200917190 九、發明說明： 【發明所屬之技術領域】 本發明係與電子電路有關，特別是指一種色序法與區 域控制法之led驅動裝置。 5【先前技術】 按’在傳統的LCD顯示技術中，係由背光燈發出白光， 再經由彩色濾光片來分成紅綠藍三個顏色。然而彩色遽光 片的成本較高，且其光利用率僅有約37%，因此新一代的 LCD顯示技術’即有將彩色遽光片去除以減少成本並提高 1〇亮度者。 現有的LCD顯示技術中，有色序法之技術，其主要係 由紅綠藍三色之背光燈循序發光，以快速的轉換做加法混 色來得到任意的有色光，因此不需要彩色濾光片。為了避 免人類肉眼察覺，每段背光源之發光時間必須非常短暫， 15因此所選擇的發光源必須能夠在短時間内做快速的切換。 因此，具有反應速度快、不含汞等特性的lED即比較適合 做為色序法的背光燈。 目前已知之色序法，主要有全晝面色序法以及掃瞄式 色序法兩種。 20 纟畫面之色序法，其各個LED串列的驅動電流係如第 一圖所不’其中’/脚是掃瞄頻率代表第〇-3區紅 色LED陣列的驅動電流，/G0_/⑺代表第區綠色陣 列的驅動電流ϋ代表第〇_3區藍色LED陣列的驅動 電流。該第-圖中所示為各個LED陣列的最大導通時間， 4 200917190 可根據晝面所需亮度’以脈波寬度調變的方式來個別縮短 導通時間以降低其亮度。前1 /(3ΛΜ)的時間内只有紅光LED 導通，往後則由綠光和藍光LED循序導通。 而掃瞄式色序法，如第二圖所示之色序法LED背光燈 5之驅動電流波形示意圖。#中，^是掃胳頻¥，亦即電視 切換晝面之頻率，一般為60Hz或其倍數。面板掃瞄次數是 指從上到下，第〇區到第3區背光燈被掃瞄的次數，例如 N〇-N3代表背光燈第〇_3區被掃瞄第N次的時間區間， N0+l-N3+l代表背光燈第〇_3區被掃瞄第N+1次的時間區 1〇間，以此類推。代表第〇·3區紅色[ED陣列的驅動 電級代表第0-3區綠色LED陣列的驅動電流， 代表第0-3區藍色LED陣列的驅動電流。由於液晶面板通 吊私用由上往下的掃瞒方式循序控制液晶分子的偏轉角 度’因此$光燈亦以此法循序發光。以第Q區被掃目苗第N〇200917190 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to an electronic circuit, and more particularly to a LED driving device of a color sequential method and a regional control method. 5 [Prior Art] Press 'In the conventional LCD display technology, white light is emitted by the backlight, and then divided into red, green and blue colors by color filters. However, the cost of color calenders is relatively high, and its light utilization rate is only about 37%, so the new generation of LCD display technology has the effect of removing color calenders to reduce cost and increase brightness by one. In the existing LCD display technology, there is a technique of color sequential method, which mainly uses a backlight of red, green and blue to sequentially emit light, and performs additive color mixing with fast conversion to obtain arbitrary colored light, so that a color filter is not required. In order to avoid human perception, the illumination time of each backlight must be very short, 15 so the selected illumination source must be able to switch quickly in a short time. Therefore, lED, which has a fast reaction speed and does not contain mercury, is suitable as a backlight for color sequential method. Currently known color-sequence methods are mainly full-face color order method and scanning type color-sequence method. 20 纟 screen color sequence method, the drive current of each LED string is as shown in the first figure, where '/ the foot is the scan frequency represents the drive current of the red LED array of the 〇-3 area, /G0_/(7) stands for The driving current ϋ of the green array of the first region represents the driving current of the blue LED array of the third 〇3 region. This figure shows the maximum on-time of each LED array. 4 200917190 can shorten the on-time individually to reduce the brightness according to the required brightness of the facet. Only the red LED is turned on during the first 1 / (3 ΛΜ) time, and the green and blue LEDs are sequentially turned on later. The scanning color sequence method, as shown in the second figure, shows the driving current waveform of the color sequential method LED backlight 5 . #中,^ is the sweep frequency ¥, which is the frequency at which the TV switches the face, usually 60Hz or multiples thereof. The number of panel scans refers to the number of times the backlight from the third to the third zone is scanned from top to bottom. For example, N〇-N3 represents the time interval in which the backlight _3 is scanned for the Nth time, N0 +l-N3+l represents the backlight 〇3 area is scanned for the N+1th time zone 1 ,, and so on. Represents the red zone of Zone 〇3 [The drive stage of the ED array represents the drive current of the green LED array in Zone 0-3, representing the drive current of the blue LED array in Zone 0-3. Since the liquid crystal panel is used for the purpose of controlling the deflection angle of the liquid crystal molecules sequentially from the top to the bottom of the broom, the light is also sequentially illuminated by this method. The second district of the Q-zone was swept
15 -人且發紅色光時為例，當第〇區被掃瞒帛次時，原紅 色發光源必須停止發光，之後改以綠色光源發光。同樣的， 當同-區域被掃目苗第心2次時，原綠色發光源必須停止發 光，之後改以藍色光源發光。同樣的，當同一區域被掃瞒 第N0+3次時’原藍色發光源必須停止發光，之後改以红色 光源發光。因此在-個掃目苗週期下，紅綠藍光源係循序發 光，呈現色序法的發光方式。 另外 * rr的顯示技術中，尚有區域控制的顯示技 術。其主要疋基於背光燈的亮度—致，晝面的亮暗程度是 由液晶分子的鉍轉角度來控制的’而區域控制是將 畫面切 5 200917190 吾1J成數個區域，並依照其各自的亮暗程度來改變背光燈的 亮度，此舉可大幅提昇液晶面板的亮暗對比，同時降低背 光4的消耗功率。右採用區域控制顯示技術，則背光燈的 響應必須盡可能的加快來縮短暫態時間，進而增進亮度的 5準確度。因此，led比較適合作為區域控制顯示技術的背 光燈 第三圖即顯示了一種習知LED全畫面色序法背光燈區 域控制驅動器架構圖與驅動1C之内部架構圖，其中背光燈 劃分為四個區域，各個區域的背光燈由紅綠藍光led陣列 10各一串所組成。驅動IC的架構主要由穩流器、電流鏡、類 比閘道開關、緩衝暫存器與工作暫存器所組成。該驅動Ic 具有複數接腳，其中，接腳/仙_/们代表第〇_3區紅色led 陣列的電流輸入端，/go-/gj代表第0_3區綠色LED陣列的 電流輸入端，/洲-/^代表第〇_3區藍色LED陣列的電流輪 入端。接腳Syn為同步訊號輸入端。接腳[故也為觸發訊號 輸入端。接腳SPI(Serial Port interface)為串列埠介面數位訊 號輸入端。接腳SP0則為串列埠介面數位訊號輸出端。接 腳R-EXT為電阻外接端。接腳En為致能訊號輸入端。接 腳Vcc為供應電壓之輸入端。接腳GND為接地端。驅動汇 2〇 -共有I2個通暹’每個通道個別達成脈波寬度調變控制， 以實現區域控制的發光方式若採用色序法顯示技 術’在同-時間内，各區都僅有一種顏色之腳導通，因 此K：内部僅有三分之-的通道執行動作，若能使每一個紅 綠藍光LED陣列共用同—個通道，則能大幅減少電流鏡、 200917190 類比開關、以及暫存器的位元數，進而降低其成本。 【發明内容】 本發明之主要目的在於提供一種色序法與區域控制法 5之LED ,驅動裝置，其提供區域控制顯示技術的㈣驅動裝 置，亚可用來配合全晝面色序法及掃目苗式色序法的驅動電 路。 本發明之次一目的在於提供一種色序法與區域控制法 之LED驅動裝置’其可使面板各區域的背光燈能依據晝面 1〇亮暗程度來調整亮度，並以循序的方式散發出紅綠藍^各 色光，且同時穩定各串LED陣列的驅動電流。 緣是，為了達成前述目的，依據本發明所提供之—種 ^序法與區域控制法之LED驅動裝置，包含有：複數類比 多工器，具有複數電流輸入端，以及具有複數控制輸入端； 15複數電流鏡，分別電性連接於各該類比多工器；一穩流器i 電性連接於該等電流鏡，該穩流器具有一外接端，用二連 接—電阻；複數類比閘道開關，分別電性連接於各該電流 鏡；一工作暫存器，電性連接於該等類比閘道開關f = ^ 作暫存器具有一觸發端，以及具有複數控制端電性連接於 2〇该等類比多工器之控制輸入端；以及一緩衝暫存器，具有 —串列埠介面數位訊號輸入端以及一串列埠介面數位訊號 輸出端，且該緩衝暫存器具有複數資料輸出端電性連接於 该工作暫存器。藉此，可達成區域控制且適用於全書面色 序法及掃瞄式色序法的顯示技術’並且可進而精準的控制 200917190 電流以調整LED的亮度。 【實施方式】 為了詳細說明本發明之技術特點所在，茲舉以下之二 5較仏貝把例並配合圖式說明如后，其中： 如第四圖所示’本發明第一較佳實施例所提供之一種15 - For example, when a person emits red light, when the third area is swept, the original red light source must stop emitting light, and then change to a green light source. Similarly, when the same-region is scanned twice, the original green light source must stop emitting light, and then the blue light source is illuminated. Similarly, when the same area is broomed for the first N0+3 times, the original blue light source must stop emitting light, and then the red light source is illuminated. Therefore, under a sweeping seedling cycle, the red, green and blue light sources emit light sequentially, presenting the color sequential method of illumination. In addition, * rr display technology, there are regional display technology. The main reason is based on the brightness of the backlight, the brightness of the face is controlled by the angle of rotation of the liquid crystal molecules, and the area control is to cut the picture into several areas, and according to their respective bright The degree of darkness changes the brightness of the backlight, which greatly increases the contrast of the liquid crystal panel and reduces the power consumption of the backlight 4. With the area control display technology on the right, the response of the backlight must be accelerated as much as possible to shorten the transient time, thereby improving the brightness accuracy. Therefore, the LED is more suitable as the backlight of the area control display technology. The third figure shows a conventional LED full-screen color-sequence backlight area control driver architecture diagram and the internal architecture diagram of the driver 1C, in which the backlight is divided into four In the area, the backlights of the respective areas are composed of a string of red, green and blue LED arrays 10. The architecture of the driver IC is mainly composed of a current regulator, a current mirror, an analog gate switch, a buffer register and a work register. The driver Ic has a plurality of pins, wherein the pins / _ _ represent the current input of the red LED array of the third _3 region, /go-/gj represents the current input of the green LED array of the 0_3 region, / continent -/^ represents the current wheel input of the blue LED array in the third _3 area. Pin Syn is the sync signal input. The pin is also the trigger signal input. The SPI (Serial Port Interface) is a serial port digital signal input. Pin SP0 is a serial port digital signal output. Pin R-EXT is the resistor external terminal. Pin En is the enable signal input. Pin Vcc is the input of the supply voltage. Pin GND is the ground terminal. Drive sink 2〇-shared I2 pass Siam' each channel individually achieve pulse width modulation control, to achieve regional control of the light-emitting method if using color-sequence display technology 'in the same time, there is only one in each zone The color foot is turned on, so K: only three-third of the internal channel performs the action. If each red, green and blue LED array can share the same channel, the current mirror, 200917190 analog switch, and scratchpad can be greatly reduced. The number of bits, which in turn reduces its cost. SUMMARY OF THE INVENTION The main object of the present invention is to provide a color sequence method and a region control method 5 LED, a driving device, which provides a (four) driving device for the area control display technology, which can be used to cooperate with the full face color sequence method and the sweeping seedling The driving circuit of the color sequential method. A second object of the present invention is to provide an LED driving device for color sequential method and area control method, which can adjust the brightness of the backlight of each area of the panel according to the brightness of the surface of the panel, and emit it in a sequential manner. Red, green, and blue light, and at the same time stabilize the drive current of each string of LED arrays. In order to achieve the foregoing objective, an LED driving device according to the present invention provides a complex analog input multiplexer having a complex current input terminal and a complex control input terminal; 15 a plurality of current mirrors electrically connected to each of the analog multiplexers; a current regulator i electrically connected to the current mirrors, the current regulator having an external terminal, using two connection-resistors; and a plurality of analog gate switches Each of the current mirrors is electrically connected to each of the current mirrors; a working register is electrically connected to the analog gate switches f = ^, the register has a trigger end, and the plurality of control terminals are electrically connected to the second side. And a control input end of the analog multiplexer; and a buffer register having a serial port digital signal input terminal and a serial port digital signal output terminal, wherein the buffer register has a plurality of data output terminals Sexually connected to the work register. Thereby, the area control and the display technology suitable for the full-write color method and the scanning color-sequence method can be achieved and the current of the 200917190 can be accurately controlled to adjust the brightness of the LED. [Embodiment] In order to explain in detail the technical features of the present invention, the following two examples will be described with reference to the examples of the mussels and the following description, wherein: as shown in the fourth figure, the first preferred embodiment of the present invention One of the provided
色序法與區域控制法之led驅動裝置10，係整合於一 IC 中，其主要由四類比多工器u、四電流鏡2卜一穩流器3卜 一類比閘道開關41、一工作暫存器51、以及一緩衝暫存器 ίο 61所組成，其中： 邊等類比多工器11，分別具有三電流輸入端Ir，Ig,Ib， 以及分別具有二控制輸入端Sq,Si。其中，該三電流輸入端 Ir，Ig，Ib分別對應於R(紅）、g(綠）、B(藍)三色之LED。 5亥等電流鏡21，分別電性連接於各該類比多工器11。 15 忒穩流益M，電性連接於該等電流鏡21，該穩流器31 具有—外接端R-EXT,用以連接一電阻。 该等類比閘道開關41 ’分別電性連接於各該電流鏡2i。 。亥工作暫存器51 ’電性連接於該等類比閘道開關， 該工作暫存ϋ 51具有-觸發端Lateh，以及具有二控制端 2〇 S〇，Sl電性連接於該等類比多工器u之該二控制輸入端 SoA。 “該，衝暫存器6卜電性連接於該工作暫存器51，該缓 衝暫存器61具有-串列埠介面數位訊號輸入端奶以及一 串列阜"面數位訊號輸出端SPQ’且該緩衝暫存器61具有 8 200917190 複數資料輸出端D/Ο電性連接於該工作暫存器5卜 由第四圖中可看出，接腳‘/幻代表帛0_3區紅色LED 陣列的電流輸入端，/G0-/GJ代表第〇_3區綠色㈣陣列的 電流輸入端ϋ代表第〇_3區藍色㈣陣列的電流輸 5入端。接腳R-EXT為外接端。接腳spi(Serial p〇rt Interf㈣ 為串列埠介面數位訊號輸人端。接腳spq則為串列璋介面 數位訊號輸出端。接腳Lateh為觸發端。本第—實施例還具 有多數接腳，其中’接腳Syn為同步訊號輸入端。接腳而 為致能訊號輸入端。接聊Vcc為供應電壓之輸入端。 ⑺GND為接地端。 本第一貫施例的類比多工器u及電流鏡21所形成的 通道數量’係以四個為例’但實際上可以擴展到使用者所 需的數量，而不以四個為限。 本第一實施例所提供之驅動裝置，在操作時，其串列 15埠介面數位訊號輸入端SPI負責接收晝面控制中心所提供 的一系列串列數位訊號，由該緩衝暫存器61將串列數位訊 號轉換成六組的並列輸出數位訊號，並將其送入該工作暫 存器51，當接腳Latch接收到高位準的觸發訊號時，該工 作暫存器51再將前四位元的訊號傳送至該等類比閘道開關 〇 41，以個別控制該等類比閘道開關41的導通時間，而後兩 位元的訊號傳送至該等類比多工器n，以決定此時要讓驅 動電流流經紅、綠、或藍色led陣列。此種架構可適用於 全晝面色序法顯示技術，其在同一時間内，各區導通同〜 顏色的LED，故各該類比多工器U的二控制輸入端s〇，Si 9 200917190 可共用。另一方面’led的驅動電流由各該電流鏡21決―， 而其參考值由穩流器31與外接的電阻來決定，因此本 之驅動器可搭配各種廠牌、各種功率之LED。 义 此外，當晝面被分割的區域方塊數目超過本發明的雨 5道(即該等類比多工器11與該等電流鏡21所形成之通^ 數量時，可經由該SPO接腳，將背光源分割至使用者^斤^ 的區域方塊數。例如，假設該緩衝暫存器61只能讀取^二 數目的數位資料，當輸入該SPI接腳的數位訊號資料數目 大於N時，第N+1筆以後的資料將由該SPO接腳送出至下 10 一個本發明的spI接腳，依此類推串聯，而可達到區域控 制的功能。 請再參閱第五圖，本發明第二較佳實施例所提供之一 種色序法與區域控制法之LED驅動裝置70,主要概同於前 揭第一實施例’不同之處在於： 15 該緩衝暫存器61，的資料輸出端D/O,數量增加，該工 作暫存器51，的控制端數量增加為四個％，,^2，，83，、以及 該等類比多工器11，的控制輸入端的數量增加為四個 s〇，，V,s2，，s3,。 其中’在掃瞄式色序法顯示技術中，如第二圖所示， 〇在同一時間内’可能會有兩種顏色的LED導通。因此於本 ^施例中’必須增加該等控制端及控制輸入端的數量，而 藉以達到控制個別類比多工器11，的工作狀態。第六圖所示 ，，係為採用掃瞄式色序法顯示技術時，各區LED所有可 忐的導通情形，一共有十二種情形，因此藉由四個控制端 10 200917190 及控制輸入端的配合即可產生十六種控制狀態，進而達到 正確地控制四個類比多工器11，的效果。 本第二實施例之其他結構及使用狀態係與前述第一實 施例相同，容不贊述。 由上可知，本發明所可達成之功效在於： 、本發明可提供區域控制顯示技術的LED驅動裝 Γ 置’達到區域控制的效果，並且可配合全4面色序法及掃 瞄式色序法的顯示技術。 心二ί發明可精準的控制各串LED陣列的電流，進而 光LED，並可藉由控制電流來使面板各區域 據4面亮暗程度來調整亮度，並以循序的方 式散發出紅綠鏊耸夂& 土 卞目乃 動電流。 且同時穩定各串LED陣列的驅The LED driving device 10 of the color sequential method and the regional control method is integrated in an IC, which mainly consists of four analog multiplexers u, four current mirrors, a current regulator, a class of gate switches 41, and a working The register 51 and a buffer register ίο 61 are formed, wherein: the analog multiplexer 11 has three current input terminals Ir, Ig, Ib, and two control input terminals Sq, Si, respectively. The three current input terminals Ir, Ig, and Ib respectively correspond to LEDs of three colors of R (red), g (green), and B (blue). The current mirrors 21 such as 5 hai are electrically connected to the analog multiplexers 11 respectively. 15 忒 流 M M, electrically connected to the current mirror 21, the current regulator 31 has an external terminal R-EXT for connecting a resistor. The analog gate switches 41' are electrically connected to the respective current mirrors 2i, respectively. . The working register 51' is electrically connected to the analog gateway switches, the working buffer 51 has a triggering point Late, and has two control terminals 2〇S〇, and S1 is electrically connected to the analog multiplexing The two control inputs SoA. The buffer register 6 is electrically connected to the working register 51, and the buffer register 61 has a serial port digital signal input terminal milk and a serial port " surface digital signal output terminal. SPQ' and the buffer register 61 has 8 200917190. The complex data output terminal D/Ο is electrically connected to the working register 5. As can be seen from the fourth figure, the pin '/magic representative 帛 0_3 area red LED The current input of the array, /G0-/GJ represents the current input terminal of the green (four) array of the third _3 area, and the current input 5 of the blue (four) array of the third _3 area. The pin R-EXT is the external terminal. The pin spi (Serial p〇rt Interf (4) is the serial port digital signal input terminal. The pin spq is the serial port digital signal output terminal. The pin is the trigger terminal. The first embodiment has a majority The pin, where the 'spin Syn is the synchronous signal input terminal. The pin is the enable signal input terminal. The Vcc is the input terminal of the supply voltage. (7) GND is the ground terminal. The analog multiplexer of the first embodiment u and the number of channels formed by the current mirror 21 'takes four as an example' but can actually be extended to use The number of the required device is not limited to four. The driving device provided in the first embodiment is in operation, and the serial port 数 digital signal input terminal SPI is responsible for receiving one provided by the kneading control center. The series serial digital signal, the buffer register 61 converts the serial digital signal into six groups of parallel output digital signals, and sends them to the work register 51, when the pin Latch receives a high level trigger At the time of the signal, the working register 51 transmits the signals of the first four bits to the analog gateway switches 〇41 to individually control the conduction time of the analog gateway switches 41, and the signals of the last two digits are transmitted to The analog multiplexer n determines the drive current to flow through the red, green, or blue LED array at this time. This architecture can be applied to the full-face color-sequence display technology, at the same time, each area The LEDs of the same color are turned on, so the two control inputs s〇 of the analog multiplexer U, Si 9 200917190 can be shared. On the other hand, the driving current of the led is determined by each of the current mirrors 21, and the reference value thereof From the current regulator 31 and the external resistor Therefore, the driver of the present invention can be matched with LEDs of various brands and various powers. In addition, when the number of squares in which the facets are divided exceeds the rain 5 of the present invention (that is, the analog multiplexers 11 and the current mirrors) When the number of passes formed by 21, the backlight can be divided into the number of area blocks of the user via the SPO pin. For example, it is assumed that the buffer register 61 can only read two numbers of digital data. When the number of digital signal data input to the SPI pin is greater than N, the data after the N+1th pen will be sent out to the next 10 spI pins of the present invention by the SPO pin, and so on, and the area can be reached. Controlled features. Please refer to the fifth figure. The LED driving device 70 of the color sequential method and the regional control method according to the second preferred embodiment of the present invention is mainly similar to the first embodiment. The difference is: 15 The number of data output terminals D/O of the buffer register 61 is increased, and the number of control terminals of the work register 51 is increased by four%, ^2, 83, and the analog multiplexer 11 The number of control inputs is increased to four s〇,, V, s2, and s3. Among them, in the scanning color sequential display technology, as shown in the second figure, 〇 at the same time, there may be two colors of LED conduction. Therefore, in the present embodiment, the number of the control terminals and the control input terminals must be increased to control the operation state of the individual analog multiplexer 11. As shown in the sixth figure, when using the scanning color-sequence display technology, all the LEDs in each zone can be turned on. There are twelve cases, so the four control terminals 10 200917190 and the control input are used. With the cooperation, sixteen control states can be generated, thereby achieving the effect of correctly controlling the four analog multiplexers 11. Other structures and states of use of the second embodiment are the same as those of the first embodiment described above, and are not described. As can be seen from the above, the achievable effects of the present invention are as follows: The present invention can provide an area-controlled display technology for an LED driving device to achieve regional control effects, and can be combined with a full 4-sided color sequential method and a scanning color sequential method. Display technology. The invention can accurately control the current of each string of LED arrays, and then the LEDs, and can control the current to adjust the brightness of each area of the panel according to the brightness of the four sides, and emit red and green in a sequential manner. The towering & earthworms are moving currents. And at the same time stabilize the drive of each string of LED arrays
11 200917190 【圖式簡單說明】 第一圖係習知LED全晝面色序法背光燈區域控制驅動 器之LED驅動電流理想波形示意圖。 第二圖係習知LED掃瞄式色序法背光燈區域控制驅動 5 器之LED驅動電流理想波形示意圖。 第三圖係習知背光燈區域控制驅動器之架構圖。 第四圖係本發明第一較佳實施例之電路結構圖。 第五圖係本發明第二較佳實施例之電路結構圖。 第六圖係本發明第二較佳實施例之示意圖，顯示採用 10 掃瞄式色序法顯示技術的各區LED所有可能的導通情形。11 200917190 [Simple description of the diagram] The first diagram is a schematic diagram of the ideal waveform of the LED drive current of the LED full-color backlight control area control driver. The second figure is a schematic diagram of the ideal waveform of the LED driving current of the LED scanning color-shifting backlight region control drive. The third figure is an architectural diagram of a conventional backlight area control driver. The fourth figure is a circuit configuration diagram of a first preferred embodiment of the present invention. Figure 5 is a circuit diagram of a second preferred embodiment of the present invention. Figure 6 is a schematic view of a second preferred embodiment of the present invention showing all possible conduction scenarios for LEDs in each zone using a 10 scan color sequential display technique.
12 200917190 【主要元件符號說明】 10色序法與區域控制法之LED驅動裝置 11類比多工器 21電流鏡 31穩流器 51工作暫存器 D/Ο資料輸出端 GND接地端 Latch觸發端12 200917190 [Description of main component symbols] LED driver for 10 color sequence and area control method 11 analog multiplexer 21 current mirror 31 current regulator 51 working register D/Ο data output GND ground Latch trigger
41類比閘道開關 61緩衝暫存器 En致能訊號輸入端 Ir，IG，Ib電流輸入端 R-EXT外接端 s〇，s〖類比多工器之控制輸入端/工作暫存器之控制端 10 SPI串列埠介面數位訊號輸入端 SPO串列埠介面數位訊號輸出端 Syn同步訊號輸入端 Vcc供應電壓之輸入端 70色序法與區域控制法之LED驅動裝_置 11’類比多工器 51，工作暫存器 15 61’緩衝暫存器 D/θ’資料輸出端41 class than gateway switch 61 buffer register En enable signal input terminal Ir, IG, Ib current input terminal R-EXT external terminal s〇, s [analog multiplexer control input / working register control terminal 10 SPI serial port interface digital signal input terminal SPO serial port interface digital signal output terminal Syn synchronous signal input terminal Vcc supply voltage input terminal 70 color sequence method and area control method LED driver device _ set 11' analog multiplexer 51, work register 15 61 'buffer register D / θ ' data output
So^Sr’SAS3’類比多工器的控制輸入端/工作暫存器 的控制端 13Control terminal of So^Sr’SAS3' analog multiplexer / control terminal of working register 13