TWI688931B

TWI688931B - Display device

Info

Publication number: TWI688931B
Application number: TW108113482A
Authority: TW
Inventors: 張哲嘉; 李家圻; 莊銘宏; 鍾俊甫; 陳政德
Original assignee: 友達光電股份有限公司
Priority date: 2019-04-17
Filing date: 2019-04-17
Publication date: 2020-03-21
Also published as: CN111007955B; TW202040544A; CN111007955A

Abstract

A display device is provided. The display device includes first and second switching circuits, a data signal selection circuit, and a detection signal selection circuit. The first switching circuit receives a plurality of control signals and provides a plurality of data control signals according to a display status signal and a detection status signal. The data signal selection circuit transmits a plurality of display data to a touch panel according to the data control signal in a display time interval. The second switching circuit receives the control signal and provides a plurality of detection control signals according to the display state signal and the detection state signal. The detection signal selection circuit transmits a detection signal to the touch panel according to the detection control signal in a detection time interval.

Description

Display device

本發明是有關於一種顯示裝置，且特別是有關於一種能夠使資料信號選擇電路以及偵測信號選擇電路共用相同的控制信號以進行操作的顯示裝置。The present invention relates to a display device, and in particular to a display device capable of enabling the data signal selection circuit and the detection signal selection circuit to share the same control signal for operation.

在習知技術中，具有觸控功能的顯示裝置可以透過資料信號選擇電路來依據第一控制信號的時序狀態，以對應的提供顯示資料至觸控面板。並且，顯示裝置也可以透過偵測信號選擇電路來依據不同於第一控制信號的第二控制信號的時序狀態，以對應的提供偵測信號至所述觸控面板，藉以偵測所述觸控面板的觸控狀態。值得一提的是，在習知技術中，所述資料信號選擇電路與所述偵測信號選擇電路通常會受控於不同的控制信號（或者連接至不同的控制線）。In the conventional technology, a display device with a touch function can provide display data to the touch panel according to the timing state of the first control signal through the data signal selection circuit. Moreover, the display device can also provide a detection signal to the touch panel according to the timing state of the second control signal different from the first control signal through the detection signal selection circuit to detect the touch The touch state of the panel. It is worth mentioning that, in the conventional technology, the data signal selection circuit and the detection signal selection circuit are usually controlled by different control signals (or connected to different control lines).

在此情況下，用以產生所述第一控制信號以及所述第二控制信的相關電路的接腳（Pin）數量，將會因為資料信號選擇電路以及偵測信號選擇電路的不同設計需求而受到影響，使得所述接腳數量增加，且提升了顯示裝置整體的成本。In this case, the number of pins of the related circuits used to generate the first control signal and the second control signal will be due to different design requirements of the data signal selection circuit and the detection signal selection circuit Affected, the number of the pins is increased, and the cost of the entire display device is increased.

本發明提供一種能夠使資料信號選擇電路以及偵測信號選擇電路共用相同的控制信號的顯示裝置，藉以有效地降低接腳數量以及顯示裝置整體的成本。The present invention provides a display device that enables the data signal selection circuit and the detection signal selection circuit to share the same control signal, thereby effectively reducing the number of pins and the overall cost of the display device.

本發明的顯示裝置包括第一切換電路、資料信號選擇電路、第二切換電路以及偵測信號選擇電路。第一切換電路耦接至多條控制線，以分別接收多個控制信號，第一切換電路依據顯示狀態信號以及偵測狀態信號以提供多個資料控制信號。資料信號選擇電路耦接至第一切換電路，並在顯示時間區間，資料信號選擇電路依據資料控制信號以傳輸多個顯示資料至觸控面板。第二切換電路耦接至控制線，以分別接收控制信號，第二切換電路依據顯示狀態信號以及偵測狀態信號以提供多個偵測控制信號。偵測信號選擇電路耦接至第二切換電路，並在偵測時間區間，偵測信號選擇電路依據偵測控制信號以傳輸偵測信號至觸控面板。The display device of the present invention includes a first switching circuit, a data signal selection circuit, a second switching circuit, and a detection signal selection circuit. The first switching circuit is coupled to the plurality of control lines to receive a plurality of control signals respectively. The first switching circuit provides a plurality of data control signals according to the display status signal and the detection status signal. The data signal selection circuit is coupled to the first switching circuit, and during the display time interval, the data signal selection circuit transmits multiple display data to the touch panel according to the data control signal. The second switching circuit is coupled to the control line to receive control signals respectively. The second switching circuit provides multiple detection control signals according to the display state signal and the detection state signal. The detection signal selection circuit is coupled to the second switching circuit, and during the detection time interval, the detection signal selection circuit transmits the detection signal to the touch panel according to the detection control signal.

基於上述，本發明的顯示裝置的資料信號選擇電路以及偵測信號選擇電路，分別可以透過各自對應的切換電路來共同耦接至相同的控制線，以接收相同的控制信號。如此一來，本發明的顯示裝置可以僅透過這些控制信號即可同時控制所述資料信號選擇電路以及偵測信號選擇電路的操作動作，藉以有效的降低接腳數量以及顯示裝置整體的成本。Based on the above, the data signal selection circuit and the detection signal selection circuit of the display device of the present invention can be coupled to the same control line through their corresponding switching circuits to receive the same control signal. In this way, the display device of the present invention can simultaneously control the operation of the data signal selection circuit and the detection signal selection circuit through only these control signals, thereby effectively reducing the number of pins and the overall cost of the display device.

為讓本發明的上述特徵和優點能更明顯易懂，下文特舉實施例，並配合所附圖式作詳細說明如下。In order to make the above-mentioned features and advantages of the present invention more obvious and understandable, the embodiments are specifically described below in conjunction with the accompanying drawings for detailed description as follows.

在本案說明書全文(包括申請專利範圍)中所使用的「耦接（或連接）」一詞可指任何直接或間接的連接手段。舉例而言，若文中描述第一裝置耦接（或連接）於第二裝置，則應該被解釋成該第一裝置可以直接連接於該第二裝置，或者該第一裝置可以透過其他裝置或某種連接手段而間接地連接至該第二裝置。另外，凡可能之處，在圖式及實施方式中使用相同標號的元件/構件/步驟代表相同或類似部分。不同實施例中使用相同標號或使用相同用語的元件/構件/步驟可以相互參照相關說明。The term "coupling (or connection)" used in the entire specification of this case (including the scope of patent application) may refer to any direct or indirect connection means. For example, if it is described that the first device is coupled (or connected) to the second device, it should be interpreted that the first device can be directly connected to the second device, or the first device can be connected to another device or a certain device. Connection means indirectly connected to the second device. In addition, wherever possible, elements/components/steps using the same reference numbers in the drawings and embodiments represent the same or similar parts. Elements/components/steps that use the same reference numbers or use the same terminology in different embodiments may refer to related descriptions with each other.

圖1是依照本發明一實施例的顯示裝置100的電路方塊示意圖。請參照圖1，顯示裝置100包括切換電路110、切換電路120、資料信號選擇電路130、偵測信號選擇電路140、觸控面板150以及偵測電路160。切換電路110以及切換電路120可以共同的耦接至控制線CL1～CL3，以共同的接收控制信號CS1～CS3。並且，切換電路110以及切換電路120亦可共同的接收顯示狀態信號TPSW、偵測狀態信號GOFF以及電壓準位信號FVS。其中，在本實施例中，顯示狀態信號TPSW可用以指示顯示裝置100操作於顯示時間區間，偵測狀態信號GOFF可用以指示顯示裝置100操作於偵測時間區間，電壓準位信號FVS可用以提供具有閘極高電壓或閘極低電壓的電壓準位。FIG. 1 is a schematic circuit block diagram of a display device 100 according to an embodiment of the invention. 1, the display device 100 includes a switching circuit 110, a switching circuit 120, a data signal selection circuit 130, a detection signal selection circuit 140, a touch panel 150, and a detection circuit 160. The switching circuit 110 and the switching circuit 120 can be commonly coupled to the control lines CL1 ˜ CL3 to receive the control signals CS1 ˜ CS3 in common. Moreover, the switching circuit 110 and the switching circuit 120 may also receive the display state signal TPSW, the detection state signal GOFF and the voltage level signal FVS. In this embodiment, the display state signal TPSW can be used to instruct the display device 100 to operate in the display time interval, the detection state signal GOFF can be used to instruct the display device 100 to operate in the detection time interval, and the voltage level signal FVS can be used to provide It has a voltage level of high gate voltage or low gate voltage.

在本實施例中，切換電路110可用以依據顯示狀態信號TPSW以及偵測狀態信號GOFF來提供多個資料控制信號DCS1～DCSN。切換電路120可用以依據顯示狀態信號TPSW以及偵測狀態信號GOFF來提供多個偵測控制信號TCS11～TCS1N。In this embodiment, the switching circuit 110 can be used to provide a plurality of data control signals DCS1 to DCSN according to the display status signal TPSW and the detection status signal GOFF. The switching circuit 120 can be used to provide a plurality of detection control signals TCS11 to TCS1N according to the display state signal TPSW and the detection state signal GOFF.

資料信號選擇電路130耦接於切換電路110以及觸控面板150之間。資料信號選擇電路130接收由切換電路110所提供的資料控制信號DCS1～DCSN，並且，資料信號選擇電路130亦可接收由源極驅動電路（未繪示）所提供的多個顯示資料DS1～DSN。其中，資料信號選擇電路130可以依據資料控制信號DCS1～DCSN的時序狀態，以依序的提供顯示資料DS1～DSN至後端的觸控面板150。The data signal selection circuit 130 is coupled between the switching circuit 110 and the touch panel 150. The data signal selection circuit 130 receives the data control signals DCS1~DCSN provided by the switching circuit 110, and the data signal selection circuit 130 may also receive a plurality of display data DS1~DSN provided by the source driving circuit (not shown) . The data signal selection circuit 130 can sequentially provide the display data DS1 to DSN to the rear touch panel 150 according to the timing status of the data control signals DCS1 to DCSN.

另一方面，偵測信號選擇電路140耦接於切換電路120、觸控面板150以及偵測電路160之間。其中，偵測電路160可用以提供偵測信號TS至偵測信號選擇電路140。具體而言，在本實施例中，偵測信號選擇電路140可以接收偵測控制信號TCS11～TCS1N以及偵測信號TS。並且，偵測信號選擇電路140可以依據偵測控制信號TCS11～TCS1N的時序狀態，以提供偵測信號TS至後端的觸控面板150。On the other hand, the detection signal selection circuit 140 is coupled between the switching circuit 120, the touch panel 150 and the detection circuit 160. The detection circuit 160 can be used to provide the detection signal TS to the detection signal selection circuit 140. Specifically, in this embodiment, the detection signal selection circuit 140 can receive the detection control signals TCS11 to TCS1N and the detection signal TS. In addition, the detection signal selection circuit 140 can provide the detection signal TS to the rear touch panel 150 according to the timing state of the detection control signals TCS11 to TCS1N.

觸控面板150耦接至資料信號選擇電路130以及偵測信號選擇電路140，以分別接收顯示資料DS1～DSN以及偵測信號TS。其中，觸控面板150具有多個觸控區域，且各個觸控區域是由多個畫素陣列所組成。進一步來說，當顯示裝置100操作於顯示時間區間時，觸控面板150可以接收顯示資料DS1～DSN，並依據這些顯示資料DS1～DSN來進行顯示畫面的操作。相對的，當顯示裝置100操作於偵測時間區間時，觸控面板150可以接收偵測信號TS，以使偵測電路160可以依據偵測信號TS來對各個觸控區域的觸控狀態進行偵測。The touch panel 150 is coupled to the data signal selection circuit 130 and the detection signal selection circuit 140 to receive the display data DS1 to DSN and the detection signal TS, respectively. The touch panel 150 has multiple touch areas, and each touch area is composed of multiple pixel arrays. Further, when the display device 100 operates in the display time interval, the touch panel 150 can receive the display data DS1 ˜DSN, and operate the display screen according to the display data DS1 ˜DSN. On the contrary, when the display device 100 operates in the detection time interval, the touch panel 150 can receive the detection signal TS, so that the detection circuit 160 can detect the touch state of each touch area according to the detection signal TS Measurement.

需注意到的是，本領域所屬技術人員可以根據顯示裝置100的設計需求來決定上述控制線、資料控制信號、偵測控制信號以及顯示資料的數量，本實施例並不侷限於上述所舉例的數量。其中，上述的N為正整數。It should be noted that those skilled in the art can determine the number of control lines, data control signals, detection control signals, and display data according to the design requirements of the display device 100. This embodiment is not limited to the above-mentioned examples. Quantity. Here, the aforementioned N is a positive integer.

關於顯示裝置100的操作細節，詳細來說，本實施例的顯示裝置100可以操作於顯示時間區間以及偵測時間區間。其中，當顯示裝置100操作於顯示時間區間時，顯示裝置100可以依據顯示狀態信號TPSW以及偵測狀態信號GOFF來致能（Enable）切換電路110且禁能（Disable）切換電路120，以使切換電路110可以啟動資料信號選擇電路130的操作動作，並促使觸控面板150可以進行顯示畫面的操作。相對的，當顯示裝置100操作於偵測時間區間時，顯示裝置100可以依據顯示狀態信號TPSW以及偵測狀態信號GOFF來致能切換電路120且禁能切換電路110，以使切換電路120可以啟動偵測信號選擇電路140的操作動作，並促使偵測電路160可以開始對觸控面版150中的各個觸控區域的觸控狀態進行偵測。Regarding the operation details of the display device 100, in detail, the display device 100 of this embodiment can be operated in the display time interval and the detection time interval. When the display device 100 operates in the display time interval, the display device 100 can enable the switching circuit 110 and disable the switching circuit 120 according to the display status signal TPSW and the detection status signal GOFF to enable switching The circuit 110 can activate the operation of the data signal selection circuit 130 and cause the touch panel 150 to perform the operation of displaying the screen. On the contrary, when the display device 100 operates in the detection time interval, the display device 100 can enable the switching circuit 120 and disable the switching circuit 110 according to the display status signal TPSW and the detection status signal GOFF, so that the switching circuit 120 can be activated The detection signal selection circuit 140 operates and causes the detection circuit 160 to start detecting the touch state of each touch area in the touch panel 150.

舉例來說，當顯示裝置100操作於顯示時間區間時，顯示狀態信號TPSW可以被設定為致能狀態且偵測狀態信號GOFF可以被設定為禁能狀態。並且，此時的電壓準位信號FVS可以具有閘極高電壓的電壓準位。在此情況下，切換電路110可以依據顯示狀態信號TPSW而依序的接收控制信號CS1～CS3，並將控制信號CS1～CS3作為資料控制信號（亦即，資料控制信號DCS1～DCS3），以提供至資料信號選擇電路130。接著，資料信號選擇電路130可以依據這些資料控制信號DCS1～DCS3的時序狀態，來依序的提供顯示資料DS1～DSN至觸控面板150。For example, when the display device 100 operates in the display time interval, the display state signal TPSW may be set to the enabled state and the detection state signal GOFF may be set to the disabled state. Moreover, the voltage level signal FVS at this time may have a voltage level of the gate high voltage. In this case, the switching circuit 110 may sequentially receive the control signals CS1 to CS3 according to the display status signal TPSW, and use the control signals CS1 to CS3 as the data control signals (that is, the data control signals DCS1 to DCS3) to provide To the data signal selection circuit 130. Then, the data signal selection circuit 130 can sequentially provide the display data DS1 to DSN to the touch panel 150 according to the timing status of the data control signals DCS1 to DCS3.

值得一提的是，在顯示裝置100操作於顯示時間區間的情況下，切換電路120可以依據顯示狀態信號TPSW而接收電壓準位信號FVS，並將具有閘極高電壓的電壓準位的電壓準位信號FVS作為偵測控制信號，以提供至偵測信號選擇電路140。藉此，顯示裝置100可以避免偵測信號選擇電路140在顯示時間區間時發生浮接或誤動作的情況發生。It is worth mentioning that, when the display device 100 operates in the display time interval, the switching circuit 120 can receive the voltage level signal FVS according to the display status signal TPSW, and adjust the voltage level of the voltage level with the gate high voltage The bit signal FVS is used as a detection control signal to be provided to the detection signal selection circuit 140. In this way, the display device 100 can prevent the detection signal selection circuit 140 from floating or malfunctioning during the display time interval.

另一方面，當顯示裝置100操作於偵測時間區間時，顯示狀態信號TPSW可以被設定為禁能狀態且偵測狀態信號GOFF可以被設定為致能狀態。並且，此時的電壓準位信號FVS可以具有閘極低電壓的電壓準位。在此情況下，切換電路120可以依據偵測狀態信號GOFF而依序的接收控制信號CS1～CS3，並將控制信號CS1～CS3作為偵測控制信號（亦即，偵測控制信號TCS11～TCS13），以提供至偵測信號選擇電路140。接著，偵測信號選擇電路140可以依據這些偵測控制信號TCS11～TCS13的時序狀態，以將偵測電路160所提供的偵測信號TS傳送至觸控面板150，進而使偵測電路160依據偵測信號TS來對觸控面板150中的各個觸控區域的觸控狀態進行偵測。On the other hand, when the display device 100 operates in the detection time interval, the display state signal TPSW may be set to the disabled state and the detection state signal GOFF may be set to the enabled state. Moreover, the voltage level signal FVS at this time may have a voltage level of the gate low voltage. In this case, the switching circuit 120 can sequentially receive the control signals CS1 ˜ CS3 according to the detection status signal GOFF, and use the control signals CS1 ˜ CS3 as the detection control signals (that is, the detection control signals TCS11 ˜ TCS13) To provide to the detection signal selection circuit 140. Then, the detection signal selection circuit 140 can transmit the detection signal TS provided by the detection circuit 160 to the touch panel 150 according to the timing states of these detection control signals TCS11 to TCS13, and then the detection circuit 160 can detect The detection signal TS is used to detect the touch state of each touch area in the touch panel 150.

值得一提的是，在顯示裝置100操作於偵測時間區間的情況下，切換電路110可以依據偵測狀態信號GOFF而接收電壓準位信號FVS，並將具有閘極高電壓的電壓準位的電壓準位信號FVS作為資料控制信號，以提供至資料信號選擇電路130。藉此，顯示裝置100可以避免資料信號選擇電路130在偵測時間區間時發生浮接或誤動作的情況發生。It is worth mentioning that, when the display device 100 operates in the detection time interval, the switching circuit 110 can receive the voltage level signal FVS according to the detection status signal GOFF, and convert the voltage level of the gate high voltage The voltage level signal FVS is used as a data control signal to provide to the data signal selection circuit 130. In this way, the display device 100 can prevent the data signal selection circuit 130 from floating or malfunctioning during the detection time interval.

依據上述圖1實施例的說明內容可以得知，在本實施例的顯示裝置100的資料信號選擇電路130以及偵測信號選擇電路140中，分別可以透過切換電路110以及切換電路120來共同耦接至相同的控制線CL1～CL3，以接收相同的控制信號CS1～CS3。如此一來，顯示裝置100可以僅透過這些控制信號CS1～CS3即可同時控制資料信號選擇電路130以及偵測信號選擇電路140的操作動作，藉以有效的降低接腳數量以及顯示裝置100整體的成本。According to the above description of the embodiment of FIG. 1, it can be known that the data signal selection circuit 130 and the detection signal selection circuit 140 of the display device 100 of this embodiment can be coupled together through the switching circuit 110 and the switching circuit 120 respectively To the same control lines CL1 to CL3, to receive the same control signals CS1 to CS3. In this way, the display device 100 can simultaneously control the operation of the data signal selection circuit 130 and the detection signal selection circuit 140 through only these control signals CS1 to CS3, thereby effectively reducing the number of pins and the overall cost of the display device 100 .

圖2是依照本發明一實施例的顯示裝置200的電路圖。請參照圖2，顯示裝置200包括切換電路210、切換電路220、資料信號選擇電路230、偵測信號選擇電路240、觸控面板250以及偵測電路260。其中，圖2所示的顯示裝置200、切換電路210、切換電路220、資料信號選擇電路230、偵測信號選擇電路240、觸控面板250以及偵測電路260大致可以相同或相似於圖1所示的顯示裝置100、切換電路110、切換電路120、資料信號選擇電路130、偵測信號選擇電路140、觸控面板150以及偵測電路160，並且相同或相似的元件使用相同或相似的標號。2 is a circuit diagram of a display device 200 according to an embodiment of the invention. 2, the display device 200 includes a switching circuit 210, a switching circuit 220, a data signal selection circuit 230, a detection signal selection circuit 240, a touch panel 250, and a detection circuit 260. Among them, the display device 200, the switching circuit 210, the switching circuit 220, the data signal selection circuit 230, the detection signal selection circuit 240, the touch panel 250, and the detection circuit 260 shown in FIG. 2 may be substantially the same as or similar to those shown in FIG. The display device 100, the switching circuit 110, the switching circuit 120, the data signal selection circuit 130, the detection signal selection circuit 140, the touch panel 150, and the detection circuit 160 are shown, and the same or similar elements use the same or similar reference numbers.

在圖2的顯示裝置200中，切換電路210包括電晶體M11～M16。電晶體M11的第一端接收電壓準位信號FVS，電晶體M11的控制端接收偵測狀態信號GOFF。電晶體M12的第一端接收控制信號CS1，電晶體M12的第二端耦接至電晶體M11的第二端，電晶體M12的控制端接收顯示狀態信號TPSW。電晶體M13的第一端接收電壓準位信號FVS，電晶體M13的控制端接收偵測狀態信號GOFF。電晶體M14的第一端接收控制信號CS2，電晶體M14的第二端耦接至電晶體M13的第二端，電晶體M14的控制端接收顯示狀態信號TPSW。電晶體M15的第一端接收電壓準位信號FVS，電晶體M15的控制端接收偵測狀態信號GOFF。電晶體M16的第一端接收控制信號CS3，電晶體M16的第二端耦接至電晶體M15的第二端，電晶體M16的控制端接收顯示狀態信號TPSW。In the display device 200 of FIG. 2, the switching circuit 210 includes transistors M11 to M16. The first terminal of the transistor M11 receives the voltage level signal FVS, and the control terminal of the transistor M11 receives the detection state signal GOFF. The first end of the transistor M12 receives the control signal CS1, the second end of the transistor M12 is coupled to the second end of the transistor M11, and the control end of the transistor M12 receives the display status signal TPSW. The first terminal of the transistor M13 receives the voltage level signal FVS, and the control terminal of the transistor M13 receives the detection state signal GOFF. The first end of the transistor M14 receives the control signal CS2, the second end of the transistor M14 is coupled to the second end of the transistor M13, and the control end of the transistor M14 receives the display status signal TPSW. The first terminal of the transistor M15 receives the voltage level signal FVS, and the control terminal of the transistor M15 receives the detection state signal GOFF. The first end of the transistor M16 receives the control signal CS3, the second end of the transistor M16 is coupled to the second end of the transistor M15, and the control end of the transistor M16 receives the display status signal TPSW.

切換電路220包括電晶體M21～M26。電晶體M21的第一端接收電壓準位信號FVS，電晶體M21的控制端接收顯示狀態信號TPSW。電晶體M22的第一端接收控制信號CS1，電晶體M22的第二端耦接至晶體M21的第二端，電晶體M22的控制端接收偵測狀態信號GOFF。電晶體M23的第一端接收電壓準位信號FVS，電晶體M23的控制端接收顯示狀態信號TPSW。電晶體M24的第一端接收控制信號CS2，電晶體M24的第二端耦接至電晶體M23的第二端，電晶體M24的控制端接收偵測狀態信號GOFF。電晶體M25的第一端接收電壓準位信號FVS，電晶體M25的控制端接收顯示狀態信號TPSW。電晶體M26的第一端接收控制信號CS3，電晶體M26的第二端耦接至電晶體M25的第二端，電晶體M26的控制端接收偵測狀態信號GOFF。The switching circuit 220 includes transistors M21 to M26. The first terminal of the transistor M21 receives the voltage level signal FVS, and the control terminal of the transistor M21 receives the display status signal TPSW. The first end of the transistor M22 receives the control signal CS1, the second end of the transistor M22 is coupled to the second end of the crystal M21, and the control end of the transistor M22 receives the detection state signal GOFF. The first terminal of the transistor M23 receives the voltage level signal FVS, and the control terminal of the transistor M23 receives the display status signal TPSW. The first end of the transistor M24 receives the control signal CS2, the second end of the transistor M24 is coupled to the second end of the transistor M23, and the control end of the transistor M24 receives the detection state signal GOFF. The first end of the transistor M25 receives the voltage level signal FVS, and the control end of the transistor M25 receives the display status signal TPSW. The first end of the transistor M26 receives the control signal CS3, the second end of the transistor M26 is coupled to the second end of the transistor M25, and the control end of the transistor M26 receives the detection state signal GOFF.

另一方面，資料信號選擇電路230包括電晶體M31～M33。電晶體M31的第一端耦接至觸控面板250，電晶體M31的第二端接收顯示資料DS1，電晶體M31的控制端耦接至電晶體M15、M16的第二端，以接收資料控制信號DCS1。電晶體M32的第一端耦接至觸控面板250，電晶體M32的第二端接收顯示資料DS2，電晶體M32的控制端耦接至電晶體M13、M14的第二端，以接收資料控制信號DCS2。電晶體M33的第一端耦接至觸控面板250，電晶體M33的第二端接收顯示資料DS3，電晶體M33的控制端耦接至電晶體M11、M12的第二端，以接收資料控制信號DCS3。On the other hand, the data signal selection circuit 230 includes transistors M31 to M33. The first end of the transistor M31 is coupled to the touch panel 250, the second end of the transistor M31 receives the display data DS1, and the control end of the transistor M31 is coupled to the second ends of the transistors M15 and M16 to receive data control Signal DCS1. The first end of the transistor M32 is coupled to the touch panel 250, the second end of the transistor M32 receives the display data DS2, and the control end of the transistor M32 is coupled to the second ends of the transistors M13 and M14 to receive data control Signal DCS2. The first end of the transistor M33 is coupled to the touch panel 250, the second end of the transistor M33 receives the display data DS3, and the control end of the transistor M33 is coupled to the second ends of the transistors M11 and M12 to receive data control Signal DCS3.

偵測信號選擇電路240包括電晶體M41～M46。電晶體M41的第一端耦接至偵測電路260，電晶體M41的第二端耦接至觸控面板250，電晶體M41的控制端耦接至電晶體M21、M22的第二端，以接收偵測控制信號TCS11。電晶體M42的第一端耦接至偵測電路260，電晶體M42的第二端耦接至觸控面板250，電晶體M42的控制端耦接至電晶體M23、M24的第二端，以接收偵測控制信號TCS12。電晶體M43的第一端耦接至偵測電路260，電晶體M43的第二端耦接至觸控面板250，電晶體M43的控制端耦接至電晶體M25、M26的第二端，以接收偵測控制信號TCS13。The detection signal selection circuit 240 includes transistors M41-M46. The first end of the transistor M41 is coupled to the detection circuit 260, the second end of the transistor M41 is coupled to the touch panel 250, and the control end of the transistor M41 is coupled to the second ends of the transistors M21, M22 to Receive detection control signal TCS11. The first end of the transistor M42 is coupled to the detection circuit 260, the second end of the transistor M42 is coupled to the touch panel 250, and the control end of the transistor M42 is coupled to the second ends of the transistors M23 and M24 to Receive detection control signal TCS12. The first end of the transistor M43 is coupled to the detection circuit 260, the second end of the transistor M43 is coupled to the touch panel 250, and the control end of the transistor M43 is coupled to the second ends of the transistors M25, M26 to Receive the detection control signal TCS13.

電晶體M44的第一端接收參考電壓VGUARD，電晶體M44的第二端耦接至電晶體M41的第二端，電晶體M44的控制端耦接至反向器INV1的輸出端，且所述反向器INV1的輸入端耦接至電晶體M21、M22的第二端。電晶體M45的第一端接收參考電壓VGUARD，電晶體M45的第二端耦接至電晶體M42的第二端，電晶體M45的控制端耦接至反向器INV2的輸出端，且所述反向器INV2的輸入端耦接至電晶體M23、M24的第二端。電晶體M46的第一端接收參考電壓VGUARD，電晶體M46的第二端耦接至電晶體M43的第二端，電晶體M46的控制端耦接至反向器INV3的輸出端，且所述反向器INV3的輸入端耦接至電晶體M25、M26的第二端。The first terminal of the transistor M44 receives the reference voltage VGUARD, the second terminal of the transistor M44 is coupled to the second terminal of the transistor M41, the control terminal of the transistor M44 is coupled to the output terminal of the inverter INV1, and the The input terminal of the inverter INV1 is coupled to the second terminals of the transistors M21 and M22. The first terminal of the transistor M45 receives the reference voltage VGUARD, the second terminal of the transistor M45 is coupled to the second terminal of the transistor M42, the control terminal of the transistor M45 is coupled to the output terminal of the inverter INV2, and the The input terminal of the inverter INV2 is coupled to the second terminals of the transistors M23 and M24. The first terminal of the transistor M46 receives the reference voltage VGUARD, the second terminal of the transistor M46 is coupled to the second terminal of the transistor M43, the control terminal of the transistor M46 is coupled to the output terminal of the inverter INV3, and the The input terminal of the inverter INV3 is coupled to the second terminals of the transistors M25 and M26.

特別一提的是，在偵測信號選擇電路240中，當電晶體M44～M46為斷開狀態時，偵測信號選擇電路240可以透過接收參考電壓VGUARD的方式，以避免電晶體M44～M46因發生浮接狀態而導致誤動作的情況。In particular, in the detection signal selection circuit 240, when the transistors M44-M46 are in the off state, the detection signal selection circuit 240 can avoid the transistors M44-M46 by receiving the reference voltage VGUARD. Misoperation due to floating state.

圖3是依照本發明一實施例說明圖2所示顯示裝置200的時序圖。關於顯示裝置200的操作細節，請同時參照圖2以及圖3，詳細來說，當顯示裝置200操作於顯示時間區間T1時，顯示狀態信號TPSW可以被設定為致能狀態（例如是高電壓準位）且偵測狀態信號GOFF可以被設定為禁能狀態（例如是低電壓準位）。並且，此時的電壓準位信號FVS可以具有閘極高電壓VGH的電壓準位。在此情況下，切換電路210的電晶體M12、M14、M16可依據顯示狀態信號TPSW而被導通，且這些電晶體M12、M14、M16可依序的接收控制信號CS1～CS3，並將控制信號CS1～CS3作為資料控制信號DCS1～DCS3，以分別提供至資料信號選擇電路230的電晶體M31～M33。FIG. 3 is a timing diagram illustrating the display device 200 shown in FIG. 2 according to an embodiment of the invention. For details of the operation of the display device 200, please refer to FIG. 2 and FIG. 3 at the same time. In detail, when the display device 200 operates in the display time interval T1, the display state signal TPSW can be set to an enabled state (such as a high voltage standard) Bit) and the detection status signal GOFF can be set to the disabled state (eg low voltage level). Moreover, the voltage level signal FVS at this time may have the voltage level of the gate high voltage VGH. In this case, the transistors M12, M14, and M16 of the switching circuit 210 can be turned on according to the display status signal TPSW, and these transistors M12, M14, and M16 can sequentially receive the control signals CS1 to CS3 and convert the control signals CS1 to CS3 are used as data control signals DCS1 to DCS3 to be provided to the transistors M31 to M33 of the data signal selection circuit 230, respectively.

接著，電晶體M31～M33可以依據資料控制信號DCS1～DCS3（或控制信號CS1～CS3）的時序狀態而依序的被導通。並且，資料信號選擇電路230可以依據這些資料控制信號DCS1～DCS3的時序狀態，來依序的提供顯示資料DS1～DS3至觸控面板250，以使觸控面板250依據顯示資料DS1～DS3來顯示畫面。Then, the transistors M31 to M33 can be turned on in sequence according to the timing state of the data control signals DCS1 to DCS3 (or the control signals CS1 to CS3). Moreover, the data signal selection circuit 230 can sequentially provide the display data DS1 to DS3 to the touch panel 250 according to the timing status of the data control signals DCS1 to DCS3, so that the touch panel 250 displays according to the display data DS1 to DS3 Screen.

在此同時，切換電路220的電晶體M21、M23、M25可以依據顯示狀態信號TPSW而被導通，且這些電晶體M21、M23、M25可接收電壓準位信號FVS，以將具有閘極高電壓VGH的電壓準位的電壓準位信號FVS作為偵測控制信號TCS11～TCS13，以提供至偵測信號選擇電路240的電晶體M41～M43。需注意到的是，顯示裝置200可以透過反向器INV1～INV3來分別對偵測控制信號TCS11～TCS13執行反向動作，以對應的提供偵測控制信號TCS14～TCS16至電晶體M44～M46。藉此，顯示裝置200可以避免偵測信號選擇電路240在顯示時間區間T1時發生浮接或誤動作的情況發生。At the same time, the transistors M21, M23, M25 of the switching circuit 220 can be turned on according to the display status signal TPSW, and these transistors M21, M23, M25 can receive the voltage level signal FVS to have the gate high voltage VGH The voltage level signal FVS of the voltage level is used as the detection control signals TCS11 to TCS13 to be supplied to the transistors M41 to M43 of the detection signal selection circuit 240. It should be noted that the display device 200 can perform reverse actions on the detection control signals TCS11-TCS13 through the inverters INV1-INV3, respectively, to provide the detection control signals TCS14-TCS16 to the transistors M44-M46. In this way, the display device 200 can prevent the detection signal selection circuit 240 from floating or malfunctioning during the display time interval T1.

另一方面，當顯示裝置200操作於偵測時間區間T2時，顯示狀態信號TPSW可以被設定為禁能狀態（例如是低電壓準位）且偵測狀態信號GOFF可以被設定為致能狀態（例如是高電壓準位）。並且，此時的電壓準位信號FVS可以具有閘極低電壓VGL的電壓準位。在此情況下，切換電路220的電晶體M22、M24、M26可依據偵測狀態信號GOFF而被導通，且這些電晶體M22、M24、M26可依序的接收控制信號CS1～CS3，並將控制信號CS1～CS3作為偵測控制信號TCS11～TCS13，以分別提供至偵測信號選擇電路240的電晶體M41～M43。並且，顯示裝置200可以透過反向器INV1～INV3來分別依據偵測控制信號TCS11～TCS13以提供偵測控制信號TCS14～TCS16至電晶體M44～M46。On the other hand, when the display device 200 operates in the detection time interval T2, the display state signal TPSW can be set to the disabled state (for example, a low voltage level) and the detection state signal GOFF can be set to the enabled state ( For example, high voltage level). Moreover, the voltage level signal FVS at this time may have the voltage level of the gate low voltage VGL. In this case, the transistors M22, M24, M26 of the switching circuit 220 can be turned on according to the detection status signal GOFF, and these transistors M22, M24, M26 can sequentially receive the control signals CS1~CS3 and control The signals CS1 ˜ CS3 are used as the detection control signals TCS11 ˜ TCS13 to be respectively provided to the transistors M41 ˜ M43 of the detection signal selection circuit 240. Moreover, the display device 200 can provide the detection control signals TCS14 to TCS16 to the transistors M44 to M46 according to the detection control signals TCS11 to TCS13 through the inverters INV1 to INV3, respectively.

接著，偵測信號選擇電路240的電晶體M41～M43可以依據偵測控制信號TCS11～TCS13（或控制信號CS1～CS3）的時序狀態而依序的被導通，並且電晶體M44～M46可以依據偵測控制信號TCS14～TCS16的時序狀態而依序的被斷開。在此情況下，偵測電路260可以將偵測信號TS透過電晶體M41～M43提供至觸控面板250，以使偵測電路260可以依據偵測信號TS來對觸控面板250中的各個觸控區域的觸控狀態進行偵測。Then, the transistors M41-M43 of the detection signal selection circuit 240 can be sequentially turned on according to the timing state of the detection control signals TCS11-TCS13 (or the control signals CS1-CS3), and the transistors M44-M46 can be turned on according to the detection The timing states of the control signals TCS14 to TCS16 are sequentially turned off. In this case, the detection circuit 260 can provide the detection signal TS to the touch panel 250 through the transistors M41 to M43, so that the detection circuit 260 can respond to each touch in the touch panel 250 according to the detection signal TS The touch state of the control area is detected.

在此同時，切換電路210的電晶體M11、M13、M15可以依據偵測狀態信號GOFF而被導通，且這些電晶體M11、M13、M15可接收電壓準位信號FVS，以將具有閘極低電壓VGL的電壓準位的電壓準位信號FVS作為資料控制信號DCS1～DCS3，以提供至資料信號選擇電路230。藉此，顯示裝置200可以避免資料信號選擇電路230在偵測時間區間T2時發生浮接或誤動作的情況發生。At the same time, the transistors M11, M13, M15 of the switching circuit 210 can be turned on according to the detection state signal GOFF, and these transistors M11, M13, M15 can receive the voltage level signal FVS to have a gate low voltage The voltage level signal FVS of the voltage level of VGL is used as the data control signals DCS1 to DCS3 to be provided to the data signal selection circuit 230. In this way, the display device 200 can prevent the data signal selection circuit 230 from floating or malfunctioning when detecting the time interval T2.

圖4是依照本發明另一實施例的顯示裝置400的電路圖。請參照圖4，顯示裝置400包括切換電路410、切換電路420、資料信號選擇電路430、偵測信號選擇電路440、觸控面板450以及偵測電路460。其中，圖4所示的顯示裝置400、切換電路410、切換電路420、資料信號選擇電路430、偵測信號選擇電路440、觸控面板450以及偵測電路460大致可以相同或相似於圖2所示的顯示裝置200、切換電路210、切換電路220、資料信號選擇電路230、偵測信號選擇電路240、觸控面板250以及偵測電路260，並且相同或相似的元件使用相同或相似的標號。不同於圖2實施例的是，在本實施例中，顯示裝置400可不需要透過反向器INV1～INV3來依據偵測控制信號TCS11～TCS13以提供偵測控制信號TCS14～TCS16至偵測信號選擇電路440。換言之，偵測信號選擇電路440可以直接透過外部裝置來接收這些偵測控制信號TCS14～TCS16。其中，圖4所示的顯示裝置400、切換電路410、切換電路420、資料信號選擇電路430、偵測信號選擇電路440、觸控面板450以及偵測電路460可以參照圖2所提及的顯示裝置200、切換電路210、切換電路220、資料信號選擇電路230、偵測信號選擇電路240、觸控面板250以及偵測電路260的相關說明來類推，故不再贅述。FIG. 4 is a circuit diagram of a display device 400 according to another embodiment of the invention. 4, the display device 400 includes a switching circuit 410, a switching circuit 420, a data signal selection circuit 430, a detection signal selection circuit 440, a touch panel 450, and a detection circuit 460. Among them, the display device 400, the switching circuit 410, the switching circuit 420, the data signal selection circuit 430, the detection signal selection circuit 440, the touch panel 450, and the detection circuit 460 shown in FIG. 4 may be substantially the same as or similar to those shown in FIG. The display device 200, the switching circuit 210, the switching circuit 220, the data signal selection circuit 230, the detection signal selection circuit 240, the touch panel 250, and the detection circuit 260 are shown, and the same or similar elements use the same or similar reference numbers. Unlike the embodiment of FIG. 2, in this embodiment, the display device 400 does not need to use the inverters INV1 to INV3 to provide the detection control signals TCS14 to TCS16 to the detection signal selection according to the detection control signals TCS11 to TCS13 Circuit 440. In other words, the detection signal selection circuit 440 can directly receive these detection control signals TCS14 to TCS16 through an external device. The display device 400, the switching circuit 410, the switching circuit 420, the data signal selection circuit 430, the detection signal selection circuit 440, the touch panel 450, and the detection circuit 460 shown in FIG. 4 can refer to the display mentioned in FIG. 2 The relevant descriptions of the device 200, the switching circuit 210, the switching circuit 220, the data signal selection circuit 230, the detection signal selection circuit 240, the touch panel 250, and the detection circuit 260 can be deduced by analogy, so they will not be repeated here.

圖5是依照本發明再一實施例的顯示裝置500的電路圖。請參照圖5，顯示裝置500包括切換電路510、切換電路520、資料信號選擇電路530、偵測信號選擇電路540、觸控面板550以及偵測電路560。其中，圖5所示的顯示裝置500、切換電路510、切換電路520、資料信號選擇電路530、偵測信號選擇電路540、觸控面板550以及偵測電路560大致相同或相似於圖2所示的顯示裝置200、切換電路210、切換電路220、資料信號選擇電路230、偵測信號選擇電路240、觸控面板250以及偵測電路260。並且相同或相似的元件使用相同或相似的標號。不同於圖2實施例的是，在本實施例中，顯示裝置500的切換電路510、520可以不需要接收電壓準位信號FVS。FIG. 5 is a circuit diagram of a display device 500 according to still another embodiment of the present invention. 5, the display device 500 includes a switching circuit 510, a switching circuit 520, a data signal selection circuit 530, a detection signal selection circuit 540, a touch panel 550, and a detection circuit 560. Among them, the display device 500, the switching circuit 510, the switching circuit 520, the data signal selection circuit 530, the detection signal selection circuit 540, the touch panel 550, and the detection circuit 560 shown in FIG. 5 are substantially the same or similar to those shown in FIG. Display device 200, switching circuit 210, switching circuit 220, data signal selection circuit 230, detection signal selection circuit 240, touch panel 250, and detection circuit 260. And the same or similar elements use the same or similar reference numbers. Unlike the embodiment of FIG. 2, in this embodiment, the switching circuits 510 and 520 of the display device 500 may not need to receive the voltage level signal FVS.

具體而言，切換電路510包括電晶體M11～M16。電晶體M11的第一端接收顯示狀態信號TPSW，電晶體M11的控制端接收偵測狀態信號GOFF。電晶體M12的第一端接收控制信號CS1，電晶體M12的第二端耦接至電晶體M11的第二端，電晶體M12的控制端接收顯示狀態信號TPSW。電晶體M13的第一端接收顯示狀態信號TPSW，電晶體M13的控制端接收偵測狀態信號GOFF。電晶體M14的第一端接收控制信號CS2，電晶體M14的第二端耦接至電晶體M13的第二端，電晶體M14的控制端接收顯示狀態信號TPSW。電晶體M15的第一端接收顯示狀態信號TPSW，電晶體M15的控制端接收偵測狀態信號GOFF。電晶體M16的第一端接收控制信號CS3，電晶體M16的第二端耦接至電晶體M15的第二端，電晶體M16的控制端接收顯示狀態信號TPSW。Specifically, the switching circuit 510 includes transistors M11 to M16. The first end of the transistor M11 receives the display status signal TPSW, and the control end of the transistor M11 receives the detection status signal GOFF. The first end of the transistor M12 receives the control signal CS1, the second end of the transistor M12 is coupled to the second end of the transistor M11, and the control end of the transistor M12 receives the display status signal TPSW. The first end of the transistor M13 receives the display status signal TPSW, and the control end of the transistor M13 receives the detection status signal GOFF. The first end of the transistor M14 receives the control signal CS2, the second end of the transistor M14 is coupled to the second end of the transistor M13, and the control end of the transistor M14 receives the display status signal TPSW. The first end of the transistor M15 receives the display status signal TPSW, and the control end of the transistor M15 receives the detection status signal GOFF. The first end of the transistor M16 receives the control signal CS3, the second end of the transistor M16 is coupled to the second end of the transistor M15, and the control end of the transistor M16 receives the display status signal TPSW.

另一方面，切換電路520包括電晶體M21～M26。電晶體M21的第一端與控制端共同接收顯示狀態信號TPSW。電晶體M22的第一端接收控制信號CS1，電晶體M22的第二端耦接至電晶體M21的第二端，電晶體M22的控制端接收偵測狀態信號GOFF。電晶體M23的第一端與控制端共同接收顯示狀態信號TPSW。電晶體M24的第一端接收控制信號CS2，電晶體M24的第二端耦接至電晶體M23的第二端，電晶體M24的控制端接收偵測狀態信號GOFF。電晶體M25的第一端與控制端共同接收顯示狀態信號TPSW。電晶體M26的第一端接收控制信號CS3，電晶體M26的第二端耦接至電晶體M25的第二端，電晶體M26的控制端接收偵測狀態信號GOFF。On the other hand, the switching circuit 520 includes transistors M21 to M26. The first end of the transistor M21 and the control end jointly receive the display status signal TPSW. The first end of the transistor M22 receives the control signal CS1, the second end of the transistor M22 is coupled to the second end of the transistor M21, and the control end of the transistor M22 receives the detection state signal GOFF. The first end of the transistor M23 and the control end jointly receive the display status signal TPSW. The first end of the transistor M24 receives the control signal CS2, the second end of the transistor M24 is coupled to the second end of the transistor M23, and the control end of the transistor M24 receives the detection state signal GOFF. The first end of the transistor M25 and the control end jointly receive the display status signal TPSW. The first end of the transistor M26 receives the control signal CS3, the second end of the transistor M26 is coupled to the second end of the transistor M25, and the control end of the transistor M26 receives the detection state signal GOFF.

圖6是依照本發明再一實施例說明圖5所示顯示裝置500的時序圖。請參照圖5以及圖6，在本實施例中，當顯示裝置500操作於顯示時間區間T1時，切換電路520的電晶體M21、M23、M25可以依據被設定為致能狀態（例如是高電壓準位）的顯示狀態信號TPSW而被導通，且這些電晶體M21、M23、M25可接收顯示狀態信號TPSW，以將具有高電壓準位的顯示狀態信號TPSW作為偵測控制信號TCS11～TCS13，並提供至偵測信號選擇電路540的電晶體M41～M43。並且，顯示裝置500可以透過反向器INV1～INV3來分別對偵測控制信號TCS11～TCS13執行反向動作，以對應的提供偵測控制信號TCS14～TCS16至電晶體M44～M46。藉此，顯示裝置500可以在沒有接收電壓準位信號FVS的情況下，亦可避免偵測信號選擇電路540在顯示時間區間T1時發生浮接或誤動作的情況發生。FIG. 6 is a timing diagram illustrating the display device 500 shown in FIG. 5 according to yet another embodiment of the present invention. 5 and 6, in this embodiment, when the display device 500 operates in the display time interval T1, the transistors M21, M23, M25 of the switching circuit 520 can be set to an enabled state (eg, high voltage) Level) the display status signal TPSW is turned on, and these transistors M21, M23, M25 can receive the display status signal TPSW to use the display status signal TPSW with a high voltage level as the detection control signals TCS11-TCS13, and The transistors M41-M43 provided to the detection signal selection circuit 540. Moreover, the display device 500 can perform reverse operations on the detection control signals TCS11-TCS13 through the inverters INV1~INV3, respectively, to provide the detection control signals TCS14~TCS16 to the transistors M44~M46 accordingly. In this way, the display device 500 can prevent the detection signal selection circuit 540 from floating or malfunctioning during the display time interval T1 without receiving the voltage level signal FVS.

相對的，當顯示裝置500操作於偵測時間區間T2時，切換電路510的電晶體M11、M13、M15可以依據被設定為致能狀態（例如是高電壓準位）的偵測狀態信號GOFF而被導通，且這些電晶體M11、M13、M15可接收顯示狀態信號TPSW，以將具有低電壓準位的顯示狀態信號TPSW作為資料控制信號DCS1～DCS3，並提供至資料信號選擇電路530。藉此，顯示裝置500可以在沒有接收電壓準位信號FVS的情況下，亦可避免資料信號選擇電路530在偵測時間區間T2時發生浮接或誤動作的情況發生。In contrast, when the display device 500 operates in the detection time interval T2, the transistors M11, M13, M15 of the switching circuit 510 can be based on the detection state signal GOFF set to the enabled state (eg, high voltage level) It is turned on, and these transistors M11, M13, M15 can receive the display state signal TPSW to use the display state signal TPSW with a low voltage level as the data control signals DCS1 to DCS3 and provide it to the data signal selection circuit 530. In this way, the display device 500 can prevent the data signal selection circuit 530 from floating or malfunctioning during the detection time interval T2 without receiving the voltage level signal FVS.

需注意到的是，關於在顯示時間區間T1以及偵測時間區間T2中，顯示裝置500的切換電路510、切換電路520、資料信號選擇電路530、偵測信號選擇電路540、觸控面板550以及偵測電路560的操作細節，皆可參照圖1、圖2以及/或是圖4所提及的切換電路、資料信號選擇電路、偵測信號選擇電路、觸控面板以及偵測電路的相關說明來類推，故不再贅述。It should be noted that in the display time interval T1 and the detection time interval T2, the switching circuit 510, the switching circuit 520, the data signal selection circuit 530, the detection signal selection circuit 540, the touch panel 550 and the display device 500 For the operation details of the detection circuit 560, please refer to the related descriptions of the switching circuit, the data signal selection circuit, the detection signal selection circuit, the touch panel and the detection circuit mentioned in FIG. 1, FIG. 2 and/or FIG. By analogy, I won’t go into details.

綜上所述，本發明的顯示裝置的資料信號選擇電路以及偵測信號選擇電路，分別可以透過各自對應的切換電路來共同耦接至相同的控制線，以接收相同的控制信號。如此一來，本發明的顯示裝置可以僅透過這些控制信號即可同時控制所述資料信號選擇電路以及偵測信號選擇電路的操作動作，藉以有效的降低接腳數量以及顯示裝置整體的成本。In summary, the data signal selection circuit and the detection signal selection circuit of the display device of the present invention can be coupled to the same control line through their corresponding switching circuits to receive the same control signal. In this way, the display device of the present invention can simultaneously control the operation of the data signal selection circuit and the detection signal selection circuit through only these control signals, thereby effectively reducing the number of pins and the overall cost of the display device.

雖然本發明已以實施例揭露如上，然其並非用以限定本發明，任何所屬技術領域中具有通常知識者，在不脫離本發明的精神和範圍內，當可作些許的更動與潤飾，故本發明的保護範圍當視後附的申請專利範圍所界定者為準。Although the present invention has been disclosed as above with examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the scope defined in the appended patent application.

100、200、400、500:顯示裝置 110、120、210、220、410、420、510、520:切換電路 130、230、430、530:資料信號選擇電路 140、240、440、540:偵測信號選擇電路 150、250、450、550:觸控面板 160、260、460、560:偵測電路 CL1～CL3:控制線 CS1～CS3:控制信號 DCS1～DCSN:資料控制信號 DS1～DSN:顯示資料 FVS:電壓準位信號 GOFF:偵測狀態信號 INV1～INV3:反向器 M11～M16、M21～M26、M31～M33、M41～M46:電晶體 TPSW:顯示狀態信號 TCS11～TCS1N:偵測控制信號 TS:偵測信號 T1:顯示時間區間 T2:偵測時間區間 VGH:閘極高電壓 VGL:閘極低電壓 VGUARD:參考電壓100, 200, 400, 500: display device 110, 120, 210, 220, 410, 420, 510, 520: switching circuit 130, 230, 430, 530: data signal selection circuit 140, 240, 440, 540: detection signal selection circuit 150, 250, 450, 550: touch panel 160, 260, 460, 560: detection circuit CL1～CL3: control line CS1～CS3: control signal DCS1～DCSN: data control signal DS1～DSN: display data FVS: voltage level signal GOFF: detection status signal INV1～INV3: Inverter M11～M16, M21～M26, M31～M33, M41～M46: transistor TPSW: display status signal TCS11～TCS1N: detection control signal TS: Detect signal T1: display time interval T2: detection time interval VGH: gate high voltage VGL: gate low voltage VGUARD: reference voltage

圖1是依照本發明一實施例的顯示裝置的電路方塊（Circuit Block）示意圖。圖2是依照本發明一實施例的顯示裝置的電路圖。圖3是依照本發明一實施例說明圖2所示顯示裝置的時序圖。圖4是依照本發明另一實施例的顯示裝置的電路圖。圖5是依照本發明再一實施例的顯示裝置的電路圖。圖6是依照本發明再一實施例說明圖5所示顯示裝置的時序圖。 FIG. 1 is a schematic diagram of a circuit block of a display device according to an embodiment of the invention. 2 is a circuit diagram of a display device according to an embodiment of the invention. FIG. 3 is a timing diagram illustrating the display device shown in FIG. 2 according to an embodiment of the invention. 4 is a circuit diagram of a display device according to another embodiment of the invention. 5 is a circuit diagram of a display device according to yet another embodiment of the invention. 6 is a timing diagram illustrating the display device shown in FIG. 5 according to yet another embodiment of the present invention.

100:顯示裝置 100: display device

110、120:切換電路 110, 120: switching circuit

130:資料信號選擇電路 130: data signal selection circuit

140:偵測信號選擇電路 140: detection signal selection circuit

150:觸控面板 150: touch panel

160:偵測電路 160: detection circuit

CL1~CL3:控制線 CL1~CL3: control line

CS1~CS3:控制信號 CS1~CS3: control signal

DCS1~DCSN:資料控制信號 DCS1~DCSN: data control signal

DS1~DSN:顯示資料 DS1~DSN: display data

FVS:電壓準位信號 FVS: voltage level signal

GOFF:偵測狀態信號 GOFF: detection status signal

TPSW:顯示狀態信號 TPSW: display status signal

TCS11~TCS1N:偵測控制信號 TCS11~TCS1N: detection control signal

TS:偵測信號 TS: Detect signal

Claims

A display device, including: A first switching circuit, coupled to a plurality of control lines, to respectively receive a plurality of control signals, and the first switching circuit provides a plurality of data control signals according to a display status signal and a detection status signal; A data signal selection circuit, coupled to the first switching circuit, and in a display time interval, the data signal selection circuit transmits a plurality of display data to a touch panel according to the data control signals; A second switching circuit coupled to the control lines to receive the control signals respectively, the second switching circuit providing a plurality of detection control signals according to the display state signal and the detection state signal; and A detection signal selection circuit is coupled to the second switching circuit, and in a detection time interval, the detection signal selection circuit transmits a detection signal to the touch panel according to the detection control signals.

The display device according to item 1 of the patent application scope, wherein in the display time interval, the first switching circuit makes the control signals as the data control signals according to the display state signal and the detection state signal, and provides The data control signals to the data signal selection circuit, and during the detection time interval, the second switching circuit makes the control signals as the detection control signals according to the display state signal and the detection state signal, and The detection control signals are provided to the detection signal selection circuit.

The display device according to item 1 of the patent application scope, wherein the first switching circuit and the second switching circuit receive a voltage level signal having a gate high voltage or a gate low voltage, wherein, During the display time interval, the second switching circuit uses the voltage level signal with the gate high voltage as the detection control signals according to the display state signal and the detection state signal, and provides the detection control Signal to the detection signal selection circuit, and During the detection time interval, the first switching circuit makes the voltage level signal having the gate low voltage as the data control signals according to the display state signal and the detection state signal, and provides the data control signals To the data signal selection circuit.

The display device as described in item 1 of the patent application scope, wherein the display device further comprises: A detection circuit is coupled to the detection signal selection circuit, and during the detection time interval, the detection circuit generates the detection signal and transmits it to the touch panel through the detection signal selection circuit.

The display device according to item 1 of the patent application scope, wherein in the display time interval, the display state signal is set to the enabled state and the detection state signal is set to the disabled state, and during the detection time interval , The display status signal is set to the disabled state and the detection status signal is set to the enabled state.

The display device according to item 1 of the patent application scope, wherein the control signals include a first control signal, a second control signal, and a third control signal, wherein the first switching circuit includes: A first transistor, the first end of which receives the display status signal, and the control end of which receives the detection status signal; A second transistor whose first end receives the first control signal, whose second end is coupled to the second end of the first transistor, and whose control end receives the display status signal; A third transistor, the first end of which receives the display status signal, and the control end of which receives the detection status signal; A fourth transistor whose first end receives the second control signal, whose second end is coupled to the second end of the third transistor, and whose control end receives the display status signal; A fifth transistor, the first end of which receives the display status signal, and the control end of which receives the detection status signal; and A sixth transistor has a first terminal receiving the third control signal, a second terminal coupled to the second terminal of the fifth transistor, and a control terminal receiving the display status signal.

The display device according to item 6 of the patent application scope, wherein the second switching circuit includes: A seventh transistor, the first terminal and the control terminal jointly receive the display status signal; An eighth transistor whose first end receives the first control signal, whose second end is coupled to the second end of the seventh transistor, and whose control end receives the detection status signal; A ninth transistor, the first end and the control end jointly receive the display status signal; A tenth transistor, the first end of which receives the second control signal, the second end of which is coupled to the second end of the ninth transistor, and the control end of which receives the detection status signal; An eleventh transistor, the first end and the control end of which jointly receive the display status signal; and In a twelfth transistor, the first terminal receives the third control signal, the second terminal is coupled to the second terminal of the eleventh transistor, and the control terminal receives the detection status signal.

The display device according to item 3 of the patent application scope, wherein the control signals include a first control signal, a second control signal, and a third control signal, wherein the first switching circuit includes: A first transistor, the first end of which receives the voltage level signal, and the control end of which receives the detection status signal; A second transistor whose first end receives the first control signal, whose second end is coupled to the second end of the first transistor, and whose control end receives the display status signal; A third transistor, the first terminal receives the voltage level signal, and the control terminal receives the detection status signal; A fourth transistor whose first end receives the second control signal, whose second end is coupled to the second end of the third transistor, and whose control end receives the display status signal; A fifth transistor whose first terminal receives the voltage level signal and whose control terminal receives the detection status signal; and A sixth transistor has a first terminal receiving the third control signal, a second terminal coupled to the second terminal of the fifth transistor, and a control terminal receiving the display status signal.

The display device according to item 8 of the patent application scope, wherein the second switching circuit includes: A seventh transistor, the first terminal receives the voltage level signal, and the control terminal receives the display status signal; An eighth transistor whose first end receives the first control signal, whose second end is coupled to the second end of the seventh transistor, and whose control end receives the detection status signal; A ninth transistor, the first terminal receives the voltage level signal, and the control terminal receives the display status signal; A tenth transistor, the first end of which receives the second control signal, the second end of which is coupled to the second end of the ninth transistor, and the control end of which receives the detection status signal; An eleventh transistor whose first terminal receives the voltage level signal and whose control terminal receives the display status signal; and In a twelfth transistor, the first terminal receives the third control signal, the second terminal is coupled to the second terminal of the eleventh transistor, and the control terminal receives the detection status signal.

The display device according to Item 1 of the patent application scope, wherein the display data includes a first display data, a second display data, and a third display data, wherein the data signal selection circuit includes: A first transistor whose first end is coupled to the touch panel, whose second end receives the first display data, and whose control end is coupled to the first switching circuit; A second transistor whose first end is coupled to the touch panel, whose second end receives the second display data, and whose control end is coupled to the first switching circuit; and A third transistor has a first end coupled to the touch panel, a second end receiving the third display data, and a control end coupled to the first switching circuit.

The display device as described in item 4 of the patent application scope, wherein the detection signal selection circuit includes: A first transistor, the first end of which is coupled to the detection circuit, the second end of which is coupled to the touch panel, and the control end of which is coupled to the second switching circuit; A second transistor, the first end of which is coupled to the detection circuit, the second end of which is coupled to the touch panel, and the control end of which is coupled to the second switching circuit; A third transistor, the first end of which is coupled to the detection circuit, the second end of which is coupled to the touch panel, and the control end of which is coupled to the second switching circuit; A fourth transistor whose first end receives a reference voltage, whose second end is coupled to the second end of the first transistor, and whose control end is coupled to the second switching circuit; A fifth transistor whose first end receives the reference voltage, whose second end is coupled to the second end of the second transistor, and whose control end is coupled to the second switching circuit; and A sixth transistor has a first terminal receiving the reference voltage, a second terminal coupled to the second terminal of the third transistor, and a control terminal coupled to the second switching circuit.