Large-size touch display integrated system and driving signal processing method thereof

Abstract

A large-size touch display integrated system and a driving signal processing method thereof. The large-size touch display integrated system includes a plurality of large-size touch display integrated chips connected in series, which includes a master large-size touch display integrated chip and a plurality of slave large-size touch display integrated chips. The driving signal processing method for the large-size touch display integrated system includes: the plurality of large-size touch display integrated chips respectively receiving display data from a timing controller; and at least one of the plurality of slave large-size touch display integrated chips and the master large-size touch display integrated chip dispersively outputting M gate control signals respectively corresponding to M gate lines of a display panel according to the display data in a display stage of the display panel. The application can reduce the number of pins required by the large-size touch display integrated chip.

Description

TECHNICAL FIELD

[0001] The present application relates to a large-size touch display integrated system, and in particular, to a large-size touch display integrated system and a driving signal processing method thereof. BACKGROUND

[0002] In some applications, an electronic device can have a display function and a touch sensing function to obtain a better user experience. For such applications, two driver chips (a display driver chip and a touch detection chip) are needed to drive a display panel with a touch sensor to perform display operations and touch sensing operations. In the related application technology of large-size touch devices such as notebook computers, cars, or televisions, in order to reduce costs, the two driver chips are integrated into a large touch display integrated (LTDI) chip. The LTDI chip can drive the display panel with the touch sensor to perform the display operation and the touch sensing operation.

[0003] In the application of the existing LTDI system, a main LTDI chip is used to provide and uniformly send many control signals required in the display stage to the subsequent display elements. However, this will cause the pins of the main LTDI chip to be too many, thereby limiting the use conditions of the LTDI chip package and increasing the cost. SUMMARY

[0004] The purpose of the present application is to provide a driving signal processing method for a large-size touch display integrated system, which includes a plurality of large-size touch display integrated chips concatenated. The driving signal processing method includes: receiving display data from a time sequence controller by the plurality of large-size touch display integrated chips, respectively, the large-size touch display integrated system including a display panel and a printed circuit board, the display panel including the plurality of large-size touch display integrated chips, and the printed circuit board including the time sequence controller, the plurality of large-size touch display integrated chips including a main large-size touch display integrated chip and a plurality of slave large-size touch display integrated chips; and using at least one of the plurality of slave large-size touch display integrated chips and the main large-size touch display integrated chip to output M gate control signals according to the display data in the display stage of the display panel, the M gate control signals corresponding to M gate lines of the display panel, respectively. M is a positive integer greater than 1.

[0005] In some embodiments, the method of processing the driving signals further comprises: using at least one of the plurality of slave large-size touch display integrated chips and the master large-size touch display integrated chip to output M gate control signals to the level shifter of the printed circuit board in the display stage of the display panel according to the display data, so that the level shifter provides the gate driving signals to the M gate lines of the display panel, wherein each of the M gate control signals is an output selection signal.

[0006] In some embodiments, the gate driver of the display panel is formed on the substrate of the display panel by a Gate-in-Panel (GIP) method.

[0007] In some embodiments, the method of processing the driving signals further comprises: using at least one of the plurality of slave large-size touch display integrated chips and the master large-size touch display integrated chip to output M gate control signals to the gate driver of the display panel in the display stage of the display panel according to the display data, so that the gate driver provides the driving signals to the M gate lines of the display panel, wherein each of the M gate control signals is a clock signal.

[0008] In some embodiments, the gate driver is formed on the substrate of the display panel by a Gate-in-Panel (GIP) method.

[0009] In some embodiments, the number of the plurality of large-size touch display integrated chips is N, N is a positive integer greater than 1 and N < M, and each of the plurality of large-size touch display integrated chips is used to output M / N gate control signals.

[0010] In some embodiments, adjacent two of the plurality of large-size touch display integrated chips are synchronized by a reference clock signal.

[0011] In some embodiments, the plurality of large-size touch display integrated chips are spread spectrum modulated by a reference clock signal.

[0012] The present application aims to provide a large-size touch display integrated system, which comprises a printed circuit board and a display panel. The printed circuit board comprises a timing controller. The display panel comprises a plurality of large-size touch display integrated chips, which are connected in series and comprise a master large-size touch display integrated chip and a plurality of slave large-size touch display integrated chips. The plurality of large-size touch display integrated chips respectively receive display data from the timing controller. At least one of the plurality of slave large-size touch display integrated chips and the master large-size touch display integrated chip are used to output M gate control signals according to the display data in a display stage of the display panel, and the M gate control signals respectively correspond to M gate lines of the display panel. M is a positive integer greater than 1.

[0013] In some embodiments, the display panel is an in-cell liquid crystal display panel, the plurality of large-size touch display integrated chips are connected through a serial peripheral interface (SPI), and each of the plurality of large-size touch display integrated chips comprises a touch microcontroller (MCU), a touch analog front end (AFE) and a source driver.

[0014] In some embodiments, the printed circuit board further comprises a level shifter, and at least one of the plurality of slave large-size touch display integrated chips and the master large-size touch display integrated chip are used to output M gate control signals to the level shifter according to the display data in the display stage of the display panel, so that the level shifter provides gate drive signals to the M gate lines of the display panel, wherein each of the M gate control signals is an output selection signal.

[0015] In some embodiments, the display panel further comprises a gate driver, and the gate driver is formed on a substrate of the display panel through a gate-in-panel (GIP) method.

[0016] In some embodiments, the display panel further comprises a gate driver, and at least one of the plurality of slave large-size touch display integrated chips and the master large-size touch display integrated chip are used to output M gate control signals to the gate driver according to the display data in the display stage of the display panel, so that the gate driver provides gate drive signals to the M gate lines of the display panel, wherein each of the M gate control signals is a clock signal.

[0017] In some embodiments, the gate driver is formed on a substrate of the display panel through a gate-in-panel (GIP) method.

[0018] In some embodiments, the number of the plurality of large-size touch display integrated chips is N, N is a positive integer greater than 1 and N < M, and each of the plurality of large-size touch display integrated chips is configured to output M / N gate control signals.

[0019] In some embodiments, adjacent two of the plurality of large-size touch display integrated chips are synchronized in communication by a reference clock signal.

[0020] In some embodiments, the plurality of large-size touch display integrated chips are spread spectrum modulated by the reference clock signal.

[0021] So that the foregoing features and advantages of the present application can be more readily understood, a more particular description of the application follows, reference being made to the accompanying drawings in which: BRIEF DESCRIPTION OF DRAWINGS

[0022] The features and advantages of the present application will become more apparent from the detailed description set forth below when taken in conjunction with the drawings, in which like reference characters identify corresponding elements throughout. In the drawings, like reference numbers generally indicate functionally similar elements.

[0023] Figure 1 FIG. 1 is a schematic diagram of a large-size touch display integrated system according to an embodiment of the present application;

[0024] Figure 2 FIG. 2 is a flowchart of a driving signal processing method of a large-size touch display integrated system according to a first embodiment of the present application;

[0025] Figure 3 FIG. 3 is a signal transmission schematic diagram of a large-size touch display integrated chip according to the driving signal processing method of the first embodiment of the present application;

[0026] Figure 4 FIG. 4 is a signal transmission schematic diagram of a large-size touch display integrated chip according to a driving signal processing method of a second embodiment of the present application;

[0027] Figure 5 FIG. 5 is a flowchart of a driving signal processing method of a large-size touch display integrated system according to a third embodiment of the present application;

[0028] Figure 6 FIG. 6 is a signal transmission schematic diagram of a large-size touch display integrated chip according to the driving signal processing method of the third embodiment of the present application;

[0029] Figure 7 FIG. 7 is a signal transmission schematic diagram of a large-size touch display integrated chip according to a driving signal processing method of a fourth embodiment of the present application.

[0030] SYMBOL DESCRIPTION

[0031] 10: Large size touch display integration (LTDI) system

[0032] 102: Display panel

[0033] 102_1, 102_2, 102_3, 102_N: Large size touch display integration (LTDI) chip

[0034] 102_GD: Gate driver

[0035] 104: Printed circuit board

[0036] 104_F: Flash memory

[0037] 104_LS: Level shifter

[0038] 104_P: Power IC

[0039] 104_TCON: Timing controller

[0040] 106: Main system

[0041] 1000, 2000: Driving signal processing method of large size touch display integration (LTDI) system

[0042] CK[X:1], CK[Y:X+1], CK[Z:Y+1], CK[M:Z+1]: Gate control signal

[0043] DIM(Lane1), DIM(Lane2), DIM(Lane3), DIM(LaneN): Display data

[0044] Gate[M:1]: Output clock signal

[0045] GIP[X:1], GIP[Y:X+1], GIP[Z:Y+1], GIP[M:Z+1]: Gate control signal

[0046] GIP_HV[M:1]: Gate driving signal

[0047] Reference clk: Reference clock signal

[0048] S11, S12, S13, S21, S22, S23: Steps DETAILED DESCRIPTION

[0049] Embodiments of the present application are discussed below in detail. It should be understood, however, that the embodiments provide many applicable concepts that can be implemented in a wide variety of specific contexts. The embodiments discussed, disclosed, and taught herein are merely for illustration and are not intended to limit the scope of the application.

[0050] Figure 1 FIG. 1 is a schematic diagram of a large touch display integrated (LTDI) system 10 according to an embodiment of the present application. The LTDI system 10 includes a display panel 102, a printed circuit board (PCB) 104, and a host system 106.

[0051] The display panel 102 can be an in-cell liquid crystal display (LCD) panel. The display panel 102 includes N large touch display integrated (LTDI) chips 102_1-102_N. In particular, the number N of the large touch display integrated (LTDI) chips is usually determined by the resolution of the display panel 102. The higher the resolution, the larger the number N of the large touch display integrated (LTDI) chips.

[0052] The large touch display integrated (LTDI) chips 102_1-102_N are concatenated for driving display pixels (not shown) of the display panel to perform display operation and touch sensing operation in display phase and touch sensing phase, respectively.

[0053] The large touch display integrated (LTDI) chip 102_1 is defined as a master large touch display integrated (LTDI) chip in the present application, and the large touch display integrated (LTDI) chips 102_2-102_N are defined as slave large touch display integrated (LTDI) chips in the present application. The slave large touch display integrated (LTDI) chips 102_2-102_N are connected to the master large touch display integrated (LTDI) chip 102_1 through a serial peripheral interface (SPI).

[0054] Each large size touch display integration (LTDI) chip 102_1-102_N can include a touch microcontroller (MCU), a touch analog front end (AFE), a touch sensing module, and a source driver. The touch sensing module is used to sense a physical area corresponding to each large size touch display integration (LTDI) chip 102_1-102_N on the viewable area of the display panel to generate a plurality of touch sensing data. The touch microcontroller is used to collect and process the touch sensing data, and to determine the coordinate information of the touch position accordingly.

[0055] The printed circuit board 104 can include a level shifter 104_LS, a timing controller (TCON) 104_TCON, a power IC 104_P, and a flash memory 104_F to control the display panel 102, but not limited thereto.

[0056] The timing controller 104_TCON has an embedded display port (eDP) to receive display data DIM from the host system 106. The timing controller 104_TCON is used to output the display data DIM to the large size touch display integration (LTDI) chips 102_1-102_N, including but not limited to a vertical synchronization signal (VSYNC), a horizontal synchronization signal (HSYNC), a data enable signal (DE), a master clock signal (MCLK), and the like.

[0057] In a conventional large size touch display integration (LTDI) system, a master large size touch display integration (LTDI) chip sends a plurality of gate control signals to a plurality of gate lines of a display panel according to display data received from a timing controller in a display stage of the display panel, so as to provide gate driving signals to the plurality of gate lines of the display panel. In this way, on-voltage or off-voltage is sequentially provided to the plurality of gate lines. The on-voltage is used to turn on display elements connected to the corresponding gate line, and the off-voltage is used to turn off the display elements connected to the corresponding gate line. However, this conventional approach will result in too many pins of the master large size touch display integration (LTDI) chip, thereby limiting the use of the LTDI chip in the chip-on-film (COF) condition and increasing the cost. Specifically, this conventional approach will increase the number of inner lead bonding (ILB) pins, thereby limiting the width of the ILB (the width of the wiring), resulting in a decrease in the yield of the COF and an increase in the cost of chip production.

[0058] The present application provides a large size touch display integration system and a driving signal processing method thereof to improve the problems caused by the conventional approach.

[0059] Figure 2 is a flowchart of a driving signal processing method 1000 of a large size touch display integration (LTDI) system 10 according to a first embodiment of the present application. Figure 3 is a signal transmission diagram of a large size touch display integration (LTDI) chip according to the driving signal processing method 1000 of the first embodiment of the present application. As shown in Figure 2 and Figure 3 As shown in step S11, the large size touch display integration (LTDI) chips 102_1-102_N respectively receive display data DIM from a timing controller 104_TCON.

[0060] In step S12, the large size touch display integration (LTDI) chips 102_1-102_N respectively output M gate control signals according to the display data DIM received from the timing controller 104_TCON in a display stage of the display panel 102. The M gate control signals correspond to M gate lines of the display panel 102. In other words, the display panel 102 includes M rows of display elements. The M gate control signals are sent to a plurality of gate lines of the display panel, so as to provide gate driving signals to the M gate lines of the display panel, thereby sequentially turning on the display elements of a row.

[0061] In step S13, the large-size touch display integrated (LTDI) chips 102_1 to 102_N output M gate control signals to the level shifter 104_LS of the printed circuit board 104 during the display phase of the display panel 102. In the first embodiment of the present invention, the gate control signal output to the level shifter 104_LS is an output selection signal GIP, which the level shifter 104_LS uses to select either an on-voltage or an off-voltage as its output to drive the gate lines of the display panel 102. In other words, the level shifter 104_LS sequentially (from 1 to M) provides an on-voltage or an off-voltage to the M gate lines. The on-voltage is used to turn on the display elements connected to the corresponding gate lines, and the off-voltage is used to turn off the display elements connected to the corresponding gate lines. The M gate drive signals output by the level shifter 104_LS are in Figure 3 The Chinese label is GIP_HV[M:1].

[0062] In a first embodiment of the present invention, the gate driver of the display panel 102 is formed on the substrate of the display panel 102 by means of the gate-in-panel (GIP) method.

[0063] It is worth mentioning that, in step S11, the display data DIM received by each large-size touch display integration (LTDI) chip 102_1 to 102_N is mapped to which rows of display primitives the gate line corresponding to the gate control signal output by that chip corresponds to. For example, if the gate control signal output by the large-size touch display integration (LTDI) chip 102_1 (in... Figure 3 The gate line corresponding to GIP[X:1] corresponds to the display elements in rows 1 to X. Therefore, the display data received by the large-size touch display integration (LTDI) chip 102_1 from the timing controller 104_TCON is the display data corresponding to the display elements in rows 1 to X. Figure 3 The label is DIM (Lane 1). For example, if the gate control signal output by the Large Touch Display Integration (LTDI) chip 102_2 (in...) Figure 3 The gate line corresponding to GIP[Y:X+1] is the display element corresponding to row X+1 to row Y. Therefore, the display data received by the large-size touch display integration (LTDI) chip 102_2 from the timing controller 104_TCON is the display data corresponding to the display elements in row X+1 to row Y. Figure 3 The label is DIM (Lane 2). For example, if the gate control signal output by the Large Touch Display Integration (LTDI) chip 102_3 (in...)Figure 3 The gate line corresponding to GIP[Z:Y+1] is the display element corresponding to row Y+1 to row Z. Therefore, the display data received by the large-size touch display integration (LTDI) chip 102_3 from the timing controller 104_TCON is the display data corresponding to the display elements in row Y+1 to row Z. Figure 3 The label is DIM (Lane 3). For example, if the gate control signal output by the Large Touch Display Integration (LTDI) chip 102_N (in...) Figure 3 The gate line corresponding to GIP[M:Z+1] corresponds to the display primitives from row Z+1 to row M. Therefore, the display data received by the large-size touch display integration (LTDI) chip 102_N from the timing controller 104_TCON is the display data corresponding to the display primitives from row Z+1 to row M. Figure 3 The designation is DIM (Lane N).

[0064] Furthermore, since the display data received by the large-size touch display integration (LTDI) chips 102_1 to 102_N from the timing controller 104_TCON includes a vertical synchronization signal (VSYNC), the large-size touch display integration (LTDI) chips 102_1 to 102_N can sequentially (starting from 1 to M) provide M gate control signals to the level shifter 104_LS through computation.

[0065] In the preferred embodiment of the first embodiment of the present application, each of the large touch display integration (LTDI) chips 102_1-102_N is configured to output M / N gate control signals, and N < M. In other words, in the preferred embodiment of the first embodiment of the present application, each of the large touch display integration (LTDI) chips 102_1-102_N outputs the same number of gate control signals, so as to preferably reduce the pin number of the large touch display integration (LTDI) chip, but the present application is not limited thereto. In the first embodiment of the present application, as long as at least one of the slave large touch display integration (LTDI) chips 102_2-102_N and the master large touch display integration (LTDI) chip 102_1 output gate control signals. In other embodiments of the first embodiment of the present application, the number of gate control signals outputted by each of the large touch display integration (LTDI) chips 102_1-102_N can not be exactly the same. In addition, in other embodiments of the first embodiment of the present application, at least one of the slave large touch display integration (LTDI) chips 102_2-102_N and the master large touch display integration (LTDI) chip 102_1 output gate control signals, while other slave large touch display integration (LTDI) chips output no gate control signals.

[0066] It is worth mentioning that, in the first embodiment of the present application, the large touch display integration (LTDI) chips 102_1-102_N output gate control signals to the level shifter 104_LS only in the display stage of the display panel 102, and the large touch display integration (LTDI) chips 102_1-102_N do not output gate control signals to the level shifter 104_LS in the touch stage of the display panel 102.

[0067] Figure 4 is a signal transmission schematic diagram of the large touch display integration (LTDI) chip according to the driving signal processing method 1000 of the second embodiment of the present application. Figure 4 With Figure 3 Similarly, the difference is that, in the second embodiment of the present application as shown in Figure 4 , the adjacent two of the large touch display integration (LTDI) chips 102_1-102_N are connected to each other through the reference clock signals (in Figure 4The large-size touch display integration (LTDI) chips 102_1~102_N communicate with each other through the reference clock signal Reference clk to achieve synchronization function, so that the large-size touch display integration (LTDI) chips 102_1~102_N can more accurately know the output timing of the M gate control signals, to achieve more accurate output timing control. In addition, since the large-size touch display integration (LTDI) chips 102_1~102_N communicate with each other through the reference clock signal Reference clk, the large-size touch display integration (LTDI) chips 102_1~102_N can more accurately spread the spectrum through the reference clock signal Reference clk to achieve more flexible driving mode.

[0068] Figure 5 is a flowchart of a driving signal processing method 2000 of a large-size touch display integration (LTDI) system 10 according to a third embodiment of the present application. Figure 6 is a signal transmission schematic diagram of a large-size touch display integration (LTDI) chip of the driving signal processing method 2000 according to the third embodiment of the present application. As shown in Figure 5 and Figure 6 At step S21, the large-size touch display integration (LTDI) chips 102_1~102_N respectively receive display data DIM from the timing controller 104_TCON.

[0069] At step S22, the large-size touch display integration (LTDI) chips 102_1~102_N respectively output M gate control signals according to the display data received from the timing controller 104_TCON at the display stage of the display panel 102. The M gate control signals correspond to M gate lines of the display panel 102. In other words, the display panel 102 includes M rows of display elements. The M gate control signals are sent to the subsequent display elements to provide gate driving signals to the M gate lines of the display panel, so as to turn on the display elements of a row row by row.

[0070] In step S23, during the display phase of the display panel 102, the large-size touch display integrated (LTDI) chips 102_1 to 102_N output M gate control signals to the gate driver 102_GD of the display panel 102. The gate driver 102_GD then outputs gate drive signals to the M gate lines of the display panel 102. In the third embodiment of the present invention, the gate control signal output by the large-size touch display integrated (LTDI) chips 102_1 to 102_N to the gate driver is a clock signal CK, but the present invention is not limited thereto. The gate control signal output by the large-size touch display integrated (LTDI) chips 102_1 to 102_N to the gate driver may also include a start pulse signal STV. The gate driver 102_GD generates a gate drive signal (i.e., output clock signal) based on the clock signal CK and the start pulse signal STV to drive the gate lines on the display panel 102. The M output clock signals output by the gate driver 102_GD in... Figure 6 The Chinese label is Gate[M:1].

[0071] In a third embodiment of the present invention, the gate driver 102_GD is formed on the substrate of the display panel 102 by means of the gate-in-panel (GIP) method.

[0072] It is worth mentioning that, in step S21, the display data DIM received by each large-size touch display integration (LTDI) chip 102_1 to 102_N is mapped to which rows of display primitives the gate line corresponding to the gate control signal output by that chip corresponds to. For example, if the gate control signal output by the large-size touch display integration (LTDI) chip 102_1 (in... Figure 6 The gate line marked CK[X:1] corresponds to the display elements in rows 1 to X. Therefore, the display data received by the large-size touch display integration (LTDI) chip 102_1 from the timing controller 104_TCON is the display data corresponding to the display elements in rows 1 to X. Figure 6 The label is DIM (Lane 1). For example, if the gate control signal output by the Large Touch Display Integration (LTDI) chip 102_2 (in...) Figure 6 The gate line corresponding to CK[Y:X+1] corresponds to the display elements from row X+1 to row Y. Therefore, the display data received by the large-size touch display integrated (LTDI) chip 102_2 from the timing controller 104_TCON is the display data corresponding to the display elements from row X+1 to row Y. Figure 6 The label is DIM (Lane 2). For example, if the gate control signal output by the Large Touch Display Integration (LTDI) chip 102_3 (in...)Figure 6 The gate line corresponding to CK[Z:Y+1] corresponds to the display elements from row Y+1 to row Z. Therefore, the display data received by the large-size touch display integration (LTDI) chip 102_3 from the timing controller 104_TCON is the display data corresponding to the display elements from row Y+1 to row Z. Figure 6 The label is DIM (Lane 3). For example, if the gate control signal output by the Large Touch Display Integration (LTDI) chip 102_N (in...) Figure 6 The gate line corresponding to CK[M:Z+1] corresponds to the display elements from row Z+1 to row M. Therefore, the display data received by the large-size touch display integration (LTDI) chip 102_N from the timing controller 104_TCON is the display data corresponding to the display elements from row Z+1 to row M. Figure 6 The designation is DIM (Lane N).

[0073] Furthermore, since the display data received by the large-size touch display integration (LTDI) chips 102_1 to 102_N from the timing controller 104_TCON includes vertical synchronization signals (VSYNC), the large-size touch display integration (LTDI) chips 102_1 to 102_N can sequentially (starting from 1 to M) provide M gate control signals to the gate driver 102_GD through calculation.

[0074] In a preferred embodiment of the third embodiment of the present invention, each of the large-size touch display integration (LTDI) chips 102_1 to 102_N is used to output M / N gate control signals, and N < M. In other words, in a preferred embodiment of the third embodiment of the present invention, the number of gate control signals output by each of the large-size touch display integration (LTDI) chips 102_1 to 102_N is the same, so as to preferably reduce the number of pins of the large-size touch display integration (LTDI) chip, but the present invention is not limited thereto. In the third embodiment of the present invention, as long as at least one of the subordinate large-size touch display integration (LTDI) chips 102_2 to 102_N and the main large-size touch display integration (LTDI) chip 102_1 outputs gate control signals. In some other aspects of the third embodiment of the present invention, the number of gate control signals output by each of the large-size touch display integration (LTDI) chips 102_1 to 102_N may not be exactly the same. In addition, in some other aspects of the third embodiment of the present invention, at least one of the subordinate large-size touch display integration (LTDI) chips 102_2 to 102_N and the main large-size touch display integration (LTDI) chip 102_1 may output gate control signals, while the other subordinate large-size touch display integration (LTDI) chips other than the above do not output gate control signals.

[0075] It is worth mentioning that in the third embodiment of the present invention, the large-size touch display integration (LTDI) chips 102_1 to 102_N only output gate control signals to the gate driver 102_GD during the display stage of the display panel 102, and the large-size touch display integration (LTDI) chips 102_1 to 102_N do not output gate control signals to the gate driver 102_GD during the touch stage of the display panel 102.

[0076] Figure 7 It is a signal transmission schematic diagram of a large-size touch display integration (LTDI) chip of the drive signal processing method 1000 according to the fourth embodiment of the present invention. Figure 7 Similar to Figure 6 , the difference is that in the fourth embodiment of the present invention such as Figure 7 , between two adjacent ones of the large-size touch display integration (LTDI) chips 102_1 to 102_N through mutual reference clock signals (in Figure 7The large-size touch display integration (LTDI) chips 102_1~102_N communicate with each other through the reference clock signal Reference clk to achieve synchronization function, so that the large-size touch display integration (LTDI) chips 102_1~102_N can more accurately know the output timing of the M gate control signals, to achieve more accurate output timing control. In addition, since the large-size touch display integration (LTDI) chips 102_1~102_N communicate with each other through the reference clock signal Reference clk, the large-size touch display integration (LTDI) chips 102_1~102_N can more easily spread spectrum modulation through the reference clock signal Reference clk to achieve more flexible driving mode.

[0077] In summary, the present application proposes a large-size touch display integration system and a driving signal processing method thereof. The distributed architecture is used to share the output requirement of the plurality of gate control signals by the plurality of large-size touch display integration (LTDI) chips, so as to reduce the pin number of the large-size touch display integration (LTDI) chip. Since the pin number of the large-size touch display integration (LTDI) chip is reduced, the use condition of the chip-on-film (COF) of the LTDI chip can be relaxed and the cost can be reduced. Specifically, the method of the present application can reduce the pin number of the inner lead bonding (ILB), so as to reduce the width limitation of the ILB (wiring width limitation), to effectively increase the yield of the COF and reduce the chip production cost.

[0078] The above outlines the features of several embodiments, so that those skilled in the art can better understand the aspects of the present application. Those skilled in the art should understand that they can easily design or modify other processes and structures based on the present application, thereby achieving the same objectives and / or achieving the same advantages as the embodiments described herein. Those skilled in the art should also understand that these equivalent constructions do not deviate from the spirit and scope of the present application, and they can make various changes, substitutions and modifications without deviating from the spirit and scope of the present application.

Claims

1. A method of driving signal processing, characterized by, A driving signal processing method for a large touch display integrated (LTDI) system including a plurality of large touch display integrated chips concatenated, the driving signal processing method comprising: receiving, by the plurality of large touch display integrated chips, a display data from a timing controller, wherein the LTDI system includes a display panel and a printed circuit board, wherein the display panel includes the plurality of large touch display integrated chips, wherein the printed circuit board includes the timing controller, wherein the plurality of large touch display integrated chips includes a master large touch display integrated chip and a plurality of slave large touch display integrated chips; and dispersively outputting, by at least one of the plurality of slave large touch display integrated chips and the master large touch display integrated chip, M gate control signals according to the display data in a display phase of the display panel, wherein the M gate control signals respectively correspond to M gate lines of the display panel, wherein M is a positive integer greater than 1, wherein a number of the plurality of large touch display integrated chips is N, wherein N is a positive integer greater than 1, and N < M, wherein each of the plurality of large touch display integrated chips is configured to output M / N gate control signals.

2. The drive signal processing method of claim 1, wherein, Further comprising: dispersively outputting, by the at least one of the plurality of slave large touch display integrated chips and the master large touch display integrated chip, the M gate control signals according to the display data in the display phase of the display panel to a level shifter of the printed circuit board, for the level shifter to provide gate driving signals to the M gate lines of the display panel; wherein each of the M gate control signals is an output selection signal.

3. The drive signal processing method of claim 2, wherein, wherein a gate driver of the display panel is formed on a substrate of the display panel by a gate-in-panel (GIP) method.

4. The drive signal processing method of claim 1, wherein, Further comprising: dispersively outputting, by the at least one of the plurality of slave large touch display integrated chips and the master large touch display integrated chip, the M gate control signals according to the display data in the display phase of the display panel to a gate driver of the display panel, for the gate driver to provide driving signals to the M gate lines of the display panel; wherein each of the M gate control signals is a clock signal.

5. The drive signal processing method of claim 4, wherein, wherein the gate driver is formed on a substrate of the display panel by a gate-in-panel (GIP) method.

6. The drive signal processing method of claim 1, wherein, wherein adjacent two of the plurality of large touch display integrated chips are synchronized in communication by a reference clock signal.

7. The drive signal processing method of claim 6, wherein, wherein the plurality of large touch display integrated chips are spread spectrum modulated by the reference clock signal.

8. A large-size touch display integrated system, characterized in that, including: a printed circuit board including a timing controller; and A display panel includes a plurality of large-size touch display integrated chips, wherein the plurality of large-size touch display integrated chips are connected in series, wherein the plurality of large-size touch display integrated chips include a master large-size touch display integrated chip and a plurality of slave large-size touch display integrated chips. The plurality of large-size touch display integrated chips respectively receive a display data from the timing controller. At least one of the plurality of slave large-size touch display integrated chips and the master large-size touch display integrated chip are used to output M gate control signals according to the display data in a display phase of the display panel, wherein the M gate control signals respectively correspond to M gate lines of the display panel, wherein M is a positive integer greater than 1, wherein the number of the plurality of large-size touch display integrated chips is N, wherein N is a positive integer greater than 1, and N < M, wherein each of the plurality of large-size touch display integrated chips is used to output M / N gate control signals. 9.The large-size touch display integrated system of claim 8, wherein, The display panel is an in-cell liquid crystal display panel, wherein the plurality of large-size touch display integrated chips are connected through a serial peripheral interface, wherein each of the plurality of large-size touch display integrated chips includes a touch microcontroller (MCU), a touch analog front end (AFE), and a source driver. 10.The large-size touch display integrated system of claim 8, wherein, The printed circuit board further includes a level shifter, and the at least one of the plurality of slave large-size touch display integrated chips and the master large-size touch display integrated chip are used to output the M gate control signals to the level shifter according to the display data in the display phase of the display panel, so that the level shifter provides gate driving signals to the M gate lines of the display panel, wherein each of the M gate control signals is an output selection signal. 11.The large-size touch display integrated system of claim 10, wherein, The display panel further includes a gate driver, and the gate driver is formed on a substrate of the display panel through a gate-in-panel (GIP) method. 12.The large-size touch display integrated system of claim 8, wherein, The display panel further includes a gate driver, and the at least one of the plurality of slave large-size touch display integrated chips and the master large-size touch display integrated chip are used to output the M gate control signals to the gate driver according to the display data in the display phase of the display panel, so that the gate driver provides gate driving signals to the M gate lines of the display panel, wherein each of the M gate control signals is a clock signal. 13.The large-size touch display integrated system of claim 12, wherein, The gate driver is formed on the substrate of the display panel through a gate-in-panel (GIP) method. 14.The large-size touch display integrated system of claim 8, wherein, Adjacent two of the plurality of large-size touch display integrated chips are synchronized through a reference clock signal. 15.The large-size touch display integrated system of claim 14, wherein, The plurality of large-size touch display integrated chips are spread spectrum modulated through the reference clock signal.

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