KR20170077871A - Display device integrated with touch screen panel and method for driving the display device integrated with touch screen panel - Google Patents

Abstract

The present invention relates to a touch screen panel integrated display device and a driving method thereof, and more particularly, to a touch screen panel integrated display device which outputs a touch driving signal to all or a part of signal lines among a plurality of signal lines arranged in a display panel, The touch sensing operation of the display panel is partially or temporarily controlled. Accordingly, it is possible to prevent the touch recognition, which is different from the user's intention or the user's use, from being generated according to the state of the touch screen panel integrated display device It is possible to prevent an operation due to erroneous touch recognition and to reduce a current consumed in driving the touch sensing.

Description

TECHNICAL FIELD [0001] The present invention relates to a touch screen panel integrated display device and a method of driving a touch screen panel integrated display device. BACKGROUND OF THE INVENTION 1. Field of the Invention [0002]

The present embodiments relate to a touch screen panel integrated display device and a driving method of a touch screen panel integrated display device.

2. Description of the Related Art [0002] With the development of an information society, demands for a display device for displaying an image have increased in various forms. Recently, a liquid crystal display device (LCD), a plasma display panel (PDP) Various display devices such as an OLED (Organic Light Emitting Display Device) are being utilized.

Such a display device is provided with a touch-based input method in order to allow the user to input information or commands intuitively and conveniently by moving away from a conventional input method such as a button, a keyboard, and a mouse.

In order to provide such a touch-based input method, it is necessary to grasp the presence or absence of a user's touch and accurately detect touch coordinates.

For this purpose, the presence or absence of a touch and the presence or absence of touch based on the capacitance between the touch electrodes or the capacitance between the touch electrode and a pointer (e.g., a finger) through a plurality of touch electrodes (e.g., A capacitance touch method for detecting touch coordinates or the like is widely used.

Such a touch-based input method allows the user of the display device to easily input information or commands, thereby providing convenience for the user to use the display device. However, in some cases, it is inconvenient to the user due to unnecessary operation of touch recognition .

For example, in connection with a knock-on function in which a screen is turned on in response to a double-touch of a user while the screen of the mobile display is turned off, The screen may be turned on in response to the user's finger touching the display panel side of the mobile display device while holding the display device.

Also, in a state in which a movie or a TV is output on a full screen in a mobile display device, a reaction of the mobile display device due to a user's intention and a different touch recognition may hinder a user's viewing.

Such a user's intention and unnecessary screen turning-on due to different touch recognition are more frequently generated as the screen of the mobile display device becomes narrower, so that the display device using the touch input method responds to the touch recognition different from the intention of the user, It is necessary to have a way to control the situation.

It is an object of the embodiments to provide a touch screen panel integrated display device that prevents touch recognition that is irrelevant to a user's intention.

It is an object of the present embodiments to provide a touch screen panel integrated display device capable of controlling whether or not the touch sensing is driven according to the state of the display device.

In an embodiment, a plurality of gate lines and a plurality of data lines are disposed in an intersecting manner, a plurality of sub-pixels are disposed in a region where gate lines and data lines cross each other, and a plurality of sensing electrodes And a driver integrated circuit for outputting a touch driving signal to a plurality of sensing lines and receiving a touch sensing signal through a plurality of sensing lines, wherein the driver integrated circuit is provided with a plurality of data lines It is possible to provide a touch screen panel integrated display device which does not output a touch driving signal to all or some sensing lines of a plurality of sensing lines according to a data voltage.

In such a touch-screen panel integrated display device, the driver integrated circuit may include all or some of the plurality of sensing lines while the data voltage is not supplied to the plurality of data lines or while the black data voltage is supplied to the plurality of data lines It is possible to prevent the touch drive signal from being output.

In such a touch-screen panel integrated display device, the driver IC does not output the touch driving signal from the sensing lines of the first column to the sensing lines of the K-th (K? 2) A touch driving signal may be outputted as a sensing line of the column, and a touch driving signal may not be output as a sensing line of the Kth column. Also, a plurality of touch electrodes arranged in an NxM matrix may be formed of K (K = NxM) The touch driving signal may not be output to the sensing lines in the first to N-th columns and the sensing lines in the (K-1) th to K-th columns in the structure in which the plurality of sensing lines are connected to each other.

In another embodiment, a plurality of gate lines and a plurality of data lines are disposed in an intersecting manner, a plurality of sub-pixels are arranged in a region where gate lines and data lines cross each other, and a plurality of sensing electrodes A driver integrated circuit for outputting a touch driving signal through a plurality of sensing lines and receiving a touch sensing signal through a plurality of sensing lines, a microcontroller unit for controlling a touch driving signal output of the driver IC, And the driver integrated circuit does not output the touch driving signal to all or some sensing lines of the plurality of sensing lines in accordance with the control signal output from the micro control unit.

In such a touch screen panel integrated display device, when the micro control unit outputs a control signal corresponding to a knock-on state or a control signal corresponding to a full screen image output, the driver integrated circuit outputs a plurality of sensing It is possible to prevent the touch driving signal from being output to all or some of the lines.

According to another embodiment of the present invention, there is provided a method of driving a touch screen panel integrated display device including a display panel including a plurality of touch electrodes and a plurality of sensing lines connected to the plurality of touch electrodes, And a step of outputting a touch driving signal to a remaining sensing line of the plurality of sensing lines in accordance with the determined data voltage, .

According to the embodiments, it is possible to control whether the touch sensing is driven according to the state of the display device in the touch screen panel integrated display device, thereby preventing unnecessary touch recognition which is different from the intention of the user.

According to the embodiments of the present invention, it is possible to prevent unnecessary screen turning-on due to erroneous touch recognition by preventing the touch sensing of the left / right column of the mobile display device from being driven in the knock-on state of the mobile display device do.

According to the embodiments, the touch sensing for a part of the touch electrodes is controlled to be in the OFF state according to the state of the touch screen panel integrated display device, so that the consumption current by the touch driving can be reduced.

FIG. 1 is a diagram showing a schematic configuration of a touch screen panel integrated display device according to the present embodiments.
FIG. 2 is a diagram showing a schematic configuration of a touch system of a touch screen panel integrated display device according to the present embodiments.
3 is a diagram illustrating a configuration of a driver integrated circuit of a touch screen panel integrated display device according to the present embodiments.
4 is a diagram illustrating an example of a display mode section and a touch mode section of the touch screen panel integrated display device according to the present embodiments.
FIGS. 5 and 6 are views for explaining an unnecessary screen-on phenomenon of the touch screen panel integrated display device according to the present embodiments.
FIGS. 7 to 9 are views showing an example of touch drive control of the touch screen panel integrated display device according to the present embodiments.
10 is a flowchart illustrating a method of driving a touch screen panel integrated display device according to the present embodiments.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In the drawings, like reference numerals are used to denote like elements throughout the drawings, even if they are shown on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the components from other components, and the terms do not limit the nature, order, order, or number of the components. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; intervening "or that each component may be" connected, "" coupled, "or " connected" through other components.

1 is a system configuration diagram of a touch screen panel integrated display device 100 according to the present embodiments.

Referring to FIG. 1, the touch screen panel integrated display device 100 according to the present embodiments is a display device capable of providing both an image display function (display function) and a touch sensing function.

Referring to FIG. 1, a touch screen panel integrated display device 100 according to one embodiment of the present invention includes a plurality of gate lines GL and a plurality of data lines DL, A display panel 110 in which sub pixels (SP) are arranged, a gate driver 120 for driving a plurality of gate lines GL, a data driver 130 for driving a plurality of data lines DL, A controller 140 for controlling the gate driver 120 and the data driver 130, and the like.

The gate driver 120 sequentially drives the plurality of gate lines GL by sequentially supplying scan signals to the plurality of gate lines GL.

The gate driver 120 sequentially supplies the scan signals of the ON voltage or the OFF voltage to the plurality of gate lines GL under the control of the controller 140 to sequentially supply the plurality of gate lines GL And sequentially driven.

The gate driver 120 may be located on one side or both sides of the display panel 110 according to the driving method.

In addition, the gate driver 120 may include one or more gate driver integrated circuits.

Each gate driver integrated circuit may be connected to a bonding pad of the display panel 110 by a tape automated bonding (TAB) method or a chip on glass (COG) method, or may be connected to a GIP Gate In Panel) type and can be disposed directly on the display panel 110. [ In addition, they may be integrated on the display panel 110, or may be implemented by a chip on film (COF) method, which is mounted on a film connected to the display panel 110.

The data driver 130 drives the plurality of data lines DL by supplying data voltages to the plurality of data lines DL.

The data driver 130 converts image data received from the controller 140 into analog data voltages and supplies the image data to the plurality of data lines DL so that a plurality of data lines DL are formed. .

The data driver 130 may include at least one source driver integrated circuit to drive a plurality of data lines DL.

Each source driver integrated circuit may be connected to a bonding pad of the display panel 110 by a tape automated bonding (TAB) method or a chip on glass (COG) method, The display panel 110 may be directly disposed on the display panel 110 or integrated on the display panel 110.

In addition, each source driver integrated circuit may be implemented by a chip on film (COF) method. In this case, one end of each source driver integrated circuit is bonded to at least one source printed circuit board, and the other end is bonded to the display panel 110.

Meanwhile, the gate driving function and the data driving function in the touch screen panel integrated display device 100 according to the present embodiments may be provided in an integrated driver in which the gate driver 120 and the data driver 130 are integrated .

In this case, the touch screen panel integrated display device 100 according to the present embodiments may include at least one driver integrated circuit that provides both a gate driving function and a data driving function.

The controller 140 supplies various control signals to the gate driver 120 and the data driver 130 to control the driving of the gate driver 120 and the data driver 130.

The controller 140 starts scanning according to the timing implemented in each frame, switches the input image data input from the outside according to the data signal format used by the data driver 130, and outputs the converted image data , And controls the data driving at a proper time according to the scan.

The controller 140 may be a timing controller used in a conventional display technology, or may be an integrated control device that performs a further control function including a timing controller.

The controller 140 outputs various timing signals including a vertical synchronization signal Vsync, a horizontal synchronization signal Hsync, an input data enable (DE) signal, and a clock signal (CLK) From an external (e.g., host system).

The controller 140 outputs the switched image data by switching the input image data inputted from the outside according to the data signal format used by the data driver 130 and outputs the converted image data to the gate driver 120 and the data driver 130, A timing signal such as a vertical synchronization signal Vsync, a horizontal synchronization signal Hsync, an input data enable signal DE and a clock signal CLK to generate various control signals, 120, and the data driver 130, respectively.

For example, to control the gate driver 120, the controller 140 may include a gate start pulse (GSP), a gate shift clock (GSC), a gate output enable signal GOE Gate Output Enable), and the like.

Here, the gate start pulse GSP controls the operation start timing of one or more gate driver integrated circuits constituting the gate driver 120. The gate shift clock GSC is a clock signal commonly input to one or more gate driver integrated circuits, and controls the shift timing of the scan signal (gate pulse). The gate output enable signal GOE specifies the timing information of one or more gate driver ICs.

In order to control the data driver 130, the controller 140 may further include a source start pulse (SSP), a source sampling clock (SSC), and a source output enable signal (SOE) And outputs various data control signals (DCS: Data Control Signals).

Here, the source start pulse SSP controls the data sampling start timing of one or more source driver integrated circuits constituting the data driver 130. The source sampling clock SSC is a clock signal for controlling sampling timing of data in each of the source driver integrated circuits. The source output enable signal SOE controls the output timing of the data driver 130.

The controller 140 is connected to a source printed circuit board to which a source driver integrated circuit is bonded and a control printed circuit board (not shown) connected via a connection medium such as a flexible flat cable (FFC) or a flexible printed circuit (Control Printed Circuit Board).

A power controller (not shown) for controlling various voltages or currents to supply or supply various voltages or currents to the display panel 110, the gate driver 120, the data driver 130, . These power controllers are also referred to as power management integrated circuits.

The touch screen panel integrated type display device 100 according to the present embodiment includes a touch system for providing a touch sensing function. Hereinafter, the touch screen integrated type display device 100 according to the present embodiment The touch system will be described.

FIG. 2 is a diagram showing a schematic configuration of a touch system of a touch screen panel integrated display device 100 according to the present embodiments.

Referring to FIG. 2, the touch screen panel integrated display device 100 according to the present embodiment includes a plurality of touch electrodes serving as a touch sensor and a driver An integrated circuit 200, and the like.

In the touch system of the touch screen panel integrated type display device 100 according to the present embodiments, a plurality of touch electrodes are disposed on the display panel 110.

That is, in the touch screen panel integrated display device 100 according to the present embodiments, the display panel 110 includes a touch screen panel (TSP).

In the touch screen panel integrated display device 100 according to the present embodiments, the plurality of touch electrodes may operate not only as a touch sensor but also as a display electrode related to a display function.

In this sense, in the following description, the touch electrode is described as a common electrode (CE: Common Electrode).

When a plurality of common electrodes CE is used as a touch electrode, a touch driving signal (TDS) is sequentially applied to the plurality of common electrodes CE.

When a plurality of common electrodes CE are used as a display electrode, a display mode voltage is simultaneously applied to a plurality of common electrodes CE, and a plurality of common electrodes CE are applied to each sub- And may be an electrode corresponding to a pixel electrode existing in each region.

In this case, the display mode voltage applied to the plurality of common electrodes CE may be a common voltage Vcom corresponding to the pixel voltage (data voltage or its corresponding voltage) applied to the pixel electrode.

K (K? 2, K = N x M) common electrodes CE may be arranged on the display panel 110 and each common electrode CE may be in a block form as shown in FIG. 2 , But it does not matter whether it is made in any form as long as it is separated.

The driver integrated circuit 200 includes a touch driving function for supplying a touch driving signal TDS to the common electrode CE and a touch sensing signal TSS from a common electrode CE to which the touch driving signal TDS is applied, A touch sensing function for sensing presence or absence of a touch or calculating touch coordinates can be provided.

In order to drive the K common electrodes CE sequentially in a predetermined section for the touch driving, the driver integrated circuit 200 supplies the touch driving signal TDS Can be sequentially output.

The driver integrated circuit 200 receives the touch sensing signal TSS from the common electrode CE to which the touch driving signal TDS is applied and outputs the capacitance at the common electrode CE Voltage or charge amount) or capacitance change amount (voltage change amount or amount of charge change) to sense touch or calculate touch coordinates.

Meanwhile, the driver integrated circuit 200 may be electrically connected to the K common electrodes CE through K sensing lines SL.

The driver integrated circuit 200 receives the touch sensing signal TSS by supplying the touch driving signal TDS to one common electrode CE through one sensing line SL.

The driver integrated circuit 200 may be composed of several functional components or one or more integrated circuits in order to provide a touch driving function and a touch sensing function.

3 shows a schematic configuration of the driver integrated circuit 200 in the touch system of the touch screen panel integrated display device 100 according to the present embodiments. For convenience of explanation, K = 12, N = 3, 12 shows an example in which 12 common electrodes CE are arranged on the display panel 110 and 12 common electrodes CE are arranged in a matrix of 3 rows and 4 columns when M = 4.

3, in the touch system of the touch screen panel integrated display device 100 according to the present embodiments, the driver integrated circuit 200 includes a signal providing circuit 310, a switch circuit 320, a touch sensing signal detection A circuit 330, a sensing data generating unit 340, a touch sensing unit 350, and the like.

The signal providing circuit 310 provides the touch drive signal TDS to the switch circuit 320. [

The switch circuit 320 has one end connected to the signal providing circuit 310 and the other end connected to the K sensing lines SL.

The K sensing lines SL 11, SL 12, SL 13, SL 14, SL 21, SL 22, SL 23, SL 24, SL 31, SL 32, SL 33, CE 11, CE 12, CE 13, CE 14, CE 21, CE 22, CE 23, CE 24, CE 31, CE 32, CE 33, CE 34.

The switch circuit 320 sequentially connects one or more common electrodes CE to the signal providing circuit 310 in accordance with the touch driving sequence of each of the K common electrodes CE.

The touch driving signal TDS provided from the signal providing circuit 310 is sequentially transmitted to one or more sensing lines SL through the switch circuit 320 so that one or more common electrodes CE are sequentially applied with a touch driving signal TDS.

Meanwhile, the switch circuit 320 may include at least one multiplexer (MUX) (not shown).

When the switch circuit 320 includes one multiplexer MUX, twelve sensing lines SL are connected to one multiplexer MUX to form a 12: 1 multiplexer MUX, and four multiplexers MUX Three sensing lines SL are connected to one multiplexer MUX to form a 3: 1 multiplexer (MUX).

Each of the multiplexers MUX outputs the touch driving signal TDS provided from the signal providing circuit 310 to one of the sensing lines SL connected to the multiplexer MUX or the sensing line SL connected to the multiplexer MUX SL to the touch sensing signal detection circuit 330. The touch sensing signal TSS is supplied to the touch sensing signal detection circuit 330. [

The touch sensing signal detection circuit 330 can detect the touch sensing signal TSS received from one or more common electrodes CE to which the touch driving signal TDS is applied through the switch circuit 320. [

The sensing data generation unit 340 generates sensing data based on the touch sensing signal TSS detected from each common electrode CE.

The sensing data generating unit 340 may include an analog to digital converter (ADC) that converts the detected touch sensing signal TSS to a digital value to generate sensing data.

The touch sensing unit 350 senses the touch based on the sensing data. Here, sensing the touch means detecting the presence or absence of touch or calculating touch coordinates.

The touch sensing unit 340 may be implemented as a micro control unit (MCU) together with the signal providing circuit 310.

FIG. 4 shows signals in each section according to the display mode driving and the touch mode driving of the touch screen panel integrated display device 100 according to the present embodiments.

Referring to FIG. 4, the display mode and the touch mode may be time-divisionally alternated.

Referring to FIG. 4, the touch system and display driving structures of the touch screen panel integrated display device 100 can recognize the display mode and the touch mode through a touch sync signal. Here, the touch synchronous signal (Touch Sync) may be a control signal output from the controller 140 or the micro control unit (MCU).

When the signal level of the touch synchronous signal (Touch Sync) is high level (or low level), and when the signal level of the touch synchronous signal (Touch Sync) is low level (or high level) have.

The driver integrated circuit 200 outputs the touch driving signal TDS through the sensing line SL connected to the common electrode CE and outputs the touch sensing signal TSS through the sensing line SL, And senses the touch.

That is, as the display mode and the touch mode alternate with each other, the touch screen panel built-in display device 100 according to the present embodiment performs touch sensing regardless of the state of the touch screen panel built- .

Accordingly, even when it is necessary to limit the function of the touch sensing according to the state of the integrated display device 100, it is possible to perform an operation due to unnecessary sensing. In addition, unnecessary current There is a problem that the power consumption may be consumed.

5 and 6 are diagrams for explaining an example of a case where the function of the touch sensing is required depending on the state of the touch screen panel integrated display device 100 in the touch screen panel integrated display device 100 according to the present embodiments FIG.

Referring to FIG. 5, FIG. 5 illustrates a knock-on function of the touch screen panel integrated display device 100 according to the present embodiment, and a knock-on function Refers to a function that the screen is turned on by a double-touch input of the display panel 110 within a predetermined time while the screen of the touch-screen panel integrated display device 100 is turned off.

The data voltage is not supplied to the plurality of data lines DL arranged on the display panel 110 and the screen is not driven when the screen of the touch-screen panel integrated display device 100 is turned off. Alternatively, the black data voltage may be supplied to the plurality of data lines DL.

The driver integrated circuit 200 generates a touch driving signal for a plurality of sensing lines SL arranged on the display panel 110 in a touch mode period in a state in which the screen of the integrated screen display device 100 of the touch screen panel 100 is off, (TDS), receives a touch sensing signal (TSS) through a plurality of sensing lines (SL), and senses the touch.

Therefore, the touch sensing operation is performed in the touch mode section even when the screen of the integrated touch panel type display device 100 is turned off.

Accordingly, a touch may be sensed differently from the intention of the user, and the screen of the touch screen panel integrated display device 100 may be turned on.

6 shows an example in which the screen of the touch-screen panel integrated display device 100 is switched to a state in which the touch is recognized (ON) unlike the user's intention.

6, when the user touches both sides of the display panel 110 of the touch-screen panel integrated display device 100 with the finger of the user holding the touch-screen panel integrated display device 100 by hand, .

In this case, as the touch is sensed, the screen of the touch-screen panel integrated display device 100 can be turned on, which may cause unnecessary screen turning-on. In addition, since an unnecessary screen is turned on, The touch screen panel integrated display device 100 may be operated.

In the present exemplary embodiments, an ON / OFF function for controlling the touch sensing operation by the driver IC 200 is added so that a touch different from the intention of the user is sensed as in the case described above, Thereby preventing the display device 100 from operating.

FIG. 7 shows an embodiment of controlling the driving of touch sensing in the touch screen panel integrated display device 100 according to the present embodiments.

7, the display panel 110 of the touch screen panel integrated display device 100 according to the present embodiment includes a plurality of common electrodes CE and a plurality of sensing lines SL.

7 shows an example in which a plurality of sensing lines SL are formed in K. The sensing lines SL of the first column to the sensing lines SL of the Kth column are disposed on the display panel 110, And is connected to a plurality of common electrodes CE disposed on the substrate.

The driver integrated circuit 200 outputs the touch driving signal TDS to the K sensing lines SL and senses the touch by receiving the touch sensing signal TSS through the K sensing lines SL.

The driver integrated circuit 200 can sequentially output the touch driving signal TDS from the sensing line SL of the first column to the sensing line SL of the K column among the K sensing lines SL.

Alternatively, the display panel 110 may divide the display panel 110 to output a touch driving signal TDS to the sensing line SL of the first column and the sensing line SL of the K / 2 + 1 column in the touch mode section, The touch sensing may be driven by a sensing line SL of the second column and a sensing line SL of the (K / 2 + 2) -th column to drive the touch sensing. The driving method of the sensing line SL is not limited to this Of the Act.

The driver integrated circuit 200 outputs a touch driving signal to some sensing lines SL among the K sensing lines SL disposed on the display panel 110 according to the state of the integrated touch- The driving of the touch sensing can be controlled.

For example, the driver integrated circuit 200 may be configured such that a data voltage is not supplied to a plurality of data lines DL arranged on the display panel 110 of the touch screen integrated panel display device 100, The touch driving signal TDS may not be output to the sensing line SL of the first row and the sensing line SL of the Kth column among the K sensing lines SL.

That is, the touch sensing operation of some of the sensing lines SL among the K sensing lines SL arranged on the display panel 110 is controlled in a state where the screen of the touch-screen panel integrated display device 100 is turned off .

Alternatively, the touch sensing drive may be controlled according to a control signal output from the micro control unit (MCU).

In this case, if the control signal outputted from the micro control unit MCU is a control signal corresponding to the knock-on state, the driver integrated circuit 200 outputs the K sensing lines The touch driving signal TDS may not be output to the sensing line SL of the first column and the sensing line SL of the Kth column among the sensing lines SL.

The driver integrated circuit 200 outputs the touch driving signal TDS to the sensing lines SL excluding the sensing line SL in the first column and the sensing line SL in the K column in the touch mode section, It is possible to sense the touch on the common electrode CE except for the sensing line SL of the column and the common electrode CE connected to the sensing line SL of the Kth column.

That is, depending on the state of the touch-screen panel integrated display device 100, the touch sensing is driven, and the touch sensing drive of some sensing lines SL is turned off like the sensing line SL of one column disposed on the left / (OFF), so that the driving of the touch sensing can be partially controlled.

Therefore, the driver integrated circuit 200 can be operated in a state where the screen of the touch screen panel integrated display device 200 is turned off or in a knock-on mode, The touch sensing operation of the sensing line SL of one row arranged in the touch screen panel SL is not driven so that the screen is displayed by the touch input different from the intention of the user as in the state where the user holds the touch screen panel integrated display device 200 So that it can be prevented from being driven.

The driver integrated circuit 200 may limit the touch sensing drive of the K sensing lines SL in controlling the touch sensing drive of the K sensing lines SL disposed on the display panel 110. [

For example, if the control signal output from the micro control unit (MCU) is a control signal corresponding to the full screen image output, the driver integrated circuit 200 may be configured as K sensing lines SL disposed on the display panel 110 The touch sensing signal TDS may not be outputted, so that the touch sensing of the entire display panel 110 may be temporarily restricted.

Accordingly, when a movie or a TV is output to the entire screen through the touch screen panel integrated display device 100, it is possible to prevent the user from being disturbed by the touch input due to the user's intention.

The touch driving signal TDS is not output to all or some of the sensing lines SL of the sensing line SL disposed on the display panel 110 according to the state of the integrated display device 100 of the touch screen panel, Thereby reducing the current consumed.

8 shows another example of controlling the touch sensing drive of a plurality of sensing lines SL disposed on the display panel 110 in the touch screen panel integrated display device 100 according to the present embodiments.

Referring to FIG. 8, in the display panel 110 of the touch screen panel integrated display device 100 according to the present invention, K common electrodes CE are arranged in an N × M matrix, and K sensing lines (SL) are arranged to be connected to the K common electrodes CE, respectively.

The sensing lines SL of the first column to the sensing lines SL of the N columns are sequentially connected to the common electrode CE arranged in one column and the sensing lines SL of the (N + 1) (SL) are sequentially connected to the common electrode (CE) arranged in the next column.

The driver integrated circuit 200 is configured such that the display panel 110 is turned off as in the case where no data voltage is supplied to a plurality of data lines DL disposed on the display panel 110 or a black data voltage is supplied thereto The touch sensing operation of some sensing lines SL among the K sensing lines SL is limited.

Alternatively, when a control signal corresponding to the knock-on state is output from the microcontroller MCU or a control signal corresponding to the full screen image output is outputted, a part or all of the K sensing lines SL The touch sensing operation of the sensing line SL may be restricted.

For example, when controlling the touch sensing operation of the K sensing lines SL in the knock-on state, the driver integrated circuit 200 performs the sensing operation of the first row among the K sensing lines SL The touch driving signal TDS from the line SL to the sensing line SL of the Nth column and the sensing line SL of the (K-N + 1) th column to the sensing line SL of the Kth column is not output.

Accordingly, when the touch screen panel integrated display device 100 is in the knock-on state, the touch is sensed at the common electrode CE of one row arranged on the left and right sides of the display panel 110 It is possible to prevent a case where a touch different from the user's intention is sensed on the side of the display panel 110 and the screen is switched to the ON state.

In addition, by not outputting the touch driving signal TDS to some of the sensing lines SL among the K sensing lines SL disposed on the display panel 110, the current consumed in the output of the touch driving signal TDS is reduced .

When the microcontroller MCU outputs a control signal corresponding to the full screen image output, the driver integrated circuit 200 outputs the touch driving signal TDS to the entire sensing line SL disposed on the display panel 110, So that it is possible to prevent the user from unnecessarily performing an operation due to the touch sensing during the entire screen viewing and reduce the current consumed in the touch sensing.

9 is a diagram for explaining the touch sensing drive control of the touch screen panel integrated display device 100 according to the present embodiments in the switch circuit 320 side of the driver integrated circuit 200. In FIG.

Referring to FIG. 9, the switch circuit 320 in the driver integrated circuit 200 of the touch screen panel integrated display device 100 according to the present embodiments may include one or more multiplexers (MUX).

The multiplexer MUX is connected to a plurality of sensing lines SL disposed on the display panel 110 and sequentially outputs a touch driving signal TDS to a plurality of sensing lines SL, To the touch sensing signal detection circuit 330. The touch sensing signal TSS is inputted to the touch sensing signal detection circuit 330. [

The multiplexer MUX outputs a touch driving signal to the sensing lines SL connected to the multiplexer MUX according to a control signal output from the micro control unit MCU. It is possible not to output the touch driving signal to the touch sensing unit SL.

For example, when the touch screen panel integrated display device 100 is in a knock-on state, a multiplexer (MUX) connected to a sensing line SL disposed on the left and right sides of the display panel 110, The touch driving signal TDS can be prevented from being outputted to the sensing line SL arranged on the left / right side by controlling the switching on / off of the touch sensing circuit.

Alternatively, when the touch-screen panel integrated display device 100 is in the full-screen video output state, all the sensing lines SL connected to the multiplexer MUX are controlled by turning off the switching of the multiplexer MUX The touch driving signal TDS may not be outputted.

The switching on / off of the multiplexer MUX is controlled so that the touch driving signal TDS is applied to all or some of the sensing lines SL arranged on the display panel 110 The touch sensing function of the integrated display device 100 of the touch screen panel can be partially or temporarily restricted to prevent recognition of a touch different from a user's intention, So that it is possible to reduce the current.

FIG. 10 shows a process of driving the touch screen panel integrated display device 100 according to the present embodiments.

Referring to FIG. 10, the touch screen panel integrated display device 100 according to the present invention partially or temporarily limits the driving of the touch sensing according to the state.

The driver integrated circuit 200 of the touch-screen panel integrated display device 100 can control the data voltage supplied to the plurality of data lines DL arranged on the display panel 110 or the control voltage (S1000), and determines whether to turn off the touch driving according to the confirmation result (S1010).

The driver integrated circuit 200 may be configured such that the data voltage is not supplied to the plurality of data lines DL arranged on the display panel 110 or the black data voltage is supplied or that the touch screen panel integrated display device 100 is not knock- A touch driving signal is output only to the sensing lines SL other than the sensing lines SL among the plurality of sensing lines SL arranged on the display panel 110 (S1020).

At this time, when the touch screen panel integrated display device 100 is in the full screen video output state, the touch sensing driving of all the plurality of sensing lines SL disposed on the display panel 110 may be temporarily restricted.

The driver integrated circuit 200 outputs the touch driving signal TDS to the entire sensing line SL if the state of the touch screen panel integrated display device 100 is not in a state in which restriction of the touch driving is required (S 1030) .

Accordingly, in the touch screen panel integrated display device 100 including both the display drive function and the touch drive function, the touch screen panel 100 is provided with the on / off function of the touch sensing drive, The output of the touch driving signal TDS to the plurality of sensing lines SL disposed on the display panel 110 can be controlled according to the state of the integrated display device 100. [

By partially or temporarily limiting the touch sensing drive function according to the state of the integrated touch panel type display device 100, it is possible to prevent unnecessary operation of the touch screen integrated panel type display device 100 caused by different touch sensing from the intention of the user So that the current consumed in the touch sensing operation can be reduced.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. The embodiments of the present invention are not intended to limit the scope of the present invention but to limit the scope of the present invention.

100: touch screen panel integrated display device 110: display panel
120: gate driver 130: data driver
140: controller 200: driver integrated circuit
310: signal providing circuit 320: switch circuit
330: Touch sensing signal detection circuit 340: Sensing data generation unit
350: Touch sensing unit

Claims (12)

A plurality of gate lines and a plurality of data lines intersecting with each other, a plurality of sub-pixels arranged in a region where the gate lines and the data lines cross each other, and a plurality of touch electrodes and a plurality of sensing A display panel on which lines are arranged; And
And a driver integrated circuit for outputting a touch driving signal to the plurality of sensing lines and receiving a touch sensing signal through the plurality of sensing lines,
The driver integrated circuit comprising:
And does not output the touch driving signal to all or some sensing lines of the plurality of sensing lines according to a data voltage supplied to the plurality of data lines.
The method according to claim 1,
The driver integrated circuit comprising:
And does not output the touch driving signal to all or some sensing lines of the plurality of sensing lines while the data voltage is not supplied to the plurality of data lines.
The method according to claim 1,
The driver integrated circuit comprising:
And does not output the touch driving signal to all or some sensing lines of the plurality of sensing lines while the black data voltage is supplied to the plurality of data lines.
The method according to claim 1,
The driver integrated circuit comprising:
The touch driving signal is outputted from the sensing line of the second column to the sensing line of the (K-1) th column without outputting the touch driving signal to the sensing line of the first column in the plurality of sensing lines composed of K (K? And the touch driving signal is not outputted by the sensing line of K columns.
The method according to claim 1,
The driver integrated circuit comprising:
(K = N × M) columns are connected to the plurality of touch electrodes arranged in the form of N × M matrix, the sensing lines in the first to N-th columns and the K-N + And the touch driving signal is not output to the sensing lines of the first to Kth columns.
A plurality of gate lines and a plurality of data lines intersecting with each other, a plurality of sub-pixels arranged in a region where the gate lines and the data lines cross each other, and a plurality of touch electrodes and a plurality of sensing A display panel on which lines are arranged;
A driver IC for outputting a touch driving signal to the plurality of sensing lines and receiving a touch sensing signal through the plurality of sensing lines; And
And a micro control unit for controlling the output of the touch driving signal of the driver integrated circuit,
The driver integrated circuit comprising:
And does not output the touch driving signal to all or some sensing lines of the plurality of sensing lines according to a control signal output from the micro control unit.
The method according to claim 6,
The driver integrated circuit comprising:
Wherein the micro control unit outputs a control signal corresponding to a knock-on state to output the touch driving signal to all or some sensing lines of the plurality of sensing lines.
8. The method of claim 7,
The driver integrated circuit comprising:
And sequentially outputs the touch driving signal to a sensing line other than the sensing line of the first row and the sensing line of the Kth column among the plurality of sensing lines including K (K? 2) columns.
The method according to claim 6,
The driver integrated circuit comprising:
When the micro control unit outputs a control signal corresponding to a full screen image output, the touch driving panel does not output the touch driving signal to the plurality of sensing lines.
A method of driving a touch screen panel integrated display device including a display panel having a plurality of touch electrodes and a plurality of sensing lines connected to the plurality of touch electrodes,
Confirming a data voltage supplied to a plurality of data lines arranged on the display panel; And
Outputting a touch driving signal to a sensing line other than some of the plurality of sensing lines in accordance with the data voltage
The method comprising the steps of:
11. The method of claim 10,
The step of outputting the touch-
The touch driving signal is transmitted to the remaining sensing lines excluding the sensing line of the first row and the sensing line of the Kth column among the plurality of sensing lines constituted by K (K? 2) columns while the data voltage is not supplied to the plurality of data lines And sequentially outputting the output of the touch screen panel integrated type display device.
12. The method of claim 11,
The step of outputting the touch-
(K = N × M) columns are connected to the plurality of touch electrodes arranged in the form of N × M matrix, the sensing lines in the first to N-th columns and the K-N + And outputs the touch driving signal to the sensing lines other than the sensing lines in the first to Kth columns.

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