本發明系關於一種觸控螢幕的觸控方法，特別系關於在觸控螢幕進行像素更新之間的空白時期進行觸控的方法。The present invention relates to a touch screen touch method, and more particularly to a method for performing touch during a blank period between pixel update of a touch screen.
在點陣式的顯示系統中，諸如現行的液晶顯示螢幕，通常是以視訊框(frame)作為一個顯示單位。每個視訊框包含N條顯示線(line)，每條顯示線包含M個點或像素(pixel)。顯示系統的控制器在更新視訊框的時候，通常會從上到下依序更新每一條顯示線。在更新每一條顯示線的時候，通常會從左至右依序更新每一個像素。In a dot matrix display system, such as the current liquid crystal display screen, a frame is usually used as a display unit. Each video frame contains N display lines, each of which contains M dots or pixels. When the controller of the display system updates the video frame, it usually updates each display line from top to bottom. When updating each display line, each pixel is usually updated sequentially from left to right.
在更新完前一條顯示線到開始更新後一條顯示線之間的時間間隔，稱之為水平空白間隔(HBI,horizontal blanking interval)。因此，當視訊框擁有N條顯示線時，更新一個視訊框就會有N-1個HBI。而在更新前一個視訊框最後一個像素到開始更新下一個視訊框之間的時間間隔，稱之為垂直空白間隔(HBI,vertical blanking interval)。在本申請中，無論是HBI或VBI，都統稱為空白間隔(BI,blanking interval)。The time interval between the display line and the display line after the update is updated, called the horizontal blanking interval (HBI). Therefore, when the video frame has N display lines, updating one video frame will have N-1 HBIs. The time interval between updating the last pixel of the previous video frame and starting to update the next video frame is called vertical blanking interval (HBI). In this application, either HBI or VBI are collectively referred to as blank interval (BI).
一般來說，液晶顯示器在更新某一條顯示線的時候，會對該顯示線上的所有像素電極施加程度不等的電壓，以便令各像素的液晶呈現不同的透光程度。假設在液晶顯示器的上方外側設有觸控驅動電極與感測電極，使用互電容的方式來感測外部導電物件。在更新顯示線的時候，上述的電壓會對觸控感測電極造成電容感應效應，使得觸控感測電極所收到的信號當中，不只包含觸控驅動電極所發出的驅動信號，還包含了顯示線更新時的雜訊。此種情況在觸控驅動電極與顯示線平行時，亦即各條觸控感測電極與顯示線垂直時最為嚴重。Generally, when a liquid crystal display updates a certain display line, a voltage of a different degree is applied to all the pixel electrodes on the display line, so that the liquid crystal of each pixel is presented.Different degrees of light transmission. It is assumed that a touch driving electrode and a sensing electrode are disposed on the outer side of the liquid crystal display, and the external conductive object is sensed by using mutual capacitance. When the display line is updated, the above voltage causes a capacitive sensing effect on the touch sensing electrode, so that the signal received by the touch sensing electrode includes not only the driving signal emitted by the touch driving electrode but also the driving signal. Shows the noise when the line is updated. In this case, when the touch driving electrodes are parallel to the display lines, that is, the respective touch sensing electrodes are perpendicular to the display lines, the most serious.
本申請要解決的問題之一，是盡量避免或減緩觸控螢幕的顯示線更新造成對觸控感測電極的電磁干擾。本申請要解決的問題之一，是如何讓觸控處理裝置得知空白間隔(BI)的時間資訊。One of the problems to be solved by the present application is to avoid or slow down the electromagnetic interference of the touch sensing electrodes caused by the display line update of the touch screen. One of the problems to be solved by the present application is how to let the touch processing device know the time information of the blank interval (BI).
根據一實施例，為了避免觸控螢幕的像素更新時的干擾，本發明提供一種觸控方法，包含：在一第一空白期間，透過一觸控螢幕的一第一驅動電極發出驅動信號；以及在該第一空白期間，透過該觸控螢幕的多條感測電極量測該驅動信號的感應信號，用於偵測在該第一驅動電極附近的一近接物件。According to an embodiment, in order to avoid interference when the pixels of the touch screen are updated, the present invention provides a touch method, including: driving a driving signal through a first driving electrode of a touch screen during a first blank period; During the first blank period, the sensing signals of the driving signal are measured through the plurality of sensing electrodes of the touch screen for detecting a proximity object in the vicinity of the first driving electrode.
在一實施例中，為了增加偵測到該近接物件的機會，該觸控方法更包含：在包含該第一空白期間的多個空白期間，透過該第一驅動電極發出該驅動信號；在該多個空白期間，透過該觸控螢幕的該多條感測電極量測並加總該驅動信號的感應信號，用於偵測在該第一驅動電極附近的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該多個空白期間是多個非連續的水平空白期間。In an embodiment, in order to increase the chance of detecting the proximity object, the touch method further includes: transmitting the driving signal through the first driving electrode during a plurality of blanks during the first blank period; During the plurality of blanking periods, the sensing signals of the driving signal are measured and summed by the plurality of sensing electrodes of the touch screen for detecting the proximity object near the first driving electrode. In one variation, to increase the chances of detecting the proximity object, the plurality of blank periods are a plurality of non-contiguous horizontal blank periods.
在一實施例中，為了減少偵測全螢幕的時間，該觸控方法更包含：在該第一空白期間，透過一第二驅動電極發出包含一第二虛擬亂數碼的該驅動信號，其中該第一驅動電極發出的該驅動信號包含一第一虛擬亂數碼驅動信號；以及在該第一空白期間，透過該多條感測電極量測該驅動信號的感應信號，用於偵測在該第一驅動電極與該第二驅動電極附近的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該觸控感測方法更包含：在包含該第一空白期間的多個空白期間，透過該第一驅動電極與該第二驅動電極發出該驅動信號；以及在該多個空白期間，透過該多條感測電極量測並加總該驅動信號的感應信號，用於偵測在該第一驅動電極與該第二驅動電極附近的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該多個空白期間是多個非連續的水平空白期間。In an embodiment, in order to reduce the time for detecting the full screen, the touch method is moreThe driving signal including a second virtual random number is sent through a second driving electrode, wherein the driving signal sent by the first driving electrode includes a first virtual random digital driving signal; During the first blank period, the sensing signal of the driving signal is measured through the plurality of sensing electrodes for detecting the proximity object in the vicinity of the first driving electrode and the second driving electrode. In a variation, in order to increase the chance of detecting the proximity object, the touch sensing method further includes: transmitting the first driving electrode and the second driving electrode during a plurality of blanks including the first blank period Transmitting the driving signal; and measuring and summing the sensing signals of the driving signals through the plurality of sensing electrodes for detecting the vicinity of the first driving electrode and the second driving electrode during the plurality of blanking periods The proximity object. In one variation, to increase the chances of detecting the proximity object, the plurality of blank periods are a plurality of non-contiguous horizontal blank periods.
在一實施例中，為了判斷觸控螢幕上是否有近接物件，該觸控方法更包含：在該第一空白期間，透過該觸控螢幕的全部驅動電極發出該驅動信號；以及在該第一空白期間，透過該多條感測電極量測該驅動信號的感應信號，用於偵測在該觸控螢幕上的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該觸控方法更包含：在包含該第一空白期間的多個空白期間，透過該全部驅動電極發出該驅動信號；以及在該多個空白期間，透過該多條感測電極量測並加總該驅動信號的感應信號，用於偵測在該觸控螢幕上的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該多個空白期間是多個非連續的水平空白期間。In an embodiment, in order to determine whether there is a proximity object on the touch screen, the touch method further includes: transmitting the driving signal through all the driving electrodes of the touch screen during the first blank; and at the first During the blanking period, the sensing signal of the driving signal is measured through the plurality of sensing electrodes for detecting the proximity object on the touch screen. In a variation, in order to increase the chance of detecting the proximity object, the touch method further includes: transmitting the driving signal through the all driving electrodes during a plurality of blanks during the first blank period; and During the blank period, the sensing signals of the driving signals are measured and summed through the plurality of sensing electrodes for detecting the proximity object on the touch screen. In one variation, to increase the chances of detecting the proximity object, the plurality of blank periods are a plurality of non-contiguous horizontal blank periods.
在一實施例中，為了讓接收到的驅動信號具有一致性，該觸控方法更包含：根據該第一驅動電極距離該多條感測電極所連接感測器的遠近，進行下列調整或其任意組合：調整驅動信號的電壓大小、驅動時間長短、調整該多條感測電極所連接感測器的增益、感測時間長短、感測時間點的延後時間。In an embodiment, in order to make the received driving signal have consistency, the touch method further includes: performing the following adjustment according to the distance of the first driving electrode from the sensor connected to the plurality of sensing electrodes or Any combination: adjust the voltage of the drive signal, drive timeThe length of the sensor is adjusted, the gain of the sensor connected to the plurality of sensing electrodes, the length of the sensing time, and the delay time of the sensing time point.
根據一實施例，為了避免觸控螢幕的像素更新時的干擾，本發明提供一種觸控處理裝置，包含：一驅動電路，用於連接一觸控螢幕的多條驅動電極；一感測電路，用於連接該觸控螢幕的多條感測電極；以及連接該驅動電路與該感測電路的一處理器，用於：在一第一空白期間，令該驅動電路透過一第一驅動電極發出驅動信號；以及在該第一空白期間，令該感測電路透過該多條感測電極量測該驅動信號的感應信號，用於偵測在該第一驅動電極附近的一近接物件。According to an embodiment, in order to avoid interference when the pixel of the touch screen is updated, the present invention provides a touch processing device, including: a driving circuit for connecting a plurality of driving electrodes of a touch screen; and a sensing circuit, a plurality of sensing electrodes for connecting to the touch screen; and a processor connecting the driving circuit and the sensing circuit, configured to: send the driving circuit through a first driving electrode during a first blank period And driving the sensing signal through the plurality of sensing electrodes to detect a proximity object in the vicinity of the first driving electrode.
在一實施例中，為了增加偵測到該近接物件的機會，該處理器更用於：在包含該第一空白期間的多個空白期間，令該驅動電路透過該第一驅動電極發出該驅動信號；在該多個空白期間，令該感測電路透過該觸控螢幕的該多條感測電極量測並加總該驅動信號的感應信號，用於偵測在該第一驅動電極附近的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該多個空白期間是多個非連續的水平空白期間。In an embodiment, in order to increase the chance of detecting the proximity object, the processor is further configured to: when the plurality of blanks during the first blank period are included, causing the driving circuit to send the driving through the first driving electrode a signal that is sensed by the sensing circuit through the plurality of sensing electrodes of the touch screen and summed up the sensing signal of the driving signal for detecting near the first driving electrode The proximity object. In one variation, to increase the chances of detecting the proximity object, the plurality of blank periods are a plurality of non-contiguous horizontal blank periods.
在一實施例中，為了減少偵測全螢幕的時間，該處理器更用於：在該第一空白期間，令該驅動電路透過一第二驅動電極發出包含一第二虛擬亂數碼的該驅動信號，其中該第一驅動電極發出的該驅動信號包含一第一虛擬亂數碼驅動信號；以及在該第一空白期間，令該感測電路透過該多條感測電極量測該驅動信號的感應信號，用於偵測在該第一驅動電極與該第二驅動電極附近的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該處理器更用於：在包含該第一空白期間的多個空白期間，令該驅動電路透過該第一驅動電極與該第二驅動電極發出該驅動信號；以及在該多個空白期間，令該感測電路透過該多條感測電極量測並加總該驅動信號的感應信號，用於偵測在該第一驅動電極與該第二驅動電極附近的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該多個空白期間是多個非連續的水平空白期間。In an embodiment, in order to reduce the time for detecting the full screen, the processor is further configured to: during the first blank period, causing the driving circuit to send the driving including a second virtual chaotic digital signal through a second driving electrode a signal, wherein the driving signal sent by the first driving electrode comprises a first virtual random digital driving signal; and during the first blanking, the sensing circuit is configured to measure the driving signal through the plurality of sensing electrodes And a signal for detecting the proximity object in the vicinity of the first driving electrode and the second driving electrode. In a variation, in order to increase the chance of detecting the proximity object, the processor is further configured to: during a plurality of blanks during the first blank period,And causing the driving circuit to send the driving signal through the first driving electrode and the second driving electrode; and during the plurality of blanks, causing the sensing circuit to measure and sum up the driving signal through the plurality of sensing electrodes And an inductive signal for detecting the proximity object in the vicinity of the first driving electrode and the second driving electrode. In one variation, to increase the chances of detecting the proximity object, the plurality of blank periods are a plurality of non-contiguous horizontal blank periods.
在一實施例中，為了判斷觸控螢幕上是否有近接物件，該處理器更用於：在該第一空白期間，令該驅動電路透過該觸控螢幕的全部驅動電極發出該驅動信號；以及在該第一空白期間，令該感測電路透過該多條感測電極量測該驅動信號的感應信號，用於偵測在該觸控螢幕上的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該處理器更用於：在包含該第一空白期間的多個空白期間，令該驅動電路透過該全部驅動電極發出該驅動信號；以及在該多個空白期間，令該感測電路透過該多條感測電極量測並加總該驅動信號的感應信號，用於偵測在該觸控螢幕上的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該多個空白期間是多個非連續的水平空白期間。In an embodiment, in order to determine whether there is a proximity object on the touch screen, the processor is further configured to: when the first blank period, cause the driving circuit to send the driving signal through all driving electrodes of the touch screen; During the first blanking period, the sensing circuit measures the sensing signal of the driving signal through the plurality of sensing electrodes for detecting the proximity object on the touch screen. In a variation, in order to increase the chance of detecting the proximity object, the processor is further configured to: when the plurality of blanks during the first blank period are included, cause the driving circuit to send the driving signal through the all driving electrodes; And sensing, by the sensing circuit, the sensing signals of the driving signal through the plurality of sensing electrodes for detecting the proximity object on the touch screen. In one variation, to increase the chances of detecting the proximity object, the plurality of blank periods are a plurality of non-contiguous horizontal blank periods.
在一實施例中，為了讓接收到的驅動信號具有一致性，該處理器更用於：根據該第一驅動電極距離該多條感測電極所連接感測器的遠近，進行下列調整或其任意組合：令該驅動電路調整驅動信號的電壓大小、驅動時間長短、以及令該感測電路調整該多條感測電極所連接感測器的增益、感測時間長短、感測時間點的延後時間。In an embodiment, in order to make the received driving signal have consistency, the processor is further configured to: perform the following adjustment according to the distance of the first driving electrode from the sensor connected to the plurality of sensing electrodes or Any combination: the driving circuit adjusts the voltage of the driving signal, the driving time, and the sensing circuit adjusts the gain of the sensor connected to the plurality of sensing electrodes, the length of the sensing time, and the delay of the sensing time point After time.
根據一實施例，為了避免觸控螢幕的像素更新時的干擾，本發明提供一種電子系統，包含：一觸控螢幕；以及連接該觸控螢幕的一觸控處理裝置。該觸控處理裝置，包含：一驅動電路，用於連接該觸控螢幕的多條驅動電極；一感測電路，用於連接該觸控螢幕的多條感測電極；以及連接該驅動電路與該感測電路的一處理器，用於：在一第一空白期間，令該驅動電路透過一第一驅動電極發出驅動信號；以及在該第一空白期間，令該感測電路透過該多條感測電極量測該驅動信號的感應信號，用於偵測在該第一驅動電極附近的一近接物件。According to an embodiment, in order to avoid interference when the pixels of the touch screen are updated, the present invention provides an electronic system including: a touch screen; and a touch connecting the touch screenControl processing device. The touch processing device includes: a driving circuit for connecting a plurality of driving electrodes of the touch screen; a sensing circuit for connecting the plurality of sensing electrodes of the touch screen; and connecting the driving circuit with a processor of the sensing circuit, configured to: when a first blank period, cause the driving circuit to send a driving signal through a first driving electrode; and during the first blanking, let the sensing circuit pass the plurality of strips The sensing electrode measures the sensing signal of the driving signal for detecting a proximity object in the vicinity of the first driving electrode.
總上所述，本發明所提供的觸控方法、觸控處理裝置與電子系統，可以在盡量避免在觸控螢幕的顯示線更新時進行感測，以減少對觸控感測電極的電磁干擾。In summary, the touch control method, the touch processing device, and the electronic system provided by the present invention can avoid sensing when the display line of the touch screen is updated to reduce electromagnetic interference to the touch sensing electrode. .
110‧‧‧觸控螢幕110‧‧‧ touch screen
121‧‧‧第一電極121‧‧‧First electrode
122‧‧‧第二電極122‧‧‧second electrode
130‧‧‧觸控處理裝置130‧‧‧Touch processing device
140‧‧‧顯示驅動140‧‧‧Display driver
141‧‧‧顯示控制線141‧‧‧Display control line
150‧‧‧圖形處理器150‧‧‧graphic processor
151‧‧‧視訊輸出線151‧‧‧Video output line
152‧‧‧圖形資訊線152‧‧‧Graphic information line
510~530‧‧‧步驟510~530‧‧‧Steps
610‧‧‧驅動電路610‧‧‧ drive circuit
620‧‧‧感測電路620‧‧‧Sensor circuit
630‧‧‧處理器630‧‧‧ processor
圖1為根據本發明一實施例的電子系統之一示意圖。1 is a schematic diagram of an electronic system in accordance with an embodiment of the present invention.
圖2為根據本發明一實施例的一觸控方法之一示意圖。FIG. 2 is a schematic diagram of a touch method according to an embodiment of the invention.
圖3為根據本發明一實施例的一觸控方法之一示意圖。FIG. 3 is a schematic diagram of a touch method according to an embodiment of the invention.
圖4為根據本發明一實施例的一觸控方法之一示意圖。FIG. 4 is a schematic diagram of a touch method according to an embodiment of the invention.
圖5為根據本發明一實施例的一種觸控方法的一流程示意圖。FIG. 5 is a schematic flow chart of a touch method according to an embodiment of the invention.
圖6為根據本發明一實施例的一種觸控處理裝置之一方塊示意圖。FIG. 6 is a block diagram of a touch processing device according to an embodiment of the invention.
本發明將詳細描述一些實施例如下。然而，除了所揭露的實施例外，本發明亦可以廣泛地運用在其他的實施例施行。本發明的範圍並不受該些實施例的限定，乃以其後的申請專利範圍為準。而為提供更清楚的描述及使熟悉該項技藝者能理解本發明的發明內容，圖示內各部分並沒有依照其相對的尺寸而繪圖，某些尺寸與其他相關尺度的比例會被突顯而顯得誇張，且不相關的細節部分亦未完全繪出，以求圖示的簡潔。The invention will be described in detail below with some embodiments. However, the invention may be applied to other embodiments in addition to the disclosed embodiments. The scope of the present invention is not limited by the embodiments, which are subject to the scope of the claims. In order to provide a clearer description and to enable those skilled in the art to understand the inventive content of the present invention, the various parts of the illustration are notDrawing according to their relative dimensions, the ratio of certain dimensions to other related scales will be highlighted and exaggerated, and the irrelevant details are not fully drawn for the sake of simplicity.
請參考圖1所示，其為根據本發明一實施例的電子系統之一示意圖。該電子系統包含一觸控螢幕110、位在該觸控螢幕110之上或之內的多條第一電極121與多條第二電極122、以及連接到該多條第一電極121與該多條第二電極122的觸控處理裝置130。該電子系統還包含一顯示驅動器140，利用至少一條顯示控制線141連接該觸控螢幕110，控制上述的點陣式顯示，亦即視訊框更新作業。Please refer to FIG. 1, which is a schematic diagram of an electronic system in accordance with an embodiment of the present invention. The electronic system includes a touch screen 110, a plurality of first electrodes 121 and a plurality of second electrodes 122 located on or in the touch screen 110, and a plurality of first electrodes 121 connected to the plurality The touch processing device 130 of the second electrode 122. The electronic system further includes a display driver 140 that is connected to the touch screen 110 by using at least one display control line 141 to control the dot matrix display, that is, the video frame update operation.
在某一範例中，該電子裝置還可以包含一圖形處理器150，利用至少一條視訊輸出線151連接到該顯示驅動器140，用於將處理過後的圖形資訊傳輸到該顯示驅動器140。視訊輸出線151可以是符合最小化傳輸差分訊號(TMDS,transition minimized differential signaling)標準或低壓差分訊號(LVDS,low-voltage differential signaling)標準之類的傳輸線路與協定。視訊輸出線151也可以是數位視訊介面(DVI,digital video interface)、高畫質多媒體介面(HDMI,high-definition multimedia interface)、VGA、BNC、S端子、RCA端子、DisplayPort、Thunderbolt、MHL之類的介面。In an example, the electronic device can further include a graphics processor 150 coupled to the display driver 140 by using at least one video output line 151 for transmitting the processed graphics information to the display driver 140. The video output line 151 may be a transmission line and protocol that conforms to the minimum minimized differential signaling (TMDS) standard or the low-voltage differential signaling (LVDS) standard. The video output line 151 can also be a digital video interface (DVI), a high-definition multimedia interface (HDMI), a VGA, a BNC, an S terminal, an RCA terminal, a DisplayPort, a Thunderbolt, an MHL, or the like. Interface.
觸控處理裝置130可以使用多種方式來取得顯示驅動器140更新視訊框的資訊，也就是取得何時開始空白間隔(BI)的時間資訊。第一種方式，該觸控處理裝置130可以連接到該顯示控制線141，並且解析該顯示控制線141上的顯示控制信號，藉以得知何時開始空白間隔(BI)的時間資訊。第二種方式，該顯示驅動器140可以將顯示控制資訊透過至少一條顯示資訊線路142傳送給該觸控處理裝置130，該顯示控制資訊可以包含空白間隔(BI)的時間資訊。第三種方式，該觸控處理裝置130可以連接到該視訊輸出線151，並且解析該視訊輸出線151上的視訊輸出信號，藉以得知何時開始水平空白間隔(HBI)與垂直空白間隔(VBI)的時間資訊。第四種方式，該圖形處理器150可以將視訊輸出信號透過至少一圖形資訊線152傳送給該觸控處理裝置1300，該視訊輸出信號可以包含BI的時間資訊。The touch processing device 130 can use various methods to obtain the information that the display driver 140 updates the video frame, that is, the time information when the blanking interval (BI) is started. In the first manner, the touch processing device 130 can be connected to the display control line 141 and parse the display control signal on the display control line 141 to know when to start the blank interval (BI) time information. In a second manner, the display driver 140 can transmit display control information to the touch processing device 130 through the at least one display information line 142, and the display control information can include a blank interval (BI).Time information. In a third manner, the touch processing device 130 can be connected to the video output line 151 and parse the video output signal on the video output line 151 to know when to start the horizontal blank interval (HBI) and the vertical blank interval (VBI). ) time information. In a fourth manner, the graphics processor 150 can transmit the video output signal to the touch processing device 1300 through the at least one graphics information line 152, where the video output signal can include time information of the BI.
第五種方式，該觸控處理裝置130可以在某一段時間內，如當該電子系統開機之後，或是確認在觸控螢幕上沒有近接物件時，透過至少一條第一電極121與/或第二電極122量測信號值。若信號值呈現常見的規律變化，則可以根據這些規律變化推測出空白間隔(BI)的時間資訊。In a fifth mode, the touch processing device 130 can transmit the at least one first electrode 121 and/or the first time after the electronic system is turned on, or when there is no close object on the touch screen. The two electrodes 122 measure the signal value. If the signal values exhibit a common regular change, the time information of the blank interval (BI) can be inferred based on these regular changes.
第六種方式，該觸控處理裝置130或其驅動程式，可以定期或不定期向該電子系統取得該顯示驅動器140所被設定的參數，如更新率與解析度。比方說，當該顯示驅動器140的輸出格式被設定為1080P與60Hz的時候，就可以知道有1024條顯示線，每隔1/60秒會出現一次垂直空白間隔(VBI)，每隔1/(60*1024)秒會出現一次水平空白間隔(HBI)。再利用第五種方式來測量信號值，就可以根據干擾信號出現的頻率，得知何時開始空白間隔(BI)的時間資訊。In a sixth aspect, the touch processing device 130 or the driver thereof can obtain parameters, such as an update rate and a resolution, set by the display driver 140 to the electronic system periodically or irregularly. For example, when the output format of the display driver 140 is set to 1080P and 60 Hz, it can be known that there are 1024 display lines, and a vertical blank interval (VBI) occurs every 1/60 second, every 1/( A horizontal blank interval (HBI) occurs once every 60*1024) seconds. Using the fifth method to measure the signal value, it is possible to know when to start the blank interval (BI) time information based on the frequency of the interference signal.
本發明並不限定觸控處理裝置130如何得知何時開始空白間隔(BI)的時間資訊，也不限定其使用上述六種方式當中的一種或多種方式。據此，本發明提供了如何讓觸控處理裝置得知空白間隔(BI)的時間資訊的方法與裝置。在取得水平空白間隔(HBI)與垂直水平空白間隔((VBI)的時間資訊之後，觸控處理裝置130可以在垂直水平空白間隔((HBI)與/或水平空白間隔(VBI)內進行互電容偵測，以避免或減緩螢幕的顯示線更新造成對觸控感測電極的電磁干擾。The present invention does not limit how the touch processing device 130 knows when to start the blank interval (BI) time information, nor does it limit the use of one or more of the above six methods. Accordingly, the present invention provides a method and apparatus for how the touch processing device can know the time information of the blank interval (BI). After obtaining the horizontal blank interval (HBI) and the vertical horizontal blank interval (VBI) time information, the touch processing device 130 can perform mutual capacitance in the vertical horizontal blank interval ((HBI) and/or horizontal blank interval (VBI). Detecting to avoid or slow down the display line of the screen to cause touch sensingElectromagnetic interference of the electrodes.
第一個互電容偵測的實施例是全螢幕驅動偵測，請參考圖2所示。如圖2(A)，可以在單一個空白間隔(BI)內進行全螢幕驅動偵測，亦即利用全部的第一電極121發出驅動信號，令全部的第二電極122進行量測。觸控處理裝置130可以根據是否有量測信號超出一門檻值，來判斷是否有外部導電物件近接該觸控螢幕110。在某一範例中，如圖2(B)，可以在連續多個空白間隔(BI)內進行全螢幕驅動，並且在這些空白間隔中的量測信號加總，亦即將同一條第二電極的多次量測信號相加，判斷是否有任何一個量測信號加總值超過該門檻值。另一範例中，如圖2(C)，可以在不連續多個空白間隔(BI)內進行全螢幕驅動，並且在這些空白間隔中的量測信號加總，亦即將同一條第二電極的多次量測信號相加，判斷是否有任何一個量測信號加總值超過該門檻值。The first embodiment of mutual capacitance detection is full screen drive detection, please refer to Figure 2. As shown in FIG. 2(A), full screen drive detection can be performed in a single blank interval (BI), that is, all of the first electrodes 121 are used to generate a drive signal, and all of the second electrodes 122 are measured. The touch processing device 130 can determine whether an external conductive object is in close proximity to the touch screen 110 according to whether the measurement signal exceeds a threshold. In an example, as shown in FIG. 2(B), full screen driving can be performed in a plurality of consecutive blank spaces (BI), and the measurement signals in the blank spaces are summed, that is, the same second electrode The plurality of measurement signals are added together to determine whether any of the measurement signals plus the total value exceeds the threshold. In another example, as shown in FIG. 2(C), full screen driving can be performed in discrete blank spaces (BI), and the measurement signals in the blank spaces are summed, that is, the same second electrode The plurality of measurement signals are added together to determine whether any of the measurement signals plus the total value exceeds the threshold.
由於全螢幕驅動需要較多的電力，因此可以在間隔時間較長的相鄰垂直空白間隔(VBI)內進行一次全螢幕驅動偵測，進而減少電力消耗。也可以在不相鄰的垂直空白間隔(VBI)或水平空白間隔(HBI)內進行全螢幕驅動偵測，進而減少電力消耗。Since the full screen drive requires more power, a full screen drive detection can be performed in a relatively long interval of adjacent vertical blank intervals (VBI), thereby reducing power consumption. Full screen drive detection can also be performed in non-adjacent vertical white space (VBI) or horizontal white space (HBI) to reduce power consumption.
第二個互電容偵測的實施例是個別驅動偵測，請參考圖3所示。如圖3(A)，可以在單個水平空白間隔(HBI)內進行單條第一電極121的驅動偵測，亦即在水平空白間隔(HBI)提供驅動訊號給某一條第一電極121，並且令全部的第二電極122進行量測。如圖3(B)和(C)，也可以在相鄰或不相鄰的多個水平空白間隔(HBI)內進行單條第一電極121的驅動偵測，並且令全部的第二電極122進行量測與個別加總。這三種做法都能偵測到近接於該條第一電極121的外部導電物件。如果輪流在全部的第一電極121上實施個別驅動偵測，則可以偵測到整個觸控螢幕110上的多個近接物件。這裡所指的輪流，可以依照或不依照第一電極121的排列順序。The second embodiment of mutual capacitance detection is individual drive detection, please refer to FIG. As shown in FIG. 3(A), driving detection of a single first electrode 121 can be performed in a single horizontal blank interval (HBI), that is, a driving signal is supplied to a certain first electrode 121 at a horizontal blank interval (HBI), and All of the second electrodes 122 are measured. As shown in FIGS. 3(B) and (C), driving detection of a single first electrode 121 may be performed in a plurality of horizontal blank spaces (HBI) adjacent or not adjacent, and all of the second electrodes 122 may be performed. Measurement and individual summation. All three methods can detect the proximity to the articleAn external conductive object of an electrode 121. If the individual drive detection is performed on all of the first electrodes 121 in turn, a plurality of close objects on the entire touch screen 110 can be detected. The rotation referred to herein may or may not follow the order of arrangement of the first electrodes 121.
第三個互電容偵測的實施例是多條驅動偵測，請參考圖4所示。如圖4(A)，可以在單個水平空白間隔(HBI)內進行兩條以上的第一電極121驅動偵測，亦即在水平空白間隔(HBI)提供虛擬亂數碼一(PN,Pseudo-random Number)驅動訊號PN1給某一條第一電極121，同時提供虛擬亂數碼二驅動訊號PN2給另一條第一電極121並且令全部的第二電極122進行量測。接著觸控處理裝置130可以根據這些量測信號解出PN1與PN2的信號量，藉此判斷是否有外部物件近接這兩條第一電極121。雖然圖4均以兩條第一電極121與兩個虛擬亂數碼PN1和PN2作為範例，但可以推廣到Q條第一電極同時分別發送Q個虛擬亂數碼PN1~PNq。如圖4(B)和(C)，也可以在相鄰或不相鄰的多個水平空白間隔(HBI)內進行多條第一電極121的驅動偵測，並且令全部的第二電極122進行量測與個別加總。這三種做法都能偵測到近接於這些條第一電極121的外部導電物件。如果輪流在全部的第一電極121上實施個別驅動偵測，則可以偵測到整個觸控螢幕110上的多個近接物件。這裡所指的輪流，可以依照或不依照第一電極121的排列順序。The third embodiment of mutual capacitance detection is multiple drive detection, please refer to FIG. As shown in FIG. 4(A), two or more first electrodes 121 can be detected and detected in a single horizontal blank interval (HBI), that is, a virtual chaotic digital one is provided in a horizontal blank interval (HBI) (PN, Pseudo-random). The driving signal PN1 is given to a certain first electrode 121, and the virtual chaotic digital driving signal PN2 is supplied to the other first electrode 121 and all the second electrodes 122 are measured. Then, the touch processing device 130 can solve the signal quantities of PN1 and PN2 according to the measurement signals, thereby determining whether an external object is closely adjacent to the two first electrodes 121. Although FIG. 4 is exemplified by two first electrodes 121 and two virtual random numbers PN1 and PN2, it can be generalized to the Q first electrodes and simultaneously transmit Q virtual random numbers PN1 PNPNq. 4(B) and (C), driving detection of the plurality of first electrodes 121 may be performed in a plurality of horizontal blank spaces (HBI) adjacent or not adjacent, and all the second electrodes 122 may be made. Perform measurements and individual summations. All three methods can detect external conductive objects that are adjacent to the strips of first electrodes 121. If the individual drive detection is performed on all of the first electrodes 121 in turn, a plurality of close objects on the entire touch screen 110 can be detected. The rotation referred to herein may or may not follow the order of arrangement of the first electrodes 121.
第四個互電容偵測的實施例是更新互電容偵測的基準值。當觸控感測器130確定沒有外部導電物件近接觸控螢幕110之後，可以利用圖3或圖4的實施例所示的方式量取未受到更新顯示線干擾的信號作為互電容偵測的基準值。雖然圖3與圖4的實施例均使用水平空白間隔(HBI)作為範例，但也能夠推廣到垂直空白間隔(VBI)。The fourth embodiment of mutual capacitance detection is to update the reference value of mutual capacitance detection. After the touch sensor 130 determines that there is no external conductive object near the touch screen 110, the signal not interfered by the updated display line can be measured by using the method shown in the embodiment of FIG. 3 or FIG. 4 as a reference for mutual capacitance detection. value. Although the embodiments of FIGS. 3 and 4 both use the horizontal blanking interval (HBI) as an example, they can also be generalized to the vertical blanking interval (VBI).
除此之外，上述的個別驅動偵測與多條驅動偵測，可以考慮到所驅動的第一電極121距離第二電極122所連接感測器的遠近，調整驅動信號的電壓大小與驅動時間長短，或者調整第二電極122所連接感測器的增益、感測時間長短、感測時間點的延後時間等參數。In addition, the above-mentioned individual driving detection and multiple driving detections can take into account the distance between the driven first electrode 121 and the sensor connected to the second electrode 122, and adjust the voltage and driving time of the driving signal. The length is short, or the parameters of the gain of the sensor connected to the second electrode 122, the length of the sensing time, and the delay time of the sensing time point are adjusted.
比方說，驅動電路透過圖1上端的第一電極121發出驅動信號之後，所感應的電流要傳遞整條第二電極122才能抵達位在觸控處理裝置130上的感測電路。然而，驅動電路透過圖1下方的第一電極121發出驅動信號之後，所感應的電流只需要藉由第二電極122的一小部分，就能抵達位在觸控處理裝置130上的感測電路。因此，可以根據發出驅動信號的第一電極121的位置，進而調整驅動電路與感測電路的相關參數。這些調整可以在類比前端(AFE,Analog Front-End)上進行，也可以在數位後端上進行。For example, after the driving circuit sends a driving signal through the first electrode 121 at the upper end of FIG. 1, the induced current is transmitted to the entire second electrode 122 to reach the sensing circuit located on the touch processing device 130. However, after the driving circuit sends the driving signal through the first electrode 121 in FIG. 1 , the induced current only needs to pass through a small portion of the second electrode 122 to reach the sensing circuit on the touch processing device 130. . Therefore, the relevant parameters of the driving circuit and the sensing circuit can be adjusted according to the position of the first electrode 121 that emits the driving signal. These adjustments can be made on the analog front end (AFE, Analog Front-End) or on the digital back end.
再者，在圖2至圖4的範例中，驅動電路與感測電路的驅動時間與感測時間均未占用到空白間隔(BI)的時間段。然而，根據前述的調整之後，驅動時間與感測時間可能會和空白間隔(BI)的時間段重疊。Moreover, in the examples of FIGS. 2 to 4, neither the driving time nor the sensing time of the driving circuit and the sensing circuit occupy the time interval of the blank interval (BI). However, after the aforementioned adjustment, the driving time and the sensing time may overlap with the time interval of the blank interval (BI).
另外，雖然前述所講的都是應用在互電容偵測，但得知空白間隔(BI)資訊之後，觸控處理裝置也可以利用空白間隔(BI)時間進行其他種偵測。例如，可以在空白間隔(BI)內進行干擾信號的掃描，或者是在空白間隔(BI)內進行自電容偵測。總上所述，無論是在空白間隔(BI)內進行何種觸控偵測，本申請應該可以達到盡量避免或減緩螢幕的顯示線更新造成對觸控感測電極的電磁干擾之目的。In addition, although the foregoing is applied to mutual capacitance detection, after the blank interval (BI) information is known, the touch processing device can also perform other types of detection using the blank interval (BI) time. For example, the interference signal can be scanned within a blank interval (BI) or self-capacitance detection within a blank interval (BI). In general, regardless of the touch detection performed in the blank interval (BI), the present application should be able to avoid or slow down the display line of the screen to cause electromagnetic interference to the touch sensing electrodes.
請參考圖5所示，其為根據本發明一實施例的一種觸控方法的一流程示意圖，為了避免觸控螢幕的像素更新時的干擾，其可以適用於圖1的觸控處理裝置130。該觸控方法可以包含但不限於下列步驟。步驟510：取得一觸控螢幕的空白期間的資訊。前述已經提到六種方法，在此都可以用來取得空白期間的資訊。接著於步驟520，透過該觸控螢幕的一第一驅動電極發出驅動信號。最後，於步驟530，透過該觸控螢幕的多條感測電極量測該驅動信號的感應信號，用於偵測在該一第一驅動電極附近的一近接物件。Please refer to FIG. 5 , which is a schematic flowchart of a touch method according to an embodiment of the invention. In order to avoid interference when the pixel of the touch screen is updated, the method can be applied toThe touch processing device 130 of FIG. The touch method may include, but is not limited to, the following steps. Step 510: Acquire information of a blank period of the touch screen. The foregoing has mentioned six methods, which can be used here to obtain information during the blank period. Next, in step 520, a driving signal is sent through a first driving electrode of the touch screen. Finally, in step 530, the sensing signals of the driving signals are measured through the plurality of sensing electrodes of the touch screen for detecting a proximity object in the vicinity of the first driving electrode.
請參考圖6所示，其為根據本發明一實施例的一種觸控處理裝置之一方塊示意圖。該觸控處理裝置130可以適用於圖1的電子系統，其包含驅動電路610，用於連接到一觸控螢幕的各條第一電極或驅動電極。該觸控處理裝置130還可以包含感測電路620，用於連接到該觸控螢幕的各條第二電極或感測電極。該觸控處理裝置130還可以包含連接到該驅動電路610與該感測電路620的處理器630，其包含軟體與硬體的各式組合，能夠用來實施上述的各個實施例，特別是圖5所示的觸控方法。Please refer to FIG. 6 , which is a block diagram of a touch processing device according to an embodiment of the invention. The touch processing device 130 can be applied to the electronic system of FIG. 1 and includes a driving circuit 610 for connecting to each of the first electrodes or driving electrodes of a touch screen. The touch processing device 130 can also include a sensing circuit 620 for connecting to each of the second electrodes or sensing electrodes of the touch screen. The touch processing device 130 can also include a processor 630 coupled to the driving circuit 610 and the sensing circuit 620, which includes various combinations of software and hardware, and can be used to implement the various embodiments described above, particularly The touch method shown in 5.
根據一實施例，為了避免觸控螢幕的像素更新時的干擾，本發明提供一種觸控方法，包含：在一第一空白期間，透過一觸控螢幕的一第一驅動電極發出驅動信號；以及在該第一空白期間，透過該觸控螢幕的多條感測電極量測該驅動信號的感應信號，用於偵測在該第一驅動電極附近的一近接物件。According to an embodiment, in order to avoid interference when the pixels of the touch screen are updated, the present invention provides a touch method, including: driving a driving signal through a first driving electrode of a touch screen during a first blank period; During the first blank period, the sensing signals of the driving signal are measured through the plurality of sensing electrodes of the touch screen for detecting a proximity object in the vicinity of the first driving electrode.
在一實施例中，為了增加偵測到該近接物件的機會，該觸控方法更包含：在包含該第一空白期間的多個空白期間，透過該第一驅動電極發出該驅動信號；以及在該多個空白期間，透過該觸控螢幕的該多條感測電極量測並加總該驅動信號的感應信號，用於偵測在該第一驅動電極附近的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該多個空白期間是多個非連續的水平空白期間。In an embodiment, in order to increase the chance of detecting the proximity object, the touch method further includes: transmitting the driving signal through the first driving electrode during a plurality of blanks during the first blank period; and During the plurality of blanks, the plurality of sensing electrodes of the touch screen measure and add the sensing signals of the driving signals for detecting the first driving electrodesNear the close object. In one variation, to increase the chances of detecting the proximity object, the plurality of blank periods are a plurality of non-contiguous horizontal blank periods.
在一實施例中，為了減少偵測全螢幕的時間，該觸控方法更包含：在該第一空白期間，透過一第二驅動電極發出包含一第二虛擬亂數碼的該驅動信號，其中該第一驅動電極發出的該驅動信號包含一第一虛擬亂數碼驅動信號；以及在該第一空白期間，透過該多條感測電極量測該驅動信號的感應信號，用於偵測在該第一驅動電極與該第二驅動電極附近的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該觸控感測方法更包含：在包含該第一空白期間的多個空白期間，透過該第一驅動電極與該第二驅動電極發出該驅動信號；以及在該多個空白期間，透過該多條感測電極量測並加總該驅動信號的感應信號，用於偵測在該第一驅動電極與該第二驅動電極附近的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該多個空白期間是多個非連續的水平空白期間。In an embodiment, in order to reduce the time for detecting the full screen, the touch method further includes: during the first blanking, transmitting the driving signal including a second virtual random number through a second driving electrode, wherein The driving signal sent by the first driving electrode includes a first virtual random digital driving signal; and during the first blanking, the sensing signal of the driving signal is measured through the plurality of sensing electrodes for detecting a drive electrode and the proximity object adjacent the second drive electrode. In a variation, in order to increase the chance of detecting the proximity object, the touch sensing method further includes: transmitting the first driving electrode and the second driving electrode during a plurality of blanks including the first blank period Transmitting the driving signal; and measuring and summing the sensing signals of the driving signals through the plurality of sensing electrodes for detecting the vicinity of the first driving electrode and the second driving electrode during the plurality of blanking periods The proximity object. In one variation, to increase the chances of detecting the proximity object, the plurality of blank periods are a plurality of non-contiguous horizontal blank periods.
在一實施例中，為了判斷觸控螢幕上是否有近接物件，該觸控方法更包含：在該第一空白期間，透過該觸控螢幕的全部驅動電極發出該驅動信號；以及在該第一空白期間，透過該多條感測電極量測該驅動信號的感應信號，用於偵測在該觸控螢幕上的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該觸控方法更包含：在包含該第一空白期間的多個空白期間，透過該全部驅動電極發出該驅動信號；以及在該多個空白期間，透過該多條感測電極量測並加總該驅動信號的感應信號，用於偵測在該觸控螢幕上的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該多個空白期間是多個非連續的水平空白期間。In an embodiment, in order to determine whether there is a proximity object on the touch screen, the touch method further includes: transmitting the driving signal through all the driving electrodes of the touch screen during the first blank; and at the first During the blanking period, the sensing signal of the driving signal is measured through the plurality of sensing electrodes for detecting the proximity object on the touch screen. In a variation, in order to increase the chance of detecting the proximity object, the touch method further includes: transmitting the driving signal through the all driving electrodes during a plurality of blanks during the first blank period; and During the blank period, the sensing signals of the driving signals are measured and summed through the plurality of sensing electrodes for detecting the proximity object on the touch screen. In one variation, to increase the chances of detecting the proximity object, the plurality of blank periods are a plurality of non-contiguous horizontal blank periods.
在一實施例中，為了讓接收到的驅動信號具有一致性，該觸控方法更包含：根據該第一驅動電極距離該多條感測電極所連接感測器的遠近，進行下列調整或其任意組合：調整驅動信號的電壓大小、驅動時間長短、調整該多條感測電極所連接感測器的增益、感測時間長短、感測時間點的延後時間。In an embodiment, in order to make the received driving signal have consistency, the touch method further includes: performing the following adjustment according to the distance of the first driving electrode from the sensor connected to the plurality of sensing electrodes or Any combination: adjusting the voltage of the driving signal, the length of the driving time, adjusting the gain of the sensor connected to the plurality of sensing electrodes, the length of the sensing time, and the delay time of the sensing time point.
根據一實施例，為了避免觸控螢幕的像素更新時的干擾，本發明提供一種觸控處理裝置，包含：一驅動電路，用於連接一觸控螢幕的多條驅動電極；一感測電路，用於連接該觸控螢幕的多條感測電極；以及連接該驅動電路與該感測電路的一處理器，用於：在一第一空白期間，令該驅動電路透過一第一驅動電極發出驅動信號；以及在該第一空白期間，令該感測電路透過該多條感測電極量測該驅動信號的感應信號，用於偵測在該第一驅動電極附近的一近接物件。According to an embodiment, in order to avoid interference when the pixel of the touch screen is updated, the present invention provides a touch processing device, including: a driving circuit for connecting a plurality of driving electrodes of a touch screen; and a sensing circuit, a plurality of sensing electrodes for connecting to the touch screen; and a processor connecting the driving circuit and the sensing circuit, configured to: send the driving circuit through a first driving electrode during a first blank period And driving the sensing signal through the plurality of sensing electrodes to detect a proximity object in the vicinity of the first driving electrode.
在一實施例中，為了增加偵測到該近接物件的機會，該處理器更用於：在包含該第一空白期間的多個空白期間，令該驅動電路透過該第一驅動電極發出該驅動信號；在該多個空白期間，令該感測電路透過該觸控螢幕的該多條感測電極量測並加總該驅動信號的感應信號，用於偵測在該第一驅動電極附近的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該多個空白期間是多個非連續的水平空白期間。In an embodiment, in order to increase the chance of detecting the proximity object, the processor is further configured to: when the plurality of blanks during the first blank period are included, causing the driving circuit to send the driving through the first driving electrode a signal that is sensed by the sensing circuit through the plurality of sensing electrodes of the touch screen and summed up the sensing signal of the driving signal for detecting near the first driving electrode The proximity object. In one variation, to increase the chances of detecting the proximity object, the plurality of blank periods are a plurality of non-contiguous horizontal blank periods.
在一實施例中，為了減少偵測全螢幕的時間，該處理器更用於：在該第一空白期間，令該驅動電路透過一第二驅動電極發出包含一第二虛擬亂數碼的該驅動信號，其中該第一驅動電極發出的該驅動信號包含一第一虛擬亂數碼驅動信號；以及在該第一空白期間，令該感測電路透過該多條感測電極量測該驅動信號的感應信號，用於偵測在該第一驅動電極與該第二驅動電極附近的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該處理器更用於：在包含該第一空白期間的多個空白期間，令該驅動電路透過該第一驅動電極與該第二驅動電極發出該驅動信號；以及在該多個空白期間，令該感測電路透過該多條感測電極量測並加總該驅動信號的感應信號，用於偵測在該第一驅動電極與該第二驅動電極附近的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該多個空白期間是多個非連續的水平空白期間。In an embodiment, in order to reduce the time for detecting the full screen, the processor is further configured to: during the first blank period, causing the driving circuit to send the driving including a second virtual chaotic digital signal through a second driving electrode a signal, wherein the driving signal sent by the first driving electrode comprises a first virtual random digital driving signal; and during the first blanking, the sensing circuit is transmittedThe plurality of sensing electrodes measure the sensing signal of the driving signal for detecting the proximity object in the vicinity of the first driving electrode and the second driving electrode. In a variation, in order to increase the chance of detecting the proximity object, the processor is further configured to: pass the driving circuit through the first driving electrode and the second during a plurality of blanks during the first blank period The driving electrode sends the driving signal; and during the plurality of blanks, causing the sensing circuit to measure and sum up the sensing signal of the driving signal through the plurality of sensing electrodes, for detecting at the first driving electrode The proximity object near the second drive electrode. In one variation, to increase the chances of detecting the proximity object, the plurality of blank periods are a plurality of non-contiguous horizontal blank periods.
在一實施例中，為了判斷觸控螢幕上是否有近接物件，該處理器更用於：在該第一空白期間，令該驅動電路透過該觸控螢幕的全部驅動電極發出該驅動信號；以及在該第一空白期間，令該感測電路透過該多條感測電極量測該驅動信號的感應信號，用於偵測在該觸控螢幕上的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該處理器更用於：在包含該第一空白期間的多個空白期間，令該驅動電路透過該全部驅動電極發出該驅動信號；以及在該多個空白期間，令該感測電路透過該多條感測電極量測並加總該驅動信號的感應信號，用於偵測在該觸控螢幕上的該近接物件。在一變化中，為了增加偵測到該近接物件的機會，該多個空白期間是多個非連續的水平空白期間。In an embodiment, in order to determine whether there is a proximity object on the touch screen, the processor is further configured to: when the first blank period, cause the driving circuit to send the driving signal through all driving electrodes of the touch screen; During the first blanking period, the sensing circuit measures the sensing signal of the driving signal through the plurality of sensing electrodes for detecting the proximity object on the touch screen. In a variation, in order to increase the chance of detecting the proximity object, the processor is further configured to: when the plurality of blanks during the first blank period are included, cause the driving circuit to send the driving signal through the all driving electrodes; And sensing, by the sensing circuit, the sensing signals of the driving signal through the plurality of sensing electrodes for detecting the proximity object on the touch screen. In one variation, to increase the chances of detecting the proximity object, the plurality of blank periods are a plurality of non-contiguous horizontal blank periods.
在一實施例中，為了讓接收到的驅動信號具有一致性，該處理器更用於：根據該第一驅動電極距離該多條感測電極所連接感測器的遠近，進行下列調整或其任意組合：令該驅動電路調整驅動信號的電壓大小、驅動時間長短、以及令該感測電路調整該多條感測電極所連接感測器的增益、感測時間長短、感測時間點的延後時間。In an embodiment, in order to make the received driving signal have consistency, the processor is further configured to: perform the following adjustment according to the distance of the first driving electrode from the sensor connected to the plurality of sensing electrodes or Arbitrary combination: the driving circuit adjusts the voltage of the driving signal, the driving time, and causes the sensing circuit to adjust the increase of the sensor connected to the plurality of sensing electrodesBenefit, length of sensing time, delay time of sensing time point.
根據一實施例，為了避免觸控螢幕的像素更新時的干擾，本發明提供一種電子系統，包含：一觸控螢幕；以及連接該觸控螢幕的一觸控處理裝置。該觸控處理裝置，包含：一驅動電路，用於連接該觸控螢幕的多條驅動電極；一感測電路，用於連接該觸控螢幕的多條感測電極；以及連接該驅動電路與該感測電路的一處理器，用於：在一第一空白期間，令該驅動電路透過一第一驅動電極發出驅動信號；以及在該第一空白期間，令該感測電路透過該多條感測電極量測該驅動信號的感應信號，用於偵測在該第一驅動電極附近的一近接物件。According to an embodiment, the present invention provides an electronic system including: a touch screen; and a touch processing device connected to the touch screen. The touch processing device includes: a driving circuit for connecting a plurality of driving electrodes of the touch screen; a sensing circuit for connecting the plurality of sensing electrodes of the touch screen; and connecting the driving circuit with a processor of the sensing circuit, configured to: when a first blank period, cause the driving circuit to send a driving signal through a first driving electrode; and during the first blanking, let the sensing circuit pass the plurality of strips The sensing electrode measures the sensing signal of the driving signal for detecting a proximity object in the vicinity of the first driving electrode.
總上所述，本發明所提供的觸控方法、觸控處理裝置與電子系統，可以在盡量避免在觸控螢幕的顯示線更新時進行感測，以減少對觸控感測電極的電磁干擾。In summary, the touch control method, the touch processing device, and the electronic system provided by the present invention can avoid sensing when the display line of the touch screen is updated to reduce electromagnetic interference to the touch sensing electrode. .
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| US15/599,910US10268327B2 (en) | 2016-05-19 | 2017-05-19 | Touch sensitive method, apparatus and electronic system for reducing interferences from pixel update |
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|---|---|---|---|
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| Country | Link |
|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888561B (en)* | 2018-09-07 | 2023-10-13 | 群创光电股份有限公司 | touch display device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201116886A (en)* | 2009-11-09 | 2011-05-16 | Pixel Technologies Inc U | Touch display apparatus |
| TW201319891A (en)* | 2011-09-29 | 2013-05-16 | Japan Display West Inc | Display, touch detection unit, driving method, and electronic unit |
| TW201335809A (en)* | 2012-02-23 | 2013-09-01 | Chunghwa Picture Tubes Ltd | Touch display apparatus |
| TW201351221A (en)* | 2012-06-05 | 2013-12-16 | Innocom Tech Shenzhen Co Ltd | Image display system and touch display device |
| CN104428741A (en)* | 2012-07-03 | 2015-03-18 | 夏普株式会社 | A capacitive touch panel with height determination function |
| TW201519037A (en)* | 2013-11-08 | 2015-05-16 | Egalax Empia Technology Inc | Method, apparatus, and system for detecting transmitter approximating or touching touch sensitive display |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201116886A (en)* | 2009-11-09 | 2011-05-16 | Pixel Technologies Inc U | Touch display apparatus |
| TW201319891A (en)* | 2011-09-29 | 2013-05-16 | Japan Display West Inc | Display, touch detection unit, driving method, and electronic unit |
| TW201335809A (en)* | 2012-02-23 | 2013-09-01 | Chunghwa Picture Tubes Ltd | Touch display apparatus |
| TW201351221A (en)* | 2012-06-05 | 2013-12-16 | Innocom Tech Shenzhen Co Ltd | Image display system and touch display device |
| CN104428741A (en)* | 2012-07-03 | 2015-03-18 | 夏普株式会社 | A capacitive touch panel with height determination function |
| TW201519037A (en)* | 2013-11-08 | 2015-05-16 | Egalax Empia Technology Inc | Method, apparatus, and system for detecting transmitter approximating or touching touch sensitive display |
| Publication number | Publication date |
|---|---|
| TW201805785A (en) | 2018-02-16 |
| Publication | Publication Date | Title |
|---|---|---|
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