Display device and driving method thereof

Abstract

The invention discloses a display device and a driving method thereof. The display device comprises a display panel, a gate driving part, a data driving part, a first touch layer, a second touch layer and a touch driving part. The gate driving unit outputs a gate signal to the display panel. The data driving unit outputs a data voltage to the display panel. The first touch layer is disposed adjacent to the display panel and includes a plurality of first touch electrodes. The second touch layer is disposed adjacent to the display panel and includes a plurality of second touch electrodes. The touch driving unit outputs a touch driving signal to the first touch electrode. When a first gate pulse is applied to a first gate line group of the display panel, a first touch driving signal applied to a (1-1) th touch electrode corresponding to the first gate line group among the first touch electrodes has a discharge section.

Description

Technical Field

[0001] The present invention relates to a display device and a driving method of the display device, and more particularly to a display device and a driving method of the display device that can enable the gate pulse application interval of a gate signal and the discharge interval of a touch drive signal to overlap in corresponding areas to improve the display quality of a display panel. Background Art

[0002] Generally, a display device includes a display panel and a display panel driving unit. The display panel displays an image based on an input image and includes a plurality of gate lines, a plurality of data lines, and a plurality of pixels. The display panel driving unit includes a gate driving unit that provides gate signals to the plurality of gate lines, a data driving unit that provides data voltages to the plurality of data lines, and a driving control unit that controls the operations of the gate driving unit and the data driving unit.

[0003] The display device may further include a touch panel for identifying a touch of the touch component. A touch drive signal for operating the touch panel and a data voltage of the display panel may be coupled. The degree of coupling between the touch drive signal and the data voltage may be different depending on the position within the display panel due to the waveform of the touch drive signal. When the degree of coupling is different depending on the position within the display panel, there is a problem of identifying horizontal stripe defects or spots on the display panel.

[0004] In addition, when the capacitance between the touch electrode and the gate electrode of the driving switch element of the pixel is inconsistent with the capacitance between the touch electrode and the source electrode of the driving switch element of the pixel, a brightness difference may occur between pixels, due to which flicker may be recognized. Summary of the invention

[0005] The technical problem of the present invention focuses on such an aspect, and an object of the present invention is to provide a display device that can overlap a gate pulse application period of a gate signal and a discharge period of a touch drive signal in corresponding regions to improve the display quality of a display panel.

[0006] Another object of the present invention is to provide a driving method of the display device.

[0007] A display device according to an embodiment for achieving the purpose of the present invention includes a display panel, a gate driving unit, a data driving unit, a first touch layer, a second touch layer and a touch driving unit. The gate driving unit outputs a gate signal to the display panel. The data driving unit outputs a data voltage to the display panel. The first touch layer is arranged adjacent to the display panel and includes a plurality of first touch electrodes. The second touch layer is arranged adjacent to the display panel and includes a plurality of second touch electrodes. The touch driving unit outputs a touch driving signal to the first touch electrode. When a first gate pulse is applied to a first gate line group of the display panel, a first touch driving signal applied to a 1-1 touch electrode corresponding to the first gate line group in the first touch electrode has a discharge interval.

[0008] In one embodiment of the present invention, when a second gate pulse is applied to a second gate line group adjacent to the first gate line group of the display panel, a second touch drive signal applied to a 1-2 touch electrode corresponding to the second gate line group in the first touch electrode has a discharge interval.

[0009] In one embodiment of the present invention, the plurality of gate lines of the display panel may extend in a first direction, and the first touch electrodes may extend in the first direction. Gate pulses may be sequentially applied to the gate lines along a second direction, and the touch drive signals may be sequentially applied to the first touch electrodes along the second direction.

[0010] In an embodiment of the present invention, the plurality of data lines of the display panel may extend in the second direction, and the second touch electrodes may extend in the second direction.

[0011] In an embodiment of the present invention, the touch driving signal may periodically have a charging interval and a discharging interval.

[0012] In an embodiment of the present invention, the gate signal and the touch driving signal may be synchronized based on a vertical start signal.

[0013] In an embodiment of the present invention, the display device may further include: a drive control unit for controlling the gate drive unit and the data drive unit. The drive control unit may output the vertical start signal to the gate drive unit and the touch drive unit.

[0014] In one embodiment of the present invention, the first gate pulse may be applied to the first gate line group in the first scanning interval, the second gate pulse may be applied to the second gate line group adjacent to the first gate line group in the second scanning interval, the third gate pulse may be applied to the third gate line group adjacent to the second gate line group in the third scanning interval, and the fourth gate pulse may be applied to the fourth gate line group adjacent to the third gate line group in the fourth scanning interval. It may be that in the first scanning interval, the first touch driving signal applied to the 1-1 touch electrode corresponding to the first gate line group has a discharge interval, the second touch driving signal applied to the 1-2 touch electrode corresponding to the second gate line group has a charge interval, the third touch driving signal applied to the 1-3 touch electrode corresponding to the third gate line group has a discharge interval, and the fourth touch driving signal applied to the 1-4 touch electrode corresponding to the fourth gate line group has a charge interval. It may be that in the second scanning interval, the first touch driving signal has a charge interval, the second touch driving signal has a discharge interval, the third touch driving signal has a charge interval, and the fourth touch driving signal has a discharge interval. It may be that, in the third scanning interval, the first touch driving signal has a discharge interval, the second touch driving signal has a charge interval, the third touch driving signal has a discharge interval, and the fourth touch driving signal has a charge interval. It may be that, in the fourth scanning interval, the first touch driving signal has a charge interval, the second touch driving signal has a discharge interval, the third touch driving signal has a charge interval, and the fourth touch driving signal has a discharge interval.

[0015] In one embodiment of the present invention, the first gate pulse may be applied to the first gate line group in the first scanning interval, the second gate pulse may be applied to the second gate line group adjacent to the first gate line group in the second scanning interval, the third gate pulse may be applied to the third gate line group adjacent to the second gate line group in the third scanning interval, and the fourth gate pulse may be applied to the fourth gate line group adjacent to the third gate line group in the fourth scanning interval. It may be that in the first scanning interval, the first touch driving signal applied to the 1-1 touch electrode corresponding to the first gate line group has a discharge interval, the second touch driving signal applied to the 1-2 touch electrode corresponding to the second gate line group has a charge interval, the third touch driving signal applied to the 1-3 touch electrode corresponding to the third gate line group has a charge interval, and the fourth touch driving signal applied to the 1-4 touch electrode corresponding to the fourth gate line group has a discharge interval. It may be that in the second scanning interval, the first touch driving signal has a discharge interval, the second touch driving signal has a discharge interval, the third touch driving signal has a charge interval, and the fourth touch driving signal has a charge interval. It may be that, in the third scanning interval, the first touch driving signal has a charging interval, the second touch driving signal has a discharging interval, the third touch driving signal has a discharging interval, and the fourth touch driving signal has a charging interval. It may be that, in the fourth scanning interval, the first touch driving signal has a charging interval, the second touch driving signal has a charging interval, the third touch driving signal has a discharging interval, and the fourth touch driving signal has a discharging interval.

[0016] In one embodiment of the present invention, the first gate pulse may be applied to the first gate line group in the first scanning interval, the second gate pulse may be applied to the second gate line group adjacent to the first gate line group in the second scanning interval, the third gate pulse may be applied to the third gate line group adjacent to the second gate line group in the third scanning interval, and the fourth gate pulse may be applied to the fourth gate line group adjacent to the third gate line group in the fourth scanning interval. It may be that in the first scanning interval, the first touch driving signal applied to the 1-1 touch electrode corresponding to the first gate line group has a discharge interval, the second touch driving signal applied to the 1-2 touch electrode corresponding to the second gate line group has a discharge interval, the third touch driving signal applied to the 1-3 touch electrode corresponding to the third gate line group has a charge interval, and the fourth touch driving signal applied to the 1-4 touch electrode corresponding to the fourth gate line group has a charge interval. It may be that in the second scanning interval, the first touch driving signal has a charge interval, the second touch driving signal has a discharge interval, the third touch driving signal has a discharge interval, and the fourth touch driving signal has a charge interval. It may be that, in the third scanning interval, the first touch driving signal has a charging interval, the second touch driving signal has a charging interval, the third touch driving signal has a discharging interval, and the fourth touch driving signal has a discharging interval. It may be that, in the fourth scanning interval, the first touch driving signal has a discharging interval, the second touch driving signal has a charging interval, the third touch driving signal has a charging interval, and the fourth touch driving signal has a discharging interval.

[0017] In an embodiment of the present invention, the display panel may be arranged on the first touch layer, and the second touch layer may be arranged on the display panel. A touch event may occur when a touch component contacts the second touch layer.

[0018] A display device according to an embodiment for achieving the purpose of the present invention includes a display panel, a first touch layer, a second touch layer, and a touch drive unit. The display panel includes a driving switch element. The first touch layer is arranged adjacent to the display panel and includes a plurality of first touch electrodes. The second touch layer is arranged adjacent to the display panel and includes a plurality of second touch electrodes. The touch drive unit outputs a touch drive signal to the first touch electrode. A first ratio of the overall capacitance of the gate electrode of the driving switch element to the capacitance between the first touch electrode and the gate electrode is the same as a second ratio of the overall capacitance of the source electrode of the driving switch element to the capacitance between the first touch electrode and the source electrode.

[0019] In one embodiment of the present invention, the display device may further include: a gate driving unit that outputs a gate signal to the display panel; and a data driving unit that outputs a data voltage to the display panel. When a first gate pulse is applied to a first gate line group of the display panel, a first touch driving signal applied to a 1-1 touch electrode corresponding to the first gate line group of the first touch electrode may have a discharge interval.

[0020] In one embodiment of the present invention, when a second gate pulse is applied to a second gate line group adjacent to the first gate line group of the display panel, a second touch drive signal applied to a 1-2 touch electrode corresponding to the second gate line group in the first touch electrode has a discharge interval.

[0021] In one embodiment of the present invention, the plurality of gate lines of the display panel may extend in a first direction, and the first touch electrodes may extend in the first direction. Gate pulses may be sequentially applied to the gate lines along a second direction, and the touch drive signals may be sequentially applied to the first touch electrodes along the second direction.

[0022] In an embodiment of the present invention, the display panel may be arranged on the first touch layer, and the second touch layer may be arranged on the display panel. A touch event may occur when a touch component contacts the second touch layer.

[0023] A method for driving a display device according to an embodiment of the present invention includes: a step of outputting a gate signal to a display panel; a step of outputting a data voltage to the display panel; and a step of outputting a touch drive signal to a first touch electrode of a first touch layer arranged adjacent to the display panel. When a first gate pulse is applied to a first gate line group of the display panel, a first touch drive signal applied to a 1-1 touch electrode corresponding to the first gate line group in the first touch electrode has a discharge interval.

[0024] In one embodiment of the present invention, when a second gate pulse is applied to a second gate line group adjacent to the first gate line group of the display panel, a second touch drive signal applied to a 1-2 touch electrode corresponding to the second gate line group in the first touch electrode has a discharge interval.

[0025] In one embodiment of the present invention, the plurality of gate lines of the display panel may extend in a first direction, and the first touch electrodes may extend in the first direction. Gate pulses may be sequentially applied to the gate lines along a second direction, and the touch drive signals may be sequentially applied to the first touch electrodes along the second direction.

[0026] In an embodiment of the present invention, the gate signal and the touch driving signal may be synchronized based on a vertical start signal.

[0027] According to such a display device and a driving method of the display device, the gate pulse application interval of the gate signal and the discharge interval of the touch drive signal are overlapped in the corresponding areas, so that the horizontal line defects of the display panel or the spots of the display panel can be reduced. Therefore, the display quality of the display panel can be improved.

[0028] In addition, the ratio of the capacitance between the gate electrode and the first touch electrode of the overall capacitance of the gate electrode of the driving switch element for the pixel and the ratio of the capacitance between the source electrode and the first touch electrode of the overall capacitance of the source electrode of the driving switch element for the pixel are made consistent with each other, so that the flicker of the display panel can be reduced. Therefore, the display quality of the display panel can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a block diagram showing a display device according to an embodiment of the present invention.

[0030] Figure 2 It is shown Figure 1 A block diagram of a display panel, a display panel driving unit, a first touch layer, a second touch layer and a touch driving unit of a display device.

[0031] Figure 3 It is shown Figure 2 a first touch electrode of a first touch layer and Figure 2 FIG. 5 is a diagram of a second touch electrode of a second touch layer.

[0032] Figure 4 It is shown Figure 3 Figure 1-1 of the touch electrode.

[0033] Figure 5 It is shown Figure 3 Figure 2-1 of the touch electrode.

[0034] Figure 6 It is shown Figure 2 A cross-sectional view of a first touch layer, a display panel, and a second touch layer.

[0035] Figure 7 It is shown that the Figure 3 0047 is a timing diagram of a first touch driving signal for a 1-1th touch electrode.

[0036] Figure 8a It is shown that the Figure 2The gate signal of the gate line of the display panel and the gate signal applied to the Figure 3 1 is a timing diagram of an example of a touch driving signal for a first touch electrode.

[0037] Figure 8b It is shown that the Figure 2 The gate signal of the gate line of the display panel and the gate signal applied to the Figure 3 1 is a timing diagram of an example of a touch driving signal for a first touch electrode.

[0038] Figure 8c It is shown that the Figure 2 The gate signal of the gate line of the display panel and the gate signal applied to the Figure 3 1 is a timing diagram of an example of a touch driving signal for a first touch electrode.

[0039] Fig. 9 is a graph showing a charging rate of a data voltage according to a comparative example.

[0040] Fig.10 is a graph showing a charging rate of a data voltage according to the present embodiment.

[0041] Fig.11a It is shown Figure 2 The gate electrode, source electrode and Figure 3 A cross-sectional view of the relative positions of the first touch electrodes.

[0042] Fig.11b It is shown Figure 2 The gate electrode, source electrode and Figure 3 A cross-sectional view of the relative positions of the first touch electrodes.

[0043] Fig.11c It is shown Figure 2 The gate electrode, source electrode and Figure 3 A cross-sectional view of the relative positions of the first touch electrodes.

[0044] Fig.12 It is shown in the comparative example and the present embodiment that according to the Figure 3 A table showing a luminance deviation of an amplitude of a touch driving signal for a first touch electrode and a luminance deviation according to a phase difference of the touch driving signal.

[0045] Fig.13 is a block diagram showing an electronic device according to an embodiment of the present invention.

[0046] Fig.14 It is shown Fig.13 FIG. 1 is a diagram showing an example of an electronic device implemented as a smart phone.

[0047] (Explanation of Reference Numerals)

[0048] 10: First base layer 11: Second base layer

[0049] 100: display panel 110: display panel driving unit

[0050] 200: drive control unit 300: gate drive unit

[0051] 400: Gamma reference voltage generating unit 500: Data driving unit

[0052] 600: touch driving unit 610: first touch layer

[0053] 620: Second touch layer 1000: Electronic device

[0054] 1010: processor 1020: memory device

[0055] 1030: storage device 1040: input / output device

[0056] 1050: Power supply 1060: Display device

[0057] 2000: Touch components DETAILED DESCRIPTION

[0058] Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

[0059] Figure 1 is a block diagram showing a display device according to an embodiment of the present invention.

[0060] Reference Figure 1 The display device includes a display panel 100 and a display panel driving unit. The display panel driving unit drives the display panel 100. The display panel driving unit includes a driving control unit 200, a gate driving unit 300, a gamma reference voltage generating unit 400 and a data driving unit 500.

[0061] For example, the drive control unit 200 and the data drive unit 500 may be formed integrally. For example, the drive control unit 200, the gamma reference voltage generating unit 400 and the data drive unit 500 may be formed integrally. The drive module in which at least the drive control unit 200 and the data drive unit 500 are formed integrally may be named a timing controller embedded data driver (TED).

[0062] The display panel 100 includes a display portion AA for displaying an image and a peripheral portion PA disposed adjacent to the display portion AA.

[0063] The display panel 100 includes a plurality of gate lines GL, a plurality of data lines DL, and a plurality of pixels P electrically connected to each of the gate lines GL and the data lines DL. The gate lines GL may extend in a first direction D1, and the data lines DL may extend in a second direction D2 crossing the first direction D1.

[0064] The drive control unit 200 may receive input image data IMG and an input control signal CONT from an external device (e.g., an application processor). For example, the input image data IMG may include red image data, green image data, and blue image data. The input image data IMG may include white image data. The input image data IMG may include magenta image data, yellow image data, and cyan image data. The input control signal CONT may include a main clock signal and a data enable signal. The input control signal CONT may also include a vertical synchronization signal and a horizontal synchronization signal.

[0065] The driving control unit 200 generates a first control signal CONT1 , a second control signal CONT2 , a third control signal CONT3 , and a data signal DATA based on the input image data IMG and the input control signal CONT.

[0066] The driving control unit 200 generates the first control signal CONT1 for controlling the operation of the gate driving unit 300 based on the input control signal CONT and outputs the first control signal CONT1 to the gate driving unit 300. The first control signal CONT1 may include a vertical start signal and a gate clock signal.

[0067] The driving control unit 200 generates the second control signal CONT2 for controlling the operation of the data driving unit 500 based on the input control signal CONT and outputs the second control signal CONT2 to the data driving unit 500. The second control signal CONT2 may include a horizontal start signal and a load signal.

[0068] The driving control unit 200 generates a data signal DATA based on the input image data IMG and outputs the data signal DATA to the data driving unit 500 .

[0069] The driving control unit 200 generates a third control signal CONT3 for controlling the operation of the gamma reference voltage generator 400 based on the input control signal CONT, and outputs the third control signal CONT3 to the gamma reference voltage generator 400 .

[0070] The gate driving unit 300 generates a gate signal for driving the gate line GL in response to receiving the input of the first control signal CONT1 from the driving control unit 200. The gate driving unit 300 outputs the gate signal to the gate line GL. For example, the gate driving unit 300 may output the gate signal to the gate line GL in sequence. For example, the gate driving unit 300 may be installed on the peripheral portion PA of the display panel 100. For example, the gate driving unit 300 may be integrated on the peripheral portion PA of the display panel 100.

[0071] The gamma reference voltage generating part 400 generates a gamma reference voltage VGREF in response to receiving the input of the third control signal CONT3 from the driving control part 200. The gamma reference voltage generating part 400 provides the gamma reference voltage VGREF to the data driving part 500.

[0072] In an embodiment of the present invention, the gamma reference voltage generating unit 400 may be configured in the driving control unit 200 or in the data driving unit 500 .

[0073] The data driving unit 500 receives the second control signal CONT2 and the data signal DATA from the driving control unit 200, and receives the gamma reference voltage VGREF from the gamma reference voltage generating unit 400. The data driving unit 500 converts the data signal DATA into a data voltage in analog form using the gamma reference voltage VGREF. The data driving unit 500 outputs the data voltage to the data line DL.

[0074] Figure 2 It is shown Figure 1 1 is a block diagram of a display panel 100, a display panel driving unit 110, a first touch layer 610, a second touch layer 620, and a touch driving unit 600 of a display device. Figure 3 It is shown Figure 2 The first touch electrodes TE11, TE12, TE13, TE14, . . . , TE1N and Figure 2 The second touch electrodes TE21, TE22, TE23, TE24, . . . , TE2M of the second touch layer 620 and Figure 2 FIG. 1 is a diagram of gate line groups GLG1 , GLG2 , GLG3 , GLG4 , . . . , GLGN of a display panel 100 . Figure 4 It is shown Figure 3 FIG. 1-1 is a diagram of the touch electrode TE11. Figure 5 It is shown Figure 3 FIG. 2-1 is a diagram of the touch electrode TE21.

[0075] Reference Figures 1 to 5 The display device may include the display panel driving unit 110 , the touch driving unit 600 , the first touch layer 610 , the display panel 100 , and the second touch layer 620 .

[0076] In this embodiment, the display panel 100 may be disposed on the first touch layer 610. The second touch layer 620 may be disposed on the display panel 100. When the touch component 2000 contacts the second touch layer 620, a touch event may occur. When the touch component 2000 contacts the second touch layer 620, the touch component 2000 may be charged. In addition, when the touch component 2000 contacts the second touch layer 620, the touch position of the touch component 2000 may be sensed by the touch driving unit 600.

[0077] The touch member 2000 may be charged in response to the touch driving signal. The touch member 2000 may output a touch member output signal in response to the touch driving signal.

[0078] In one embodiment, the touch component 2000 may have a pen shape. The pen electrode may be configured at an end of the touch component 2000. For example, a portion of the pen electrode may be exposed to the outside of the touch component 2000, and the rest of the pen electrode may be configured inside the touch component 2000. For example, the touch component 2000 may be a stylus pen, an active pen, a touch pen, an electronic pen, etc.

[0079] The second touch layer 620 may receive the application of the touch component output signal from the touch component 2000. The second touch layer 620 may output touch component sensing information to the touch driving unit 600. For example, the touch component sensing information may include information about the position coordinates of the touch component 2000 located in the second touch layer 620. In one embodiment, in the interval of receiving the application of the touch component output signal, the touch driving signal may not be applied to the touch driving wiring. For example, in the interval of receiving the application of the touch component output signal, the voltage of the touch driving wiring may be a DC voltage of 0V.

[0080] The first touch layer 610 may receive the application of the touch driving signal from the touch driving unit 600. The first touch layer 610 may include the first touch electrodes TE11, TE12, ..., TE1N.

[0081] The plurality of gate lines GL of the display panel 100 may extend in the first direction D1, and the first touch electrodes TE11, TE12, ..., TE1N may extend in the first direction D1. The first touch electrodes TE11, TE12, ..., TE1N may be arranged in the second direction D2.

[0082] The touch driving signal may be applied to the first touch electrodes TE11, TE12, . . . , TE1N.

[0083] It may be that gate pulses are sequentially applied to the gate lines GL along the second direction D2 , and the touch driving signals are sequentially applied to the first touch electrodes TE11 , TE12 , . . . , TE1N along the second direction D2 .

[0084] On the contrary, the plurality of data lines DL of the display panel 100 may extend in the second direction D2, and the second touch electrodes TE21, TE22, TE23, TE24, ..., TE2M may extend in the second direction. The second touch electrodes TE21, TE22, TE23, TE24, ..., TE2M may be arranged in the first direction D1.

[0085] like Figure 4 As shown, the 1-1 touch electrode TE11 may have a mesh form. That is, the 1-1 touch electrode TE11 may have a plurality of first extension portions extending in the first direction D1 and a plurality of second extension portions extending in the second direction D2, and the plurality of first extension portions and the plurality of second extension portions are connected to each other at the intersection. Although not shown, the first touch electrodes TE11, TE12, ..., TE1N may each have a mesh form.

[0086] like Figure 5 As shown, the 2-1st touch electrode TE21 may have a mesh form. That is, the 2-1st touch electrode TE21 may have a plurality of first extension portions extending in the first direction D1 and a plurality of second extension portions extending in the second direction D2, and the plurality of first extension portions and the plurality of second extension portions are connected to each other at the intersection. Although not shown, the second touch electrodes TE21, TE22, TE23, TE24, ..., TE2M may each have a mesh form.

[0087] Figure 6 It is shown Figure 2 1 is a cross-sectional view of a first touch layer 610, a display panel 100, and a second touch layer 620.

[0088] Reference Figures 1 to 6The first touch layer 610 may include a first touch electrode TE1P, a first base layer 10, and a second base layer 11. The first touch electrode TE1P may be disposed on the first base layer 10. The second base layer 11 may be disposed on the first touch electrode TE1P. The second base layer 11 may be disposed on the first base layer 10. The display panel 100 may be disposed on the second base layer 11. The second touch layer 620 may be disposed on the display panel 100.

[0089] In this embodiment, the first substrate layer 10 and the second substrate layer 11 may include organic substances with excellent heat resistance and durability, such as polyimide, polyethylene naphthalate, polyethylene terephthalate (PET), polyarylate, polycarbonate, polyetherimide (PEI) or polyethersulfone.

[0090] In one embodiment, the display panel 100 may include a buffer layer BFR, first to third insulating layers IL1, IL2, IL3, an active pattern ACT, first to third conductive patterns CP1, CP2, CP3, a pixel defining layer PDL, a light emitting element LE, and an encapsulation layer ENC. The active pattern ACT and the first to third conductive patterns CP1, CP2, CP3 may form a transistor TR. The light emitting element LE may include a pixel electrode PE, a light emitting layer EL, and a common electrode CE.

[0091] The buffer layer BFR may be disposed on the second base layer 11. The buffer layer BFR may prevent impurities such as oxygen and moisture from diffusing onto the second base layer 11. The buffer layer BFR may include inorganic insulating materials such as silicon compounds and metal oxides.

[0092] The active pattern ACT may be disposed on the buffer layer BFR. In one embodiment, the active pattern ACT may include a silicon semiconductor material or an oxide semiconductor material.

[0093] In one embodiment, the first insulating layer IL1 may be disposed on the buffer layer BFR. The first insulating layer IL1 may cover the active pattern ACT. In another embodiment, the first insulating layer IL1 may also be disposed on the active pattern ACT in a pattern form so that a portion of the active pattern ACT is exposed. For example, the first insulating layer IL1 may also be disposed on the active pattern ACT in a pattern form so as to overlap with the first conductive pattern CP1. The first insulating layer IL1 may include an inorganic insulating material.

[0094] The first conductive pattern CP1 may be disposed on the first insulating layer IL1. In one embodiment, the first conductive pattern CP1 may include metal, alloy, conductive metal oxide, transparent conductive material, etc.

[0095] The second insulating layer IL2 may be disposed on the first insulating layer IL1. In one embodiment, the second insulating layer IL2 may cover the first conductive pattern CP1. The second insulating layer IL2 may include an inorganic insulating material.

[0096] The second conductive pattern CP2 and the third conductive pattern CP3 may be disposed on the second insulating layer IL2. The second conductive pattern CP2 and the third conductive pattern CP3 may be electrically connected to the active pattern ACT through a contact hole formed in the second insulating layer IL2. Each of the second conductive pattern CP2 and the third conductive pattern CP3 may include metal, alloy, conductive metal oxide, transparent conductive material, etc.

[0097] For example, the first conductive pattern CP1 may be a gate electrode (hereinafter referred to as “gate electrode CP1”) of a transistor TR (for example, a driving switch element of a pixel). For example, the second conductive pattern CP2 may be a source electrode (hereinafter referred to as “source electrode CP2”) of a transistor TR (for example, a driving switch element of a pixel). For example, the third conductive pattern CP3 may be a drain electrode of a transistor TR (for example, a driving switch element of a pixel).

[0098] The third insulating layer IL3 may be disposed on the second insulating layer IL2. The third insulating layer IL3 may cover the second conductive pattern CP2 and the third conductive pattern CP3. The third insulating layer IL3 may include an organic insulating material.

[0099] on the other hand, Figure 6The configuration, arrangement, and connection structure of the transistor TR and each of the plurality of insulating layers IL1 , IL2 , and IL3 are exemplary and may be modified in various ways. For example, the transistor TR may have a dual-gate structure further including a fourth conductive pattern.

[0100] The pixel electrode PE may be disposed on the third insulating layer IL3. The pixel electrode PE may be electrically connected to the transistor TR through a contact hole formed in the third insulating layer IL3. In one embodiment, the pixel electrode PE may include metal, alloy, conductive metal oxide, transparent conductive material, etc.

[0101] A pixel defining layer PDL may be disposed on the third insulating layer IL3 and the pixel electrode PE. The pixel defining layer PDL may include an organic insulating material. In one embodiment, the pixel defining layer PDL may further include a light shielding material. Examples of the light shielding material of the pixel defining layer PDL include black pigment, black dye, and the like.

[0102] The pixel defining layer PDL may cover an edge of the pixel electrode PE and expose a portion of the pixel electrode PE.

[0103] The light emitting element LE may include the pixel electrode PE, the light emitting layer EL, and the common electrode CE.

[0104] In one embodiment, the light-emitting layer EL may include a substance that emits light. For example, the light-emitting layer EL may include an organic light-emitting substance. In addition, in one embodiment, a hole injection layer, a hole transport layer, an electron transport layer, an electron injection layer and other functional layers may be additionally configured above and / or below the light-emitting layer EL. The common electrode CE may be configured on the light-emitting layer EL. The common electrode CE may include a conductive substance such as a metal, an alloy, a conductive metal nitride, a conductive metal oxide, a transparent conductive substance and the like. In one embodiment, the common electrode CE may extend continuously across a plurality of the pixels.

[0105] The encapsulation layer ENC may be configured on the light emitting element LE. The encapsulation layer ENC may protect the light emitting element LE from external moisture, heat, impact, etc. Although not shown, the encapsulation layer ENC may include a first inorganic encapsulation layer, an organic encapsulation layer configured on the first inorganic encapsulation layer, and a second inorganic encapsulation layer configured on the organic encapsulation layer.

[0106] For example, the second touch layer 620 may be disposed on the encapsulation layer ENC. In this embodiment, the second touch layer 620 may include second touch electrodes TE2Q and TE2Q+1. For example, the second touch electrodes TE2Q and TE2Q+1 may receive the application of the touch component output signal from the touch component 2000, and output the touch component sensing information to the touch driving unit 600. The second touch electrodes TE2Q and TE2Q+1 may sense the position coordinates of the touch component 2000, and output the position coordinates to the touch driving unit 600.

[0107] Figure 7 It is shown that the Figure 3 2 is a timing diagram of a first touch driving signal TD1 for a 1-1th touch electrode TE11.

[0108] Reference Figures 1 to 7 The touch driving signal may periodically have a charging interval and a discharging interval. The first touch driving signal TD1 may periodically have a charging interval DR1, DR3 and a discharging interval DR2, DR4.

[0109] The first touch drive signal TD1 may output a periodic waveform in the charging intervals DR1 and DR3. For example, the first touch drive signal TD1 may output a sine waveform in the charging intervals DR1 and DR3. The touch component 2000 may be charged by the sine waveform in the charging intervals DR1 and DR3.

[0110] The first touch driving signal TD1 may have a DC voltage in the discharge intervals DR2 and DR4. For example, the first touch driving signal TD1 may have a DC voltage of 0V in the discharge intervals DR2 and DR4. The touch driving unit 600 may sense the touch position of the touch component 2000 during the discharge intervals DR2 and DR4.

[0111] Figure 8a It is shown that the Figure 2 The gate signal of the gate line of the display panel and the gate signal applied to the Figure 3 1 is a timing diagram of an example of a touch driving signal for a first touch electrode. Figure 8b It is shown that the Figure 2 The gate signal of the gate line of the display panel and the gate signal applied to the Figure 3 1 is a timing diagram of an example of a touch driving signal for a first touch electrode. Figure 8c It is shown that the Figure 2 The gate signal of the gate line of the display panel and the gate signal applied to the Figure 3 1 is a timing diagram of an example of a touch driving signal for a first touch electrode.

[0112] Reference Figures 1 to 8c , the gate signal and the touch driving signal can be synchronized with each other.

[0113] For example, the gate signal and the touch driving signal may be synchronized with each other so that a gate pulse application interval of the gate signal and a discharge interval of the touch driving signal overlap in regions corresponding to each other.

[0114] For example, the gate signal and the touch driving signal may be synchronized with each other based on a vertical start signal. The driving control unit 200 may output the vertical start signal to the gate driving unit 300 and the touch driving unit 600 .

[0115] exist Figures 8a to 8c , the first to fourth gate lines to which the first to fourth gate signals GW1 to GW4 are applied are assumed to be the first gate line group, the fifth to eighth gate lines to which the fifth to eighth gate signals GW5 to GW8 are applied are assumed to be the second gate line group, the ninth to twelfth gate lines to which the ninth to twelfth gate signals GW9 to GW12 are applied are assumed to be the third gate line group, and the thirteenth to sixteenth gate lines to which the thirteenth to sixteenth gate signals GW13 to GW16 are applied are assumed to be the fourth gate line group. However, the present invention is not limited to the number of gate lines included in the gate line group. For example, the first gate line group, the second gate line group, the third gate line group, and the fourth gate line group may be Figure 3 GLG1, GLG2, GLG3 and GLG4.

[0116] In addition, Figures 8a to 8c In the embodiment, it is assumed that the 1-1 touch electrode corresponds to the first gate line group, the 1-2 touch electrode corresponds to the second gate line group, the 1-3 touch electrode corresponds to the third gate line group, and the 1-4 touch electrode corresponds to the fourth gate line group. It is assumed that the first touch driving signal TD1 is applied to the 1-1 touch electrode, the second touch driving signal TD2 is applied to the 1-2 touch electrode, the third touch driving signal TD3 is applied to the 1-3 touch electrode, and the fourth touch driving signal TD4 is applied to the 1-4 touch electrode. For example, the 1-1 touch electrode, the 1-2 touch electrode, the 1-3 touch electrode, and the 1-4 touch electrode may be Figure 3 The touch electrodes correspond to the gate line groups in a manner overlapping with the gate line groups in a plan view. Figure 3The 1-1st touch electrode TE11, the 1-2nd touch electrode TE12, the 1-3rd touch electrode TE13 and the 1-4th touch electrode TE14 may correspond to the first gate line group GLG1, the second gate line group GLG2, the third gate line group GLG3 and the fourth gate line group GLG4 in a manner of overlapping with the first gate line group GLG1, the second gate line group GLG2, the third gate line group GLG3 and the fourth gate line group GLG4 in a plan view.

[0117] observe Figures 8a to 8c When a first gate pulse (ST1) is applied to the first gate line group (e.g., the first to fourth gate lines) of the display panel 100, the first touch drive signal TD1 applied to the 1-1 touch electrode corresponding to the first gate line group (e.g., the first to fourth gate lines) in the first touch electrode may have a discharge interval.

[0118] In addition, when a second gate pulse (ST2) is applied to the second gate line group (e.g., the fifth to the eighth gate lines) of the display panel 100 that is adjacent to the first gate line group (e.g., the first to the fourth gate lines), the second touch drive signal TD2 applied to the 1-2 touch electrode corresponding to the second gate line group (e.g., the fifth to the eighth gate lines) in the first touch electrode may have a discharge interval.

[0119] In addition, when a third gate pulse (ST3) is applied to the third gate line group (e.g., the ninth to the twelfth gate lines) of the display panel 100 that is adjacent to the second gate line group (e.g., the fifth to the eighth gate lines), the third touch drive signal TD3 applied to the 1st to 3rd touch electrodes corresponding to the third gate line group (e.g., the ninth to the twelfth gate lines) in the first touch electrode may have a discharge interval.

[0120] In addition, when a fourth gate pulse (ST4) is applied to the fourth gate line group (e.g., the thirteenth to sixteenth gate lines) of the display panel 100 that is adjacent to the third gate line group (e.g., the ninth to twelfth gate lines), the fourth touch drive signal TD4 applied to the 1st to 4th touch electrodes corresponding to the fourth gate line group (e.g., the thirteenth to sixteenth gate lines) in the first touch electrode may have a discharge interval.

[0121] observe Figure 8a, the length of a discharge interval of the Xth touch drive signal may be consistent with the length of the Xth scanning interval of the Xth gate line group. (Here, X is a natural number) That is, the length of a discharge interval of the first touch drive signal TD1 may be consistent with the length of the first scanning interval ST1 of the first gate line group. That is, the length of a discharge interval of the second touch drive signal TD2 may be consistent with the length of the second scanning interval ST2 of the second gate line group.

[0122] exist Figure 8a In the embodiment, the first gate pulse may be applied to the first gate line group in the first scanning interval ST1, the second gate pulse may be applied to the second gate line group adjacent to the first gate line group in the second scanning interval ST2, the third gate pulse may be applied to the third gate line group adjacent to the second gate line group in the third scanning interval ST3, and the fourth gate pulse may be applied to the fourth gate line group adjacent to the third gate line group in the fourth scanning interval ST4.

[0123] It can be, in Figure 8a In the first scanning interval ST1, the first touch drive signal TD1 applied to the 1-1 touch electrode corresponding to the first gate line group has a discharge interval, the second touch drive signal TD2 applied to the 1-2 touch electrode corresponding to the second gate line group has a charge interval, the third touch drive signal TD3 applied to the 1-3 touch electrodes corresponding to the third gate line group has a discharge interval, and the fourth touch drive signal TD4 applied to the 1-4 touch electrodes corresponding to the fourth gate line group has a charge interval.

[0124] It can be, in Figure 8a In the second scanning interval ST2, the first touch driving signal TD1 has a charging interval, the second touch driving signal TD2 has a discharging interval, the third touch driving signal TD3 has a charging interval, and the fourth touch driving signal TD4 has a discharging interval.

[0125] It can be, in Figure 8a In the third scanning interval ST3, the first touch driving signal TD1 has a discharge interval, the second touch driving signal TD2 has a charge interval, the third touch driving signal TD3 has a discharge interval, and the fourth touch driving signal TD4 has a charge interval.

[0126] exist Figure 8aThe fourth scanning interval ST4 may be that the first touch drive signal TD1 has a charging interval, the second touch drive signal TD2 has a discharging interval, the third touch drive signal TD3 has a charging interval, and the fourth touch drive signal TD4 has a discharging interval.

[0127] observe Figure 8b , the discharge interval of the Xth touch driving signal may correspond to the Xth scanning interval of the Xth gate line group and the X+1th scanning interval of the X+1th gate line group. (Here, X is a natural number) That is, the discharge interval of the first touch driving signal TD1 may correspond to the first scanning interval ST1 of the first gate line group and the second scanning interval ST2 of the second gate line group. That is, the discharge interval of the second touch driving signal TD2 may correspond to the second scanning interval ST2 of the second gate line group and the third scanning interval ST3 of the third gate line group.

[0128] exist Figure 8b In the embodiment, the first gate pulse may be applied to the first gate line group in the first scanning interval ST1, the second gate pulse may be applied to the second gate line group adjacent to the first gate line group in the second scanning interval ST2, the third gate pulse may be applied to the third gate line group adjacent to the second gate line group in the third scanning interval ST3, and the fourth gate pulse may be applied to the fourth gate line group adjacent to the third gate line group in the fourth scanning interval ST4.

[0129] It can be, in Figure 8b In the first scanning interval ST1, the first touch drive signal TD1 applied to the 1-1 touch electrode corresponding to the first gate line group has a discharge interval, the second touch drive signal TD2 applied to the 1-2 touch electrode corresponding to the second gate line group has a charge interval, the third touch drive signal TD3 applied to the 1-3 touch electrodes corresponding to the third gate line group has a charge interval, and the fourth touch drive signal TD4 applied to the 1-4 touch electrodes corresponding to the fourth gate line group has a discharge interval.

[0130] It can be, in Figure 8b In the second scanning interval ST2, the first touch driving signal TD1 has a discharge interval, the second touch driving signal TD2 has a discharge interval, the third touch driving signal TD3 has a charge interval, and the fourth touch driving signal TD4 has a charge interval.

[0131] It can be, in Figure 8bIn the third scanning interval ST3, the first touch driving signal TD1 has a charging interval, the second touch driving signal TD2 has a discharging interval, the third touch driving signal TD3 has a discharging interval, and the fourth touch driving signal TD4 has a charging interval.

[0132] It can be, in Figure 8b In the fourth scanning interval ST4, the first touch driving signal TD1 has a charging interval, the second touch driving signal TD2 has a charging interval, the third touch driving signal TD3 has a discharging interval, and the fourth touch driving signal TD4 has a discharging interval.

[0133] observe Figure 8c , the discharge interval of the X-th touch driving signal may correspond to the X-1th scanning interval of the X-1th gate line group and the Xth scanning interval of the X-th gate line group. (Here, X is a natural number greater than 1) That is, the discharge interval of the second touch driving signal TD2 may correspond to the first scanning interval ST1 of the first gate line group and the second scanning interval ST2 of the second gate line group. That is, the discharge interval of the third touch driving signal TD3 may correspond to the second scanning interval ST2 of the second gate line group and the third scanning interval ST3 of the third gate line group.

[0134] exist Figure 8c In the embodiment, the first gate pulse may be applied to the first gate line group in the first scanning interval ST1, the second gate pulse may be applied to the second gate line group adjacent to the first gate line group in the second scanning interval ST2, the third gate pulse may be applied to the third gate line group adjacent to the second gate line group in the third scanning interval ST3, and the fourth gate pulse may be applied to the fourth gate line group adjacent to the third gate line group in the fourth scanning interval ST4.

[0135] It can be, in Figure 8c In the first scanning interval ST1, the first touch drive signal TD1 applied to the 1-1 touch electrode corresponding to the first gate line group has a discharge interval, the second touch drive signal TD2 applied to the 1-2 touch electrode corresponding to the second gate line group has a discharge interval, the third touch drive signal TD3 applied to the 1-3 touch electrodes corresponding to the third gate line group has a charging interval, and the fourth touch drive signal TD4 applied to the 1-4 touch electrodes corresponding to the fourth gate line group has a charging interval.

[0136] It can be, in Figure 8cIn the second scanning interval ST2, the first touch driving signal TD1 has a charging interval, the second touch driving signal TD2 has a discharging interval, the third touch driving signal TD3 has a discharging interval, and the fourth touch driving signal TD4 has a charging interval.

[0137] It can be, in Figure 8c In the third scanning interval ST3, the first touch driving signal TD1 has a charging interval, the second touch driving signal TD2 has a charging interval, the third touch driving signal TD3 has a discharging interval, and the fourth touch driving signal TD4 has a discharging interval.

[0138] It can be, in Figure 8c In the fourth scanning interval ST4, the first touch driving signal TD1 has a discharging interval, the second touch driving signal TD2 has a charging interval, the third touch driving signal TD3 has a charging interval, and the fourth touch driving signal TD4 has a discharging interval.

[0139] Fig. 9 is a graph showing a charging rate of a data voltage according to a comparative example. Fig.10 is a graph showing a charging rate of a data voltage according to the present embodiment.

[0140] observe Fig. 9 In an existing display device, the touch drive signal and the data voltage may be coupled. In an existing display device, a writing interval of the data voltage (a scanning interval of the gate signal) may overlap with a charging interval of the touch drive signal. Therefore, in an existing display device, the degree of coupling between the touch drive signal and the data voltage may be different depending on the position within the display panel 100 due to the waveform of the touch drive signal.

[0141] exist Fig. 9 Wherein C1 represents the charging rate of the data voltage charged to the first pixel, C2 represents the charging rate of the data voltage charged to the second pixel, and C3 represents the charging rate of the data voltage charged to the third pixel.

[0142] The charging rates of the first pixel, the second pixel, and the third pixel at the end time point of the writing interval of the data voltage may be different from each other according to the waveform of the touch driving signal.

[0143] When the coupling degree differs depending on the position within the display panel 100 , there is a problem of recognizing horizontal stripe defects or spots in the display panel 100 .

[0144] observe Fig.10In the display device of this embodiment, the writing interval of the data voltage (the scanning interval of the gate signal) overlaps with the discharge interval of the touch drive signal, so the coupling degree between the touch drive signal and the data voltage does not change due to the waveform of the touch drive signal (the touch drive signal maintains a certain voltage in the discharge interval). Therefore, the coupling degree does not vary according to the position in the display panel 100, so horizontal stripe defects or spots can be reduced or prevented in the display panel 100.

[0145] Fig.11a It is shown Figure 2 The gate electrode, the source electrode and the Figure 3 A cross-sectional view showing the relative positions of the first touch electrodes TE1P. Fig.11b It is shown Figure 2 The gate electrode, the source electrode and the Figure 3 A cross-sectional view showing the relative positions of the first touch electrodes TE1P. Fig.11c It is shown Figure 2 The gate electrode, the source electrode and the Figure 3 A cross-sectional view showing the relative positions of the first touch electrodes TE1P.

[0146] Fig.11a Indicates that the first touch electrode TE1P has the first position, Fig.11b Indicates that the first touch electrode TE1P has the second position, Fig.11c It represents the case where the first touch electrode TE1P has the third position.

[0147] exist Figures 11a to 11c In the embodiment, if the position of the first touch electrode TE1P changes, the relative positions of the gate electrode CP1, the source electrode CP2 and the first touch electrode TE1P of the driving switch element TR of the display panel 100 may change. Thus, the capacitance between the first touch electrode TE1P and the gate electrode CP1 and the capacitance between the first touch electrode TE1P and the source electrode CP2 may change.

[0148] When the capacitance between the first touch electrode TE1P and the gate electrode CP1 of the pixel driving switch element TR is inconsistent with the capacitance between the first touch electrode TE1P and the source electrode CP2 of the pixel driving switch element TR, a brightness difference may occur between pixels, which may cause flickering to be recognized.

[0149] In this embodiment, the first ratio of the overall capacitance of the gate electrode CP1 of the driving switching element TR to the capacitance between the first touch electrode TE1P and the gate electrode CP1 is the same as the second ratio of the overall capacitance of the source electrode CP2 of the driving switching element TR to the capacitance between the first touch electrode TE1P and the source electrode CP2.

[0150] If the first ratio of the overall capacitance of the gate electrode CP1 of the driving switching element TR to the capacitance between the first touch electrode TE1P and the gate electrode CP1 is the same as the second ratio of the overall capacitance of the source electrode CP2 of the driving switching element TR to the capacitance between the first touch electrode TE1P and the source electrode CP2, the gate-source voltage VSG of the driving switching element TR can be maintained to a certain extent even when the voltage applied to the first touch electrode TE1P is variable. Thus, flickering of the display panel 100 can be reduced or prevented.

[0151] Fig.12 It is shown in the comparative example and the present embodiment that according to the Figure 3 A table showing a luminance deviation of an amplitude of a touch driving signal for a first touch electrode and a luminance deviation according to a phase difference of the touch driving signal.

[0152] Reference Figures 1 to 12 In the display device of this embodiment, the writing interval of the data voltage (the scanning interval of the gate signal) overlaps with the discharge interval of the touch drive signal, so the coupling degree between the touch drive signal and the data voltage does not change due to the waveform of the touch drive signal. Therefore, the brightness deviation of the display panel 100 caused by the phase difference of the touch drive signal can be reduced.

[0153] For example, in the comparative example, the brightness deviation of the display panel 100 caused by the phase difference of the touch driving signal may be 28.1%. In the present embodiment, the brightness deviation of the display panel 100 caused by the phase difference of the touch driving signal may be 0%.

[0154] In addition, in the display device of the present embodiment, the first ratio of the overall capacitance of the gate electrode CP1 of the driving switch element TR to the capacitance between the first touch electrode TE1P and the gate electrode CP1 is the same as the second ratio of the overall capacitance of the source electrode CP2 of the driving switch element TR to the capacitance between the first touch electrode TE1P and the source electrode CP2. Therefore, the brightness deviation of the display panel 100 caused by the amplitude of the touch driving signal can be reduced.

[0155] For example, in the comparative example, the brightness deviation of the display panel 100 caused by the amplitude of the touch driving signal may be 2.7%, and in the present embodiment, the brightness deviation of the display panel 100 caused by the amplitude of the touch driving signal may be 1.8%.

[0156] For example, in the comparative example, the sum of the brightness deviation of the display panel 100 caused by the phase difference of the touch drive signal and the brightness deviation of the display panel 100 caused by the amplitude may be 30.8%. In the present embodiment, the sum of the brightness deviation of the display panel 100 caused by the phase difference of the touch drive signal and the brightness deviation of the display panel 100 caused by the amplitude may be 1.8%.

[0157] According to this embodiment, the gate pulse application interval of the gate signal and the discharge interval of the touch driving signal overlap in the corresponding regions, thereby reducing the horizontal stripe defects of the display panel 100 or the spots of the display panel 100. Therefore, the display quality of the display panel 100 can be improved.

[0158] In addition, the ratio of the capacitance between the gate electrode CP1 and the first touch electrode TE1P related to the overall capacitance of the gate electrode CP1 of the pixel driving switch element TR and the ratio of the capacitance between the source electrode CP2 and the first touch electrode TE1P related to the overall capacitance of the source electrode CP2 of the pixel driving switch element TR are made consistent with each other, thereby reducing the flicker of the display panel 100. Therefore, the display quality of the display panel 100 can be improved.

[0159] Fig.13 is a block diagram showing an electronic device according to an embodiment of the present invention. Fig.14 It is shown Fig.13 FIG. 1 is a diagram showing an example of an electronic device implemented as a smart phone.

[0160] Reference Fig.13 as well as Fig.14 , the electronic device 1000 may include a processor 1010, a memory device 1020, a storage device 1030, an input / output device 1040, a power supply 1050, and a display device 1060. In this case, the display device 1060 may be Figure 1 In addition, the electronic device 1000 may further include a variety of ports that can communicate with a graphics card, a sound card, a memory card, a USB device, etc. or can communicate with other systems.

[0161] According to one embodiment, Fig.14As shown, the electronic device 1000 can be implemented as a smart phone. However, this is exemplary, and the electronic device 1000 is not limited thereto. For example, the electronic device 1000 can be implemented as a mobile phone, a video phone, a smart tablet, a smart watch, a tablet PC, a car navigation system, a computer monitor, a notebook computer, a head-mounted display device, etc.

[0162] The processor 1010 may perform a specific calculation or task. According to an embodiment, the processor 1010 may be a microprocessor, a central processing unit, an application processor, etc. The processor 1010 may be connected to other components via an address bus, a control bus, and a data bus, etc. According to an embodiment, the processor 1010 may also be connected to an expansion bus such as a Peripheral Component Interconnect (PCI) bus.

[0163] The processor 1010 may output the input image data IMG and the input control signal CONT to Figure 1 The driving control unit 200.

[0164] The memory device 1020 may store data required for the operation of the electronic device 1000 . For example, the memory device 1020 may include an Erasable Programmable Read-Only Memory (EPROM) device, an Electrically Erasable Programmable Read-Only Memory (EEPROM) device, a flash memory device, a Phase Change Random Access Memory (PRAM) device, a Resistance Random Access Memory (RRAM) device, a Nano Floating Gate Memory (NFGM) device, a Polymer Random Access Memory (PoRAM) device, a Magnetic Random Access Memory (MRAM), a Ferroelectric Random Access Memory (FRAM) device, and / or a non-volatile memory device such as a Dynamic Random Access Memory (DRAM) device, a Static Random Access Memory (SRAM) device. Memory; SRAM) devices, mobile DRAM devices and other volatile memory devices.

[0165] The storage device 1030 may include a solid state drive (SSD), a hard disk drive (HDD), a CD-ROM, etc. The input-output device 1040 may include input components such as a keyboard, a numeric keypad, a touch pad, a touch screen, a mouse, and output components such as a speaker and a printer. According to an embodiment, the display device 1060 may also be included in the input-output device 1040. The power supply 1050 may supply the power required for the operation of the electronic device 1000. The display device 1060 may be connected to other components through the bus or other communication links.

[0166] According to the display device and the driving method of the display device according to the present invention described above, the display quality of the display panel can be improved.

[0167] The above description is made with reference to the embodiments, but those skilled in the art will appreciate that various modifications and changes may be made to the present invention without departing from the concept and scope of the present invention as described in the appended claims.

Claims

1. A display device, characterized in that: include: Display panel; A gate driving unit, outputting a gate signal to the display panel; A data driving unit, outputting a data voltage to the display panel; A first touch layer, arranged adjacent to the display panel and comprising a plurality of first touch electrodes; A second touch layer, arranged adjacent to the display panel and comprising a plurality of second touch electrodes; as well as a touch driving unit, outputting a touch driving signal to the first touch electrode, When a first gate pulse is applied to a first gate line group of the display panel, a first touch driving signal applied to a 1-1 touch electrode of the first touch electrode corresponding to the first gate line group has a discharge interval.

2. The display device according to claim 1, characterized in that When a second gate pulse is applied to a second gate line group of the display panel adjacent to the first gate line group, a second touch driving signal applied to a 1-2 touch electrode of the first touch electrode corresponding to the second gate line group has a discharge interval.

3. The display device according to claim 1, characterized in that A plurality of gate lines of the display panel extend in a first direction, and the first touch electrodes extend in the first direction. Gate pulses are sequentially applied to the gate lines along the second direction, and the touch drive signals are sequentially applied to the first touch electrodes along the second direction.

4. The display device according to claim 3, characterized in that A plurality of data lines of the display panel extend in the second direction, and the second touch electrodes extend in the second direction.

5. The display device according to claim 1, characterized in that The touch driving signal periodically has a charging interval and a discharging interval.

6. The display device according to claim 1, characterized in that: The gate signal and the touch driving signal are synchronized based on a vertical start signal.

7. The display device according to claim 6, characterized in that: The display device further includes: A drive control unit controls the gate drive unit and the data drive unit, The driving control unit outputs the vertical start signal to the gate driving unit and the touch driving unit.

8. The display device according to claim 1, characterized in that: In a first scanning interval, the first gate pulse is applied to the first gate line group, in a second scanning interval, the second gate pulse is applied to a second gate line group adjacent to the first gate line group, in a third scanning interval, the third gate pulse is applied to a third gate line group adjacent to the second gate line group, and in a fourth scanning interval, the fourth gate pulse is applied to a fourth gate line group adjacent to the third gate line group. In the first scanning interval, the first touch driving signal applied to the 1-1 touch electrodes corresponding to the first gate line group has a discharge interval, the second touch driving signal applied to the 1-2 touch electrodes corresponding to the second gate line group has a charge interval, the third touch driving signal applied to the 1-3 touch electrodes corresponding to the third gate line group has a discharge interval, and the fourth touch driving signal applied to the 1-4 touch electrodes corresponding to the fourth gate line group has a charge interval, In the second scanning interval, the first touch driving signal has a charging interval, the second touch driving signal has a discharging interval, the third touch driving signal has a charging interval, and the fourth touch driving signal has a discharging interval. In the third scanning interval, the first touch driving signal has a discharge interval, the second touch driving signal has a charge interval, the third touch driving signal has a discharge interval, and the fourth touch driving signal has a charge interval. In the fourth scanning interval, the first touch driving signal has a charging interval, the second touch driving signal has a discharging interval, the third touch driving signal has a charging interval, and the fourth touch driving signal has a discharging interval.

9. The display device according to claim 1, characterized in that: In a first scanning interval, the first gate pulse is applied to the first gate line group, in a second scanning interval, the second gate pulse is applied to a second gate line group adjacent to the first gate line group, in a third scanning interval, the third gate pulse is applied to a third gate line group adjacent to the second gate line group, and in a fourth scanning interval, the fourth gate pulse is applied to a fourth gate line group adjacent to the third gate line group. In the first scanning interval, the first touch driving signal applied to the 1-1 touch electrodes corresponding to the first gate line group has a discharge interval, the second touch driving signal applied to the 1-2 touch electrodes corresponding to the second gate line group has a charge interval, the third touch driving signal applied to the 1-3 touch electrodes corresponding to the third gate line group has a charge interval, and the fourth touch driving signal applied to the 1-4 touch electrodes corresponding to the fourth gate line group has a discharge interval, In the second scanning interval, the first touch driving signal has a discharge interval, the second touch driving signal has a discharge interval, the third touch driving signal has a charge interval, and the fourth touch driving signal has a charge interval. In the third scanning interval, the first touch driving signal has a charging interval, the second touch driving signal has a discharging interval, the third touch driving signal has a discharging interval, and the fourth touch driving signal has a charging interval. In the fourth scanning interval, the first touch driving signal has a charging interval, the second touch driving signal has a charging interval, the third touch driving signal has a discharging interval, and the fourth touch driving signal has a discharging interval.

10. The display device according to claim 1, characterized in that: In a first scanning interval, the first gate pulse is applied to the first gate line group, in a second scanning interval, the second gate pulse is applied to a second gate line group adjacent to the first gate line group, in a third scanning interval, the third gate pulse is applied to a third gate line group adjacent to the second gate line group, and in a fourth scanning interval, the fourth gate pulse is applied to a fourth gate line group adjacent to the third gate line group. In the first scanning interval, the first touch driving signal applied to the 1-1 touch electrodes corresponding to the first gate line group has a discharge interval, the second touch driving signal applied to the 1-2 touch electrodes corresponding to the second gate line group has a discharge interval, the third touch driving signal applied to the 1-3 touch electrodes corresponding to the third gate line group has a charge interval, and the fourth touch driving signal applied to the 1-4 touch electrodes corresponding to the fourth gate line group has a charge interval, In the second scanning interval, the first touch driving signal has a charging interval, the second touch driving signal has a discharging interval, the third touch driving signal has a discharging interval, and the fourth touch driving signal has a charging interval. In the third scanning interval, the first touch driving signal has a charging interval, the second touch driving signal has a charging interval, the third touch driving signal has a discharging interval, and the fourth touch driving signal has a discharging interval. In the fourth scanning interval, the first touch driving signal has a discharge interval, the second touch driving signal has a charge interval, the third touch driving signal has a charge interval, and the fourth touch driving signal has a discharge interval.

11. The display device according to claim 1, characterized in that: The display panel is arranged on the first touch layer, and the second touch layer is arranged on the display panel. When the touch component contacts the second touch layer, a touch event occurs.

12. A display device, characterized in that: include: A display panel including a driving switch element; A first touch layer, arranged adjacent to the display panel and comprising a plurality of first touch electrodes; A second touch layer, arranged adjacent to the display panel and comprising a plurality of second touch electrodes; as well as a touch driving unit, outputting a touch driving signal to the first touch electrode, A first ratio of the overall capacitance of the gate electrode of the driving switch element to the capacitance between the first touch electrode and the gate electrode is the same as a second ratio of the overall capacitance of the source electrode of the driving switch element to the capacitance between the first touch electrode and the source electrode.

13. The display device according to claim 12, characterized in that: The display device further includes: a gate driving unit, outputting a gate signal to the display panel; and The data driving unit outputs the data voltage to the display panel. When a first gate pulse is applied to a first gate line group of the display panel, a first touch driving signal applied to a 1-1 touch electrode of the first touch electrode corresponding to the first gate line group has a discharge interval.

14. The display device according to claim 13, characterized in that: When a second gate pulse is applied to a second gate line group of the display panel adjacent to the first gate line group, a second touch driving signal applied to a 1-2 touch electrode of the first touch electrode corresponding to the second gate line group has a discharge interval.

15. The display device according to claim 12, characterized in that: A plurality of gate lines of the display panel extend in a first direction, and the first touch electrodes extend in the first direction. Gate pulses are sequentially applied to the gate lines along the second direction, and the touch drive signals are sequentially applied to the first touch electrodes along the second direction.

16. The display device according to claim 12, characterized in that: The display panel is arranged on the first touch layer, and the second touch layer is arranged on the display panel. When the touch component contacts the second touch layer, a touch event occurs.

17. A method for driving a display device, characterized in that: include: The step of outputting a gate signal to a display panel; The step of outputting a data voltage to the display panel; as well as The step of outputting a touch driving signal to a first touch electrode of a first touch layer arranged adjacent to the display panel, When a first gate pulse is applied to a first gate line group of the display panel, a first touch driving signal applied to a 1-1 touch electrode of the first touch electrode corresponding to the first gate line group has a discharge interval.

18. The method for driving a display device according to claim 17, wherein: When a second gate pulse is applied to a second gate line group of the display panel adjacent to the first gate line group, a second touch driving signal applied to a 1-2 touch electrode of the first touch electrode corresponding to the second gate line group has a discharge interval.

19. The method for driving a display device according to claim 17, wherein: A plurality of gate lines of the display panel extend in a first direction, and the first touch electrodes extend in the first direction. Gate pulses are sequentially applied to the gate lines along the second direction, and the touch drive signals are sequentially applied to the first touch electrodes along the second direction.

20. The method for driving a display device according to claim 17, wherein: The gate signal and the touch driving signal are synchronized based on a vertical start signal.

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