200921481 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種觸控液晶顯示裝置。 【先前技術】 近年來，隨操作人性化、簡潔化發展，帶有觸控面板 =控顯不裝置’特別是觸控液晶顯示裝置，越來越 地應用於生產及+、壬由 ,..m 物^ 可以直接用手或者其他 物體接觸觸控液晶顯示裝置以輸入訊息，從而減少甚 除用戶對其他輸入設備（如鍵盤、滑鼠、遙控 大大方便用戶之操作。 今X依賴 :刖’觸控面板通常包括電阻型、電容型 紅外線型等多種類型，豆一 车反生 疊之方式設置於液晶㈣==板 並採用堆 液晶顯干以、ί 裝置及控職置，從㈣成觸控 欣日日扇不衣置，實現觸控功能。 惟，上述堆疊結構之觸控液晶 通常藉由一粘合声對人认、々θ 3 衣直τ觸控面板 面板及姑人;〇 ;液日日頌不裝置之顯示面，該觸控 顯示裝置之厚度及重量增加。同時， 作用，使·液日顧 具有吸收、折射、反射等光學 工液日日顯不裝置之光穿透率降低，且易產+ # 學干擾，影響其顯示效果。 Γ"低且易產生先 【發明内容】 果？ 此’有必要提供一種厚度薄、重量輕及較效 果良好之觸控液晶顯示裝置。 t及員不放 200921481 種觸控液晶顯不裝置，其包括一液晶顯示面板，該 液晶顯示面板具有一顯示面，該顯示面設置有至少一聲波 發射<7。至少聲波反射條紋組及至少一聲波接收器。該 至少一聲波發射器用於發射聲波，該至少一聲波反射條紋 組用於將該至少一聲波發射器發射之聲波反射為沿多條路 徑傳播之聲波，該至少一聲波接收器用於接收該沿多條路 徑傳播之聲波。 一種觸控液晶顯示装置，其包括一液晶顯示面板，該 液aa顯示面板具有一顯示面，該顯示面至少二相對之侧邊 緣分別設置一聲波反射條紋組，該相對之聲波反射條紋組 端部分別設置一聲波發射器及一聲波接收器，該聲波發射 器發射之聲波依次被該二相對之聲波反射條紋反射後被該 聲波接收器接收。 相較於先前技術，本發明觸控液晶顯示裝置之顯示面 設置有聲波發射器、聲波反射條紋組及聲波接收器，藉由 "亥ί波反射條紋組將該聲波發射器發射之聲波反射為沿多 條路徑傳播之聲波，並被該聲波接收器接收，能夠實現觸 控定位功能。其省略觸控面板及黏合層之使用，具有厚度 小、重量輕之優點’有利於液晶顯示裝置輕薄之發展。同 時’由於避免由觸控面板及黏合層引起的光吸收、反射、 折射等現象，該觸控液晶顯示裝置之透光率高，且具有良 好之顯示效果。 【發明内容】 有鑑於此，有必要提供一種厚度薄、重量輕及顯示效 7 200921481 •果良好之觸控液晶顯示裝置。 一種觸控液晶顯示裝置，其包括一液晶顯示面板，該 液晶顯示面板具有一顯示面，該顯示面設置有至少一聲波 發射器、至少一聲波反射條紋組及至少一聲波接收器。該 至少一聲波發射器用於發射聲波，該至少一聲波反射條紋 組用於將該至少一聲波發射器發射之聲波反射為沿多條路 控傳播之聲波’該至少一聲波接收器用於接收該沿多條路 徑傳播之聲波。 f ' 一種觸控液晶顯示裝置，其包括一液晶顯示面板，該 液晶顯示面板具有—顯示面，該顯示面至少二相對之侧邊 緣分別設置一聲波反射條紋組，該相對之聲波反射條紋組 端部分別設置一聲波發射器及一聲波接收器，該聲波發射 器發射之聲波依次被該二相對之聲波反射條紋反射後被該 聲波接收器接收。 相較於先前技術，本發明觸控液晶顯示裝置之顯示面 I設置有聲波發射器、聲波反射條紋組及聲波接收器，藉由 該聲波反射條紋組將該聲波發射器發射之聲波反射為沿多 條路徑傳播之聲波，並被該聲波接收器接收，能夠實現觸 控定位功能。其省略觸控面板及黏合層之使用，具有厚度 小重i輕之優點’有利於液晶顯示裝置輕薄之發展。同 時’由於避免由觸控面板及黏合層引起的光吸收、反射、 折射等現象’該觸控液晶顯示裝置之透光率高，且具有良 好之顯示效果。 义 【實施方式】 200921481 請參閱圖1，係本發明觸控液晶顯示裝置第一實施方 式之側面結構示意圖。該觸控液晶顯示裝置i包括一觸控 液晶顯不面板1()及—為該觸控液晶顯示面板Μ提供照明 之背光模組18。 該觸控液晶顯示面板1G包括—第—基板η、一第二 基板12及—夾於·—基板11及”二基板12之間之液 晶層13。 該第一基板11及該第二基板12均係透明玻璃基板。 該第-基板U與該液晶層13之間設置一第一偏光片 1一11該第基板通離該液晶層13 一側為該觸控液晶顯 不裝置1之顯不面（未標不），該顯示面設置有複數聲波換 能器（未標示）。該第二基板12與該液晶層13之間設置一 第二偏光片121。 請參閱圖2,係圖工所示觸控液晶顯示裝置工之平面 結構示意圖。該第-基U <顯示面進—步設置四聲波反 射條紋組及154。每—聲波反射條紋組151、 152 153 1 $ 4均包括複數間距由疏松至密集且平行排列 之反射條紋（未標示）。該四聲波反射條紋组151、152、153、 154對應設置於該第一基板11顯示面之四側邊。如圖2所 示笛卡爾座標系中’該第―、第三聲波反射條紋組151、 153對稱設置並沿X軸方向排列’且每一聲波反射條紋與 X軸方向成一疋角度，如45。。該第二、第四聲波反射條 紋組152、154對稱設置並沿γ軸方向排列，且每一聲波 反射條紋與Y軸方向成一定角度，如45。。 200921481 該複數聲波換能器包括一第一聲波發射器、一第 —聲波接收器142、一第二聲波發射器143及一第二聲波 接收器144。該第一聲波發射器141設置於該第一聲波反 射條紋組151之反射條紋排列較疏松之一端。該第二聲波 發射器143設置於該第二聲波反射條紋組152之反射條紋 排列較疏松之一端。該第一聲波接收器142設置於該第三 聲波反射條紋組153之反射條紋排列較疏松之一端，該第 二聲波接收器M4設置於該第四聲波反射條紋組154之反 射條紋排列較疏松之一端。 請參閱圖3,其係該觸控液晶顯示面板1〇之觸控定位 方法示意圖。其中橫軸為時間座標τ，縱軸為聲波強度座 標s，三曲線分別代表該：第一、第二聲波發射器141、 143之發射聲波波形a，該第一、第二聲波接收器ία、ΜΑ 之接收聲波波形b及一參考聲波波形c。 以下結合圖2及圖3，以觸控點之X座標判斷方法為 例，介紹該觸控液晶顯示面板1〇之觸控座標定位方法。 於某一時刻，該第一聲波發射器141沿χ軸反方向發 射了束高能脈衝聲波於該第一基板u表面傳播。該脈 衝聲波a按傳播距離由近至遠依次經過該反射條紋組 之^反射條紋，由於每一反射條紋均與該聲波傳播方向成 一定角度，則該聲波a到達每一反射條紋時，均有部份聲 波a被反射並沿γ軸方向於該第一基板n表面沿多種路 k傳播形成沿於Y轴傳播之平面聲波。當該平面聲波先 後到達該第三聲波反射條紋組153時，該第三聲波反射條 10 200921481 -紋組153對應之反射條紋將該沿Y軸方向傳播之平面聲波 .反射為沿X轴正向傳播之聲波，並被設置於其端部之該第 一聲波接收器142依次接收。 由於該第一、第三聲波反射條紋組151、153之反射條 紋與該第一、第二聲波發射器141、142之間距離逐漸增 加，則鄰近該第一聲波發射器141、第一聲波接收器142 之反射條紋反射之聲波傳播距離短，同時傳播時間短，較 早被該第一聲波接收器142接收。遠離該第一聲波發射器 141苐聲波接收态142之反射條紋反射之聲波傳播距離 長，同時傳播時間長，較晚被該第一聲波接收器142接收。 從二該第一聲波接收器142於一較長時間段内陸續接收由 該複數聲波反射條紋反射之聲波，且每一時刻τ接收之聲 波波形對應一反射條紋相應之χ座標，形成時間了與χ = 標之對應關係。 ' 當該觸控液晶顯示面板1〇未接收觸控操作時，沿該第 =基板11表面傳播之平面聲波未受干擾，該第一聲波接收 盗142接收之聲波波形與該參考波形c相似 控該觸控液晶顯示面柘, 篮觸 曰曰射面板10表面任-觸‘點17,經過該觸.點 被該物體吸收，㈣第—聲波接收器142於 刻接收之聲波能量變小，如曲線b所示之接收聲波 之缺口處。藉由實際接收聲波波形b與參考聲波波 > c做比較，根據接收時間τ / 斷出該觸點17之\軸座標。仏之對應關係’可判 該觸點17之γ軸座標判斷方法與X軸座標判斷方法 11 200921481 相似，惟，聲波由該第二聲波發射器143發射，經過該反 射條紋組m、154連續反射後被該第二聲波接㈣144 接收。 σ 藉由上述方法，最終可確定該觸點17之座標，並根據 〃座標執行相關之操作。 相較於先前技術，該觸控液晶顯示裝置i之第一基板 11的四侧邊分別設置反射條紋組151、152、5i3、，並 於該^ 一基板11拐角處設置聲波發射器141、143及聲波 接收器142、144，使聲波於該第一基板n表面傳播並完 成觸控定位功能。該觸控液晶顯示裝置丨不需要額外之觸 控面板，其厚度小重量輕，有利於液晶顯示裝置丄輕薄之 發展。同時，因為避免使用觸控面板及黏合膠，減少t光吸 收.、折射、反射等現象，其光損失少，透光率高，且該觸 控液晶顯示裝置1具有良好之顯示效果。 π —併參閱圖4及圖5，圖4係本發明觸控液晶顯示 震置第—只把方式之側面結構示意圖，圖5係圖4所示觸 控液Ba顯示裝置之平面結構示意圖。該觸控液晶顯示裝置 2與該觸控液晶顯示裝置1結構相似，其主要區別在於： 第—偏光片211設置於第一基板21遠離液晶層23 一側 之表面，一第二偏光片221設置於第二基板22遠離該液晶 層23 —側之表面。第一、第二聲波發射器241、及第 一、第二聲波接收器242、244設置於該第一偏光片211 表面，該第一、第二、第三、第四聲波反射條紋組251、 252、253、254對應設置於該第一偏光片211之四側邊。 12 200921481 ^他可變形實施方式中，聲波發射器及聲波接收器 • ς二三個，母組聲波反射條紋組之複數聲波反射條紋亦 二护，:又置。該聲波發射器發射-聲波’並被分波元器 專裝置为為沿相鄰兩邊傳輸之聲波，相繼被對邊之反射條 掌泳反身!後被該聲波接收器接收，該聲波接收器根據接收 間來判斷該時刻之聲波傳輪之相應路徑，並根據 結構、降低成本。 -相步減少-件，從而簡化 提二ί發明確已符合發明專利之要件，爰依法 ^出，專利。惟’以上所述者僅係本發明之較佳實施方 i枯ί發明之範圍並不以上述實施方式爲限，舉凡熟悉本 I_ 人士援依本發明之精神所作之#效修飾或變化， 白應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係本發明觸控液晶顯示裝置第一實施方式之側面結構 示意圖。 :2係圖1所示觸控液晶顯示裝置之平面結構示意圖。 ㈤3係圖丄所示觸控液晶顯示裝置之觸控點座標定位方法 示意圖。 圖4係本發明觸控液晶顯示裝置第二實施方式之側面結構 示意圖。 圖5係圖4所示觸控液晶顯示裝置之平面結構示意圖。 【主要元件符號說明】 143 、 243 觸控液晶顯示裝置1、2第二聲波發射器 13 200921481 -觸控液晶顯示面板 _第一基板 第一偏光片 第二基板 第二偏光片 液晶層 第一聲波發射器 第一聲波接收器 10 第 二 聲 波接收器 144、 • 244 11 、21 第 -— 聲 波反射條紋 組 151、 • 251 111、 211 第 二 聲 波反射條紋 組 152、 • 252 12 '22 第 二 聲 波反射條紋 組 153、 •253 121、 221 第 四 聲 波.反射條紋 組 154、 ‘254 13 、23 觸 點 17 141、 241 背 光模 組 18 142、242 14200921481 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a touch liquid crystal display device. [Prior Art] In recent years, with the user-friendly and succinct development, with touch panel = control display device, especially touch liquid crystal display device, more and more applied to production and +, 壬, ... m object ^ can directly touch the liquid crystal display device by hand or other objects to input information, thereby reducing the user's operation on other input devices (such as keyboard, mouse, remote control greatly facilitates the user's operation. Today X relies: 刖 'touch The control panel usually includes a variety of types, such as a resistive type and a capacitive infrared type. The bean is placed in the liquid crystal (four) == board and is used by a stack of liquid crystal display, ί device and control position, and (four) into touch. The illuminating fan is not placed for the touch function. However, the touch liquid crystal of the above stacked structure is usually recognized by a bonding sound, 々θ 3 clothes straight τ touch panel panel and aunt; The thickness and weight of the touch display device are increased on the display surface of the device, and the light transmittance of the optical liquid working device such as absorption, refraction, and reflection is reduced. And easy to produce + # Interference, affecting its display effect. Γ"Low and easy to produce first [Invention content] If this is necessary, it is necessary to provide a touch liquid crystal display device with thin thickness, light weight and good effect. t and staff do not put 200921481 touch The liquid crystal display device includes a liquid crystal display panel having a display surface, the display surface being provided with at least one sound wave emission < 7. at least a sound wave reflection stripe group and at least one sound wave receiver. The acoustic wave transmitter is configured to emit sound waves, and the at least one sound wave reflection stripe group is configured to reflect the sound waves emitted by the at least one sound wave emitter into sound waves propagating along a plurality of paths, and the at least one sound wave receiver is configured to receive the sound wave along the plurality of paths. A liquid crystal display device comprising a liquid crystal display panel, the liquid aa display panel having a display surface, wherein at least two opposite side edges of the display surface are respectively provided with a sound wave reflection stripe set, the relative sound wave reflection stripe An acoustic wave transmitter and a sound wave receiver are respectively disposed at the end of the group, and the sound waves emitted by the sound wave transmitter are sequentially And being reflected by the sound wave reflection stripe and being received by the sound wave receiver. Compared with the prior art, the display surface of the touch liquid crystal display device of the present invention is provided with an acoustic wave transmitter, a sound wave reflection stripe group and a sound wave receiver. "Haiyu wave reflection stripe group reflects the sound wave emitted by the sound wave emitter into sound waves propagating along multiple paths, and is received by the sound wave receiver, which can realize the touch positioning function. The elliptical touch panel and the adhesive layer are omitted. It has the advantages of small thickness and light weight, which is beneficial to the development of thin and light liquid crystal display devices. At the same time, the touch liquid crystal display device is transparent because it avoids light absorption, reflection and refraction caused by the touch panel and the adhesive layer. In view of the above, it is necessary to provide a touch liquid crystal display device with a thin thickness, a light weight, and a display effect. A touch liquid crystal display device comprising a liquid crystal display panel, the liquid crystal display panel having a display surface, the display surface being provided with at least one acoustic wave emitter, at least one acoustic wave reflection stripe set and at least one acoustic wave receiver. The at least one acoustic wave transmitter is configured to emit sound waves, and the at least one sound wave reflection stripe group is configured to reflect the sound waves emitted by the at least one sound wave emitter into sound waves propagating along a plurality of roads, wherein the at least one sound wave receiver is configured to receive the sound wave Sound waves propagating through multiple paths. And a liquid crystal display panel, the liquid crystal display panel has a display surface, and at least two opposite side edges of the display surface are respectively provided with a sound wave reflection stripe group, and the opposite sound wave reflection stripe group end A sound wave transmitter and a sound wave receiver are respectively disposed, and the sound waves emitted by the sound wave emitter are sequentially reflected by the two opposite sound wave reflection stripes and received by the sound wave receiver. Compared with the prior art, the display surface I of the touch liquid crystal display device of the present invention is provided with an acoustic wave transmitter, a sound wave reflection stripe group and an acoustic wave receiver, and the sound wave reflected by the sound wave emitter is reflected as a sound wave by the sound wave reflection stripe group. The sound waves propagated by a plurality of paths are received by the sound wave receiver, and the touch positioning function can be realized. It omits the use of the touch panel and the adhesive layer, and has the advantages of small thickness and light weight, which is advantageous for the development of the thin and light liquid crystal display device. At the same time, the light absorption, reflection, refraction and the like caused by the touch panel and the adhesive layer are avoided. The touch liquid crystal display device has high light transmittance and has a good display effect. [Embodiment] 200921481 Please refer to FIG. 1 , which is a side view showing the first embodiment of the touch liquid crystal display device of the present invention. The touch liquid crystal display device i includes a touch liquid crystal display panel 1 () and a backlight module 18 for providing illumination to the touch liquid crystal display panel. The touch liquid crystal display panel 1G includes a first substrate η, a second substrate 12, and a liquid crystal layer 13 sandwiched between the substrate 11 and the two substrates 12. The first substrate 11 and the second substrate 12 A transparent glass substrate is provided. A first polarizer 1-11 is disposed between the first substrate U and the liquid crystal layer 13. The side of the first substrate passing through the liquid crystal layer 13 is displayed by the touch liquid crystal display device 1. The surface (not shown) is provided with a plurality of acoustic transducers (not shown). A second polarizer 121 is disposed between the second substrate 12 and the liquid crystal layer 13. Referring to FIG. 2, the drawing is performed. A schematic diagram of a planar structure of the touch liquid crystal display device shown in the figure. The first base U < display surface further sets four acoustic wave reflection stripe groups and 154. Each of the sound reflection stripe groups 151, 152 153 1 $ 4 includes a plurality The spacing is from loose to dense and parallel arranged reflective stripes (not shown). The four acoustic wave reflective stripe groups 151, 152, 153, 154 are correspondingly disposed on four sides of the display surface of the first substrate 11. As shown in Figure 2 In the Karl coordinate system, the first and third acoustic reflection stripe groups 151 and 153 are symmetric. And arranged in the direction of the X-axis and each of the acoustic wave reflection stripes is at an angle to the X-axis direction, such as 45. The second and fourth acoustic wave reflection stripe groups 152, 154 are symmetrically arranged and arranged along the γ-axis direction, and each A sound wave reflection stripe is at an angle to the Y-axis direction, such as 45. 200921481 The complex sound wave transducer includes a first sound wave emitter, a first sound wave receiver 142, a second sound wave emitter 143, and a second The first acoustic wave emitter 141 is disposed at one end of the first acoustic wave reflection stripe group 151. The second acoustic wave emitter 143 is disposed on the second acoustic wave reflection stripe group 152. The first acoustic wave receiver 142 is disposed at one end of the third acoustic wave reflection stripe group 153, and the second acoustic wave receiver M4 is disposed on the fourth acoustic wave reflection stripe group 154. The reflection stripe is arranged at a looser end. Please refer to FIG. 3 , which is a schematic diagram of the touch positioning method of the touch liquid crystal display panel. The horizontal axis is the time coordinate τ and the vertical axis is the sound wave. The coordinate s, the three curves respectively represent the transmitted acoustic wave waveform a of the first and second acoustic wave emitters 141, 143, the received acoustic wave waveform b of the first and second acoustic wave receivers ία, ΜΑ, and a reference acoustic waveform c Referring to FIG. 2 and FIG. 3, the touch coordinate positioning method of the touch liquid crystal display panel is described by taking the X coordinate determination method of the touch point as an example. At a certain moment, the first acoustic wave emitter 141 is along The beam in the opposite direction emits a beam of high-energy pulsed sound wave propagating on the surface of the first substrate u. The pulse sound wave a passes through the reflection stripe of the reflection stripe group in the near-to-far distance according to the propagation distance, since each reflection stripe is associated with the sound wave When the sound wave a reaches a certain angle, when the sound wave a reaches each of the reflection stripes, part of the sound waves a are reflected and propagate along the γ-axis direction along the plurality of paths k on the surface of the first substrate n to form a plane along the Y-axis. Sound waves. When the plane acoustic wave reaches the third acoustic wave reflection stripe group 153 successively, the third acoustic wave reflection strip 10 200921481 - the corresponding reflection stripe of the pattern group 153 reflects the plane sound wave propagating along the Y-axis direction to be positive along the X-axis. The transmitted sound waves are sequentially received by the first acoustic wave receiver 142 disposed at the end thereof. Since the distance between the reflection stripe of the first and third acoustic wave reflection stripe groups 151, 153 and the first and second acoustic wave emitters 141, 142 is gradually increased, the first acoustic wave transmitter 141 is adjacent to the first acoustic wave receiver 141. The acoustic wave reflected by the reflected fringes of the 142 has a short propagation distance and a short propagation time, which is received by the first acoustic wave receiver 142 earlier. Far from the first acoustic wave emitter 141, the reflected fringes of the acoustic wave receiving state 142 reflect a long sound wave propagation distance, while the propagation time is long, and is received by the first acoustic wave receiver 142 later. The first acoustic wave receiver 142 receives the sound waves reflected by the complex acoustic wave reflection strips for a long period of time, and the sound wave waveform received at each time τ corresponds to a corresponding coordinate of the reflective stripe, and the time is formed. χ = the corresponding relationship. When the touch liquid crystal display panel 1 does not receive the touch operation, the plane sound wave propagating along the surface of the first substrate 11 is not disturbed, and the sound wave waveform received by the first sound wave receiving 142 is similar to the reference waveform c. The touch liquid crystal display surface 柘, the surface of the touch panel 10 is any touch-point 17 , and is absorbed by the object through the touch point, and (4) the sound energy received by the first sound wave receiver 142 is reduced, such as The gap of the received acoustic wave shown by curve b. By comparing the actual received acoustic waveform b with the reference acoustic wave > c, the \axis coordinate of the contact 17 is broken according to the reception time τ / . The corresponding relationship of 仏 can be judged that the γ-axis coordinate judging method of the contact 17 is similar to the X-axis coordinate judging method 11 200921481, but the acoustic wave is emitted by the second acoustic wave emitter 143, and is continuously reflected by the reflective fringe group m, 154 It is then received by the second acoustic wave (four) 144. σ By the above method, the coordinates of the contact 17 can be finally determined, and the related operations are performed according to the 〃 coordinate. Compared with the prior art, the four sides of the first substrate 11 of the touch liquid crystal display device i are respectively provided with reflective stripe groups 151, 152, 5i3, and the acoustic wave emitters 141, 143 are disposed at the corners of the substrate 11. And the acoustic wave receivers 142 and 144, so that the sound waves propagate on the surface of the first substrate n and complete the touch positioning function. The touch liquid crystal display device does not require an additional touch panel, and has a small thickness and light weight, which is advantageous for the development of the liquid crystal display device. At the same time, since the touch panel and the adhesive are avoided, the phenomenon of light absorption, refraction, reflection, and the like is reduced, the light loss is small, the light transmittance is high, and the touch control liquid crystal display device 1 has a good display effect. π - and referring to FIG. 4 and FIG. 5, FIG. 4 is a schematic side view showing the structure of the touch liquid crystal display of the present invention, and FIG. 5 is a plan view showing the planar structure of the touch liquid Ba display device shown in FIG. The touch liquid crystal display device 2 is similar in structure to the touch liquid crystal display device 1. The main difference is that the first polarizer 211 is disposed on a surface of the first substrate 21 away from the liquid crystal layer 23, and a second polarizer 221 is disposed. The second substrate 22 is away from the surface of the liquid crystal layer 23 side. The first and second acoustic wave emitters 241 and the first and second acoustic wave receivers 242 and 244 are disposed on the surface of the first polarizer 211, and the first, second, third, and fourth acoustic wave reflection stripe groups 251, 252, 253, and 254 are disposed on four sides of the first polarizer 211. 12 200921481 ^ In his deformable embodiment, the acoustic wave transmitter and the acoustic wave receiver • ς two or three, the complex acoustic reflection stripe of the mother group acoustic reflection stripe group is also protected, and is set again. The acoustic wave transmitter emits - sound wave ' and is divided by the wave element device as sound waves transmitted along two adjacent sides, and is successively reciprocated by the opposite side of the reflection bar; then received by the sound wave receiver, the sound wave receiver is based on The receiving room determines the corresponding path of the sound wave transmitting wheel at that moment, and reduces the cost according to the structure. - Step by step - reduce the number of parts, thus simplifying the two. The invention has indeed met the requirements of the invention patent, and has been patented. However, the above description is only for the preferred embodiment of the present invention. The scope of the invention is not limited to the above embodiments, and those skilled in the art will be modified or changed according to the spirit of the present invention. It should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the side structure of a first embodiment of a touch liquid crystal display device of the present invention. 2 is a schematic diagram of the planar structure of the touch liquid crystal display device shown in FIG. (5) Schematic diagram of the touch point coordinate positioning method of the touch liquid crystal display device shown in FIG. 4 is a schematic view showing the side structure of a second embodiment of the touch liquid crystal display device of the present invention. FIG. 5 is a schematic plan view showing the structure of the touch liquid crystal display device shown in FIG. 4. [Main component symbol description] 143, 243 touch liquid crystal display device 1, 2 second sound wave transmitter 13 200921481 - touch liquid crystal display panel _ first substrate first polarizer second substrate second polarizer liquid crystal layer first sound wave Transmitter first acoustic wave receiver 10 second acoustic wave receiver 144, • 244 11 , 21 first - acoustic wave reflection fringe group 151, • 251 111, 211 second sound wave reflection fringe group 152, • 252 12 '22 second sound wave Reflective stripe group 153, • 253 121, 221 fourth sound wave. Reflective stripe group 154, '254 13 , 23 contact 17 141, 241 backlight module 18 142, 242 14