201117080 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種觸控式顯示面板、觸控式顯示裝置 及觸控式顯示面板之控制方法。 【·先前技術】 隨著科技不斷的進步，使得各種資訊設備不斷地推陳 出新。其中，以資料輸入設備而言，除了一般以鍵盤或滑 鼠輸入資料之外，利用觸控式技術來輸入資料也是另一種 輸入方式的選擇。由於人除了具有視覺及聽覺之外，尚具 有觸覺，而隨著感測器技術不斷的更新突破，使得觸控式 技術成了人與資訊設備溝通的另一選擇。 另一方面，傳統的電腦輸入介面（例如鍵盤或滑鼠） 對於不熟悉電腦者來說，於操作上存在一定的困難度，而 造成電腦普及化的障礙之一。為了能夠提供更直覺式的操 作設備，近來業者及積極的發展觸控式顯示面板（touched display panel)。觸控式顯示面板具有人性化的輸入介面特 性，使得任何年齡層的使用者可直接以手指或觸控筆輸入 資料，或選取觸控式顯示面板上的功能選項。 習知的一種觸控式顯示面板，是於顯示面板外設置一 層觸控薄膜（outer touch film )，以感測觸碰位置。然而此 種作法將會增加顯示面板厚度及材料成本，且會降低顯示 亮度。 近來，業者發展出一種内建式（In cell)的觸控式顯 201117080 =面板’其係利用以薄膜電晶體製程製作於面板内之觸控 單π的電日日體來感測受觸碰的位置’其原理是將該電晶體 =料源極或汲極電性連接，當電晶體在受光照射及 ^照射的情況下’會產生不同的訊號，因此後端的控 制早兀可以得知使用者觸碰的位置。 a ^ 'Λ：…邛刀的觸控式顯示面板操作於環境光源充足的 用者藉由光筆進行觸控時’由於環境光源與 置的^ ΓίΓ體所產生的訊號大約相同，因而造成觸碰位 分的難式㈣面㈣作於環境光 斤,_ _ 田吏用者以手指觸碰觸控式顯示面板 γ由於_光源微弱’因♦而造成觸碰位置的錯誤判斷。 ’如何提供—種在環境光源充足的環境中，以及 f壞兄光源微弱的環境中，均可正常作動之難柄示面 1觸控式顯示裝置及其控制方法，實屬當前重要課題之 【發明内容】 有鐘I於上述課題，本發 桊月之目的為楗供—種依據環 光源而邊擇钿作模式電路 F詈以S ㈣控式顯不面板、觸控式顯 、、及觸控式㈤面板之㈣方法。 得勺”目的，本發明提供-種觸控式顯示面板， 係包含一觸控單元、一读 低 _ 5貝取早兀、一光感測單元以及一 其中，讀取單元與觸控單元電性連接。光 "早7^選―環境光源輸出—亮度感測訊號。模式選擇 201117080 元具有一第一模式電路及一第二模式電路，並與觸控單 元、讀取單元以及光感測單元電性連接。模式選擇單元依 據亮度感測訊號而啟動第一模式電路或第二模式電路，俾 使讀取單元輸出一感應輸出值。 為達上述目的，本發明提供一種觸控式顯示面板之控 制方法，觸控式顯示面板具有一觸控單元、一讀取單元、 一光感測單元以及一模式選擇單元。讀取單元與觸控單元 電性連接。模式選擇單元具有一第一模式電路以及一第二 模式電路，並與觸控單元、讀取單元以及光感測單元電性 連接。觸控式顯示面板之控制方法包含以下步驟：由光感 測單元依據一環境光源輸出一亮度感測訊號；由模式選擇 單元依據亮度感測訊號而啟動第一模式電路或第二模式 電路模式；以及由讀取單元輸出一感應輸出值。 為達上述目的，本發明提供一種觸控式顯示裝置，其 係包含一觸控式顯示面板。觸控式顯示面板具有一觸控單 元、一讀取單元、一光感測單元以及一模式選擇單元。其 中，讀取單元與觸控單元電性連接。光感測單元依據一環 境光源輸出一亮度感測訊號。模式選擇單元具有一第一模 式電路及一第二模式電路，並與觸控單元、讀取單元以及 光感測單元電性連接。模式選擇單元依據亮度感測訊號而 啟動第一模式電路或第二模式電路，俾使讀取單元輸出一 感應輸出值。 承上所述，依據本發明之觸控式顯示面板、觸控式顯 示裝置及觸控式顯示面板之控制方法，其係藉由光感測單 201117080 元依據環境光源輸出亮度感測訊號。而模式選擇單元依據 亮度感測訊號而啟動第-模式電路或苐二模式電路，^得 讀取單元輸出-感應輸出值。於本發明中，係以例如但不 限於當光感測單元感測環境光源微弱時，模式選擇單元係 啟動第—模式電路，當光感測單域測環境光源充足時Γ 模式選擇單元係啟動第二模式電路。. 【實施方式】 、以了將參照相關圖式，說明依本發明較佳實施例之觸 顯示面板、，控式顯示裝置及觸控式顯示面板之控制 與署=圖1所示’本發明較佳實施例之-觸控式顯示 係包含—觸控式顯示面板2、-資料控制電路3 一掃描控制電路4、—位置判斷電路5、複 sm、複數資料線Di〜d % Sl〜 一 及複數頊取線Αι〜An。掃描線 1 m以及貝料線Di-Dn係為交錯設置，並形成丄 錯區域。直中，々丄 〜战设數父 _ 各父錯區域係可設置相同的電路架構，為 間》日’M下將以掃描線&以及資料線 二 錯區域的電路架構為例說明。 “成之父 睛參照_2料，本發B佳冑補 板2係包含—觸抑 ^ 八.、'、貝不面 元23以及彡/⑦21、—讀取單元22、—光感測單 3以及―換式選擇單元24。 觸控單元9 1 θ » 平兀21具有一觸控開關211，於 控開關211係可Α ^ Λ W歹J中，觸 』為—電晶體Τ!，其閘極係與其一源 201117080 汲極電性連接。另外，觸控顯示面板2提供一偏壓Vbias 至電晶體1。當電晶體1受光照射時，其會產生漏電流， 而當電晶體Ί\無受光照射時，其不會產生漏電流，更精確 來說，電晶體1在受光照射與未受光照射的狀況下會有不 同的漏電流。於本實施例中，觸控式顯示面板2係藉由電 晶體的漏電流特性，以·判斷觸控式顯示面板2是否被觸 碰。 讀取單元22與觸控單元21電性連接，並經由讀取線 Α!與位置判斷電路5電性連接。讀取單元22係包含一讀 取開關221、一運算放大器222以及一電阻R!。其中，讀 取開關221係與觸控開關211以及掃描線S!電性連接。運 算放大器222具有一正輸入端、一負輸入端以及一輸出 端，其正輸入端接收一參考訊號VREF，其負輸入端與電阻 I之一端電性連接，第一電阻Ri之另一端與讀取開關211 電性連接。於本實施例中，讀取開關211係可為一電晶體 T2。 模式選擇單元24係與觸控單元2卜讀取單元22以及 光感測單元23電性連接，其係包含一選擇開關241、一選 擇開關242、一選擇開關243、一重置開關244、一反相器 245、一電阻R2、一電容Q、一運算電容C2以及一電容 C3。選擇開關241係與讀取開關221、光感測單元23以及 電容（^之一端電性連接，電容（^之另一端係與共同電極 VC0M電性連接。選擇開關242係與運算放大器222之負輸 入端電性連接，運算電容C2係與選擇開關242以及運算放 2〇1117〇8〇 大器222之輸出端電性連接。選擇開關243係與運算放大 器222之負輸入端以及反相$ 245之一端電性連接了反相 器245之另一端係與光感測單元23電性連接。重置開關 244與選擇開關242以及運算電容C2並聯，電阻係與 瘗擇開關243及運算放大器222之輸出端電性連接❶^ 中，重置開關244係經由一切換訊號線所傳送的切換訊號 扔將其控制為導通狀態，以使運算電容c：2進行放電來重U 蓼運算電容C2的狀態。 於本實施例中，選擇開關241、選擇開關242、重置 • 開關244、電容C!以及運算電容C2係可整合為一第—模 式電路，選擇開關243、反相器245以及電阻r2係可整合 '為一第二模式電路，其中選擇開關241、242、243以及重 •蓼開關244係可分別為一電晶體丁3、一電晶體丁4、一電晶 癉I以及一電晶體丁6。 如圖2所示’模式選擇單元24更包含一電容C3。於 未實施例中’模式選擇單元24亦可更包含一反相器，其 #善與光感測單元23以及選擇開關242電性連接。另外， - 於實作上，電晶體Ti、T2、τ3以及電容C!係可設置於觸 拨式顯示面板2上，電晶體τ4、τ5、T6、電阻R〗、R2、電 # C2、c：3、反相器245以及運算放大器222係可設置於一 /曰片上。 又’本實施例之觸控式顯示面板2更包含一畫素單元 25 ’其係鄰設於觸控單元21。晝素單元25具有一晝素開 關丁7以及一晝素等效電容C4。晝素開關τ7係與掃描線 201117080201117080 VI. Description of the Invention: [Technical Field] The present invention relates to a touch display panel, a touch display device, and a touch display panel control method. [·Previous technology] With the continuous advancement of technology, various information devices are constantly being updated. Among them, in the case of data input devices, in addition to generally inputting data by keyboard or mouse, using touch technology to input data is another choice of input methods. In addition to being visual and auditory, people are still tactile, and with the continuous update of sensor technology, touch technology has become another choice for people to communicate with information devices. On the other hand, traditional computer input interfaces (such as keyboards or mice) are difficult to operate for those who are not familiar with the computer, and one of the obstacles to the popularity of computers. In order to provide a more intuitive operating device, the recent development and active development of a touch display panel. The touch-sensitive display panel has a user-friendly input interface feature, so that users of any age can directly input data with a finger or a stylus, or select a function option on the touch display panel. A touch display panel is provided with a layer of an outer touch film outside the display panel to sense a touch position. However, this practice will increase the thickness of the display panel and the material cost, and will reduce the display brightness. Recently, the industry has developed a built-in (In cell) touch-sensitive display 201117080 = panel's use of a thin-film π-day electric celestial body made by a thin-film transistor process to sense touched The position 'is based on the principle that the transistor = source or drain is electrically connected. When the transistor is exposed to light and irradiated, it will generate different signals, so the control of the back end can be known early. The location where the person touched. a ^ 'Λ:...The touch display panel of the trowel is operated when the user with sufficient ambient light source touches with the stylus. 'Because the ambient light source and the set ^ Γ Γ are generated by the same signal, the touch is caused. The difficult (4) face (4) of the position is used for the environment, _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 'How to provide - a kind of touch-sensitive display device and its control method that can be normally operated in an environment with sufficient ambient light source and a weak environment of the bad brother light source, which is an important topic at present [ SUMMARY OF THE INVENTION There is a clock I in the above-mentioned subject, the purpose of this hairpin is to provide a type of circuit based on the ring light source, and the S (four) control type display panel, touch display, and touch (4) Method of Controlled (5) Panel. For the purpose of the present invention, the present invention provides a touch display panel comprising a touch unit, a read low, a light sensing unit, and a read unit and a touch unit. Connection. Light " early 7^--Environmental light source output - brightness sensing signal. Mode selection 201117080 yuan has a first mode circuit and a second mode circuit, and with the touch unit, the reading unit and the light sensing unit The mode selection unit activates the first mode circuit or the second mode circuit according to the brightness sensing signal, and causes the reading unit to output an inductive output value. To achieve the above objective, the present invention provides a touch display panel. The touch control panel has a touch unit, a reading unit, a light sensing unit and a mode selection unit. The reading unit is electrically connected to the touch unit. The mode selection unit has a first mode circuit. And a second mode circuit, and is electrically connected to the touch unit, the reading unit, and the light sensing unit. The control method of the touch display panel comprises the following steps: The measuring unit outputs a brightness sensing signal according to an ambient light source; the first mode circuit or the second mode circuit mode is activated by the mode selecting unit according to the brightness sensing signal; and an inductive output value is output by the reading unit. The present invention provides a touch display device including a touch display panel, the touch display panel having a touch unit, a reading unit, a light sensing unit, and a mode selection unit. The reading unit is electrically connected to the touch unit. The light sensing unit outputs a brightness sensing signal according to an ambient light source. The mode selecting unit has a first mode circuit and a second mode circuit, and the touch unit and the reading unit The unit and the optical sensing unit are electrically connected. The mode selecting unit activates the first mode circuit or the second mode circuit according to the brightness sensing signal, so that the reading unit outputs an inductive output value. According to the present invention, The control method of the touch display panel, the touch display device and the touch display panel is based on the light sensing list 201117080 yuan The ambient light source outputs a brightness sensing signal, and the mode selection unit activates the first mode circuit or the second mode circuit according to the brightness sensing signal, and the reading unit outputs the sensing output value. In the present invention, for example, but not When the light sensing unit senses that the ambient light source is weak, the mode selection unit activates the first mode circuit, and when the light sensing single area measurement environment light source is sufficient, the mode selection unit activates the second mode circuit. [Embodiment] The control panel of the touch display panel, the control display device and the touch display panel according to the preferred embodiment of the present invention will be described with reference to the related drawings. The touch display system includes a touch display panel 2, a data control circuit 3, a scan control circuit 4, a position determination circuit 5, a complex sm, a plurality of data lines Di~d% Sl~, and a plurality of capture lines. Αι~An. The scanning line 1 m and the shell line Di-Dn are staggered and form a wrong area. Straight, 々丄 战 战 数 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ "The father's eye is referenced to _2 material, the B-good 胄 patch 2 series contains - touch ^ 八,, ', 贝不面元23 and 彡 / 721, - reading unit 22, - light sensing list 3 and the "change type selection unit 24." The touch unit 9 1 θ » The flat switch 21 has a touch switch 211, and the control switch 211 is Α ^ Λ W歹J, and the touch is "transistor Τ!" The gate is electrically connected to its source 201117080. In addition, the touch display panel 2 provides a bias voltage Vbias to the transistor 1. When the transistor 1 is illuminated by light, it generates leakage current, and when the transistor is illuminated, When there is no light irradiation, it does not generate leakage current. More precisely, the transistor 1 has different leakage currents in the case of receiving light and not receiving light. In this embodiment, the touch display panel 2 is The touch-sensitive display panel 2 is electrically touched by the leakage current characteristic of the transistor. The reading unit 22 is electrically connected to the touch unit 21, and is electrically connected to the position determining circuit 5 via the reading line Α! The reading unit 22 includes a read switch 221, an operational amplifier 222, and a resistor R!. The switch 221 is electrically connected to the touch switch 211 and the scan line S! The operational amplifier 222 has a positive input terminal, a negative input terminal and an output terminal, and the positive input terminal receives a reference signal VREF, and the negative input terminal thereof One end of the resistor I is electrically connected, and the other end of the first resistor Ri is electrically connected to the read switch 211. In this embodiment, the read switch 211 can be a transistor T2. The mode selection unit 24 is connected to the touch. The unit 2 and the light sensing unit 23 are electrically connected, and include a selection switch 241, a selection switch 242, a selection switch 243, a reset switch 244, an inverter 245, and a resistor R2. a capacitor Q, an operational capacitor C2, and a capacitor C3. The selection switch 241 is electrically connected to the read switch 221, the light sensing unit 23, and the capacitor (the other end of the capacitor and the common electrode VC0M) The selection switch 242 is electrically connected to the negative input terminal of the operational amplifier 222, and the operational capacitor C2 is electrically connected to the output terminal of the selection switch 242 and the operational amplifier 2〇1117〇8〇 222. The selection switch 243 System and operation amplification The other end of the negative input terminal 222 and the opposite end of the inverter 245 are electrically connected to the photo sensing unit 23. The reset switch 244 is connected in parallel with the selection switch 242 and the operational capacitor C2. The electrical connection between the selection switch 243 and the output terminal of the operational amplifier 222 is such that the reset switch 244 is controlled to be in a conducting state via a switching signal transmitted by a switching signal line, so that the operational capacitor c: 2 is performed. The discharge is used to re-calculate the state of the capacitor C2. In this embodiment, the selection switch 241, the selection switch 242, the reset switch 244, the capacitor C!, and the operational capacitor C2 can be integrated into a first mode circuit, and the selection switch 243, the inverter 245 and the resistor r2 can be integrated into a second mode circuit, wherein the selection switches 241, 242, 243 and the heavy switch 244 can be a transistor D, a transistor D, respectively. A transistor I and a transistor D6. As shown in Fig. 2, the mode selection unit 24 further includes a capacitor C3. In the embodiment, the mode selection unit 24 may further include an inverter, which is electrically connected to the light sensing unit 23 and the selection switch 242. In addition, in practice, the transistors Ti, T2, τ3, and the capacitor C! can be disposed on the touch-type display panel 2, the transistors τ4, τ5, T6, the resistors R, R2, and #C2, c : 3. The inverter 245 and the operational amplifier 222 can be disposed on a/off chip. Further, the touch display panel 2 of the present embodiment further includes a pixel unit 25' disposed adjacent to the touch unit 21. The halogen unit 25 has a halogen switch 7 and a halogen equivalent capacitor C4. Alizarin switch τ7 series and scanning line 201117080
Si資料線Di以及晝素等效電容C4電性連接。於實施上， 晝素等效電容Q係可包含相互電性連接之-液晶電容Clc t及:儲存電容Cst。其中，液晶電容cLC及儲存電容Cst 分別=連接於晝素開關丁 7以及共同電極^_之間。另 外，本貫施例之觸控式顯示面板2係可包含一發光元件， 以應用於一有機發光二極體（ OL朗顯示面板。體（_ _ng diode， 所示，光感測單元23係依據—環境光源輸出 1 ” 、弟核式以及一第二模式。於本實施例中， 以例如但不限於當環境光源微弱時（例如電影院、夜 或其他昏暗的場所），光感測單元23輪出一高準位之: =訊=使得模式選擇單元24操作於第一模式： 路。當環境光源充足時(例如晴天的戶外或 八他先源充足的場所），光感測單元23輪出—低準位 度感測訊號Β】，使得模式選擇單元24操 二 啟動第二模式電路。 、弟一杈式亚 以下，將詳細說明當模式選擇單元24操 式（環境光源微弱）時，觸控式顯 _ 、 請參照圓3所示，當光感測單元23輪出反=動情形。 測訊號Βι時，電晶體丁3'丁4分別4導通狀離。之:度感 依據高準位之亮度感測訊號BI輪 ^目s 245 號為截止狀態。=感測訊 電晶體Tl放電’電容。2、。3為並聯，其係可 201117080 電容c5。 因此，其正輸入 之電壓準位將維 由於運算放大器222係為一負迴授， 端與負輸入端的電壓相同，亦即負輸入端 持為參考訊號VREF 〇 曰體ΪΓ、線:？送一咖準位之掃插訊號而導通電 :曰”：…電流讓經等效電容^電晶叫電 阻R!、電晶體τ2、T3，並對電容c充電， τ3的節點μ充電至轉替ν 日日體kThe Si data line Di and the halogen equivalent capacitor C4 are electrically connected. In practice, the halogen equivalent capacitor Q system may include a liquid crystal capacitor Clc t and a storage capacitor Cst electrically connected to each other. The liquid crystal capacitor cLC and the storage capacitor Cst are respectively connected between the halogen switch D1 and the common electrode ^_. In addition, the touch display panel 2 of the present embodiment may include a light emitting element for application to an organic light emitting diode ( _ _ ng diode, as shown, the light sensing unit 23 According to the ambient light source output 1", the young core mode and a second mode. In the embodiment, for example, but not limited to when the ambient light source is weak (for example, a movie theater, night or other dark places), the light sensing unit 23 Turning out a high level: = signal = causes the mode selection unit 24 to operate in the first mode: way. When the ambient light source is sufficient (for example, a sunny outdoor or a place where the eight sources are sufficient), the light sensing unit 23 The low-level sensing signal Β causes the mode selecting unit 24 to operate the second mode circuit. The following is a detailed description of when the mode selecting unit 24 operates (the ambient light source is weak). Touch display _, please refer to circle 3, when the light sensing unit 23 rotates in the reverse direction. When the signal is Βι, the transistor D 3' D 4 is turned on and off. Level brightness sensing signal BI wheel s 245 Cut-off state = sense transistor Tl discharge 'capacitance. 2, .3 is parallel, which can be 201117080 capacitor c5. Therefore, its positive input voltage level will be a negative feedback due to the operational amplifier 222. The voltage at the end and the negative input is the same, that is, the negative input is held as the reference signal VREF. The line: ? sends a scan signal of the level of the power and conducts the power: 曰": ... current allows the equivalent capacitance ^ The electric crystal is called the resistor R!, the transistor τ2, T3, and charges the capacitor c, and the node μ of τ3 is charged to the ν day body k
>芩°札琥VRef的電壓準位。苴中 :流11對電容Cl充電時，電容。的充電電荷係與等效電 〜的充電電荷相同。因此，等效電容C5兩端具有一電 麼差VC5。此時，運算放大器222之輸出端 出值V。如下所示： ㈣輪 V〇= VREF+ VC5。 又，由於等效電容c5會儲存前—次掃描所輪出的電 1 ’一因此’當掃描、緣S1傳送掃描訊號之後，重置開關244 修ir、絰由切換訊號線所傳送的切換訊號將其控制為 通狀態，以使等效電容C5進行放電來重置等效電容C5的 電^。以下’將說明藉由光筆或手指觸碰觸控式顯示^板 2 h•，其感應輪出值v〇的變化情形。 當使用者以光筆觸碰觸控式顯示面板2時，由於光筆 照射電晶體Τι ’電晶體T〗的漏電流會變大，且等效電容 cs兩端的電壓差vC5也會變大，使得相對於觸 碰位置之交 錯區域的感應輸出值V〇會提升。藉此，位置判斷電路5 係可依據感應輸出值v〇判斷觸碰位置。 11 201117080 當使用者以手指觸碰觸控式顯示面板2時，此時，兩 晶體t沒有光線照射，而不會產生漏電流，此時，^管: 大器222之輸出端輸出感應輸出值v〇如下所示. V〇=VREF。 #另外，觸控式顯示面板2未被觸碰之交錯區域， 算放大器222之輸出端輸出感應輸出值ν〇如下所示：/、 V〇=VrEF+ VC5。 、藉此，位置判斷電路5係依據各交錯區域輸出不同的 感應輸出值V 〇而判斷觸碰位置。 以下，將詳細說明當模式選擇單元24操作於第二模 式⑽境光源充足）時，觸控式顯示面板2的作動情形。、 請參照圖4所示，當光感測單元23輸出低準位之亮产/ 測訊號Bl時，電晶體T3、Τ4分別為截止狀態。反相器^5 依據低準位之亮度感测訊號Βι輪出高準位之低度感測气 ，以控制電晶體凡為導通狀態。 田掃1¾線S!傳送—高電壓準位之掃描訊號控制電曰曰 體T2導通時，一電流ί2係流經電阻R2、電晶體T5、電阻 Κ、電晶體τ2、Tl。此時，運算放大器222之輸 -感應輸出值v〇如下所示： 彻出 V〇=Vref+ I2X R2。 ”田使用者以光筆觸碰觸控式顯示面板2時，由於 二、、射電日日體Tl，電晶體Τι的漏電流會變大，使得相對於 觸=位置之交錯區域的感應輸出值V0也會提升。藉此， 化且^斷包路5係可依據感應輸出值％判斷觸碰位置。 12 201117080 當使用者以手指觸 晶體τ i沒有光線照射， 大益222之輸出端輸出 V〇=VREF。 碰觸控式顯示面板2時，此時，電 而不會產生漏電流’此時，運管放 一感應輸出值V〇如下所示： ^ 卫"ι貝示面板2未被觸碰之交錯區域，n 算放大器222之輪出端輸出-感應輸出值V。如下所示其運 V〇- VREF+ I2><r2 〇 ” 藉此’位置判斷電路5係依據各交錯區域 感應輸出值V〇而判斷觸碰位置。 P ， 凊參照圖5所示，本發明較佳實施 示面板的控制方法係包含步驟W21至步驟w二顯 f。示面板的控制方法係可應用於圖2 t之觸控式顯^面板 ^驟1係自光相單元依據―環境錢輸出一宾 度感測訊號。㈣W22，）w單核^二 喊而啟動第—模式電路或第二模式電路模式。3 彻，係由讀取單元輪出一感應輪出值。料步驟 其中洋細的控制方式，於上述實施例中已-併詳述， 故於此不再加以贅述。 1汗孑述 顯厂'梦we =日依據本發明之觸控式顯示面板、觸控式 據式顯示面板之控制方法，其係藉由光感測 二度 ==π::號，式選擇單元依 rw : 式電路或第二模式電路，使 付續取早兀輸出-感應輸出值。於本發明中，係以例如但 Γ "»· 13 201117080 不限於當 先4澎早兀鐵挪環境光源 係啟動m電路， T料早兀 時，模式選擇n 早7"感挪環境光源充足 棋式&擇早騎'啟動第二模式電路。 以上所述僅為舉例彳 本發明之料與料 ㈣。任何未脫離 應包含於後附之申請專==狀事效修改或變更，均 【圖式簡單說明】 施例之觸控式顯示裝置的示意 圖1為本發明較佳實 圖； 顯示面板的驅動電流示意 圖1 2為圖1十觸控式顯示面板的示意圖. 圖3至圖4為操作觸㈣ 以及 顯不面板的控制步 圖5為本發明較佳實施例之觸控式 驟流程圖。 【主要元件符號說明 1 :觸控式顯示裝置 21 :觸控單元 22 :讀取單元 222 :運算放大器 24 :模式選擇單元 244 :重置開關 25 :晝素單元 1 .觸控式顯示面板 211 :觸控開關 221 :讀取開關 23 :光感測單元 241 ' 242、243 :選擇開關 245 :反相器 2 :資料控制電路 201117080 4:掃描控制電路 A1 ^ An . t買取線 B2 :切換訊號 Di〜Dn :資料線 Ri、R2 :電阻 Τι〜T7 :電晶體 Vc〇M ·共同電極 Vref •參考訊號 5:觸碰控制迴路 B!:亮度感測訊號> 芩 ° Shuanghu VRef voltage level.苴中: When the flow 11 charges the capacitor Cl, the capacitor. The charge charge is the same as the charge charge of the equivalent charge. Therefore, the equivalent capacitance C5 has a power difference VC5 at both ends. At this time, the output of the operational amplifier 222 has a value of V. As shown below: (4) Wheel V〇= VREF+ VC5. Moreover, since the equivalent capacitor c5 stores the power that is rotated by the previous scan, and therefore, after the scan and the edge S1 transmit the scan signal, the reset switch 244 repairs the switch signal transmitted by the switching signal line. It is controlled to the on state to discharge the equivalent capacitor C5 to reset the voltage of the equivalent capacitor C5. The following will describe the change of the sense wheel value v〇 by touching the touch display panel 2 h• with a light pen or a finger. When the user touches the touch display panel 2 with the light pen, the leakage current of the transistor 电 'the transistor T 〗 will become larger, and the voltage difference vC5 across the equivalent capacitor cs will also become larger, so that the relative The induced output value V〇 of the staggered area at the touch position is increased. Thereby, the position judging circuit 5 can judge the touch position based on the inductive output value v〇. 11 201117080 When the user touches the touch display panel 2 with his finger, at this time, the two crystals t are not illuminated by light, and no leakage current is generated. At this time, the output of the large device 222 outputs the sensing output value. V〇 is as follows. V〇=VREF. # In addition, the touch display panel 2 is not touched by the interleaved area, and the output of the amplifier 222 outputs an inductive output value ν〇 as follows: /, V〇=VrEF+ VC5. Thereby, the position judging circuit 5 judges the touch position by outputting different inductive output values V 各 according to the respective interleaved areas. Hereinafter, the operation of the touch display panel 2 when the mode selection unit 24 operates in the second mode (10) is sufficient. Referring to FIG. 4, when the light sensing unit 23 outputs the light level/test signal B1 of the low level, the transistors T3 and Τ4 are respectively turned off. The inverter ^5 controls the low-sensitivity gas of the high level according to the low-level brightness sensing signal Βι to control the transistor to be in a conducting state. Field sweep 13⁄4 line S! Transmit - high voltage level scan signal control power When body T2 is turned on, a current ί2 flows through resistor R2, transistor T5, resistor Κ, transistor τ2, Tl. At this time, the input-inductive output value v〇 of the operational amplifier 222 is as follows: Clear V〇=Vref+ I2X R2. When the user touches the touch display panel 2 with the light pen, the leakage current of the transistor 变ι becomes larger due to the second day of the radio field T1, so that the induced output value V0 relative to the staggered area of the touch=position is obtained. It will also be upgraded. In this way, the 5th line can determine the touch position according to the sensing output value. 12 201117080 When the user touches the crystal τ i with no light, the output of Dayi 222 outputs V〇 =VREF. When the touch panel 2 is touched, at this time, the electric current will not generate leakage current. At this time, the inductive output value V〇 of the transport tube is as follows: ^ 卫"ι贝示面板2 is not In the staggered area of the touch, the output of the n-amplifier 222 is output-sensing output value V. As shown below, it is operated V〇-VREF+I2><r2 〇" by this position determining circuit 5 is based on each interlaced area sensing The output value V〇 is output to determine the touch position. P, 凊 Referring to Fig. 5, the control method of the preferred embodiment of the present invention includes steps W21 to w. The control method of the display panel can be applied to the touch-sensitive display panel of FIG. 2, and the self-optical phase unit outputs a bin-sensing signal according to the environmental money. (4) W22,)w single core ^2 shout and start the first mode circuit or the second mode circuit mode. 3, the rotation of the sensor unit is rotated by the reading unit. The step of controlling the fineness of the fineness has been described in detail in the above embodiments, and thus will not be further described herein. 1Khan said that the factory 'dream we = day according to the touch display panel of the present invention, the touch type display panel control method, which is selected by the light sensing second degree == π:: The unit is based on the rw: type circuit or the second mode circuit, so that the output of the early output-sensing output value is made. In the present invention, for example, but Γ "»· 13 201117080 is not limited to the first 4 澎 兀 兀 挪 环境 环境 环境 环境 环境 环境 环境 环境 环境 环境 环境 环境 环境 , 环境 , 环境 环境 环境 环境 环境 环境 环境 环境 环境 环境 环境 环境 环境 环境 环境 环境 环境 环境 环境 模式 模式 模式 模式 模式Type & early riding 'starts the second mode circuit. The above description is only illustrative of the materials and materials of the present invention (4). Any application that is not included in the application of the following is a modification or change of the application, and a schematic diagram of the touch display device of the embodiment is a preferred embodiment of the present invention; FIG. 3 is a schematic diagram of a touch-sensitive display panel according to a preferred embodiment of the present invention. FIG. 3 is a schematic diagram of a touch-sensitive display panel according to a preferred embodiment of the present invention. [Main component symbol description 1: touch display device 21: touch unit 22: reading unit 222: operational amplifier 24: mode selection unit 244: reset switch 25: pixel unit 1. touch display panel 211: Touch switch 221: read switch 23: light sensing unit 241' 242, 243: selection switch 245: inverter 2: data control circuit 201117080 4: scan control circuit A1 ^ An. t buy line B2: switch signal Di ~Dn: data line Ri, R2: resistance Τι~T7: transistor Vc〇M · common electrode Vref • reference signal 5: touch control loop B!: brightness sensing signal
Ci〜C4、Clc、Cst :電容 II、工2 .電流 S1〜s m :掃描線Ci~C4, Clc, Cst: Capacitor II, Work 2. Current S1~s m : Scanning line
Vbias :偏壓 · V 〇 :感應輸出值 W21〜W23 :步驟Vbias : Bias · V 〇 : Inductive output value W21~W23 : Step
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