200809712 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種發光二極體（LED)顯示屏幕，尤指 一種可視實際需要擴充至所需尺寸，且可簡化配線的組合 式顯示屏幕。 【先前技術】 按大型顯示屏幕目前被廣泛的利用，其架設在室内或 Θ 室外以公開播放靜態圖文或動態影像，作廣告宣傳等大眾 傳播用途。如所屬領域具有通常知識者所知，除非是投影 式顯不器，否則絕大多數的大型顯示屏幕都是由複數呈矩 陣排列的發光單π，這些發光單元一般由紅綠藍三種顏色 的複數發光二極體所組成，利用三原色混合出不同顏色的 色光，以構成顯不畫面中的一個畫素。由於大型顯示屏幕 所而的毛光單元數量龐大，如逐一配置組裝時，其作業繁 複之程度可想而知。 、 為解決前述問題，美國第6,677,918號「發光二極體 貝示系、’'先」（如第八圖所示）提出一種解決方案，主要是將 稷數發光單TL安裝在一棒狀組合件（7〇)上，再以複數完成 組裝的組合件（7〇)作矩陣排列而組成一顯示屏幕。藉此可 達簡化裝配作業之目的。 而4述美國發明專利案固然在結構上以模組化設計簡 化了裝配作業，但在控制方式上依然未盡周延。 5月參閱第九圖所示，前述發明專利案係以複數組合件 4 200809712 (70)為單位’共同連接至一控制模組(8〇)，各控制模•且⑽) 分別連接至-主㈣統（圖中未示），藉此由主控系統送出 控制訊號至控制模組（8〇)，再由控制模組（8〇)分別送出驅 動訊號到所屬的各個組合件(7〇)，以達到驅動顯示之目的 。由於大型顯示屏幕所需的組合件（7〇)十分龐大，因而使 控制模組⑽）的數量亦十分可觀，而各個控制模組⑽）均 須透過配線接回主m因此其線路十分複雜，連接造 成裝配作業極為繁複。換言之，前述專利案即使簡化了& 構上的裝配作業，卻未解決其控制系統的配線問題。 【發明内容】 由上述可知，既有大型顯示屏幕之運用極為普遍，但 其^構與控制系統仍有未盡周延之處，故有待進一步檢討 ，並謀求可行的解決方案。 本I明主要目的在提供一種組合式顯示屏幕， 主要係由複數顯示模纽組成，每一顯示模組具有獨立的控 制驅動功能’而透過匯流排構成訊號連結，且每一顯示模 組與另一顯示模έ & 妹，— 、疋成結構連結時，亦可同時完成訊號連 猎b可有放解決傳統大型顯示屏幕訊號配 業不便等問題。 Ύ 述目的採取的主要技術手段係令前述組合 顯不屏幕包括有： 姑总“主連、、、°軸’係由-長條管材上並排設有複數接頭， / & Θ °又有匯流排，供連接影像控制系統，又接頭上 5 200809712 δ又有複數端子，各端子分別與匯流排連接； 、 複數晝素顯示串，每一畫素顯示串係分別由一個以上 的顯不模組串接構成，每-顯示模組係於-長條狀载體上 設有複數晝素單元，载體内部設有至少—控制器，該 器分別與各畫素單元連接；又載體兩端部分別設有相匹配 的連接埠，該連接埠係與㈣㈣的㈣胃連接，而載體 在至少-端上設有-接合構造，以便與相鄰的顯示模組作 。冓接σ，虽複數顯示模組以其載體兩端的連接埠相互 電連接’其内部的控制器亦共用同-訊號通道； 刖述各畫素顯示串係以末端的-顯示模組與主連結轴 :乍機構性接合，並同時構成訊號連結，換言之，—外部的 如像控制系統可透過主連結軸内的匯流排與各顯示模組内 =制器構成連線，進而驅動各顯示模組上的晝素單元依 日疋的方式顯示，以產生顯示畫面； 利用刚述設計，以複數顯示模組裝配成一所需尺寸大 =顯示屏幕時，在顯示模組與顯示模組之間完成訊號連 ^ 時完成機構性接合，其大幅簡化組裝作業，並 、义顯不屏幕訊號配線繁複、作業不便之問題。 ::晝素單元係由可產生紅/綠，藍色光的發光二極 :利用控制器控制各個發光二極體的亮度以混 產生不同的色光。 載體=示模組於載體兩端所設接合構造包括：形成於 用以丘:螺紋段及—具備匹配内螺紋的套環，該套環係 同螺接於兩載體接合一端的螺紋段上。 6 200809712 前述顯示模組於載體兩端所設接合構造包括：形成於 載體兩端的至少一凸榫及一具匹配的L形榫槽的卡掣環， 泫卡掣環係用以同時套接於兩載體接合一端上，並與其上 的凸榫卡接。 前述顯示模組之畫素單元係共同設於一電路板上。 【實施方式】 有關本發明之一較佳實施例，首先請參閱第一圖所示 ’主要係由複數畫素顯示串（100)與一主連結軸（2〇)組成一 顯示屏幕；每一畫素顯示串（1〇〇)係由一個以上的顯示模組 (10)串接而成。 請參閱第二圖所示，每一顯示模組（1〇)係於一中空管 狀的載體（11)内設有複數畫素單元（12)及一控制器（本圖中 未示），各畫素單元（彳2)由可發出紅/綠^/藍色光的發光二 極體組成，且分別、與控制器連接，透過控制器的驅動可以 產生不同冗度的光線並混合出不同的色光。請參閱第三圖 所示，前述畫素單元（12)係共同設於一電路板（13)上（畫素 單το (12)中的發光二極體僅為示意，非教示或暗示其具體 之數量），前述控制器亦設於該電路板（13)上，並透過電路 板（13)上设的線路佈局與各晝素單元（12)連接。但必須強 凋的疋各畫素單元（1 2)不必然共同設於電路板（1 3)上， 每一畫素單元（12)亦可個別構成單體形式，而一一安裝固 定至載體（11)上。 、 仍請參閱第二圖所示，該顯示模組（1〇)的載體（11}兩 200809712 端为叹有相互匹配的連接埠，於本實施例中，係於載體 (11)柒"卩5又複數端子孔（14彳），相對另端部則設以匹配的 複數端子（142)作為連接埠，該等端子孔（141)、端子（142) 係/刀別與載體⑴）内部的控制器構成電性連接。又顯示模 組（10)係利用該等連接埠與相鄰的顯示模組⑽構成電性 連接。 再者忒顯不杈組（10)於至少一端設接合構造，以便 2相鄰的顯示模組（10)或主連結軸⑽作機構性接合，本 貝β例中係令顯不模組（1Q)兩端分設接合構造，並提供 以下兩種可行的接合構造： 、第-種接合構造係如第二圖所示，主㈣在載體（川 接近立而部的兩端處分別形成_螺紋段（15)，並配合使用一 =螺紋的套環（16)，該㈣（16)之内徑係與載體⑴）外徑 -的累、、文& (15)匹配，以同時螺接在 相鄰-端的螺紋段(15)上m…广載體⑴） 稭此可維持相鄰顯示模組（10) 間的接合狀態。 ' v / 第二種接合構造係如第四圖所示，主要 接近端部的兩端處分別形成至 ） 配合使用-卡榫環⑽，更且體的Γ :的凸棒（17)，並 端的而i日姐 更’、體的况，该载體（11)係在兩 盘載體ί11、“ 棒（17) ’又卡辈環（18)内徑係 L來榫样Μ I匹配’其内壁的相對位置上分別形成有-轉槽（18〇)，該榫槽（18〇 有 (17)之外徑盥長产。告兩站 彳日冰係匹配於凸榫 待技沾 " 顯示模組（10)相互組接時，俜人 待接的兩载體⑴）係其相鄰 m 而的凸榫Ο7)同時對正且卡 8 200809712 入卡掣環（18)之榫槽（1 80)，在此同時，載體（11)兩端部的 連接埠亦同時構成電連接，隨後將卡掣環（1 8)旋轉一小角 度使載體（11)上的凸榫（1 7)由榫槽（18〇)的垂直端末端移至 火平蝙之末i而，藉此同時完成兩相鄰載體（1彳）間電連接與 機構性接合。 又數個顯示模組（1〇)組接成畫素顯示串（1〇〇)後，每一 晝素顯不串（100)其中一顯示模組（1〇)(較佳者為上端或下 端的顯不模組）的連接埠及接合構造與主連結軸（20)連結， 為此，该主連結軸（20)係於一長條管材上並排設有複數接 頭，忒接頭上亦設有前述的連接埠及接合構造，以便與晝 素顯示串（1GG)的-顯示模組（1Q)構成電性連接及機構性接 合0 再睛參閱第五圖，其上揭示有一顯示模組（1〇)内設控 制器與各晝素單元（12)間的連接關係及控制方式： 於本實施例中，一顯示模組（1〇)内計有16個晝素單元 (12)，该控制器（30)係以四組輸出埠（BiRiGi〜B4R4g4)及四 組控制蟑（SECTOR 〇〜SECT〇R 3)作分時（T|ME SHARING)矩陣式驅動，其中每―組輸料具有三個輸出 端以为別控制紅/綠/藍色光發光二極體。又如第六圖所 不’遠控制器（30)之四組控制埠（Sect〇R 〇〜SECTOR 3) 係以掃描方式交替地驅動各晝素單元（彳2)。 仍请參閱第五圖所示，該控制器（3〇)係以複數控制線 ( + 5V GMD、SCL、SDA、Sync)透過共用通道與主連結 軸（20)内的匯流排與外部的影像控制系統（4〇)連接（如第七 9 200809712 圖所不）。在此狀況下，外部的影像控制系統（4〇)係透過匯 流排之傳輸控制線SCL及SDA將控制指令分送至各顯示 模組（10)内的控制器（3〇)，並以匯流排之控制信號 做為所有顯示模組（1〇)的同步顯示控制，使得控制器（3〇) 控制該顯示模組（10)内各畫素單元（12)的亮度、顏色，藉 以產生一指定的圖像或文字。 則述貫施例係由複數顯示模組（10)串接組成一晝素單 元串（100)，惟在實際運用時不排除一晝素單元串（1〇〇)僅 由單一顯示模組（10)構成之態樣。 由上述况明可瞭解本發明各種較佳的實施態樣，該等 2顯不杈組為主所組成的顯示屏幕，由於顯示模組特殊的 '十使八凌配時在元成機構性接合時，亦同時完成訊號 連α以忒等设計已有效解決傳統大型顯示屏幕在訊號/ 機構連、、、α技術上的問題，並進—步令使用者輕易地可依實 際f要組合出所需尺寸的顯示屏幕，I由於構造單純，故 在衣配作業或維修作業上，#已提供極為顯著的實用 性與便利性。 【圖式簡單說明】 第圖·係本發明之立體圖。 I一圖係本發明顯示模組之一組合示意圖。 I圖係本發明顯不模組内設電路板之示意圖。 弟四圖：係本發明顯示模組又—組合示意圖。 第五圖：係本發明顯示模組之電路圖。 200809712 第六圖：係本發明之工作波形圖。 第七圖：係本發明之線路系統示意圖。 第八圖：係既有大型顯示屏幕之立體圖。 第九圖：係既有大型顯示屏幕之控制電路示意圖。 【主要元件符號說明】 (10)顯示模組 (12)晝素單元 (141)端子孔 (15)螺紋段 (17)凸榫 (180)榫槽 (30)控制器 (100)畫素顯示串 (11)載體 (13)電路板 (142)端子 (16)套環 (18)卡掣環 (20)主連結軸 (40)影像控制系統 11BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-emitting diode (LED) display screen, and more particularly to a combined display screen which can be expanded to a desired size and can simplify wiring. [Prior Art] Large-scale display screens are currently widely used, and they are installed indoors or outdoors to publicly play static images or motion pictures for publicity purposes such as advertising. As is known to those of ordinary skill in the art, unless it is a projection display, most large display screens are illuminating single π arranged in a matrix, which are generally composed of three colors of red, green and blue. The light-emitting diode is composed of three primary colors mixed with different colors of light to form a pixel in the display. Due to the large number of glazing units due to large display screens, the degree of cumbersome work can be imagined when the assembly is assembled one by one. In order to solve the above problems, U.S. Patent No. 6,677,918, "Light Emitting Bismuth, "First" (as shown in the eighth figure) proposes a solution, mainly to install the illuminating single TL in a rod combination. On the piece (7〇), the assembled assemblies (7〇) are arranged in a matrix to form a display screen. This will simplify the assembly process. While the four US invention patent cases simplify the assembly operation in a modular design, the control method is still not exhausted. Referring to the ninth figure in May, the aforementioned invention patents are collectively connected to a control module (8〇) in the unit of multiple assembly 4 200809712 (70), and each control module and (10) are respectively connected to the main (4) The system (not shown), whereby the control system sends the control signal to the control module (8〇), and then the control module (8〇) sends the drive signal to each of the associated assemblies (7〇). In order to achieve the purpose of driving display. Since the assembly (7 inches) required for a large display screen is very large, the number of control modules (10) is also considerable, and each control module (10) must be connected back to the main m through wiring, so that the wiring is very complicated. The connection caused the assembly work to be extremely complicated. In other words, the aforementioned patent does not solve the wiring problem of its control system even if it simplifies the assembling operation of the & SUMMARY OF THE INVENTION It can be seen from the above that the use of a large display screen is extremely common, but its structure and control system still have unresolved points, so further review is needed and a feasible solution is sought. The main purpose of the present invention is to provide a combined display screen, which is mainly composed of a plurality of display modules, each of which has an independent control driving function, and constitutes a signal connection through a bus bar, and each display module and another A display module & sister, -, when the structure is connected, can also complete the signal at the same time, can be used to solve the problem of traditional large-scale display screen signal inconvenience. The main technical means adopted by the above-mentioned purposes are to make the above-mentioned combination display screens include: A total of "main connection,,, and axis" are connected by a plurality of joints on the long pipe, / & amp ° and confluence Row, for connecting image control system, and connector 5 200809712 δ has a plurality of terminals, each terminal is connected with the busbar; and a plurality of pixel display strings, each pixel display string system is more than one display module The serial connection structure is characterized in that each display module is provided with a plurality of halogen elements on the long strip carrier, and at least a controller is disposed inside the carrier, the device is respectively connected with each pixel unit; and the two ends of the carrier are further There is a matching port which is connected to the (4) stomach of (4) (4), and the carrier is provided with a - joint structure at least at the end so as to be connected with the adjacent display module. The module is electrically connected to each other by a connection port at both ends of the carrier. The controller inside thereof also shares the same-signal channel; the display of each pixel display string is terminated by a display module and a main connecting shaft: And at the same time constitute a signal link, change The external image control system can be connected to the display module in the main connection axis by the bus bar in the main connection axis, thereby driving the pixel unit on each display module to display in a timely manner. Producing a display screen; using the design just described, when the plurality of display modules are assembled into a desired size = display screen, the signal is connected between the display module and the display module to complete the mechanical joint, which greatly simplifies the assembly operation. , and the display of the screen is complicated, and the operation is inconvenient. :: The element of the element is a light-emitting diode that can generate red/green and blue light: the brightness of each light-emitting diode is controlled by the controller to be mixed. The carrier structure of the display module at both ends of the carrier comprises: a collar formed by the thread: a threaded section and a collar having a matching internal thread, the collar being screwed to the end of the two carrier joints 6 200809712 The above-mentioned display module is provided with a joint structure at both ends of the carrier, comprising: at least one tenon formed at two ends of the carrier and a latching ring with a matching L-shaped tongue and groove, for the Leica ring system At the same time, the pixel unit of the display module is commonly disposed on a circuit board. The embodiment of the present invention is directed to a preferred embodiment of the present invention. First, please refer to the first figure, which is composed of a complex pixel display string (100) and a main connection axis (2〇) to form a display screen; each pixel display string (1〇〇) is composed of more than one The display module (10) is connected in series. Referring to the second figure, each display module (1〇) is provided with a plurality of pixel units (12) and a hollow tubular carrier (11). The controller (not shown in the figure), each pixel unit (彳2) is composed of a light-emitting diode that can emit red/green^/blue light, and is respectively connected to the controller, and can be generated by driving the controller. Different kinds of light and mixed different colors. Referring to the third figure, the aforementioned pixel units (12) are commonly disposed on a circuit board (13) (the light-emitting diodes in the pixel single το (12) are only schematic, non-teaching or suggesting their specific The controller is also disposed on the circuit board (13) and connected to each of the pixel units (12) through a circuit layout disposed on the circuit board (13). However, the pixel elements (1 2) which must be forced to pass together are not necessarily disposed on the circuit board (13), and each pixel unit (12) may also be individually formed into a single form, and one by one is fixed to the carrier. (11) Upper. Still referring to the second figure, the carrier (11} of the display module (1〇) has a matching connector 2008 in the 200809712 end, and in this embodiment, the carrier (11) 柒"卩5 has a plurality of terminal holes (14彳), and a matching plurality of terminals (142) are provided as connection ports at the opposite ends, and the terminal holes (141), terminals (142), and the carrier (1) are internally connected. The controller constitutes an electrical connection. Further, the display module (10) is electrically connected to the adjacent display module (10) by means of the ports. Furthermore, the display group (10) is provided with a joint structure at least one end so that two adjacent display modules (10) or the main connecting shaft (10) are mechanically joined, and in the present beta method, the module is displayed. 1Q) The joint structure is provided at both ends, and the following two possible joint structures are provided: The first type of joint structure is as shown in the second figure, and the main (four) is formed at the ends of the river. Threaded section (15), and used with a = threaded collar (16), the inner diameter of the (4) (16) is matched with the outer diameter of the carrier (1), and the text & (15) Connected to the adjacent-end thread segment (15) m... wide carrier (1)) This maintains the joint state between adjacent display modules (10). 'v / the second joint structure is as shown in the fourth figure, which is formed at the two ends of the end portion, respectively, to be used together with the - snap ring (10), and more of the body: the bump (17), and The end of the i-day sister is more ', the body condition, the carrier (11) is in the two-disc carrier ί11, "rod (17) 'and the card ring (18) inner diameter system L to match the Μ I match 'its The relative positions of the inner walls are respectively formed with a --turn groove (18〇), which has a long diameter of the outer diameter of the (17). The two stations are matched with the embossing of the next day. When the modules (10) are assembled with each other, the two carriers (1) to be connected to each other are adjacent to each other, and the tenons 7) are aligned at the same time and the card 8 200809712 enters the slot of the card ring (18) (1) 80) At the same time, the connection ports at the two ends of the carrier (11) also form an electrical connection, and then the card ring (18) is rotated by a small angle so that the tenon (17) on the carrier (11) is The vertical end of the gutter (18〇) is moved to the end of the fire bat i, thereby simultaneously completing the electrical connection and the mechanical joint between the two adjacent carriers (1彳). Several display modules (1〇) Grouped into a pixel display string (1 〇), after each element display (100) one of the display modules (1〇) (preferably the upper or lower display module) connection and joint structure and the main connection axis (20) For this purpose, the main connecting shaft (20) is attached to a long pipe and arranged with a plurality of joints, and the connecting joint is also provided with the aforementioned connecting jaw and joint structure so as to be aligned with the halogen display string (1GG). The display module (1Q) constitutes an electrical connection and a mechanical joint. Referring to the fifth figure, a display module (1〇) has a connection relationship between the controller and each of the pixel units (12). Control mode: In this embodiment, a display module (1〇) has 16 pixel units (12), and the controller (30) is controlled by four sets of output ports (BiRiGi~B4R4g4) and four groups. SEC (SECTOR 〇 ~ SECT 〇 R 3) is a time-sharing (T|ME SHARING) matrix drive, in which each group of feeds has three outputs to control the red/green/blue light-emitting diodes. In the sixth figure, the four sets of control devices (Sect〇R 〇~SECTOR 3) of the remote controller (30) alternately drive the individual singular orders in a scanning manner. (彳2). Still referring to the fifth figure, the controller (3〇) is connected to the main connecting shaft (20) through the shared channel (+ 5V GMD, SCL, SDA, Sync). The row is connected to an external image control system (4〇) (as shown in Figure 7 200809712). Under this condition, the external image control system (4〇) is controlled by the bus line transmission control lines SCL and SDA. The command is sent to the controller (3〇) in each display module (10), and the control signal of the bus bar is used as the synchronous display control of all the display modules (1〇), so that the controller (3〇) controls The brightness and color of each pixel unit (12) in the display module (10) are used to generate a specified image or text. The illustrated embodiment is composed of a plurality of display modules (10) connected in series to form a unit cell string (100), but in practice, it is not excluded that a single unit string (1〇〇) is composed of only a single display module ( 10) The form of composition. From the above, various preferred embodiments of the present invention can be understood, and the display screens composed of the two display groups are mainly composed of the special function of the display module. At the same time, the design of the signal, such as the alpha and the 已, has effectively solved the problems of the traditional large-scale display screen in the signal/institution, and the α technology, and the user can easily combine the actual f The display screen of the required size, I has a very simple practicality and convenience in the clothing matching work or the maintenance work due to the simple construction. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of the present invention. I-picture is a schematic diagram of a combination of one of the display modules of the present invention. I is a schematic diagram of a circuit board built in the module of the present invention. Four diagrams of the brother: A schematic diagram of the display module of the present invention. Fig. 5 is a circuit diagram of a display module of the present invention. 200809712 Fig. 6 is a waveform diagram of the operation of the present invention. Figure 7 is a schematic diagram of the wiring system of the present invention. Figure 8: A perspective view of a large display screen. The ninth picture is a schematic diagram of the control circuit of a large display screen. [Main component symbol description] (10) Display module (12) Alizarin unit (141) Terminal hole (15) Thread segment (17) Convex (180) Groove (30) Controller (100) Pixel display string (11) Carrier (13) Circuit board (142) Terminal (16) Collar (18) Clamping ring (20) Main connecting shaft (40) Image control system 11