Touch input device

Abstract

To prevent a phenomenon in which touch driving and sensing time increase due to additional firmware calculations of a processor, and prevent a reduction in operation efficiency and an increase in power consumption.SOLUTION: First electrodes are arranged in a first direction. Second electrodes are arranged along a second direction different from the first direction and include a second-a electrode pattern disposed directly adjacent to the first electrode and a second-b electrode pattern spaced a predetermined distance from the first electrode instead of being directly adjacent thereto. A control section matches a plurality of codes that are programmed by a built-in firmware with a plurality of addresses, respectively, and store the matched codes in a codebook table, receives application of the plurality of codes stored according to a scan mode to generate a driving signal and output the generated driving signal to the plurality of second electrodes, and receives a sensing signal output from the plurality of first electrodes to detect a touch position of an object located on a touch sensor.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a touch input device, and more particularly to a touch scanning device. Various code values ​​are stored in the codebook in advance depending on the touch mode. This invention relates to a touch input device that is capable of various touch sensing operations using only a controller. [Background technology]

[0002] A wide variety of input devices are utilized to operate a computing system. For example, buttons, keys, joysticks, and touchscreens. Input devices such as touch screens are used. As a result, touch screens are increasingly being used to interact with computing systems.

[0003] A touch sensor is a type of information input device that is attached to a display panel. As an example, the touch sensor may be attached to one side of the display panel. Or it can be manufactured as an integrated unit with the display panel. While viewing the image displayed on the touch panel screen, users can touch the touch sensor to input information. You can exert your power.

[0004] FIG. 1 is a diagram schematically illustrating a conventional octa-type stacked structure.

[0005] OCTA, a type of touchscreen panel technology, is a technology that is compatible with On Cell Touch AMOLED. As shown in Figure 1, the touch sensor is placed on top of the AMOLED display cell. It is a type of touch screen panel (TSP) that has direct deposition of a .

[0006] In other words, smartphone / tablet touchscreen functionality is built into the OLED panel. Since there is no tempered glass between the cell and the touch sensor, it is a technology that can be used in existing general applications. It has the effect of providing greater clarity than standard TSP.

[0007] Y-OCTA has developed a touchscreen with a touch sensor directly deposited on top of the cell. Samsung Display's flexible OLED panel is a key element in the OCTA series. The name comes from adding the Y to the brand name "YOUM."

[0008] Y-OCTA technology is used in the thin film encapsulation (TFE) process of OLED manufacturing. It is used as a touch sensor between the organic material for thin film encapsulation and the polarizer. The aluminum metal mesh sensor used in the touch screen is patterned to create a touch screen. This is what we do.

[0009] Y-OCTA is a polarizer that is attached close to the cover window and has a curved edge. This can solve the visibility problem that occurs with the support film. By removing the RT film, the panel thickness is reduced and the lamination process is eliminated. In short, the price can be reduced.

[0010] The touch input device with conventional wide-octa touch screen panel is LGM (Low Gro und Mass) situation. The problem is that the touch sensor is driven with a single layer or a double layer. When the electrode and the receiving electrode are implemented, a touch input device having the touch sensor mounted thereon is used. When a specific touch occurs without the user holding the device by hand (floating state), the touch input The signal that should be detected normally from the standpoint of the power device disappears or is detected. This is a phenomenon in which a single signal is split and perceived as a signal touched at two or more points.

[0011] On the other hand, a codebook is a set of data that is stored in advance for encoding and / or decoding. A sufficiently large number of indexed collections of predetermined code vectors are It is used to understand various patterns.

[0012] In conventional touch input devices, the driving and sensing means use a codebook. If you do not do this, you may not be able to create the code format you want or the code may be fixed. There is a limitation in that only the standard format can be used.

[0013] To solve this problem, firmware must step in. This eliminates the need for additional firmware operations each time the device is driven or whenever a code change is required. calculations will be necessary.

[0014] In this case, it becomes unavoidable to intervene in the processor, such as the central processing unit (CPU). This has resulted in a problem of longer touch driving and sensing times for the touch input device. .

[0015] Also, since the central processing unit must operate during code changes, noise flows Other operations such as filter algorithm execution and coordinate calculations cannot be performed, resulting in a decrease in operating efficiency. This will eventually lead to increased power consumption and slower reporting rates. There were some problems that led to this. Summary of the Invention [Problem to be solved by the invention]

[0016] The object of the present invention is to provide a touch input device that requires additional firmware for the processor each time it is activated. Prevents the phenomenon of touch driving and sensing time becoming longer due to software calculations, and reduces the decrease in operating efficiency Another object of the present invention is to provide a touch input device that can prevent an increase in power consumption. [Means for solving the problem]

[0017] The touch input device according to the embodiment of the present invention includes a touch sensor and a control unit for controlling the touch sensor. a control unit for controlling the touch sensor to include a plurality of first electrodes and a plurality of second electrodes; The first electrodes are arranged along a first direction, and the second electrodes are arranged along a second direction different from the first direction. and a second electrode pattern disposed adjacent to the first electrode. a second electrode pattern disposed at a predetermined distance from the first electrode, and The memory control unit stores a plurality of codes programmed by the built-in firmware in a plurality of Match each address and store it in the codebook table, then switch to scan mode. Therefore, the stored codes are applied to generate drive signals to drive the second electrodes. and receiving sensing signals output from the plurality of first electrodes and The touch position of an object placed on the screen is detected.

[0018] The plurality of first electrodes of the touch input device according to the embodiment of the present invention are connected to the plurality of second electrodes. It is characterized by being arranged vertically.

[0019] The touch input device according to the embodiment of the present invention has a plurality of codes already stored therein. a touch code that outputs a predetermined code to the plurality of second electrodes by touch scanning among the codes; The device further includes a controller.

[0020] The touch controller of the touch input device according to the embodiment of the present invention includes: The touch scanning electrode is configured to apply a driving signal to at least two second electrodes of the electrodes. the control unit for performing the touch scan; and the touch scan in response to the control of the control unit. A driving and sensing element that matches a predetermined code to the at least two second electrodes and outputs the code. The present invention is characterized by including a sensing unit.

[0021] The driving and sensing unit of the touch input device according to an embodiment of the present invention is The plurality of codes programmed by the built-in firmware are stored in a plurality of addresses. A codebook table that stores the code and the previous code according to the scan mode. The stored codes are applied to generate drive signals and output the drive signals to the second electrodes. a driving signal generating unit for generating a driving signal for the first electrodes; and a plurality of sensing units for receiving sensing signals output from the plurality of first electrodes. The present invention is characterized by including a sensor.

[0022] A touch input device according to an embodiment of the present invention includes a display including a plurality of scan lines. a panel, a plurality of drive electrodes, and a plurality of receiving electrodes arranged in a direction perpendicular to the plurality of drive electrodes; a touch sensor including a pole and a plurality of codes already stored, the plurality of codes being selected by the touch sensor; a touch controller that outputs a predetermined code to the plurality of drive electrodes by a touch sensor; It is characterized by including.

[0023] The touch controller of the touch input device according to the embodiment of the present invention includes: The touch scanning electrode is provided so that a driving signal is applied to at least two driving electrodes of the touch scanning electrode. a control unit for performing the touch scan; and a control unit for performing the touch scan in response to the control of the control unit. A driving and sensing device that matches the code to the at least two driving electrodes and outputs the code. and a ring portion.

[0024] The driving and sensing unit of the touch input device according to an embodiment of the present invention is The plurality of codes programmed by the built-in firmware are stored in a plurality of addresses. A codebook table that stores the code and the previous code according to the scan mode. A drive signal is generated in response to the application of the stored codes and output to the drive electrodes. a driving signal generating unit for generating a driving signal for the plurality of receiving electrodes; and a plurality of sensing units for receiving sensing signals output from the plurality of receiving electrodes. and a sensor.

[0025] The driving and sensing unit of the touch input device according to an embodiment of the present invention is The plurality of addresses and the data matching each address are displayed in a check table. The digital signal processing device further includes a first register for temporarily storing the input data.

[0026] The control unit of the touch input device according to the embodiment of the present invention is A start codebook address is set when scanning according to the scan mode, and the plurality of A processor that programs the code and a host that processes the data The external serial interface transmits data to the external device, and the data is input or output via the general-purpose input / output unit. and a second register for temporarily storing the data.

[0027] The control unit of the touch input device according to the embodiment of the present invention may perform the touch scan on the plurality of The method is characterized in that the process is performed multiple times in sequence for all of the driving electrodes.

[0028] Each of the driving signals of the touch input device according to the embodiment of the present invention is A vector value expressed by one or more of -1, 0, and 1 is a value representing an individual one of the plurality of drive electrodes. It is characterized by a number of consecutive

[0029] The processor of the touch input device according to the embodiment of the present invention is Each time the touch is activated in the touch panel, the code is read from the codebook table. The codebook address is incremented for each time slot.

[0030] The touch input device according to the embodiment of the present invention includes a display with the plurality of scan lines. Gate drive that outputs scan signals in sequence to control the drive timing of multiple sub-pixels a circuit for receiving video data and converting the video data into a data voltage in an analog form; a gate driving circuit for transmitting the video data and a data driving circuit for driving the gate driving circuit and the data driving circuit; and a display control unit that controls the display.

[0031] The display panel of the touch input device according to the embodiment of the present invention is and a plurality of data lines arranged perpendicular to the scan lines, The plurality of sub-pixels are located in the area where the scan line and the plurality of data lines intersect. It is characterized by:

[0032] The data driving circuit of the touch input device according to the embodiment of the present invention is The data voltage is applied to the plurality of pixels in accordance with the timing at which a scan signal is applied via the line. Each of the plurality of sub-pixels is outputted according to the image data. It is characterized by being driven to display brightness.

[0033] The codebook table of the touch input device according to the embodiment of the present invention is Encoding and decoding of data stored in memory or registers internal and external to the controller It is characterized in that it is a table that collects code vectors for [Effects of the Invention]

[0034] In the present invention, various codes are input according to the touch scan mode in the touch input device. By storing the code values ​​in the codebook in advance, various touches can be performed by the touch controller alone. Sensing becomes possible.

[0035] This allows the code to be changed whenever the touch input device is touched or when a code change is required. There is no need for additional firmware calculations for each touch input device. This reduces the sensing time.

[0036] In particular, the central processing unit is freed to perform other important operations while the code is being changed, The efficiency of the processing equipment is improved, power consumption is reduced, and the reporting rate is reduced. This will help prevent elephants. [Brief explanation of the drawings]

[0037] [Figure 1] FIG. 1 is a diagram schematically illustrating a conventional octa-type stacked structure. [Figure 2] FIG. 2 is a block diagram of a touch input device according to a first embodiment of the present invention. [Figure 3] FIG. 3 is a partial plan view of one embodiment of touch sensor 150 shown in FIG. [Figure 4] FIG. 4 is a plan view of the touch sensor shown in FIG. 3 separated into layers. [Figure 5] FIG. 5 is a diagram illustrating electrical connections between the plurality of receiving electrodes shown in FIG. [Figure 6] FIG. 6 is a plan view of a portion of another embodiment of touch sensor 150 shown in FIG. [Figure 7] FIG. 7 is a plan view of the touch sensor shown in FIG. 6 separated into layers. [Figure 8] FIG. 8 is a diagram illustrating electrical connections between the plurality of receiving electrodes shown in FIG. [Figure 9] FIG. 9 is a plan view of a portion of yet another embodiment of touch sensor 150 shown in FIG. [Figure 10] FIG. 10 is a plan view of the touch sensor shown in FIG. 9 separated into layers. [Figure 11] FIG. 11 is a plan view of a portion of yet another embodiment of touch sensor 150 shown in FIG. [Figure 12] FIG. 12 is a plan view of the touch sensor shown in FIG. 11 separated into layers. [Figure 13] FIG. 13 is a plan view of a portion of yet another embodiment of touch sensor 150 shown in FIG. [Figure 14]FIG. 14 is a block diagram of a touch input device according to a second embodiment of the present invention. [Figure 15] FIG. 15 is a partial plan view of one embodiment of the touch sensor 150' shown in FIG. [Figure 16] FIG. 16 is a partial plan view of another embodiment of the touch sensor 150' shown in FIG. [Figure 17] FIG. 17 is a partial plan view of yet another embodiment of touch sensor 150' shown in FIG. [Figure 18] FIG. 18 is a partial plan view of yet another embodiment of touch sensor 150' shown in FIG. [Figure 19] FIG. 19 is a partial plan view of yet another embodiment of touch sensor 150' shown in FIG. [Figure 20] 20A and 20B are diagrams for explaining multi-driving of the touch sensor 150 shown in FIG. [Figure 21] FIG. 21 is a block diagram of a touch controller within the touch input device shown in FIG. [Figure 22] FIG. 22 shows the output waveform of the driving signal generating unit in the driving and sensing unit shown in FIG. 21 and the corresponding codebook matrix. [Figure 23] FIG. 23 shows the output waveform of the driving signal generating unit in the driving and sensing unit shown in FIG. 21 and the corresponding codebook table. [Figure 24] FIG. 24 shows an output waveform of the driving signal generating unit operating according to exemplary values ​​of the codebook table in the driving and sensing unit shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0038] DETAILED DESCRIPTION OF THE INVENTION The following detailed description of the present invention illustrates specific embodiments in which the invention may be practiced. Reference is made to the accompanying drawings, which illustrate embodiments sufficient to enable one skilled in the art to practice the invention. The various embodiments of the present invention are different but not mutually exclusive. It should be understood that the particular form described herein does not necessarily have to be the same. The shape, structure, and characteristics may be modified in accordance with one embodiment without departing from the spirit and scope of the present invention. It should be understood that individual components within each disclosed embodiment may be embodied in other embodiments. It is understood that the location or arrangement of the components may be varied without departing from the spirit and scope of the present invention. Therefore, the detailed description below should not be taken in a limiting sense. Rather, the scope of the invention, once properly delineated, is as defined by the claims. The present invention is limited only by the appended claims, along with their full scope of equivalents. Like reference numbers refer to the same or similar functionality across various aspects.

[0039] The touch input device according to various embodiments of the present document may be used as an electronic device, e.g., a smartphone. Smartphones, tablet personal computers, vehicle displays Playing devices, mobile phones, video phones, e-book readers reader), laptop PC (laptop personal computer), netbook computer (netbook computer), mobile medical device, camera, or wearable device ( The device may include at least one of the following:

[0040] FIG. 2 is a block diagram of a touch input device according to a first embodiment of the present invention, The display device includes a touch panel 100, a touch controller 200, and a display controller 300.

[0041] The display panel 100 includes a touch sensor 150, and a touch controller 200 drives and The display controller 300 includes a sensing unit 210 and a control unit 220. The display controller 300 includes a gate driving circuit 310. , a display control circuit 320, and a data driving circuit 330.

[0042] 3(a) and 3(b) are diagrams for explaining the multi-driving of the touch sensor 150 shown in FIG. This is a drawing of the

[0043] The operation of the touch input device according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 3. And so it goes:

[0044] The touch controller 200 controls the touch sensor 150 .

[0045] The touch controller 200 sequentially supplies drive signals to the plurality of drive electrodes of the touch sensor 150. Alternatively, a predetermined drive signal is simultaneously supplied to at least two or more of the plurality of drive electrodes. The former is called the sequential drive method, and the latter is called the multi-drive method.

[0046] The touch controller 200 receives the sensing signals output from the plurality of receiving electrodes of the touch sensor 150. Here, the sensing signal includes a signal between each receiving electrode and its adjacent driving electrode. It includes capacitance change information, LGM noise signal, and display noise signal. That's fine.

[0047] The touch controller 200 converts the sensing signals output from the plurality of receiving electrodes into analog digital signals. The sensor can be converted into a digital signal and output.

[0048] The touch controller 200 receives two of the sensing signals output from the plurality of receiving electrodes. The output signal can be converted into an analog / digital signal. Therefore, the touch controller 200 can Such a touch controller 200 may include a comparator and an ADC. Based on the signal, the presence or absence of a touch and / or the touch position can be detected.

[0049] In FIG. 2, the touch controller 200 is a module, unit, or chip. However, the touch controller 200 may be implemented as A drive signal is applied to the drive electrode of the touch sensor 150, and a sense signal is received from the receiving electrode of the touch sensor 150. a driving and sensing unit 210 that receives a signal; and a control unit 22 that controls the driving and sensing unit 210. Alternatively, the driving and sensing unit 210 and the control unit 220 may be integrated into one module. It may be embodied as a module, unit, or chip.

[0050] The touch input device shown in FIG. 2 may include a display panel 100 .

[0051] The display panel 100 has a number of scan lines (or gate lines) and a number of A number of data lines may be arranged. The scan lines and data lines may be arranged in the intersection area. A subpixel may be located.

[0052] The display panel 100 includes an active region in which a number of sub-pixels are arranged, and The touch input device may include an inactive area located outside the active area. The display screen can be configured as a device with a horizontal length equal to the vertical length. The shape may be rectangular with a longer length than the shorter length.

[0053] The touch input device shown in FIG. 2 uses a display A gate drive circuit 310 for driving various signal lines arranged on the play panel 100, a data The display controller 300 includes a display driver circuit 330 and a display control unit 320. That's fine.

[0054] The gate driving circuit 310 is controlled by the display control unit 320, and The display scan signal is output sequentially through the many scan lines arranged in 100. Therefore, the driving timing of the sub-pixels can be controlled.

[0055] The data driving circuit 330 receives video data from the display control unit 320 and The data driving circuit 330 can convert the scan line into an analog data voltage. The data voltage (Vdata) is applied according to the timing when the scan signal is applied through the input. Each sub-pixel outputs the brightness according to the video data. The display can be controlled to

[0056] The display control unit 320 sends various control signals to the gate driving circuit 310 and the data driving circuit 330. The gate driver circuit 310 and the data driver circuit 330 can be controlled by the voltage supplied to the driver circuit 310. The play control unit 320 may be configured separately from the control unit 220 shown in FIG. 2, or may be configured integrally with the control unit 220. This may also be done.

[0057] Referring to the following drawings, the touch sensor 150 according to the first embodiment of the present invention shown in FIG. Various embodiments will now be described in detail.

[0058] FIG. 3 is a partial plan view of one embodiment of touch sensor 150 shown in FIG.

[0059] FIG. 4 is a plan view of the touch sensor shown in FIG. 3 separated into layers.

[0060] FIG. 5 is a diagram illustrating electrical connections between the plurality of receiving electrodes shown in FIG.

[0061] 3 to 5, a touch sensor according to an embodiment of the present invention is It may be located on the panel or inside the display panel.

[0062] A touch sensor according to a first embodiment of the present invention includes a plurality of first electrodes and a plurality of second electrodes. Among the plurality of first electrodes and the plurality of second electrodes, the electrodes to which the drive signal is applied become drive electrodes, and the remaining The electrodes may be receiving electrodes.

[0063] In the following description, the plurality of first electrodes are the plurality of drive electrodes TX0, TX1, TX2, TX3, . . . and the plurality of second electrodes are a plurality of receiving electrodes RX0, RX1, RX2, RX3, RX4, . . .

[0064] The plurality of drive electrodes TX0, TX1, TX2, TX3, . . . are a 0th drive electrode TX0, a 1st drive electrode TX1, a 2nd drive electrode TX2, a 3rd drive electrode TX3, a 4th drive electrode TX4, a 5th drive electrode TX5, a 6th drive electrode TX6, a 7th drive electrode TX7, a 8th drive electrode TX8, a 9th drive electrode TX9 The plurality of drive electrodes TX0, TX1, TX2, TX3 may include a first drive electrode TX1, a second drive electrode TX2, and a third drive electrode TX3. 3, . . . correspond to the plurality of drive electrodes Tx0, Tx1, Tx2, .

[0065] The plurality of receiving electrodes RX0, RX1, RX2, RX3, RX4, . . . include a 0th receiving electrode RX0, a 1st receiving electrode RX1, The receiving electrode RX2 may include a second receiving electrode RX3, a third receiving electrode RX4, and a fourth receiving electrode RX5. The transmitting electrodes RX0, RX1, RX2, RX3, RX4, . . . correspond to the plurality of receiving electrodes Rx0, Rx1, Rx2, Rx3, Rx4, . . . shown in FIG. Corresponds to x3, Rx4, ...

[0066] The plurality of drive electrodes TX0, TX1, TX2, TX3, . . . are arranged along the second direction (or the vertical direction). Each of the plurality of receiving portions extends along a first direction (or a horizontal direction) perpendicular to the second direction. The receiving electrodes RX0, RX1, RX2, RX3, RX4, ... may be arranged along the second direction. On the other hand, the plurality of drive electrodes TX0, TX1, TX2, TX3, . . . are arranged along the first direction (or the horizontal direction). The plurality of receiving electrodes RX0, RX1, RX2, RX3, RX4, . . . are arranged in the second direction (or the vertical direction). The electrodes may be arranged along the direction of the arrows.

[0067] A plurality of drive electrodes TX0, TX1, TX2, TX3, ... and a plurality of receiving electrodes RX0, RX1, RX2, RX3, RX4, A predetermined capacitance may be formed between... Such capacitance may be It changes when a touch input occurs at or near that point. Detects the change in capacitance from the signal output from poles RX0, RX1, RX2, RX3, RX4, ... By doing so, it is possible to detect whether or not a touch has occurred and to detect a touch input.

[0068] Each of the plurality of drive electrodes TX0, TX1, TX2, TX3, . . . has a rectangular pattern extending in a first direction. A plurality of openings having a shape of a slit or a bar pattern and arranged adjacent to each other along a first direction. It may have a mouth O.

[0069] One receiving electrode may be disposed in each opening O. The shape of each opening O is such that adjacent openings are arranged The shape of the receiving electrode corresponds to the shape of the receiving electrode placed on the receiving electrode.

[0070] For example, as shown in FIG. 3, the openings O arranged at the left and right ends are The remaining part may have a diamond shape, and the openings located at the left and right ends may have a triangular shape. Although not shown in the drawings, all of the openings O may have a diamond shape. Alternatively, the plurality of openings O may have various shapes such as polygonal, rectangular, circular, or elliptical. That's fine.

[0071] Each of the receiving electrodes RX0, RX1, RX2, RX3, RX4, . . . is a plurality of receiving electrode patterns RX0a, RX0b, RX1 a, RX1b, RX2a, RX2b, RX3a, RX3b, RX4a, RX4b and connection patterns P0, P1, P2, P3, P4. Here, a plurality of receiving electrode patterns RX0a, RX0b, RX1a, RX1b, RX2a, RX2b, RX3a, RX3b , RX4a, RX4b, some of the receiving electrode patterns RX0a, RX1a, RX2a, RX3a, RX4a are shown in FIG. The remaining receiving electrode patterns RX 0b, RX1b, RX2b, RX3b, and RX4b correspond to the remaining receiving electrodes Rx0b, Rx1b, Rx2b, and Rx3b shown in FIG. ,... can be accommodated.

[0072] As shown in FIG. 4(a), a plurality of drive electrodes TX0, TX1, TX2, TX3, . . . and a plurality of receiving electrodes TX1, TX2, TX3, . . . The pole patterns RX0a, RX0b, RX1a, RX1b, RX2a, RX2b, RX3a, RX3b, RX4a, and RX4b are on the first layer (f They may be placed together in a single layer (first layer).

[0073] Here, a plurality of driving electrodes TX0, TX1, TX2, TX3, . . . arranged on the first layer Multiple receiving electrode patterns RX0a, RX0b, RX1a, RX1b, RX2a, RX2b, RX3a, RX3b, RX4a, RX4b may be embodied as a metal mesh.

[0074] As shown in FIG. 4(b), multiple connection patterns P0a, P0b, P1a, P1b, P2a, P2b, P3 P3a, P3b, P4a, and P4b may be arranged on a second layer. The second layer is the same as that shown in FIG. The first layer is a layer different from the first layer and is electrically insulated from the first layer. a, P0b, P1a, P1b, P2a, P2b, P3a, P3b, P4a, and P4b may be realized by metal mesh. The first layer in FIG. 4(a) may be placed on top of the second layer in FIG. 4(b), and vice versa. do.

[0075] The multiple receiving electrode patterns included in each receiving electrode are divided into at least two groups. The receiving electrode patterns of one group can be separated into the receiving electrode patterns of the other group. The electrode patterns are arranged alternately. The receiving electrode patterns of one group are arranged alternately with the receiving electrode patterns of the other groups. The receiving electrode patterns within one group are electrically isolated.

[0076] Here, the receiving electrode pattern in one group is the first receiving electrode pattern, and the other The receiving electrode pattern in the group may be named a second receiving electrode pattern.

[0077] The plurality of connection patterns included in each receiving electrode are the first receiving electrode pattern in one group. The first connection pattern electrically connects the electrodes to the second receiving electrodes in the other group. The second connecting pattern includes a connecting pattern.

[0078] For example, the 0th receiving electrode RX0 is made up of a plurality of receiving electrode patterns RX0a and RX0b and a plurality of connecting patterns The plurality of receiving electrode patterns RX0a and RX0b may be arranged alternately one by one along the second direction. The first group of receiving electrode patterns RX0a and the second group of receiving electrode patterns RX0b are arranged in the The first group of receiving electrode patterns RX0a and the second group of receiving electrode patterns RX 0b may be electrically isolated from each other.

[0079] The 0th connecting pattern P0 is a first connecting pattern that electrically connects the receiving electrode patterns RX0a of the first group. A second connecting pattern electrically connecting the connecting pattern P0a and the receiving electrode pattern RX0b of the second group. The signal P0b may be included.

[0080] The first receiving electrode RX1 includes a plurality of receiving electrode patterns RX1a and RX1b and a plurality of connecting patterns P1. The plurality of receiving electrode patterns RX1a and RX1b are arranged alternately one by one along the second direction. The first group of receiving electrode patterns RX1a and the second group of receiving electrode patterns RX1b are included. The receiving electrode pattern RX1a of the first group and the receiving electrode pattern RX1b of the second group are mutually They may be electrically isolated.

[0081] The first connecting pattern P1 electrically connects the receiving electrode patterns RX1a of the first group. A second connecting pattern electrically connects the connecting pattern P1a and the receiving electrode pattern RX1b of the second group. It may contain P1b.

[0082] The second receiving electrode RX2 includes a plurality of receiving electrode patterns RX2a and RX2b and a plurality of connecting patterns P2. The plurality of receiving electrode patterns RX2a and RX2b are arranged alternately one by one along the second direction. The first group of receiving electrode patterns RX2a and the second group of receiving electrode patterns RX2b are included. The receiving electrode pattern RX2a of the first group and the receiving electrode pattern RX2b of the second group are mutually They may be electrically isolated.

[0083] The second connecting pattern P2 is a first connecting pattern that electrically connects the receiving electrode patterns RX2a of the first group. A second connecting pattern electrically connects the connecting pattern P2a and the receiving electrode pattern RX2b of the second group. It may contain P2b.

[0084] The third receiving electrode RX3 includes a plurality of receiving electrode patterns RX3a and RX3b and a plurality of connecting patterns P3. The plurality of receiving electrode patterns RX3a and RX3b are arranged alternately one by one along the second direction. The first group of receiving electrode patterns RX3a and the second group of receiving electrode patterns RX3b are included. The receiving electrode pattern RX3a of the first group and the receiving electrode pattern RX3b of the second group are mutually They may be electrically isolated.

[0085] The third connecting pattern P3 is a first connecting pattern that electrically connects the receiving electrode patterns RX3a of the first group. A second connecting pattern electrically connecting the connecting pattern P3a and the receiving electrode pattern RX3b of the second group. It may contain P3b.

[0086] The fourth receiving electrode RX4 includes a plurality of receiving electrode patterns RX4a and RX4b and a plurality of connecting patterns P4. The plurality of receiving electrode patterns RX4a and RX4b are arranged alternately one by one along the second direction. The first group of receiving electrode patterns RX4a and the second group of receiving electrode patterns RX4b are included. The receiving electrode pattern RX4a of the first group and the receiving electrode pattern RX4b of the second group are mutually They may be electrically isolated.

[0087] The fourth connecting pattern P4 is a first connecting pattern that electrically connects the receiving electrode patterns RX4a of the first group. A second connecting pattern electrically connects the connecting pattern P4a and the receiving electrode pattern RX4b of the second group. It may contain P4b.

[0088] Multiple receiving electrode patterns RX0a, RX0b, RX1a, RX1b, RX2a, RX2b, RX3a, RX3b, RX4a, RX 4b are disposed adjacent to the plurality of openings O of the plurality of drive electrodes TX0, TX1, TX2, TX3, . . . One receiving electrode pattern is disposed adjacent to one opening O. Each receiving electrode pattern The shape of the corresponding opening corresponds to the shape of the corresponding opening.

[0089] In any receiving electrode RX1, the receiving electrode patterns in the first group arranged adjacent to each other are Between the receiving electrode pattern RX1a in the first group and the receiving electrode pattern RX1b in the second group, A portion of the drive electrode TX0 immediately adjacent to the periphery of the pattern RX1a and the receiving electrode patterns in the second group A portion of the drive electrode TX1 immediately adjacent to the periphery of the electrode RX1b is disposed together.

[0090] Any drive electrode TX0 is connected to one group of receiving electrode patterns RX0a, RX1a, RX2a, RX3a, and R The receiving electrode patterns RX0b, RX1b, and RX2b of the other groups are arranged immediately adjacent to the periphery of X4a. , RX3b, RX4b, the other driving electrode TX1 disposed immediately adjacent to the periphery of the arbitrary driving electrode T The receiving electrode patterns RX0a, RX1a, RX2a, RX3a, and RX4a of the one group are separated by X0. It is positioned so that

[0091] Each of the connection patterns P0a, P0b, P1a, P1b, P2a, P2b, P3a, P3b, P4a, and P4b is a second The conductive layer may have a bar pattern shape extending along the direction of the conductive layer. The conductive vias v may be disposed at both ends of each of the interconnection patterns.

[0092] In the 0th receiving electrode RX0, each of the first connecting patterns P0a is connected to the receiving electrodes of the first group. Two adjacent receiving electrode patterns RX0a are connected to each other through conductive vias v. a second receiving electrode pattern RX0a electrically connected to the first receiving electrode pattern RX0b and disposed between the two adjacent receiving electrode patterns RX0a; The receiving electrode pattern RX0b of the group is arranged so as to be overlapped below the receiving electrode pattern RX0b.

[0093] Each of the second connecting patterns P0b is connected to one of the receiving electrode patterns RX0b of the second group. Two adjacent receiving electrode patterns RX0b are electrically connected to each other through a conductive via v. The first group of receiving electrode patterns is arranged between two adjacent receiving electrode patterns RX0b. The signal line RX0a is placed so as to overlap the signal line RX0b.

[0094] The remaining receiving electrodes RX1, RX2, RX3, and RX4 have first connection patterns P1a, P2a, P3a, and P4a and second connection patterns P1a, P2a, P3a, and P4a. The turns P1b, P2b, P3b, and P4b are arranged in the same manner as previously described.

[0095] In the following, at least one of the plurality of drive electrodes TX0, TX1, TX2, and TX3 is used for driving. The operation when a driving signal is applied will now be described in detail.

[0096] For ease of understanding, the operation of the first receiving electrode RX1 and the operation of the driving and sensing unit 210 of FIG. The following will be explained in detail.

[0097] If the driving signals are applied to the driving electrodes TX0, TX1, TX2, and TX3 in sequence or simultaneously, the first series Two sensing signals are output through the connecting pattern P1. The first signal is output through the first connecting pattern P1a. The second signal is a signal output via the second connecting pattern P1b. do.

[0098] Therefore, first and second signals of two channels are generated for each of the receiving electrodes RX0, RX1, RX2, RX3, and RX4. The first and second signals are output simultaneously, and the first and second signals are output as shown in FIG. The signal may be output to the driving and sensing unit 210.

[0099] The first and second signals are generated by the drive electrodes TX0, TX1, TX2, TX3, . . . to which the drive signals are applied. Any one of them may be the active channel signal (or active received signal ARX), and the remaining The other one may be a dummy channel signal (or a dummy received signal DRX).

[0100] Specifically, the driving electrodes (TX0 and / or T) on which the receiving electrode patterns RX1a of the first group are arranged When a driving signal is applied to the first connecting pattern P1a, the first signal outputted through the first connecting pattern P1a is activated. The second signal output via the second connection pattern P1b becomes a dummy channel signal. It becomes a channel signal.

[0101] On the other hand, the drive electrodes (TX1 and / or TX3) on which the receiving electrode pattern RX1b of the second group is arranged When a driving signal is applied to the second connecting pattern P1b, the second signal output through the second connecting pattern P1b is activated. The first signal output via the first connection pattern P1a becomes a dummy channel signal. It becomes a signal.

[0102] For example, as shown in FIG. 3, the object (dotted line) corresponds to the first drive electrode TX1 and the first receive electrode TX2. When it is assumed that the electrode is in proximity to or in contact with the intersection point of the first drive electrode TX1, a drive signal is applied to the first drive electrode TX1. If the first receiving electrode RX1 is added, the receiving electrode pattern RX1b belonging to the second group of the first receiving electrode RX1 and the first driving electrode The capacitance (or mutual active capacitance) formed between TX1 and The second signal containing the capacitance change amount information is used as an active channel signal. and output via the second connection pattern P1b.

[0103] On the other hand, the first receiving electrode RX1 is formed between the receiving electrode patterns RX1a belonging to the first group. The capacitance (or dummy capacitance) also changes. The first signal including is output as a dummy channel signal via the first concatenation pattern P1a.

[0104] The driving and sensing unit 210 shown in FIG. 2 outputs the second signal via the second connecting pattern P1b. In the two signals, by subtracting the first signal output via the first connection pattern P1a, Receiving electrode pattern RX1b belonging to the second group and receiving electrode pattern RX1a belonging to the first group The cathode retransmission noise signal, LGM noise signal, and The play noise signal can be completely or largely cancelled out.

[0105] FIG. 6 is a plan view of a portion of another embodiment of touch sensor 150 shown in FIG.

[0106] FIG. 7 is a plan view of the touch sensor shown in FIG. 6 separated into layers.

[0107] FIG. 8 is a diagram illustrating electrical connections between the plurality of receiving electrodes shown in FIG.

[0108] The touch sensor according to another embodiment of the present invention shown in FIGS. 6 to 8 is similar to the touch sensor shown in FIGS. In comparison with the touch sensor according to the embodiment of the present invention shown, the plurality of receiving electrodes RX0′, RX1 There are differences between ',RX2',RX3',RX4'.

[0109] In particular, a plurality of receiving electrode patterns included in each of the receiving electrodes RX0', RX1', RX2', RX3', and RX4' The structure of the plurality of receiving electrode patterns RX1a' is different. The structure of the plurality of receiving electrode patterns RX1a' will be described in detail below. The remaining configuration will be replaced with the above-mentioned contents.

[0110] A plurality of receiving electrode patterns RX1 included in each of the receiving electrodes RX0', RX1', RX2', RX3', and RX4' a' has an opening O' therein and includes a dummy pattern DX1a placed inside the opening O'. Here, the dummy pattern DX1a may have a shape corresponding to the opening O'.

[0111] The dummy pattern DX1a is a connection pattern P0a, P0b, P1a, P1b, P2a, P2b, P3a, P3b, P4a , P4b. The dummy pattern DX1a is in an electrically floating state. Maintain a positive attitude.

[0112] The operation of the touch sensor according to the other embodiment of the present invention shown in FIGS. 6 to 8 is similar to that shown in FIGS. This is the same as the operation of the touch sensor according to the embodiment of the present invention shown in FIG.

[0113] Therefore, the touch sensor according to another embodiment of the present invention shown in FIGS. 6 to 8 may be used. The touch input device also detects various noises that may occur during touch sensing, such as cathode ray It can remove transmission noise signals, display noise, LGM noise, etc. This has the advantage of being able to do the following.

[0114] FIG. 9 is a plan view of a portion of yet another embodiment of touch sensor 150 shown in FIG.

[0115] FIG. 10 is a plan view of the touch sensor shown in FIG. 9 separated into layers.

[0116] The touch sensor according to still another embodiment of the present invention shown in FIGS. 9 and 10 is similar to that shown in FIGS. 5, the touch sensor according to the embodiment of the present invention has a plurality of receiving electrodes RX0 There are differences between ''RX1'', ''RX2'', ''RX3'', and ''RX4''.

[0117] In particular, a plurality of connection patterns P included in each receiving electrode RX0'', RX1'', RX2'', RX3'', RX4'' The arrangement structure and form of each connection pattern P0, P1, P2, P3, and P4 are different. The arrangement and configuration of P1, P2, P3, and P4 will be described in detail below, and the remaining configurations are as described above. We will replace it with the content below.

[0118] Each of the connection patterns P0', P1', P2', P3', and P4' is a first connection pattern P0a', P1a', and P2a ', P3a', P4a' and the second concatenation pattern P0b', P1b', P2b', P3b', P4b'.

[0119] Each of the first connection patterns P0a', P1a', P2a', P3a', and P4a' is a combination of two received signals of the first group. Although the polar patterns RX0a, RX1a, RX2a, RX3a, and RX4a are electrically connected, the two receiving polar patterns RX0a, RX1a, RX2a, RX3a, and RX4a are electrically connected. The second group of receiving electrode patterns RX0b, RX1b, RX2b, RX3b, and R are arranged between the electrode patterns. It is positioned so as not to overlap with X4b.

[0120] For example, at least a portion of each of the first connection patterns P0a', P1a', P2a', P3a', and P4a' is , so as not to overlap with the receiving electrode patterns RX0b, RX1b, RX2b, RX3b, and RX4b of the second group. The receiving electrode patterns RX0b, RX1b, RX2b, RX3b, and RX4b of the second group are The drive electrodes are arranged immediately adjacent to the receiving electrode patterns RX0b, RX1b, RX2b, RX3b, and RX4b of the It may be placed between TX0, TX1, TX2, and TX3.

[0121] On the other hand, the remaining portions may be arranged to overlap with the drive electrodes TX0, TX1, TX2, and TX3.

[0122] Each of the second connection patterns P0b', P1b', P2b', P3b', and P4b' is a connection pattern for two received signals of the second group. Although the polar patterns RX0b, RX1b, RX2b, RX3b, and RX4b are electrically connected, the two receiving polar patterns RX0b, RX1b, RX2b, RX3b, and RX4b are electrically connected. The first group of receiving electrode patterns RX0a, RX1a, RX2a, RX3a, and R are arranged between the electrode patterns. It is positioned so as not to overlap with X4a.

[0123] For example, at least a portion of each of the second connection patterns P0b', P1b', P2b', P3b', and P4b' is , so as not to overlap with the receiving electrode patterns RX0a, RX1a, RX2a, RX3a, and RX4a of the first group. The first group of receiving electrode patterns RX0a, RX1a, RX2a, RX3a, and RX4a are The drive electrodes are arranged immediately adjacent to the receiving electrode patterns RX0a, RX1a, RX2a, RX3a, and RX4a of the It may be placed between TX0, TX1, TX2, and TX3.

[0124] On the other hand, the remaining portions may be arranged to overlap with the drive electrodes TX0, TX1, TX2, and TX3.

[0125] Such a touch sensor according to yet another embodiment of the present invention is shown in FIGS. In comparison with the touch sensor according to the embodiment of the present invention, the first connecting pattern and the second group Between the receiving electrode patterns or between the second connecting pattern and the receiving electrode patterns of the first group This has the advantage of reducing the capacitance value.

[0126] Meanwhile, although not shown in a separate drawing, the dummy pattern DX1a shown in FIGS. 7 and 8 is This may also be applied to touch sensors according to other embodiments of the present invention.

[0127] FIG. 11 is a plan view of a portion of yet another embodiment of touch sensor 150 shown in FIG.

[0128] FIG. 12 is a plan view of the touch sensor shown in FIG. 11 separated into layers.

[0129] The touch sensor according to still another embodiment of the present invention shown in FIGS. 11 and 12 is similar to that shown in FIG. In comparison with the touch sensor according to the embodiment of the present invention shown in FIG. 5, the number of receiving electrodes R There is a difference between X0'',RX1'',RX2'',RX3''''.

[0130] In particular, each of the receiving electrodes RX0''', RX1''', RX2''', and RX3''' includes a plurality of receiving electrodes. Electrode patterns RX0a-1, RX0a-2, RX0b-1, RX0b-2, RX1a-1, RX1a-2, RX1b-1, RX1b-2, RX2a -1,RX2a-2,RX2b-1,RX2b-2,RX3a-1,RX3a-2,RX3b-1,RX3b-2 and multiple connection patterns P0 P1, P2 and P3 have different structures and arrangements.

[0131] Below, receiving electrode patterns RX0a-1, RX0a-2, RX0b-1, RX0b-2, RX1a-1, RX1a-2, RX1b-1 ,RX1b-2,RX2a-1,RX2a-2,RX2b-1,RX2b-2,RX3a-1,RX3a-2,RX3b-1,RX3b-2 and connected The structure and arrangement of turns P0'', P1'', P2'', and P3'' will be explained in detail. The above will be replaced with the above content.

[0132] Each receiving electrode RX0''', RX1''', RX2''', RX3''' has a plurality of receiving electrode patterns RX 0a-1,RX0a-2,RX0b-1,RX0b-2,RX1a-1,RX1a-2,RX1b-1,RX1b-2,RX2a-1,RX2a-2,RX 2b-1, RX2b-2, RX3a-1, RX3a-2, RX3b-1, and RX3b-2 are alternately arranged one by one along the second direction. The first group of arranged receiving electrode patterns RX0a-1, RX0a-2, RX1a-1, RX1a-2, RX2a-1, and RX2a-2 a-2, RX3a-1, RX3a-2 and the second group of receiving electrode patterns RX0b-1, RX0b-2, RX1b-1, RX1b-2 ,RX2b-1,RX2b-2,RX3b-1,RX3b-2.

[0133] First group receiving electrode patterns RX0a-1, RX0a-2, RX1a-1, RX1a-2, RX2a-1, RX2a-2, R X3a-1, RX3a-2 and the second group of receiving electrode patterns RX0b-1, RX0b-2, RX1b-1, RX1b-2, RX2b RX2b-1, RX2b-2, RX3b-1, and RX3b-2 may be electrically isolated from each other.

[0134] First group receiving electrode patterns RX0a-1, RX0a-2, RX1a-1, RX1a-2, RX2a-1, RX2a-2, R The first receiving electrode patterns RX0a-1, RX1a-1, RX2a-1, and RX3a-2 correspond to the second receiving electrode patterns RX0a-1, RX1a-1, RX2a-1, and RX3a-1, respectively. 2 receiving electrode patterns RX0a-2, RX1a-2, RX2a-2, and RX3a-2. First receiving electrode pattern RX0a-1 , RX1a-1, RX2a-1, RX3a-1 and the second receiving electrode patterns RX0a-2, RX1a-2, RX2a-2, RX3a-2 are, In the drive electrodes TX0 and TX2, two openings O are arranged adjacent to each other in the first direction. will be done.

[0135] Among the plurality of openings O of each of the drive electrodes TX0, TX1, TX2, and TX3, In the opening, one first or second receiving electrode pattern is arranged, and in the remaining opening, a plurality of receiving electrodes are arranged. The first group of receiving electrodes RX0''', RX1''', RX2''', and RX3''' a first group of receiving electrodes having one receiving electrode pattern different from a second receiving electrode pattern of the receiving electrode; The first receiving electrode patterns of the patterns are arranged together but spaced apart from each other.

[0136] Each of the connection patterns P0'', P1'', P2'', and P3'' corresponds to the first group of receiving electrode patterns R X0a-1, RX0a-2, RX1a-1, RX1a-2, RX2a-1, RX2a-2, RX3a-1, and RX3a-2 are electrically connected. First connection patterns P0a'', P1a'', P2a'', P3a'' and second group receiving electrode patterns RX0b-1, RX0b-2, RX1b-1, RX1b-2, RX2b-1, RX2b-2, RX3b-1, and RX3b-2 are electrically connected. The second connection patterns include P0b'', P1b'', P2b'', and P3b''.

[0137] Each of the first connection patterns P0a'', P1a'', P2a'', P3a'' and the second connection pattern P0 b'', P1b'', P2b'', and P3b'' are two adjacent receiving electrode panels for each group. It is constructed and arranged to connect turns in the shortest distance.

[0138] For example, each of the first connection patterns P0a'', P1a'', P2a'', P3a'' and the second connection patterns Turns P0b'', P1b'', P2b'', and P3b'' are adjacent turns in any one group. One end of one of the two receiving electrode patterns is located on one side of the lower end of the receiving electrode pattern. The other end may be connected to one side of the upper end of the remaining receiving electrode pattern. The remaining portion excluding the one end and the other end has a shape extending along a second direction, and and a receiving electrode pattern disposed between the other receiving electrode pattern. The largest cross-sectional area is the opening O of the driving electrode without overlapping with the receiving electrode patterns of other groups. They are arranged so that they overlap.

[0139] In addition, each of the first connection patterns P0a'', P1a'', P2a'', and P3a'' is a first group. The first receiving electrode pattern and the second receiving electrode pattern of the receiving electrode of the chip are electrically connected. Further including a receiving concatenation pattern, each of the second concatenation patterns P0b'', P1b'', and P2b'' , P3b'' is the first receiving electrode pattern and the second receiving electrode pattern of the second group The receiver further includes a receiving connection pattern for electrically connecting the lines.

[0140] Such a touch sensor according to yet another embodiment of the present invention is shown in FIGS. In comparison with the touch sensor according to the embodiment of the present invention, the first connecting pattern and the second group Between the receiving electrode patterns or between the second connecting pattern and the receiving electrode patterns of the first group The capacitance value can be reduced, and the resistance value of each connection pattern can also be reduced. There is a point.

[0141] FIG. 13 is a plan view of a portion of yet another embodiment of touch sensor 150 shown in FIG.

[0142] The touch sensor according to another embodiment of the present invention shown in FIG. 13 includes a plurality of drive electrodes TX 0 and a plurality of receiving electrodes RX0.

[0143] Each drive electrode TX0 includes diamond-shaped pattern portions arranged in one direction, A connecting pattern that connects two adjacent pattern portions of the pattern portions to each other. Includes parts.

[0144] Each receiving electrode RX0 has a first electrode portion RX0a and a second electrode portion RX0b arranged in a direction different from the one direction. The first electrode portion RX0a and the second electrode portion RX0b may have a triangular shape. One first electrode portion RX0a and one second electrode portion RX0b arranged in contact with each other are entirely made of diamond. It may have a shape.

[0145] The first electrode portion RX0a is arranged so as to be relatively closer to the driving electrode TX0 than the second electrode portion RX0b. The second electrode portion RX0b is positioned closer to the other driving electrodes than the first electrode portion RX0a. are arranged as follows.

[0146] The first electrode portion RX0a may be electrically connected via a plurality of conductive traces. RX0b may also be electrically coupled via multiple conductive traces.

[0147] Meanwhile, FIG. 14 is a block diagram of a touch input device according to a second embodiment of the present invention.

[0148] The touch input device shown in FIG. 14 is the same as the touch input device according to the first embodiment shown in FIG. In comparison, the following differences exist:

[0149] Specifically, the touch sensor 150' of the touch input device shown in FIG. 14 has electrodes of a predetermined shape. The predetermined electrodes include a plurality of first electrodes and a plurality of second electrodes.

[0150] In the touch sensor 150 shown in FIG. 2, a plurality of first electrodes are formed as a plurality of drive electrodes Tx0, Tx1, Tx2, , and the plurality of second electrodes become a plurality of receiving electrodes Rx0, Rx1, Rx2, ... as shown in FIG. In the touch sensor 150', the first electrodes are replaced by receiving electrodes Rx0, Rx1, Rx2, . . . As a result, the plurality of second electrodes become the plurality of drive electrodes Tx0, Tx1, Tx2, . . .

[0151] In other words, the touch sensor 150' shown in FIG. 14 is the same as the touch sensor 150 shown in FIG. In comparison, the multiple drive electrodes Tx0, Tx1, Tx2, ... are changed to multiple receive electrodes Rx0, Rx1, Rx2, ... Therefore, the multiple receiving electrodes Rx0, Rx1, Rx2, ... are replaced by multiple driving electrodes Tx0, Tx1, Tx2, ... That is why.

[0152] The plurality of first electrodes may be a plurality of driving electrodes as shown in FIG. 2, or may be a plurality of driving electrodes as shown in FIG. As described above, the number of receiving electrodes may be determined under the control of the control unit 220.

[0153] When the control unit 220 applies a driving signal to the first electrodes, the first electrodes are driven by the driving signals. When a drive signal is applied to the second electrodes, the second electrodes receive a plurality of received signals. It can be extreme.

[0154] The plurality of drive electrodes Tx0, Tx1, Tx2, . . . and the plurality of receive electrodes Rx0, Rx1, Rx2, . . . are respectively The drive electrodes Tx0, Tx1, Tx2, ... may be arranged so as to intersect with each other. , each of the receiving electrodes Rx0, Rx1, Rx2, ... may extend in a first axis direction different from the first axis direction. The first axis direction may be perpendicular to the second axis direction.

[0155] Some of the drive electrodes Tx0a, Tx1a, Tx2a, Tx3a, . . . among the plurality of drive electrodes Tx0, Tx1, Tx2, . . . are some even-numbered receiving electrodes Rx0, Rx2, Rx3, ... among the plurality of receiving electrodes Rx0, Rx1, Rx2, ... , and may be arranged to form a mutual capacitance Cm with the plurality of drive electrodes Tx0, The remaining drive electrodes Tx0b, Tx1b, Tx2b, Tx3b, . . . of Tx1, Tx2, . . . are connected to a plurality of receiving electrodes Rx0 , Rx1, Rx2, ... and the remaining odd-numbered receiving electrodes Rx1, Rx3, Rx5, Rx7, ... The capacitors may be arranged to form a capacitance Cm.

[0156] Some of the drive electrodes Tx0a, Tx1a, Tx2a, Tx3a, . . . among the plurality of drive electrodes Tx0, Tx1, Tx2, . . . are some even-numbered receiving electrodes Rx0, Rx2, Rx3, ... among the plurality of receiving electrodes Rx0, Rx1, Rx2, ... The remaining odd-numbered receiving electrodes Rx1, Rx4, Rx6, ... may be arranged immediately adjacent to each other. Rx3, Rx5, Rx7, . . . may not be immediately adjacent to each other, but may be arranged at a predetermined distance apart.

[0157] Here, some of the driving electrodes Tx0a, Tx1a, Tx2a, Tx3a, . . . and the remaining odd-numbered receiving electrodes At least one other electrode may be disposed between Rx1, Rx3, Rx5, Rx7, . . . The other electrodes may be some of the even-numbered receiving electrodes Rx0, Rx2, Rx4, Rx6, . . .

[0158] The remaining drive electrodes Tx0b, Tx1b, Tx2b, Tx3b, . . . of the plurality of drive electrodes Tx0, Tx1, Tx2, . . . are the remaining odd-numbered receiving electrodes Rx1, Rx3, Rx4, Rx5, Rx6, Rx7, Rx8, Rx9, Rx10, Rx11, Rx12, Rx13, Rx14, Rx15, Rx16, Rx17, Rx18, Rx19, Rx20, Rx21, Rx22, Rx23, Rx24, Rx25, Rx26, R Some receiving electrodes Rx0, Rx5, Rx7, ... may be arranged adjacent to each other, and may be even-numbered. Rx2, Rx4, Rx6, . . . may not be immediately adjacent to each other, but may be arranged at a predetermined distance apart.

[0159] Here, the remaining driving electrodes Tx0b, Tx1b, Tx2b, Tx3b, . . . and some receiving electrodes that are even-numbered At least one other electrode may be disposed between Rx0, Rx2, Rx4, Rx6, . . . The other electrodes may become the remaining odd-numbered receiving electrodes Rx1, Rx3, Rx5, Rx7, . . .

[0160] The drive signals applied to the remaining drive electrodes Tx0b, Tx1b, Tx2b, Tx3b, . . . are the same as those applied to some drive electrodes In the drive signals applied to Tx0a, Tx1a, Tx2a, Tx3a, etc., only the phase is inverted by 180 degrees. The signal may be a rotation drive signal.

[0161] For example, in the two drive electrodes Tx0a and Tx0b of the 0th drive electrode TX0, the drive voltage applied to Tx0b is The signal is an inverted drive signal that is the inverse of the drive signal applied to Tx0a.

[0162] The touch input device shown in FIG. 14 is configured such that all of the drive electrodes Tx0, Tx1, Tx2, Tx3 of the touch sensor 150′ are Multi-driving is possible by applying drive signals to Tx2, Tx3, etc. simultaneously. The advantage is that the display panel does not experience flicker problems even when the display is moving.

[0163] In addition, multi-driving of all drive electrodes Tx0, Tx1, Tx2, Tx3, etc. is possible, This reduces the driving time for performing dual sensing. The turn-on time of the AFE can also be reduced, further reducing power consumption. can be reduced to

[0164] FIG. 15 is a partial plan view of one embodiment of the touch sensor 150' shown in FIG.

[0165] One embodiment of the touch sensor 150' shown in FIG. 15 is similar to the touch sensor 150 shown in FIG. The structure of the electrodes is the same as that of the first embodiment, but the drive electrodes TX0 and TX1 to which the drive signal is applied are , TX2, TX3, and TX4, and the receiving electrodes RX0, RX1, RX2, and RX3 from which the receiving signals are output are configured inversely. The difference is that

[0166] Referring to FIG. 15, the control unit 220 shown in FIG. 14 controls a plurality of driving electrodes TX0, TX1, TX2, TX3 , TX4, . . . are connected to the connection patterns P0, P1, P2, P3, P4, . . . , TX5, . . . . Here, the voltage applied to the second connection pattern P0b of each connection pattern P0 can be controlled as follows. The drive signal applied to the first connecting pattern P0a is an inverted drive signal whose phase is inverted by 180 degrees from the drive signal applied to the first connecting pattern P0b. This is the drive signal.

[0167] The control unit 220 shown in FIG. 14 calculates mutual capacitance from a plurality of receiving electrodes RX0, RX1, RX2, RX3, . . . A differential signal is output from the received signal, and a differential signal is output from the received signal. Then, the differential signal is integrated and output to a plurality of receiving electrodes RX0, RX1, RX2, and R. The received signals from X3, ... can be restored again, and the restored received signals The touch position of the object is calculated based on the information on the change in mutual capacitance with the sign processed. It can be determined.

[0168] FIG. 16 is a partial plan view of another embodiment of the touch sensor 150' shown in FIG.

[0169] Another embodiment of the touch sensor 150' shown in FIG. 16 is similar to the touch sensor 150 shown in FIG. The structure of the electrodes is the same as that of the embodiment of FIG. 1, but the driving electrodes to which the driving signal is applied and the receiving electrodes are different. The difference is that the electrodes from which the signal is output and the receiving electrodes are configured inversely.

[0170] Referring to FIG. 16, the control unit 220 shown in FIG. 14 controls a plurality of driving electrodes TX0′, TX1′, TX2′, T A predetermined drive signal is simultaneously applied to the connection patterns P0, P1, P2, P3, P4, ... of X3', TX4', ... Here, it is possible to control the second connection pattern P0b of each connection pattern P0. The drive signal applied to the first connecting pattern P0a has a phase that is inverted by 180 degrees from the drive signal applied to the first connecting pattern P0b. This is an inverted drive signal.

[0171] The control unit 220 shown in FIG. 14 calculates mutual capacitance from a plurality of receiving electrodes RX0, RX1, RX2, RX3, . . . A differential signal is output from the received signal, and a differential signal is output from the received signal. You can exert your power.

[0172] Then, the differential signals are integrated to receive signals from a plurality of receiving electrodes RX0, RX1, RX2, RX3, . . . The received signal can be restored again, and the restored received signal can be processed to obtain a phase signal. Based on the information on the change in mutual capacitance, the touch position of the object can be determined. do.

[0173] FIG. 17 is a partial plan view of yet another embodiment of the touch sensor 150' shown in FIG. .

[0174] Yet another embodiment of the touch sensor 150' shown in FIG. 17 is similar to the touch sensor shown in FIG. The structure of the electrodes is the same as that of the other embodiment of the sensor 150, but the drive signal is applied to the electrodes. The difference is that the driving electrodes and the receiving electrodes from which the received signal is output are configured in reverse. .

[0175] Referring to FIG. 17, the control unit 220 shown in FIG. 14 controls a plurality of driving electrodes TX0'', TX1'', TX2'' , TX3'', TX4'', ... are simultaneously connected to the connection patterns P0', P1', P2', P3', P4', .... Here, the second connection pattern of each connection pattern P0′ can be controlled so that a signal is applied. The driving signal applied to the first connecting pattern P0b has a phase difference of 180° with the driving signal applied to the first connecting pattern P0a. This is an inverted drive signal that is inverted once.

[0176] The control unit 220 shown in FIG. 14 calculates mutual capacitance from a plurality of receiving electrodes RX0, RX1, RX2, RX3, . . . A differential signal is output from the received signal, and a differential signal is output from the received signal. You can exert your power.

[0177] Then, the differential signals are integrated to receive signals from a plurality of receiving electrodes RX0, RX1, RX2, RX3, . . . The received signal can be restored again, and the restored received signal can be processed to obtain a phase signal. Based on the information on the change in mutual capacitance, the touch position of the object can be determined. do.

[0178] FIG. 18 is a partial plan view of yet another embodiment of the touch sensor 150' shown in FIG. .

[0179] Yet another embodiment of the touch sensor 150' shown in FIG. 18 is similar to the touch sensor shown in FIG. The structure of the electrodes is the same as that of the sensor 150, but the drive signal is applied to the electrodes. The difference is that the drive electrodes that receive the received signal and the receiving electrodes that output the received signal are configured in reverse. do.

[0180] Referring to FIG. 18, the control unit 220 shown in FIG. 14 controls a plurality of driving electrodes TX0''', TX1''', and TX2 A predetermined drive signal is simultaneously applied to the connection patterns P0, P1, P2, P3, ... of ', TX3', ... Here, the second connection pattern of each connection pattern P0'' can be controlled to be applied. The driving signal applied to the first connecting pattern P0b is 180 degrees out of phase with the driving signal applied to the first connecting pattern P0a. This is an inverted drive signal.

[0181] The control unit 220 shown in FIG. 14 calculates mutual capacitance from a plurality of receiving electrodes RX0, RX1, RX2, RX3, . . . A differential signal is output from the received signal, and a differential signal is output from the received signal. You can exert your power.

[0182] Then, the differential signals are integrated to receive signals from a plurality of receiving electrodes RX0, RX1, RX2, RX3, . . . The received signal can be restored again, and the restored received signal can be processed to obtain a phase signal. Based on the information on the change in mutual capacitance, the touch position of the object can be determined. do.

[0183] FIG. 19 is a partial plan view of yet another embodiment of the touch sensor 150' shown in FIG. .

[0184] Yet another embodiment of the touch sensor shown in FIG. 19 is the same as the touch sensor shown in FIG. Although the structure of the electrodes is the same as that of the other embodiment, the drive electrodes to which the drive signal is applied are The difference is that the electrodes from which the received signals are output are opposite in configuration.

[0185] Referring to FIG. 19, the touch controller 200 shown in FIG. 14 is configured to Control is performed so that a predetermined drive signal is simultaneously applied to the first drive electrode portion Tx0a and the second drive electrode portion Tx0b. It is possible.

[0186] Here, the drive signal applied to the first drive electrode unit Tx0a is applied to the second drive electrode unit Tx0b. This is an inverted drive signal whose phase is inverted by 180 degrees from the drive signal.

[0187] The touch controller 200 shown in FIG. 14 includes a plurality of receiving electrodes RX0, RX1, RX2, RX3, . . . a reception signal having information on the amount of change in mutual capacitance from the A differential signal can be output.

[0188] Then, the differential signals are integrated to receive signals from a plurality of receiving electrodes RX0, RX1, RX2, RX3, . . . The received signal can be restored again, and the restored received signal can be processed to obtain a phase signal. Based on the information on the change in mutual capacitance, the touch position of the object can be determined. do.

[0189] 20(a) and 20(b) are diagrams for explaining the multi-driving of the touch sensor 150 shown in FIG. This is a drawing of the

[0190] FIG. 21 is a block diagram of a touch controller in the touch input device shown in FIG. 2 includes a driving and sensing unit 210 and a control unit 220.

[0191] The driving and sensing unit 210 includes a codebook table 211, a first register 212, a DMA 213, a driving The control unit 220 includes a processor 221, an external It includes a serial interface 222 , a general-purpose input / output unit 223 , and a second register 224 .

[0192] FIG. 22 shows the output waveform of the driving signal generating unit in the driving and sensing unit shown in FIG. 21 and the is the codebook matrix corresponding to

[0193] FIG. 23 shows the output waveform of the driving signal generating unit in the driving and sensing unit shown in FIG. 21 and the is a codebook table corresponding to

[0194] FIG. 24 shows an example of a codebook table in the driving and sensing unit shown in FIG. 10 is an output waveform of a drive signal generating unit that operates in accordance with the

[0195] 20 to 24, the operation of a touch controller according to an embodiment of the present invention will be described. To clarify, it is as follows.

[0196] As shown in FIG. 20(a), the multi-driving of the touch sensor 150 shown in FIG. In the first time period, predetermined drive signals are simultaneously applied to the four drive electrodes TX0, TX1, TX2, and TX3 (Touch). h Scan 1), and in the second time period after the first time period, the other four driving electrodes Tx4, Tx5, Tx6, The driving signal is simultaneously applied to Tx7 (Touch Scan 2), and the third time period after the second time period is In between, the driving signals are simultaneously applied to the other four driving electrodes Tx8, Tx9, Tx10, and Tx11 (Touch Scan 3) can be done.

[0197] In addition, in the fourth time period after the third time period, the other four driving electrodes Tx12, Tx13, and Tx1 4, Tx15 are simultaneously applied with the driving signal (Touch Scan 4), and the fifth time period after the fourth time period is In the interval, the drive signal is simultaneously applied to the other four drive electrodes Tx16, Tx17, Tx18, and Tx19. (Touch Scan 5) method.

[0198] In FIG. 20(a), each touch scan area is denoted by Therefore, the four drive electrode regions to which four drive signals are simultaneously applied during the same time period are This is what is displayed.

[0199] In FIG. 20(b), the voltage is applied simultaneously to four drive electrodes in each touch scan. Each of the drive signals is an example of a drive signal that is generated during a predetermined time period (t1, t2, t3). , t4), the vector value expressed as one or more of -1, 0, and 1 is the number of the driving electrodes. It may be continuous.

[0200] For example, in the first time section t1, the drive electrodes TX0, TX1, TX2, and TX3 are assigned a (1, 1, 1, -1) vector. drive signals having a value of 0 are simultaneously applied to the drive electrodes TX0, TX1, TX2, TX3 is simultaneously applied with a drive signal having a vector value of (1,1,-1,1). The drive signals with vector values ​​(1, -1, 1, 1) are simultaneously applied to the drive electrodes TX0, TX1, TX2, and TX3. and applies a (-1,1,1,1) vector to the drive electrodes TX0, TX1, TX2, and TX3 in the fourth time section t4. At this time, the vector values ​​"1" and "2" are applied simultaneously. As shown in Figure 22, the vector value "-1" corresponds to each row that makes up the codebook matrix. As for the vector value of each column, a vector value of "1" maintains the phase of the drive signal, and a vector value of "- "1" inverts the phase of the drive signal.

[0201] In this embodiment, for ease of understanding, four time intervals and four drive electrodes are used as an example. This allows the codebook matrix to be stored in rows and columns of 5x5 or more. It is okay to do so.

[0202] As shown in FIG. 23, the codebook table 211 is stored in a firmware built in the processor 221. Multiple codes programmed by the software are matched with multiple addresses. and store it.

[0203] Here, the codebook table is stored inside and outside the touch controller, such as in SRAM, NVM, etc. The data can be stored in a table such as a memory or logic register. It is a collection of code vectors for encoding and / or decoding data. .

[0204] At this time, the multiple codes are generated by the binary (bin) of the driving signal scanned for each time slot. ary) data may be configured with predetermined bits.

[0205] The first register 212 (or SRAM) stores in advance the number of codes x (number of Txs x 2). That's fine.

[0206] For example, if the number of TXs is 20 and the number of codes is set to 128, the code length will be 128 x 40. .

[0207] 2 bits are assigned to each drive signal channel TX CH to control the code combination. It can be done.

[0208] For example, 00b: low level signal, 01b: pulse signal, 10b: high level signal. ) level signal, 11b: set by an inverse pulse signal and stored in the first register 212 It is okay to do so.

[0209] As shown in FIG. 23, the codebook table 211 already has "...11010101b" at address [0]. When the drive electrodes TX0, TX1, TX2, and TX3 are stored in Binary

[01] ,

[01] ,

[01] ,

[11] values ​​are applied.

[0210] This allows matching and setting to occur in the first register 212, which is a codebook register. As shown, a pulse, a pulse, a pulse, and a reverse pulse are applied to drive electrodes TX0, TX1, The same waveform as the top of Figure 23 is output to TX2 and TX3 in each time slot.

[0211] On the other hand, in FIG. 21, the first register 212 stores a plurality of addresses in the codebook table 211. The address and data matching each address are applied and temporarily stored.

[0212] DMA (Direct Memory Access) 213 transfers data to peripherals without going through the processing of the built-in processor 221. The device directly accesses the first register 212 to retrieve the required data.

[0213] The drive signal generator 214 receives the already stored code from the codebook table 211 according to each scan mode. The touch sensor generates a drive signal (or Tx signal) based on the stored codes. Output to 150 drive electrodes (Tx electrodes).

[0214] For example, the drive signal is such that two bits are assigned to each of the multiple drive electrode channels. When assuming that the signal is a low level signal, a pulse signal, a high level signal, and an inverse pulse signal, That's fine.

[0215] The plurality of sensing sensors 215 senses the touch of the user through the plurality of receiving electrodes and generates a sensing signal. Output.

[0216] The processor 221 is in scan mode via its built-in firmware. Therefore, set the start codebook address when scanning and In addition, the code block is programmed every time the first register 212 is controlled. The corresponding code can be read and written to the check table 211.

[0217] For example, every time touch driving is performed, the corresponding code is retrieved from the codebook table 211. The codebook address is automatically read and stored for each time slot. Increase the book address.

[0218] The code book table 211 stores various types of codes in advance according to the scan mode. It is possible to set the start codebook address when scanning.

[0219] The external serial interface 222 (ESI) is connected to the processor 221. The data calculated by the processor 221 is transmitted to the host, and the processor 221 receives data input from the host. It is an input / output interface that transmits

[0220] The general-purpose input / output unit 223 (GPIO) is a Time is controlled by the user.

[0221] The second register 224 temporarily stores data input or output via the general-purpose input / output unit 223. do.

[0222] Through this, the present invention can determine which address is scanned every time according to each scan mode. The drive signal information is stored by matching it to the corresponding address. This allows for a variety of operations, and allows for control of drive signals at the same time regardless of the number of drive signals. This becomes possible.

[0223] In this way, the present invention provides a touch input device with various codes according to the touch scan mode. By storing values ​​in the codebook in advance, the touch controller can handle a variety of touch sensors. This makes it possible to perform sensing.

[0224] This allows the code to be changed whenever the touch input device is touched or when a code change is required. There is no need for additional firmware calculations for each touch input device. This will shorten the sensing time.

[0225] In particular, the central processing unit can perform different critical operations when the code is changed, Increased efficiency of central processing units, reduced power consumption, and reduced reporting rates This will allow you to prevent the phenomenon.

[0226] The features, structures, effects, etc. described in the above embodiments are merely examples of the present invention. The present invention is not limited to only one embodiment. The features, structures, effects, etc. illustrated in the embodiments are within the scope of ordinary skill in the art. It can be combined or modified with other embodiments by those who have Therefore, all such combinations and modifications are included within the scope of the present invention. should be interpreted as such.

[0227] In addition, although the above description has focused on the embodiment, this is merely an example and the present invention The present invention is not limited to the above, and a person having ordinary skill in the art will be able to understand the present invention. Various modifications and applications not exemplified above are possible within the scope of the essential characteristics of the embodiment. For example, each component specifically shown in the embodiment may be modified. The differences between these modifications and applications are as follows: and the like. Probably. [Explanation of symbols]

[0228] 100, 100': Display panel 150, 150': Touch sensor 200: Touch controller 210: Driving and sensing unit 220: Control unit 300: Display controller 310: Gate drive circuit 320: Display control unit 330: Data driving circuit

Claims

1. A touch sensor; a control unit that controls the touch sensor, the touch sensor includes a plurality of first electrodes and a plurality of second electrodes; the first electrode is arranged along a first direction; The second electrode is disposed along a second direction different from the first direction and immediately adjacent to the first electrode. The second electrode pattern is arranged to overlap with the first electrode, but is not immediately adjacent to the first electrode, and is spaced a predetermined distance apart. and a spaced apart second electrode pattern; The control unit Multiple codes are programmed by the built-in firmware and stored in multiple addresses. Each is matched and stored in the codebook table. The stored codes are applied according to a scan mode, and a driving signal is generated. and outputting the sensing signals to the plurality of second electrodes, and receiving the sensing signals output from the plurality of first electrodes, The touch position of an object located on the touch sensor is detected. Touch input device.

2. The plurality of first electrodes are arranged in a direction perpendicular to the plurality of second electrodes. The touch input device of claim 1.

3. A plurality of codes are already stored, and a predetermined code is selected by touch scanning from the plurality of codes. a touch controller configured to output a code to the plurality of second electrodes; Further comprising: The touch input device of claim 1.

4. The touch controller a driving signal is applied to at least two of the second electrodes; The control unit that performs the touch scan; The predetermined code is written in the at least one of the plurality of touch-scanning buttons in response to the control of the control unit. a driving and sensing unit that outputs the signal by matching it with at least two second electrodes; characterized in that it comprises The touch input device of claim 3.

5. The driving and sensing unit The plurality of codes programmed by firmware built in the control unit a codebook table that stores a plurality of addresses by matching them; The stored codes are applied according to a scan mode, and a driving signal is generated. a drive signal generating unit that outputs a drive signal to the plurality of second electrodes; a plurality of sensing sensors receiving sensing signals output from the plurality of first electrodes; characterized in that it comprises 5. The touch input device of claim 4.

6. a display panel including a plurality of scan lines; a plurality of drive electrodes; and a plurality of receive electrodes arranged in a direction perpendicular to the plurality of drive electrodes. A touch sensor; A plurality of codes are already stored, and a predetermined code is selected by touch scanning from the plurality of codes. a touch controller that outputs a code to the plurality of drive electrodes; characterized in that it comprises Touch input device.

7. The touch controller A drive signal is applied to at least two of the plurality of drive electrodes. a control unit that performs the touch scan; The predetermined code is written in the at least one of the plurality of touch-scanning buttons in response to the control of the control unit. a driving and sensing unit that outputs signals by matching the signals to at least two driving electrodes; characterized in that it comprises The touch input device of claim 6.

8. The driving and sensing unit The plurality of codes programmed by firmware built in the control unit a codebook table that stores a plurality of addresses by matching them; The stored codes are applied according to a scan mode, and a driving signal is generated. a drive signal generating unit that outputs the drive signals to the plurality of drive electrodes; a plurality of sensing sensors receiving sensing signals output from the plurality of receiving electrodes; characterized in that it comprises 8. The touch input device of claim 7.

9. The driving and sensing unit The codebook table includes the plurality of addresses and data matching each address. The device further includes a first register for temporarily storing data applied thereto.

9. The touch input device of claim 8.

10. The control unit The start code book when scanning according to the scan mode through the firmware a processor for setting a quad address and programming the plurality of codes; an external serial interface for transmitting data calculated by the processor to a host; a second register for temporarily storing data input or output via the general-purpose input / output unit; characterized in that it comprises 8. The touch input device of claim 7.

11. The control unit performing the touch scan sequentially for all of the plurality of driving electrodes multiple times; Characterized by:

8. The touch input device of claim 7.

12. Each of the drive signals is A vector value expressed by one or more of -1, 0, and 1 for each predetermined time interval is The number of the driving electrodes is the same as the number of the driving electrodes.

8. The touch input device of claim 7.

13. The processor: Each time the driving and sensing unit performs a touch driving, the corresponding It features reading the code and incrementing the codebook address for each time slot. Let's say, 9. The touch input device of claim 8.

14. A display scan signal is sequentially output to the plurality of scan lines to form a plurality of sub-pictures. a gate drive circuit that controls the drive timing of the cells; A data driver receives video data and converts the video data into analog data voltages. A driving circuit, A display that transmits the video data and controls the gate driving circuit and the data driving circuit. A spray control unit; Further comprising: The touch input device of claim 6.

15. The display panel comprises: a plurality of data lines arranged in a direction perpendicular to the plurality of scan lines; further comprising The plurality of sub-lines are arranged in the area where the plurality of scan lines and the plurality of data lines intersect. The pixel is located 10. The touch input device of claim 9.

16. The data driving circuit In accordance with the timing at which scan signals are applied via the plurality of scan lines, A data voltage is output to each of the plurality of data lines, and a data voltage is output to each of the plurality of sub-pixels. The brightness is displayed according to the image data.

10. The touch input device of claim 9.

17. The codebook table is The code of data stored in the internal and external memory or registers of the touch controller A table that collects code vectors for encoding and decoding.

9. The touch input device of claim 8.

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