TWI780748B - Driving method of force touch and touch display system thereof - Google Patents

Driving method of force touch and touch display system thereof Download PDF

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TWI780748B
TWI780748B TW110120599A TW110120599A TWI780748B TW I780748 B TWI780748 B TW I780748B TW 110120599 A TW110120599 A TW 110120599A TW 110120599 A TW110120599 A TW 110120599A TW I780748 B TWI780748 B TW I780748B
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touch
touch sensing
time interval
driving
electrodes
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TW202248823A (en
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張勁淳
沈介俊
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力領科技股份有限公司
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • G06F3/04144—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position using an array of force sensing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position

Abstract

A driving method of force touch for a touch display system is disclosed. The touch display system includes a display panel and a plurality of touch sensing electrodes, and the driving method includes performing, by the plurality of touch sensing electrodes, touch sensing according to a touch driving signal and a touch sensing signal in a first time period; and driving the plurality of touch sensing electrodes to perform force touch sensing according to a plurality of scan driving signals of the display panel, which are taken as a force touch driving signal, in a second period.

Description

壓力觸控的驅動方法及其相關觸控顯示系統 Driving method of pressure touch and related touch display system

本發明係指一種壓力觸控的驅動方法及其相關觸控顯示系統，尤指一種不需增加額外元件以執行壓力觸控感測的壓力觸控的驅動方法及其相關觸控顯示系統。 The present invention refers to a pressure touch driving method and its related touch display system, in particular to a pressure touch driving method and its related touch display system without adding additional components to perform pressure touch sensing.

隨著觸控技術的進步與發展，觸控顯示器已廣泛地應用於各種電子裝置，例如行動電話、平板電腦、個人數位助理、筆記型電腦及其他非移動顯示裝置等，以觸控感測技術取代傳統鍵盤、滑鼠，進而實現更直覺的人機介面。其中，壓力觸控技術將觸控資訊自原有觸控顯示器的二維座標與觸控力道結合，提供人機介面的新的維度。 With the advancement and development of touch technology, touch displays have been widely used in various electronic devices, such as mobile phones, tablet computers, personal digital assistants, notebook computers and other non-mobile display devices. Replace the traditional keyboard and mouse to achieve a more intuitive human-machine interface. Among them, the pressure touch technology combines the touch information from the two-dimensional coordinates of the original touch display with the touch force to provide a new dimension of the human-machine interface.

現有的壓力觸控技術皆需額外設置壓力觸控元件與驅動晶片，以執行壓力觸控感測。在此情形下，由於使用者對現有的行動裝置的厚度與品質要求越來越高，若是在原有的觸控顯示器的架構下，再額外設置壓力觸控感測的元件，將造成製程、良率及成本上的負擔。舉例來說，若壓力觸控的感應電極端(RX)製作成薄膜以整合於一背光模組，並且於顯示器背板背鍍透明導電薄膜，或者貼合透明導電薄膜作為驅動電極端(TX)時，則於製程階段需要額外 的RX及TX製程，不僅增加觸控顯示器的厚度，也產生觸控顯示器的良率問題。 Existing pressure touch technologies require additional pressure touch elements and driver chips to implement pressure touch sensing. In this case, because users have higher and higher requirements on the thickness and quality of existing mobile devices, if additional pressure touch sensing components are installed under the original touch display structure, it will result in poor manufacturing process and poor performance. rate and cost burden. For example, if the sensing electrode terminal (RX) of the pressure touch is made into a thin film to be integrated into a backlight module, and a transparent conductive film is coated on the back of the display, or a transparent conductive film is bonded as the driving electrode terminal (TX) , an additional The advanced RX and TX processes not only increase the thickness of the touch display, but also cause problems with the yield of the touch display.

因此，在現有的觸控技術的架構下，如何降低製程成本並且降低整體觸控顯示器的厚度已成為業界亟欲探討的議題。 Therefore, under the framework of the existing touch technology, how to reduce the manufacturing cost and reduce the thickness of the whole touch display has become an urgent topic to be discussed in the industry.

為了解決上述的問題，本發明提供一種壓力觸控的驅動方法及其相關觸控顯示系統，在不需額外設置壓力觸控元件的情形下，以執行壓力觸控感測。 In order to solve the above problems, the present invention provides a pressure touch driving method and its related touch display system, which can perform pressure touch sensing without additional pressure touch elements.

本發明揭露一種壓力觸控的驅動方法，用於一觸控顯示系統，其中該觸控顯示系統包含一面板及複數觸控感測電極，該驅動方法包含有：於一第一時間區間內，該些觸控感測電極根據一觸控驅動訊號及一觸控感測訊號以執行觸控感測；以及於一第二時間區間內，以該顯示面板之複數個掃描驅動訊號作為一壓力觸控驅動訊號，以驅動該些觸控感測電極執行壓力觸控感測。應用本發明之壓力觸控的驅動方法，則觸控顯示系統不需額外設置壓力觸控元件，即可透過驅動觸控感測電極於不同的時間區間內，分別執行觸控感測及壓力觸控感測。 The present invention discloses a pressure touch driving method for a touch display system, wherein the touch display system includes a panel and a plurality of touch sensing electrodes. The driving method includes: within a first time interval, The touch sensing electrodes perform touch sensing according to a touch driving signal and a touch sensing signal; and in a second time interval, use a plurality of scan driving signals of the display panel as a pressure touch controlling the driving signal to drive the touch sensing electrodes to perform pressure touch sensing. Applying the pressure touch driving method of the present invention, the touch display system does not need additional pressure touch elements, and can separately perform touch sensing and pressure touch by driving the touch sensing electrodes in different time intervals. control sensing.

本發明另揭露一種觸控顯示系統，包含有一顯示面板，複數觸控感測電極，以及一控制單元。該顯示面板包含複數個掃描線，該些掃描線接收複數個掃描驅動訊號；該些觸控感測電極耦接於該顯示面板；控制單元耦接於該些觸控感測電極，該控制單元於一第一時間區間內控制該些觸控感測電極根據一觸控驅動訊號及一觸控感測訊號以執行觸控感測；以及該控制單元於一第二 時間區間內，以該顯示面板之複數個掃描驅動訊號作為一壓力觸控驅動訊號，以驅動該些觸控感測電極執行壓力觸控感測。應用本發明之觸控顯示系統，則觸控顯示系統不需額外設置壓力觸控元件，即可透過驅動觸控感測電極於不同的時間區間內，分別執行觸控感測及壓力觸控感測。 The present invention further discloses a touch display system, which includes a display panel, a plurality of touch sensing electrodes, and a control unit. The display panel includes a plurality of scanning lines, and the scanning lines receive a plurality of scanning driving signals; the touch sensing electrodes are coupled to the display panel; the control unit is coupled to the touch sensing electrodes, and the control unit controlling the touch sensing electrodes to perform touch sensing according to a touch driving signal and a touch sensing signal in a first time interval; and the control unit in a second time interval In the time interval, a plurality of scanning driving signals of the display panel are used as a pressure touch driving signal to drive the touch sensing electrodes to perform pressure touch sensing. Applying the touch display system of the present invention, the touch display system does not need additional pressure touch elements, and can perform touch sensing and pressure touch sensing by driving the touch sensing electrodes in different time intervals. Measurement.

10,60,70:觸控顯示系統 10,60,70: touch display system

102:顯示面板 102: Display panel

104:觸控感測電極 104: Touch sensing electrodes

106:控制單元 106: Control unit

108:掃描驅動電路 108: Scan driving circuit

602,702:顯示器薄膜電晶體基底 602,702: Display thin film transistor substrate

604,704:介質 604,704: Medium

606,706:彩色濾光片基底 606,706: Color filter substrates

708:觸控面板基底 708: Touch panel substrate

C1,C2:耦合波形 C1, C2: Coupling Waveform

FT RX:壓力觸控感測訊號 FT RX: Pressure touch sensing signal

Gate(n),Gate(n+1),...,Gate(n+39),Gate(n+40),Gate(n+41),Gate(n+42):掃描線驅動訊號 Gate(n), Gate(n+1),...,Gate(n+39), Gate(n+40), Gate(n+41), Gate(n+42): scan line drive signal

Gn,Gn+1,...,Gn+39,Gn+40,Gn+41,Gn+42:致動時間 G n ,G n+1 ,...,G n+39 ,G n+40 ,G n+41 ,G n+42 : actuation time

NP:不重疊區間 NP: non-overlapping intervals

T1:第一區間 T1: first interval

T2:第二區間 T2: the second interval

第1圖為本發明實施例之一觸控顯示系統之示意圖。 FIG. 1 is a schematic diagram of a touch display system according to an embodiment of the present invention.

第2圖至第4圖為本發明實施例之觸控顯示系統之一驅動時序之示意圖。 FIG. 2 to FIG. 4 are schematic diagrams of a driving sequence of a touch display system according to an embodiment of the present invention.

第5圖為本發明實施例之一驅動方法之示意圖。 FIG. 5 is a schematic diagram of a driving method according to an embodiment of the present invention.

第6圖及第7圖為本發明實施例之觸控顯示系統之示意圖。 FIG. 6 and FIG. 7 are schematic diagrams of a touch display system according to an embodiment of the present invention.

請參考第1圖，第1圖為本發明實施例之一觸控顯示系統10之示意圖。觸控顯示系統10包含有一顯示面板102、複數觸控感測電極104及一控制單元106。觸控顯示系統10可為智慧手機、平板電腦等具有觸控功能的觸控顯示器。顯示面板102可為一外掛式(Out-cell)或一外嵌式(On-cell)觸控面板，其中，顯示面板102可另包含一時序控制電路(Timing Controller)、一源極驅動電路(Source Driver)、一掃描驅動電路108(Gate Driver)等，其中源極驅動電路與掃描驅動電路108根據時序控制電路的同步訊號及控制訊號驅動顯示面板102的各個像素。控制單元106於不同時間區間內執行觸控感測及壓力觸控感測。也就是說，控制單元106於一第一時間區間內，該些觸控感測電極104根據一觸控驅動訊號(TP TX)及一觸控感測訊號(TP RX)以執行觸控感測；以及控制單元106於一第二時間區間內，以該顯示面板102之複數個掃描驅動訊號作為一壓 力觸控驅動訊號(FT TX)，以驅動該些觸控感測電極104執行壓力觸控感測，其中掃描驅動電路108產生該些掃描驅動訊號，並輸出至該顯示面板102的複數個掃描線。如此一來，本發明之觸控顯示系統10不需額外設置壓力觸控元件，即可分時地執行觸控感測及壓力觸控感測。 Please refer to FIG. 1 , which is a schematic diagram of a touch display system 10 according to an embodiment of the present invention. The touch display system 10 includes a display panel 102 , a plurality of touch sensing electrodes 104 and a control unit 106 . The touch display system 10 can be a touch display with a touch function such as a smart phone or a tablet computer. The display panel 102 can be an out-cell or an on-cell touch panel, wherein the display panel 102 can further include a timing control circuit (Timing Controller), a source drive circuit ( Source Driver), a scan driver circuit 108 (Gate Driver), etc., wherein the source driver circuit and the scan driver circuit 108 drive each pixel of the display panel 102 according to the synchronization signal and the control signal of the timing control circuit. The control unit 106 performs touch sensing and pressure touch sensing in different time intervals. That is to say, the control unit 106 performs touch sensing according to a touch driving signal (TP TX) and a touch sensing signal (TP RX) for the touch sensing electrodes 104 within a first time interval. ; and the control unit 106 uses a plurality of scan driving signals of the display panel 102 as a voltage within a second time interval The force touch driving signal (FT TX) is used to drive the touch sensing electrodes 104 to perform pressure touch sensing, wherein the scan driving circuit 108 generates the scan driving signals and outputs them to the plurality of scans of the display panel 102 Wire. In this way, the touch display system 10 of the present invention can perform touch sensing and pressure touch sensing in a time-division manner without additional pressure touch elements.

請參考第2圖，第2圖為本發明實施例之觸控顯示系統10之一驅動時序之示意圖。在此示範實施例中該些觸控感測電極104於顯示面板102的水平與垂直方向皆橫跨了多個像素，其中掃描驅動電路108產生該些掃描驅動訊號Gate(n)~Gate(n+40)，並輸出至該些掃描線，而致動時間Gn為掃描驅動訊號Gate(n)致動的時間，致動時間Gn+1為掃描驅動訊號Gate(n+1)致動的時間，餘此類推。進一步而言，各該觸控感測電極104係對應於該些掃描線的其中數個，而壓力觸控感測訊號FT RX(1)與FT RX(2)係該些掃描線的該些掃描驅動訊號於該些觸控感測電極104上所耦合出之波形，其中壓力觸控感測訊號FT RX(1)的波形C1係由該觸控感測電極104所對應之該些掃描線受該些掃描驅動訊號Gate(n)~Gate(n+19)致動(Gn~Gn+19)所耦合出之波形，壓力觸控感測訊號FT RX(2)的波形C2係由該觸控感測電極104所對應之該些掃描線受該些掃描驅動訊號Gate(n+20)~Gate(n+39)致動(Gn+20~Gn+39)所耦合出之波形。 Please refer to FIG. 2 . FIG. 2 is a schematic diagram of a driving sequence of the touch display system 10 according to an embodiment of the present invention. In this exemplary embodiment, the touch sensing electrodes 104 span a plurality of pixels in the horizontal and vertical directions of the display panel 102 , wherein the scanning driving circuit 108 generates the scanning driving signals Gate(n)˜Gate(n +40), and output to these scan lines, and the actuation time Gn is the actuation time of the scan drive signal Gate(n), and the actuation time Gn+1 is the actuation time of the scan drive signal Gate(n+1) , and so on. Further, each of the touch sensing electrodes 104 is corresponding to several of the scanning lines, and the pressure touch sensing signals FT RX(1) and FT RX(2) are corresponding to the scanning lines of the scanning lines. The waveforms of the scan driving signal coupled to the touch sensing electrodes 104, wherein the waveform C1 of the pressure touch sensing signal FT RX(1) is the scan lines corresponding to the touch sensing electrodes 104 The waveforms coupled by the scanning drive signals Gate(n)~Gate(n+19) (Gn~Gn+19), the waveform C2 of the pressure touch sensing signal FT RX(2) is derived from the touch The scanning lines corresponding to the control sensing electrodes 104 are actuated (Gn+20~Gn+39) by the scanning driving signals Gate(n+20)~Gate(n+39) to couple out the waveforms.

復參第2圖，其中該第一時間區間T1係位於垂直空白區間(Vertical Blanking Interval)，該第二時間區間T2係位於有效顯示期間。第一時間區間T1內該些觸控感測電極104根據一觸控驅動訊號(TP TX)及一觸控感測訊號(TP RX)以執行觸控感測，其中該些觸控感測電極104包含複數觸控驅動電極及複數觸控接收電極，於該第一時間區間T1內，由該些觸控驅動電極接收該觸控驅動訊號(TP TX)，且由該些觸控接收電極接收該觸控感測訊號(TP RX)以執行 觸控感測。 Referring back to FIG. 2, the first time interval T1 is located in the vertical blanking interval (Vertical Blanking Interval), and the second time interval T2 is located in the effective display period. During the first time interval T1, the touch sensing electrodes 104 perform touch sensing according to a touch driving signal (TP TX) and a touch sensing signal (TP RX), wherein the touch sensing electrodes 104 includes a plurality of touch driving electrodes and a plurality of touch receiving electrodes. In the first time interval T1, the touch driving signal (TP TX) is received by the touch driving electrodes, and received by the touch receiving electrodes. The touch sensing signal (TP RX) to perform touch sensing.

第二時間區間T2內，以該顯示面板102之複數個掃描驅動訊號作為一壓力觸控驅動訊號，以驅動該些觸控感測電極104執行壓力觸控感測。在一示範實施例中，該第二時間區間T2係取樣該些掃描線的該些掃描驅動訊號Gate(n)~Gate(n+40)於該些觸控感測電極104上所耦合出之波形。在另一示範實施例中，該第二時間區T2間係以時間遮罩(Time Masking)進行取樣，以於該第二時間區間T2內執行壓力觸控感測，其中各該觸控感測電極104係對應於該些掃描線的其中數個，所述時間遮罩係包含各該觸控感測電極104所對應之該些掃描線受該些掃描驅動訊號Gate(n)~Gate(n+40)致動(Gn+20~Gn+39)的時間。在另一示範實施例中，於該第二時間區間T2內，由該些觸控驅動電極或觸控接收電極中的至少一者執行壓力觸控感測。如此一來，本發明觸控顯示系統10不需額外設置壓力觸控元件，即可透過驅動觸控感測電極104於不同的時間區間內，分別執行觸控感測及壓力觸控感測。 In the second time interval T2, the plurality of scan driving signals of the display panel 102 are used as a pressure touch driving signal to drive the touch sensing electrodes 104 to perform pressure touch sensing. In an exemplary embodiment, the second time interval T2 is sampling the scanning driving signals Gate(n)˜Gate(n+40) of the scanning lines coupled to the touch sensing electrodes 104 waveform. In another exemplary embodiment, the second time interval T2 is sampled by time masking (Time Masking), so as to perform pressure touch sensing in the second time interval T2, wherein each touch sensing The electrodes 104 correspond to several of the scanning lines, and the time mask includes that the scanning lines corresponding to the touch sensing electrodes 104 are subjected to the scanning driving signals Gate(n)˜Gate(n) +40) actuation (Gn+20~Gn+39) time. In another exemplary embodiment, during the second time interval T2, pressure touch sensing is performed by at least one of the touch driving electrodes or the touch receiving electrodes. In this way, the touch display system 10 of the present invention can perform touch sensing and pressure touch sensing respectively by driving the touch sensing electrodes 104 in different time intervals without additionally arranging pressure touch elements.

值得注意的是，該些掃描驅動訊號並不限於第2圖中的波形，根據不同顯示面板102將有不同掃描驅動訊號，並且，由於該些觸控感測電極104所橫跨的像素個數不同，致動所耦合的波形態樣、第一時間區間及第二時間區間的長度也會隨之不同。舉例來說，該些第二區間T2的長度可與致動所耦合的波形的區間完全相同、觸控感測不限於垂直空白區間進行，並且壓力觸控感測的取樣方式也不限於時間遮罩，本領域具通常知識者當可據以做適當之修飾，而不限於此。 It should be noted that these scan driving signals are not limited to the waveforms in FIG. 2 , and different display panels 102 will have different scan driving signals, and because the number of pixels spanned by these touch sensing electrodes 104 Depending on the difference, the shape of the waveform coupled to the actuation, the length of the first time interval and the length of the second time interval will also be different accordingly. For example, the lengths of the second intervals T2 can be exactly the same as the intervals of the waveforms coupled by the actuation, the touch sensing is not limited to the vertical blank interval, and the sampling method of the pressure touch sensing is not limited to the time interval. Those skilled in the art can make appropriate modifications accordingly, and are not limited thereto.

請參考第3圖，第3圖為本發明實施例之觸控顯示系統10之另一驅動 時序之示意圖。在第3圖，該些掃描線上的該些掃描驅動訊號Gate(n)~Gate(n+40)於有效顯示期間中的波形包含一不重疊區域NR，該第一時間區間T1係位於該不重疊區域NR，該第二時間區間T2係位於該不重疊區域NR以外的有效顯示期間。進一步而言，該不重疊區域NR可介於該些掃描線的該些掃描驅動訊號Gate(n)~Gate(n+40)於該些觸控感測電極104上所耦合出之波形C1與C2之間。如第3圖所示，該控制單元106於該第一時間區間T1內控制該些觸控感測電極104根據該觸控驅動訊號(TP TX)及該觸控感測訊號(TP RX)以執行觸控感測，並於該第二時間區間T2內，以該顯示面板102之該些掃描驅動訊號Gate(n)~Gate(n+40)作為一壓力觸控驅動訊號，以驅動該些觸控感測電極104執行壓力觸控感測。在另一示範實施例中，該第一時間區間T1可係位於垂直空白區間(Vertical Blanking Interval)，該第二時間區間T2係位於有效顯示期間。在另一示範實施例中，該第二時間區T2間係以時間遮罩(Time Masking)進行取樣，以於該第二時間區間T2內執行壓力觸控感測。如此一來，本發明觸控顯示系統10不需額外設置壓力觸控元件，即可透過驅動觸控感測電極104於不同的時間區間內，分別執行觸控感測及壓力觸控感測。 Please refer to Figure 3, Figure 3 is another drive of the touch display system 10 according to the embodiment of the present invention Schematic diagram of timing. In Fig. 3, the waveforms of the scanning driving signals Gate(n)~Gate(n+40) on the scanning lines in the effective display period include a non-overlapping region NR, and the first time interval T1 is located in the non-overlapping region NR. In the overlapping region NR, the second time interval T2 is an effective display period outside the non-overlapping region NR. Further, the non-overlapping region NR can be between the waveforms C1 and Between C2. As shown in FIG. 3 , the control unit 106 controls the touch sensing electrodes 104 according to the touch driving signal (TP TX) and the touch sensing signal (TP RX) in the first time interval T1 to Perform touch sensing, and use the scan driving signals Gate(n)˜Gate(n+40) of the display panel 102 as a pressure touch driving signal to drive the The touch sensing electrodes 104 perform pressure touch sensing. In another exemplary embodiment, the first time interval T1 may be located in a vertical blanking interval (Vertical Blanking Interval), and the second time interval T2 may be located in an active display period. In another exemplary embodiment, time masking is used for sampling during the second time interval T2, so as to perform pressure touch sensing during the second time interval T2. In this way, the touch display system 10 of the present invention can perform touch sensing and pressure touch sensing respectively by driving the touch sensing electrodes 104 in different time intervals without additionally arranging pressure touch elements.

請參考第4圖，第4圖為本發明實施例之觸控顯示系統10之另一驅動時序之示意圖。與第3圖不同的地方在於，不重疊區域NR可介於該些掃描驅動訊號群組之間，例如該些掃描驅動訊號群組Gate(n)~Gate(n+40)與該些掃描驅動訊號群組Gate(n+41)~Gate(n+42)之間。該第一時間區間T1係位於該不重疊區域NR，該第二時間區間T2係位於該不重疊區域NR以外的有效顯示期間。在另一示範實施例中，該第一時間區間T1可係位於垂直空白區間，該第二時間區間T2係位於有效顯示期間。在另一示範實施例中，該第二時間區T2間係以時間遮罩進行取樣，以於該第二時間區間T2內執行壓力觸控感測。如此一來，本發明觸控 顯示系統10不需額外設置壓力觸控元件，即可透過驅動觸控感測電極104於不同的時間區間內，分別執行觸控感測及壓力觸控感測。 Please refer to FIG. 4 , which is a schematic diagram of another driving sequence of the touch display system 10 according to an embodiment of the present invention. The difference from FIG. 3 is that the non-overlapping region NR can be between the scan drive signal groups, for example, the scan drive signal groups Gate(n)~Gate(n+40) and the scan drive signal groups Between the signal group Gate(n+41)~Gate(n+42). The first time interval T1 is located in the non-overlapping region NR, and the second time interval T2 is in an effective display period outside the non-overlapping region NR. In another exemplary embodiment, the first time interval T1 may be located in a vertical blank interval, and the second time interval T2 may be located in an effective display period. In another exemplary embodiment, a time mask is used for sampling during the second time interval T2, so as to perform pressure touch sensing during the second time interval T2. In this way, the touch control of the present invention The display system 10 can perform touch sensing and pressure touch sensing respectively by driving the touch sensing electrodes 104 in different time intervals without additional pressure touch elements.

需注意的是，前述實施例係用以說明本發明之精神，本領域具通常知識者當可據以做適當之修飾，而不限於此。具體而言，第一時間區間T1可位於每一壓力觸控感測訊號FT RX所對應的掃描驅動訊號群組之間的暫停區間，或觸控感測電極104上所耦合出之波形C1與C2之間的不重疊區域NR，此皆屬本發明之範疇。 It should be noted that the above-mentioned embodiments are used to illustrate the spirit of the present invention, and those skilled in the art can make appropriate modifications based on them, and are not limited thereto. Specifically, the first time interval T1 can be located in the pause interval between the scan driving signal groups corresponding to each force touch sensing signal FT RX, or the waveform C1 coupled to the touch sensing electrode 104 and The non-overlapping region NR between C2 belongs to the scope of the present invention.

上述觸控顯示系統10執行壓力觸控感測及觸控感測的流程可被歸納為一驅動方法50，如第5圖所示，驅動方法50可用於一顯示面板(如智慧型手機、平板電腦、筆記型電腦等具有顯示面板的電子產品)且包含有以下步驟： The process of the touch display system 10 performing pressure touch sensing and touch sensing can be summarized as a driving method 50. As shown in FIG. 5, the driving method 50 can be used for a display panel (such as a smart phone, a tablet Computers, notebook computers and other electronic products with display panels) and include the following steps:

步驟502：開始。 Step 502: start.

步驟504：於一第一時間區間內，該些觸控感測電極根據一觸控驅動訊號及一觸控感測訊號以執行觸控感測。 Step 504: During a first time interval, the touch sensing electrodes perform touch sensing according to a touch driving signal and a touch sensing signal.

步驟506：於一第二時間區間內，以該顯示面板之複數個掃描驅動訊號作為一壓力觸控驅動訊號，以驅動該些觸控感測電極執行壓力觸控感測。 Step 506 : In a second time interval, use the plurality of scan driving signals of the display panel as a pressure touch driving signal to drive the touch sensing electrodes to perform pressure touch sensing.

步驟508：結束。 Step 508: end.

除此之外，根據不同的需求，本發明之觸控顯示系統10可以不同的實施態樣實現。請參考第6圖，第6圖為本發明實施例之一觸控顯示系統60之示意圖。如第6圖所示，當觸控顯示系統60為一外嵌式觸控面板時，觸控顯示系統60具有一顯示器薄膜電晶體(Thin-Film Transistor，TFT)基底602、一介質604及一彩色濾光片基底(Color Filter Substrate，CF Substrate)606。其中，顯示器 薄膜電晶體基底602可用來作為一壓力觸控感測TX端；彩色濾光片基底606可用來作為一觸控感測RX端及一壓力觸控感測RX端。如此一來，透過介質604的形變量，觸控感測系統60可據以透過上述壓力觸控的驅動方法50，在觸控感測的架構下，於不同的時間區間內，分別執行觸控感測及壓力觸控感測。 In addition, according to different requirements, the touch display system 10 of the present invention can be realized in different implementation forms. Please refer to FIG. 6, which is a schematic diagram of a touch display system 60 according to an embodiment of the present invention. As shown in FIG. 6, when the touch display system 60 is an embedded touch panel, the touch display system 60 has a display thin film transistor (Thin-Film Transistor, TFT) substrate 602, a medium 604 and a Color Filter Substrate (Color Filter Substrate, CF Substrate) 606 . Among them, the display The thin film transistor substrate 602 can be used as a pressure touch sensing TX terminal; the color filter substrate 606 can be used as a touch sensing RX terminal and a pressure touch sensing RX terminal. In this way, through the deformation of the medium 604, the touch sensing system 60 can use the above-mentioned pressure touch driving method 50 to perform touch control in different time intervals under the touch sensing framework. sensing and pressure touch sensing.

在另一實施例中，請參考第7圖，第7圖為本發明實施例之一觸控顯示系統70之示意圖。如第7圖所示，當觸控顯示系統70為一外掛式觸控面板時，觸控顯示系統70具有一顯示器薄膜電晶體基底702、一介質704、一彩色濾光片基底706及一觸控面板基底(TP Substrate)708。其中，顯示器薄膜電晶體基底702可用來作為一壓力觸控感測TX端；觸控面板基底708可用來作為一觸控感測RX端及一壓力觸控感測RX端。如此一來，透過介質704的形變量，觸控感測系統70可據以透過上述壓力觸控的驅動方法50，在觸控感測的架構下，於不同的時間區間內，分別執行觸控感測及壓力觸控感測。 In another embodiment, please refer to FIG. 7 , which is a schematic diagram of a touch display system 70 according to an embodiment of the present invention. As shown in FIG. 7, when the touch display system 70 is an external touch panel, the touch display system 70 has a display thin film transistor substrate 702, a medium 704, a color filter substrate 706 and a touch panel. Control Panel Substrate (TP Substrate) 708. Wherein, the display thin film transistor substrate 702 can be used as a pressure touch sensing TX terminal; the touch panel substrate 708 can be used as a touch sensing RX terminal and a pressure touch sensing RX terminal. In this way, through the deformation of the medium 704, the touch sensing system 70 can use the above-mentioned pressure touch driving method 50 to perform touch control in different time intervals under the touch sensing framework. sensing and pressure touch sensing.

值得注意的是，本發明之觸控顯示系統並不限應用於外嵌式觸控面板，上述實施例也可採用外掛式觸控面板以執行本發明之驅動方法，進而利用分時感測的驅動方法達到觸控與壓力觸控整合的目標。 It should be noted that the touch display system of the present invention is not limited to be applied to an external embedded touch panel. The driving method achieves the goal of integrating touch and pressure touch.

綜上所述，本發明各實施例不需額外設置壓力觸控元件，以分時感測或分時調變的方式，於不同的時間區間內，分別執行觸控感測及壓力觸控感測，進而降低製程成本及整體觸控顯示器的厚度。 To sum up, each embodiment of the present invention does not need additional pressure touch elements, and performs touch sensing and pressure touch sensing in different time intervals by means of time-division sensing or time-division modulation. measurement, thereby reducing the manufacturing process cost and the thickness of the overall touch display.

以上所述僅為本發明之較佳實施例，凡依本發明申請專利範圍所做之均等變化與修飾，皆應屬本發明之涵蓋範圍。 The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

102:顯示面板 102: Display panel

104:觸控感測電極 104: Touch sensing electrodes

106:控制單元 106: Control unit

108:掃描驅動電路 108: Scan driving circuit

Claims (13)

一種壓力觸控的驅動方法，用於一觸控顯示系統，其中該觸控顯示系統包含一顯示面板及複數觸控感測電極，該驅動方法包含有：由一掃描驅動電路產生該些掃描驅動訊號，並輸出至該顯示面板的複數個掃描線；於一第一時間區間內，該些觸控感測電極根據一觸控驅動訊號及一觸控感測訊號以執行觸控感測；以及於一第二時間區間內，以該顯示面板之複數個掃描驅動訊號作為一壓力觸控驅動訊號，以驅動該些觸控感測電極執行壓力觸控感測。 A driving method of pressure touch, used in a touch display system, wherein the touch display system includes a display panel and a plurality of touch sensing electrodes, the driving method includes: generating the scanning drives by a scanning driving circuit signal, and output to a plurality of scan lines of the display panel; within a first time interval, the touch sensing electrodes perform touch sensing according to a touch driving signal and a touch sensing signal; and In a second time interval, the plurality of scan driving signals of the display panel are used as a pressure touch driving signal to drive the touch sensing electrodes to perform pressure touch sensing. 如請求項1所述之驅動方法，其中該第二時間區間係取樣該些掃描線的該些掃描驅動訊號於該些觸控感測電極上所耦合出之波形。 The driving method as described in Claim 1, wherein the second time interval is for sampling the waveforms coupled from the scanning driving signals of the scanning lines on the touch sensing electrodes. 如請求項1所述之驅動方法，其中該第一時間區間係位於垂直空白區間，該第二時間區間係位於有效顯示期間。 The driving method according to claim 1, wherein the first time interval is located in a vertical blank interval, and the second time interval is located in an effective display period. 如請求項1所述之驅動方法，其中該第二時間區間係以時間遮罩進行取樣，以於該第二時間區間內執行壓力觸控感測。 The driving method according to claim 1, wherein the second time interval is sampled by a time mask, so as to perform pressure touch sensing in the second time interval. 如請求項4所述之驅動方法，其中各該觸控感測電極係對應於該些掃描線的其中數個，所述時間遮罩係包含各該觸控感測電極所對應之該些掃描線受該些掃描驅動訊號致動的時間。 The driving method as described in claim 4, wherein each of the touch sensing electrodes corresponds to several of the scan lines, and the time mask includes the scans corresponding to each of the touch sensing electrodes The time when the lines are actuated by these scan driving signals. 如請求項1所述之驅動方法，其中該些觸控感測電極包含複數觸 控驅動電極及複數觸控接收電極，於該第一時間區間內，由該些觸控驅動電極接收該觸控驅動訊號，且由該些觸控接收電極接收該觸控感測訊號以執行觸控感測。 The driving method as described in claim 1, wherein the touch sensing electrodes include a plurality of touch control driving electrodes and a plurality of touch receiving electrodes, within the first time interval, the touch driving signals are received by the touch driving electrodes, and the touch sensing signals are received by the touch receiving electrodes to perform touch control. control sensing. 如請求項6所述之驅動方法，其中，於該第二時間區間內，由該些觸控驅動電極或觸控接收電極中的至少一者執行壓力觸控感測。 The driving method according to claim 6, wherein, in the second time interval, at least one of the touch driving electrodes or the touch receiving electrodes performs pressure touch sensing. 如請求項1所述之驅動方法，其中該些掃描線上的該些掃描驅動訊號於有效顯示期間中的波形包含一不重疊區域，該第一時間區間係位於該不重疊區域，該第二時間區間係位於該不重疊區域以外的有效顯示期間。 The driving method as described in claim 1, wherein the waveforms of the scanning driving signals on the scanning lines in the effective display period include a non-overlapping area, the first time interval is located in the non-overlapping area, and the second time The interval system is a valid display period outside the non-overlapping area. 一種觸控顯示系統，包含有：一顯示面板，該顯示面板包含複數個掃描線，該些掃描線接收複數個掃描驅動訊號；複數觸控感測電極，耦接於該顯示面板；以及一控制單元，耦接於該些觸控感測電極，該控制單元於一第一時間區間內控制該些觸控感測電極根據一觸控驅動訊號及一觸控感測訊號以執行觸控感測；以及該控制單元於一第二時間區間內，以該顯示面板之複數個掃描驅動訊號作為一壓力觸控驅動訊號，以驅動該些觸控感測電極執行壓力觸控感測。 A touch display system includes: a display panel, the display panel includes a plurality of scan lines, and the scan lines receive a plurality of scan driving signals; a plurality of touch sensing electrodes are coupled to the display panel; and a control A unit, coupled to the touch sensing electrodes, the control unit controls the touch sensing electrodes to perform touch sensing according to a touch driving signal and a touch sensing signal within a first time interval ; and the control unit uses the plurality of scan driving signals of the display panel as a pressure touch driving signal in a second time interval to drive the touch sensing electrodes to perform pressure touch sensing. 如請求項9所述之觸控顯示系統，其中該第二時間區間係取樣該些掃描線的該些掃描驅動訊號於該些觸控感測電極上所耦合出之波形。 The touch display system as described in Claim 9, wherein the second time interval is for sampling the waveforms of the scan driving signals of the scan lines coupled to the touch sensing electrodes. 如請求項9所述之觸控顯示系統，其中該第一時間區間係位於垂直空白區間，該第二時間區間係位於有效顯示期間。 The touch display system according to Claim 9, wherein the first time interval is located in a vertical blank interval, and the second time interval is located in an effective display period. 如請求項9所述之觸控顯示系統，其中該第二時間區間係以時間遮罩進行取樣，以於該第二時間區間內執行壓力觸控感測。 The touch display system according to claim 9, wherein the second time interval is sampled by a time mask, so as to perform pressure touch sensing in the second time interval. 如請求項9所述之觸控顯示系統，其中該些掃描線上的該些掃描驅動訊號於有效顯示期間中的波形包含一不重疊區域，該第一時間區間係位於該不重疊區域，該第二時間區間係位於該不重疊區域以外的有效顯示期間。 The touch display system as described in claim 9, wherein the waveforms of the scanning driving signals on the scanning lines in the effective display period include a non-overlapping area, the first time interval is located in the non-overlapping area, and the second time interval is located in the non-overlapping area. The two time intervals are valid display periods outside the non-overlapping area.
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