TWI399680B - Touch display panel, touch display apparatus and control methods thereof - Google Patents
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Description
本發明係關於一種顯示面板、顯示裝置及其控制方法,特別關於一種觸控式顯示面板、觸控式顯示裝置及其控制方法。The present invention relates to a display panel, a display device, and a control method thereof, and more particularly to a touch display panel, a touch display device, and a control method thereof.
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,使得感觸式感測器成了人與資訊設備溝通的另一選擇。With the continuous advancement of technology, various information devices are constantly being introduced. Among them, in terms 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 the visual and auditory senses, people still have a sense of touch, and with the continuous update of sensor technology, the touch sensor has become another choice for people to communicate with information devices.
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,近來業者積極的發展觸控式顯示面板(touch display panel)。On the other hand, traditional computer input interfaces (such as keyboards or mice) have some difficulties in operation for those who are not familiar with the computer, and one of the obstacles to the popularization of computers. In order to provide a more intuitive operating device, recently, the industry has actively developed a touch display panel.
一般而言,觸控式顯示面板是在一顯示面板(例如液晶顯示面板)的一顯示面之上另外設置一觸控板。然而,額外設置的觸控板除了會增加觸控式顯示面板的整體厚度,且材料成本也會相對的增加。近來,有業者將觸控板整合至顯示面板中,藉此,以節省材料成本並減少觸控式顯示面板的厚度。Generally, a touch display panel is additionally provided with a touch panel on a display surface of a display panel (for example, a liquid crystal display panel). However, the additionally provided touchpad not only increases the overall thickness of the touch display panel, but also increases the material cost. Recently, some operators have integrated a touch panel into a display panel, thereby saving material cost and reducing the thickness of the touch display panel.
另外,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皆可直接以手指或以觸控筆來輸入資料或選取觸控式顯示面板上的功能選項。當使用者以例如直接以手指觸碰觸控式顯示面板時,觸碰觸控式顯示面板係可依據一外部光源變化而判斷觸碰位置。In addition, the touch 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. When the user touches the touch display panel with a finger, for example, the touch display panel can determine the touch position according to an external light source change.
因此,如何提供一種藉由光感測元件依據外部光源變化而準確地判斷觸碰位置之觸控式顯示面板、觸控式顯示裝置及其控制方法,實屬當前重要課題之一。Therefore, how to provide a touch display panel, a touch display device and a control method thereof for accurately determining a touch position according to changes in an external light source of the light sensing element is one of the current important topics.
有鑑於上述課題,本發明之目的為提供一種藉由一光感測元件依據外部光源變化而準確地判斷觸碰位置之觸控式顯示面板、觸控式顯示裝置及其控制方法。In view of the above problems, an object of the present invention is to provide a touch display panel, a touch display device, and a control method thereof that accurately determine a touch position by a light sensing element according to changes in an external light source.
為達上述目的,本發明提供一種觸控式顯示面板,其係包含一第一基板以及一第二基板。第一基板具有一遮光層。第二基板與第一基板相對設置,並具有一觸控單元以及一讀取單元。觸控單元具有一第一光感測元件以及一第二光感測元件。第一光感測元件與一第一偏壓線電性連接,並與部分之遮光層相對設置。第二光感測元件與第一光感測元件及一第二偏壓線電性連接,其中第二光感測元件依據一外部光源變化,而使觸控單元輸出一觸控訊號。讀取單元與觸控單元電性連接,依據觸控訊號輸出一感應輸出值。To achieve the above objective, the present invention provides a touch display panel comprising a first substrate and a second substrate. The first substrate has a light shielding layer. The second substrate is disposed opposite to the first substrate and has a touch unit and a reading unit. The touch unit has a first light sensing element and a second light sensing element. The first light sensing element is electrically connected to a first bias line and disposed opposite to a portion of the light shielding layer. The second light sensing component is electrically connected to the first light sensing component and a second biasing line. The second light sensing component changes the external light source to cause the touch unit to output a touch signal. The reading unit is electrically connected to the touch unit, and outputs an inductive output value according to the touch signal.
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,其中觸控式顯示面板具有一第一基板以及一第二基板。第一基板具有一遮光層。第二基板與第一基板相對設置,並具有一觸控單元以及一讀取單元。觸控單元具有一第一光感測元件以及一第二光感測元件。第一光感測元件與一第一偏壓線電性連接,並與部分之遮光層相對設置。第二光感測元件與第一光感測元件及一第二偏壓線電性連接,讀取單元與觸控單元電性連接。觸控式顯示面板之控制方法包含以下步驟:由第二光感測元件依據一外部光源變化,而使觸控單元輸出一觸控訊號;以及由讀取單元依據觸控訊號輸出一感應輸出值。To achieve the above objective, the present invention provides a control method for a touch display panel, wherein the touch display panel has a first substrate and a second substrate. The first substrate has a light shielding layer. The second substrate is disposed opposite to the first substrate and has a touch unit and a reading unit. The touch unit has a first light sensing element and a second light sensing element. The first light sensing element is electrically connected to a first bias line and disposed opposite to a portion of the light shielding layer. The second photo sensing element is electrically connected to the first photo sensing element and a second bias line, and the reading unit is electrically connected to the touch unit. The control method of the touch display panel includes the following steps: the second light sensing component outputs a touch signal according to an external light source change; and the sensing unit outputs an inductive output value according to the touch signal. .
為達上述目的,本發明提供一種觸控式顯示裝置,其係包含一背光模組以及一觸控式顯示面板。觸控式顯示面板與背光模組相對設置,並具有一第一基板以及一第二基板。第一基板具有一遮光層。第二基板與第一基板相對設置,並具有一觸控單元以及一讀取單元。觸控單元具有一第一光感測元件以及一第二光感測元件。第一光感測元件與一第一偏壓線電性連接,並與部分之遮光層相對設置。第二光感測元件與第一光感測元件及一第二偏壓線電性連接,其中第二光感測元件依據一外部光源變化,而使觸控單元輸出一觸控訊號。讀取單元與觸控單元電性連接,依據觸控訊號輸出一感應輸出值。To achieve the above objective, the present invention provides a touch display device comprising a backlight module and a touch display panel. The touch display panel is disposed opposite to the backlight module and has a first substrate and a second substrate. The first substrate has a light shielding layer. The second substrate is disposed opposite to the first substrate and has a touch unit and a reading unit. The touch unit has a first light sensing element and a second light sensing element. The first light sensing element is electrically connected to a first bias line and disposed opposite to a portion of the light shielding layer. The second light sensing component is electrically connected to the first light sensing component and a second biasing line. The second light sensing component changes the external light source to cause the touch unit to output a touch signal. The reading unit is electrically connected to the touch unit, and outputs an inductive output value according to the touch signal.
為達上述目的,本發明提供一種觸控式顯示裝置之控制方法,其中觸控式顯示裝置具有一背光模組及一觸控式顯示面板。觸控式顯示面板與背光模組相對設置,並具有一第一基板以及一第二基板。第一基板具有一遮光層。第二基板與第一基板相對設置,並具有一觸控單元以及一讀取單元。觸控單元具有一第一-光感測元件以及一第二光感測元件。第一光感測元件與一第一偏壓線電性連接,並與部分之遮光層相對設置。第二光感測元件與第一光感測元件及一第二偏壓線電性連接。讀取單元與觸控單元電性連接。觸控式顯示裝置之控制方法包含以下步驟:由第二光感測元件依據一外部光源變化,而使觸控單元輸出一觸控訊號;以及由讀取單元依據觸控訊號輸出一感應輸出值。To achieve the above objective, the present invention provides a control method for a touch display device, wherein the touch display device has a backlight module and a touch display panel. The touch display panel is disposed opposite to the backlight module and has a first substrate and a second substrate. The first substrate has a light shielding layer. The second substrate is disposed opposite to the first substrate and has a touch unit and a reading unit. The touch unit has a first-light sensing element and a second light sensing element. The first light sensing element is electrically connected to a first bias line and disposed opposite to a portion of the light shielding layer. The second light sensing component is electrically connected to the first light sensing component and a second bias line. The reading unit is electrically connected to the touch unit. The control method of the touch display device includes the following steps: the second light sensing component outputs a touch signal according to an external light source change; and the sensing unit outputs an inductive output value according to the touch signal. .
為達上述目的,本發明提供一種觸控式顯示面板,其係包含一第一基板以及一第二基板。第一基板具有一遮光層。第二基板與第一基板相對設置,並具有一觸控單元以及一讀取單元。觸控單元具有一第一光感測元件以及一第二光感測元件。第一光感測元件與部分之遮光層相對設置。第二光感測元件與第一光感測元件及一偏壓線電性連接,其中第二光感測元件依據一外部光源變化,而使觸控單元輸出一觸控訊號。讀取單元與觸控單元電性連接,依據觸控訊號輸出一感應輸出值。To achieve the above objective, the present invention provides a touch display panel comprising a first substrate and a second substrate. The first substrate has a light shielding layer. The second substrate is disposed opposite to the first substrate and has a touch unit and a reading unit. The touch unit has a first light sensing element and a second light sensing element. The first light sensing element is disposed opposite to a portion of the light shielding layer. The second light sensing component is electrically connected to the first light sensing component and a bias line. The second light sensing component changes the external light source to cause the touch unit to output a touch signal. The reading unit is electrically connected to the touch unit, and outputs an inductive output value according to the touch signal.
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第一基板以及一第二基板。第一基板具有一遮光層。第二基板與第一基板相對設置,並具有一觸控單元以及一讀取單元。觸控單元具有一第一光感測元件以及一第二光感測元件。第一光感測元件與部分之遮光層相對設置,第二光感測元件與第一光感測元件及一偏壓線電性連接。讀取單元與觸控單元電性連接。觸控式顯示面板之控制方法包含以下步驟:由第二光感測元件依據一外部光源變化,而使觸控單元輸出一觸控訊號;以及由讀取單元依據觸控訊號輸出一感應輸出值。To achieve the above objective, the present invention provides a control method for a touch display panel having a first substrate and a second substrate. The first substrate has a light shielding layer. The second substrate is disposed opposite to the first substrate and has a touch unit and a reading unit. The touch unit has a first light sensing element and a second light sensing element. The first light sensing element is disposed opposite to a portion of the light shielding layer, and the second light sensing element is electrically connected to the first light sensing element and a bias line. The reading unit is electrically connected to the touch unit. The control method of the touch display panel includes the following steps: the second light sensing component outputs a touch signal according to an external light source change; and the sensing unit outputs an inductive output value according to the touch signal. .
為達上述目的,本發明提供一種觸控式顯示裝置,其係包含一背光模組以及一觸控式顯示面板。觸控式顯示面板與背光模組相對設置,並具有一第一基板以及一第二基板。第一基板具有一遮光層。第二基板與第一基板相對設置,並具有一觸控單元以及一讀取單元。觸控單元具有一第一光感測元件以及一第二光感測元件。第一光感測元件與部分之遮光層相對設置,第二光感測元件與第一光感測元件及一偏壓線電性連接,其中第二光感測元件依據一外部光源變化,而使觸控單元輸出一觸控訊號。讀取單元與觸控單元電性連接,依據觸控訊號輸出一感應輸出值。To achieve the above objective, the present invention provides a touch display device comprising a backlight module and a touch display panel. The touch display panel is disposed opposite to the backlight module and has a first substrate and a second substrate. The first substrate has a light shielding layer. The second substrate is disposed opposite to the first substrate and has a touch unit and a reading unit. The touch unit has a first light sensing element and a second light sensing element. The first light sensing element is disposed opposite to the portion of the light shielding layer, and the second light sensing element is electrically connected to the first light sensing element and a bias line, wherein the second light sensing element changes according to an external light source, and The touch unit outputs a touch signal. The reading unit is electrically connected to the touch unit, and outputs an inductive output value according to the touch signal.
為達上述目的,本發明提供一種觸控式顯示裝置之控制方法,其中觸控式顯示裝置具有一背光模組以及一觸控式顯示面板。觸控式顯示面板與背光模組相對設置,並具有一第一基板以及一第二基板。第一基板具有一遮光層。第二基板與第一基板相對設置,並具有一觸控單元以及一讀取單元。觸控單元具有一第一光感測元件以及一第二光感測元件。第一光感測元件與部分之遮光層相對設置,第二光感測元件與第一光感測元件及一偏壓線電性連接。讀取單元與觸控單元電性連接。觸控式顯示裝置之控制方法包含以下步驟:由第二光感測元件依據一外部光源變化,而使觸控單元輸出一觸控訊號;以及由讀取單元依據觸控訊號輸出一感應輸出值。To achieve the above objective, the present invention provides a control method for a touch display device, wherein the touch display device has a backlight module and a touch display panel. The touch display panel is disposed opposite to the backlight module and has a first substrate and a second substrate. The first substrate has a light shielding layer. The second substrate is disposed opposite to the first substrate and has a touch unit and a reading unit. The touch unit has a first light sensing element and a second light sensing element. The first light sensing element is disposed opposite to a portion of the light shielding layer, and the second light sensing element is electrically connected to the first light sensing element and a bias line. The reading unit is electrically connected to the touch unit. The control method of the touch display device includes the following steps: the second light sensing component outputs a touch signal according to an external light source change; and the sensing unit outputs an inductive output value according to the touch signal. .
承上所述,因依據本發明之觸控式顯示面板、觸控式顯示裝置及其控制方法,其係藉由將第一光感測元件以遮光層遮蔽,使其成為一參考用之光感測元件,並藉由第二光感測元件感測一外部光源,當使用者直接以手指或以觸控筆碰觸觸控式顯示裝置時,第二光感測元件感測到不同的外部光源亮度,而使觸控式顯示裝置能夠較準確的依據外部光源變化輸出觸控訊號,以藉由後端的位置判斷電路可以得知使用者觸碰的位置。According to the present invention, the touch display panel, the touch display device and the control method thereof are shielded by a light shielding layer to make it a reference light. Sensing component, and sensing an external light source by the second light sensing component, when the user directly touches the touch display device with a finger or a stylus, the second light sensing component senses different The brightness of the external light source enables the touch display device to output the touch signal accurately according to the change of the external light source, so that the position of the user touch can be known by the position determining circuit of the back end.
以下將參照相關圖式,說明依據本發明複數實施例之觸控式顯示面板、觸控式顯示裝置及其控制方法。Hereinafter, a touch display panel, a touch display device and a control method thereof according to a plurality of embodiments of the present invention will be described with reference to related drawings.
請參照圖1所示,本發明第一實施例之觸控式顯示面板1係包含一第一基板2以及一第二基板3。其中,第一基板2與第二基板3相對設置,而一液晶層4係設置於第一基板2以及第二基板3之間。Referring to FIG. 1 , the touch display panel 1 of the first embodiment of the present invention includes a first substrate 2 and a second substrate 3 . The first substrate 2 and the second substrate 3 are disposed opposite to each other, and a liquid crystal layer 4 is disposed between the first substrate 2 and the second substrate 3.
第一基板2係具有一遮光層21,其例如係為一遮光圖案,且於此並不限定其圖案形狀。本實施例之第一基板2更具有一彩色濾光層22以及一保護層23。其中,遮光層21、彩色濾光層22以及保護層23位於第一基板2及液晶層4之間,彩色濾光層22覆蓋部分之遮光層21,保護層23覆蓋部分之遮光層21以及彩色濾光層22。彩色濾光層22具有複數彩色光阻,例如是紅色(R)、或綠色(G)、或藍色(B)等。當一光線穿射彩色濾光層22時,其係依據不同彩色光阻而產生例如是紅光、或綠光或藍光等不同顏色的光線。本實施例之第一基板2係可為一彩色濾光基板。The first substrate 2 has a light shielding layer 21, which is, for example, a light shielding pattern, and the shape of the pattern is not limited thereto. The first substrate 2 of the embodiment further has a color filter layer 22 and a protective layer 23. The light shielding layer 21, the color filter layer 22, and the protective layer 23 are located between the first substrate 2 and the liquid crystal layer 4, the color filter layer 22 covers a portion of the light shielding layer 21, and the protective layer 23 covers a portion of the light shielding layer 21 and color. Filter layer 22. The color filter layer 22 has a plurality of color photoresists such as red (R), green (G), or blue (B). When a light passes through the color filter layer 22, it generates light of different colors such as red light, or green light or blue light according to different color photoresists. The first substrate 2 of the embodiment may be a color filter substrate.
另外,於本實施例中,遮光層21係可為一黑色矩陣,其材質係包含不透光材質,以降低紅光、或綠光或藍光之間的干擾,進而提高顯示品質。In addition, in the embodiment, the light shielding layer 21 can be a black matrix, and the material thereof is made of an opaque material to reduce interference between red light or green light or blue light, thereby improving display quality.
請參照圖2所示,本實施例之第二基板3例如為一電晶體基板,其具有複數資料線D11 ~D1n 以及複數掃描線S11 ~S1m 。其中,掃描線S11 ~S1m 以及資料線D11 ~D1n 係為交錯設置,並形成複數區域。在各交錯區域係可設置相同之電路架構。Referring to FIG. 2, the second substrate 3 of the present embodiment is, for example, a transistor substrate having a plurality of data lines D 11 to D 1n and a plurality of scanning lines S 11 to S 1m . Among them, the scanning lines S 11 to S 1m and the data lines D 11 to D 1n are alternately arranged, and a plurality of areas are formed. The same circuit architecture can be set in each interlaced area.
為簡化說明,以下將以掃描線S11 、資料線D11 及其形成之交錯區域的電路架構為例說明。請參照圖3所示,第二基板3更具有一觸控單元311以及一讀取單元312。To simplify the description, the following will scan line S 11, the circuit structure cross-section area of the data line D 11, and is formed of an example. As shown in FIG. 3 , the second substrate 3 further has a touch unit 311 and a reading unit 312 .
觸控單元311係與讀取單元312電性連接,並具有一第一光感測元件314以及一第二光感測元件315。於本實施例中,第一光感測元件314係可包含一光電晶體T11 ,第二光感測元件315係可包含一光電晶體T12 。The touch unit 311 is electrically connected to the reading unit 312 and has a first photo sensing element 314 and a second photo sensing element 315. In this embodiment, the first photo sensing element 314 can include a photo transistor T 11 , and the second photo sensing element 315 can include a photo transistor T 12 .
光電晶體T11 之一第一端與一第一偏壓線B11 電性連接,光電晶體T11 之一控制端與其一第二端電性連接。於本實施例中,光電晶體T11 係與部分之遮光層21相對設置,亦即部分之遮光層21與光電晶體T11 於一投影方向係為重疊,以作為一參考用的光電晶體。另外,由於光電晶體T11 之控制端與其第二端電性連接,因此,光電晶體T11 係可視為一光二極體(Photodiode)。The first end of the photo-electric crystal T 11 is electrically connected to a first bias line B 11 , and one of the control ends of the photo-electric crystal T 11 is electrically connected to a second end thereof. In this embodiment, the photo-electric crystal T 11 is disposed opposite to a portion of the light-shielding layer 21, that is, a portion of the light-shielding layer 21 and the photo-transistor T 11 are overlapped in a projection direction as a reference photo-crystal. Further, since the control terminal of the photo transistor T 11 is electrically connected to its second end, therefore, T 11 based phototransistors may be considered a light diode (Photodiode).
光電晶體T12 之一第一端與光電晶體T11 之第二端電性連接,一第二端與一第二偏壓線B12 電性連接,一控制端與其一第二端電性連接。本實施例之光電晶體T12 係用以感測一外部光源。另外,由於光電晶體T12 之控制端與其第二端電性連接,因此,光電晶體T12 係可視為一光二極體。T phototransistor one first and second ends 12 electrically connected the phototransistor T. 11, 12 and a second end electrically connected to a second bias line B, a control terminal and its second terminal electrically connected to a . The photoelectric crystal T 12 of this embodiment is for sensing an external light source. In addition, since the control end of the photo-electric crystal T 12 is electrically connected to the second end thereof, the photo-electric crystal T 12 can be regarded as a photodiode.
請同時參照圖2及圖3所示,讀取單元312與觸控單元311以及位置判斷電路34電性連接,並具有一讀取開關316、一運算放大器317及一電阻318。運算放大器317具有一正輸入端、一負輸入端以及一輸出端,其中,正輸入端接收一參考訊號VREF ,負輸入端經由一讀取線R11 與讀取開關316電性連接,讀取開關316係與第一光感測元件314以及第二光感測元件315電性連接,電阻318與運算放大器317之負輸入端及輸出端電性連接。於本實施例中,讀取開關316係可為一電晶體T13 ,於實作上,讀取單元312係可設置於位置判斷電路34中。另外,觸控式顯示面板1具有複數讀取線R11 ~R1n ,其中同一條讀取線,例如讀取線R11 ,係可與複數讀取開關316及一個運算放大器317電性連接。於本實施例中,並無限制讀取開關316需與運算放大器317具有相同的個數。As shown in FIG. 2 and FIG. 3 , the reading unit 312 is electrically connected to the touch unit 311 and the position determining circuit 34 , and has a read switch 316 , an operational amplifier 317 and a resistor 318 . An operational amplifier 317 having a positive input terminal, a negative input terminal and an output terminal, wherein the positive input terminal receives a reference signal V REF, a negative input terminal 316 is electrically connected via a read line and the read switch R 11, read The switch 316 is electrically connected to the first photo sensing element 314 and the second photo sensing element 315, and the resistor 318 is electrically connected to the negative input end and the output end of the operational amplifier 317. In the present embodiment, the read switch 316 can be a transistor T 13 . In practice, the read unit 312 can be disposed in the position determining circuit 34 . In addition, the touch display panel 1 has a plurality of read lines R 11 to R 1n , wherein the same read line, for example, the read line R 11 , can be electrically connected to the plurality of read switches 316 and one operational amplifier 317 . In the present embodiment, the read switch 316 is not limited to have the same number as the operational amplifier 317.
本實施例之第二基板3更具有一畫素單元313,其係鄰設於觸控單元311。畫素單元313具有一畫素開關319以及一畫素等效電容C11 。畫素開關319係與掃描線S11 、資料線D11 以及畫素等效電容C11 電性連接。於實施上,畫素等效電容C11 係可包含相互電性連接之一液晶電容CLC1 以及一儲存電容CST1 ,畫素開關319係可包含一電晶體T14 。然而,於本實施例中,使用者當可依據其需求,調整觸控式顯示面板1中之觸控單元311的個數,並非限制各畫素單元313旁皆需設置觸控單元311,其例如可由複數個畫素單元313為一群組,而於每一個群組再設置一個相對應的觸控單元311。The second substrate 3 of the embodiment further has a pixel unit 313 disposed adjacent to the touch unit 311. The pixel unit 313 has a pixel switch 319 and a pixel equivalent capacitance C 11 . The pixel switch 319 is electrically connected to the scanning line S 11 , the data line D 11 , and the pixel equivalent capacitance C 11 . In practice, the pixel equivalent capacitor C 11 may include a liquid crystal capacitor C LC1 and a storage capacitor C ST1 electrically connected to each other, and the pixel switch 319 may include a transistor T 14 . However, in this embodiment, the number of the touch units 311 in the touch display panel 1 can be adjusted according to the requirements of the user, and the touch unit 311 is not required to be disposed next to each of the pixel units 313. For example, a plurality of pixel units 313 may be a group, and a corresponding touch unit 311 is further disposed in each group.
本實施例之觸控式顯示面板1更包含一資料驅動電路32、一掃描驅動電路33以及一位置判斷電路34,其皆係以例如但不限於設置於第二基板3上。然而,熟知此一技藝者,當可將資料驅動電路32、或一掃描驅動電路33、或一位置判斷電路34分別設置於一印刷電路板(printed circuit board,PCB)或整合至一晶片,再與第二基板3上的電路電性連接。The touch display panel 1 of the present embodiment further includes a data driving circuit 32, a scan driving circuit 33, and a position determining circuit 34, which are, for example but not limited to, disposed on the second substrate 3. However, it is well known to those skilled in the art that the data driving circuit 32, or a scan driving circuit 33, or a position determining circuit 34 can be respectively disposed on a printed circuit board (PCB) or integrated into a chip. It is electrically connected to the circuit on the second substrate 3.
請同時參照圖2及圖3所示,當使用者觸碰觸控式顯示面板1時,由於光電晶體T12 沒有接收到外部光源,又,光電晶體T11 以及光電晶體T12 係可分別視為一光二極體,且光二極體可等效為一電阻,因此,光電晶體T11 以及光電晶體T12 係可分別等效為具有相同電阻值之等效電阻。Referring to FIG. 2 and FIG. 3 simultaneously, when the user touches the touch display panel 1, since the photonic crystal T 12 does not receive the external light source, the photonic crystal T 11 and the phototransistor T 12 can be viewed separately. It is a photodiode, and the photodiode can be equivalent to a resistor. Therefore, the photonic crystal T 11 and the phototransistor T 12 can be equivalent to equivalent resistances having the same resistance value, respectively.
觸控單元311係可依據第一偏壓線B11 傳送之一第一偏壓訊號、第二偏壓線B12 傳送之一第二偏壓訊號,而由光電晶體T11 以及光電晶體T12 輸出一觸控訊號A11 ,並將其傳送至讀取單元312。The touch unit 311 can transmit one of the first bias signals and the second bias line B 12 according to the first bias line B 11 to transmit a second bias signal, and the phototransistor T 11 and the phototransistor T 12 A touch signal A 11 is output and transmitted to the reading unit 312.
此時,當掃描線S11 傳送一高準位之掃描訊號而導通電晶體T13 時,觸控訊號A11 係可經由電晶體T13 、讀取線R11 傳送至運算放大器317之負輸入端。運算放大器317係依據觸控訊號A11 、參考訊號VREF 及電阻318輸出一感應輸出值VO1 ,並將其傳送至位置判斷電路34。At this time, when the scan line S 11 transmits a high-level scan signal to conduct the transistor T 13 , the touch signal A 11 can be transmitted to the negative input of the operational amplifier 317 via the transistor T 13 and the read line R 11 . end. The operational amplifier 317 outputs an induced output value V O1 according to the touch signal A 11 , the reference signal V REF and the resistor 318 , and transmits it to the position determining circuit 34 .
另外,當使用者沒有觸碰觸控式顯示面板1時,由於光電晶體T12 係接收到外部光源,因此,光電晶體T12 之等效電阻值係小於光電晶體T11 之等效電阻值。然而,熟知此一技藝者,當可依據上述之說明,得知運算放大器317係可依據觸控訊號A11 、參考訊號VREF 及電阻318輸出一感應輸出值VO2 ,並將其傳送至位置判斷電路34。藉此,位置判斷電路34係依據各交錯區域輸出不同的感應輸出值VO1 或VO2 判斷一觸碰位置。In addition, when the user does not touch the touch display panel 1, since the photo-electric crystal T 12 receives the external light source, the equivalent resistance value of the photo-crystal T 12 is smaller than the equivalent resistance value of the photo-crystal T 11 . However, it is known to those skilled in the art that, according to the above description, the operational amplifier 317 can output an induced output value V O2 according to the touch signal A 11 , the reference signal V REF and the resistor 318 , and transmit it to the position. The circuit 34 is judged. Thereby, the position judging circuit 34 determines a touch position based on the output of the different inductive output values V O1 or V O2 in the respective interleaved regions.
承上所述,本實施例係藉由將光電晶體T11 以遮光層21遮蔽,而使其等效電阻值不受外部光源變化而改變,光電晶體T12 係可依據外部光源變化而具有不同的等效電阻值,因而光電晶體T11 係可視為參考用的光電晶體。另外,藉由判斷光電晶體T11 、T12 的等效電阻值,亦可作為判斷使用者是否觸碰觸控式顯示面板1的依據之一。As described above, in the present embodiment, the photoelectric crystal T 11 is shielded by the light shielding layer 21 so that the equivalent resistance value is not changed by the external light source, and the photoelectric crystal T 12 can be different depending on the external light source. The equivalent resistance value, and thus the photonic crystal T 11 can be regarded as a reference photo-crystal. In addition, by determining the equivalent resistance value of the photodiodes T 11 and T 12 , it can also be used as one of the basis for determining whether the user touches the touch display panel 1 .
請參照圖4所示,本發明第二實施例之觸控式顯示面板包含一資料驅動電路32、一掃描驅動電路33、一位置判斷電路34、複數資料線D21 ~D2n 以及複數掃描線S21 ~S2m ,其中,資料驅動電路32、一掃描驅動電路33以及位置判斷電路34之元件特性及其功能已於第一實施例中詳細說明,於此不再贅述。Referring to FIG. 4, the touch display panel of the second embodiment of the present invention includes a data driving circuit 32, a scan driving circuit 33, a position determining circuit 34, a plurality of data lines D 21 to D 2n, and a plurality of scanning lines. S 21 ~ S 2m, wherein the data driving circuit 32, a scan driving circuit 33 and a position determination element characteristics and the functional circuit 34 of the first embodiment was described in detail in embodiment, is omitted herein.
掃描線S21 ~S2m 以及資料線D21 ~D2n 係為交錯設置,並形成複數區域。在各交錯區域係可設置相同之電路架構。為簡化說明,以下將以掃描線S21 、資料線D21 及其形成之交錯區域的電路架構為例說明。請參照圖5所示,本實施例之第二基板3’具有一觸控單元511以及一讀取單元512。Scan lines S 21 ~ S 2m and the data lines D 21 ~ D 2n disposed in a staggered line, and forming a plurality of regions. The same circuit architecture can be set in each interlaced area. For simplification of the description, the circuit structure of the scan line S 21 , the data line D 21 and the interleaved area formed therein will be exemplified below. As shown in FIG. 5 , the second substrate 3 ′ of the embodiment has a touch unit 511 and a reading unit 512 .
觸控單元511係與讀取單元512電性連接,並具有一第一光感測元件514以及一第二光感測元件515。於本實施例中,第一光感測元件514係可包含一光電晶體T21 ,第二光感測元件515係可包含一光電晶體T22 。The touch unit 511 is electrically connected to the reading unit 512 and has a first light sensing element 514 and a second light sensing element 515. In this embodiment, the first photo sensing element 514 can include a photo transistor T 21 , and the second photo sensing element 515 can include a photo transistor T 22 .
光電晶體T21 之一控制端與其一第二端電性連接。於本實施例中,光電晶體T21 係與部分之遮光層21相對設置(如圖1所示),亦即部分之遮光層21與光電晶體T21 於一投影方向係為重疊,以作為一參考用的光電晶體。另外,由於光電晶體T21 之控制端與其第二端電性連接,因此,光電晶體T21 係可視為一光二極體。One of the control ends of the photoelectric crystal T 21 is electrically connected to a second end thereof. In this embodiment, the optoelectronic crystal T 21 is disposed opposite to a portion of the light shielding layer 21 (as shown in FIG. 1 ), that is, a portion of the light shielding layer 21 and the phototransistor T 21 are overlapped in a projection direction as a Photoelectric crystal for reference. In addition, since the control end of the photo-electric crystal T 21 is electrically connected to the second end thereof, the photo-electric crystal T 21 can be regarded as a photodiode.
光電晶體T22 之一第一端與光電晶體T21 之一第二端電性連接,一第二端與一偏壓線B21 電性連接,一控制端與其一第二端電性連接。本實施例之光電晶體T22 係用以感測一外部光源。另外,由於光電晶體T22 之控制端與其第二端電性連接,因此,光電晶體T22 係可視為一光二極體。T phototransistor 22 one end of a first one of the photo transistor T 21 is electrically connected to a second end, a second end electrically connected to a B bias line 21, a control terminal and its second terminal electrically connected to a. The photoelectric crystal T 22 of this embodiment is for sensing an external light source. In addition, since the control end of the photo-electric crystal T 22 is electrically connected to the second end thereof, the photo-electric crystal T 22 can be regarded as a photodiode.
如圖5所示,讀取單元512與觸控單元511以及位置判斷電路34電性連接,並具有一讀取開關516、一運算放大器517及一電阻518。運算放大器517具有一正輸入端、一負輸入端以及一輸出端,其中,正輸入端接收一參考訊號VREF ,負輸入端經由一讀取線R21 與光電晶體T21 以及光電晶體T22 電性連接,讀取開關516係與光電晶體T21 之一第一端、掃描線S21 以及一偏壓線B31 電性連接,電阻518與運算放大器517之負輸入端及輸出端電性連接。於本實施例中,讀取開關516係可為一電晶體T23 。於實作上,讀取單元512係可設置於位置判斷電路34中。As shown in FIG. 5, the reading unit 512 is electrically connected to the touch unit 511 and the position determining circuit 34, and has a read switch 516, an operational amplifier 517 and a resistor 518. The operational amplifier 517 has a positive input terminal, a negative input terminal and an output terminal. The positive input terminal receives a reference signal V REF , and the negative input terminal passes through a read line R 21 and the photo transistor T 21 and the photo transistor T 22 . Electrically connected, the read switch 516 is electrically connected to one of the first ends of the optoelectronic crystal T 21 , the scan line S 21 and a bias line B 31 , and the negative input and output of the resistor 518 and the operational amplifier 517 are electrically connected. connection. In this embodiment, the read switch 516 can be a transistor T 23 . In practice, the reading unit 512 can be disposed in the position determining circuit 34.
本實施例之第二基板3’更包含一畫素單元513,其係鄰設於觸控單元511。畫素單元513具有一畫素開關519以及一畫素等效電容C21 。畫素開關519係與掃描線S21 、資料線D21 以及畫素等效電容C21 電性連接。於實施上,畫素等效電容C21 係可包含相互電性連接之一液晶電容CLC2 以及一儲存電容CST2 ,畫素開關519係可包含一電晶體T24 。然而,於本實施例中,使用者當可依據其需求,調整觸控式顯示面板中之觸控單元511的個數,並非限制各畫素單元513旁皆需設置觸控單元511,其例如可由複數個畫素單元513為一群組,而於每一個群組再設置一個相對應的觸控單元511。The second substrate 3 ′ of the embodiment further includes a pixel unit 513 , which is disposed adjacent to the touch unit 511 . The pixel unit 513 has a pixel switch 519 and a pixel equivalent capacitance C 21 . The pixel switching system 519 the scan line S 21, the pixel data line D 21 and the equivalent capacitance C 21 is electrically connected. In practice, the pixel equivalent capacitor C 21 may include a liquid crystal capacitor C LC2 electrically connected to each other and a storage capacitor C ST2 , and the pixel switch 519 may include a transistor T 24 . However, in this embodiment, the number of the touch units 511 in the touch display panel can be adjusted according to the requirements of the user, and the touch unit 511 is not required to be disposed next to each of the pixel units 513, for example, A plurality of pixel units 513 can be a group, and a corresponding touch unit 511 is further disposed in each group.
請同時參照圖4及圖5所示,當使用者觸碰觸控式顯示面板時,由於光電晶體T21 沒有接收到外部光源,又,光電晶體T21 以及光電晶體T22 係可分別視為一光二極體,且二極體可等效為一電阻,因此,光電晶體T21 以及光電晶體T22 係可分別等效為具有相同電阻值之等效電阻。Referring to FIG. 4 and FIG. 5 simultaneously, when the user touches the touch display panel, since the photo-crystal T 21 does not receive the external light source, the photo-crystal T 21 and the photo-crystal T 22 can be regarded as respectively. A photodiode, and the diode can be equivalent to a resistor. Therefore, the photonic crystal T 21 and the phototransistor T 22 can be equivalent to equivalent resistances having the same resistance value, respectively.
此時,當掃描線S21 傳送一高準位之掃描訊號而導通電晶體T23 時,偏壓線B31 傳送之一偏壓訊號Vb1 係可經由電晶體T23 傳送至觸控單元511。觸控單元511係可依據偏壓訊號Vb1 、偏壓線B21 係傳送之偏壓訊號Vb2 、光電晶體T21 以及光電晶體T22 輸出一觸控訊號A21 ,並將其傳送至讀取單元512。At this time, when the scan line S 21 transmits a high-level scan signal to conduct the transistor T 23 , the bias line B 31 transmits a bias signal V b1 to be transmitted to the touch unit 511 via the transistor T 23 . . The touch unit 511 can be based on the bias signal line V b1, based bias line B 21 of the transfer bias voltage signal V b2, photo transistor T 21 and T 22 outputs a phototransistor touch signal A 21, and transferred to the read Take unit 512.
觸控訊號A21 係可經讀取線R21 傳送至運算放大器517之負輸入端。運算放大器517係依據觸控訊號A21 、參考訊號VREF 及電阻518輸出一感應輸出值VO3 ,並將其傳送至位置判斷電路34。The touch signal A 21 can be transmitted to the negative input terminal of the operational amplifier 517 via the read line R 21 . The operational amplifier 517 outputs an induced output value V O3 according to the touch signal A 21 , the reference signal V REF and the resistor 518 , and transmits it to the position determining circuit 34 .
另外,當使用者沒有觸碰觸控式顯示面板時,由於光電晶體T22 係接收到外部光源,因此,光電晶體T22 之等效電阻值係小於光電晶體T21 之等效電阻值。然而,熟知此一技藝者,當可依據上述之說明,得知運算放大器517係可依據觸控訊號A21 、參考訊號及電阻518輸出一感應輸出值VO4 ,並將其傳送至位置判斷電路34。藉此,位置判斷電路34係依據各交錯區域輸出不同的感應輸出值VO3 或VO4 判斷一觸碰位置。In addition, when the user does not touch the touch display panel, since the photo transistor T 22 receives the external light source, the equivalent resistance value of the photo transistor T 22 is smaller than the equivalent resistance value of the photo transistor T 21 . However, it is known to those skilled in the art that, according to the above description, the operational amplifier 517 can output an induced output value V O4 according to the touch signal A 21 , the reference signal and the resistor 518 , and transmit it to the position determining circuit. 34. Thereby, the position judging circuit 34 determines a touch position based on the output of the different inductive output values V O3 or V O4 in the respective interleaved regions.
請同時參考圖5及圖6所示,其中圖6為掃描線S21 與偏壓線B21 傳送訊號位準之時序圖。掃描線S21 分別傳送Vgon 與Vgoff 以分別開啟或關閉電晶體T24 與T23 ,而偏壓線B21 則分別傳送偏壓訊號Vb2 與參考訊號VREF ,而其他掃描線S22 ~S2m 與偏壓線B22 ~B2m 則循序切換訊號位準。Please refer to FIG. 5 and FIG. 6 at the same time, wherein FIG. 6 is a timing diagram of the signal level transmitted by the scan line S 21 and the bias line B 21 . The scan line S 21 transmits V gon and V goff respectively to turn on or off the transistors T 24 and T 23 , respectively, and the bias line B 21 respectively transmits the bias signal V b2 and the reference signal V REF , and the other scan lines S 22 ~S 2m and bias lines B 22 to B 2m sequentially switch signal levels.
承上所述,本實施例係藉由將光電晶體T21 以遮光層21遮蔽,而使其等效電阻值不受外部光源變化而改變,光電晶體T22 係可依據外部光源變化而具有不同的等效電阻值,因而光電晶體T21 係可視為參考用的光電晶體。另外,藉由判斷光電晶體T21 、T22 的等效電阻值,亦可作為判斷使用者是否觸碰觸控式顯示面板的依據。As described above, in the present embodiment, the photoelectric crystal T 21 is shielded by the light shielding layer 21 so that the equivalent resistance value is not changed by the external light source, and the photoelectric crystal T 22 can be different depending on the external light source. The equivalent resistance value, and thus the photonic crystal T 21 can be regarded as a reference photo-crystal. In addition, by determining the equivalent resistance values of the photoelectric crystals T 21 and T 22 , it can also be used as a basis for determining whether the user touches the touch display panel.
另外,當掃描線S21 傳送高準位之掃描訊號時,偏壓線B22 ~B2m 係分別傳送一參考訊號VREF ,又,運算放大器517具有虛短路的特性,而使負輸入端具有參考訊號VREF 之電壓準位,因此,光電晶體T22 之第一端及第二端具有相同之電壓準位,而使光電晶體T22 為截止狀態,使得光電晶體T22 不會有漏電流產生,以準確地判斷觸碰位置。In addition, when the scan line S 21 transmits the scan signal of the high level, the bias lines B 22 to B 2m respectively transmit a reference signal V REF , and the operational amplifier 517 has the characteristics of a virtual short circuit, and the negative input has a negative input terminal. Referring to the voltage level of the signal V REF , therefore, the first end and the second end of the photo-electric crystal T 22 have the same voltage level, and the photo-crystal T 22 is turned off, so that the photo-crystal T 22 does not have leakage current. Generated to accurately determine the touch position.
另外,請再參照圖4所示,本實施例之第二基板3’更具有複數讀取線R21 ~R2n ,其中,同一條讀取線,例如是讀取線R21 ,係可與複數讀取開關516以及一個運算放大器517電性連接,運算放大器517係可依據各讀取開關516傳送之觸控訊號輸出感應輸出值。於本實施例中,並無限制讀取開關516需與運算放大器517具有相同的個數。Also, Please refer to FIG. 4, a second embodiment of the present embodiment substrate 3 'has a more complex read line R 21 ~ R 2n, wherein, with a read line, for example, read line R 21, may be based The plurality of read switches 516 and one of the operational amplifiers 517 are electrically connected, and the operational amplifiers 517 can output the sensed output values according to the touch signals transmitted by the read switches 516. In the present embodiment, the read switch 516 is not limited to have the same number as the operational amplifier 517.
請參照圖7所示,本發明較佳實施例之一種觸控式顯示裝置8係包含一背光模組6以及一觸控式顯示面板7。其中,背光模組6與顯示模組7相對設置。Referring to FIG. 7 , a touch display device 8 according to a preferred embodiment of the present invention includes a backlight module 6 and a touch display panel 7 . The backlight module 6 is disposed opposite to the display module 7.
一般而言,背光模組6依據光源位置不同,可區分為直下式及側光式,於本實施例中,背光模組6係以直下式為例說明。背光模組6係包含一光源61、一擴散板62、至少一光學膜片組63以及一背板64。其中,光源61係設置於背板64與擴散板62之間。In general, the backlight module 6 can be divided into a direct type and an edge type according to the position of the light source. In the embodiment, the backlight module 6 is described by taking a direct type as an example. The backlight module 6 includes a light source 61, a diffusion plate 62, at least one optical film group 63, and a back plate 64. The light source 61 is disposed between the back plate 64 and the diffusion plate 62.
當光源61產生一光線L1時,其係依序通過擴散板62以及光學膜片組63,以提供一均勻之光線L1至觸控式顯示面板7。When the light source 61 generates a light L1, it passes through the diffusion plate 62 and the optical film group 63 in order to provide a uniform light L1 to the touch display panel 7.
於本實施例中,觸控式顯示面板7係可為第一實施例所述之觸控式顯示面板1或第二實施例所述之觸控式顯示面板,其功能、電路及作動方式已於先前實施例中所敘述,在此不再贅述。In this embodiment, the touch display panel 7 can be the touch display panel 1 of the first embodiment or the touch display panel of the second embodiment, and the functions, circuits, and actuation modes thereof have been As described in the previous embodiments, no further details are provided herein.
請參照圖8所示,本發明較佳實施例之一種觸控式顯示面板的控制方法係包含步驟W11至步驟W13。其中,觸控式顯示面板的控制方法係可應用於第一實施例所述之觸控式顯示面板1或第二實施例所述之觸控式顯示面板。Referring to FIG. 8 , a control method of a touch display panel according to a preferred embodiment of the present invention includes steps W11 to W13 . The control method of the touch display panel can be applied to the touch display panel 1 of the first embodiment or the touch display panel of the second embodiment.
步驟W11,係由第二光感測元件依據一外部光源變化,而使觸控單元輸出一觸控訊號。步驟W12,係由讀取單元依據觸控訊號輸出一感應輸出值。步驟W13,係由一位置判斷電路依據該感應輸出值判斷一觸碰位置。In step W11, the second light sensing component changes the external light source to cause the touch unit to output a touch signal. In step W12, the reading unit outputs an inductive output value according to the touch signal. In step W13, a position determining circuit determines a touch position according to the sensing output value.
其中詳細的控制方式,於上述實施例中已一併詳述,故於此不再加以贅述。另外,於本實施例中,觸控式顯示裝置的控制方法係與上述之電晶體基板的控制方法相同,於此不再贅述。The detailed control method has been described in detail in the above embodiments, and thus will not be further described herein. In addition, in the present embodiment, the control method of the touch display device is the same as the control method of the above-described transistor substrate, and details are not described herein again.
綜上所述,因依據本發明之觸控式顯示面板、觸控式顯示裝置及其控制方法,其係藉由將第一光感測元件以遮光層遮蔽,使其成為一參考用之光感測元件,並藉由第二光感測元件感測一外部光源,當使用者直接以手指或以觸控筆碰觸觸控式顯示裝置時,第二光感測元件感測到不同的外部光源亮度,而使觸控式顯示裝置能夠較準確的依據外部光源變化輸出觸控訊號,以藉由後端的位置判斷電路可以得知使用者觸碰的位置。In summary, the touch display panel, the touch display device, and the control method thereof according to the present invention are shielded by a light shielding layer to make the first light sensing element a reference light. Sensing component, and sensing an external light source by the second light sensing component, when the user directly touches the touch display device with a finger or a stylus, the second light sensing component senses different The brightness of the external light source enables the touch display device to output the touch signal accurately according to the change of the external light source, so that the position of the user touch can be known by the position determining circuit of the back end.
以上所述僅為舉例性,而非為限制性者。任何未脫離本發明之精神與範疇,而對其進行之等效修改或變更,均應包含於後附之申請專利範圍中。The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.
1、7...觸控式顯示面板1, 7. . . Touch display panel
2...第一基板2. . . First substrate
21...遮光層twenty one. . . Shading layer
22...彩色濾光層twenty two. . . Color filter layer
23...保護層twenty three. . . The protective layer
3、3’...第二基板3, 3’. . . Second substrate
311、511...觸控單元311, 511. . . Touch unit
312、512...讀取單元312, 512. . . Reading unit
313、513...畫素單元313, 513. . . Pixel unit
314、514...第一光感測元件314, 514. . . First light sensing element
315、515...第二光感測元件315, 515. . . Second light sensing element
316、516...讀取開關316, 516. . . Read switch
317、517...運算放大器317, 517. . . Operational Amplifier
318、518...電阻318, 518. . . resistance
319、519...畫素開關319, 519. . . Pixel switch
32...資料驅動電路32. . . Data drive circuit
33...掃描驅動電路33. . . Scan drive circuit
34...位置判斷電路34. . . Position judgment circuit
4...液晶層4. . . Liquid crystal layer
6...背光模組6. . . Backlight module
61...光源61. . . light source
62...擴散板62. . . Diffuser
63...光學膜片組63. . . Optical film set
64...背板64. . . Backplane
8...觸控式顯示裝置8. . . Touch display device
A11 、A21 ...觸控訊號A 11 , A 21 . . . Touch signal
B11 、B12 、B21 、B31 ...偏壓線B 11 , B 12 , B 21 , B 31 . . . Bias line
C11 、C21 ...畫素等效電容C 11 , C 21 . . . Pixel equivalent capacitance
CLC1 、CLC2 ...液晶電容C LC1 , C LC2 . . . Liquid crystal capacitor
CST1 、CST2 ...儲存電容C ST1 , C ST2 . . . Storage capacitor
D11 ~D1n 、D21 ~D2n ...資料線D 11 to D 1n , D 21 to D 2n . . . Data line
L1...光線L1. . . Light
R11 ~R1n 、R21 ~R2n ...讀取線R 11 to R 1n and R 21 to R 2n . . . Read line
S11 ~S1m 、S21 ~S2m ...掃描線S 11 to S 1m and S 21 to S 2m . . . Scanning line
T11 、T12 、T13 、T14 、T21 、T22 、T23 、T24 ...電晶體T 11 , T 12 , T 13 , T 14 , T 21 , T 22 , T 23 , T 24 . . . Transistor
VREF ...參考訊號V REF . . . Reference signal
W11~W13...控制方法的步驟W11~W13. . . Control method steps
圖1為本發明第一實施例之觸控式顯示面板的示意圖;1 is a schematic view of a touch display panel according to a first embodiment of the present invention;
圖2為圖1中第二基板的電路架構示意圖;2 is a schematic circuit diagram of a second substrate of FIG. 1;
圖3為圖2中觸控單元、讀取單元及畫素單元的示意圖;3 is a schematic diagram of the touch unit, the reading unit, and the pixel unit of FIG. 2;
圖4為本發明第二實施例之第二基板的電路架構示意圖;4 is a schematic circuit diagram of a second substrate according to a second embodiment of the present invention;
圖5為圖4中觸控單元、讀取單元及畫素單元的示意圖;5 is a schematic diagram of the touch unit, the reading unit, and the pixel unit of FIG. 4;
圖6為圖4及圖5中掃描線與偏壓線傳送訊號位準之時序圖;6 is a timing diagram of the signal level of the scan line and the bias line in FIG. 4 and FIG. 5;
圖7為本發明較佳實施例之觸控式顯示裝置的示意圖;以及FIG. 7 is a schematic diagram of a touch display device according to a preferred embodiment of the present invention;
圖8為本發明較佳實施例之觸控式顯示面板的控制方法的步驟流程圖。FIG. 8 is a flow chart showing the steps of a method for controlling a touch display panel according to a preferred embodiment of the present invention.
311...觸控單元311. . . Touch unit
312...讀取單元312. . . Reading unit
313...畫素單元313. . . Pixel unit
314...第一光感測元件314. . . First light sensing element
315...第二光感測元件315. . . Second light sensing element
316...讀取開關316. . . Read switch
317...運算放大器317. . . Operational Amplifier
318...電阻318. . . resistance
319...畫素開關319. . . Pixel switch
A11 ...觸控訊號A 11 . . . Touch signal
B11 、B12 ...偏壓線B 11 , B 12 . . . Bias line
C11 ...畫素等效電容C 11 . . . Pixel equivalent capacitance
CLC1 ...液晶電容C LC1 . . . Liquid crystal capacitor
CST1 ...儲存電容C ST1 . . . Storage capacitor
D11 ...資料線D 11 . . . Data line
R11 ...讀取線R 11 . . . Read line
S11 ...掃描線S 11 . . . Scanning line
VREF ...參考訊號V REF . . . Reference signal
T11 、T12 、T13 、T14 ...電晶體T 11 , T 12 , T 13 , T 14 . . . Transistor
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TW507183B (en) * | 2001-07-09 | 2002-10-21 | Au Optronics Corp | LCD timing controller built with touch panel control circuit |
TWI278690B (en) * | 2004-06-25 | 2007-04-11 | Hannstar Display Corp | Input-sensor-integrated liquid crystal display panel |
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TW507183B (en) * | 2001-07-09 | 2002-10-21 | Au Optronics Corp | LCD timing controller built with touch panel control circuit |
US7268771B2 (en) * | 2001-09-25 | 2007-09-11 | Taiguen Technology (Shen-Zhen) Co., Ltd. | Panel display screen with touch control function |
US7312837B2 (en) * | 2003-10-31 | 2007-12-25 | Lg. Philips Lcd Co., Ltd. | Liquid crystal display device with touch panel |
TWI278690B (en) * | 2004-06-25 | 2007-04-11 | Hannstar Display Corp | Input-sensor-integrated liquid crystal display panel |
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