200839689 九、發明說明： 【發明所屬之技術領域】 本發明是一種控制裝置，特別是一種用來控制複數個 發光元件產生複數個光源之發光元件控制裝置。 【先前技術】 和一般照明光源比起來，發光二極體(Light Emitting # Diode，LED)的壽命大約較一般照明光源高出50〜100倍， 但耗費的電量僅為一般照明光源的1/3〜1/5，此外，發光二 極體具有高效能、低耗電、高反應速度、低發熱的特性以 及小體積的優點，能配合各種應用設備小型化的趨勢，所 以’發光二極體目前已被廣泛的應用在各種領域的電路以 及各類顯示器上。 以往發光二極體的控制方式通常為一個晶片輸入端連 接一顆發光二極體，如果顯示裝置具有複數顆發光二極 體，則必須使用和發光二極體相同數目之輸人端才能使全 4的發光—極體進行發光。請參閱第丨圖，第丨圖為習知 發光二極體之控制電路的示意圖。如第1圖所示，每-顆 發？二極體1〇、12、14皆連接到-個輸入端A、B、C， 以提供順向電w ’再利用控制器分別控制開關16、18、2〇 >、輸A B c之間的導通或斷路，即可控制發光二極 體10 I2、U進行發光與否，利用此種方式雖可以控制每 一顆發光二極體10、H Λ β γ ^ 12、14疋否發光，但卻需要數量龐大 5 200839689 的輸入端及開關，相對的電路體積亦會非常大，因此，此 種控制方式並不符合現今積體電路小型化的趨勢。 另一種發光二極體控制方式則是利用—個輸入端連接 多顆發光二極體，如此可以節省輸入端的個數。請參閱第 2圖，第2圖為習知另一種發光二極體之控制電路的示音 圖。如第2圖所示，於此種作法中具有兩種不同顏色之發 春 光二極體，其分別為產生綠色（Green)光源之發光二極體 30、32以及產生琥珀色(Amber)色光源之發光二極體、 36，此種方式改變以往單個輸入端連接單顆發光二極體的 方式，利用兩個輸入端D、E以及四個開關4()、42、44、 46分別控制發光二極體3〇、32以及發光二極體％％進 行發光，舉例說明，當要讓發光二極體3〇發出綠色光源 時，可將開關40、44導通，開關42、46斷路，由輸入端 D提供順向電流給發光二極體3〇,則可使發光二極體 φ 發出綠色光源，而若要讓發光二極體34、36同時發出琥珀 色光源，則僅需將開關42、44、46導通，而開關4〇斷路 ‘ 即可，此種控制方式相較於一個輸入端連接一顆發光二極 體的方式，可以減少輸入端及開關的個數，進一步可以減 少電路的體積。 / 雖然上述控制電路可以減少電路的體積，但在目前電 子產品功能越來越強大的趨勢，如何更有效減少電路體積 以及晶片ic所需要使用的腳位，讓晶片IC有多餘的腳位 200839689 能提供更多*_功能，已成為—種重要的發展課題 【發明内容】 ^發明之目的在提供—種控制電路，可以有效控 ::::::所需的輸入端以及開關，進-步達成縮小電 產二ί:月提供一種控制裝置’用來控制複數個發光元件 複數個光源，該控制裝置包含一第一電流源、一第一 ^關：至少一第二電流源、至少一第二開關、至少一第一 二及ΐ少一第二發光元件。第一電流源用以產生 切換於，=°弟—開關用以根據—第—控制訊號選擇性的 制㈣独 弟二開關用以根據一第二控 擇性的切換於該至少—第二電流源及該接地端。 關ί門：發光元件輕接於該第一開關及該至少-第二開 第接收該第—電流，產生H源。至少- H Χ 70件耦接於該第一開關及該至少一第_門關之Ρ气 且與該至少-第-發光元 _—開關之間 第二電流，產生一第二朵：向並聯’用以接收該至少-少一第二門關、 Λ、，其中藉由該第一開關盘該至 -第二;二一發光元件及該至少 先源及該弟二光源。 為讓本發明之上述和其他 目的、特徵、和優點能更明 7 200839689 顯易It，下文特舉出較佳實施例，並配合所附圖式，作詳 細說明如下： 【實施方式】 請參閱第3圖，第3圖為根據本發明之控制裝置的一 實施例之示意圖。如第3圖所示，本發明之一種發光元件 ㈣裝置1GG，仙來控㈣數個發光元件產生複數個光 源:控制裝置1〇〇包含一第一電流源F、一第一開關54、 • -第二電流源G、第二開關56、至少一第一發光元件5〇 以及i少一第二發光元件52。第一電流源F用以產生一第 電",L 11，第一電流源G則用以產生一第二電流12。 弟開關Μ係選擇性的切換於該第一電流源ρ及一接 地端，山藉此導通第一電流源F以輸入第一電流^或導通該 接也進行接地。第二開關56則選擇性的切換於第二電流 源G及接地端，用以輸入第二電流込或接地。至少一第一 电光7〇件50摩禺接於第一開_ 54及第二開_ %之間，用以 當該第-開關54切換至第一電流源 弟i關54及該第二開關56之間且與該至少—第一發光 =件5G反向並聯’㈣於第二關56受第二控制訊號控 二而切換至第二電流源G時，接收第二電流匕，以產生一 ’其中猎由控制該第—開關54與該第二開關56 刀弟-電流源、第二電流源以及接地端之間切換，即 可分別控制該至少一第一發光元件50及該至少一第二發 200839689 光元件52產生第一光源及該第二光源。 此外，本發明之控制裝置另包含一控制器（圖未示)，耦 接於第一開關54及第二開關56，用以產生一第一控制訊 號以控制第一開關54於第一電流源F及接地端間進行切 換，控制器（圖未示）亦會產生一第二控制訊號以控制第二 開關56於第二電流源G及接地端間進行切換。 當第一控制訊號控制第一開關54切換至第一電流源 G，而第二控制訊號控制第二開關56切換至接地端時，該 至少一第一發光元件50係接收第一電流h，以產生第一光 源。而當第一控制訊號控制第一開關54切換至接地端，第 二控制訊號控制第二開關56切換至第二電流源G時，該 至少一第二發光元件52係接收第二電流12,以產生第二光 源0 其中該至少一第一發光元件50及第二發光元件52中 每一第一發光二元件及第二發光元件係為一發光二極體 (light emitting diode，LED)。而於一實施例中，該至少一第 一發光元件50係為一發出綠色光源之發光二極體，其所發 出之第一光源係為一綠色光源。該至少一第二發光二極體 52係為一發出琥珀色光源之發光二極體，其所發出之第二 光源係為一珑珀色（Amber)光源。 9 200839689 請參閱第4圖，第4圖為根據本發明之控制裝置的另 一實施例之示意圖。如第4圖所示。本實施例中係用四個 第一發光元件（60、64、68、72)、四個第二發光元件（62、 66、70、74)、四個第二電流源(J、K、L、M)以及四個第二 開關（82、84、86、88)為例，來說明本發明之控制裝置1.20 的運作。 其中四個第一發光元件60、64、68、72係為發出綠色 光源之發光二極體，產生的第一光源為綠色，而四個第二 發光元件62、66、70、74則為發出琥珀色光源之發光二極 體，產生的第二光源則為琥珀色。第一電流源Η用以產生 一第一電流In，第一開關80則用以根據控制器（圖未示） 產生之第一控制訊號，選擇性的於第一電流源Η或接地端 間進行切換。四個第二電流源J、Κ、L、Μ則用以產生四 個第二電流Ι21、Ι22、、〗24 ’控制器（圖未不）亦會產生四 個第二控制訊號分別控制四個第二開關82、84、86、88。 以下說明控制電路120之運作方式，當要使四個第一 發光元件60、64、68、72中第二個第一發光元件64發光 時，必須將第一開關80切換至第一電流源Η以輸入順向 之第一電流Iu，同時必需將第二個第二開關84接地，即 可使第二個第一發光元件64產生綠色的第一光源，而若要 使第二個第二發光元件66產生第二光源，則必須將第一開 關80切換至接地端接地，而將第二個第二開關84切換至 200839689 第二個電流源K，如此即可控制第二個第二發光元件66產 生琥珀色的第二光源。 若要使第一、第三個第一發光元件60、68發光時，則 要將第一開關80切換至第一電流源Η以輸入順向之第一 電流In，同時必需將第一、三個第二開關82、86接地， 即可使第一、第三個第一發光元件60、68產生綠色的第一 光源，以此類推，藉由分別控制第一開關80及四個第二開 — 關82、84、86、88，可以讓八顆發光二極體60〜74分別 產生第一光源及第二光源。 此外，當必須同時使兩種不同形式之發光二極體產生 不同顏色之第一光源及第二光源時，本發明係可利用分時 (Time sharing)的方式，先產生一種光源後，控制器隨即控 制第一開關80及第二開關82、84、86、88進行切換以產 _ 生第二種光源，由於人眼的視覺暫留時間約為廿四分之一 秒，只要控制兩種光源在廿四分之一秒内相繼發光，人的 眼睛則無法察覺，因此雖然兩種光源並未同時發光，但人 眼於視覺上的觀察卻是兩種光源同時存在，使用此種方 式，即能滿足同時顯示兩種光源的需求。 本發明中使用發出綠色及琥珀色光源之發光二極體僅 為一實施例，並不以此兩種顏色為限，另第一電流源及第 二電流源之功用為提供順向電流與第一發光二極體及第二 11 200839689 發光二極體即可，兩者可為同一個冤流源，只需將連接方 式與發光二極體同向，提供順向電流輪入至第_ 一 才系 流源 體及第二發光二極體即可’並不偈限於使用兩種不 、治馮。 乂电 本發明之控制裝置係將兩種不同型式之發光_極_ 向並聯，再利用控制第一開關及第二開關分別於第一電〇 源、弟-電流源及接地端之間進行切換，產生兩種 A、 式之發光二極體所需的順向電流’如此即可护^制兩 一 卫市J兩種不同 型式之發光二極體產生不同光源’可以減少以往需要 接腳的方式，利用本發明之控制裝置僅需5個晶Z U夕 可控制八顆發光二極體，不僅可以有效縮小電^的即 以 更可以減少所需使用的晶片腳位，讓多餘的晶片腳位^ ’ 提供更多的功能。 雖然本發明已以較佳實施例揭露如上，然其並^ 限定本㈣’任何熟習此技藝者’在不脫離:創作：：： 和範圍内’當可作些許之更動與潤飾，因此本創作之= 範圍當視後附之申請專利範圍所界定者為準。 € 【圖式簡單說明】 第1圖為習知發光二極體之控制電路的示意圖。 第2圖為習知另-種發光二極體之控制電路的示意 200839689 第3圖為根據本發明之控制裝置的一實施例之示意 圖。 第4圖為根據本發明之控制裝置的另一實施例之示 意圖。 【主要元件符號說明】 100、120〜控制裝置 16、18、20、40、42、44、46〜開關 _ 10、12、14、30、32、34、36〜發光二極體 F、 Η〜第一電流源 G、 J、Κ、L、Μ〜第二電流源 120〜控制裝置 50、60、64、68、72〜第一發光元件 52、62、66、70、74〜第二發光元件 54、80〜第一開關 56、82、84、86、88〜第二開關 • h、Ιη〜第一電流 工2、工21、】22、123、124〜第二電流 13200839689 IX. Description of the Invention: The present invention relates to a control device, and more particularly to a light-emitting device control device for controlling a plurality of light-emitting elements to generate a plurality of light sources. [Prior Art] Compared with general illumination sources, the life of Light Emitting Diodes (LEDs) is about 50 to 100 times higher than that of general illumination sources, but the power consumption is only 1/3 of that of general illumination sources. ~1/5, in addition, the LED has the advantages of high efficiency, low power consumption, high reaction speed, low heat generation and small volume, which can match the trend of miniaturization of various application devices, so the 'light emitting diode is currently It has been widely used in various fields of circuits and various types of displays. In the past, the control method of the light-emitting diode is usually one light-emitting diode connected to one input end of the chip. If the display device has a plurality of light-emitting diodes, the same number of input terminals as the light-emitting diode must be used to make the whole 4 luminescence - the polar body emits light. Please refer to the figure, which is a schematic diagram of a conventional control circuit for a light-emitting diode. As shown in Figure 1, every one hair? The diodes 1, 12, and 14 are all connected to - input terminals A, B, and C to provide forward power w 'reuse controller to control switches 16, 18, 2 〇 >, and between AB c By turning on or off, it is possible to control whether the light-emitting diodes 10 I2 and U emit light or not. In this way, it is possible to control whether each of the light-emitting diodes 10, H Λ β γ ^ 12, 14 发光 emits light, but However, a large number of input terminals and switches of the 200839689 are required, and the relative circuit volume is also very large. Therefore, this control method does not conform to the trend of miniaturization of current integrated circuits. Another type of LED control method uses multiple inputs to connect multiple LEDs, which saves the number of inputs. Please refer to FIG. 2, which is a schematic diagram of a control circuit of another conventional light-emitting diode. As shown in FIG. 2, in this method, there are two different color hair spring diodes, which are respectively a light source diode 30, 32 for generating a green light source and an amber color light source. The light-emitting diode, 36, changes the manner in which a single input terminal is connected to a single light-emitting diode in the past, and uses two input terminals D, E and four switches 4 (), 42, 44, 46 to respectively control the light. The diodes 3〇, 32 and the light-emitting diode %% emit light. For example, when the light-emitting diodes 3 are to emit a green light source, the switches 40 and 44 can be turned on, and the switches 42 and 46 can be turned off by the input. The terminal D provides a forward current to the light-emitting diode 3〇, so that the light-emitting diode φ emits a green light source, and if the light-emitting diodes 34 and 36 are simultaneously emitting an amber light source, only the switch 42 is needed. 44, 46 is turned on, and the switch 4 is open, 'this control mode can reduce the number of input terminals and switches compared with the way one input terminal is connected to one light-emitting diode, which can further reduce the volume of the circuit. . / Although the above control circuit can reduce the size of the circuit, but in the current trend of electronic products becoming more and more powerful, how to effectively reduce the circuit volume and the required position of the chip ic, so that the chip IC has redundant feet 200839689 can Providing more *_ functions has become an important development topic [invention] The purpose of the invention is to provide a kind of control circuit that can effectively control the required input and switch, and step-by-step. Reaching the reduction of electricity production: a control device is provided to control a plurality of light-emitting elements, the plurality of light sources, the control device comprising a first current source, a first switch: at least one second current source, at least one Two switches, at least one first two, and one second light emitting element. The first current source is configured to switch to, and the switch is configured to switch to the at least one second current according to a second control according to the fourth control signal selectivity (4) Source and the ground. A gate is connected to the first switch and the at least-second to receive the first current to generate an H source. At least - H Χ 70 is coupled to the first switch and the at least one first gate and the second current between the at least - first - illuminator _ switch, generating a second: parallel 'to receive the at least one less than a second gate, Λ, wherein the first switch panel is to the second; the second light emitting element and the at least the first source and the second light source. The above and other objects, features, and advantages of the present invention will become apparent from the following description. Fig. 3, Fig. 3 is a schematic view showing an embodiment of a control device according to the present invention. As shown in FIG. 3, a light-emitting device (4) device 1GG of the present invention controls a plurality of light-emitting elements to generate a plurality of light sources: the control device 1A includes a first current source F, a first switch 54, and a second current source G, a second switch 56, at least one first illuminating element 5 〇 and i less than a second illuminating element 52. The first current source F is used to generate a first electric current, and the first current source G is used to generate a second current 12. The switch is selectively switched to the first current source ρ and a ground terminal, and the mountain is turned on to connect the first current source F to input the first current or to conduct the ground. The second switch 56 is selectively switched to the second current source G and the ground for inputting the second current or ground. The at least one first electro-optic device 7 is coupled between the first opening _ 54 and the second opening _ % for switching the first switch 54 to the first current source and the second switch 54 When the second current switch 56 is switched to the second current source G and is switched to the second current source G, the second current 匕 is received between the 56 and the at least the first illuminating device 5G. The at least one first illuminating element 50 and the at least one of the first illuminating elements 50 and the at least one of the first illuminating elements 50 can be respectively controlled by switching between the first switch 54 and the second switch 56 - the current source, the second current source and the ground The second light 200839689 light element 52 produces a first light source and the second light source. In addition, the control device of the present invention further includes a controller (not shown) coupled to the first switch 54 and the second switch 56 for generating a first control signal to control the first switch 54 to the first current source. Switching between F and ground, the controller (not shown) also generates a second control signal to control the second switch 56 to switch between the second current source G and the ground. When the first control signal controls the first switch 54 to switch to the first current source G, and the second control signal controls the second switch 56 to switch to the ground, the at least one first illuminating element 50 receives the first current h to A first light source is generated. When the first control signal controls the first switch 54 to switch to the ground, and the second control signal controls the second switch 56 to switch to the second current source G, the at least one second illuminating element 52 receives the second current 12 to The second light source 0 is generated. Each of the first light emitting element 50 and the second light emitting element 52 is a light emitting diode (LED). In one embodiment, the at least one first light-emitting element 50 is a light-emitting diode that emits a green light source, and the first light source emitted is a green light source. The at least one second light-emitting diode 52 is a light-emitting diode that emits an amber light source, and the second light source emitted by the second light-emitting diode 52 is an Amber light source. 9 200839689 Please refer to Fig. 4, which is a schematic view showing another embodiment of the control device according to the present invention. As shown in Figure 4. In this embodiment, four first light-emitting elements (60, 64, 68, 72), four second light-emitting elements (62, 66, 70, 74), and four second current sources (J, K, L) are used. , M) and four second switches (82, 84, 86, 88) are taken as an example to illustrate the operation of the control device 1.20 of the present invention. The four first light-emitting elements 60, 64, 68, 72 are light-emitting diodes emitting a green light source, the first light source generated is green, and the four second light-emitting elements 62, 66, 70, 74 are emitted. The light source of the amber light source produces a second light source that is amber. The first current source Η is used to generate a first current In, and the first switch 80 is configured to be selectively connected between the first current source 接地 or the ground according to a first control signal generated by a controller (not shown). Switch. The four second current sources J, Κ, L, Μ are used to generate four second current Ι 21, Ι 22, and 24 ' controllers (not shown), and four second control signals are generated to control four The second switch 82, 84, 86, 88. The operation of the control circuit 120 will be described below. When the second first light-emitting element 64 of the four first light-emitting elements 60, 64, 68, 72 is to be illuminated, the first switch 80 must be switched to the first current source. By inputting the forward first current Iu and simultaneously grounding the second second switch 84, the second first light-emitting element 64 can be made to generate a green first light source, and the second second light-emitting source can be made. The element 66 generates a second light source, and the first switch 80 must be switched to ground to ground, and the second second switch 84 is switched to the second current source K of 200839689, so that the second second light-emitting element can be controlled. 66 produces a second source of amber. To cause the first and third first light-emitting elements 60, 68 to emit light, the first switch 80 is switched to the first current source Η to input the forward first current In, and the first and third The second switches 82, 86 are grounded, so that the first and third first light-emitting elements 60, 68 generate a green first light source, and so on, by controlling the first switch 80 and the four second switches respectively. - Off 82, 84, 86, 88, which allows eight light-emitting diodes 60-74 to generate a first light source and a second light source, respectively. In addition, when two different forms of light-emitting diodes must be simultaneously generated with the first light source and the second light source of different colors, the present invention can utilize a time sharing method to generate a light source after the controller Then, the first switch 80 and the second switch 82, 84, 86, 88 are controlled to switch to generate a second light source. Since the visual persistence time of the human eye is about one quarter of a second, as long as the two light sources are controlled. In the quarter of a second, the human eyes are not noticeable, so although the two light sources do not emit light at the same time, the human eye observes the two light sources at the same time. In this way, Can meet the needs of simultaneously displaying two light sources. In the present invention, the light-emitting diodes emitting green and amber light sources are only one embodiment, and are not limited to the two colors. The functions of the first current source and the second current source are to provide forward current and the first A light-emitting diode and a second 11 200839689 light-emitting diode can be the same turbulent source, and the connection mode is the same as that of the light-emitting diode, and the forward current is turned into the first one. Only the source body and the second light-emitting diode can be used. The control device of the present invention switches two different types of light-emitting_poles in parallel, and then controls the first switch and the second switch to switch between the first power source, the younger current source and the ground. , the forward current required to produce two kinds of A, the type of light-emitting diodes, so that the two different types of light-emitting diodes can produce different light sources, which can reduce the need for pins in the past. In the manner of using the control device of the present invention, only five crystal ZUs can be used to control eight light-emitting diodes, which can not only effectively reduce the number of wafers, but also reduce the number of wafer pins required for use, and allow redundant wafer pins. ^ ' Provide more features. Although the present invention has been disclosed above in the preferred embodiments, it is intended to limit the invention to any one skilled in the art that does not deviate from: creation::: and within the scope of the invention. The scope of the application is subject to the definition of the scope of the patent application. € [Simple description of the drawing] Fig. 1 is a schematic diagram of a control circuit of a conventional light-emitting diode. Fig. 2 is a schematic view showing a control circuit of a conventional light-emitting diode. 200839689 Fig. 3 is a schematic view showing an embodiment of a control device according to the present invention. Figure 4 is a schematic illustration of another embodiment of a control device in accordance with the present invention. [Description of main component symbols] 100, 120 to control device 16, 18, 20, 40, 42, 44, 46 to switch_10, 12, 14, 30, 32, 34, 36 to light-emitting diode F, Η~ First current source G, J, Κ, L, Μ 〜 second current source 120 〜 control device 50, 60, 64, 68, 72 〜 first illuminating element 52, 62, 66, 70, 74 〜 second illuminating element 54, 80~first switch 56, 82, 84, 86, 88~second switch•h, Ιη~first current work 2, work 21, 22, 123, 124~ second current 13