TW202008134A - Capacitive touchscreen and the driving method thereof - Google Patents
Capacitive touchscreen and the driving method thereof Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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Abstract
Description
本發明有關於一種觸控裝置及其驅動方法;特別是有關於一種電容式觸控顯示裝置以及其驅動方法。 The invention relates to a touch device and a driving method thereof; in particular, to a capacitive touch display device and a driving method thereof.
在現有顯示科技的發展中,將發光二極體(Light Emitting Diode,LED)微小化的微型發光二極體(Micro LED)已經成為平面顯示技術中的主要發展題目之一。微型發光二極體不同於有機發光二極體,係由無機發光二極體為出發點而研發出的技術,其繼承了無機發光二極體的高效率、高亮度、高可靠度、高速反應時間等特點,同時也是不須額外背光光源的自發光顯示技術,在節省能量、縮小體積及厚度等特色上都有所幫助。 In the development of the existing display technology, the miniature light emitting diode (Micro LED) which has made the light emitting diode (Light Emitting Diode, LED) miniaturized has become one of the main development topics in the flat display technology. The miniature light-emitting diode is different from the organic light-emitting diode. It is a technology developed from the point of view of the inorganic light-emitting diode. It inherits the high efficiency, high brightness, high reliability, and high-speed response time of the inorganic light-emitting diode. Other features, such as self-luminous display technology without additional backlight, are helpful in saving energy, reducing volume and thickness.
儘管屬與自發光顯示技術的微型發光二極體顯示裝置可以省略背光模組的厚度,但是當此顯示裝置要結合例如是觸控功能的輸入技術時,則仍難免需要額外的觸控模組附加。具有觸控功能的高解析度輕薄平面顯示器一直是現在的顯示技術一直致力於發展的目標,如何製作一個可以減少體積及厚度的顯示裝置仍是目前致力於發展的課題之一。 Although the thickness of the backlight module can be omitted for the miniature light-emitting diode display device belonging to the self-luminous display technology, when this display device is to incorporate an input technology such as a touch function, it is inevitable that an additional touch module is required Attached. High-resolution thin and light flat-panel displays with touch function have always been the development goals of current display technology, and how to make a display device that can reduce the volume and thickness is still one of the topics that are currently committed to development.
本發明提出一種整合電容式觸控顯示裝置及其驅動方法,其可以降低因觸控功能所需的厚度以及電路複雜程度。 The invention provides an integrated capacitive touch display device and a driving method thereof, which can reduce the thickness and circuit complexity required for the touch function.
本發明的電容觸控顯示裝置包括光源驅動疊層、至少一光源以及網印疊層,光源配置於光源驅動疊層上,而網印疊層再印刷於光源以及光源驅動疊層上。光源驅動疊層包括至少一光源開關、第一電源以及連接光源開關的閘極的資料線路。光源開關以及光源串聯在第一電源以及第二電源之間。網印疊層包括鄰近電容觸控顯示裝置的觸控表面的延伸導電層,其電性連接至第一電源或第二電源,位於觸控表面以及光源驅動疊層之間。第一電源、第二電源或資料線路輸出至少一觸控訊號來感測使用者接觸觸控表面的位置。 The capacitive touch display device of the present invention includes a light source driving stack, at least one light source and a screen printing stack. The light source is disposed on the light source driving stack, and the screen printing stack is printed on the light source and the light source driving stack. The light source driving stack includes at least one light source switch, a first power source, and a data line connected to the gate of the light source switch. The light source switch and the light source are connected in series between the first power source and the second power source. The screen printing stack includes an extended conductive layer adjacent to the touch surface of the capacitive touch display device, which is electrically connected to the first power supply or the second power supply, and is located between the touch surface and the light source driving stack. The first power source, the second power source, or the data line output at least one touch signal to sense the position where the user touches the touch surface.
本發明驅動上述電容式觸控顯示裝置的方法,包括:於一顯示模式下,第一電源以及第二電源提供電力驅動光源,資料線路輸出訊號控制光源開關;以及於一觸控模式下,第一電源、第二電源或資料線路輸出觸控訊號來感測使用者接觸觸控表面的位置。 The method for driving the capacitive touch display device of the present invention includes: in a display mode, the first power supply and the second power supply provide power to drive the light source, the data line output signal controls the light source switch; and in a touch mode, the first A power supply, a second power supply, or a data line output touch signals to sense the position of the user touching the touch surface.
C1‧‧‧電容 C1‧‧‧Capacitance
114‧‧‧遮光層 114‧‧‧ shading layer
D1、D2‧‧‧汲極 D1, D2‧‧‧ji
115‧‧‧緩衝層 115‧‧‧Buffer layer
Data1~Data3‧‧‧資料線路 Data1~Data3‧‧‧Data line
116、117‧‧‧半導體層 116, 117‧‧‧ semiconductor layer
DS‧‧‧觸控表面 DS‧‧‧Touch surface
118‧‧‧閘極絕緣層 118‧‧‧Gate insulation
G1、G2‧‧‧閘極 G1, G2 ‧‧‧ gate
119‧‧‧介電層 119‧‧‧dielectric layer
Gate1~Gate3‧‧‧閘極線路 Gate1~Gate3‧‧‧Gate line
1110‧‧‧導電層 1110‧‧‧conductive layer
S1、S2‧‧‧源極 S1, S2‧‧‧Source
1111‧‧‧平坦層 1111‧‧‧flat layer
SW1‧‧‧光源開關 SW1‧‧‧Light source switch
120‧‧‧光源 120‧‧‧Light source
SW2‧‧‧資料開關 SW2‧‧‧Data switch
122、124‧‧‧接點 122, 124‧‧‧ contact
TS1、TS2‧‧‧觸控訊號 TS1, TS2‧‧‧‧touch signal
130‧‧‧網印疊層 130‧‧‧ Screen printing stack
Vdd1~Vdd3‧‧‧第一電源 Vdd1~Vdd3‧‧‧First power supply
131‧‧‧延伸導電層 131‧‧‧Extended conductive layer
Vss1Vss3‧‧‧第二電源 Vss1Vss3‧‧‧second power supply
132‧‧‧透光填充層 132‧‧‧Transparent filling layer
50‧‧‧接觸點 50‧‧‧Contact
100、200、300‧‧‧電容觸控顯示裝置 100, 200, 300 ‧‧‧ capacitive touch display device
110‧‧‧光源驅動疊層 110‧‧‧Layer driven stack
111‧‧‧基板 111‧‧‧ substrate
112A、112B‧‧‧畫素電路 112A, 112B ‧‧‧ pixel circuit
113‧‧‧導電層 113‧‧‧conductive layer
圖1A是本發明第一實施例的電容觸控顯示裝置的剖面示意圖;圖1B是對應至圖1A的電路示意圖;圖2A是本發明第二實施例的電容觸控顯示裝置的電路示意圖;圖2B是本發明第二實施例的電容觸控顯示裝置的訊號示意圖; 圖3A是本發明第三實施例的電容觸控顯示裝置的電路示意圖;圖3B是本發明第三實施例的電容觸控顯示裝置的訊號示意圖。 1A is a schematic cross-sectional view of a capacitive touch display device according to a first embodiment of the invention; FIG. 1B is a schematic circuit diagram corresponding to FIG. 1A; FIG. 2A is a schematic circuit diagram of a capacitive touch display device according to a second embodiment of the invention; 2B is a signal schematic diagram of a capacitive touch display device according to a second embodiment of the invention; FIG. 3A is a circuit schematic diagram of a capacitive touch display device according to a third embodiment of the invention; FIG. 3B is a capacitive touch display device according to a third embodiment of the invention Signal diagram of the display device.
本發明所提出的電容觸控顯示裝置應用例如是無機的發光二極體(Light Emitting Diode,LED)等半導體光源的自體發光技術的顯示裝置,較佳為應用微型發光二極體(Micro LED)等自體發光技術的顯示裝置。本發明的電容觸控顯示裝置及其方法除了可以藉由上述的技術顯示高亮度、高解析度的畫面外,觸控功能所需的電極可以整合於顯示裝置中,可以在沒有大幅增加整體厚度的前提下提供觸控功能。 The capacitive touch display device proposed by the present invention is applied to display devices such as inorganic light emitting diodes (Light Emitting Diode, LED) and other self-luminous technology of semiconductor light sources, preferably using micro LEDs (Micro LED ) And other self-luminous technology display devices. The capacitive touch display device and method of the present invention can display high-brightness and high-resolution images by the above-mentioned technology, and the electrodes required for the touch function can be integrated into the display device, without significantly increasing the overall thickness Provide touch function under the premise of.
圖1A是本發明第一實施例的電容觸控顯示裝置的剖面示意圖,其中為了清楚說明此處特別繪示本實施例的電容觸控顯示裝置100中作為像素或子像素的光源及其相關的元件的剖面示意圖。換句話說,本發明的電容觸控顯示裝置100是由多個作為像素或子像素的光源120配合其所連接的光源開關SW1來選擇性發光並組成顯示畫面,而以下將詳細說明每個光源及其相關的元件來說明本發明所提出的技術特徵。 FIG. 1A is a schematic cross-sectional view of a capacitive touch display device according to a first embodiment of the present invention. For the sake of clear description, the capacitive
請參照圖1A,在本發明的第一實施例中,電容觸控顯示裝置100包括光源驅動疊層110、光源120以及網印疊層130。具體而言,光源120較佳為Micro LED,由於Micro LED底層的驅動電路可以以薄膜電晶體(Thin Film Transistor,TFT)、金屬氧化半導體場效電晶體(Metal-Oxide-Semiconductor Filed-Effect Transistor,MOSFET)、LTPS(Low Temperature Poly-silicon)或其他適用于開關功能的裝置,因此本實施例的電容觸控顯示裝置100的光源驅動疊層110可以是經由黃光製程製作,然而本 發明並不限於光源驅動疊層110的製作方法。 1A, in the first embodiment of the present invention, the capacitive
圖1B是圖1A的電路示意圖。請一併參照圖1B,本實施例的光源驅動疊層110包括光源開關SW1、第一電源Vdd1以及第二電源Vss1,光源開關SW1例如是電晶體,較佳為薄膜電晶體(Thin-Film Transistor,TFT),在本發明其他實施例中更可以是金氧半場效半導體(Metal-Oxide-Semiconductor Field-Effect Transistor)、n通道金氧半場效電晶體(n-channel MOSFET,NMOS)、LTPS,本發明不限於電晶體的種類。光源120配置於光源驅動疊層110上,且光源120與光源開關SW1串聯於第一電源Vdd1與第二電源Vss1之間。光源驅動疊層110還包括資料線路Data1,光源開關SW1的閘極G1可以接受來自資料線路Data1的訊號。 FIG. 1B is a schematic circuit diagram of FIG. 1A. 1B, the light
在本實施例中,第一電源Vdd1例如是作為電力輸入的線路,第二電源Vss1例如是作為接地的線路。光源開關SW1可以控制光源120是否自第一電源Vdd1接受電力訊號,而資料線路Data1的訊號控制光源開關SW1。 In the present embodiment, the first power supply Vdd1 is, for example, a line to which power is input, and the second power supply Vss1 is, for example, a line to be grounded. The light source switch SW1 can control whether the
請參照圖1A,網印疊層130印刷於光源120以及光源驅動疊層110上,且網印疊層130包括延伸導電層131。延伸導電層131電性連接至上述提供電力訊號的第一電源Vdd1或第二電源Vss1。舉例而言,本實施例的延伸導電層131例如連接至光源120和光源開關SW1之間,亦即連接至第一電源Vdd1,且延伸導電層131鄰近電容觸控顯示裝置100的觸控表面DS(亦即遠離電容觸控顯示裝置100的基板111的一面)。 Referring to FIG. 1A, the
當使用者接觸觸控表面DS的接觸點50時,延伸導電層131可以更有效的讓使用者在接觸點50產生的電容耦合效應(Capacitive Coupling Effect)影響在第一電源Vdd1或第二電源Vss1的電容變化。具體而言,本實施例的電容觸控顯示裝置100可以以顯示模式或觸控模式驅動。 When the user touches the
在顯示模式下,第一電源Vdd1、第二電源Vss1之間傳遞的電力可以驅動光源120,再搭配來自資料線路Data1的訊號的切換來發出一像素或子像素所需的光,進而組成一顯示畫面;在觸控模式下,第一電源Vdd1、第二電源Vss1或資料線路Data1則用以傳遞一觸控訊號來感測使用者接觸觸控表面DS的位置(例如接觸點50)。 In the display mode, the power transmitted between the first power supply Vdd1 and the second power supply Vss1 can drive the
請再參照圖1B,由於第一電源Vdd1和第二電源Vss1的延伸方向垂直於資料線路Data1的延伸方向,因此不論是以自容式(Self Capacitance)觸控或互容式(Mutual Capacitance)觸控,第一電源Vdd1、第二電源Vss1和資料線路Data1都可以作為適當的觸控電極,且延伸導電層131還可以進一步提昇觸控訊號的偵測靈敏度。 1B, since the extending direction of the first power supply Vdd1 and the second power supply Vss1 is perpendicular to the extending direction of the data line Data1, whether it is a self-capacitance (Self Capacitance) touch or a mutual capacitance (Mutual Capacitance) touch The first power supply Vdd1, the second power supply Vss1 and the data line Data1 can all be used as appropriate touch electrodes, and the extended
由於本實施例的電容觸控顯示裝置100具有上述的觸控模式及顯示模式,可以提供具有觸控功能的顯示畫面。同時,觸控模式下所需的感測電極與顯示模式下所需的電極彼此整合,可以降低電路上的複雜度以及整體的厚度,進而提供更輕薄的體積。以下將進一步說明本發明實施例所提出的其他元件及其所提供的功效。 Since the capacitive
請參照圖1A,在本實施例中,電容觸控顯示裝置100的網印疊層130還包括透光填充層132,透光填充層132例如是由透明的材料形成,較佳為藉由網印形成的透光填充層132。透光填充層132可以在光源驅動疊層110以及光源120上填充斷差,藉以填補光源120在光源驅動疊層110上形成的高度落差,並提供一個平面形成延伸導電層131。 Please refer to FIG. 1A. In this embodiment, the
延伸導電層131為透光電極,較佳為透明電極,其材質可以例如是ITO、PEDOT、CNT等透明導電膜或奈米銀等透明金屬導電材料。延伸導電層131與透明填充層132都可以藉由網版印刷形成於光源驅動疊層110,其中延伸導電層131較佳經由高精度網版印刷以精密度落在例如是10至30微米(micro meter,μm)的製作方式形成高精密度的觸控電極形狀,藉以提昇電容觸控的感測靈敏度。 The extended
本實施例的電容觸控顯示裝置100還包括畫素電路112A、112B,光源120透過畫素電路112A連接至形成源極S1的導電層113來接收電力訊號。詳細而言,畫素電路112A在光源驅動疊層110上作為接點供光源120的接點124連接,畫素電路112B可以延伸至連接到上述第二電源Vss1的導電層(未繪示),並作為接點供光源120的接點122連接,藉以提供光源120一個連接介面。 The capacitive
請再參照圖1A,詳細而言,本實施例的光源驅動疊層110例如是由七道黃光製程完成,光源驅動疊層110包括遮光層114、遮光層114上的緩衝層115、材料例如為多晶矽的半導體層116、117、閘極絕緣層118、導電層113、介電層119、導電層1110、以及平坦層1111。上述這些元件可以經由黃光製程完成,接著利用例如是基板間的轉移方法(Transfer-bonding)將例如為Micro LED的光源120連接在光源驅動疊層上。由於Micro LED 120可以經由無機材料完成,具有耐高溫的特性,因此上述的網印疊層130才可以進一步網印於光源驅動疊層110以及光源120上方。 Please refer to FIG. 1A again. In detail, the light
另一方面,請一併參照圖1B,本實施例的半導體疊層110還包括資料開關SW2,資料線路Data1輸出訊號至資料開關SW2的汲極D2,資 料開關SW2的源極S2與光源開關SW1的閘極G1連接。半導體疊層110還包括閘極線路Gate1,資料開關SW2的閘極G2與閘極線路Gate1連接,且半導體疊層110還包括電容C1,用以維持光源120的電位差。換句話說,本實施例的光源120係以2T1C的電路驅動,且其中資料線路Data1、第一電源Vss1以及第二電源Vdd1還可以作為電容式觸控的感應電極。以下將進一步依據上述的電路及元件設計說明本發明所提出的驅動方式在不同實施例中的實施方式。 On the other hand, please refer to FIG. 1B together. The
請參照圖2A,在本發明的第二實施例中,電容觸控顯示裝置200類似於上述的電容觸控顯示裝置100,並在觸控模式下例如是由多條第一電源Vdd2以及第二電源Vss2輸出觸控訊號,並藉由多條資料線Data2接收訊號,亦即藉由測量第一電源Vdd2和資料線Data2之間的互電容變化來感測使用者接觸電容觸控顯示裝置200的觸控表面的位置(本發明並不限於第一電源和資料線或第二電源和資料線之間的互電容感應,本實施例以第一電源和資料線的互電容感應為例)。 2A, in the second embodiment of the present invention, the capacitive
請一併參照圖2B所繪示的對應至圖2A的訊號示意圖,其中Gate2n至Gate2n+2是電容觸控顯示裝置200依序在每個閘極線路Gate2輸出的閘極訊號,Data2n為資料線路Data2輸出的訊號,Vdd2n為第一電源Vdd2輸出的訊號,Vss2n為第二電源Vss2輸出的訊號。 Please also refer to the signal schematic diagram corresponding to FIG. 2A shown in FIG. 2B, where Gate2n to Gate2n+2 are the gate signals output by the capacitive
在顯示階段Display 1時,資料線路Data2依序依照這些閘極線路Gate2所開啟的像素輸出資料訊號以顯示畫面;在觸控階段Touch 1時,第一電源Vdd2以及第二電源Vss2輸出觸控訊號TS1來感測使用者接觸觸控表面的位置; 其中觸控訊號TS1為交流訊號,且第一電源Vdd2以及第二電源Vss2的震盪頻率彼此同步。因此,當電容觸控顯示裝置200在觸控階段時,不但可以感測使用者接觸觸控表面的位置,還可以避免因觸控信號TS1所產生的畫面閃爍。 In the
本發明並不限於上述藉由感測互電容變化的觸控感測方式,在其他實施例中,上述的電容觸控顯示裝置200亦可以在由第一電源Vdd2、第二電源Vss2輸出觸控訊號TS1時,藉由感測第一電源Vdd2或第二電源Vss2的電容變化所造成的電訊號,以及感測資料線路Data2的電容變化所造成的電訊號來感測使用者接觸電容觸控顯示裝置200的觸控表面的位置。換句話說,本發明所提出的驅動方式在觸控模式下亦可以由第一電源Vdd2以及第二電源Vss2同步輸出觸控訊號,並藉由自電容觸控感測方式感應使用者接觸電容觸控顯示裝置200的觸控表面的位置。 The present invention is not limited to the above-mentioned touch sensing method by sensing mutual capacitance changes. In other embodiments, the above capacitive
另一方面,在顯示裝置200的可視區之外,第一電源Vdd2、第二電源Vss2以及資料線路Data2還可以是以成束的多條走線(Cluster trace)各自延伸至各個顯示像素,因此在觸控階段可以同時以多條第一電源Vdd2、第二電源Vss2或資料線路Data2感測電容變化並調整觸控的解析度。 On the other hand, outside the viewable area of the
請參照圖3A,在本發明的第三實施例中,電容觸控顯示裝置300類似於上述的電容觸控顯示裝置100,並在觸控模式下例如是由多條資料線Data3輸出觸控訊號,並藉由多條第一電源Vdd3或第二電源Vss3接收訊號,亦即藉由測量第一電源Vdd3和資料線Data3之間的互電容變化來感測使用者接觸電容觸控顯示裝置300的觸控表面的位置(本發明並不限於第一 電源和資料線或第二電源和資料線之間的互電容感應,本實施例以第一電源和資料線的互電容感應為例)。 3A, in the third embodiment of the present invention, the capacitive
請一併參照圖3B所繪示的對應至圖3A的訊號示意圖,其中Gate3n至Gate3n+2是電容觸控顯示裝置300依序在每個閘極線路Gate3輸出的閘極訊號,Data3n為資料線路Data3輸出的訊號,Vdd3n為第一電源Vdd3輸出的訊號,Vss3n為第二電源Vss3輸出的訊號。 Please also refer to the signal schematic diagram corresponding to FIG. 3A shown in FIG. 3B, where Gate3n to Gate3n+2 are the gate signals output by the capacitive
在顯示階段Display 2時,資料線路Data3依序依照這些閘極線路Gate3所開啟的像素輸出資料訊號以顯示畫面;在觸控階段Touch 2時,資料線路Data3輸出觸控訊號TS2來感測使用者接觸觸控表面的位置;其中觸控訊號TS2為交流訊號。因此,當電容觸控顯示裝置200在觸控階段時,可以藉由資料線路Data3所輸出的觸控訊號TS2感測使用者的接觸位置。 In the
本發明並不限於上述藉由感測互電容變化的觸控感測方式,在其他實施例中,上述的電容觸控顯示裝置300亦可以在由資料線路Data3輸出觸控訊號TS2時,藉由感測第一電源Vdd3或第二電源Vss3的電容變化所造成的電訊號,以及感測資料線路Data3的電容變化所造成的電訊號來感測使用者接觸電容觸控顯示裝置300的觸控表面的位置。換句話說,本發明所提出的驅動方式在觸控模式下亦可以由資料線路Data3輸出觸控訊號,並藉由自電容觸控感測方式感應使用者接觸電容觸控顯示裝置300的觸控表面的位置。 The present invention is not limited to the above-mentioned touch sensing method by sensing mutual capacitance changes. In other embodiments, the above capacitive
綜上所述,本發明所提出的電容觸控顯示裝置可以以不同的模式驅動,在顯示模式以及觸控模式之間的切換下提供具有觸控功能的顯 示畫面。同時,由於本發明所提出的電容觸控顯示裝置可以將觸控功能所需的電路整合於驅動每個像素的光源的光源驅動疊層中,可以降低整體的電路複雜度、體積、以及厚度,提供一個輕薄的觸控顯示裝置。 In summary, the capacitive touch display device proposed by the present invention can be driven in different modes, and provides a display screen with a touch function under the switching between the display mode and the touch mode. At the same time, since the capacitive touch display device proposed by the present invention can integrate the circuits required for the touch function into the light source driving stack for driving the light source of each pixel, the overall circuit complexity, volume, and thickness can be reduced. Provide a thin and light touch display device.
SW1‧‧‧光源開關 SW1‧‧‧Light source switch
SW2‧‧‧資料開關 SW2‧‧‧Data switch
50‧‧‧接觸點 50‧‧‧Contact
100‧‧‧電容觸控顯示裝置 100‧‧‧Capacitive touch display device
110‧‧‧光源驅動疊層 110‧‧‧Layer driven stack
111‧‧‧基板 111‧‧‧ substrate
112A、112B‧‧‧畫素電路 112A, 112B ‧‧‧ pixel circuit
113‧‧‧導電層 113‧‧‧conductive layer
114‧‧‧遮光層 114‧‧‧ shading layer
115‧‧‧緩衝層 115‧‧‧Buffer layer
116、117‧‧‧半導體層 116, 117‧‧‧ semiconductor layer
118‧‧‧閘極絕緣層 118‧‧‧Gate insulation
119‧‧‧介電層 119‧‧‧dielectric layer
1110‧‧‧導電層 1110‧‧‧conductive layer
1111‧‧‧平坦層 1111‧‧‧flat layer
120‧‧‧光源 120‧‧‧Light source
122、124‧‧‧接點 122, 124‧‧‧ contact
130‧‧‧網印疊層 130‧‧‧ Screen printing stack
131‧‧‧延伸導電層 131‧‧‧Extended conductive layer
132‧‧‧透光填充層 132‧‧‧Transparent filling layer
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