CN105023544B - Touch display module, driving method thereof and source driver - Google Patents

Abstract

A touch display module, a driving method thereof and a source driver are provided. The touch display module comprises a touch display panel and at least one source electrode driver. The source driver is coupled to a plurality of data lines of the touch display panel. The source driver respectively provides a plurality of pixel driving signals to the data lines in the display mode to drive the touch display panel to display corresponding images. The source driver groups the data lines into a plurality of groups in a touch mode, and outputs a plurality of touch driving signals to the groups in the touch mode, respectively. In the touch mode, the data lines belonging to the same group are provided with the same touch driving signal.

Description

Touch display module, its driving method and source driver

technical field

The present invention relates to an electronic device, and in particular to a touch display module, a driving method thereof, and a source driver.

Background technique

The gate driver and the source driver respectively drive the scanning lines (gate lines) and the data lines (source lines) of the liquid crystal display panel. The gate driver sequentially provides voltages to turn on the pixels of the scanning lines, and the source driver provides pixel driving signals related to image data to the data lines. Therefore, the source driver can drive the LCD panel to display corresponding images.

An in-cell touch display panel is to put a touch sensor into the display panel. Compared with the traditional touch display panel in which the touch panel and the display panel are bonded together, the in-cell touch display panel has advantages such as low thickness and high light transmittance. The touch driving circuit for detecting the touch event of the embedded touch display panel includes a transmitter (transmitter, Tx) and a receiver (receiver, Rx). The transmitter transmits touch driving signals to the driving lines of the embedded touch display panel, and the receiver senses the sensing lines of the embedded touch display panel. It is known that the touch driving circuit is independent of the source driver.

Contents of the invention

The invention provides a touch display module, its driving method and a source driver, which can use the source driver as a transmitter for touch detection.

Embodiments of the present invention disclose a touch display module, including a touch display panel and at least one source driver. The touch display panel has multiple data lines. The source driver is coupled to the data lines of the touch display panel. In the display mode, the source driver provides a plurality of pixel driving signals to the data lines to drive the touch display panel to display corresponding images. The source driver divides the data lines into a plurality of groups in the touch mode, and outputs a plurality of touch driving signals to the groups in the touch mode. In the touch mode, the data lines belonging to the same group are provided with the same touch driving signal.

The embodiment of the invention discloses a source driver, which includes a reference voltage bus, a plurality of driving channels and a voltage generating circuit. Each driving channel includes a latch and a first multiplexer. The latch is latched in display mode and outputs pixel data. The latch is latched in the touch mode and outputs group data. The control terminal of the first multiplexer is coupled to the output terminal of the latch for receiving pixel data or group data. Multiple input terminals of the first multiplexer are coupled to different wires of the reference voltage bus in a one-to-one manner. The output terminal of the first multiplexer outputs one of these pixel driving signals or one of these touch driving signals. Multiple output terminals of the voltage generating circuit are coupled to the conductors of the reference voltage bus in a one-to-one manner. Wherein, the voltage generation circuit provides a plurality of gamma voltages to the input terminals of the first multiplexers through the reference voltage bus in the display mode, and provides a plurality of touch panel signals to the first multiplexers through the reference voltage bus in the touch mode. input terminal of the device.

The embodiment of the invention discloses a driving method of a touch display module. The driving method includes: in the display mode, providing a plurality of pixel driving signals to a plurality of data lines of the touch display panel to drive the touch display panel to display corresponding images; in the touch mode, grouping the data lines into a plurality of groups; and outputting a plurality of touch driving signals to the groups respectively in the touch mode. In the touch mode, the data lines belonging to the same group are provided with the same touch driving signal.

In an embodiment of the present invention, the above-mentioned touch driving signal includes a sine signal or a cosine signal.

In an embodiment of the present invention, the aforementioned voltage generating circuit is a gamma voltage generating circuit.

In an embodiment of the present invention, the above-mentioned voltage generation circuit includes a gamma voltage generation circuit and a touch panel signal generation circuit. Multiple output terminals of the gamma voltage generating circuit are coupled to the conductors of the reference voltage bus in a one-to-one manner. The gamma voltage generation circuit provides a plurality of gamma voltages to the input terminal of the first multiplexer through the reference voltage bus in the display mode. The gamma voltage generating circuit is disabled in the touch mode. The output terminals of the touch panel signal generating circuit are coupled to the conductors of the reference voltage bus in a one-to-one manner. The touch panel signal generation circuit provides a plurality of touch panel signals to the input terminal of the first multiplexer through the reference voltage bus in the touch mode. The touch panel signal generating circuit is disabled in the display mode.

In an embodiment of the present invention, the above-mentioned touch panel signal generating circuit includes a touch panel signal generator and a plurality of second multiplexers. The touch panel signal generator generates the touch panel signals. A plurality of input terminals of any one of the second multiplexers is coupled to the touch panel signal generator to receive the touch panel signals. An output terminal of any one of the second multiplexers is coupled to one of the conductors of the reference voltage bus.

Based on the above, the touch display module and its driving method disclosed in the embodiments of the present invention can utilize the source driver as a transmitter for touch detection. The touch display module and its driving method disclosed in some embodiments of the present invention can group multiple data lines into multiple groups in the touch mode, and provide the same touch driving signal to the data lines belonging to the same group . Therefore, the source driver disclosed in the embodiment of the present invention can cope with the difference between the display resolution and the touch resolution. Furthermore, the grouped data lines (and/or drive channels) can transmit more power to facilitate touch detection.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail together with the accompanying drawings.

Description of drawings

FIG. 1 is a schematic circuit block diagram illustrating a touch display module according to an embodiment of the present invention.

FIG. 2 is a schematic block diagram illustrating a circuit of the source driver shown in FIG. 1 according to an embodiment of the present invention.

FIG. 3 is a schematic block diagram illustrating a circuit of the source driver shown in FIG. 1 according to another embodiment of the present invention.

[Description of labels]

100: touch display module 110: controller

120: Gate driver 130: Source driver

140: Touch Display Panel 150: Touch Receiver

131: Reference voltage bus

132_1, 132_2, 132_3, 132_4, 132_5, 132_6, 132_n: drive channel

133, 310: Voltage generation circuit 134: Shift register

211: First latch 212: Second latch

213: first multiplexer 214: buffer

220, 320: Gamma voltage generation circuit 230: Touch panel signal generation circuit

231: Touch panel signal generator 232: Second multiplexer

D_1, D_2, D_3, D_4, D_5, D_6, D_n: data lines

S_1, S_2, S_3, S_m: scan lines

detailed description

The term "coupling" used throughout the specification of the present invention (including claims) may refer to any direct or indirect means of connection. For example, if it is described that a first device is coupled to a second device, it should be interpreted that the first device can be directly connected to the second device, or the first device can be connected through other devices or some kind of connection means. indirectly connected to the second device. In addition, wherever possible, elements/components/steps using the same reference numerals in the drawings and embodiments represent the same or similar parts. Elements/components/steps using the same symbols or using the same terms in different embodiments can refer to related descriptions.

FIG. 1 is a schematic circuit block diagram illustrating a touch display module 100 according to an embodiment of the present invention. The touch display module 100 includes a controller 110 , at least one gate driver 120 , at least one source driver 130 , a touch display panel 140 and at least one touch receiver 150 . The touch display panel 140 has a plurality of data lines (such as data lines D_1 , D_2 , D_3 , D_4 , D_5 , D_6 , . . . , D_n) and a plurality of scan lines (such as scan lines S_1 , S_2 , S_3 , . . . , S_m). The gate driver 120 is coupled to the scan lines S_1 -S_m of the touch display panel 140 , and the source driver 130 is coupled to the data lines D_1 -D_n of the touch display panel 140 . The driving method of the touch display module 100 is as follows.

According to the control of the controller 110 , the gate driver 120 and the source driver 130 respectively drive the scan lines (gate lines) S_1 ˜ S_m and the data lines (source lines) D_1 ˜ D_n of the touch display panel 140 in the display mode. The gate driver 120 sequentially provides voltages to turn on the pixels of the scan lines S_1˜S_m, and the source driver 130 respectively provides a plurality of pixel driving signals related to image data to the data lines D_1˜D_n. Therefore, the source driver 130 can drive the touch display panel 140 to display corresponding images in the display mode. In the display mode, the touch receiver 150 can be disabled.

In the touch mode, the gate driver 120 can be disabled, and the touch receiver 150 can be enabled. The source driver 130 groups the data lines D_1 ˜ D_n into a plurality of groups in the touch mode. The source driver 130 respectively outputs a plurality of touch driving signals to these groups in the touch mode, wherein the data lines belonging to the same group are provided with the same touch driving signal in the touch mode. In other words, the source driver 130 can be used as a touch detection transmitter (transmitter, Tx) in the touch mode, and the data lines D_1˜D_n can be used as the driving lines of the touch panel in the touch mode. use. The above-mentioned touch driving signals include sine signals, cosine signals, clock pulses or other driving signals for touch detection. According to the touch driving signals of the data lines D_1˜D_n, the touch receiver (Rx) 150 can sense/read the information of the scanning lines S_1˜S_m in the touch mode, and transmit the information to the controller 110. By analyzing/calculating the information provided by the touch receiver 150 , the controller 110 can determine whether a touch event occurs on the touch display panel 140 and obtain a touch position on the touch display panel 140 .

For example, in some embodiments, the data lines D_1˜D_3 can be grouped into a first group to jointly transmit the first touch driving signal provided by the source driver 130 , and the data lines D_4˜D_6 can be grouped into The second group collectively transmits the second touch driving signal provided by the source driver 130 , and so on. In some other embodiments, the data lines D_1˜D_6 can be grouped into a first group to jointly transmit the first touch driving signal provided by the source driver 130 , and the data lines D_7˜D_12 (not shown) can be divided into The group is divided into a second group to jointly transmit the second touch driving signal provided by the source driver 130 . During the driving process of these groups, the touch receiver 150 can sense/read the information of these groups in the touch mode, and transmit the information to the controller 110 .

The grouping method of the data lines D_1˜D_n should not be limited to the above method. In other embodiments, the numbers of data lines in different groups may be different from each other. For example, the number of data lines in the group at the edge of the touch display panel 140 may be greater than the number of data lines in the group at the central area of the touch display panel 140 . In other embodiments, the touch display panel 140 may define a stylus touch area (for detecting touch events of the stylus pen) and a finger touch area (for detecting touch events of fingers). Due to the difference in touch area, the touch area of the stylus needs a higher touch resolution, while the touch area of a finger needs a lower touch resolution. Therefore, the number of data lines grouped in the finger touch area of the touch display panel 140 may be greater than the number of data lines grouped in the stylus touch area of the touch display panel 140 .

To sum up, the source driver 130 can be used as a touch detection transmitter in the touch mode, and the data lines D_1˜D_n can be used as the driving electrodes of the touch sensor in the touch mode. The scan lines S_1˜S_m can be used as sensing electrodes of the touch sensor in the touch mode. Based on the fact that the data lines D_1 ˜ D_n can be grouped into multiple groups, the touch resolution of the touch display panel 140 in the touch mode can be determined according to design requirements. In other words, the display resolution can be different from the touch resolution. Furthermore, compared with the energy transmitted by a single data line, the grouped data lines (multiple data lines belonging to the same group) can jointly transmit greater energy to facilitate touch detection.

FIG. 2 is a schematic circuit block diagram illustrating the source driver 130 shown in FIG. 1 according to an embodiment of the present invention. The source driver 130 shown in FIG. 2 includes a reference voltage bus 131, a plurality of driving channels (for example, driving channels 132_1, 132_2, 132_3, 132_4, 132_5, 132_6, . . . , 132_n), a voltage generating circuit 133, and a shift register (shift register) )134. Each of the driving channels 132_1˜132_n includes a latch and a first multiplexer. The following will take the driving channel 132_1 as an example for illustration, and the remaining driving channels 132_2˜132_n can be deduced in the same way.

The driving channel 132_1 includes a first latch 211 , a second latch 212 , a first multiplexer 213 and a buffer 214 . In some embodiments, buffer 214 may be implemented as a unity-gain buffer. The input terminal of the first latch 211 receives the pixel data provided by the controller 110 . The trigger terminal of the first latch 211 receives the latch clock provided by the shift register 134 . The input terminal of the second latch 212 is coupled to the output terminal of the first latch 211 . The trigger terminal of the second latch 212 receives the line latch signal provided by the controller 110 . In the display mode, the second latch 212 determines whether to latch and output the pixel data provided by the first latch 211 according to the line latch signal provided by the controller 110 . The second latch 212 latches in the touch mode and outputs group data.

The control terminal of the first multiplexer 213 is coupled to the output terminal of the second latch 212 to receive pixel data or group data. Multiple input terminals of the first multiplexer 213 are coupled to different wires of the reference voltage bus 131 in a one-to-one manner. In the display mode, the first multiplexer 213 can select one of the multiple wires of the reference voltage bus 131 according to the pixel data provided by the second latch 212, and transfer the gamma (GAMMA) voltage of the selected wire to (or the gray scale voltage) is sent to the output terminal of the first multiplexer 213 . Therefore, the output terminal of the first multiplexer 213 can output the pixel driving signal corresponding to the pixel data in the display mode. The first multiplexer 213 can be regarded as a digital-to-analog converter (Digital-to-Analog Converter, DAC). By analogy, in the touch mode, the first multiplexer 213 can couple one of the multiple wires of the reference voltage bus 131 to the output of the first multiplexer 213 according to the grouping data provided by the second latch 212 end. Therefore, the output end of the first multiplexer 213 can output one of the touch driving signals corresponding to the group to which it belongs in the touch mode.

The input end of the buffer 214 is coupled to the output end of the first multiplexer 213 . The output end of the buffer 214 is coupled to one corresponding data line D_1 of the data lines D_1 ˜ D_n of the touch display panel 140 . In other embodiments, the buffer 214 can be omitted according to design requirements. When the buffer 214 is omitted, the output terminal of the first multiplexer 213 can be coupled to the corresponding data line D_1 of the touch display panel 140 .

Multiple output terminals of the voltage generating circuit 133 are coupled to different wires of the reference voltage bus 131 in a one-to-one manner. The voltage generation circuit 133 provides a plurality of gamma voltages (fixed voltages) of different levels to the input terminals of the first multiplexer 213 driving the channels 132_1˜132_n through the reference voltage bus 131 in the display mode. The voltage generating circuit 133 provides a plurality of touch panel signals to the input terminals of the first multiplexer 213 of the driving channels 132_1 - 132 — n through the reference voltage bus 131 in the touch mode. In this embodiment, the touch panel signal includes a sine signal or a cosine signal. In other embodiments, the touch panel signal includes a plurality of clock pulses with different phases or other driving signals for touch detection.

In the embodiment shown in FIG. 2 , the voltage generation circuit 133 includes a gamma voltage generation circuit 220 and a touch panel signal generation circuit 230 . Multiple output terminals of the gamma voltage generating circuit 220 are coupled to different wires of the reference voltage bus 131 in a one-to-one manner. The gamma voltage generation circuit 220 provides a plurality of gamma voltages (fixed voltages with different levels) to the input terminals of the first multiplexer 213 driving the channels 132_1˜132_n via the reference voltage bus 131 in the display mode. The gamma voltage generating circuit 220 is disabled in the touch mode.

Multiple output terminals of the touch panel signal generating circuit 230 are coupled to different wires of the reference voltage bus 131 in a one-to-one manner. The touch panel signal generating circuit 230 provides a plurality of touch panel signals (such as sine signals, cosine signals, clock pulses or other driving signals for touch detection) to the driving channels 132_1˜132_n via the reference voltage bus 131 in the touch mode. The input terminal of the first multiplexer 213. The touch panel signal generating circuit 230 is disabled in the display mode.

In the embodiment shown in FIG. 2 , the touch panel signal generating circuit 230 includes a touch panel signal generator 231 and a plurality of second multiplexers 232 . The touch panel signal generator 231 generates the plurality of touch panel signals. The multiple input terminals of any one of the multiple second multiplexers 232 are respectively coupled to different output terminals of the touch panel signal generator 231 in a one-to-one manner to receive different touch panel signals. An output terminal of any one of the plurality of second multiplexers 232 is coupled to one of the wires of the reference voltage bus 131 . The plurality of second multiplexers 232 are controlled by the controller 110 .

When the source driver 130 is operating in the display mode, the gamma voltage generation circuit 220 provides a plurality of gamma voltages (fixed voltages with different levels) to the first multiplexer 213 of the driving channels 132_1˜132_n via the reference voltage bus 131 input. Therefore, the driving channels 132_1 - 132 — n can convert the image data into related pixel driving signals according to the gamma voltage in the display mode, so as to drive the touch display panel 140 to display corresponding images.

When the source driver 130 operates in the touch mode, the touch panel signal generation circuit 230 provides a plurality of touch panel signals (such as sine signals, cosine signals, clock pulses or other driving signals for touch detection) via the reference voltage bus 131 signal) to the input terminal of the first multiplexer 213 driving the channels 132_1˜132_n. The second latches 212 of the driving channels 132_1 - 132 — n can latch and output corresponding group data in the touch mode. According to the grouping data, the driving channels 132_1˜132_n and the data lines D_1˜D_n can be grouped into multiple groups. For example (but not limited thereto), in some embodiments, the second latches 212 of the driving channels 132_1-132_2 can output group data “00”, and the second latches 212 of the driving channels 132_3-132_4 The group data “01” can be output, and the second latches 212 driving the channels 132_5˜132_6 can output the group data “02”. According to the grouping data, the data lines D_1˜D_2 can be grouped into a first group to jointly transmit the touch panel signal provided by the first wire of the reference voltage bus 131 as a touch driving signal, and the data lines D_3˜D_4 can be grouped into The second group transmits the touch panel signal provided by the second wire of the reference voltage bus 131 as a touch driving signal, and the data lines D_5˜D_6 can be grouped into a third group to transmit the reference voltage bus 131 together. The touch panel signal provided by the third wire is used as a touch driving signal.

In some other embodiments, the second latches 212 driving the channels 132_1-132_3 may output the group data “00”, and the second latches 212 driving the channels 132_4-132_6 may output the group data “02”. According to the grouping data, the data lines D_1˜D_3 can be grouped into a first group to jointly transmit the touch panel signal provided by the first wire of the reference voltage bus 131 as a touch driving signal, and the data lines D_4˜D_6 can be divided into groups. For the second group, the touch panel signal provided by the third wire of the reference voltage bus 131 is commonly transmitted as the touch driving signal.

For another example, assume that the home driver 130 has 1000 data lines (or driving channels). In this embodiment, the output data of the second latch 212 of the driving channel corresponding to the 1st to 100th data line is 00, and the output data of the second latch 212 of the driving channel corresponding to the 101st to 200th data line is 01 , the output data of the second latch 212 of the driving channel corresponding to the 201st to 300th data lines is 02...and so on. Therefore, in this embodiment, 1000 data lines (or driving channels) can be grouped into 10 groups (1000/100=10).

After the data lines (or driving channels) are grouped, the controller 110 can change the touch driving signals of these groups by controlling the plurality of second multiplexers 232 . For example, during the first period of the touch mode, the second multiplexer 232 can transmit the sinusoidal signal (+sin) provided by the touch panel signal generator 231 to the first wire of the reference voltage bus 131, and the touch The negative sine signal (-sin) provided by the control panel signal generator 231 is transmitted to the second wire of the reference voltage bus 131, and the cosine signal (+cos) provided by the touch panel signal generator 231 is transmitted to the reference voltage bus 131 The third wire, and the fourth wire that transmits the negative cosine signal (-cos) provided by the touch panel signal generator 231 to the reference voltage bus 131 . During the second period of the touch mode, the second multiplexer 232 can transmit the cosine signal (+cos) provided by the touch panel signal generator 231 to the first wire of the reference voltage bus 131 to generate the touch panel signal The negative cosine signal (-cos) provided by the device 231 is transmitted to the second wire of the reference voltage bus 131, and the sine signal (+sin) provided by the touch panel signal generator 231 is transmitted to the third wire of the reference voltage bus 131 , and transmit the negative sinusoidal signal (-sin) provided by the touch panel signal generator 231 to the fourth wire of the reference voltage bus 131 .

To sum up, in this embodiment, the driving channels 132_1-132_n and the data lines D_1-D_n can be grouped into multiple groups by writing the grouping data into the second latches 212 of the driving channels 132_1-132_n. Then, in this embodiment, the touch driving signals of these groups can be changed by controlling the second multiplexer 232 . Therefore, the source driver 130 can be used as a touch detection transmitter in the touch mode, the data lines D_1˜D_n can be used as the driving electrodes of the touch sensor in the touch mode, and the scan line S_1 ~S_m can be used as the sensing electrodes of the touch sensor in the touch mode. In the touch mode, the touch resolution of the touch display panel 140 can be flexibly determined by the grouping data. Grouped data lines (multiple data lines belonging to the same group) can jointly transmit greater energy to facilitate touch detection.

In other embodiments, the buffer 214 may be a buffer with a signal-conversion function. In the touch mode, the voltage generation circuit 133 can generate digital signals (touch panel signals) to the first multiplexers in the drive channels 132_1, 132_2, 132_3, 132_4, 132_5, 132_6, . . . , 132_n via the reference voltage bus 131 device 213. According to the grouping data provided by the second latch 212 in the touch mode, the first multiplexer 213 can select one of the digital signals of the reference voltage bus 131 to output to the buffer 214 . The buffer 214 receives the digital signal through the first multiplexer 213 in the touch mode, and converts the digital signal into a touch driving signal.

FIG. 3 is a schematic circuit block diagram illustrating the source driver 130 shown in FIG. 1 according to another embodiment of the present invention. The source driver 130 shown in FIG. 3 includes a reference voltage bus 131 , a plurality of driving channels (such as driving channels 132_1 , 132_2 , 132_3 , 132_4 , 132_5 , 132_6 , . . . , 132_n), a voltage generating circuit 310 and a shift register 134 . The reference voltage bus 131 , the driving channels 132_1 to 132_n) and the shift register 134 shown in FIG. 3 can be analogized with reference to the relevant description of the embodiment shown in FIG. 2 .

In the embodiment shown in FIG. 3 , the voltage generating circuit 310 includes a gamma voltage generating circuit 320 . Multiple output terminals of the gamma voltage generating circuit 320 are coupled to different wires of the reference voltage bus 131 in a one-to-one manner. The gamma voltage generating circuit 320 provides a plurality of gamma voltages (fixed voltages with different levels) to the input terminals of the first multiplexer 213 driving the channels 132_1 - 132 — n through the reference voltage bus 131 in the display mode. The gamma voltage generating circuit 320 provides a plurality of touch panel signals (such as sine signals, cosine signals, clock pulses or other driving signals for touch detection) to the driving channels 132_1˜132_n via the reference voltage bus 131 in the touch mode. The input terminal of the first multiplexer 213 .

The embodiment shown in FIG. 3 can also group the driving channels 132_1-132_n and the data lines D_1-D_n into multiple groups by writing the grouping data into the second latches 212 of the driving channels 132_1-132_n. In the touch mode, multiple driving channels belonging to the same group output the same touch driving signal. Then, in this embodiment, the gamma voltage generating circuit 320 can change the touch driving signals of these groups. Therefore, the source driver 130 can be used as a touch detection transmitter in the touch mode, the data lines D_1˜D_n can be used as the driving electrodes of the touch sensor in the touch mode, and the scan line S_1 ~S_m can be used as the sensing electrodes of the touch sensor in the touch mode. In the touch mode, the touch resolution of the touch display panel 140 can be flexibly determined by the grouping data. Grouped data lines (multiple data lines belonging to the same group) can jointly transmit greater energy to facilitate touch detection.

Although the present invention has been disclosed as above with the embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims (19)

1. a kind of touch control display module, including：

One touch-control display panel, with a plurality of data lines；And

At least one source driver, is coupled to a plurality of data lines of the touch-control display panel, the source electrode driver is in a display Pattern provides multiple pixel drive signals to a plurality of data lines to drive the touch-control display panel to show a corresponding shadow respectively The a plurality of data lines point group is multiple groups in a control mode touch mode by picture, the source electrode driver, and the source electrode driver is at this Control mode touch mode exports multiple touch-control drive signals to the plurality of group respectively, wherein belonging to same group in the control mode touch mode The a plurality of data lines be provided identical touch-control drive signal；

Wherein the source electrode driver includes：

One reference voltage bus；

Multiple driving passages, each of which driving passage each including a latch unit and one first multiplexer, the latch unit in The display pattern breech lock simultaneously exports a pixel data, and the latch unit is in the control mode touch mode breech lock and exports one point of group's data, and this The control end of one multiplexer is coupled to the output end of the latch unit to receive the pixel data or this point of group's data, first multiplexing Multiple inputs of device are coupled to the different conductor of the reference voltage bus in one-to-one mode, an output of first multiplexer One of the plurality of pixel drive signal of end output or one of those touch-control drive signals；And

One voltage generation circuit, its multiple output end are coupled to those wires of the reference voltage bus in one-to-one mode, its In the voltage generation circuit provide multiple gamma electric voltages to those the first multiplexings via the reference voltage bus in the display pattern The input of device, and the voltage generation circuit provide multiple contact panels via the reference voltage bus in the control mode touch mode and believed Number to those the first multiplexers input.

2. touch control display module according to claim 1, increases wherein each driving passage each also includes a unit Beneficial buffer, the input of the module gain buffer is coupled to the output end of first multiplexer, module gain buffering The output end of device is coupled to the one of which of those data wires of the touch-control display panel.

3. touch control display module according to claim 1, wherein the contact panel signal includes sinusoidal signal or cosine Signal.

4. touch control display module according to claim 1, wherein each driving passage each also includes a buffer, One input of the buffer is coupled to the output end of first multiplexer, and an output end of the buffer is coupled to the touch-control The one of which of those data wires of display panel.

5. touch control display module according to claim 4, wherein those contact panel signals include a data signal, and are somebody's turn to do Buffer receives the data signal via first multiplexer in the control mode touch mode and the data signal is converted into the touch-control Drive signal.

6. touch control display module according to claim 1, the wherein voltage generation circuit are a gamma voltage generation circuit.

7. touch control display module according to claim 1, the wherein voltage generation circuit include：

One gamma voltage generation circuit, its multiple output end are coupled to those of the reference voltage bus in one-to-one mode and led Line, the wherein gamma voltage generation circuit in the display pattern via the reference voltage bus provide multiple gamma electric voltages to those The input of first multiplexer, and the gamma voltage generation circuit are disabled in the control mode touch mode；And

One contact panel signal generating circuit, its multiple output end are coupled to those of the reference voltage bus in one-to-one mode Wire, wherein the contact panel signal generating circuit provide multiple contact panels in the control mode touch mode via the reference voltage bus Signal is to the input of those the first multiplexers, and the contact panel signal generating circuit is disabled in the display pattern.

8. touch control display module according to claim 7, wherein the contact panel signal generating circuit include：

One contact panel signal generator, produces those contact panel signals；And

Multiple second multiplexers, the multiple inputs of any one of those the second multiplexers are coupled to contact panel signal generation Device is to receive those contact panel signals, and to be coupled to the reference voltage total for an output end of any one of those the second multiplexers The one of which of those wires of line.

9. a kind of source electrode driver, including：

One reference voltage bus；

Multiple driving passages, each of which driving passage each including a latch unit and one first multiplexer, the latch unit in One display pattern breech lock simultaneously exports a pixel data, and the latch unit is in a control mode touch mode breech lock and exports one point of group's data, and this The control end of one multiplexer is coupled to the output end of the latch unit to receive the pixel data or this point of group's data, first multiplexing Multiple inputs of device are coupled to the different conductor of the reference voltage bus in one-to-one mode, an output of first multiplexer One of multiple pixel drive signals of end output or one of multiple touch-control drive signals；And

One voltage generation circuit, its multiple output end are coupled to those wires of the reference voltage bus in one-to-one mode, its In the voltage generation circuit provide multiple gamma electric voltages to those the first multiplexings via the reference voltage bus in the display pattern The input of device, and the voltage generation circuit provide multiple contact panels via the reference voltage bus in the control mode touch mode and believed Number to those the first multiplexers input.

10. source electrode driver according to claim 9, wherein those driving passages according to those point of group's data be clustered for Multiple groups, and belong in the control mode touch mode those driving passages output identical touch-control drive signals of same group.

11. source electrode driver according to claim 9, wherein each driving passage each also includes a module gain Buffer, the input of the module gain buffer is coupled to the output end of first multiplexer, the module gain buffer Output end be coupled to a touch-control display panel multiple data wires one of which.

12. source electrode driver according to claim 9, wherein the contact panel signal includes sinusoidal signal or cosine is believed Number.

13. source electrode driver according to claim 9, wherein each driving passage each also includes a buffer, The input of the buffer is coupled to the output end of first multiplexer, and the output end of the buffer is coupled to a touch-control and shown The one of which of multiple data wires of panel.

14. source electrode driver according to claim 13, wherein those contact panel signals include a data signal, and are somebody's turn to do Buffer receives the data signal via first multiplexer in the control mode touch mode and the data signal is converted into the touch-control Drive signal.

15. source electrode driver according to claim 9, the wherein voltage generation circuit are a gamma voltage generation circuit.

16. source electrode driver according to claim 9, the wherein voltage generation circuit include：

One gamma voltage generation circuit, its multiple output end are coupled to those of the reference voltage bus in one-to-one mode and led Line, the wherein gamma voltage generation circuit in the display pattern via the reference voltage bus provide multiple gamma electric voltages to those The input of first multiplexer, and the gamma voltage generation circuit are disabled in the control mode touch mode；And

One contact panel signal generating circuit, its multiple output end are coupled to those of the reference voltage bus in one-to-one mode Wire, wherein the contact panel signal generating circuit provide multiple contact panels in the control mode touch mode via the reference voltage bus Signal is to the input of those the first multiplexers, and the contact panel signal generating circuit is disabled in the display pattern.

17. source electrode driver according to claim 16, wherein the contact panel signal generating circuit include：

One contact panel signal generator, produces those contact panel signals；And

Multiple second multiplexers, the multiple inputs of any one of those the second multiplexers are coupled to contact panel signal generation Device is to receive those contact panel signals, and to be coupled to the reference voltage total for an output end of any one of those the second multiplexers The one of which of those wires of line.

18. a kind of driving method of touch control display module, including：

Source electrode driver is made to provide a plurality of to a touch-control display panel respectively by multiple pixel drive signals in a display pattern Data wire, to drive the touch-control display panel to show a corresponding image；

Source electrode driver is made to be multiple groups by those data wires point group in a control mode touch mode；And

Source electrode driver is made to export multiple touch-control drive signals to those groups respectively in the control mode touch mode, wherein in the touch-control Those data wires for belonging to same group in pattern are provided identical touch-control drive signal；

Wherein the source electrode driver includes：

One reference voltage bus；

Multiple driving passages, each of which driving passage each including a latch unit and one first multiplexer, the latch unit in The display pattern breech lock simultaneously exports a pixel data, and the latch unit is in the control mode touch mode breech lock and exports one point of group's data, and this The control end of one multiplexer is coupled to the output end of the latch unit to receive the pixel data or this point of group's data, first multiplexing Multiple inputs of device are coupled to the different conductor of the reference voltage bus in one-to-one mode, an output of first multiplexer One of the plurality of pixel drive signal of end output or one of those touch-control drive signals；And

One voltage generation circuit, its multiple output end are coupled to those wires of the reference voltage bus in one-to-one mode, its In the voltage generation circuit provide multiple gamma electric voltages to those the first multiplexings via the reference voltage bus in the display pattern The input of device, and the voltage generation circuit provide multiple contact panels via the reference voltage bus in the control mode touch mode and believed Number to those the first multiplexers input.

19. according to the driving method of claim 18 touch control display module, wherein the touch-control drive signal is included just String signal or cosine signal.