201126236 六、發明說明： 【發明所屬之技術領域】 本發明係有關於-種電容觸控彳貞測制於液晶顯禅CD) 面板。特別是_液晶顯示面板之顯示電極當作電容觸控感測 器之偵測電極。本發明無須增加額外之電極。 【先前技術】 觸控面板已廣用於許多電子產品之輸入元件。尤其是觸控 面板與液晶顯示面板結合在多種應用上變成流行。一般而言， 具，觸控感測功能之液晶顯示面板係以附加觸控面板於液晶 顯不面板而得。用此技術之先前技術如授予Ming_shen Sun之 美國專利第6, 538, 706 B2號案、授予Y〇ng ik Bang等人之美 國專利第7, 557, 869 B2號案、授予Yun Che〇1 Je〇ng等人之 ^專利第7,5〇8,461 B2號案。附加觸控面板於減顯示面板 思s胃加上一塊觸控面板當作附件在液晶顯示面板上。除了增加 成本，此技術產生增加整個面板之厚度及重量，及導致更多光 之吸收及反射之缺點。 前述先前技術為電阻型觸控面板。在電阻型觸控面板有兩 層電極。觸控面板内多層電極導致額外之光吸收及反射而液晶 顯示面板之性能將降低。中國專利第ZL200620013292.3號案 使用之技術可解決前述之缺點。此技術中，一層透明導電膜^ ，鍍在液晶顯示面板之上玻璃基板上當作觸控偵測電極。此先 前技術為電容型觸控偵測，且僅需一層導電膜取代電阻型觸控 偵測之兩層導電膜。 雖然此先前技術可減少液晶顯示面板之厚度及重量，但是 透明導電膜仍能導致光被吸收及反射，並且製造成本高於無觸 控偵測器之傳統LCD面板。最好將觸控偵測電極嵌入液晶顯示 面板之上玻璃基板内以避免額外之光吸收及反射。 201126236 板間。在基^^二基板。液晶被注入兩片基 ^知電極之結構_控_電極之結構柯，且製造成本較 人的在許夠控面板触晶顯示面板結 。ifΐ十刀重要。為了得到上述功能，較好的方法是利用 』不電極來當作觸控侧電極’而不要增加額外的構造。 第1目為傳、统沒有觸控债測功能之液晶顯示裝置之 ^。第1圖中，此裝置包含兩個玻璃基板：一片上基板“及 一片下基板12。上顯示電極130、13卜132、133鍍於上基板 一而下4示電極14則鑛於下基板12。每一上顯示電極與下顯 示電極14形成一個像素(pixei or segment)。一層液晶層15 /主入上基板11及下基板12之間。此液晶顯示面板包含下偏光 片（P〇lariZer) Π及上偏光片16及背光板（baekligh〇 18。 第1圖中’因為上基板11及下基板12間之距離很小導致 上顯示電極與下顯示電極間之電容很大。如果直接利用上顯示 電極直接作為觸控债測電極’靈敏度會很低而不易得到正確之 ^測。當執行顯示功能時，交流電壓波形必需加於兩個電極。 若同一上顯示電極被用作觸控偵測器，觸控偵測器之感測必為 交流電壓波形所影響。為解決此問題，必需在顯示功能及觸控 功能間用分時(multiplexing)方式解決。 工 【發明内容】 本發明之目的在提供一種有觸控感測功能之液晶顯示面 201126236 板 本發明之次一目砧4 顯示：同製程之有觸控二= 顯 示面i發 日月 日 示面板，其中顯示功器有Γ干控擾感最ΐ力能之液晶顯 控感播本t月之第一觀點在教導一種透明型觸 及一之系統，包含一個透明型液晶顯示面板 板’一個上電極陣列之日日顯伽不面板包含一片上基板，一片下基 下偏光片，-層ϋ，’ 極陣列，—層上偏光片，一層 器，-個顯示控制“二:f板，控制系統包含-個微處理 測電路，—個蔣W —個顯不驅動電路陣列，-個觸控感 列；觸控残短路之對應至下電極之傳輸閘極陣 路及顯示測物體或手指接近電極；顯示控制電 極用以在液晶顯_ 及個下電 下電極與器;在執行觸控功能時，上電極及 被短路而其功^單及下電極 被短路而i 賴及下電極之電容 购電路不會對觸控感測功能形成干播Β. Γ 201126236 /本發明之[觀點在教導—_控_與就顯示 =:ί系統為反射型，且背光板為-層反“ 以i發^另一觀點在教導一種觸控感測與液晶顯示共構 之H、中液晶顯不系統為混合型液晶顯示系統，亦即 具柿控功能與不綱控㈣麵示雜組成。在無觸 域可使用共用下電極，在有觸控感測功能“ 域使用電極對(electrode pair)。 【實施方式】 ηίΐΓ力以上及其他目的及優點可參考以下之參照圖示 及竑佳實施例之說明而更易完全瞭解。 第2圖為可用於本發明之透明型液晶顯示⑽)面板。第 ^圖m液晶顯示面板具有兩片基板：上基板21及下基板 之間^入一層液晶25。一個上顯示電極陣列 以知32及233鍍在上基板21上。一個下顯示電極陣 β 4 & 、242及243鍍在下基板22上。上顯示電極之一 之下顯示電極24Q係用以顯示液晶顯示面板之一個 f f (”1Xe ) °在上基板21之上’有一層上偏光片26，在下 ft之上’有一層下偏光片27。-層背光板28在下偏光 月27之下。 f圖^可用於本發明之反射型液晶顯示⑽)面板。反 2Γ ^不面板之結構與透明型液晶顯示面板相似。但反射 ί 面板沒有下偏光片，而背光板為反射板38所取 :本發明可應用於反射型及透明型液晶顯示面板而無須電路 之修正。 士發明之目的在以相同之電極供作顯示功能之電極及觸 卫1此之電極。為達成上述目的，可在顯示功能之電極及觸控 201126236 功能之電極之間使用分時（time multiplexing)技術。 顯示功能之電極及觸控功能之電極之間使用之分時技術 可用第4圖之波形說明。緣於第4圖之波形41、42、及43與 第2圖及第3圖之電極相對應。波形41為加於上電極之電壓， 波形42為加於下電極之電壓，波形43為加於上電極及 之相對電壓。 如第4圖所示’有兩種時間間隔T1及^。於時間τ丨時， 系統執行顯示魏。而在時間Τ2時，纟域賴控功能。201126236 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a panel for measuring capacitive touch screens. In particular, the display electrode of the liquid crystal display panel serves as a detecting electrode of the capacitive touch sensor. The invention does not require the addition of additional electrodes. [Prior Art] Touch panels have been widely used as input components of many electronic products. In particular, the combination of a touch panel and a liquid crystal display panel has become popular in various applications. In general, a liquid crystal display panel having a touch sensing function is obtained by attaching a touch panel to a liquid crystal display panel. U.S. Patent No. 6,538,706 B2 to Ming_shen Sun, U.S. Patent No. 7,557,869 B2 to Y〇ng ik Bang et al., issued to Yun Che〇1 Je 〇ng et al. patent No. 7, 5, 8, 461 B2. Additional touch panel on the lower display panel Think of the stomach and a touch panel as an attachment on the LCD panel. In addition to increasing cost, this technique creates the disadvantage of increasing the thickness and weight of the entire panel and resulting in more absorption and reflection of light. The foregoing prior art is a resistive touch panel. There are two layers of electrodes in the resistive touch panel. The multilayer electrodes in the touch panel cause additional light absorption and reflection and the performance of the liquid crystal display panel is reduced. The technology used in the Chinese Patent No. ZL200620013292.3 can solve the aforementioned shortcomings. In this technology, a transparent conductive film ^ is plated on the glass substrate above the liquid crystal display panel as a touch detection electrode. The prior art is a capacitive touch detection, and only one conductive film is required to replace the two conductive films of the resistive touch detection. Although this prior art can reduce the thickness and weight of the liquid crystal display panel, the transparent conductive film can still cause light to be absorbed and reflected, and the manufacturing cost is higher than that of the conventional LCD panel without the touch detector. It is preferable to embed the touch detection electrode in the glass substrate above the liquid crystal display panel to avoid additional light absorption and reflection. 201126236 board room. In the base ^ 2 substrate. The liquid crystal is injected into the structure of the two basic electrodes, the structure of the control electrode, and the manufacturing cost is relatively high in the control panel of the touch panel. If ΐ ten knife is important. In order to obtain the above functions, it is preferable to use "no electrode as the touch side electrode" without adding an extra structure. The first item is a liquid crystal display device that has no touch and debt measurement function. In Fig. 1, the device comprises two glass substrates: an upper substrate "and a lower substrate 12. The upper display electrodes 130, 13 132, 133 are plated on the upper substrate and the lower 4 electrodes 14 are deposited on the lower substrate 12. Each upper display electrode forms a pixel (pixei or segment) with the lower display electrode 14. A liquid crystal layer 15 is mainly connected between the upper substrate 11 and the lower substrate 12. The liquid crystal display panel includes a lower polarizer (P〇lariZer) Π and upper polarizer 16 and backlight (baekligh〇18. In Fig. 1 'Because the distance between the upper substrate 11 and the lower substrate 12 is small, the capacitance between the upper display electrode and the lower display electrode is large. If directly used The display electrode directly acts as a touch-weighing electrode. The sensitivity is low and it is not easy to get the correct measurement. When performing the display function, the AC voltage waveform must be applied to the two electrodes. If the same display electrode is used as the touch detection The sensing of the touch detector must be affected by the AC voltage waveform. To solve this problem, it is necessary to solve the problem between the display function and the touch function by using a multiplexing method. Providing a liquid crystal display surface with touch sensing function 201126236 The second item of anvil 4 of the present invention shows: the same process has a touch two = display surface i date sun and day display panel, wherein the display device has dry control The first viewpoint of the most sensible liquid crystal display control broadcast t-month is to teach a transparent touch system, including a transparent liquid crystal display panel board. An upper substrate, a lower base polarizer, a layer of germanium, a 'pole array, a layer of polarizers, a layer of devices, a display control "two: f board, the control system contains - a micro-processing circuit, a Jiang W - a display circuit array, a touch sense; touch residual short circuit corresponding to the lower electrode of the transmission gate array and display object or finger proximity electrode; display control electrode for liquid crystal display _ And the lower electrode and the lower electrode; when the touch function is performed, the upper electrode is short-circuited, and the power and the lower electrode are short-circuited, and the capacitor purchasing circuit of the lower electrode does not form a touch sensing function.干播Β. Γ 201126236 /本发[The point of view is to teach - _ control _ and display = = ί system is reflective, and the backlight is - layer reverse "I send another point of view to teach a touch sensing and liquid crystal display co-construction H, The liquid crystal display system is a hybrid liquid crystal display system, that is, it has a persimmon control function and a non-standard control (four) surface display heterogeneous composition. In the non-contact area, a common lower electrode can be used, and in the touch sensing function, the field uses the electrode pair. [Embodiment] [Embodiment] The above and other objects and advantages can be more fully understood by referring to the following description of the drawings and the description of the preferred embodiments. Fig. 2 is a transparent liquid crystal display (10) which can be used in the present invention. )panel. The liquid crystal display panel has two substrates: a liquid crystal 25 is interposed between the upper substrate 21 and the lower substrate. An upper display electrode array is known to be plated on the upper substrate 21 at 32 and 233. A lower display electrode array β 4 & 242 and 243 is plated on the lower substrate 22. The display electrode 24Q under one of the upper display electrodes is used to display a ff ("1Xe) of the liquid crystal display panel. There is an upper polarizer 26 on the upper substrate 21 and a lower polarizer 27 on the lower ft. The layer backlight panel 28 is below the lower polarizing moon 27. f Fig. 2 can be used for the reflective liquid crystal display (10) panel of the present invention. The structure of the reverse panel is similar to that of the transparent liquid crystal display panel, but the reflection panel is not under The polarizing plate is used as the reflecting plate 38. The present invention can be applied to the reflective and transparent liquid crystal display panels without the need for circuit correction. The purpose of the invention is to provide electrodes and touches for display functions using the same electrodes. 1 electrode. To achieve the above purpose, time multiplexing technology can be used between the display function electrode and the electrode of the touch function 201126236. The time between the display function electrode and the touch function electrode The technique can be illustrated by the waveform of Figure 4. The waveforms 41, 42, and 43 of Figure 4 correspond to the electrodes of Figures 2 and 3. Waveform 41 is the voltage applied to the upper electrode, and waveform 42 is added to Power off The voltage, waveform 43 is applied to the upper electrode and the relative voltage. As shown in Figure 4, there are two time intervals T1 and ^. At time τ丨, the system performs display Wei. At time Τ2, the domain Lai control function.
在時間τι時，上電極及下電極連接於LCD顯示驅動電路。 在此時間間隔時’不能執行觸控量測程序，因為顯示波形 擾將導致觸控偵測錯誤。 在時間T2時，系統將執行觸控電路功能，上電極及下電 極將當作觸控侧ϋ。為了避絲自顯示電路之波形干擾，上 電極及下電極必須自顯轉動電路靖。所有上電極及下電極 皆連接至觸控侧電路。此外，在時間Τ2時，每一上電極與 相應之下電極形成短路，在此時間此二電極有相同之電壓，^ 波形41及42。第4圖中’在時間Τ2軸合自觸控 偵形在ΐ顯示為方波，但亦可為其他波形，視所用 ί 工^電路而疋。無論在時間Τ2時耦合自觸控偵測電路 …国下ί極之電壓?形為何’上、下電極間之電壓為零，如 變TH)U-43^不。且耗合自觸控_電路之波形不會影 ΐ μ 。軸在上電極及減之下f極間有大電 Ϊ如ΐ個ΪΪ極，而上、下電極在時間T2時其功能 控偵測桃之靈ΪΪ續赌制電之㈣树，亦不影響觸 於兩個顯示電極間之“必以任:工 201126236 時對 用:說Λ一^ 電壓是無直流2:之= 壓為加於上、下電極間之電壓。此 為顯示-個映像點在「0FF」狀態，上、 相對電難要小以獲得良好之對比品f。簡單間之 顯不時間T1時加零電壓於上、下電極。 ^方案為在 第5圖中波形51為加於上電極is第5圖。 =3 了?？3為加於上、下電極間之^ ¾ 或「0FF」狀態之顯示對比十分良好。職為零。故「〇N」 在「OFF」狀態，在顯示時間Ή時，加於 電壓不必為零電壓。在第6财，—個不為零間之 間T1時加於上電極及下·。因為兩個電 不時 兩個電極間之龍鮮，如第6圖之_ 63所示樣之波形， 本發明在觸控偵測期間，上電極必須與 ，傳統LCD 一樣分享一個共用下電極第= 及第3圖作詳細描述。 傅知在第2圖 第7圖為顯示本發明技術之電路圓。第7 ， 摘測器之液晶顯示系統7包含微處理器71，顯示控制/電工 觸控感測電路73，顯示驅動電路陣列74Q至7 ’ 750謂，上電極陣雜謂，下電極^ 列 包含上電極及下電極之f極對可用以供作顯示功 感測手指或物體接近此電極。以單一電極； ==時技術。微處產電生=== ，控制電路72產生控制訊號給顯示驅動電 ，^員不驅動電路用以驅動電鋪執行顯示功能。觸控感= 路73用以感測手指或物體接近此電極。在顯示時間打期門 電極760及770由顯示控制電路72控制以連接到顯示驅動曰電 201126236 路740之波形產生器。傳輸閘75〇被斷路(〇FF)且觸控感測電 路73之輸入偏壓浮動。在此狀態下，電極僅受顯示控制電路 之影響而不受觸控感測電路之影響。 於觸控感測時間T2期間，電極760及770之功能為觸控 偵測而不連接到顯示驅動電路74〇之波形產生器。在此時間， ，輸閘750接通(〇N)使電極760及770短路。兩個電極乂功 ，有如一個電極而兩個電極間之電容對觸控偵測功能之運作 沒f影響。因為顯示驅動電路不連接到電極而且兩個電極間之At time τι, the upper electrode and the lower electrode are connected to the LCD display driving circuit. At this time interval, the touch measurement procedure cannot be performed because the display waveform disturbance will cause a touch detection error. At time T2, the system will perform the touch circuit function, and the upper and lower electrodes will be used as the touch side. In order to avoid the waveform interference from the display circuit, the upper electrode and the lower electrode must self-display the rotation circuit. All of the upper and lower electrodes are connected to the touch side circuit. In addition, at time Τ2, each of the upper electrodes forms a short circuit with the corresponding lower electrode, at which time the two electrodes have the same voltage, waveforms 41 and 42. In Fig. 4, in the time Τ 2 axis, the self-touching shape is displayed as a square wave, but it can also be other waveforms, depending on the circuit used. No matter when the time is Τ2, the voltage is coupled to the touch detection circuit. Why is the voltage between the upper and lower electrodes zero, such as TH? U-43^ No. And the waveform that is consumed by the touch_circuit does not affect μ. The axis has a large electric current between the upper electrode and the lower f pole, such as a bungee pole, and the upper and lower electrodes function to detect the peach spirit in the T2 at time T2, and does not affect the (four) tree. Touching between the two display electrodes must be used: when the 201126236 is used: say that the voltage is no DC 2: the voltage is the voltage applied between the upper and lower electrodes. This is the display-image point In the "0FF" state, the upper and the opposite electric difficulties are small to obtain a good contrast product f. When the time is T1, zero voltage is applied to the upper and lower electrodes. The scheme is that the waveform 51 in Fig. 5 is applied to the upper electrode is Fig. 5. =3?? 3 is a good contrast for the display of the ^3⁄4 or "0FF" state between the upper and lower electrodes. The position is zero. Therefore, "〇N" is in the "OFF" state, and when the time Ή is displayed, the voltage applied to the voltage does not have to be zero voltage. In the sixth fiscal year, the T1 is added to the upper electrode and the lower side. Because the two electrodes are between the two electrodes from time to time, such as the waveform shown in FIG. 6 to 63, during the touch detection, the upper electrode must share a common lower electrode as the conventional LCD. = and Figure 3 is described in detail. Fu Zhi in Fig. 2 Fig. 7 is a circuit circle showing the technique of the present invention. 7. The liquid crystal display system 7 of the extractor comprises a microprocessor 71, a display control/electrical touch sensing circuit 73, and a display driving circuit array 74Q to 7' 750, the upper electrode array is said to be, and the lower electrode column comprises The f-pole pairs of the upper and lower electrodes can be used to display a work-sensing finger or object close to the electrode. With a single electrode; == technology. The micro-production electro-generation ===, the control circuit 72 generates a control signal to the display drive power, and the non-driver circuit is used to drive the electric shop to perform the display function. Touch Sense = Road 73 is used to sense the proximity of a finger or object to the electrode. The display gate electrodes 760 and 770 are controlled by the display control circuit 72 to be coupled to the waveform generator of the display drive power 201126236 path 740. The transfer gate 75 turns off (〇FF) and the input bias of the touch sensing circuit 73 floats. In this state, the electrodes are only affected by the display control circuit and are not affected by the touch sensing circuit. During the touch sensing time T2, the functions of the electrodes 760 and 770 are touch detection and are not connected to the waveform driver of the display driving circuit 74. At this time, the switch 750 is turned "on" (短路N) to short the electrodes 760 and 770. The two electrodes work like an electrode and the capacitance between the two electrodes has no effect on the operation of the touch detection function. Because the display driver circuit is not connected to the electrode and between the two electrodes
電容對觸控偵測沒有影響，電路7可以正常執行觸控偵測工 作0 、 sl 公開之文獻有許多種電容式物體接近偵測器。大多數電容 j物體接近偵測器皆可當作本發明之觸控感測電路。授予林緒 德（本發明之發明人）之美國專利第7,023,221 B1號案、中華 民國專利第1 259908號案、歐盟專利第1791260 B1號案、中 華人民共和國專利第ZL 200510080231·9號案及日本利第 4365817號案為一種電容式物體接近偵測器，亦可當作本發明 之觸控感測電路。在本發明中，在觸控感測電路内僅需一列Ν 個偵測器’此觸控感測電路顯示於第8圖。此電路之運作詳述 ，美國專利第7,023,221 Β1號案。在此，將較詳盡地解說觸^ 感測電路之運作與LCD顯示功能間之運作。當第8圖之電路^ 用於第7圖當侧控翻電路73時，，觸控感測電路之運作 ，第7圖之微處理器71所控制。第8圖之微處理器8〇6可與 第7圖之微處理器71結合成一個微處理器。否則微處理器 必須，微處理器71同步工作，以保證觸控感測功能與^⑶顯 不功能同步工作。如第7圖所示，電極760、761至76N分別 ，接至觸控感測電路之輸入1〇、Η至IN。當觸控感測時間T2 』間’所有電極依序被傳輸閘極CNTC〇、CNTC1至CNTCN掃描， 如第8圖所示。於LCD顯示時間T1期間，觸控感測電路之田輪 入將由第8圖之傳輸閘極CNTC0、CNTC1至CNTCN開路而自^ 9 201126236 不示二運之作感獅器_之賴路將 之唯ί 技J之描述’本發明顯示面板與傳統之顯示面板 右尤Π 下電極之構造。本發明技術與傳統技術之製程沒 傳^顯本ϊϋί液晶顯示面板之製造沒有增加成本。同時與 傳 === 87、而製成如第9圖所不。第9圖中，上電極85、86、 上雷搞^下ί極95、96、97、98扮演顯示及觸控雙重功能。 電極8卜82、83、84及共用下電極80僅能用作顯示電極。 述本體實施例之詳述，係希望能更加清楚描 氺itϋ特徵與精神，而並非以上述所揭露的較佳具體實伽 箱扑微發明之辦加以限制。相反的’其目的是希望能涵蓋I 良及具相等性的安排於本發明所欲申請之專利範疇内。 【圖式簡單說明】 圖 第 圖 認:圖為傳統沒有觸控細功能之液晶顯示裝置(LCD)之斷面 圖為可用於本發明之透視型液晶顯示裝置(LCD)之斷面 f 3圖為可用於本發明之反射型液晶顯示裝置(LCD) 圖〇 個映像點在「ON」狀態時加於上、下電極之波形斜 第5圖係一個映像點在「OFF」狀態時加於上、下電極之波邢 201126236 對時間之曲線圖。 第6圖顯示在「off」狀態時，不為零之電壓在顯示時間Ti時 加於上電極及下電極。 ‘ 第7圖為顯示本發明技術之電路圖。 第8圖顯示觸控感測電路之方塊電路圖 第 型顯科域本糾—板之混合The capacitor has no effect on the touch detection. The circuit 7 can perform the touch detection operation normally. 0, sl The published literature has many kinds of capacitive objects approaching the detector. Most of the capacitance j object proximity detectors can be used as the touch sensing circuit of the present invention. U.S. Patent No. 7,023,221 B1, Lin Fu De (Inventor of the Invention), Republic of China Patent No. 1 259908, EU Patent No. 1791260 B1, Patent No. ZL 200510080231·9 of the People's Republic of China, and Japanese Lido No. 4365817 is a capacitive object proximity detector and can also be used as the touch sensing circuit of the present invention. In the present invention, only one column of detectors is required in the touch sensing circuit. The touch sensing circuit is shown in FIG. The operation of this circuit is detailed in U.S. Patent No. 7,023,221. Here, the operation between the operation of the sensing circuit and the LCD display function will be explained in more detail. When the circuit of Fig. 8 is used for the side turn-over circuit 73 of Fig. 7, the operation of the touch sensing circuit is controlled by the microprocessor 71 of Fig. 7. The microprocessor 8〇6 of Fig. 8 can be combined with the microprocessor 71 of Fig. 7 to form a microprocessor. Otherwise, the microprocessor must, the microprocessor 71 work synchronously to ensure that the touch sensing function works in sync with the ^(3) display function. As shown in FIG. 7, the electrodes 760, 761 to 76N are respectively connected to the input of the touch sensing circuit, 1 to IN to IN. When the touch sensing time T2 ′′, all the electrodes are sequentially scanned by the transmission gates CNTC〇, CNCNT1 to CNTCN, as shown in Fig. 8. During the LCD display time T1, the field of the touch sensing circuit will be opened by the transmission gates CNCNT0, CNCNT1 to CNTCN of Fig. 8 from ^ 9 201126236, which does not show the second lion's lion's _ The description of the present invention is the construction of the display panel of the present invention and the conventional display panel right and lower electrodes. The process of the present invention and the conventional technology are not transmitted. The manufacturing of the liquid crystal display panel has no added cost. At the same time, it is transmitted as === 87, and it is made as shown in Figure 9. In Fig. 9, the upper electrodes 85, 86, and the upper electrodes 95, 96, 97, 98 play the dual functions of display and touch. The electrodes 8 82, 83, 84 and the common lower electrode 80 can only be used as display electrodes. The detailed description of the embodiments of the present invention is intended to provide a clearer description of the features and spirit of the present invention, and is not limited by the preferred embodiments described above. The contrary is intended to cover the scope of the invention as claimed in the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a conventional liquid crystal display device (LCD) having no touch fine function, which is a cross-sectional view of a see-through liquid crystal display device (LCD) of the present invention. In the reflection type liquid crystal display device (LCD) which can be used in the present invention, when the image point is "ON", the waveform applied to the upper and lower electrodes is oblique. FIG. 5 is an image point added to the "OFF" state. , the lower electrode of Bo Xing 201126236 on the curve of time. Fig. 6 shows that in the "off" state, a voltage that is not zero is applied to the upper and lower electrodes at the time of display time Ti. </ RTI> Figure 7 is a circuit diagram showing the technique of the present invention. Figure 8 shows the block circuit diagram of the touch sensing circuit.
81、82、83、84 上電極 85、86、87、88 上電極 95、96、97、98 下電極 130、131、132、133上顯示電極 【主要元件符號說明】 7 液晶顯示系統 12下基板 15液晶 17下偏光片 U上基板 25液晶 27下偏光片 38反射板 42加於下電極之電壓 51加於上電極之電壓 53加於上、下電極間之電壓 加於下電極之電壓 71微處理器 73觸控感測電路 11上基板 14下顯示電極 16上偏光片 18背光板 22下基板 26上偏光片 28背光板 41加於上電極之電壓 43加於上、下電極間之電壓 52加於下電極之電壓 61加於上電極之電壓 3 ί於i、下電極間彻 Μ顯不控制電路 80共用下電極 201126236 230、231、232及233上顯示電極 240、24卜242及243下顯示電極 740-74N顯示驅動電路陣列 760-76N下電極陣列 801輸入 804計數器 806微處理器 750-75N傳輸閘極陣列 770-77N上電極陣列 803 感測震盪器 805 系統震盪器81, 82, 83, 84 Upper electrodes 85, 86, 87, 88 Upper electrodes 95, 96, 97, 98 Lower electrodes 130, 131, 132, 133 display electrodes [Main component symbol description] 7 Liquid crystal display system 12 lower substrate 15 liquid crystal 17 under polarizer U upper substrate 25 liquid crystal 27 lower polarizer 38 reflective plate 42 applied to the lower electrode voltage 51 applied to the upper electrode voltage 53 applied to the voltage between the upper and lower electrodes applied to the lower electrode voltage 71 micro The processor 73 touches the sensing circuit 11 on the lower substrate 14 of the display electrode 16 on the polarizer 18, the backlight 22, the lower substrate 26, the polarizer 28, the backlight 41, and the voltage applied to the upper electrode 43 to the voltage between the upper and lower electrodes 52. The voltage applied to the lower electrode 61 is applied to the voltage of the upper electrode. The voltage between the lower electrode and the lower electrode is completely controlled by the control circuit 80. The lower electrodes 201126236 230, 231, 232 and 233 are displayed on the electrodes 240, 24, 242 and 243. Display electrodes 740-74N display drive circuit array 760-76N lower electrode array 801 input 804 counter 806 microprocessor 750-75N transmission gate array 770-77N upper electrode array 803 sensing oscillator 805 system oscillator
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