KR101726640B1 - In cell type touch display device and method for compensating touch data using the same - Google Patents

Abstract

The present invention relates to a touch-cell built-in display device capable of removing noise from touch-sensitive data, and a touch-sensitive data correction method thereof. A plurality of lead-out lines for transmitting a touch sense signal from the plurality of touch sense sensors; A plurality of dummy lines, each of which is formed between each pair of lead-out lines with a pair of two lead-out lines adjacent to each other; And generating a plurality of dummy data corresponding to dummy signals from the plurality of dummy lines, generating a plurality of dummy data corresponding to the dummy signals from the plurality of dummy lines, And a touch data analyzing unit for correcting the plurality of touch sense data based on the plurality of dummy data and correcting the touch sense data of the lead out lines located on both sides by the average dummy data corresponding to one dummy line .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a touch-

The present invention relates to a touch display device, and more particularly, to a touch-cell-embedded display device capable of removing noise from touch-sensitive data and a touch-sensitive data correction method thereof.

The touch display device reads the touch sensing signals from the touch sensing sensors built therein and judges whether or not the touch is made and the touch position. However, in many cases, the touch sensing signals are affected by various kinds of noise from the inside or the outside of the touch display device.

FIG. 1 is a diagram showing a touch discrimination situation by normal touch sense data and distorted touch sense data.

1 (a) shows a touch discrimination situation under an ideal condition in which no noise components are mixed in the touch sensing data. In this case, since both the touch sensing data and the common voltage have a stable value, It can be known that only the touch-sensitive data is normally lower than the threshold value.

FIG. 1 (b) shows a touch discrimination situation in a condition close to the actual driving environment in which noise components are mixed in the touch sensing data. In this case, since both the touch sensing data and the common voltage are distorted, It can be seen that not only the corresponding touch-sensitive data but also the touch-sensitive data corresponding to other untouched portions fall below the threshold value.

If a noise component is added to the touch sensing data, there arises a problem that it is impossible to accurately determine whether or not the touch is made and the touch position.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems as described above, and it is an object of the present invention to provide a display panel in which a dummy line is provided inside a display panel, only an external noise component (dummy signal) is selectively detected through the dummy lines, The present invention provides a touch-cell-embedded display device capable of generating touch-sensitive data having a more accurate value by calibrating the touch-sensitive data based on the digitized noise component.

According to an aspect of the present invention, there is provided a touch-cell-embedded display device including: a plurality of touch-sensing sensors for outputting a touch-sensing signal in response to an external touch; A plurality of lead-out lines for transmitting a touch sense signal from the plurality of touch sense sensors; A plurality of dummy lines, each of which is formed between each pair of lead-out lines with a pair of two lead-out lines adjacent to each other; And generating a plurality of dummy data corresponding to dummy signals from the plurality of dummy lines, generating a plurality of dummy data corresponding to the dummy signals from the plurality of dummy lines, And a touch data analyzing unit for correcting the plurality of touch sense data based on the plurality of dummy data and correcting the touch sense data of the lead out lines located on both sides by the average dummy data corresponding to one dummy line .

The dummy lines are formed one by one between a 2k-1th (k is a natural number) lead-out line and a 2kth lead-out line; and the kth dummy line is formed between the 2k-1th lead-out line and the 2kth lead-out line.

Wherein the plurality of touch detection sensors are i * j (i and j are natural numbers); The i * j number of touch sensing sensors are arranged in the form of an i * j matrix; The plurality of lead-out lines being composed of j; The plurality of dummy lines being composed of j / 2; The i touch sensors included in the p-th (p is a natural number) column are commonly connected to the p-th lead-out line.

The touch data analyzing unit receives i * j pieces of touch sensing signals to generate i * j pieces of touch sensing data; (i * j) / two dummy signals to generate (i * j) / two dummy data; J dummy groups including i dummy data are formed by dividing the (i * j) / 2 dummy data by i, and an average of i dummy data included in each dummy group is obtained, Calculate dummy data; The i touch sense data generated by the i touch sense signals from the 2k-1th readout line and the i touch sense data generated by the i touch sense signals from the 2kth lead out line Are corrected using the average dummy data generated by the i dummy signals from the k-th dummy line.

The touch data analyzing unit may calculate i-th touch-sensing data by subtracting average dummy data related to the k-th dummy line from each of i pieces of touch sense data related to the 2k-1th lead- Generate i corrected touch sense data corresponding to the touch sense sensors; By subtracting the average dummy data related to the k-th dummy line from each of the i touch sense data related to the 2k-th lead-out line, an i-th dummy line corresponding to i touch sensed sensors connected to the 2k- And generates corrected touch sense data.

Each of the plurality of touch detection sensors is controlled according to a first scan signal from a first scan line and includes a first switching device connected between a DC drive power supply line and a node; A second switching element controlled in accordance with a second scan signal from a second scan line and connected to the node and any one of the lead-out lines; And a sensing capacitor connected to the node and the common electrode; And the first scan signal is output before the second scan signal.

A plurality of gate lines sequentially driven in accordance with a plurality of gate signals output sequentially; A plurality of data lines for transmitting image data; And a pixel switching element which is controlled according to a gate signal from any one of the gate lines and is connected to one of the data lines and the pixel electrode.

A step A for transmitting a plurality of touch detection signals output from a plurality of touch detection sensors through a plurality of lead-out lines; A step B of transmitting a plurality of dummy signals generated by a plurality of dummy lines formed by one pair of lead-out lines with a pair of two lead-out lines adjacent to each other, through the plurality of dummy lines; And generating a plurality of dummy data corresponding to dummy signals from the plurality of dummy lines, generating a plurality of dummy data corresponding to the dummy signals from the plurality of dummy lines, And correcting the plurality of touch sense data based on the plurality of dummy data and correcting the touch sense data of the lead out lines located on both sides by the average dummy data corresponding to one dummy line .

The dummy lines are formed one by one between a 2k-1th (k is a natural number) lead-out line and a 2kth lead-out line; and the kth dummy line is formed between the 2k-1th lead-out line and the 2kth lead-out line.

Wherein the plurality of touch detection sensors are i * j (i and j are natural numbers); The i * j number of touch sensing sensors are arranged in the form of an i * j matrix; The plurality of lead-out lines being composed of j; The plurality of dummy lines being composed of j / 2; The i touch sensors included in the p-th (p is a natural number) column are commonly connected to the p-th lead-out line.

The step (C) includes: C-1 step of generating i * j pieces of touch sensing data by receiving i * j pieces of touch sensing signals; (i * j) / 2 dummy signals to generate (i * j) / 2 dummy data; J dummy groups including i dummy data are formed by dividing the (i * j) / 2 dummy data by i, and an average of i dummy data included in each dummy group is obtained, C-3 step of calculating dummy data; And i touch sensed data generated by i touch sensed signals from the 2k-1th readout line and i touch sensed data generated by i touch sensed signals from the 2kth lead out line, And a step C-4 of correcting each of the dummy signals by using the average dummy data generated by the i dummy signals from the k-th dummy line.

In step C-4, the average dummy data related to the k-th dummy line is subtracted from each of the i touch sense data related to the 2k-1th readout line, I pieces of corrected touch sense data corresponding to the plurality of touch sense sensors; By subtracting the average dummy data related to the k-th dummy line from each of the i touch sense data related to the 2k-th lead-out line, an i-th dummy line corresponding to i touch sensed sensors connected to the 2k- And generates corrected touch sense data.

In the present invention, only the external noise component (dummy signal) is selectively detected through the dummy lines, the detected noise component is digitized, and the touch sense data is corrected based on the digitized noise component, And generate sensing data.

1 is a diagram showing a touch discrimination situation by normal touch sense data and distorted touch sense data
2 is a view illustrating a touch-cell-embedded display device according to an embodiment of the present invention.
FIG. 3 is a timing chart of signals output from the gate driver and the scan driver of FIG.
4 is a view for explaining an arrangement structure between lead-out lines and dummy lines in Fig. 2
5 is a detailed configuration diagram of one pixel having the touch sensing sensor of FIG.
6A and 6B are diagrams for explaining a method of generating corrected touch sense data according to the present invention;
FIG. 7 is a diagram illustrating a waveform of corrected touch sense data obtained through a touch data analyzer according to an embodiment of the present invention; FIG.
8 is a view for explaining problems of the related art and effects of the present invention

FIG. 2 is a view showing a touch-cell-embedded display device according to an embodiment of the present invention, and FIG. 3 is a timing diagram of signals output from the gate driver and the scan driver of FIG.

As shown in FIG. 2, a touch panel built-in display device according to an exemplary embodiment of the present invention includes a display panel DP having a plurality of pixels PXLs, a plurality of touch detection sensors TS, The touch data analysis unit TDA, the data driver DD, the gate driver GD, and the scan driver SD are connected to the lines ROL1 to ROLj, the dummy lines DML1 to DML (i / 2) .

The pixels PXL are composed of m * n (m and n are natural numbers). The m * n pixels PXL are formed in m * n pixel (PXL) regions formed by intersecting m gate lines GL1 through GLm and n data lines DL1 through DLn intersecting the m gate lines GL1 through GLm. do. At this time, the m * n number of pixels PXL are arranged in the form of m * n matrix.

The m * n pixels PXL are divided into a plurality of red pixels R, a plurality of green pixels G, and a plurality of blue pixels B. Each of the red pixels R displays a red image, each of the green pixels G displays a green image, and each of the blue pixels B displays a blue image. At this time, the red pixel (R), the green pixel (G), and the blue pixel (B) included in one row and adjacent to each other constitute one unit pixel. This unit pixel displays one unit image made up of red, green and blue.

As shown in FIG. 3, the gate driver GD sequentially outputs m gate signals Vg1 through Vgm for sequentially driving m gate lines in every frame period, To the m gate lines sequentially.

The data driver DD simultaneously outputs n image data for each horizontal period in which one gate line is driven, and simultaneously supplies these n image data to n data lines.

Each of the touch detection sensors TS outputs a touch detection signal in accordance with a touch from the outside. These touch detection sensors TS are embedded in the display panel DP together with the pixels PXL. At this time, the touch sensing sensors TS are formed in some pixels PXL. These touch sensing sensors TS are composed of i * j (i is a natural number smaller than m and j is a natural number smaller than n). These i * j touch sensors (TS) are arranged in the form of an i * j matrix.

The i * j number of touch detection sensors TS are driven according to 2 i scan signals Vs 1 to Vs 2 i sequentially output as shown in FIG. At this time, the j touch sensation sensors (TS) included in one row are supplied with two scan signals having sequential output timings. To this end, the 2q-1th (q is a natural number) scan line and the 2qth scan line are connected in common to j touch sensing sensors (TS) included in the q-th row.

As shown in FIG. 3, the scan driver SD sequentially outputs 2 i scan signals for sequentially driving 2 i scan lines every frame period, and sequentially outputs the 2 i scan signals to 2 i scan lines Respectively. These 2 < 1 > scan signals are output immediately after m gate signals are all output.

The lead-out lines consist of j pieces. These j lead-out lines transmit i * j touch sensing signals from i * j touch sensing sensors (TS). The i touch sensing sensors TS included in the pth (p is a natural number) column are commonly connected to the pth lead-out line.

The dummy lines are formed at least one between the lead-out lines and the lead-out lines adjacent to each other. These dummy lines are composed of j / 2. These dummy lines are lines which are not connected to any touch detection sensor TS. Each side of these dummy lines is connected to the data analysis unit and the other side is floating. Therefore, external noise-related component signals other than the touch sensing signal are applied to the dummy lines.

Here, the configuration of j lead-out lines and j / 2 dummy lines will be described in more detail as follows.

FIG. 4 is a view for explaining the arrangement structure between the lead-out lines and the dummy lines in FIG.

As shown in FIG. 4, the k-th dummy line is formed between the 2k-1th lead-out line and the 2kth lead-out line. That is, two adjacent lead-out lines are arranged as a pair, and two lead-out lines are arranged adjacent to both sides of one dummy line between each pair of the rod-out lines. For example, the first lead-out line ROL1 is disposed adjacent to the left of the first dummy line DML1, and the second lead-out line ROL2 is adjacent to the right of the first dummy line DML1 . A third lead-out line ROL3 is disposed adjacent to the left of the second dummy line DML2 and a fourth lead-out line ROL4 is disposed adjacent to the right of the second dummy line DML2 .

The touch data analysis unit TDA receives i * j touch sense signals from j lead-out lines and receives (i * j) / 2 dummy signals from j / 2 dummy lines. The i * j pieces of touch detection signals are current components. The touch data analysis unit TDA converts I * j pieces of touch detection signals into voltages, converts the voltages into digital signals, and outputs I * And generates sensing data. The touch data analyzer TDA also converts (i * j) / 2 dummy signals into digital signals to generate (i * j) / 2 dummy data. At this time, if (i * j) / two dummy signals are current components, the (i * j) / 2 dummy signals can be converted into voltages and converted into digital signals as described above.

 The i * j pieces of touch sensing data are data corresponding to i * j pieces of touch sensing sensors (TS) in a one-to-one correspondence. And (i * j) / 2 dummy data are signals corresponding to 1 * 2 to i * j touch sensors (TS). That is, one dummy data is data corresponding to two touch sensing sensors (TS) located on both sides of one dummy line providing the dummy data. The touch data analysis unit TDA corrects i * j pieces of touch sensing data based on (i * j) / two pieces of dummy data.

As described above, in the present invention, only the external noise component (dummy signal) is selectively detected through the dummy lines DML1 to DML (i / 2), the detected noise component is digitized, and based on the digitized noise component Thereby correcting the touch sensing data to generate touch sensing data having a more accurate value. For example, it is possible to generate corrected touch sense data by subtracting dummy data corresponding to the dummy line from each of the touch sense data. Therefore, the corrected touch sensing data does not include a noise component.

Alternatively, the average dummy data may be averaged by averaging the dummy data corresponding to one dummy line, the corrected dummy data may be generated by subtracting the average dummy data corresponding to the dummy line from each of the touch data have.

The configuration of the pixel PXL and the touch sensing sensor TS in FIG. 2 will be described in detail.

FIG. 5 is a detailed configuration diagram of one pixel PXL having the touch sensing sensor TS in FIG.

All the pixels PXL having the touch sensing sensor TS are the same in configuration and therefore one pixel connected to the first gate line GL1, the first data line DL1 and the first readout line ROL1 PXL) will be described.

One touch sensing sensor TS includes a first switching device TR1, a second switching device TR2, and a sensing capacitor Css, as shown in Fig.

The first switching element TR1 is controlled according to the first scan signal Vg1 from the first scan line SL1 and is connected between the DC drive power supply line PL and the node nd. Here, a DC driving voltage maintained at a constant voltage is supplied from the DC driving power supply line PL.

The second switching element TR2 is controlled according to the second scan signal Vg2 from the second scan line SL2 and is connected to the node nd and the first lead-out line ROL1.

The sensing capacitor Css is connected to the node nd and the common electrode. Here, a common voltage maintained at a constant voltage is supplied to the common electrode CE.

The operation of the touch sensing sensor TS having such a configuration will now be described.

First, the operation of the touch sensing sensor TS will be described when an external touch is not applied to the touch sensing sensor TS.

First, the first switching element TR1 is turned on by the first scan signal Vs1. Then, a DC driving voltage is supplied to the node nd through the turned-on first switching device TR1. Then, the sensing capacitor Css is charged with the difference voltage between the DC driving voltage and the common voltage.

Then, the second switching element TR2 is turned on by the second scan signal Vs2. At this time, the first switching device TR1 is turned off. A current corresponding to the difference voltage charged in the sensing capacitor Css, that is, a touch sensing signal flows through the first lead-out line ROL1 through the turned-on second switching device TR2. The touch sensing signal applied to the first lead-out line ROL1 is supplied to the touch data analyzer TDA.

Next, the operation of the touch sensing sensor TS will be described when an external touch is applied to the touch sensing sensor TS.

The operation at this time is the same as the operation when the above-described touch is not applied, and the difference voltage stored in the sensing capacitor Css by the touch is reduced. That is, when a touch is applied from the outside, the body of the user connected to the ground functions as a capacitor, and the charging amount of the sensing capacitor Css decreases. Then, the amount of the current supplied to the first lead-out line ROL1, that is, the amount of the touch sensing signal becomes relatively small.

The touch data analysis unit (TDA) can determine the touch position and the touch state by discriminating the size of the touch sense signal.

On the other hand, the pixel PXL includes a pixel switching element TR_P, a liquid crystal capacitance capacitor Clc, and a storage capacitance capacitor Cst.

The pixel switching element TR_P is turned on by the first gate signal Vg1 from the first gate line GL1 and the image data from the first data line DL1 on the turn- ). This pixel electrode may be one terminal of the liquid crystal capacitance capacitor Clc and the storage capacitance capacitor Cst.

The pixel PXL not including the touch sensing sensor also has the same structure as the pixel PXL as shown in FIG.

Meanwhile, a method of generating corrected touch sensing data by the touch data analyzer (TDA) according to the present invention will be described in detail as follows.

6A and 6B are views for explaining a method of generating corrected touch sense data according to the present invention.

Assume here that i and j are 31 and 58, respectively, as shown in Figs. 6A and 6B. The numerical values of i and j in the present invention can be changed as much as possible depending on the area of the display panel DP.

First, the first to m gate lines are sequentially driven to drive m gate lines so that m * n pixels (PXLs) receive image data and display an image.

Thereafter, i * j (i.e., 1798 (31 * 58)) touch detection sensors (TS) are driven by i * j (i. (I, j) / 2 (i.e., 899) dummy lines of (i * j) / 2 (i.e., 899 (1789/2) (I, j) / 2 (i.e., 899) dummy data (i, j) are sequentially output in units of rows, and i * j (I.e., 58) touch detection signals are outputted every one row, and j / 2 (i.e., 29 (58/2)) touch detection signals are output. ) Are output.

6A, the touch data analysis unit TDA receives i * j (i.e., 1798 (31 * 58)) touch sensing signals and outputs i * j (i.e., 1798 31 * 58) of the touch sensing data R1_1 to R58_31.

6A, the touch data analysis unit TDA receives (i * j) / 2 (i.e., 899 (1789/2)) dummy signals (i * j) (I.e., 899 (1789/2)) dummy data D1_1 to D29_31.

Then, i (i. E., 31) touch sense data generated by i (i. E., 31) touch sense signals from the 2n-1th readout line and i Each of the i touch sensed data generated by the touch sensing signals of the (i. E., 31) touch sensing data is corrected using each of the i dummy data generated by the i dummy signals from the n-th dummy line .

That is, i pieces of touch sensing data related to the n-th dummy line from each of the i pieces of touch sensing data related to the (2n-1) th lead-out line are subtracted from each other, And generates i corrected touch sense data corresponding to the touch sense sensors TS. For example, the first to thirty-first dummy data D1_1 to D1_31 related to the first dummy line may be associated with the first to thirty-first touch sense data R1_1 to R1_31 associated with the first lead- I subtract one from another. Specifically, the first dummy data D1_1 is subtracted from the first touch sense data R1_1, the second dummy data D1_2 is subtracted from the second touch sense data R1_2, and the third touch sense data R1_3 And subtracting the 31st dummy data D1_31 from the 31st touch sensing data R1_31 to obtain the 31st dummy data D1_31 as shown in FIG. And generates first to 31st corrected touch sense data r1_1 to r1_31 for each of the touch sensing data R1_1 to R1_31.

Then, i touch sensing data associated with the n-th dummy line is subtracted from each of the i touch sensing data associated with the 2n-th lead-out line, TS) of the corrected touch sense data. For example, the first to 31st dummy data D1_1 to D1_31 related to the first dummy line from the 32nd to 62nd touch sense data (R2_1 to R2_31) related to the second lead-out line, respectively, I subtract one from another. Specifically, the first dummy data D1_1 is subtracted from the 32nd touch sense data R2_1, the second dummy data D1_2 is subtracted from the 33rd touch sense data R2_2, and the 34th touch sense data R3_3 And subtracting the 31st dummy data D1_31 from the 62nd touch sense data R2_31 to obtain the 31st dummy data D1_31 as shown in FIG. Th touch sensing data r2_1 to r2_31 for each of the touch sensing data R2_1 to R2_31.

In this way, it is possible to generate corrected touch sense data for all i * j (i.e., 1,798) touch sense data.

Alternatively, instead of this method, the average dummy data may be used to generate corrected touch sense data for all i * j (i.e., 1,798) touch sense data as follows.

6A, the touch data analysis unit TDA receives i * j (i.e., 1798 (31 * 58)) touch sensing signals by receiving i * j (i.e., 58) of the touch sensing data (R1_1 to R58_31).

6A, the touch data analysis unit TDA receives (i * j) / 2 (i.e., 899 (1789/2)) dummy signals (i * j) (I.e., 899 (1789/2)) dummy data D1_1 to D29_31.

Subsequently, j (i.e., 58) dummy groups including i dummy data are formed by dividing (i * j) / 2 (i.e., 899) dummy data by i (I.e., 31) dummy data included in each dummy group, and calculates j (i.e., 58) average dummy data. For example, one average dummy data can be obtained by dividing the total sum of all the first to 31st dummy data D1_1 to D1_31 of FIG. 6A by 31. FIG. In this manner, the first through 58th average dummy data corresponding to the first through 58th dummy lines can be obtained.

Next, i (i. E., 31) touch sense data generated by i (i. E., 31) touch sense signals from the 2n-1th readout line and i (i. e., 31) touch sense data generated by i (i. e., 31) touch sense signals to i (i. e., 31) dummy signals By using the average dummy data generated by the average dummy data.

That is, by subtracting the average dummy data related to the n-th dummy line from each of the i touch sense data related to the (2n-1) th readout line, i touch sensing sensors I < / RTI > For example, the first average dummy data associated with the first dummy line is subtracted from each of the first through thirty-first touch sense data R1_1 through R1_31 related to the first lead-out line. Specifically, the first average dummy data is subtracted from the first touch sense data R1_1, the first average dummy data is subtracted from the second touch sense data R1_2, the first average dummy data is subtracted from the third touch sense data R1_3, The average dummy data is subtracted and ..., and the first average dummy data is subtracted from the 31st touch sense data R1_31 to obtain the first to 31st touch sense data R1_1 to R1_31 To the 31st corrected touch sense data r1_1 to r1_31, respectively.

Then, by subtracting the average dummy data related to the n-th dummy line from each of the i pieces of touch-sensitive data related to the 2n-th lead-out line, i To generate corrected touch sense data. For example, the first average dummy data related to the first dummy line is subtracted from each of the 32nd to 62nd touch sense data (R2_1 to R2_31) related to the second lead-out line. Specifically, the first average dummy data is subtracted from the 32nd touch sense data R2_1, the first average dummy data is subtracted from the 33rd touch sense data R2_2, The second dummy data is subtracted from the 62nd touch sense data R2_31 and the 32nd to 62nd touch sense data R2_1 to R2_31 Th corrected touch sense data r2_1 to r2_31 for each of the 32th to 61st corrected touch sense data r2_1 to r2_31.

In this way, it is possible to generate corrected touch sense data for all i * j (i.e., 1,798) touch sense data.

FIG. 7 is a diagram illustrating a waveform of corrected touch sense data obtained through a touch data analysis unit (TDA) according to an embodiment of the present invention.

7, only the corrected touch sense data of the portion corresponding to the portion touched by the finger by the corrected touch sense data has a numerical value lower than the threshold value correctly, and the correction touch corresponding to the remaining region except for the touch portion It can be seen that the sensed data has a value that exceeds the threshold value correctly. That is, according to the present invention, since the noise from the outside is removed from the touch-sensitive data, it can be determined that the touch is reliably discriminated.

8 is a diagram for explaining problems of the prior art and effects of the present invention.

8A shows a waveform of the touch sensing data provided by the conventional touch display device. Since a lot of noise components are included in the touch sensing data, these touch sensing data have a large deviation based on the threshold value And swing up and down. 8B shows waveforms of the corrected touch sensed data provided by the touch-cell built-in display device according to the present invention. Since the corrected touch sensed data is a state in which the noise components are removed, It can be seen that only the touch-sensitive data corresponding to the touched portion of the data is correctly dropped below the threshold value.

The values (5, 10, ..., 30) indicated on the X-axis in Figures 8 (a) and 8 (b) refer to the values of i described above. , 50) means the value of j described above. The coordinates of the X and Y axes are the coordinates of the i * j touch sensing sensors on the display panel. 8A, the numerical values (0, 500, ..., and 2500) indicated on the Z axis represent the sizes of i * j pieces of touch sense data, respectively. In FIG. 8B, The values (0, 500, ..., 2500) displayed on the Z axis represent the magnitude of each of the i * j corrected touch sense data.

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 or scope of the general inventive concept as defined by the appended claims and their equivalents. Will be clear to those who have knowledge of.

GL #: #th gate line DL #: #th data line
ROL #: #th lead out line DML #: #th dummy line
SL #: #th scan line DD: data driver
GD: Gate driver SD: Scan driver
PXL: Pixel TS: Touch Sensing Sensor
R: red pixel G: green pixel
B: blue pixel PN: display panel
TDA: Touch data analysis unit

Claims (12)

A plurality of touch sensing sensors for outputting a touch sensing signal in response to an external touch;
A plurality of lead-out lines for transmitting a touch sense signal from the plurality of touch sense sensors;
A plurality of dummy lines, each of which is formed between each pair of lead-out lines with a pair of two lead-out lines adjacent to each other; And
Generating a plurality of touch sensing data corresponding to touch sensing signals from the plurality of lead-out lines, generating a plurality of dummy data corresponding to dummy signals from the plurality of dummy lines, And a touch data analyzing unit for correcting the plurality of touch sense data based on dummy data and correcting touch sense data of lead out lines located on both sides by average dummy data corresponding to one dummy line Wherein the display device is a touch-cell-type display device. The method according to claim 1,
The dummy lines are formed one by one between a 2k-1th (k is a natural number) lead-out line and a 2kth lead-out line;
and the kth dummy line is formed between the 2k-1th lead-out line and the 2kth lead-out line. 3. The method of claim 2,
Wherein the plurality of touch detection sensors are i * j (i and j are natural numbers);
The i * j number of touch sensing sensors are arranged in the form of an i * j matrix;
The plurality of lead-out lines being composed of j;
The plurality of dummy lines being composed of j / 2; And,
and the i touch sensors included in the pth (p is a natural number) column are commonly connected to the pth lead-out line. The method of claim 3,
The touch data analyzing unit,
i * j pieces of touch sense signals to generate i * j pieces of touch sense data;
(i * j) / two dummy signals to generate (i * j) / two dummy data;
J dummy groups including i dummy data are formed by dividing the (i * j) / 2 dummy data by i, and an average of i dummy data included in each dummy group is obtained, Calculate dummy data; And,
The i touch sense data generated by i touch sense signals from the 2k-1th lead-out line and the i touch sense data generated by i touch sense signals from the 2kth lead out line Is corrected using average dummy data generated by i dummy signals from the k-th dummy line. 5. The method of claim 4,
The touch data analyzing unit,
And the average dummy data related to the k-th dummy line is subtracted from each of the i touch sense data related to the 2k-1th readout line to correspond to i touch sense sensors connected to the 2k-1th readout line I < / RTI > And,
Th dummy line from each of the i touch sense data associated with the 2kth lead out line, i < th > correction corresponding to i touch sense sensors connected to the 2kth lead out line, And generates the touch sensing data. The method according to claim 1,
Wherein each of the plurality of touch-
A first switching device controlled in accordance with a first scan signal from a first scan line and connected between a DC drive power supply line and a node;
A second switching element controlled in accordance with a second scan signal from a second scan line and connected to the node and any one of the lead-out lines; And
And a sensing capacitor connected to the node and a common electrode;
Wherein the first scan signal is output before the second scan signal. The method according to claim 1,
A plurality of gate lines sequentially driven in accordance with a plurality of gate signals output sequentially;
A plurality of data lines for transmitting image data; And
Further comprising a pixel switching element controlled according to a gate signal from any one of the gate lines and connected to one of the data lines and the pixel electrode. A step A for transmitting a plurality of touch detection signals output from a plurality of touch detection sensors through a plurality of lead-out lines;
A step B of transmitting a plurality of dummy signals generated by a plurality of dummy lines formed by one pair of lead-out lines with a pair of two lead-out lines adjacent to each other, through the plurality of dummy lines; And
Generating a plurality of touch sensing data corresponding to touch sensing signals from the plurality of lead-out lines, generating a plurality of dummy data corresponding to dummy signals from the plurality of dummy lines, And correcting the plurality of touch sense data based on the dummy data and correcting the touch sense data of the lead out lines located on both sides by the average dummy data corresponding to one dummy line. A touch sensitive data correction method of a touch cell built-in display device. 9. The method of claim 8,
The dummy lines are formed one by one between a 2k-1th (k is a natural number) lead-out line and a 2kth lead-out line;
and the kth dummy line is formed between the 2k-1th lead-out line and the 2kth lead-out line. 10. The method of claim 9,
Wherein the plurality of touch detection sensors are i * j (i and j are natural numbers);
The i * j number of touch sensing sensors are arranged in the form of an i * j matrix;
The plurality of lead-out lines being composed of j;
The plurality of dummy lines being composed of j / 2; And,
wherein the i touch sensing sensors included in the p-th (p is a natural number) column are commonly connected to the p-th lead-out line. 11. The method of claim 10,
In the step C,
C-1 step of receiving i * j pieces of touch sensing signals to generate i * j pieces of touch sensing data;
(i * j) / 2 dummy signals to generate (i * j) / 2 dummy data;
J dummy groups including i dummy data are formed by dividing the (i * j) / 2 dummy data by i, and an average of i dummy data included in each dummy group is obtained, C-3 step of calculating dummy data; And
The i touch sense data generated by i touch sense signals from the 2k-1th lead-out line and the i touch sense data generated by i touch sense signals from the 2kth lead out line And d) correcting the dummy data using average dummy data generated by i dummy signals from the k-th dummy line. 12. The method of claim 11,
In the step C-4,
And the average dummy data related to the k-th dummy line is subtracted from each of the i touch sense data related to the 2k-1th readout line to correspond to i touch sense sensors connected to the 2k-1th readout line I < / RTI > And,
Th dummy line from each of the i touch sense data associated with the 2kth lead out line, i < th > correction corresponding to i touch sense sensors connected to the 2kth lead out line, Wherein the touch sensing data is generated based on the touch sensing data.

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