KR102601644B1 - Display device and driving method using the same - Google Patents

Abstract

According to this embodiment, an image is displayed by pixels arranged corresponding to the area where a plurality of gate lines and a plurality of data lines intersect, and the first image is displayed in response to the first driving frequency in the power consumption reduction mode. A display panel divided into a first display area and a second display area that operates in response to a second driving frequency in a power consumption reduction mode and displays a second image, detects a touch on the display panel, and provides touch information about the touch coordinates. A display device including a touch sensor that calculates , and a control unit that controls the second display area to be driven at a first driving frequency upon receiving touch information from the touch sensor, and a method of driving the same.
According to the present embodiments, a display device capable of reducing power consumption and a method of driving the same can be provided.

Description

Display device and its driving method {DISPLAY DEVICE AND DRIVING METHOD USING THE SAME}

These embodiments relate to a display device and a method of driving the same.

As the information society develops, the demand for display devices for displaying images is increasing in various forms, including liquid crystal display devices (LCDs), plasma display devices, and organic light emitting display devices ( Various types of display devices such as OLED (Organic Light Emitting Display Device) are being used.

Among the above display devices, organic light emitting display devices employing organic light emitting diodes, which are self-luminous devices, are excellent in color gamut, viewing angle, response characteristics, etc. In addition, organic light emitting display devices are thin, light, and consume low power, so they are widely used in mobile devices such as smartphones and tablet PCs.

Since mobile devices are supplied with power using a battery, the usage time can be determined by the capacity of the battery. However, as mobile devices are being developed to be thin and light for convenient use, there is a problem in that the battery capacity cannot be increased and the usage time is shortened. In particular, smartphones and tablet PCs contain various sensors and touch panels to perform various functions, so there is a need to reduce power consumption and increase usage time.

The purpose of the present embodiments is to provide a display device and a method of driving the same that can reduce power consumption.

In one aspect, the present embodiments display an image by pixels disposed corresponding to an area where a plurality of gate lines and a plurality of data lines intersect, and display a first image corresponding to the first driving frequency in the power consumption reduction mode. A display panel divided into a first display area that displays and a second display area that operates in response to the second driving frequency in the power consumption reduction mode and displays a second image, detects a touch on the display panel, and touches the touch panel. A display device is provided that includes a touch sensor that calculates touch information about coordinates, and a control unit that controls the second display area to be driven at the first driving frequency when the touch information is received from the touch sensor.

In another aspect, a device that displays an image by pixels arranged corresponding to an area where a plurality of gate lines and a plurality of data lines intersect, and displays the first image corresponding to the first driving frequency in the power consumption reduction mode. A display panel divided into a first display area and a second display area that operates in response to a second driving frequency in a power consumption reduction mode and displays a second image, a first touch area and a second display area corresponding to the first display area. A touch is detected from a second touch area corresponding to the display area, where the first touch area operates in response to the first driving frequency, and the second touch area operates in response to the second driving frequency. When touch information corresponding to the first touch area is received, the touch sensor operates at the second driving frequency in response to the first driving frequency, and when touch information corresponding to the second touch area is received from the touch sensor, the second display area is operated. The object is to provide a display device including a control unit that controls driving from the second driving frequency to the first driving frequency.

In another aspect, in the power consumption reduction mode, the first display area of the display panel is driven at a first driving frequency and the second display area of the display panel is driven at a second driving frequency, detecting a touch of the display panel and touching the touch panel. A method of driving a display device is provided, including generating touch information corresponding to coordinates, receiving the generated touch information, and driving a second display area at a first driving frequency.

In another aspect, in the power consumption reduction mode, the first display area of the display panel is driven at the first driving frequency and the second display area of the display panel is driven at the second driving frequency. In the power consumption reduction mode, the touch sensor is Driving at a second touch driving frequency, detecting a touch on the display panel to generate touch information corresponding to the touch coordinates, and if the generated touch information includes touch coordinates included in the first touch area, the second touch area A method of driving a display device comprising driving a touch area at a first touch driving frequency and driving the second display area at a first driving frequency when the generated touch information includes touch coordinates included in the second touch area. is to provide.

According to the present embodiments, a display device capable of reducing power consumption and a method of driving the same can be provided.

1 is a structural diagram showing an example of a display device according to this embodiment.
FIG. 2A is a plan view showing a first embodiment of a touch sensor employed in the display panel shown in FIG. 1.
FIG. 2B is a plan view showing a second embodiment of the touch sensor employed in the display panel shown in FIG. 1.
FIG. 3 is a plan view of the display panel shown in FIG. 1 divided into a first area and a second area.
FIG. 4A is a timing diagram showing a first embodiment in which the first display area of the display panel shown in FIG. 3 is driven.
FIG. 4B is a timing diagram showing a second embodiment in which the second display area of the pass panel shown in FIG. 3 is driven.
FIG. 5 is a structural diagram showing an embodiment of the gate driver shown in FIG. 1.
FIG. 6 is a structural diagram showing an embodiment of the control unit shown in FIG. 1.
FIG. 7 is a flowchart illustrating an embodiment of a method of driving the display device shown in FIG. 1 .

Hereinafter, some embodiments of the present invention will be described in detail with reference to the exemplary drawings. In adding reference numerals to components in each drawing, identical components may have the same reference numerals as much as possible even if they are shown in different drawings. Additionally, when describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description may be omitted.

Additionally, when describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, sequence, order, or number of the components are not limited by the term. When a component is described as being “connected,” “coupled,” or “connected” to another component, that component may be directly connected or connected to that other component, but there are no other components between each component. It should be understood that may be “interposed” or that each component may be “connected,” “combined,” or “connected” through other components.

1 is a structural diagram showing an example of a display device according to this embodiment.

Referring to FIG. 1, the display device 100 may include a display panel 110, a gate driver 120, a data driver 130, a touch driver 140, a control unit 150, and a power unit 160. .

The display panel 110 is arranged corresponding to the area where a plurality of gate lines (G1, G2,..., Gn-1, Gn) and a plurality of data lines (D1, D2,..., Dm-1, Dm) intersect. Images can be displayed by pixels. It is not limited to the gate line and data line disposed on the display panel 110.

The display panel 110 has a first display area that displays the first image in response to the first driving frequency in the power consumption reduction mode, and a first display area that is driven in the power consumption reduction mode in response to the second driving frequency and displays the second image. It can be divided into a second display area. The display panel 110 may operate in response to the first driving frequency in normal mode. However, it is not limited to this and may be driven at a higher frequency than the first driving frequency in normal mode. When the display panel 110 is driven by a driving frequency, the time for maintaining one frame of the screen displayed on the display panel 110 may correspond to the driving frequency. Accordingly, the time for which one frame is maintained may be different when the display panel 110 is driven by the first driving frequency and when the display panel 110 is driven by the second driving frequency. If the first driving frequency is a higher frequency than the second driving frequency, the time for which one frame is maintained may be shorter when driving at the first driving frequency than when driving at the second driving frequency.

The first image may be an image corresponding to the first driving frequency, and the second image may be an image corresponding to the second driving frequency. Additionally, the first driving frequency may be higher than the second driving frequency. The first driving frequency may be 60Hz, and the second driving frequency may be 15Hz. However, it is not limited to this.

Additionally, the display panel 110 may include a touch sensor (not shown). The touch sensor is disposed on the upper part of the display panel 110 and can detect a touch of the display panel 110. However, it is not limited to this and the touch sensor may be built into the display panel 110. The touch sensor can distinguish between a first touch area corresponding to the first display area of the display panel 110 and a second touch area corresponding to the second display area of the display panel 110. When the user touches the first touch area with a finger or a touch pen, the touch sensor determines that the first touch area has been touched, and when the user touches the second touch area with a finger or a touch pen, the touch sensor determines that the second touch area is touched. It can be determined that the touch area has been touched.

The touch sensor can be driven at the first driving frequency in normal mode and reduced power consumption mode. Additionally, the touch sensor may be driven at a first driving frequency in normal mode and at a second driving frequency in reduced power consumption mode. When the touch sensor is driven at the second driving frequency in the power consumption reduction mode, power consumption in the touch sensor can be reduced.

The gate driver 120 can transmit gate signals to a plurality of gate lines (G1, G2,..., Gn-1, Gn). The gate driver 120 may transmit a gate signal in response to a first driving frequency to the gate line corresponding to the first display area and transmit a gate signal in response to a second driving frequency to the gate line corresponding to the second display area. there is. When the gate driver 120 outputs the gate signal at the second driving frequency, the interval between high-state signals is large, so power consumption in the gate driver 120 can be reduced.

The data driver 130 can transmit data signals to a plurality of data lines (D1, D2,...,Dm-1, Dm). The data driver 130 may be driven at the same driving frequency as the gate driver 120. Therefore, when the gate driver 120 is driven in response to the first driving frequency, the data driver 130 is driven in response to the first driving frequency, and if the gate driver 120 is driven in response to the second driving frequency, the data driver (130) is driven in response to the second driving frequency. 130) can be driven in response to the second driving frequency. When the data driver 130 outputs a data signal at the second driving frequency, the interval between outputting the data signal is large, so power consumption can be reduced.

The touch driver 130 can detect a touch generated on the display panel 110 by driving the touch sensor included in the display panel 110 and calculate touch information about the touch coordinates corresponding to the touch point. The touch driver 130 can drive the touch sensor at the first driving frequency in normal mode. Additionally, the touch driver 130 can drive the touch sensor at the second driving frequency in the power consumption reduction mode. When the touch sensor is driven at the second driving frequency, power consumption can be reduced compared to when the touch sensor is driven at the first driving frequency.

The control unit 140 can drive the display panel 110 at the first driving frequency in the normal mode, and drive the first area of the display panel 110 at the first driving frequency and the second area in the reduced power consumption mode. It can be driven at this second driving frequency. When the control unit 140 drives the display panel 110 in normal mode, the touch sensor included in the display panel 110 can also be driven in normal mode. Additionally, when the control unit 140 drives the display panel 110 in a power consumption reduction mode, the touch sensor included in the display panel 110 can be driven in a normal mode or a power consumption reduction mode.

The control unit 140 can cause the gate driver 120 and the data driver 130 to drive at the first driving frequency in the normal mode, and the gate driver 120 and the data driver 130 can drive the gate driver 120 and the data driver 130 at the second driving frequency in the power consumption reduction mode. It can be run with . Additionally, the control unit 140 can cause the touch driver 140 to drive in response to the first driving frequency in the normal mode, and in the power consumption reduction mode, the touch driver 140 can drive in response to the first driving frequency or the second driving frequency. You can make it run.

Additionally, the control unit 140 may control the second display area to be driven at the first driving frequency when touch information is received from the touch sensor in the power consumption reduction mode. In addition, when the control unit 140 receives touch coordinates corresponding to the first touch area from the touch sensor in the power consumption reduction mode, it drives the touch driver 140 at the first driving frequency so that the touch sensor 110 is in normal mode. You can make it run. In addition, when the control unit 140 receives touch coordinates corresponding to the second touch area from the touch sensor in the power consumption reduction mode, the control unit 140 changes the driving frequency of the display panel 110 to the first driving frequency so that the display panel 110 changes to a normal state. It can be run in mode.

The power supply unit 160 may supply power to the display panel 110, gate driver 120, data driver 130, touch driver 140, and control unit 150. The power supply unit 160 changes the power supplied when the display panel 110, gate driver 120, data driver 130, touch driver 140, and control unit 150 operate in response to the second driving frequency. As a result, power consumption can be reduced. Additionally, in the power consumption reduction mode, the power supply unit 160 may output a low potential voltage. However, it is not limited to this.

FIG. 2A is a plan view showing a first embodiment of a touch sensor employed in the display panel shown in FIG. 1.

Referring to FIG. 2A, touch electrodes TEa may be disposed on the display panel 210a, and one touch electrode line 240a may be connected to each touch electrode TEa. Additionally, a portion of the touch electrode line 240a may overlap with at least one of the touch electrodes TEa. And, when a finger or a touch pen touches a point on the display panel 210a while the touch electrode (TEa) is supplied with a touch drive signal through the touch electrode line 240a, the touch electrode (TEa) and the finger or touch pen A capacitance is generated in between, and a touch detection signal detecting the generated capacitance may be output through the touch electrode line 240a.

FIG. 2B is a plan view showing a second embodiment of the touch sensor employed in the display panel shown in FIG. 1.

Referring to FIG. 2B, the touch electrode TEb disposed on the display panel 210b may have a diamond shape, and the touch electrodes may be connected in the horizontal direction or the touch electrodes may be connected in the vertical direction. Additionally, the touch electrodes TEb disposed on the outer portion of the display panel 210b may have a triangular shape.

Among the touch electrodes (TEb), the touch electrodes connected in the horizontal direction are connected to the touch drive line 241b among the touch lines to receive a touch drive signal, and among the touch electrodes (TEb), the touch electrodes connected in the vertical direction are connected to the touch drive line 241b. The electrodes may be connected to the touch detection line 242b among the touch lines to output a touch detection signal.

And, when the touch electrode (TEb) is touched at one point with a finger or a touch pen, the capacitance changes between the touch electrode (TEb) connected in the horizontal direction and the touch electrode (TEb) connected in the vertical direction, and touch detection occurs. A signal may be output to correspond to a change in capacitance.

The touch electrodes TEa and TEb shown in FIGS. 2A and 2B may be transparent electrodes. Additionally, the touch electrodes TEa and TEb may be in a mesh shape, so that a plurality of openings may be formed in each of the touch electrodes TEa and TEb, allowing light emitted from the display panel to pass through the touch electrodes.

Here, the number of touch electrodes (TEa, TEb) is not limited to that shown, and various numbers of touch electrodes (TEa, TEb) are installed on the display panel depending on the size of the display panel and the size of the touch electrodes (TEa, TEb). can be placed in

FIG. 3 is a plan view of the display panel shown in FIG. 1 divided into a first area and a second area.

Referring to FIG. 3, the display panel 310 may be equipped with a touch sensor shown in FIGS. 2A and 2B that detects a touch. Additionally, in the power consumption reduction mode, the display panel 310 may be divided into a first display area 311 and a second display area 312. The first display area 311 may be an area where an image is displayed in the power consumption reduction mode, and the second display area 312 may be an area where the image is not displayed in the power consumption reduction mode. Additionally, the position corresponding to the first display area 311 of the touch sensor may be set as the first touch area, and the position corresponding to the second display area 312 may be set as the second touch area. The first display area 311 and the second display area 312 can be set using gate lines, and the first touch area and the second touch area can be set using the touch electrode lines of the touch sensor. Additionally, the sizes of the first display area 311 and the second display area 312 may be fixed or may vary depending on the user's settings.

In the power consumption reduction mode, the first image can be displayed in the first display area 311 of the display panel 310 and the second image can be displayed in the second display area 312. The first image may be an image that is driven identically to the image displayed in normal mode, and the second image may be an image that consumes less power than the image displayed in normal mode.

The first image displayed in the normal mode or reduced power consumption mode may be an image displayed in correspondence to the first frequency, and the second image displayed in the reduced power consumption mode may be an image displayed in correspondence to the second frequency. The second frequency may be lower than the first frequency, and when the display panel is driven by the second frequency, the speed at which the image is converted is slow, and power consumption can be reduced. Accordingly, in the power consumption reduction mode, the display panel 310 is divided into a first display area 311 and a second display area 312, and the power consumption in the second display area 312 is reduced to reduce the display panel 310. Power consumption can be reduced.

Additionally, in the power consumption reduction mode, at least some gate lines of the second display area 312 may not be driven. That is, assuming that the number of gate lines corresponding to the second display area 312 is 100, the number of driven gate lines is 20 and the remaining 80 are not driven, so that the gate signal is output from the second display area 312. It can be implemented in a short time. However, the number of driving gate lines is not limited to this, and not all gate lines corresponding to the second area 312 may be driven.

Additionally, the second image displayed in the second display area 312 of the display panel 310 in the power consumption reduction mode may be an image corresponding to 0 gray scale. Accordingly, the data driver 130 shown in FIG. 1 does not output a data signal, thereby reducing power consumption in the data driver 130. Additionally, when the display device is a liquid crystal display device, power consumption can be reduced by preventing a portion of the backlight from emitting light in the second area that displays the second image. Additionally, when the display device is an organic light emitting display device using organic light emitting diodes, power consumption can be reduced by preventing the pixel corresponding to the second area from emitting light.

FIG. 4A is a timing diagram showing a first embodiment in which the first display area of the display panel shown in FIG. 3 is driven, and FIG. 4B is a timing diagram showing a second embodiment in which the second display area of the pass panel shown in FIG. 3 is driven. This is a timing diagram showing .

Referring to FIGS. 4A and 4B , the first display area 311 of the display panel 310 may be driven at a first frequency. However, the second display area 312 of the display panel 310 may be driven at a second frequency that is slower than the first frequency. Accordingly, the time corresponding to the section corresponding to one frame in the first display area 311 may be implemented as shorter than the time corresponding to the section corresponding to one frame in the second display area 312. Therefore, the display panel 310 can change screens on a frame-by-frame basis, but in the power consumption reduction board, the second display area 312 changes the screen at a slower rate than the first display area 311, reducing power consumption. This can be made smaller.

FIG. 5 is a structural diagram showing an embodiment of the gate driver shown in FIG. 1.

Referring to FIG. 5, the gate driver 520 may include a plurality of GIP circuits 520a and 520b. Each GIP circuit can output one gate signal.

The plurality of GIP circuits 520a and 520b may be connected to the output terminal of the mux 521, and the mux 521 outputs an enable signal through the output terminal in response to the control signal, thereby forming a plurality of GIP circuits 520a and 520b. Some of the GIP circuits 520a can be controlled to output gate signals. Due to this, the GIP circuits 520a, which received the enable signal from the mux 521, output gate signals (g1 to g5) applied to the gate line corresponding to the first display area and receive the enable signal from the mux 521. GIP circuits 520b that do not receive signals may not output gate signals (g6 to g10) applied to the gate line corresponding to the second display area. That is, the GIP circuit 520b, which applies the gate signal to the gate line corresponding to the second display area, is prevented from outputting the gate signal, so that only the gate line corresponding to the first display area transmits the gate signal (g1 to g5). It can be made to run.

Since the gate signal is not driven in the second display area, it may not be switched after the initial screen is displayed. The initial screen may be a screen corresponding to a data signal corresponding to the O gradation.

Accordingly, only some of the GIP circuits 520b among the plurality of GIP circuits 520a and 520b are operated by the mux, thereby reducing power consumption.

However, it is not limited to this, and the mux 521 includes two or more output terminals, transmits an enable signal to the GIP circuit that drives some of the gate lines corresponding to the second display area, and transmits an enable signal to the gates of some of the other gate lines. By preventing the GIP circuit that drives the line from transmitting an enable signal, some gate lines in the second display area can be driven by gate signals and other gate lines cannot be driven by gate signals.

FIG. 6 is a structural diagram showing an embodiment of the control unit shown in FIG. 1.

Referring to FIG. 6, the control unit 650 may include a calculation unit 651 and a memory 652. The calculation unit 651 may receive touch information corresponding to touch coordinates from the touch sensor. Additionally, the control unit 650 may store touch coordinates for the preset first display area in the memory 652.

The calculation unit 651 can determine whether the first display area has been touched by comparing the touch coordinates received from the touch sensor with the coordinate information for the first display area stored in the memory 652. Coordinate information for the first area stored in the memory 652 may be updated to correspond to changes in the first display area.

FIG. 7 is a flowchart illustrating an embodiment of a method of driving the display device shown in FIG. 1 .

Referring to FIG. 7, the display device can display images divided into a first display area and a second display area in a power consumption reduction mode (S700). The first display area may display the first image, and the second display area may display the second image. The first image may be displayed in response to the first driving frequency and the second image may be displayed in response to the second driving frequency. The first driving frequency may be a higher frequency than the second driving frequency. Accordingly, power consumption in the second display area can be further reduced compared to that in the first display area.

A touch on the display device can be detected (S710). The touch sensor included in the display device can detect a touch on the display device. The touch sensor can detect whether the first touch area corresponding to the first display area is touched or whether the second touch area corresponding to the second display area is touched. Additionally, the touch sensor may be driven in response to the first touch driving frequency in a power consumption reduction mode. Additionally, the touch sensor may be driven in response to the second touch driving frequency in a power consumption reduction mode. The second touch driving frequency may be a lower frequency than the second touch driving frequency. Therefore, when the touch sensor is driven in response to the second touch driving frequency in the power consumption reduction mode, the amount of power consumed by the touch sensor can be reduced. Additionally, the first touch driving frequency may be a different frequency from the first driving frequency, and the second touch driving frequency may be a different frequency from the second driving frequency. However, it is not limited to this, and the first touch driving frequency may be the same frequency as the first driving frequency, and the second touch driving frequency may be the same frequency as the second driving frequency.

The driving frequency of the touch sensor or display panel can be determined in response to the area where the touch was detected by the touch sensor (S720). When a touch is detected by the touch sensor, the display device can be controlled so that both the first display area and the second display area operate in response to the first driving frequency. Therefore, when the touch sensor detects a touch, the power consumption reduction mode can be switched to the normal mode.

Additionally, the touch sensor can operate in response to the second driving frequency, and when it is determined that the touch has touched the first touch area, the touch sensor can be enabled to operate in response to the first driving frequency. Accordingly, when it is determined that the first touch area has been touched, the display panel operates in a power consumption reduction mode, but the touch sensor can be operated in response to the first driving frequency, allowing touch detection to operate in the normal mode. Additionally, when it is determined that the touch sensor has touched the second touch area, the second display area of the display panel can be driven by changing from the second driving frequency to the first driving frequency. Accordingly, when the second touch area is detected as being touched, the display panel can be operated from the power consumption reduction mode to the normal mode. Additionally, the touch sensor can also be driven by changing from the second driving frequency to the first driving frequency.

The above description and attached drawings are merely illustrative of the technical idea of the present invention, and those skilled in the art will be able to combine the components without departing from the essential characteristics of the present invention. , various modifications and transformations such as separation, substitution, and change will be possible. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

100: display device
110: display panel
120: gate driver
130: data driver
140: touch driver
150: control unit
160: power unit

Claims (10)

A first display area that displays an image using pixels arranged corresponding to an area where a plurality of gate lines and a plurality of data lines intersect, and displays the first image in response to a first driving frequency in a power consumption reduction mode; a display panel that operates in response to a second driving frequency in the power consumption reduction mode and is divided into a second display area that displays a second image;
a touch sensor that detects a touch on the display panel and calculates touch information about touch coordinates;
a control unit that controls the second display area to be driven at the first driving frequency when the touch information is received from the touch sensor; and
Includes a gate driver that transmits gate signals to the plurality of gate lines,
The gate driver includes a plurality of GIP circuits each outputting a gate signal,
The plurality of GIP circuits are connected to at least one first GIP circuit connected to at least one first gate line corresponding to the first display area and to at least one second gate line corresponding to the second display area, and , comprising at least one second GIP circuit separate from the at least one first GIP circuit,
The gate driver further includes a mux including a first output terminal to which the at least one first GIP circuit is connected, a second output terminal to which the at least one second GIP circuit is connected, and an input terminal for receiving a control signal. ,
The MUX outputs an enable signal to the at least one first GIP circuit through the first output terminal in response to the control signal, and outputs an enable signal to the at least one first gate line corresponding to the first display area. A display device that outputs a signal, deactivates the at least one second GIP circuit through the second output terminal, and does not drive the at least one second gate line corresponding to the second display area. According to paragraph 1,
The gate driver transmits the gate signal in response to the first driving frequency to the at least one first gate line corresponding to the first display area and to the at least one second signal line corresponding to the second display area. A display device that transmits the gate signal to a gate line in response to the second driving frequency. According to paragraph 1,
In the power consumption reduction mode, the gate driver does not drive at least some of the gate lines corresponding to the second display area among the plurality of gate lines. delete A first display area that displays an image using pixels arranged corresponding to an area where a plurality of gate lines and a plurality of data lines intersect, and displays the first image in response to a first driving frequency in a power consumption reduction mode; a display panel that operates in response to a second driving frequency in the power consumption reduction mode and is divided into a second display area that displays a second image;
A touch is detected from a first touch area corresponding to the first display area and a second touch area corresponding to the second display area, wherein the first touch area operates in response to the first driving frequency, and the first touch area operates in response to the first driving frequency. 2 Touch area includes a touch sensor operating in response to the second driving frequency;
When touch information corresponding to the first touch area is received from the touch sensor, the touch sensor operates at the second driving frequency in response to the first driving frequency, and the touch sensor corresponds to the second touch area from the touch sensor. a control unit that controls the second display area to be driven from the second driving frequency to the first driving frequency when receiving touch information; and
Includes a gate driver that transmits gate signals to the plurality of gate lines,
The gate driver includes a plurality of GIP circuits each outputting a gate signal,
The plurality of GIP circuits are connected to at least one first GIP circuit connected to at least one first gate line corresponding to the first display area and to at least one second gate line corresponding to the second display area, and , comprising at least one second GIP circuit separate from the at least one first GIP circuit,
The gate driver further includes a mux including a first output terminal to which the at least one first GIP circuit is connected, a second output terminal to which the at least one second GIP circuit is connected, and an input terminal for receiving a control signal. ,
The MUX outputs an enable signal to the at least one first GIP circuit through the first output terminal in response to the control signal, and outputs an enable signal to the at least one first gate line corresponding to the first display area. A display device that outputs a signal, deactivates the at least one second GIP circuit through the second output terminal, and does not drive the at least one second gate line corresponding to the second display area. According to clause 5,
The gate driver transmits the gate signal in response to the first driving frequency to the at least one first gate line corresponding to the first display area and to the at least one second signal line corresponding to the second display area. A display device that transmits the gate signal to a gate line in response to the second driving frequency. According to clause 5,
In the power consumption reduction mode, the gate driver does not drive at least some of the gate lines corresponding to the second display area among the plurality of gate lines. delete A display device comprising a display panel that displays an image using pixels disposed corresponding to areas where a plurality of gate lines and a plurality of data lines intersect, and a gate driver that transmits a gate signal to the plurality of gate lines,
Driving a first display area of the display panel at a first driving frequency and driving a second display area of the display panel at a second driving frequency in a power consumption reduction mode;
detecting a touch on the display panel to generate touch information corresponding to touch coordinates; and
Receiving the generated touch information and driving the second display area at the first driving frequency,
The gate driver includes a plurality of GIP circuits each outputting a gate signal,
The plurality of GIP circuits are connected to at least one first GIP circuit connected to at least one first gate line corresponding to the first display area and to at least one second gate line corresponding to the second display area, and , comprising at least one second GIP circuit separate from the at least one first GIP circuit,
The gate driver further includes a mux including a first output terminal to which the at least one first GIP circuit is connected, a second output terminal to which the at least one second GIP circuit is connected, and an input terminal for receiving a control signal. ,
The MUX outputs an enable signal to the at least one first GIP circuit through the first output terminal in response to the control signal, and outputs an enable signal to the at least one first gate line corresponding to the first display area. Driving the display device so that a signal is output and the at least one second GIP circuit is deactivated through the second output terminal, thereby not driving the at least one second gate line corresponding to the second display area. method. A display device comprising a display panel that displays an image using pixels disposed corresponding to areas where a plurality of gate lines and a plurality of data lines intersect, and a gate driver that transmits a gate signal to the plurality of gate lines,
Driving a first display area of the display panel at a first driving frequency and driving a second display area of the display panel at a second driving frequency in a power consumption reduction mode;
Driving the touch sensor at a second touch driving frequency in the power consumption reduction mode;
detecting a touch on the display panel to generate touch information corresponding to touch coordinates; and
If the generated touch information includes touch coordinates included in the first touch area, the second touch area is driven at the first touch driving frequency, and the generated touch information includes touch coordinates included in the second touch area. and driving the second display area at the first driving frequency,
The gate driver includes a plurality of GIP circuits each outputting a gate signal,
The plurality of GIP circuits are connected to at least one first GIP circuit connected to at least one first gate line corresponding to the first display area and to at least one second gate line corresponding to the second display area, and , comprising at least one second GIP circuit separate from the at least one first GIP circuit,
The gate driver further includes a mux including a first output terminal to which the at least one first GIP circuit is connected, a second output terminal to which the at least one second GIP circuit is connected, and an input terminal for receiving a control signal. ,
The MUX outputs an enable signal to the at least one first GIP circuit through the first output terminal in response to the control signal, and outputs an enable signal to the at least one first gate line corresponding to the first display area. Driving the display device so that a signal is output and the at least one second GIP circuit is deactivated through the second output terminal, thereby not driving the at least one second gate line corresponding to the second display area. method.

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