TW201214259A - Touch display device, driving method thereof, program for getting touch information, and memory device - Google Patents

Abstract

The purpose of the invention is to provide a touch display device, a driving method for the touch display device, a program for getting touch information, and a memory device, capable of reducing the influence caused by driving of a display device to the touch panel. The touch display device having a display device driven by an alternative voltage and a touch sensor reading the touch information of the input interface periodically. The touch display device includes a touch information detection part synchronizing the start timing of a reading operation of the touch sensor with a timing in a frame period of the display device and detecting the touch information in each frame period, and a touch information calculation part averaging the touch information with respect to an even number of continuous frames to get a calculated touch information for each frame period.

Description

201214259 VI. Description of the Invention: [Technical Field] The present invention relates to a touch display device, and particularly relates to a touch sensor having an AC driven display device and periodically reading input interface touch information Control display device. [Prior Art] In the past, in the capacitive-coupled touch display device, touch sensing is not provided as a 'dedicated sensing substrate', and touch sensing is directly formed on the color light-emitting substrate of the liquid crystal display device. The color filter substrate with the touch sensor and the thin film transistor array substrate are assembled to form a liquid crystal display device with a touch function. Such a so-called in-cell touch panel can be referred to Patent Document 1. Since the in-cell touch display device 70 has one glass substrate as compared with a touch display device having an additional touch sensor substrate, it has the advantages of being thinner, improving transmittance, and reducing cost. [Patent Document 1] Japanese Laid-Open Patent Publication No. 2008-32756. However, the above-described in-cell touch display device has a structure close to a thin film transistor (TFT) array substrate, and thus is susceptible to transistor operation. The influence is likely to cause coupling noise, so there is a problem that the detection sensitivity of the touch information is relatively lowered. Therefore, the object of the present invention is to provide a noise display capable of reducing the influence of the driving of the display device on the touch sensor, and detecting the touch information of the 201214259 control information with a high S/N ratio. Silk... Shows the driving method of the device, the touch bar and the recording medium. SUMMARY OF THE INVENTION In order to achieve the above object, the touch display device of the related touch display device and the periodic touch drive and the drive, and the touch sensing state of the touch information of the input interface The touch display device comprises: a crying 6^*1, a control shell. The hole private device, the item count period of the touch = and the frame of the clear frame are measured on Tuesday: the touch information of a frame period; and the touch information Ϊ" two even numbers of the frame period calculate the touch Control the information level; take a touch information statistics. The driver of the touch display device m ^ ^ 7 knife, no A '5 Hai touch display device and the parent ~ drive display device and cycle eight ^ The touch sensing state of the touch information of the input interface, the driving method includes: the touch poor detection step, the reading period of the second control sensing, the display device The frame period synchronization starts the measurement of the parent _ frame of the touch # _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ According to the present invention, it is possible to obtain touch information with less noise. [Embodiment] [Embodiment 1] Fig. 1 is a cross-sectional structural view of a touch display device according to Embodiment J of the present invention. The implementation, 1, and the touch display device 70 of the immersion i have 201214259 touch sensing H 丨 touch sensing! The controller 2G, the color filter, the light substrate 4〇, the thin film transistor array substrate 5〇, and the display device driving circuit 6〇. The touch sensor 10 and the touch sensor controller 2 constitute a touch sensing person The 杈 group, the % color filter substrate 4 〇, the thin film transistor array substrate %, and the display device driving circuit 6G constitute a display device. The touch sensor 1 () is formed on the shirt color filter substrate 40' and The color filter substrate 4A is assembled with the thin film transistor array substrate 5G, the display device driving circuit 6G, and the touch sensor controller 2G to form a % touch display device. The touch sensor ίο It is formed of a transparent electrode layer such as IT0 (Indium Tin 〇xide), and is formed on the same side of the color filter substrate 40 together with the color filter element layer. The in-cell touch display device is provided. The substrate for the touch sensor 1G has the advantages of being thinner, higher in transmittance, and lower in cost. The liquid crystal display substrate 40 and the thin film transistor array substrate 5 are filled with liquid crystal to constitute a liquid crystal display device. Liquid crystal display device by means of display The driving of the display device driving circuit 60 displays an image. Here, since the touch sensor is close to the thin film transistor array of the thin film transistor array substrate 5, it is very easy to fork to the thin film transistor driving. The occurrence of noise, especially in the case where the touch sensor 10 is a capacitive touch sensor, this configuration is prone to coupling noise and a decrease in the S/N ratio. Touch, sensor controller 20 is a device for driving and controlling a touch sensor. In the touch display device 70 of the present embodiment, by mounting various functions described later on the touch sensor control device 20, it can be shown in FIG. A high s/N ratio is realized in the in-cell touch display device 70. Fig. 2 is a plan view showing an example of the electrode structure of the touch sensor 1A of the first embodiment of the present invention. The touch sensor 10 is arranged in a matrix in which the X detecting electrodes u extending in the longitudinal direction and the horizontally extending (detecting) electrodes 12 are arranged in a matrix. In Fig. 2, there are M strips of X detection electrode u, and γ detects the electrode! 2 There are strips that form a matrix of Μ ( N (executive array). The Χ detection electrode 11 and the Υ detection electrode 12 arranged in a matrix are set to the sensor coordinate system. In Fig. 2, the lower left corner of the touch sensor 1 is set to: (ι, υ, the upper right corner is set to (Μ, Ν). Although the second picture is drawn with thousands of faces, X The detection electrode 1 〇 # γ detection electrode 12 is arranged in the opposite direction of the above-mentioned interval = when the finger or the stylus touches the input interface of the touch sensing ,, if it is a capacitive touch sensor, χ The electrostatic capacitance between the detection electrode 11 贞 γ detection electrode 12 changes, and if the anti-membrane touch sensor 'detects the conduction, the touch position is detected 罝 0. For example, in the capacitive touch sensor, press (I 〇 - (2 〇 - (1, 2) - (UNh (Μ, Ν)) along the line 1 CI 1 ground sweep & coordinate point, read the touch information of each coordinate point to detect it. When the - line ends, replace the line, each line sequentially performs the touch information of all the coordinates of the last line All of them are detected, and the touch information of the input interface (touch surface) of the touch sensor 10 is detected. Because of the touch intensity including the presence or absence of touch The detected coordinates 2 are specific to the touch position, so the touch information includes the touch position of the second position, and in the case of the binary data, the intensity of the touch cannot be detected, and only the presence or absence of the touch can be detected. Fig. 3 is a block diagram showing the structure necessary for realizing functions in 201214259, which is an example of the touch display device according to the embodiment of the present invention. Fig. 3 is a diagram showing the touch of the embodiment 1. Control display device 7 satellite device 10, touch sensor controller 20, thin film transistor array 歹 ^ ^ display device drive circuit 00. touch sensor 10, = pole:; touch sensing The controller has a touch=, touch-touch farm 25. The touch information detection and attack device 22, the timing control skirt 23, the memory split ^.--About the touch control II 1G, thin film electric crystal The description of the same reference numerals will be omitted, and the description will be omitted. The display device driving circuit 60 is used to drive the display device of the touch display device, and is constituted by the driver 1C, etc. The way to drive. The display device of 冓成—is used to describe the surface inversion The driving diagram of the mode. No.::, member: the letter 峨 ^ : 4 figure is not, the data signal voltage applied to the display device is the alternating voltage wave inverted once every negative polarity father / two: _ signal size (brightness ), ^ sound is displayed:, - but both are in the same - period τ inversion. * Period Τ and display - frame period is the same length of time. = 〇. 2 6 6 〇 HZ drive, therefore At the same time, the frame period is _, that is, the screen of each of the 16.6TM reverse display screens, ... thus constitutes a continuous image, and in this embodiment, for easy understanding, each frame week 201214259 In the period of time, the sub-pixels are reversed to the same polarity, and the surface inversion driving method is taken as an example, but the dot inversion driving method in which each sub-pixel adjacent to each frame is reversed is also included. Every time a picture moves. No matter which kind of inversion driving method, in the unit of 昼 = = every frame period - Λ, IJ., ---,. ^ a _ human polarity reversal, positive polarity data signal voltage 盥 negative poor The signal power a interacts to apply such an AC drive to the same. In the line inversion driving method, in addition to the column inversion driving method in which each column is reversed to be different from each other, and the inversion driving method in which each row is reversed to be different from each other, the (four) line inversion driving method is also included. V-line anti-motion mode # Each _ (four) axis drive mode is not limited to the reversal of adjacent sub-pixels, but also includes 2 points: ^ drive mode, various dot inversion drive modes. Point reversal Returning to Fig. 3, the display device driving circuit 60 sequentially drives the thin film 曰 = column substrate _ crystal array so that a period of 1.66 msec is displayed to display a face. It can be strong: the control device starts to synchronize with the frame period of the display device 21 and the reading operation of the sensor 1〇, and the touch information of the sensor 1〇 is detected in each frame. The touch display of the prior art is used to display the touch sense in the touch display device 70 of the independent touch circuit controller and the touch sensor controller. The action of the touch information of 10 is the same as the frame period of the display device. The touch device 22 is a device for reading the touch information of the input interface of the touch sensor 10. As described in FIG. 2, the gamma detection power J2 a 201214259 or the X detection electrode 11 is scanned, and the touch information of each coordinate is sequentially read. Specifically, the electrostatic capacitance of each line is read to sequentially detect the touch information, and the data of the read touch information is memorized in the memory device 24. The reading device 22 performs a full scan by reading the full electrodes 11, 12, and thus has a predetermined read cycle. The timing control device 23 is a device that controls the start timing of the reading operation of the reading device 22. In the touch display device 70 of the present embodiment, the reading operation of the reading device 22 is started in synchronization with the frame period of the display device. Therefore, the sequence control device 23 acquires the frame period of the display device by the display device drive circuit 60, and starts the reading operation of the reading device 22 in synchronization with the frame period. The memory device 24 is a device for sequentially storing touch information read by the reading device. The minimum limit of the memory device 24 may be a buffer for detecting the interface capacity of the touch sensor 10, and more complex touch information can be memorized when a plurality of touch information is obtained in one frame period. . The memory device 24 can be composed of general memory for a computer or the like. The reading device 22, the timing control device 23, and the memory device 24 constitute a touch control information detecting device 21 that detects touch information in each frame period of the touch display device 70. The touch information computing device 25 calculates an average of consecutive even frames from the read data of each frame period detected by the touch information detecting device 21, and obtains the touch information statistical value used for the noise cancellation. . The average calculation method may be, for example, calculating an average moving average method from a continuous predetermined number of average reading data for each frame period, or calculating the touch data without obtaining a frame period for each frame period. The calculated touch information is obtained under the frame period in which a continuous number of consecutive 201214259 touch information is accumulated, and the total 2 average method of the interval is set. It is also said that 'when you want to accurately obtain the touch-beat statistics of each side of the polar period, you can use the moving average method to calculate the average. If you want to reduce the number of data and reduce the computational burden, you can use the total amount of the set interval. The average method to take: touch tribute value. Reducing the computational burden can reduce the computational complexity of the circuit and reduce costs. Therefore, the four-differential method of the touch information computing device ^=4 value can use different kinds of minds according to the application; the brother 5 figure is used to describe the geography performed by the touch information computing device 2s. Fig. 5(A) shows an example of reading data of the touch sensor 10 which is affected by noise. An example of the touch information statistical value of the output control information computing device 25. When the device is positively driven, the output of the touch sensor 10 is not positive, and the negative sensor is driven by the touch sensor 10; The positive electrode detection data 1〇1 is detected by the display signal 81 and the touch (4) 11 1G _ control information contact 2 detection data 102 is driven by the display device when the negative polarity movement occurs in different frame periods, so the positive solution, The 5th and (4) will not be in the same frame period, but the positive polarity frame touch sensor will be displayed in the touch frame period of the easy-to-care cycle = please and the period of the frame period is 2 and negative In the sexual detection data 1G (10), the positive polarity frame (4) touch (4) data 91 is affected by the positive noise 81. The touch information material 92 of the negative period 201214259 frame period is affected by the negative noise 82. It is also said that the touch information materials 91 and 92 are respectively affected by the noise of the corresponding frame period polarity. Here, the positive noise 81 and the negative noise 82 are almost the same waveform, and only the polarities are different. The touch information material 9 and 92 are almost the same waveform and are also positive data. Therefore, when the positive polarity detection data 1〇1 plus the negative polarity detection data 1〇2, only the positive noise 81 and the negative noise 82 will cancel each other, and the touch information 91, 92 will be in the positive electrode. Sexual addition, and finally get a clean signal of noise cancellation. - Figure 5 (B) shows the data 103 after the combination of the detected data 1〇1 and the detected data 1〇2. As shown in Fig. 5(B), the positive noise 81 is offset against the negative polarity noise 82, and the data 1〇3 is calculated as the sum of the pure touch information materials 91, 92 without noise. In this way, the detection data 1〇1 of the touch sensor 1〇 when the positive polarity frame of the display device is driven is added to the detection sensor of the touch sensor 1〇 when the negative polarity frame is driven, and then The touch information statistical value is obtained by the moving average method, and the touch information signal with high S/N ratio after the noise cancellation is obtained. In the fifth (B) diagram, the waveform of the calculated data without the noise state is displayed. However, in the case of the movie, since the data written in the continuous frame period is not the same, the noise is not completely zero. . However, the image of extremely different data written in a continuous frame period is very J, so the noise is mostly offset by each other. - Returning to the calculation processing performed by the touch information computing device 25 in Fig. 3, the image read from the positive polarity frame and the synchronization starting from the negative polarity frame are described in the figure of Fig. 5. The detected read data is added,

S 201214259 and calculate its moving average. In this way, it is possible to obtain touch data statistics with less noise. In the third embodiment, the touch information detecting device 21 and the touch information computing device 25 are means for performing various kinds of calculation processing described above, and include, for example, an electronic circuit including an ASIC (Application Specific Integrated Circuit) and a CPU in which the reading program operates. Center Processing Unit, central processing unit, or computer. The functions of the touch information detecting device 21 and the touch information computing device 25 can be realized by a program for causing a computer to operate or for recording the program on a computer-readable recording medium. Figure 6 is a diagram showing a method of driving a touch sensor and a touch sensor according to an embodiment of the present invention. In Fig. 6, the various operation timings of the synchronization start of the touch sensor 10 of the frame period of the display device are shown. In terms of presentation, the frame and drive timing of the display device show the touch sensor scanning timing, noise influence, data average, and average post-noise effects. First, when the display device is turned off, only (μ, ν) of the scan reference data is displayed. Get the scan reference resource' (1,1= when the touch information is calculated. At this stage, it will be moved afterwards, no noise will occur. ',, no clothes are not driven in the first picture The frame period is displayed, and the pressure driving is displayed. The touch sensor 10 disc is positively broken and the positive polarity data is touched by the information detecting device 21, and the dream frame period is synchronously started, and the scanning can be performed through the sequential scanning. The scan of the line "takes the start of the reading action of the action" by the timing control only" buys the skirt set 22 Generally, the touch sensing cries: to control. '1〇 data reading cycle will be better than display The display period of one frame period set by 201214259 is shorter than 16.6 msec. Since the general reading speed (frequency) is faster than 60 Hz, the touch of the touch sensor 10 is before the end of the first frame period of the display device. The information has already been read. Here, even if the reading is completed, the next scan will not be performed, but the end of the first frame period of the display device will be waited. The detected data RAW [1] is read. Stored in the memory device 24. In addition, the read is obtained The material is affected by the positive polarity noise of the display device. In the second frame period, the display device is driven by a negative polarity data voltage. The touch sensor 10 starts synchronously with the negative polarity frame period. At this time, the data of the touch information is affected by the negative noise of the display device. The moving average of the read data RAW[2] and the RAW[1] stored in the memory device 24 (RAW) [1]+ RAW[2]) /2 is calculated by the touch information computing device 25, and this value is used as the detected data average value AVG[1]. The noise of the detected data average AVG[1] is caused by The first frame of the positive polarity drive is offset from the second frame of the negative polarity drive, so that the touch information statistical value that is not affected by the noise can be obtained. In the third frame, the display device is positively applied. The data voltage is driven. Similarly to the first and second frame periods, the touch sensor 10 starts synchronously with the timing of the start of the positive polarity frame driving, starts reading the scan, and detects the data of the touch information. At the same time, the information of the touch information is affected by the positive noise of the display device, but The data of the second frame affected by the negative noise is calculated as the moving average (RAW[2] + RAW[3] ) /2, and the positive and negative noises are offset each other, and the detection is not affected by the noise. The data average value AVG[2] is also the touch information statistics value. Similarly, in the fourth frame of the negative polarity data voltage application,

14 201214259 Calculate the moving average with the third frame period of the previous positive polarity data voltage, and obtain the detected data average AVG [3]. In the fifth frame period of the positive polarity drive, the moving average is calculated from the fourth frame period of the previous negative polarity drive, and the detected data average value AVG [4] is obtained. In this way, since the drive polarity of the frame that is continuous before and after the display device is always a combination of positive and negative, the average value of the touch information data detected by the consecutive frames is calculated, and the touch of the noise is offset. Information statistics. Fig. 7 is a view showing an example of the processing flow of each frame period of the touch display device 70 and the driving method thereof according to the first embodiment of the present invention. In step 100, the touch sensor 10 starts synchronously with the frame period of the display device, and starts reading of the touch information. The reading operation is performed by the reading device 22 of the touch information detecting device 21. The timing at which the reading starts is controlled by the timing control means 23. The read start timing is not fully synchronized with the display device and can be initiated at a slightly delayed time. The scanning period of the touch sensor is mostly shorter than the frame period of the display device, so that the touch information can be detected in the frame period. In step 110, the touch information of the touch sensor 10 in the frame period of the synchronization start is detected. The detected touch information is stored in the memory device 24. In step 120, the moving average of the detected data is calculated for the consecutive even number of frame periods including the frame period detected in step 110, because the touch information that has been detected is taken as an object, so of course in the step The detected data acquired in the frame period before the frame period detected in 100 to 110 is targeted. Thereby, the noise influence of the display device can be offset, and the touch information statistical value of the high S/N ratio can be obtained. Moving average calculation

15 S 201214259 is implemented by the touch information computing device 25. : Example! In the middle, although the average of the detected data is calculated for two consecutive frames, as long as the same number of positive polarity driving and negative polarity = frame period are included, the moving average of four consecutive four or six frame periods can also be used. Take the average value of the touch wire inspection (four) material. And increasing the number of flat beakers can achieve more precise touch information statistics. Increasing the average of the (four) frame number of the specific #_ will be described later. a Sit frame of the signal is executed in steps (10) to 120, so that it is possible to obtain a moving average of the detected data, and obtain the statistical value of the touch information for each frame period, but it is also possible For each of the two consecutive positive (4) and 贞姊 drive frames, the average statistical information is obtained. _Every space __ frame is calculated - the touch information statistics value, but if the number of f data is half of the frame period is also sufficient, you can get the touch for every two frame period Information statistics. Thereby, the burden of energy, subtraction, and different processing is made and the structure of the touch information computing device is made simple. If you want to further reduce the burden of the calculation process, you can not get the average of each cycle, but get a touch body, count, or every six side frames for every four frame cycles. Get - a touch statistics value. As long as the interval for calculating the average value range is a continuous even number of frame periods, there are considerable choices. - Fig. 8 shows an example of the touch sensor of the present embodiment and its driving method. Figure 8 (A) shows the reference data, and Figure 8 (B) shows the touch information detection data when the display device is in an odd frame period, Figure 8 (C), „, the staff display is placed in an even number The touch information at the frame cycle detects the 201214259 data, and the 8th (D) image shows the statistics of the flat control information. Among them, the defender j矾 will find the same elements after the data is detected. The constituent elements of the description are U, Y), and the horizontal plane is the 8th (4) figure, and the signal level is displayed. Because the display input:::, the reference data is detected. Checked in the input non-touch state = Drive: This is the state where there is no touch signal is zero. +, this is enough to hold the touch information of each touch = frame week _ = Do A network demon C) Both of them detect the finger image of the finger touch: the position of :: and the sensor signal level is negative gate = face two and the other part is in the 8th (B), 8 (6) The position of Caishan Peak is J. The finger image of the noise elimination is performed, and the calculation of (1) is performed. m· u Zhao team AW called /2 = noise cancels the finger image The ϊ ϊ ( 8(9)® shows the noise that is calculated by the calculation of (1) and the pattern is like the bedding. As shown in Figure 8 (D), it is possible to obtain a high S/ which is canceled by noise other than the finger image. For example, according to the touch sensor of Embodiment 1 and the driving method thereof, two consecutive frame periods are averaged, and the average value is subtracted from the reference data to obtain a high S/ A clear finger image of the N ratio. 201214259 [Embodiment 2] Fig. 9 is a diagram showing a driving method of a touch sensor and a touch sensor according to Embodiment 2 of the present invention. Fig. 6 is a timing chart of the same format in the sixth embodiment, wherein the same components as those of the embodiment i in the embodiment 2 will be denoted by the same reference numerals, and the description will be omitted. In the figure, the frame period and the driving timing of the display device are shown. It is the same as Fig. 6. In the embodiment 2, the frame of the touch-sensing n 1G scanning start timing crystal display device is started synchronously, which is the same as the embodiment 。. In the yoke example 2, a picture During the frame period, the touch information of the touch sensor is read twice. The example of the touch sensor 1() is generally shorter than 16.6 msec, and the reading speed is above 60 Hz. This is illustrated in Example 1. For example, the touch sensor 10 is If the reading speed is set above ΠΟΗζ, as shown in Figure 9, a full scan can be cycled twice in a frame period. In this case, two touch information items are detected in each frame period. In this case, the moving average of the consecutive frame periods is calculated to obtain the touch information statistics of the noise cancellation. At this time, the movement between the detected data detected in the same order of the periods in each frame is calculated. The average, for example, the moving average of the detected data RAW[1] of the first frame period and the T-out data RAW[3] of the second frame period, and the detected data of the first frame period RAW[2] ] The moving average of the detected data RAw[4] with the second frame period. That is to say, the moving average is calculated by the equation of (RAW[X] + RAW[X-2]) /2. ° The first frame period of the display device is the time to write the first picture. Therefore, when writing the picture from the top in the vertical direction, the first half of the frame period is 201214259. In the second half of the frame period, the lower half of the write is written. If the detected data of the touch sensor between the faces of the same field are not added, the synchronization within the frame period cannot be obtained, and the addition of different data becomes 'detected data becomes no. significance. Therefore, the moving average of the detected data RAW[1] read from the first reading of the first frame period and the detected data RAW[3] of the first reading of the second frame period is detected. The data average value AVG[1], the detected data RAW[2] from the second reading of the first frame period and the second reading of the second frame period RAW[4] The moving average obtains the average value of the detected data aVG[2]. Through such a meter, it is possible to obtain the average of the detected data AVG[1] and AVG[2] which eliminate the influence of noise. After that, AVG[1] and AVG[2] can be used as data corresponding to the two second frame periods, or after using (AVG[1]+ AVG[2])/2 Used for the touch information statistics corresponding to the second frame period. After the second frame, the same processing method is used, and the precise touch information statistics can be calculated from the plurality of detected data. According to the touch display device 7 of the second embodiment and the driving method thereof, two pieces of data can be used for each frame period to obtain precise touch information statistical values. In the average calculation, the average range can be calculated and the total average is calculated for each predetermined frame period to obtain the touch statistics. (4) Embodiment 1 is the same. [Embodiment 3] Fig. 1 is a view showing a driving method of a touch sensor 1 squid (four) detector 1G according to a third embodiment of the present invention. A timing chart of the same format as that of the ninth embodiment of the embodiment γ and the ninth picture of the example 2 is shown in Fig. 1G. 201214259 In the second embodiment, one frame period is read twice, but in the third embodiment, one frame period is read three times, which is different from the second embodiment. At this time, the reading speed of the reading device 22 is set to be 180 Hz or more. As a result, as shown in Fig. 10, three detection data can be obtained in one frame period. The noise cancellation calculation performed by the touch information computing device 25 is performed in the same frame period as before, and as in the description of the second embodiment, for each of the three detected data, respectively The moving average between the detected data read in the same detection order in each frame period is calculated. In other words, the moving average of the detected data RAW[1] of the first frame period and the detected data RAW[4] of the second frame period, and the detected data RAW of the first frame period are calculated. 2] The moving average of the detected data RAW[5] with the second frame period, and the detected data RAW[3] of the first frame period and the detected data of the second frame period RAW[6] ] The moving average. Thereby, the average value of the detected data of the noise cancellation AVG[1], AVG[2], AVG[3] can be calculated and used as the statistical value of the touch data of the second frame. The three data in one frame period can be directly used for subsequent calculations. In the case of one frame period, as long as one data is available, the average of three data can also be calculated (AVG[1] + AVG[2]+AVG[ 3]) /3, as the touch information statistics. After the third frame period, the same processing method is used to obtain three touch information materials in one frame period, thereby being able to use most of the data to obtain precise touch information. In the second embodiment, the touch sensor 10 is scanned twice in a frame period. In the third embodiment, the touch sensor 10 is scanned three times in a frame period, but if the touch sensor 10 is Read faster, one

20 S 201214259 You can also scan more times within the frame period. The Z-average method is not only a moving average, but the calculation of the touch-cut value for each predetermined number of frame periods can be obtained by using the fixed-area method, which is the same as that of the actual and the second embodiment. According to the touch display device 7Q of the embodiments 2 and 3 and the driving method of the driving method, the touch sensor 1 is scanned a plurality of times, and the dog can obtain the fine touch-before data statistics. [Embodiment 4] The invention of the invention is based on the invention. Figure 11 shows the example! In the sixth example, the ninth diagram, and the second format of the same format as the first Q diagram of the third embodiment, in the second example of the fourth embodiment, the scanning sensor 1 (the scanning correction sequence, the touch resource calling method and the embodiment i) the same. And the fourth (fourth) example ^ ] V Qing's calculation method is also in the real AVG^f Shishi example / the fourth frame, to calculate the average value of the detected data 犄 'exception of the first to fourth frame four maps The second embodiment 1 in which the data is detected in the frame period (1), RAW [2], raw [3], and Μ is different. The first frame is the positive polarity drive, : 'The third frame is the positive polarity drive, the fourth picture is the polarity drive, and the number of positive and negative drives is the same. In the face-inversion driving mode, the driving of the positive polarity and the negative polarity must be alternated, so the number of positive and negative driving cycles of even-numbered frames must be the same. Therefore, in the case of 201214259 which calculates the average value of the detected data for four or more consecutive even frame periods, it is also possible to positively and negatively offset the touch data statistics of the display device. 'Get the noise in the π picture, the fifth frame cycle continues four dragons _ check "Check the same use even RAwril Da machi out of the Baye RA w [2] ~ RA w [5; |, W [ 6], the average value of the detected data avG[4], as the statistical value of the touch data. Among them, the moving average of the general-style (four) ^ above 'by increasing the number of data to calculate the average value, can improve the Pingya correction is displayed The influence of the device brings _heteraneous noise, or thermal noise, etc. ~ In the fourth example, the number of data in the second frame period and the third frame is less, and the same method as in the fourth embodiment is used. ^, Α 图 frame period calculates the detected data AVG[1], AVG[2], but also makes: (2) formula 'from the fourth frame period to calculate the detected ^: value. The details of the calculation process can be variously set depending on the application. According to the touch display device 7G of the fourth embodiment and the driving method thereof, it is possible to increase the sampling number of the average value by using, for example, an even number of detected data of more than one or more. And get less noise _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The average value of the data is detected. Although the total number of data is reduced, the accuracy of the touch information statistics can be increased, and the burden of the processing is greatly reduced. [Example 5]

22 201214259

^Ij n"m 11 ^1M y detecting the electrode layer 1 of the touch sensor of the fifth embodiment of the touch sensor of the touch sensor;: Fig. 2, Fig. 2 Although the linear Y detecting electrode 12 is used to describe the electrode 11, _, _ ==?, but the first electrode can be a small square worm-like connection to form a touch sensor ( The 12th (4) = 1: The second electrode) 14 of the pole layer, the X detection electrode having the horizontal spur connection is detected by the X of the spur connection. The electrode layer 13 has the vertical electrode 15. The electrode shapes of both are different from the detection electrodes U and Y detection electrodes 12 of FIGS. 2 and 3, but the plurality of gamma detection electrodes 16 extending in the lateral direction are parallel to the 12th (B) diagram. A plurality of 乂 detection electrodes u extending in the longitudinal direction are placed in the same direction as the 丫 detection electrode 12 and the 乂 detection power. Fig. 13 is a view showing the touch sensor 19 of the fifth embodiment of the present invention. Fig. 13(A) shows the planar configuration of the touch sensing $^ electrode layer 17 of the fifth embodiment. Fig. 13(B) is a perspective view showing the entirety of the touch sensor 19 of the embodiment. Spoon In Fig. 13(A), the planar structure of the electrode layer 17 is shown. The X detecting electrode 15 and the Y detecting electrode 16 are disposed so as not to overlap each other to increase the surface area. In the thirteenth (B) diagram, the overall configuration of the touch sensor 19 is shown. After γ, the electrode layer 14 and the X detecting electrode layer 13 are laminated, the glass cover 8 is covered on the surface. The touch sensor 19 of this configuration can be used to form the touch display device 70 of the example of the present invention. Further, the structure of the touch sensors 10 and 19 can be used in various configurations = and 19 to form a touch display with less noise regardless of the configuration or the external structure. [Embodiment 6] Fig. 14 is a cross-sectional structural view showing an example of the touch display skirt η of the sixth embodiment of the present invention. In the 14th embodiment, the touch (four) display device 7 of the embodiment 6 includes a touch sensor, 10, a touch sensor controller 2, a sensor glass 30, and a color filter substrate 4 〇, thin film transistor array substrate %, display device drive circuit 6 〇. Touch sensor! The touch sensing sensor controller 20 and the sensor glass 30 constitute a touch sensor module, the color tear film substrate 4, the thin film transistor array substrate 5G, and the display device driving circuit are formed into a touch display device. 71. In the touch display device 71 of the embodiment 6, the touch sensing H 10 is not disposed inside the display device, and the sensor glass 30 is disposed on the color filter substrate 4G, and is only on the sensor glass 3 A touch sensor 10 composed of a transparent electrode layer such as Ιτ〇 is provided. That is to say, the touch display device 71 of the embodiment 6 and the embodiment} are in the first! The in-cell touch display device 70 shown in the figure is different in that the touch sensing module is independently provided on the display device. As such, the touch display device 71 of the present embodiment may also be a structure in which the touch sensor module and the display device are independent of each other. Generally, in such a separate set of touch display devices 71, although the sensor glass 30 is disposed between the touch sensor 10 and the color filter substrate 40, the shielding effect is improved, but if In the case where the noise of the display device is large,

S 24 201214259 71 and its driving method can also obtain the touch information of the touch display device of the present invention with less noise. [Embodiment 7] As a modification of Embodiment 1, an externally mounted (〇n_ceii) structure can be used to form the touch sensor 10 on a color filter substrate, but with a color filter element. The layers are formed on different sides of the color slab substrate 4Q such that the touch ❹彳H 1() is exposed to the outside when the color filter '4' is stacked with the thin film transistor array. The external touch display device=Although the color filter substrate 4G is present in the touch sensor 1G and the thin film transistor array substrate, it is quite susceptible to the thin film transistor array of the thin film transistor array substrate 50. . Therefore, the embodiment of the present invention can also apply the external touch-sensitive device 7G, thereby obtaining the touch statistical value of the high S/N ratio. As described above, the touch display I and the driving method thereof of the present invention can be used for various touch display devices in which the sensing states 1 and 19 are affected by the display device driving noise. In this way, it is possible to obtain statistics of the touch control information with less and higher noise. The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and various modifications and substitutions may be made to the above-described embodiments without departing from the scope of the invention. For example, in the present embodiment, the display device is a liquid crystal display device. However, as long as it is an AC drive and the drive AC voltage applied to each pixel is reversed, the polarity of each frame period is reversed. A variety of different display devices can be utilized. [Possibility of industrial use]

S 25 201214259 The present invention can be comprehensively applied to a touch display device that displays an image on a display device with an input interface and performs an input operation by touch of a finger or the like.

S 26 201214259 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional structural view of an embodiment i of the present invention. Fig. 2 is a plan view showing an example of the electrode structure of the touch sensing device of the crying control device 70 of the embodiment of the present invention. Fig. 3 is a block diagram showing the construction of an embodiment of the present invention. (4) The display of the 4th embodiment of the 4th is a schematic diagram of the driving of the surface inversion mode. It is used to describe the touch of the calculation at the touch information calculation; (Ϊ Α) The image shows the read data of the detected sensor 状态) in the state affected by the noise; The fifth (β) map shows an example of the touch information after the touch calculation processing device 25 calculates the processing. Figure 6 is a diagram showing a driving method of touch sensing and benefit measurement according to an embodiment of the present invention. Fig. 7 is a view showing an example of the processing flow of each frame of the touch display device 7 and the bean drive method of the embodiment i of the present invention. Eighth Fig. 8 shows an embodiment of the touch sensor of the embodiment and a driving method thereof. FIG. 9 is a diagram showing a driving method of a touch sensor 盥 touch damper according to Embodiment 2 of the present invention. The figure of the touch sensor and the touch sensor of the third embodiment of the present invention is described. FIG. 11 is a diagram showing a driving method of a touch sensor and a touch sensing method according to Embodiment 4 of the present invention.

S 201214259 FIG. 12 is a view showing an example of the electrode composition of the touch sensor according to Embodiment 5 of the present invention, wherein FIG. 12(A) shows an example of the Y detecting electrode layer of the touch sensor of Embodiment 5. FIG. 12(B) is a plan view showing an example of a pupil detecting electrode layer of the touch sensor of Embodiment 5. Figure 13 is a view showing the composition of a touch sensor according to Embodiment 5 of the present invention. The 13th (Α) diagram shows the planar structure of the electrode layer 17 in the touch sensor 19 of the embodiment 5, and the 13th (8) diagram shows the perspective view of the entire touch sensor 19 of the embodiment 5. Fig. 14 is a cross-sectional structural view showing an example of a touch display device according to a sixth embodiment of the present invention. [Main component symbol description] 10, 19~ touch sensor; 11, 15~X detection electrode; 12, 16~γ detection electrode; 13~X electrode layer; 14~Υ electrode layer; 17~ electrode layer 18~glass cover; ~ touch sensor controller; 21~ touch information detection device; 22~ reading device; 23~ timing control device; 24~ memory device;

S 28 201214259 25~ touch information computing device; 30~ sensor glass; 40~ color filter substrate; 50~ thin film transistor array substrate; 60~ display device driving circuit; 70, 71~ touch display device; 81~ positive polarity noise; 82~ negative polarity noise; 91, 92~ touch information; 101, 102~ checkout data; 103~ calculate data. 29 /

Claims (1)

201214259 VII. Patent Application Range: 1. A touch display device, comprising an AC-driven touch sensor for displaying touch information of an input interface, the second/set includes: The information is detected by the farm, and the frame period of the reading and exposing device of the touch sensor is synchronously started, and each control information is detected; and the touch of the work is performed; the touch information is calculated for the continuous, for continuous The average of the even number of frames in the 5th week of the touch, the get-touch information statistics. ^ 2. For the touch display device described in the patent application, the touch information statistics are the moving average of the touch information. 3. The touch display device according to claim 2, wherein the reading operation is an operation of scanning a matrix configuration electrode for detecting the touch information one by one. The touch display device of the above, wherein the touch sensing β疋 electrostatic capacitive touch sensor. 5. As shown in the application scope of the patent, the touch display device is an in-cell touch display device. /, Μ Touch π pats the touch display device of the first item of the patent 26, wherein the touch display device is an external touch display device. 7. If you apply for a patent scope! The touch element described in the sensor is a separate component on the sensor glass. The sensation _ glass is placed on the display device. 8. If the touch display is described in the application (4), the S 30 201214259 read action is to read the input interface in a plurality of cycles during the frame period = the touch shell. The action of fl 'the touch information detecting means detects a plurality of the touch information in each of the frames. The touch display device of claim 8, wherein the touch information detected by each frame period of the peripheral device S is different from the average of the touch information detected in the same order. : Such as Shen. In the touch display device described in item j of the monthly patent range, the even-numbered frame periods of the consecutive frames are two frame periods before and after. The touch display of any one of the above-mentioned items of the U.S. Patent No. 5, the display device is a liquid crystal display device. The touch-sensing device of the touch display device has a touch sensor, and the driving method comprises: a step of sounding out the sound of the touch sensor and a reading period of the touch sensor The control; ί:] Synchronization start, detecting the touch-to-touch step of each frame period's average for the consecutive even-numbered frame periods Information statistics. ^ 动方! I. The driving average of the touch display device as described in item 12 of the patent application scope, and the average value of the touch information is the average of the touch information as described in the item The touch display display _ _ configuration 2 =: one by one scanning for detecting the touch information 15. The touch display device according to claim 12 of the patent application. The sensor is an electrostatic capacitive touch sensor. 16. The driving of the touch display device according to claim 12, wherein the reading operation is performed in the "-" frame (four) multiple cycles: the second interface of the touch information action, The touch information is detected by ^, and a plurality of the touch information of each frame are loosened. The moving side: as in the range!" The touch display device of the above-mentioned item 6 detects the plurality of signals to calculate the step, and calculates the moving side in the same order for each frame period. The method for driving a touch display device according to the above-mentioned item (4), wherein the continuous even-numbered frame period is two front and rear images, and one of the 18 items is as follows: 19. A recording medium that can be read by a computer for implementing a driving method of a touch display device as disclosed in claim 12 of the patent scope. , 12