected to the Nth gate line GLN and the M+2th first direction data line DLHM+2. The sixth pixel P32 may be connected to the N+1th gate line GLN+1 and the M+2th first direction data line DLHM+2.

[0096] Fig. 8A It is a graphic Figure 3 FIG. 1 is an example of area A of FIG. Figure 8B It is a graphic Figure 3 FIG. 1 is an example of area A of FIG. Fig. 9 It is a graphic control Fig. 8A and Figure 8B A timing diagram of a method for switching the first source group, switching the second source group, and switching the third source group in a structure of FIG. Fig.10 It is a graphic control Fig. 8A and Figure 8B A timing diagram of a method for switching the first source group, switching the second source group, and switching the third source group in a structure of FIG.

[0097] like Fig. 8A As shown in , the second direction data lines DLV1, DLV2, DLV3, ... can be connected to the source driver chip S1. The stages ST1, ST2, ..., STP-1 and STP of the gate driver 300 can be respectively arranged between the second direction data lines DLV1, DLV2, DLV3, .... The gate lines GL1, GL2, ... can be connected to the stages ST1, ST2, ..., STP-1 and STP. The gate lines GL1, GL2, ... can extend between the second direction data lines DLV1, DLV2, DLV3, ... respectively.

[0098] The source switches SW11, SW12, SW13, ... may be respectively arranged between the source driver chip S1 and the second direction data lines DLV1, DLV2, DLV3, ... For example, the source switch SW11 may be arranged between the source driver chip S1 and the second direction data line DLV1, the source switch SW12 may be arranged between the source driver chip S1 and the second direction data line DLV2, and the source switch SW13 may be arranged between the source driver chip S1 and the second direction data line DLV3. When the source switches SW11, SW12, SW13, ... are turned on, the data voltage may be output through the second direction data lines DLV1, DLV2, DLV3, ... corresponding to the source switches SW11, SW12, SW13, ... When the source switches SW11, SW12, SW13, ... are turned off, the data voltage may not be output through the second direction data lines DLV1, DLV2, DLV3, ... corresponding to the source switches SW11, SW12, SW13, ...

[0099] like Fig. 8A As shown in , the source switches SW11 , SW12 , SW13 , . . . may be integrated on the display panel 100 .

[0100] like Figure 8B As shown in , the source switches SW11, SW12, SW13, ... may be integrated in a source driver chip. For example, the source switches SW11, SW12, SW13, ... may be integrated in a switch circuit region SWC in the source driver chip.

[0101] although Fig. 8A and Figure 8B The source switch corresponding to one source driving chip is illustrated in the figure, but the source switches can be respectively arranged between all driving chips and all second direction data lines.

[0102] For example, the first source group switch SWG1 may be disposed between the first source driver chips S1, S2, and S3 and the second direction data lines in the first display area DA1. For example, the second source group switch SWG2 may be disposed between the second source driver chips S4, S5, and S6 and the second direction data lines in the second display area DA2. For example, the third source group switch SWG3 may be disposed between the third source driver chips S7, S8, and S9 and the second direction data lines in the third display area DA3.

[0103] exist Fig. 9In an embodiment of the present invention, in the first period DU1, the data voltage VDATA is less than the target voltage, and in the second period DU2, the data voltage VDATA is equal to or greater than the target voltage. When the data voltage VDATA reaches the target voltage, only one source group (e.g., SG1) among the plurality of source groups may output the data voltage VDATA, and the remaining source groups (e.g., SG2 and SG3) among the plurality of source groups may not output the data voltage VDATA, so that power consumption may be reduced. For example, this is achieved by keeping the first source group switch SWG1 turned on in the second period DU2 and by turning off the second source group switch SWG2 and the third source group switch SWG3 in the second period DU2.

[0104] like Fig. 9 As shown in , in the first period DU1, the first source group switch SWG1 may be turned on, the second source group switch SWG2 may be turned on, and the third source group switch SWG3 may be turned on. In the second period DU2, the first source group switch SWG1 may be turned on, the second source group switch SWG2 may be turned off, and the third source group switch SWG3 may be turned off.

[0105] In this case, for the same grayscale value, the first data voltage applied to the first source driving chip may be the same as the second data voltage applied to the second source driving chip.

[0106] exist Fig.10 In an embodiment of the present invention, the first period DU1 may be a predetermined overdrive period, and the second period DU2 may be a predetermined normal drive period. Similarly, the third period DU3 may be a predetermined overdrive period, and the fourth period DU4 may be a predetermined normal drive period. In order to compensate for the charging rate, one source group (e.g., SG1) among the plurality of source groups may output a main data voltage, and the remaining source groups (e.g., SG2 and SG3) among the plurality of source groups may output an overdrive data voltage greater than the main data voltage. In an early drive period (e.g., an overdrive period), all source groups may output a data voltage. In a later drive period (e.g., a normal drive period), only the source group that outputs the main data voltage may be activated.

[0107] like Fig.10 As shown in, in the first period DU1 and the third period DU3, the first source group switch SWG1 may be turned on, the second source group switch SWG2 may be turned on, and the third source group switch SWG3 may be turned on. In the second period DU2 and the fourth period DU4, the first source group switch SWG1 may be turned on, the second source group switch SWG2 may be turned off, and the third source group switch SWG3 may be turned off.

[0108] In this case, for the same grayscale value, a first data voltage applied to the first source driving chip may be different from a second data voltage applied to the second source driving chip.

[0109] Fig.11 is a diagram illustrating connections among first direction data lines, gate lines, and pixels of a display panel according to an embodiment of the inventive concept.

[0110] refer to Fig.11 , in the display panel 100 having a high horizontal resolution, the charging rate can be doubled by the 2D-1G structure.

[0111] The display panel 100 may include first and second pixels P11 and P12 disposed in a first pixel row and third and fourth pixels P21 and P22 disposed in a second pixel row.

[0112] The first pixel P11 may be connected to the Nth gate line GLN and the 1-1 first direction data line DLH11. The second pixel P12 may be connected to the Nth gate line GLN and the 1-2 first direction data line DLH12.

[0113] The third pixel P21 may be connected to the Nth gate line GLN and the 2-1 first direction data line DLH21. The fourth pixel P22 may be connected to the Nth gate line GLN and the 2-2 first direction data line DLH22.

[0114] The display panel 100 may further include fifth and sixth pixels P31 and P32 disposed in the third pixel row. The fifth pixel P31 may be connected to the Nth gate line GLN and the 3-1st direction data line DLH31. The sixth pixel P32 may be connected to the Nth gate line GLN and the 3-2nd first direction data line DLH32.

[0115] According to this embodiment, the display panel 100 includes a structure in which a plurality of second direction data lines extending in the second direction D2 are connected to a first direction data line extending in the first direction D1, so that the number of source driving chips can be reduced in the display panel 100 having a high resolution in the horizontal direction to reduce manufacturing costs.

[0116] In addition, the gate driver 300 and the data driver 500 can extend horizontally across the display panel 100 (especially for a display panel 100 with a high horizontal resolution). This arrangement ensures that the content usage type and scanning direction are the same, thereby allowing the implementation of a frequency division driving method. In this method, multiple display areas are driven at varying frequencies.

[0117] Fig.12 is a block diagram illustrating an electronic device according to an embodiment of the inventive concept.

[0118] refer to Fig.12 , the electronic device 1000 may include a processor 1010, a memory device 1020, a storage device 1030, an input / output (I / O) device 1040, a power supply 1050, and a display device 1060. Here, the display device 1060 may be Figure 1 In addition, the electronic device 1000 may further include a plurality of ports for communicating with a video card, a sound card, a memory card, a universal serial bus (USB) device, other electronic devices, and the like.

[0119] In an embodiment, the electronic device 1000 may be implemented as an automobile display system. However, the electronic device 1000 is not limited thereto. For example, the electronic device 1000 may be implemented as a smart phone, a cellular phone, a video phone, a smart tablet, a smart watch, a tablet personal computer (PC), an automobile navigation system, a computer monitor, a laptop computer, and a head mounted display (HMD) device, etc.

[0120] The processor 1010 may perform various computing functions or various tasks. The processor 1010 may be a microprocessor, a central processing unit (CPU), an application processor (AP), etc. The processor 1010 may be coupled to other components via an address bus, a control bus, a data bus, etc. Further, the processor 1010 may be coupled to an expansion bus such as a peripheral component interconnect (PCI) bus.

[0121] The processor 1010 can output the input image data and the input control signal to Figure 1 A drive controller 200 is provided.

[0122] The memory device 1020 may store data used for the operation of the electronic apparatus 1000. For example, the memory device 1020 may include at least one nonvolatile memory device such as an erasable programmable read-only memory (EPROM) device, an electrically erasable programmable read-only memory (EEPROM) device, a flash memory device, a phase change random access memory (PRAM) device, a resistive random access memory (RRAM) device, a nano floating gate memory (NFGM) device, a polymer random access memory (PoRAM) device, a magnetic random access memory (MRAM) device, and a ferroelectric random access memory (FRAM) device, and / or at least one volatile memory device such as a dynamic random access memory (DRAM) device, a static random access memory (SRAM) device, and a mobile DRAM device.

[0123] The storage device 1030 may include a solid state drive (SSD) device, a hard disk drive (HDD) device, a CD-ROM device, etc. The I / O device 1040 may include input devices such as a keyboard, a keypad, a mouse device, a touch pad, and a touch screen, etc., and output devices such as a printer and a speaker, etc. In some embodiments, a display device 1060 may be included in the I / O device 1040. The power supply 1050 may provide power for the operation of the electronic device 1000. The display device 1060 may be coupled to other components via a bus or other communication link.

[0124] According to the display device and the method of driving the display device in the inventive concept, the manufacturing cost of the display device can be reduced and the frequency division driving method can be supported.

[0125] The foregoing is an illustration of the inventive concept and should not be construed as limiting thereof. Although some embodiments of the inventive concept have been described, it will be readily appreciated by those skilled in the art that many modifications are possible in the embodiments without substantially departing from the novel teachings and advantages of the inventive concept. Therefore, all such modifications are intended to be included within the scope of the inventive concept set forth in the claims.

Claims

1. A display device, comprising: A display panel comprising first direction data lines extending in a first direction, a plurality of second direction data lines extending in a second direction different from the first direction, gate lines extending in the second direction, and pixels connected to the first direction data lines and the gate lines; a gate driver configured to apply a gate signal to the gate line; and The data driver is configured to apply a data voltage to the second direction data line.

2. The display device according to claim 1, wherein: The display panel includes a first display area, a second display area disposed adjacent to the first display area in the first direction, and a third display area disposed adjacent to the second display area in the first direction, and The first display area, the second display area and the third display area are driven at independent frequencies.

3. The display device according to claim 2, wherein: The gate signal applied to the first display area, the gate signal applied to the second display area, and the gate signal applied to the third display area are independently applied.

4. The display device according to claim 1, wherein: The display panel comprises: a first first direction data line extending in the first direction; a first second direction data line, a second second direction data line and a third second direction data line connected to the first first direction data line; a second first direction data line extending in the first direction; a fourth second direction data line, a fifth second direction data line and a sixth second direction data line connected to the second first direction data line; A third first-direction data line extending in the first direction; and a seventh second direction data line, an eighth second direction data line and a ninth second direction data line connected to the third first direction data line, The first direction data lines include the first first direction data lines, the second first direction data lines and the third first direction data lines.

5. The display device according to claim 4, wherein: The first first direction data line includes a first inclined portion and a second inclined portion, and Wherein, the third first direction data line includes a third inclined portion.

6. The display device according to claim 1, wherein: The display panel comprises: 1-1 first direction data line extending in the first direction; A first second direction data line connected to the 1-1 first direction data line; A 1-2 first direction data line extending in the first direction and spaced apart from the 1-1 first direction data line; A second second direction data line and a third second direction data line connected to the 1-2 first direction data line; a second first direction data line extending in the first direction; a fourth second direction data line, a fifth second direction data line and a sixth second direction data line connected to the second first direction data line; a third first-direction data line extending in the first direction; A seventh second direction data line and an eighth second direction data line connected to the third first direction data line; A fourth first-direction data line extending in the first direction; and a ninth second direction data line connected to the fourth first direction data line, The first direction data lines include the 1-1 first direction data lines, the 1-2 first direction data lines, the second first direction data lines, the third first direction data lines and the fourth first direction data lines.

7. The display device according to claim 1, wherein: The gate driver extends along a first side of the display panel extending in the first direction, and Wherein, the data driver extends along the first side of the display panel.

8. The display device according to claim 7, wherein: The gate driver is adjacent to the first side of the display panel, and The data driver includes a plurality of source driving chips connected to the first side of the display panel.

9. The display device according to claim 1, wherein: The data driver includes a plurality of source driving chips connected to the display panel, and The display device further includes a plurality of source switches disposed between the source driving chip and the second direction data lines.

10. The display device according to claim 9, wherein: The source switch is integrated on the display panel.

11. The display device according to claim 9, wherein: The source switch is integrated into the source driver chip.

12. The display device according to claim 1, wherein: The data driver includes a first source group corresponding to a first display area of ​​the display panel and a second source group corresponding to a second display area of ​​the display panel, Wherein, the first source group includes a plurality of first source driver chips, and Wherein, the second source group includes a plurality of second source driver chips, The display device further includes a plurality of first source group switches disposed between the first source driver chip and the second direction data lines in the first display area, and a plurality of second source group switches disposed between the second source driver chip and the second direction data lines in the second display area.

13. The display device according to claim 12, wherein: In a first period, the first source group switch is turned on and the second source group switch is turned on, and In the second period, the first source group switch is turned on and the second source group switch is turned off.

14. The display device according to claim 13, wherein: In the first period, the data voltage is lower than the target voltage, Wherein, in the second period, the data voltage is equal to or greater than the target voltage, and For the same grayscale value, the first data voltage applied to the first source driver chip is the same as the second data voltage applied to the second source driver chip.

15. The display device according to claim 13, wherein: The first period is an overdrive period, Wherein, the second period is a normal driving period, and For the same grayscale value, a first data voltage applied to the first source driver chip is different from a second data voltage applied to the second source driver chip.

16. The display device according to claim 1, wherein: The display panel includes a first pixel and a second pixel arranged in a first pixel row and a third pixel and a fourth pixel arranged in a second pixel row, Wherein, the first pixel is connected to the first gate line and the 1-1 first direction data line, Wherein, the second pixel is connected to the first gate line and the 1-2 first direction data line, Wherein, the third pixel is connected to the first gate line and the 2-1 first direction data line, Wherein, the fourth pixel is connected to the first gate line and the 2-2 first direction data line, and The first direction data lines include the 1-1 first direction data lines, the 1-2 first direction data lines, the 2-1 first direction data lines and the 2-2 first direction data lines.

17. A method for driving a display device, the method comprising: Outputting a gate signal to a gate line of a display panel, the display panel comprising a first direction data line extending in a first direction, a plurality of second direction data lines extending in a second direction different from the first direction, and pixels connected to the first direction data lines and the gate lines, wherein the gate lines extend in the second direction; and The data voltage is output to the second direction data line.

18. The method according to claim 17, wherein: The display panel includes a first display area, a second display area disposed adjacent to the first display area in the first direction, and a third display area disposed adjacent to the second display area in the first direction, and The first display area, the second display area and the third display area are driven at independent frequencies.

19. The method according to claim 18, wherein: The gate signal applied to the first display area, the gate signal applied to the second display area, and the gate signal applied to the third display area are independently applied.

20. The method according to claim 17, wherein: The data driver includes a first source group corresponding to a first display area of ​​the display panel and a second source group corresponding to a second display area of ​​the display panel, Wherein, the first source group includes a plurality of first source driver chips, Wherein, the second source group includes a plurality of second source driver chips, In the first period, a plurality of first source group switches disposed between the first source driver chip and the second direction data line in the first display area are turned on, and a plurality of second source group switches disposed between the second source driver chip and the second direction data line in the second display area are turned on, and In the second period, the first source group switch is turned on and the second source group switch is turned off.

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