200941305 九、發明說明： 【發明所屬之技術領域】 本發明係與液晶顯示器之操控結構有關，更詳而言之 是指一種觸控訊號傳輸電路以及使用該觸控訊號傳輸電路 之液晶顯示器。 5 【先前技術】 按，觸控感應裝置係利用偵測手指或物體接觸面板的 位置，進而傳送信號以達控制或啟動之目的，是現階段最 簡易且最人性化的輸入方式’因此常為許多電子產品所應 10用。已知的觸控感應原理有電阻式、電容式及電磁感應式 等，目前的觸控感應裝置雖以電風式居多，但因電阻式無 法進行多點觸控使得操控受到局限，且電阻式結構需經施 力觸壓感應’易造成面板特定部位長期承受多次的反覆應 力致生損害，因此，具有多點觸控功能且面板不需承受過 15多應力的電容式觸控感應裝置遂逐漸為市場所注目。 惟’即便電谷式觸控感應裝置具有市場優勢，但其仍 是以貼附的方式與顯示器結合，因此將造成整體面板厚度 增加、重量加重，亦可能損及光學顯示效果，如穿透率下 降或是反射率上升，對於電子產品設計日趨精緻化而言， 20 上述缺失似為可再改善。 有鑒於此，本案發明人乃經詳思細索，並積多年從事 光學顯示器之研究開發經驗，終而有本發明之產生。 【發明内容】 4 200941305 本發明之主要目的在於提供一種觸控訊號傳輸電路以 及使用該觸控訊號傳輸電路之液晶顯示器，係可降低顯示 器整體厚度及減輕重量。 緣以達成上述之目的，本發明所提供之一種觸控訊號 5傳輸電路以及使用該觸控訊號傳輸電路之液晶顯示器，包 含一上基板、一形成於該上基板的内面的觸控訊號傳輸電 © 路該傳輸電路具有沿著第一方向與第二方向交錯設置且 彼此為電性絕緣的複數條第一電極與複數條第二電極，至 )第一接合襯墊與該些第一電極電性連接，至少一第二 ⑴接合襯墊與該些第二電極電性連接；另有—下基板貼合於 該上基板下方，該下基板具有複數條導線，該些導線一端 與前述之第-與第二接合襯墊電性連接，另一端與一 1C電性遠拯。 15 % 【實施方式】 第一至二圖為本發明第一較佳實施 控訊號傳輸電路的液晶顯示器i之示 白么女L甘』 丁忍圖’該液晶顯不器1 包含有-上基板1()、—觸控訊號傳輸電路Μ、 ^ -導電層32與-觸控IC 34 ’以下說明不敘及』板 僅就最終結構之各構件特徵及相關位置敘述. 本實施例之上基板1G為包括有—透日林體12盘 色濾光層14的彩色濾光片基板，其麻、/ 形成於該透明本體12 _面12a，且14係 (Black Matrix, BM) . 20 200941305 單元14a、14b、14c ;前述黑色矩陣是以黑色樹脂材料製 且包括分別沿著第-方向D1設置的複數條第—遮光元件 16以及沿著第二方向D2設置的複數條第二遮光元件18 , 該第方向D1與第—方向D2係呈垂直交錯，該些第一與 5第二遮光元件16、18共同圍繞界定出多數個區域’該些區 域内依序配置有紅、綠、藍色的濾光單元14a、14b、i4c。 請配合第一、四圖，該觸控訊號傳輸電路20包括有複 數條第一與第二電極21、22以及複數個第一與第二接合襯 墊（bonding pad) 23、24，其中： ίο 該些第一電極21沿著第一方向D1設置，且各別 為一前述之第一遮光元件16所包覆，每一第一電極21 並與設置在接近透明本體12 —侧邊緣的第一接合襯整 23電性連接； 該些第二電極22沿著第二方向D2設置’且各別 15 為一前述之第二遮光元件18所包覆，每一第二電極22 並與設置在接近透明本體12 —側邊緣的第二接合概整 24電性連接’必須說明的是，由於第二電極22的製作 係在完成製作第一遮光元件16之後，因此第二電極22 並不會與第一電極21產生電性連接，而是以電性絕緣 20 的方式交疊在第一電極21的上方； 以上所述之第一電極21與第二電極22交織的範 圍即構成本發明之觸控感應區，因電極是極精細的元 件’為便於說明及繪製，所示圖面僅以少數電極為代 表0 6 200941305 * *本實把例之下基板26為包括一透明本體27與複數個 薄膜電^體28的薄膜電晶體陣列基板，透明本體27的面 積大於則述透明本體12面積，而該些薄膜電晶體28係呈 陣列排列於透明本體27的表面；下基板26藉由一框膠 5 (mam Seal) 29而貼合於上基板10的下方，框膠29所圍 繞的區域涵蓋對應的觸控感應區，下基板26之透明本體27 © 在框膠29外圍具有複數條導線30，該些導線3G之兩端分 別為一第一接點3〇a與一第二接點3%。 »亥導電層32位於該上基板丨〇與該下基板％之間其 1〇作用係將該些第—接合襯墊23及第二接合襯塾％各別電 性連接至對應的導線3〇之第一接點施，在本實施例中的 導電層32為異方向性導電膜（_她〇咏c⑽BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control structure of a liquid crystal display, and more particularly to a touch signal transmission circuit and a liquid crystal display using the touch signal transmission circuit. 5 [Prior Art] Press, the touch sensing device uses the position of the finger or object to touch the panel, and then transmits the signal for control or startup. It is the easiest and most user-friendly input method at this stage. Many electronic products should be used 10 times. Known touch sensing principles include resistive, capacitive, and electromagnetic induction. Although the current touch sensing devices are mostly electric, most of them cannot be multi-touch due to resistance, and the control is limited. The structure needs to be subjected to the force-sensitive touch sensing. It is easy to cause a certain part of the panel to withstand repeated stresses for a long time. Therefore, the capacitive touch sensing device with multi-touch function and the panel does not need to withstand more than 15 stresses遂Gradually paying attention to the market. However, even if the electric valley touch sensing device has a market advantage, it is still attached to the display in an attached manner, which will result in an increase in the thickness of the entire panel, an increase in weight, and may also impair the optical display effect, such as transmittance. Declining or increasing reflectivity, for the increasingly refined design of electronic products, the above-mentioned missing seems to be able to be improved. In view of this, the inventor of the present invention has been studying and developing the experience of optical display for many years, and finally has the invention. SUMMARY OF THE INVENTION The main purpose of the present invention is to provide a touch signal transmission circuit and a liquid crystal display using the touch signal transmission circuit, which can reduce the overall thickness of the display and reduce the weight. In order to achieve the above object, a touch signal 5 transmission circuit and a liquid crystal display using the touch signal transmission circuit include an upper substrate and a touch signal transmission circuit formed on the inner surface of the upper substrate. The transmission circuit has a plurality of first electrodes and a plurality of second electrodes staggered along the first direction and electrically insulated from each other, and the first bonding pads and the first electrodes are electrically connected The second (1) bonding pad is electrically connected to the second electrodes; and the lower substrate is attached to the lower substrate, the lower substrate has a plurality of wires, and the wires are connected to the first - electrically connected to the second bonding pad, and the other end is electrically connected to a 1C. 15% [Embodiment] The first to second figures are the liquid crystal display i of the first preferred embodiment of the control signal transmission circuit of the present invention, and the white liquid display device 1 includes the upper substrate. 1 (), - touch signal transmission circuit Μ, ^ - conductive layer 32 and - touch IC 34 'The following description does not describe the board only for the final structure of the various components and related positions. The substrate above this embodiment 1G is a color filter substrate including a 12-color filter layer 14 of a transparent body, which is formed on the transparent body 12-face 12a and 14-series (Black Matrix, BM). 20 200941305 unit 14a, 14b, 14c; the black matrix is made of a black resin material and includes a plurality of first light-shielding elements 16 respectively disposed along the first direction D1 and a plurality of second light-shielding elements 18 disposed along the second direction D2. The first direction D1 and the first direction D2 are vertically staggered, and the first and fifth second shading elements 16 and 18 collectively define a plurality of regions. The regions are sequentially arranged with red, green and blue colors. Filter units 14a, 14b, i4c. In conjunction with the first and fourth figures, the touch signal transmission circuit 20 includes a plurality of first and second electrodes 21, 22 and a plurality of first and second bonding pads 23, 24, wherein: ίο The first electrodes 21 are disposed along the first direction D1, and are each covered by a first shielding element 16 as described above, and each of the first electrodes 21 is disposed first with a side edge disposed adjacent to the transparent body 12. The bonding pads 23 are electrically connected; the second electrodes 22 are disposed along the second direction D2 and the respective 15 are covered by a second shielding element 18, and each of the second electrodes 22 is disposed close to The transparent body 12 - the second joint of the side edge is substantially connected to the second electrical connection. It must be noted that since the second electrode 22 is fabricated after the first shading element 16 is completed, the second electrode 22 does not An electrode 21 is electrically connected, but overlaps the first electrode 21 by means of electrical insulation 20; the range of the first electrode 21 and the second electrode 22 interlaced as described above constitutes the touch of the present invention. Sensing area, because the electrode is a very fine component 'for convenience Ming and drawing, the picture shown is represented by only a few electrodes. 0 6 200941305 * * The substrate 26 is a thin film transistor array substrate including a transparent body 27 and a plurality of thin film electrodes 28, transparent body The area of the thin film transistor 28 is arranged in an array on the surface of the transparent body 27; the lower substrate 26 is attached to the upper substrate 10 by a mamm seal 29. In the lower part, the area surrounded by the frame rubber 29 covers the corresponding touch sensing area, and the transparent body 27 of the lower substrate 26 has a plurality of wires 30 on the periphery of the frame glue 29, and the two ends of the wires 3G are respectively a first connection. Point 3〇a and a second contact 3%. The self-conducting layer 32 is located between the upper substrate and the lower substrate, and the first bonding pad 23 and the second bonding pad are electrically connected to the corresponding wires 3〇. The first contact is applied, and the conductive layer 32 in the embodiment is an anisotropic conductive film (_her〇咏c(10)
Film，ACF)，當然亦可採用成本較低廉的導電粒子。 該觸控1C 34係直接連結於該下基板26之透明本體27 ❺b上’且與該些導線3〇之第二接點3〇b電性連接觸控IC34 接收觸控感應區内所傳送感應特定位置的信號，據以啟動 或控制液晶顯7F器1 ;觸控IC 34的配置方式除第二圖揭示 之直接设於下基板26外，亦可採如第五圖所示之態樣，亦 即觸控1C 34是電性連接於一軟性印刷電路板35上，該軟 性印刷電路板35再與下基板26上之該些導線3〇的第二接 點30b電性連接。 以上，即為液晶顯示器丨之構成說明，本實施例的技 術特徵主要是將作為觸控感應的觸控訊號傳輸電路20直接 製作形成於液晶顯示器i既有的上基板1G的内面12a，再 7 200941305 利用該彩色濾、光片基板的黑色矩陣包覆第—電極21與第二 電極22’同時使得第一電極21與第二電極22彼此間7 性絕緣，因此，當吾人以手指接觸上基板1〇之表面時於 觸及位置所產生的電容效應將透過觸控忙34 枯 5 _化’進而確定手指觸及的位置。再者，正因觸控：號 f輸電路2G是直接製作於液晶顯示II 1的内部，因此可^ ❹ 得降低整體顯示器的厚度及減輕重量的效果，符合電子^ 品設計日趨精緻化的要求。 一第六圖為本發明之第二實施例，其結構大致與上述第 實施例相同，差異處在於第二實施例之觸控訊號傳輸電 路20’的第一電極21，與第一接合襯墊23,、第二電極22，與 第接δ概塾24之間的關係，是以二條電極共用一個接^ 襯墊的方式製作，當然，亦可視需求而改變電極數與一個 接合襯墊之間的對應關係，此改變並不會造成觸控感應不 .❹15良’理由係電極密布而手指觸及面積涵蓋較大，足以正確 感應出特定位置。 另外’在第一實施例的敎示下’本發明結構亦可再作 延伸變化’如第七圖所示，益非每一遮光元件36内部皆嵌 入一條電極38,而是將電極38以間隔排列方式嵌入對應的 2〇遮光疋件36内部’每一電極38再電性連接一接合襯墊40, 如此’可在不影響觸控效果下適當地減少電極材料的支 出’其次’依第二實施例的敎示，第七圖之結構可再改變 為二條電極38共用一個接合襯墊40 (第八圖參照）。 上述液晶顯示器之結構態樣，是把彩色濾光層配置於 8 200941305 上基板’再與一般的薄膜電晶體陣列基板搭配使用’然在 COA (color filter cm array)製程下的液晶顯示器結構，亦 適用本發明，亦即液晶顯示器之上基板内面 訊號傳輸電路，料再配置有該彩色濾’柄。〜觸控 以上所述僅為本發明之較佳可行 ❹ 說明書及中請專利範圍所為之=已，舉凡應 應匕3在本發明之專利範圍内。 攻、、、Q樽變化，理 200941305 【圖式簡單說明】 第一圖為本發明第一較佳實施例之立體分解圖。 第二圖為第一圖之立體組合圖。 第三圖為第二圖之局部剖視圖。 5 第四圖為一局部立體圖，揭示第一較佳實施例之觸控 訊號傳輸電路與遮光元件之關係。 第五圖類同第二圖，揭示觸控ic設置在軟性印刷電路 板上。 第六圖類同第一圖，揭示二條電極共用一個接合襯墊。 10 第七圖類同第四圖，揭示電極是以間隔排列方式飯入 對應的遮光元件内部，且每一電極電性連接一接合襯墊。 第八圖類同第七圖，揭示二條電極共用一個接合襯墊。 200941305 【主要元件符號說明】 1 液晶顯示器 10 上基板 12透明本體 12a内面 Η彩色濾光層 5 14a、14b、14c紅、綠、藍色濾光單元 16第一遮光元件 18第二遮光元件 20(20’）觸控訊號傳輸電路 21(21’）第一電極 22(22’）第二電極 23(23’）第一接合襯墊 24(24’）第二接合襯墊 ίο 26 下基板 27透明本體 28薄膜電晶體29框膠 30 導線 30a第一接點 30b第二接點 32 導電層 34 觸控1C 15 36 遮光元件 38電極 40接合襯墊 11Film, ACF), of course, can also use less expensive conductive particles. The touch 1C 34 is directly connected to the transparent body 27 ❺ b of the lower substrate 26 and electrically connected to the second contact 3 〇 b of the wires 3 to receive the sensing in the touch sensing area. The signal of the specific position is used to start or control the liquid crystal display device 1; the configuration of the touch control IC 34 can be directly disposed on the lower substrate 26 as disclosed in the second figure, and the aspect shown in the fifth figure can also be adopted. That is, the touch 1C 34 is electrically connected to a flexible printed circuit board 35, and the flexible printed circuit board 35 is electrically connected to the second contacts 30b of the wires 3A on the lower substrate 26. The above is the description of the configuration of the liquid crystal display device. The technical feature of the present embodiment is that the touch signal transmission circuit 20 as a touch sensing is directly formed on the inner surface 12a of the upper substrate 1G of the liquid crystal display i. 200941305 The first electrode 21 and the second electrode 22 are insulated from each other by the black matrix of the color filter and the black matrix of the optical substrate. Therefore, when the finger is in contact with the upper substrate The capacitive effect produced by the touched position on the surface of the 1 将 will determine the position touched by the finger through the touch of the bus. Furthermore, due to the touch: the number f transmission circuit 2G is directly fabricated inside the liquid crystal display II 1, so that the thickness of the overall display can be reduced and the weight can be reduced, which is in line with the increasingly refined design of the electronic product design. . A sixth embodiment of the present invention is substantially the same as the first embodiment except that the first electrode 21 of the touch signal transmission circuit 20' of the second embodiment is combined with the first bonding pad. 23, the second electrode 22, and the relationship between the first δ outline 24, is made by the two electrodes sharing a single pad, of course, the number of electrodes can be changed between the electrode and a bonding pad as needed. Correspondence, this change does not cause touch sensing. The reason is that the electrode is densely covered and the finger touch area is large enough to correctly sense a specific position. In addition, 'the structure of the present invention can be further changed in the description of the first embodiment'. As shown in the seventh figure, instead of inserting one electrode 38 inside each of the light shielding elements 36, the electrodes 38 are spaced apart. The arrangement is embedded in the corresponding two-inch shading member 36. Each electrode 38 is electrically connected to a bonding pad 40, so that the expenditure of the electrode material can be appropriately reduced without affecting the touch effect. In the illustration of the embodiment, the structure of the seventh figure can be changed to that the two electrodes 38 share a bonding pad 40 (refer to the eighth drawing). The structure of the above liquid crystal display is a liquid crystal display structure in which a color filter layer is disposed on a substrate of 8 200941305 and then used in combination with a general thin film transistor array substrate, but in a COA (color filter cm array) process. The invention is applicable to the inner surface signal transmission circuit of the substrate above the liquid crystal display, and the color filter handle is further disposed. The above description is only for the preferred embodiment of the present invention. The specification and the scope of the patent application are all in the scope of the patent of the present invention. Attack, , and Q樽 change, rationality 200941305 [Simplified illustration of the drawings] The first figure is an exploded perspective view of the first preferred embodiment of the present invention. The second figure is a three-dimensional combination diagram of the first figure. The third figure is a partial cross-sectional view of the second figure. 5 is a partial perspective view showing the relationship between the touch signal transmission circuit and the shading element of the first preferred embodiment. The fifth figure is similar to the second figure, revealing that the touch ic is set on the flexible printed circuit board. The sixth figure is similar to the first figure, revealing that the two electrodes share a bonding pad. 10 The seventh figure is similar to the fourth figure. It is disclosed that the electrodes are placed in the space of the corresponding shading elements in a spaced arrangement, and each electrode is electrically connected to a bonding pad. The eighth figure is similar to the seventh figure, revealing that the two electrodes share a bonding pad. 200941305 [Description of main component symbols] 1 Liquid crystal display 10 Upper substrate 12 Transparent body 12a Inner surface Η Color filter layer 5 14a, 14b, 14c Red, green, blue filter unit 16 First shading element 18 Second shading element 20 ( 20') touch signal transmission circuit 21 (21') first electrode 22 (22') second electrode 23 (23') first bonding pad 24 (24') second bonding pad ί 26 lower substrate 27 transparent Body 28 film transistor 29 frame glue 30 wire 30a first contact 30b second contact 32 conductive layer 34 touch 1C 15 36 shading element 38 electrode 40 bonding pad 11