TWI823743B

TWI823743B - Touch driving method, TDDI chip and information processing device

Info

Publication number: TWI823743B
Application number: TW112100646A
Authority: TW
Inventors: 葛茂; 陳臣; 吳垠
Original assignee: 大陸商北京集創北方科技股份有限公司
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-11-21

Abstract

本發明主要揭示一種觸控驅動方法，係應用於包含一控制單元、一觸控電路、一顯示驅動電路以及一多工器電路的一TDDI晶片之中，其中該觸控電路耦接一觸控面板的一信號接收側與一信號輸出側。所述觸控驅動方法係由該控制單元所執行，且包括：依據至少一觸控驅動起始時間段與至少一觸控驅動結束時間段決定至少一脈衝寬度；以及產生具有所述至少一脈衝寬度的一觸控驅動使能信號傳送至該觸控電路，從而驅動該觸控電路傳送一觸摸掃描信號至該觸控面板的該信號接收側。The present invention mainly discloses a touch driving method, which is applied to a TDDI chip including a control unit, a touch circuit, a display driving circuit and a multiplexer circuit, wherein the touch circuit is coupled to a touch A signal receiving side and a signal output side of the panel. The touch driving method is executed by the control unit and includes: determining at least one pulse width based on at least one touch drive starting time period and at least one touch driving ending time period; and generating the at least one pulse. A touch drive enable signal with a width is transmitted to the touch circuit, thereby driving the touch circuit to transmit a touch scan signal to the signal receiving side of the touch panel.

Description

觸控驅動方法、TDDI晶片以及資訊處理裝置Touch driving method, TDDI chip and information processing device

本發明為觸控與顯示驅動整合(Touch and Display Driver Integration, TDDI)晶片的相關技術領域，尤指由TDDI晶片執行的一種觸控驅動方法。The present invention relates to the technical field related to touch and display driver integration (Touch and Display Driver Integration, TDDI) chips, and particularly refers to a touch driving method performed by a TDDI chip.

近年來，穿載式電子裝置(如：智慧型手錶)因能提供諸多能滿足人們社交、娛樂及日常生活的多種應用功能，故其普及率逐年攀升。已知，穿戴式電子裝置(如：智慧型手錶)普遍搭載AMOLED面板以及觸控面板，並含有用以驅動該AMOLED面板進行圖像顯示的一顯示驅動晶片以及用以驅動該觸控面板進行觸摸檢測的一觸控晶片。目前，為了節省電路使用面積，同時包含顯示驅動電路和觸控驅動電路的觸控與顯示驅動整合(Touch and Display Driver Integration, TDDI)晶片取代了習用的顯示驅動晶片和觸控晶片，被廣泛地應用在穿載式電子裝置之中。In recent years, the popularity of wearable electronic devices (such as smart watches) has increased year by year because they can provide many application functions that can meet people's social, entertainment and daily life. It is known that wearable electronic devices (such as smart watches) are generally equipped with AMOLED panels and touch panels, and include a display driver chip for driving the AMOLED panel to display images and a display driver chip for driving the touch panel to perform touch. A touch chip being detected. Currently, in order to save circuit area, Touch and Display Driver Integration (TDDI) chips that include both display driver circuits and touch driver circuits have replaced the conventional display driver chips and touch chips and are widely used. Used in wearable electronic devices.

通常，習知技術在TDDI晶片之中採用分時驅動方法，即，將一顯示周期分為一顯示驅動期間T1與一觸控驅動期間T2。在顯示驅動期間T1，該顯示驅動電路產生一顯示驅動信號傳送至AMOLED面板(即，顯示面板)。並且，在觸控驅動期間T2，該觸控驅動電路產生一觸摸掃描信號傳送至該觸控面板，並自該觸控面板接收一觸摸感測信號。依此設計，觸控驅動和顯示驅動彼此互不干擾。Generally, the conventional technology adopts a time-sharing driving method in TDDI chips, that is, dividing a display period into a display driving period T1 and a touch driving period T2. During the display driving period T1, the display driving circuit generates a display driving signal and transmits it to the AMOLED panel (ie, display panel). Moreover, during the touch driving period T2, the touch driving circuit generates a touch scanning signal and transmits it to the touch panel, and receives a touch sensing signal from the touch panel. According to this design, the touch driver and the display driver do not interfere with each other.

在習知技術的設計中，通常會令觸摸掃描信號的幀率與顯示驅動信號的幀率之間具有一固定比例(1:1或1:2)。然而，為了減少功率消耗，穿戴是電子裝置通常具有正常顯示模式和省電顯示模式。值得說明的是，正常顯示模式的顯示幀率(如：60Hz)低於省電顯示模式的顯示幀率(如：15Hz)。在此情況下，若觸摸掃描信號的幀率沒有依據正常顯示模式和省電顯示模式而對應地切換，則有可能出現觸控驅動和顯示驅動不同步的現象，影響用戶的使用體驗。In the design of the conventional technology, there is usually a fixed ratio (1:1 or 1:2) between the frame rate of the touch scanning signal and the frame rate of the display driving signal. However, in order to reduce power consumption, wearable electronic devices usually have a normal display mode and a power-saving display mode. It is worth mentioning that the display frame rate of the normal display mode (eg: 60Hz) is lower than the display frame rate of the power-saving display mode (eg: 15Hz). In this case, if the frame rate of the touch scan signal is not switched correspondingly according to the normal display mode and the power-saving display mode, the touch driver and the display driver may be out of sync, affecting the user experience.

由上述說明可知，本領域亟需應用於TDDI晶片的一種觸控驅動方法。It can be seen from the above description that there is an urgent need in this field for a touch driving method applied to TDDI chips.

本發明之主要目的在於提供一種觸控驅動方法，係應用於一TDDI晶片之中。在應用本發明之觸控驅動方法的情況下，該TDDI晶片可執行多種觸摸檢測(或稱觸摸掃描)模式，使得該TDDI晶片對於顯示面板的顯示驅動以及對於觸控面板的觸控驅動可以同步，避免顯示驅動和觸控驅動相互影響。因此，與習知的TDDI晶片相比，應用本發明之觸控驅動方法的TDDI晶片能夠同時提高顯示面板所呈現的視覺效果以及觸控面板的觸控靈敏度。The main purpose of the present invention is to provide a touch driving method, which is applied to a TDDI chip. When the touch driving method of the present invention is applied, the TDDI chip can perform multiple touch detection (or touch scanning) modes, so that the TDDI chip can synchronize the display driving of the display panel and the touch driving of the touch panel. , to prevent the display driver and touch driver from affecting each other. Therefore, compared with the conventional TDDI chip, the TDDI chip using the touch driving method of the present invention can simultaneously improve the visual effect of the display panel and the touch sensitivity of the touch panel.

為達成上述目的，本發明提出所述觸控驅動方法的一第一實施例，其係應用於包含一控制單元、一觸控電路、一顯示驅動電路以及一多工器電路的一TDDI晶片之中，其中該觸控電路耦接一觸控面板的一信號接收側與一信號輸出側，且該觸控驅動方法由該控制單元所執行，並包括：依據至少一觸控驅動起始時間段與至少一觸控驅動結束時間段決定至少一脈衝寬度；以及產生具有所述至少一脈衝寬度的一觸控驅動使能信號TPS傳送至該觸控電路，從而驅動該觸控電路傳送一觸摸掃描信號至該觸控面板的該信號接收側。 To achieve the above object, the present invention proposes a first embodiment of the touch driving method, which is applied to a TDDI chip including a control unit, a touch circuit, a display driving circuit and a multiplexer circuit. wherein the touch circuit is coupled to a signal receiving side and a signal output side of a touch panel, and the touch driving method is executed by the control unit and includes: Determine at least one pulse width based on at least one touch drive start time period and at least one touch drive end time period; and A touch drive enable signal TPS with the at least one pulse width is generated and transmitted to the touch circuit, thereby driving the touch circuit to transmit a touch scan signal to the signal receiving side of the touch panel.

在一實施例中，該至少一觸控驅動起始時間段包括一第一觸控驅動起始時間段與一第二觸控驅動起始時間段，且該至少一觸控驅動結束時間段包括對應該第一觸控驅動起始時間段的一第一觸控驅動結束時間段以及對應該第二觸控驅動起始時間段的一第二觸控驅動結束時間段。In one embodiment, the at least one touch drive start time period includes a first touch drive start time period and a second touch drive start time period, and the at least one touch drive end time period includes There is a first touch drive end time period corresponding to the first touch drive start time period and a second touch drive end time period corresponding to the second touch drive start time period.

在一實施例中，該TDDI晶片更包括：耦接該控制單元的一第一寄存器與一第二寄存器，該第一寄存器儲存該第一觸控驅動起始時間段與該第二觸控驅動起始時間段，且該第二寄存器儲存該第一觸控驅動結束時間段與該第二觸控驅動結束時間段。In one embodiment, the TDDI chip further includes: a first register and a second register coupled to the control unit, the first register stores the first touch drive starting time period and the second touch drive The first touch drive end time period and the second touch drive end time period are stored in the second register.

在一實施例中，該觸控驅動始能信號在一第一觸控驅動模式下具有一第一脈衝寬度，在一第二觸控驅動模式下同樣具有所述第一脈衝寬度，在一第三觸控驅動模式下具有一第二脈衝寬度，且在一第四觸控驅動模式下同時具有該第一脈衝寬度與該第二脈衝寬度。In one embodiment, the touch drive enable signal has a first pulse width in a first touch drive mode, and also has the first pulse width in a second touch drive mode. There is a second pulse width in the three-touch driving mode, and the first pulse width and the second pulse width are simultaneously in a fourth touch driving mode.

在一實施例中，於該第一觸控驅動模式和該第二觸控驅動模式下，該第一觸控驅動起始時間段決定該第一脈衝寬度的脈衝上升沿與一水平同步信號的脈衝下降沿之間的一第一相對時間間隔，且該第一觸控驅動結束時間段決定該第一脈衝寬度的脈衝下降沿與該水平同步信號的脈衝下降沿之間的一第二相對時間間隔。In one embodiment, in the first touch drive mode and the second touch drive mode, the first touch drive start time period determines the pulse rising edge of the first pulse width and a horizontal synchronization signal. A first relative time interval between pulse falling edges, and the first touch drive end period determines a second relative time between the pulse falling edges of the first pulse width and the pulse falling edges of the horizontal synchronization signal interval.

在一可行實施例中，該多工器電路接收由該控制單元所傳送的複數個多工器使能信號，且各所述多工器使能信號具有一第三脈衝寬度；在該第一觸控驅動模式下，該觸摸掃描信號具有一第一觸摸掃描脈衝寬度，且該第一觸摸掃描脈衝寬度在一連續時間內落後於最後一個所述第三脈衝寬度。In a possible embodiment, the multiplexer circuit receives a plurality of multiplexer enable signals transmitted by the control unit, and each of the multiplexer enable signals has a third pulse width; in the first In the touch driving mode, the touch scan signal has a first touch scan pulse width, and the first touch scan pulse width lags behind the last third pulse width in a continuous period of time.

在另一可行實施例中，於該第二觸控驅動模式下，該第一觸摸掃描脈衝寬度在一連續時間內與複數個所述第三脈衝寬度相對重疊。In another possible embodiment, in the second touch driving mode, the first touch scan pulse width relatively overlaps with a plurality of the third pulse widths within a continuous period of time.

在一實施例中，於該第三觸控驅動模式，該第二觸控驅動起始時間段決定該第二脈衝寬度的脈衝上升沿和一垂直前肩(VFP)的起始沿之間的一第三相對時間間隔，且該第二觸控驅動結束時間段決定該第二脈衝寬度的脈衝下降沿和一垂直後肩(VBP)的結束沿之間的一第四相對時間間隔。In one embodiment, in the third touch drive mode, the second touch drive start time period determines the time between the pulse rising edge of the second pulse width and the start edge of a vertical front shoulder (VFP). A third relative time interval, and the second touch drive end period determines a fourth relative time interval between the pulse falling edge of the second pulse width and the end edge of a vertical back shoulder (VBP).

在一實施例中，於該第三觸控驅動模式下，該觸摸掃描信號具有一第二觸摸掃描脈衝寬度，且該第二觸摸掃描脈衝寬度在一連續時間內與一顯示數據使能信號DE的一垂直消隱區間(Vertical blank interval, VBI)相對重疊。In one embodiment, in the third touch driving mode, the touch scan signal has a second touch scan pulse width, and the second touch scan pulse width is consistent with a display data enable signal DE within a continuous period of time. A vertical blank interval (VBI) of relatively overlaps.

在一可行實施例中，於該第四觸控驅動模式下，該觸摸掃描信號同時具有至少一所述第一觸摸掃描脈衝寬度與至少一所述第二觸摸掃描脈衝寬度，該第一觸摸掃描脈衝寬度在一連續時間內落後於最後一個所述第三脈衝寬度，且該第二觸摸掃描脈衝寬度在一連續時間內與一顯示數據使能信號的一垂直消隱區間(VBI)相對重疊。In a possible embodiment, in the fourth touch driving mode, the touch scan signal has at least one first touch scan pulse width and at least one second touch scan pulse width. The first touch scan signal The pulse width lags behind the last third pulse width in a continuous time, and the second touch scan pulse width relatively overlaps with a vertical blanking interval (VBI) of a display data enable signal in a continuous time.

在另一可行實施例中，於該第四觸控驅動模式下，該觸摸掃描信號Sx同時具有至少一所述第一觸摸掃描脈衝寬度與至少一所述第二觸摸掃描脈衝寬度，該第一觸摸掃描脈衝寬度在一連續時間內與複數個所述第三脈衝寬度相對重疊，且該第二觸摸掃描脈衝寬度在一連續時間內與一顯示數據使能信號的一垂直消隱區間(VBI)相對重疊。In another possible embodiment, in the fourth touch driving mode, the touch scan signal Sx has at least one first touch scan pulse width and at least one second touch scan pulse width at the same time. The first touch scan pulse width The touch scan pulse width relatively overlaps with a plurality of the third pulse widths within a continuous period of time, and the second touch scan pulse width overlaps with a vertical blanking interval (VBI) of a display data enable signal within a continuous period of time. relative overlap.

另一方面，本發明還提出所述觸控驅動方法的一第二實施例，其係應用於包含一控制單元、一觸控電路、一顯示驅動電路以及一多工器電路的一TDDI晶片之中，其中該觸控電路耦接一觸控面板的一信號接收側與一信號輸出側，且該觸控驅動方法由該控制單元所執行，並包括：依據一觸發周期產生具有至少一脈衝寬度的一觸控驅動使能信號；傳送該觸控驅動使能信號至該觸控電路，從而驅動該觸控電路傳送一觸摸掃描信號至該觸控面板的該信號接收側。 On the other hand, the present invention also proposes a second embodiment of the touch driving method, which is applied to a TDDI chip including a control unit, a touch circuit, a display driving circuit and a multiplexer circuit. wherein the touch circuit is coupled to a signal receiving side and a signal output side of a touch panel, and the touch driving method is executed by the control unit and includes: Generate a touch drive enable signal with at least one pulse width according to a trigger cycle; The touch drive enable signal is sent to the touch circuit, thereby driving the touch circuit to send a touch scan signal to the signal receiving side of the touch panel.

並且，本發明同時提供一種TDDI晶片的一實施例，其包括一控制單元、一觸控電路、一顯示驅動電路以及一多工器電路，其中該顯示驅動電路用以耦接一顯示面板，且該觸控電路用以耦接一觸控面板；其特徵在於，該控制單元執行如前所述本發明之觸控驅動方法以控制該觸控電路傳送一觸摸掃描信號至該觸控面板。Moreover, the present invention also provides an embodiment of a TDDI chip, which includes a control unit, a touch circuit, a display driving circuit and a multiplexer circuit, wherein the display driving circuit is used to couple to a display panel, and The touch circuit is used to couple to a touch panel; it is characterized in that the control unit executes the touch driving method of the present invention as described above to control the touch circuit to transmit a touch scan signal to the touch panel.

此外，本發明還提供一種資訊處理裝置，其特徵在於，包含一顯示面板、一觸控面板以及至少一個如前所述本發明之TDDI晶片。在一實施例中，該資訊處理裝置為選自於由頭戴式顯示裝置、智慧型手錶、平面顯示裝置、數位相機、車載娛樂系統、智慧型電視、智慧型手機、平板電腦、筆記型電腦、一體式電腦、和門禁裝置所組成群組之中的一種電子裝置。In addition, the present invention also provides an information processing device, which is characterized by including a display panel, a touch panel and at least one TDDI chip of the present invention as described above. In one embodiment, the information processing device is selected from the group consisting of a head-mounted display device, a smart watch, a flat display device, a digital camera, a car entertainment system, a smart TV, a smart phone, a tablet computer, and a notebook computer. An electronic device among the group consisting of , all-in-one computer, and access control device.

為使貴審查委員能進一步瞭解本發明之結構、特徵、目的、與其優點，茲附以圖式及較佳具體實施例之詳細說明如後。In order to enable the review committee to further understand the structure, characteristics, purpose, and advantages of the present invention, drawings and detailed descriptions of preferred embodiments are attached below.

請參閱圖1，其為包含本發明之一種TDDI晶片的一觸控顯示裝置的方塊圖。如圖1所示，該觸控顯示裝置1通常整合在例如為智慧型手機、智慧型手錶、平板電腦等電子裝置之中，且包括：一觸控顯示模組11以及至少一個TDDI晶片12。更詳細地說明，該觸控顯示模組11包括一觸控面板111與一顯示面板112，且該TDDI晶片12包括一控制單元121、一觸控電路122、一顯示驅動電路123以及一多工器電路124。熟悉TDDI晶片之設計與製作的電子工程師應知道，該多工器電路124包括三個多工器或六個多工器，從而與該顯示面板的子畫素採1:3或2:6的耦接方式。因此，該顯示驅動電路123的顯示驅動信號(DATA)係透過該多工器電路124傳送至該顯示面板112。Please refer to FIG. 1 , which is a block diagram of a touch display device including a TDDI chip of the present invention. As shown in FIG. 1 , the touch display device 1 is usually integrated into electronic devices such as smart phones, smart watches, tablets, etc., and includes: a touch display module 11 and at least one TDDI chip 12 . To explain in more detail, the touch display module 11 includes a touch panel 111 and a display panel 112, and the TDDI chip 12 includes a control unit 121, a touch circuit 122, a display driving circuit 123 and a multiplexer. device circuit 124. Electronic engineers who are familiar with the design and production of TDDI chips should know that the multiplexer circuit 124 includes three multiplexers or six multiplexers, so that the sub-pixels of the display panel adopt a 1:3 or 2:6 ratio. Coupling method. Therefore, the display driving signal (DATA) of the display driving circuit 123 is transmitted to the display panel 112 through the multiplexer circuit 124 .

本發明提供一種觸控驅動方法，係應用於該TDDI晶片12之中，且由該控制單元121所執行，從而控制該觸控電路122傳送一觸摸掃描信號Sx至該觸控面板111，使該觸控面板111執行觸摸感測(touch sensing)。圖2顯示本發明之一種觸控驅動方法的第一流程圖。如圖1與圖2所示，本發明之觸控驅動方法主要包括：步驟S1：依據至少一觸控驅動起始時間段與至少一觸控驅動結束時間段決定至少一脈衝寬度；以及步驟S2：產生具有所述至少一脈衝寬度的一觸控驅動使能信號TPS傳送至該觸控電路122，從而驅動該觸控電路122傳送一觸摸掃描信號Sx至該觸控面板111的該信號接收側。 The present invention provides a touch driving method, which is applied to the TDDI chip 12 and executed by the control unit 121, thereby controlling the touch circuit 122 to transmit a touch scan signal Sx to the touch panel 111, so that the The touch panel 111 performs touch sensing. FIG. 2 shows a first flow chart of a touch driving method according to the present invention. As shown in Figures 1 and 2, the touch driving method of the present invention mainly includes: Step S1: Determine at least one pulse width based on at least one touch drive start time period and at least one touch drive end time period; and Step S2: Generate a touch drive enable signal TPS with the at least one pulse width and transmit it to the touch circuit 122, thereby driving the touch circuit 122 to transmit a touch scan signal Sx to the signal of the touch panel 111. receiving side.

在應用本發明之觸控驅動方法的情況下，該TDDI晶片12可執行多種觸摸檢測(或稱觸摸掃描)模式，使得該TDDI晶片12對於顯示面板112的顯示驅動以及對於觸控面板111的觸控驅動可以同步，避免顯示驅動和觸控驅動相互影響。因此，與習知的TDDI晶片相比，應用本發明之觸控驅動方法的TDDI晶片12能夠同時提高顯示面板所呈現的視覺效果以及觸控面板的觸控靈敏度。When the touch driving method of the present invention is applied, the TDDI chip 12 can perform multiple touch detection (or touch scanning) modes, so that the TDDI chip 12 drives the display of the display panel 112 and controls the touch of the touch panel 111 . The control driver can be synchronized to avoid the display driver and touch driver affecting each other. Therefore, compared with the conventional TDDI chip, the TDDI chip 12 using the touch driving method of the present invention can simultaneously improve the visual effect of the display panel and the touch sensitivity of the touch panel.

更詳細地說明，前述至少一觸控驅動起始時間段可包括：一第一觸控驅動起始時間段TPS_ST1與一第二觸控驅動起始時間段TPS_ST2。並且，前述至少一觸控驅動結束時間段可包括：對應該第一觸控驅動起始時間段TPS_ST1的一第一觸控驅動結束時間段TPS_END1以及對應該第二觸控驅動起始時間段TPS_ST2的一第二觸控驅動結束時間段TPS_END2。如圖1所示，本發明特別在該TDDI晶片12內增設耦接該控制單元121的一第一寄存器125與一第二寄存器126，從而利用該第一寄存器125儲存該第一觸控驅動起始時間段TPS_ST1與該第二觸控驅動起始時間段TPS_ST2，並利用該第二寄存器126儲存該第一觸控驅動結束時間段TPS_END1與該第二觸控驅動結束時間段TPS_END2。To explain in more detail, the aforementioned at least one touch drive start time period may include: a first touch drive start time period TPS_ST1 and a second touch drive start time period TPS_ST2. Furthermore, the aforementioned at least one touch drive end time period may include: a first touch drive end time period TPS_END1 corresponding to the first touch drive start time period TPS_ST1 and a second touch drive start time period TPS_ST2 corresponding to the first touch drive start time period TPS_ST1. A second touch drive end time period TPS_END2. As shown in FIG. 1 , the present invention specifically adds a first register 125 and a second register 126 coupled to the control unit 121 in the TDDI chip 12 so that the first register 125 is used to store the first touch drive result. The first touch drive start time period TPS_ST1 and the second touch drive start time period TPS_ST2 are used, and the second register 126 is used to store the first touch drive end time period TPS_END1 and the second touch drive end time period TPS_END2.

圖3為操作在第一觸控驅動模式之下的一水平同步信號(或稱行同步信號)Hsync、一垂直同步信號(或稱幀同步信號)Vsync與一觸摸掃描信號Sx的工作時序圖。並且，圖4為操作在第一觸控驅動模式之下的一水平同步信號Hsync、複數個多工器使能信號(MUX1～6)、一觸控驅動使能信號TPS、與一觸摸掃描信號Sx的工作時序圖。如圖3與圖4所示，該觸控驅動始能信號TPS在一第一觸控驅動模式(Hsync mode 0)下具有一第一脈衝寬度，且該第一脈衝寬度是由該第一觸控驅動起始時間段TPS_ST1和該第一觸控驅動結束時間段TPS_END1所定義。具體地，在該第一觸控驅動模式下，該第一觸控驅動起始時間段TPS_ST1決定該第一脈衝寬度的脈衝上升沿與一水平同步信號Hsync的脈衝下降沿之間的一第一相對時間間隔，且該第一觸控驅動結束時間段TPS_END1決定該第一脈衝寬度的脈衝下降沿與該水平同步信號的脈衝下降沿之間的一第二相對時間間隔。3 is an operating timing diagram of a horizontal synchronization signal (or horizontal synchronization signal) Hsync, a vertical synchronization signal (or frame synchronization signal) Vsync and a touch scan signal Sx operating in the first touch driving mode. Moreover, FIG. 4 shows a horizontal synchronization signal Hsync, a plurality of multiplexer enable signals (MUX1~6), a touch drive enable signal TPS, and a touch scan signal operating in the first touch drive mode. Sx working sequence diagram. As shown in FIGS. 3 and 4 , the touch drive enable signal TPS has a first pulse width in a first touch drive mode (Hsync mode 0), and the first pulse width is determined by the first touch drive mode. The touch drive start period TPS_ST1 and the first touch drive end period TPS_END1 are defined. Specifically, in the first touch drive mode, the first touch drive start period TPS_ST1 determines a first pulse interval between the pulse rising edge of the first pulse width and the pulse falling edge of a horizontal synchronization signal Hsync. The first touch drive end period TPS_END1 determines a second relative time interval between the pulse falling edge of the first pulse width and the pulse falling edge of the horizontal synchronization signal.

如圖1與圖4所示，該多工器電路124接收由該控制單元121所傳送的複數個多工器使能信號(MUX1～6)，且各所述多工器使能信號具有一第三脈衝寬度。在該第一觸控驅動模式下，該觸摸掃描信號Sx具有一第一觸摸掃描脈衝寬度，且該第一觸摸掃描脈衝寬度在一連續時間內落後於最後一個所述第三脈衝寬度。換句話說，在第一觸控驅動模式下，該觸摸掃描信號Sx與顯示驅動信號同步；並且，在複數個多工器使能信號(MUX1～6)對應地完成複數個(如：6個)多工器的使能工作之後，該觸摸掃描信號Sx驅動該觸控面板111進行觸摸感測(touch sensing)。As shown in Figures 1 and 4, the multiplexer circuit 124 receives a plurality of multiplexer enable signals (MUX1~6) transmitted by the control unit 121, and each of the multiplexer enable signals has a third pulse width. In the first touch driving mode, the touch scan signal Sx has a first touch scan pulse width, and the first touch scan pulse width lags behind the last third pulse width in a continuous time. In other words, in the first touch drive mode, the touch scan signal Sx is synchronized with the display drive signal; and in a plurality of multiplexer enable signals (MUX1~6), a plurality of (such as: 6 ) After the multiplexer is enabled, the touch scan signal Sx drives the touch panel 111 to perform touch sensing.

圖5為操作在第二觸控驅動模式之下的水平同步信號Hsync、垂直同步信號Vsync與觸摸掃描信號Sx的工作時序圖。並且，圖6為操作在第二觸控驅動模式之下的水平同步信號、複數個多工器使能信號(MUX1～6)、觸控驅動使能信號TPS、與觸摸掃描信號Sx的工作時序圖。如圖5與圖6所示，該觸控驅動始能信號TPS在一第二觸控驅動模式(Hsync mode 1)下同樣具有一第一脈衝寬度，且該第一脈衝寬度是由該第一觸控驅動起始時間段TPS_ST1和該第一觸控驅動結束時間段TPS_END1所定義。具體地，在該第二觸控驅動模式下，該第一觸控驅動起始時間段TPS_ST1決定該第一脈衝寬度的脈衝上升沿與一水平同步信號Hsync的脈衝下降沿之間的第一相對時間間隔，且該第一觸控驅動結束時間段TPS_END1決定該第一脈衝寬度的脈衝下降沿與該水平同步信號的脈衝下降沿之間的第二相對時間間隔。FIG. 5 is an operating timing diagram of the horizontal synchronization signal Hsync, the vertical synchronization signal Vsync and the touch scan signal Sx operating in the second touch driving mode. Moreover, FIG. 6 shows the operating timing of the horizontal synchronization signal, multiplexer enable signals (MUX1-6), touch drive enable signal TPS, and touch scan signal Sx operating in the second touch drive mode. Figure. As shown in FIG. 5 and FIG. 6 , the touch drive enable signal TPS also has a first pulse width in a second touch drive mode (Hsync mode 1), and the first pulse width is determined by the first The touch drive start period TPS_ST1 and the first touch drive end period TPS_END1 are defined. Specifically, in the second touch drive mode, the first touch drive start period TPS_ST1 determines the first relative relationship between the pulse rising edge of the first pulse width and the pulse falling edge of a horizontal synchronization signal Hsync. time interval, and the first touch drive end period TPS_END1 determines the second relative time interval between the pulse falling edge of the first pulse width and the pulse falling edge of the horizontal synchronization signal.

如圖1與圖6所示，該多工器電路124接收由該控制單元121所傳送的複數個多工器使能信號(MUX1～6)，且各所述多工器使能信號具有一第三脈衝寬度。在該第二觸控驅動模式下，傳送至該觸控面板111的該觸摸掃描信號Sx同樣具有一第一觸摸掃描脈衝寬度，且該第一觸摸掃描脈衝寬度在一連續時間內與複數個所述第三脈衝寬度相對重疊。換句話說，在第二觸控驅動模式下，該觸摸掃描信號Sx與顯示驅動信號同步；並且，在複數個多工器使能信號(MUX1～6)對應地完成複數個(如：6個)多工器的使能工作的過程中，該觸摸掃描信號Sx同步驅動該觸控面板111進行觸摸感測(touch sensing)。As shown in Figures 1 and 6, the multiplexer circuit 124 receives a plurality of multiplexer enable signals (MUX1~6) transmitted by the control unit 121, and each of the multiplexer enable signals has a third pulse width. In the second touch driving mode, the touch scan signal Sx transmitted to the touch panel 111 also has a first touch scan pulse width, and the first touch scan pulse width is consistent with a plurality of all touch scan pulses within a continuous period of time. The third pulse widths overlap relatively. In other words, in the second touch drive mode, the touch scan signal Sx is synchronized with the display drive signal; and in a plurality of multiplexer enable signals (MUX1~6), a plurality of (such as: 6 ) During the enabling operation of the multiplexer, the touch scan signal Sx synchronously drives the touch panel 111 to perform touch sensing.

圖7為操作在第三觸控驅動模式之下的水平同步信號Hsync、垂直同步信號Vsync與觸摸掃描信號Sx的工作時序圖。並且，圖8為操作在第三觸控驅動模式之下的垂直同步信號、MIPI-TX信號、顯示數據使能信號DE、觸控驅動使能信號TPS、與觸摸掃描信號Sx的工作時序圖。如圖7與圖8所示，該觸控驅動始能信號TPS在一第三觸控驅動模式(Vblank mode)下具有一第二脈衝寬度，且該第二脈衝寬度是由該第二觸控驅動起始時間段TPS_ST2和該第二觸控驅動結束時間段TPS_END2。具體地，在該第三觸控驅動模式下，該第二觸控驅動起始時間段TPS_ST2決定該第二脈衝寬度的脈衝上升沿和一垂直前肩(Vertical front porch, VFP)的起始沿之間的一第三相對時間間隔，且該第二觸控驅動結束時間段TPS_END2決定該第二脈衝寬度的脈衝下降沿和一垂直後肩(Vertical back porch, VBP)的結束沿之間的一第四相對時間間隔。FIG. 7 is an operating timing diagram of the horizontal synchronization signal Hsync, the vertical synchronization signal Vsync and the touch scan signal Sx operating in the third touch driving mode. Moreover, FIG. 8 is an operation timing diagram of the vertical synchronization signal, MIPI-TX signal, display data enable signal DE, touch drive enable signal TPS, and touch scan signal Sx operating in the third touch drive mode. As shown in FIG. 7 and FIG. 8 , the touch drive enable signal TPS has a second pulse width in a third touch drive mode (Vblank mode), and the second pulse width is determined by the second touch drive mode. The driving start period TPS_ST2 and the second touch driving end period TPS_END2. Specifically, in the third touch drive mode, the second touch drive start period TPS_ST2 determines the pulse rising edge of the second pulse width and the starting edge of a vertical front porch (Vertical front porch, VFP) a third relative time interval between them, and the second touch drive end period TPS_END2 determines a period between the pulse falling edge of the second pulse width and the end edge of a vertical back porch (Vertical back porch, VBP) Fourth relative time interval.

更詳細地說明，如圖8所示，在該第三觸控驅動模式下，該觸摸掃描信號Sx具有一第二觸摸掃描脈衝寬度，且該第二觸摸掃描脈衝寬度在一連續時間內與一顯示數據使能信號DE的一垂直消隱區間(Vertical blank interval, VBI)相對重疊。換句話說，在第三觸控驅動模式下，該觸摸掃描信號Sx透過幀同步信號(即，Vsync)與顯示幀同步；並且，該觸摸掃描信號Sx在所述垂直消隱區間(Vertical blank interval, VBI)內驅動該觸控面板111進行觸摸感測(touch sensing)。To explain in more detail, as shown in FIG. 8 , in the third touch driving mode, the touch scan signal Sx has a second touch scan pulse width, and the second touch scan pulse width is consistent with a continuous time period. A vertical blank interval (VBI) of the display data enable signal DE relatively overlaps. In other words, in the third touch driving mode, the touch scan signal Sx is synchronized with the display frame through the frame synchronization signal (ie, Vsync); and the touch scan signal Sx is in the vertical blank interval (Vertical blank interval). , VBI) to drive the touch panel 111 to perform touch sensing.

圖9為操作在第四觸控驅動模式之下的水平同步信號Hsync、垂直同步信號Vsync與觸摸掃描信號Sx的工作時序圖。依據本發明之設計，第四觸控驅動模式(Hsync & Vblank mixed mode)可為前述第一觸控驅動模式(Hsync mode 0)和前述第三觸控驅動模式(Vblank mode)的混合，亦可為前述第二觸控驅動模式(Hsync mode 1)和前述第三觸控驅動模式(Vblank mode)的混合。FIG. 9 is an operating timing diagram of the horizontal synchronization signal Hsync, the vertical synchronization signal Vsync and the touch scan signal Sx operating in the fourth touch driving mode. According to the design of the present invention, the fourth touch drive mode (Hsync & Vblank mixed mode) can be a mixture of the aforementioned first touch drive mode (Hsync mode 0) and the aforementioned third touch drive mode (Vblank mode), or it can be It is a mixture of the aforementioned second touch drive mode (Hsync mode 1) and the aforementioned third touch drive mode (Vblank mode).

舉例而言，若第四觸控驅動模式為第一觸控驅動模式和第三觸控驅動模式的混合，則由該控制單元121傳送至該觸控電路122的觸控驅動始能信號TPS同時具有該第一脈衝寬度(參見圖四的TPS)與該第二脈衝寬度(參見圖八的TPS)，使得該觸摸掃描信號Sx同時具有至少一所述第一觸摸掃描脈衝寬度與至少一所述第二觸摸掃描脈衝寬度，該第一觸摸掃描脈衝寬度在一連續時間內落後於最後一個所述第三脈衝寬度，且該第二觸摸掃描脈衝寬度在一連續時間內與一顯示數據使能信號DE的一垂直消隱區間(Vertical blank interval, VBI)相對重疊。For example, if the fourth touch drive mode is a mixture of the first touch drive mode and the third touch drive mode, the touch drive enabling signal TPS transmitted from the control unit 121 to the touch circuit 122 simultaneously Having the first pulse width (see TPS in Figure 4) and the second pulse width (see TPS in Figure 8), the touch scan signal Sx has at least one of the first touch scan pulse width and at least one of the A second touch scan pulse width, the first touch scan pulse width lags behind the last third pulse width in a continuous time, and the second touch scan pulse width is consistent with a display data enable signal in a continuous time A vertical blank interval (VBI) of DE is relatively overlapping.

再舉例而言，若第四觸控驅動模式為第二觸控驅動模式和第三觸控驅動模式的混合，則由該控制單元121傳送至該觸控電路122的觸控驅動始能信號TPS同時具有該第一脈衝寬度(參見圖六的TPS)與該第二脈衝寬度(參見圖八的TPS)，使得該觸摸掃描信號Sx同時具有至少一所述第一觸摸掃描脈衝寬度與至少一所述第二觸摸掃描脈衝寬度，該第一觸摸掃描脈衝寬度在一連續時間內與複數個所述第三脈衝寬度相對重疊，且該第二觸摸掃描脈衝寬度在一連續時間內與一顯示數據使能信號DE的一垂直消隱區間(Vertical blank interval, VBI)相對重疊。For another example, if the fourth touch drive mode is a mixture of the second touch drive mode and the third touch drive mode, the touch drive enable signal TPS transmitted from the control unit 121 to the touch circuit 122 Having the first pulse width (see TPS in Figure 6) and the second pulse width (see TPS in Figure 8) at the same time, such that the touch scan signal Sx has at least one first touch scan pulse width and at least one The second touch scan pulse width, the first touch scan pulse width relatively overlaps with a plurality of the third pulse widths within a continuous time, and the second touch scan pulse width overlaps with a display data within a continuous time A vertical blank interval (VBI) of the energy signal DE relatively overlaps.

另一方面，圖10顯示本發明之一種觸控驅動方法的第二流程圖。並且，圖11為操作在第五觸控驅動模式(Free run mode)之下的一垂直同步信號Vsync與一觸摸掃描信號Sx的工作時序圖。如圖1、圖10與圖11所示，可以在該TDDI晶片12之中同時整合本發明之另一套觸控驅動方法，其主要包括：步驟S1a：依據一觸發周期產生具有至少一脈衝寬度的一觸控驅動使能信號TPS；步驟S2a：傳送該觸控驅動使能信號TPS至該觸控電路122，從而驅動該觸控電路122傳送一觸摸掃描信號Sx至該觸控面板111的該信號接收側。 On the other hand, FIG. 10 shows a second flowchart of a touch driving method according to the present invention. Moreover, FIG. 11 is an operation timing diagram of a vertical synchronization signal Vsync and a touch scan signal Sx operating in the fifth touch drive mode (Free run mode). As shown in Figure 1, Figure 10 and Figure 11, another set of touch driving methods of the present invention can be integrated into the TDDI chip 12 at the same time, which mainly includes: Step S1a: Generate a touch drive enable signal TPS with at least one pulse width according to a trigger cycle; Step S2a: Send the touch drive enable signal TPS to the touch circuit 122, thereby driving the touch circuit 122 to send a touch scan signal Sx to the signal receiving side of the touch panel 111.

在應用本發明之觸控驅動方法的情況下，如圖1、圖10與圖11所示，該控制單元11定義了一種新的觸控掃描時序，使得觸摸掃描信號Sx與顯示驅動信號及/或幀同步信號不同步，並依據一預定的觸摸掃描頻率驅動該觸控面板112進行觸摸感測。具體地，當所述觸摸掃描頻率為120Hz時，則該控制單元11啟用內部Timer(即，看門狗程式)，從而以每8.3ms為一個觸發周期從而產生一具有至少一脈衝寬度的一觸控驅動使能信號TPS至該觸控觸控電路122，使該觸控觸控電路122傳送一觸摸掃描信號Sx至該觸控面板111，驅動該觸控面板112進行觸摸感測。When the touch driving method of the present invention is applied, as shown in Figure 1, Figure 10 and Figure 11, the control unit 11 defines a new touch scanning timing sequence, so that the touch scanning signal Sx and the display driving signal and/or Or the frame synchronization signal is out of synchronization, and the touch panel 112 is driven to perform touch sensing according to a predetermined touch scan frequency. Specifically, when the touch scanning frequency is 120 Hz, the control unit 11 activates the internal timer (ie, watchdog program), so that every 8.3 ms is a trigger cycle to generate a touch with at least a pulse width. Controlling the drive enable signal TPS to the touch touch circuit 122 causes the touch touch circuit 122 to transmit a touch scan signal Sx to the touch panel 111 to drive the touch panel 112 to perform touch sensing.

如此，上述係已完整且清楚地說明本發明之觸控驅動方法；並且，經由上述可得知本發明係具有下列之優點：In this way, the above has completely and clearly explained the touch driving method of the present invention; and from the above, it can be known that the present invention has the following advantages:

(1)本發明提供一種觸控驅動方法，係應用於一TDDI晶片之中。在應用本發明之觸控驅動方法的情況下，該TDDI晶片可執行多種觸摸檢測(或稱觸摸掃描)模式，使得該TDDI晶片對於顯示面板的顯示驅動以及對於觸控面板的觸控驅動可以同步，避免顯示驅動和觸控驅動相互影響。因此，與習知的TDDI晶片相比，應用本發明之觸控驅動方法的TDDI晶片能夠同時提高顯示面板所呈現的視覺效果以及觸控面板的觸控靈敏度。(1) The present invention provides a touch driving method, which is applied to a TDDI chip. When the touch driving method of the present invention is applied, the TDDI chip can perform multiple touch detection (or touch scanning) modes, so that the TDDI chip can synchronize the display driving of the display panel and the touch driving of the touch panel. , to prevent the display driver and touch driver from affecting each other. Therefore, compared with the conventional TDDI chip, the TDDI chip using the touch driving method of the present invention can simultaneously improve the visual effect of the display panel and the touch sensitivity of the touch panel.

(2)並且，本發明同時提供一種TDDI晶片，其包括一控制單元、一觸控電路、一顯示驅動電路以及一多工器電路，其中該顯示驅動電路用以耦接一顯示面板，且該觸控電路用以耦接一觸控面板；其特徵在於，該控制單元執行如前所述本發明之觸控驅動方法以控制該觸控電路傳送一觸摸掃描信號至該觸控面板。(2) Furthermore, the present invention also provides a TDDI chip, which includes a control unit, a touch circuit, a display driving circuit and a multiplexer circuit, wherein the display driving circuit is used to couple to a display panel, and the The touch circuit is used to couple to a touch panel; it is characterized in that the control unit executes the touch driving method of the present invention as described above to control the touch circuit to transmit a touch scan signal to the touch panel.

(3)此外，本發明還提供一種資訊處理裝置，其特徵在於，包含一顯示面板、一觸控面板以及至少一個如前所述本發明之TDDI晶片。在一實施例中，該資訊處理裝置為選自於由頭戴式顯示裝置、智慧型手錶、平面顯示裝置、數位相機、車載娛樂系統、智慧型電視、智慧型手機、平板電腦、筆記型電腦、一體式電腦、和門禁裝置所組成群組之中的一種電子裝置。(3) In addition, the present invention also provides an information processing device, which is characterized by including a display panel, a touch panel and at least one TDDI chip of the present invention as described above. In one embodiment, the information processing device is selected from the group consisting of a head-mounted display device, a smart watch, a flat display device, a digital camera, a car entertainment system, a smart TV, a smart phone, a tablet computer, and a notebook computer. An electronic device among the group consisting of , all-in-one computer, and access control device.

必須加以強調的是，前述本案所揭示者乃為較佳實施例，舉凡局部之變更或修飾而源於本案之技術思想而為熟習該項技藝之人所易於推知者，俱不脫本案之專利權範疇。It must be emphasized that the foregoing disclosed in this case are preferred embodiments. Any partial changes or modifications derived from the technical ideas of this case and easily inferred by those familiar with the art do not deviate from the patent of this case. category of rights.

綜上所陳，本案無論目的、手段與功效，皆顯示其迥異於習知技術，且其首先發明合於實用，確實符合發明之專利要件，懇請貴審查委員明察，並早日賜予專利俾嘉惠社會，是為至禱。To sum up, regardless of the purpose, means and effects of this case, it shows that it is completely different from the conventional technology, and that the invention is practical first, and indeed meets the patent requirements for inventions. I sincerely ask the review committee to take a clear look and grant the patent as soon as possible for your benefit. Society is a prayer for the Supreme Being.

1:觸控顯示裝置1:Touch display device

11:觸控顯示模組11:Touch display module

111:觸控面板111:Touch panel

112:顯示面板112:Display panel

12:TDDI晶片12:TDDI chip

121:控制單元121:Control unit

122:觸控電路122:Touch circuit

123:顯示驅動電路123:Display drive circuit

124:多工器電路124: Multiplexer circuit

125:第一寄存器125: First register

126:第二寄存器126: Second register

S1:依據至少一觸控驅動起始時間段與至少一觸控驅動結束時間段決定至少一脈衝寬度S1: Determine at least one pulse width based on at least one touch drive start time period and at least one touch drive end time period

S2:產生具有所述至少一脈衝寬度的一觸控驅動使能信號傳送至該觸控電路，從而驅動該觸控電路傳送一觸摸掃描信號至該觸控面板的該信號接收側S2: Generate a touch drive enable signal with the at least one pulse width and transmit it to the touch circuit, thereby driving the touch circuit to transmit a touch scan signal to the signal receiving side of the touch panel.

S1a:依據一觸發周期產生具有至少一脈衝寬度的一觸控驅動使能信號S1a: Generate a touch drive enable signal with at least one pulse width according to a trigger cycle

S2a:傳送該觸控驅動使能信號至該觸控電路，從而驅動該觸控電路傳送一觸摸掃描信號至該觸控面板的該信號接收側S2a: Send the touch drive enable signal to the touch circuit, thereby driving the touch circuit to send a touch scan signal to the signal receiving side of the touch panel.

圖1為包含本發明之一種TDDI晶片的一觸控顯示裝置的方塊圖；圖2為本發明之一種觸控驅動方法的第一流程圖；圖3為操作在第一觸控驅動模式之下的水平同步信號、垂直同步信號與觸摸掃描信號的工作時序圖；圖4為操作在第一觸控驅動模式之下的水平同步信號、複數個多工器使能信號、觸控驅動使能信號、與觸摸掃描信號的工作時序圖；圖5為操作在第二觸控驅動模式之下的水平同步信號、垂直同步信號與觸摸掃描信號的工作時序圖；圖6為操作在第二觸控驅動模式之下的水平同步信號、複數個多工器使能信號、觸控驅動使能信號、與觸摸掃描信號的工作時序圖；圖7為操作在第三觸控驅動模式之下的水平同步信號、垂直同步信號與觸摸掃描信號的工作時序圖；圖8為操作在第三觸控驅動模式之下的垂直同步信號、MIPI-TX信號、顯示數據使能信號、觸控驅動使能信號、與觸摸掃描信號的工作時序圖；圖9為操作在第四觸控驅動模式之下的水平同步信號、垂直同步信號與觸摸掃描信號的工作時序圖；圖10為本發明之一種觸控驅動方法的第二流程圖；以及圖11為操作在第五觸控驅動模式之下的垂直同步信號與觸摸掃描信號的工作時序圖。 Figure 1 is a block diagram of a touch display device including a TDDI chip of the present invention; Figure 2 is a first flow chart of a touch driving method according to the present invention; Figure 3 is an operating timing diagram of the horizontal synchronization signal, vertical synchronization signal and touch scan signal operating in the first touch drive mode; Figure 4 is an operating timing diagram of the horizontal synchronization signal, multiplexer enable signals, touch drive enable signals, and touch scan signals operating in the first touch drive mode; Figure 5 is an operating timing diagram of the horizontal synchronization signal, vertical synchronization signal and touch scan signal operating in the second touch drive mode; Figure 6 is an operating timing diagram of the horizontal synchronization signal, multiplexer enable signals, touch drive enable signals, and touch scan signals operating in the second touch drive mode; Figure 7 is a working timing diagram of the horizontal synchronization signal, vertical synchronization signal and touch scan signal operating in the third touch drive mode; Figure 8 is a working timing diagram of the vertical synchronization signal, MIPI-TX signal, display data enable signal, touch drive enable signal, and touch scan signal operating in the third touch drive mode; Figure 9 is an operating timing diagram of the horizontal synchronization signal, vertical synchronization signal and touch scan signal operating in the fourth touch drive mode; Figure 10 is a second flow chart of a touch driving method according to the present invention; and FIG. 11 is an operating timing diagram of the vertical synchronization signal and the touch scan signal operating in the fifth touch driving mode.

S1:依據至少一觸控驅動起始時間段與至少一觸控驅動結束時間段決定至少一脈衝寬度 S1: Determine at least one pulse width based on at least one touch drive start time period and at least one touch drive end time period

S2:產生具有所述至少一脈衝寬度的一觸控驅動使能信號傳送至該觸控電路，從而驅動該觸控電路傳送一觸摸掃描信號至該觸控面板的該信號接收側 S2: Generate a touch drive enable signal with the at least one pulse width and transmit it to the touch circuit, thereby driving the touch circuit to transmit a touch scan signal to the signal receiving side of the touch panel.

Claims

一種觸控驅動方法，應用於包含一控制單元、一觸控電路、一顯示驅動電路以及一多工器電路的一TDDI晶片之中，其中該觸控電路耦接一觸控面板的一信號接收側與一信號輸出側，且該觸控驅動方法由該控制單元所執行，並包括：依據至少一觸控驅動起始時間段與至少一觸控驅動結束時間段決定至少一脈衝寬度；以及產生具有所述至少一脈衝寬度的一觸控驅動使能信號傳送至該觸控電路，從而驅動該觸控電路傳送一觸摸掃描信號至該觸控面板的該信號接收側。 A touch driving method is applied to a TDDI chip including a control unit, a touch circuit, a display driving circuit and a multiplexer circuit, wherein the touch circuit is coupled to a signal receiver of a touch panel side and a signal output side, and the touch driving method is executed by the control unit and includes: determining at least one pulse width based on at least one touch driving starting time period and at least one touch driving ending time period; and generating A touch drive enable signal with the at least one pulse width is transmitted to the touch circuit, thereby driving the touch circuit to transmit a touch scan signal to the signal receiving side of the touch panel.

如請求項1所述之觸控驅動方法，其中，該至少一觸控驅動起始時間段包括一第一觸控驅動起始時間段TPS_ST1與一第二觸控驅動起始時間段TPS_ST2，且該至少一觸控驅動結束時間段包括對應該第一觸控驅動起始時間段的一第一觸控驅動結束時間段TPS_END1以及對應該第二觸控驅動起始時間段的一第二觸控驅動結束時間段TPS_END2。 The touch driving method according to claim 1, wherein the at least one touch drive starting time period includes a first touch driving starting time period TPS_ST1 and a second touch driving starting time period TPS_ST2, and The at least one touch drive end time period includes a first touch drive end time period TPS_END1 corresponding to the first touch drive start time period and a second touch drive start time period corresponding to the second touch drive start time period. Drive end time period TPS_END2.

如請求項2所述之觸控驅動方法，其中，該TDDI晶片12更包括：耦接該控制單元121的一第一寄存器125與一第二寄存器126，該第一寄存器125儲存該第一觸控驅動起始時間段TPS_ST1與該第二觸控驅動起始時間段TPS_ST2，且該第二寄存器126儲存該第一觸控驅動結束時間段TPS_END1與該第二觸控驅動結束時間段TPS_END2。 The touch driving method of claim 2, wherein the TDDI chip 12 further includes: a first register 125 and a second register 126 coupled to the control unit 121, the first register 125 stores the first touch The touch drive start time period TPS_ST1 and the second touch drive start time period TPS_ST2, and the second register 126 stores the first touch drive end time period TPS_END1 and the second touch drive end time period TPS_END2.

如請求項2所述之觸控驅動方法，其中，該觸控驅動始能信號TPS在一第一觸控驅動模式下具有一第一脈衝寬度，在一第二觸控驅動模式下同樣具有所述第一脈衝寬度，在一第三觸控驅動模式下具有一第二脈衝寬度，且在一第四觸控驅動模式下同時具有該第一脈衝寬度與該第二脈衝寬度。The touch driving method according to claim 2, wherein the touch driving enable signal TPS has a first pulse width in a first touch driving mode and also has the same pulse width in a second touch driving mode. The first pulse width has a second pulse width in a third touch driving mode, and has both the first pulse width and the second pulse width in a fourth touch driving mode.

如請求項4所述之觸控驅動方法，其中，在該第一觸控驅動模式和該第二觸控驅動模式下，該第一觸控驅動起始時間段TPS_ST1決定該第一脈衝寬度的脈衝上升沿與一水平同步信號Hsync的脈衝下降沿之間的一第一相對時間間隔，且該第一觸控驅動結束時間段TPS_END1決定該第一脈衝寬度的脈衝下降沿與該水平同步信號的脈衝下降沿之間的一第二相對時間間隔。The touch driving method according to claim 4, wherein in the first touch driving mode and the second touch driving mode, the first touch driving starting period TPS_ST1 determines the first pulse width A first relative time interval between the rising edge of the pulse and the falling edge of the horizontal synchronization signal Hsync, and the first touch drive end period TPS_END1 determines the falling edge of the first pulse width and the falling edge of the horizontal synchronization signal. A second relative time interval between falling edges of pulses.

如請求項4所述之觸控驅動方法，其中，該多工器電路124接收由該控制單元121所傳送的複數個多工器使能信號(MUX1～6)，且各所述多工器使能信號具有一第三脈衝寬度；在該第一觸控驅動模式下，該觸摸掃描信號Sx具有一第一觸摸掃描脈衝寬度，且該第一觸摸掃描脈衝寬度在一連續時間內落後於最後一個所述第三脈衝寬度。The touch driving method according to claim 4, wherein the multiplexer circuit 124 receives a plurality of multiplexer enable signals (MUX1-6) transmitted by the control unit 121, and each of the multiplexers The enable signal has a third pulse width; in the first touch drive mode, the touch scan signal Sx has a first touch scan pulse width, and the first touch scan pulse width lags behind the last one in a continuous time a third pulse width.

如請求項6所述之觸控驅動方法，其中，在該第二觸控驅動模式下，該第一觸摸掃描脈衝寬度在一連續時間內與複數個所述第三脈衝寬度相對重疊。The touch driving method according to claim 6, wherein in the second touch driving mode, the first touch scan pulse width relatively overlaps with a plurality of the third pulse widths within a continuous period of time.

如請求項5所述之觸控驅動方法，其中，在該第三觸控驅動模式，該第二觸控驅動起始時間段TPS_ST2決定該第二脈衝寬度的脈衝上升沿和一垂直前肩(Vertical front porch,VFP)的起始沿之間的一第三相對時間間隔，且該第二觸控驅動結束時間段TPS_END2決定該第二脈衝寬度的脈衝下降沿和一垂直後肩(Vertical back porch,VBP)的結束沿之間的一第四相對時間間隔。 The touch driving method according to claim 5, wherein in the third touch driving mode, the second touch driving starting period TPS_ST2 determines the pulse rising edge of the second pulse width and a vertical leading shoulder ( A third relative time interval between the starting edges of Vertical front porch (VFP), and the second touch drive end period TPS_END2 determines the pulse falling edge of the second pulse width and a vertical back shoulder (Vertical back porch , a fourth relative time interval between the ending edges of VBP).

如請求項7所述之觸控驅動方法，其中，在該第三觸控驅動模式下，該觸摸掃描信號Sx具有一第二觸摸掃描脈衝寬度，且該第二觸摸掃描脈衝寬度在一連續時間內與一顯示數據使能信號DE的一垂直消隱區間(Vertical blank interval,VBI)相對重疊。 The touch driving method according to claim 7, wherein in the third touch driving mode, the touch scan signal Sx has a second touch scan pulse width, and the second touch scan pulse width is a continuous time It relatively overlaps with a vertical blanking interval (Vertical blank interval, VBI) of a display data enable signal DE.

如請求項9所述之觸控驅動方法，其中，在該第四觸控驅動模式下，該觸摸掃描信號Sx同時具有至少一所述第一觸摸掃描脈衝寬度與至少一所述第二觸摸掃描脈衝寬度，該第一觸摸掃描脈衝寬度在一連續時間內落後於最後一個所述第三脈衝寬度，且該第二觸摸掃描脈衝寬度在一連續時間內與一顯示數據使能信號DE的一垂直消隱區間(Vertical blank interval,VBI)相對重疊。 The touch driving method according to claim 9, wherein in the fourth touch driving mode, the touch scan signal Sx has at least one of the first touch scan pulse width and at least one of the second touch scan pulse width. Pulse width, the first touch scan pulse width lags behind the last third pulse width in a continuous time, and the second touch scan pulse width is perpendicular to a display data enable signal DE in a continuous time The blanking intervals (Vertical blank interval, VBI) are relatively overlapping.

如請求項9所述之觸控驅動方法，其中，在該第四觸控驅動模式下，該觸摸掃描信號Sx同時具有至少一所述第一觸摸掃描脈衝寬度與至少一所述第二觸摸掃描脈衝寬度，該第一觸摸掃描脈衝寬度在一連續時間內與複數個所述第三脈衝寬度相對重疊，且該第二觸摸掃描脈衝寬度在一連續時間內與一顯示數據使能信號DE的一垂直消隱區間(Vertical blank interval,VBI)相對重疊。 The touch driving method according to claim 9, wherein in the fourth touch driving mode, the touch scan signal Sx has at least one of the first touch scan pulse width and at least one of the second touch scan pulse width. Pulse width, the first touch scan pulse width relatively overlaps with a plurality of third pulse widths within a continuous time, and the second touch scan pulse width overlaps with a display data enable signal DE within a continuous time The vertical blank intervals (VBI) are relatively overlapping.

一種觸控驅動方法，應用於包含一控制單元、一觸控電路、一顯示驅動電路以及一多工器電路的一TDDI晶片之中，其中該觸控電路耦接一觸控面板的一信號接收側與一信號輸出側，且該觸控驅動方法由該控制單元所執行，並包括：依據一觸發周期產生具有至少一脈衝寬度的一觸控驅動使能信號；傳送該觸控驅動使能信號至該觸控電路，從而驅動該觸控電路傳送一觸摸掃描信號至該觸控面板的該信號接收側。 A touch driving method is applied to a TDDI chip including a control unit, a touch circuit, a display driving circuit and a multiplexer circuit, wherein the touch circuit is coupled to a signal receiver of a touch panel side and a signal output side, and the touch driving method is executed by the control unit and includes: Generate a touch drive enable signal with at least one pulse width according to a trigger cycle; The touch drive enable signal is sent to the touch circuit, thereby driving the touch circuit to send a touch scan signal to the signal receiving side of the touch panel.

一種TDDI晶片，包括一控制單元、一觸控電路、一顯示驅動電路以及一多工器電路，其中該顯示驅動電路用以耦接一顯示面板，且該觸控電路用以耦接一觸控面板；其特徵在於，該控制單元執行如請求項1至請求項11之中任一項所述之觸控驅動方法以控制該觸控電路傳送一觸摸掃描信號至該觸控面板。A TDDI chip includes a control unit, a touch circuit, a display driving circuit and a multiplexer circuit, wherein the display driving circuit is used to couple to a display panel, and the touch circuit is used to couple to a touch Panel; characterized in that the control unit executes the touch driving method as described in any one of claims 1 to 11 to control the touch circuit to transmit a touch scan signal to the touch panel.

一種資訊處理裝置，其特徵在於，包含一顯示面板、一觸控面板以及至少一個如請求項13所述之TDDI晶片。An information processing device, characterized by including a display panel, a touch panel and at least one TDDI chip as described in claim 13.