200830251 九、發明說明： 【發明所屬之技術領域】 本發明係有關一種背光控制之方法及其顯示架構，特別是有關一 種以發光二極體為背光源之控制方法及其顯示架構。 【先前技術】 為了可以更精確地控制液晶顯示面板上每一顯示區域中的色彩及 亮度，以發光二極體作為背光源之相關技術備受重視。請參考第一圖 所示，其係為習知的背光模組控制架構之方塊示意圖，在一背光模組 中係具有一處理器10、衩數個背光驅動單元121、122、123、124與 複數個背光源141、142、143、144，就訊號控制而言，處理哭1〇係 產生用以分別控制背光驅動單元121、122、123、124之控制訊號Γ 以使每一個接收到訊號的背光驅動單元121、122、123、124可^據 上述訊號中的指令控制其相對應之背光源141、142、143、144 例而言，當處理器10同時傳送控制訊號至背光, 123與124時，每一個背光驅動單元係依據所二:別 糊每-健背光驅鮮元概賴的料源，然而，就硬體架構而 a ’在處理益10與背光驅動單元121、122、123、124之間，係是 以-控制匯讀㈣減紅_t光鶴單元的方搞行控制，換言 ^就^ =的實施紐㈣，由於f光模財係 動早兀 121、122、123、124，田山 ^ ^ m 元121 W ^ 在處理器1G與四個背光驅動單 表示)以傳_幅號。4之_四條糊__ _粗實線 的液顯抑板面積的增加，為了可有效地控制大尺寸 彩解析度，則相對於較小尺寸的液晶顯示面板而 換言之，減面板所分割出的顯示區域數目係相對地增加， ’、、μ之月光驅動單70亦隨之增加，因而造成處 200830251 2動單元之間的匯流排數目增加，因此使得整體用以控制 月光杈、、且的电路佈局變得十分地複雜。 -加接；上述的缺失，本發明係提出一種動態背光控制之方法及其顯 不朱構。 【發明内容】 =明之主要目的，係提出—種以發光二極體為背光源之控制方 / 了私*構’其係將單—控制喊以指令編碼的方式，以直接地 空*複數個具有特定位址的發光二極體背光驅動單元，因此，使得每200830251 IX. Description of the Invention: [Technical Field] The present invention relates to a backlight control method and a display architecture thereof, and more particularly to a control method using a light-emitting diode as a backlight and a display structure thereof. [Prior Art] In order to more accurately control the color and brightness in each display area on the liquid crystal display panel, the related art using the light-emitting diode as a backlight has been highly valued. Please refer to the first figure, which is a block diagram of a conventional backlight module control architecture. A backlight module has a processor 10 and a plurality of backlight driving units 121, 122, 123, and 124. The plurality of backlights 141, 142, 143, and 144, in the case of signal control, processing the control signals for controlling the backlight driving units 121, 122, 123, and 124, respectively, so that each of the received signals is received. The backlight driving units 121, 122, 123, and 124 can control the corresponding backlights 141, 142, 143, and 144 according to the instructions in the above signals. When the processor 10 simultaneously transmits the control signals to the backlight, 123 and 124 At the same time, each of the backlight driving units is based on the source of the second: the hardware structure is abbreviated, however, in the hardware architecture, a 'in the processing benefit 10 and the backlight driving units 121, 122, 123, Between 124, it is controlled by the control (four) red _t light crane unit, in other words ^ ^ ^ implementation of the new (four), because the f-mode financial system moves early 121, 122, 123, 124, Tianshan ^ ^ m yuan 121 W ^ in the processor 1G with four backlight drive singles) Biography _ pieces number. 4 _ four paste __ _ thick solid line increase the area of the board, in order to effectively control the large-size color resolution, compared to the smaller size of the liquid crystal display panel, in other words, the panel is divided The number of display areas is relatively increased, and the monthly light drive unit 70 of ', and μ is also increased, thus causing an increase in the number of bus bars between the 200830251 2 moving units, thus making the overall circuit for controlling the moonlight, and the like. The layout has become very complicated. - Addition; the above-mentioned deficiency, the present invention proposes a method of dynamic backlight control and its display. [Summary of the Invention] = The main purpose of Ming is to propose a kind of control unit with a light-emitting diode as the backlight/private structure, and the system will control the single-control shouting by instruction coding to directly empty* multiple a light-emitting diode backlight driving unit having a specific address, thus making each
,1、1光極…光驅動單元所相對應之控制匯流排的數目可大幅地減 v，並且降低印刷電路板上控制線路佈局的設計難度。 為達上述之目的，本發明提供一種背光控制之方法及其顯示架 丄在本發明之顯示架射係包括有―背光模組控鮮元、—液晶驅 動=疋，以及與背級組、液晶_單元電性連接的液關示單元， 動恶控制之背光模組係包括_處理單元，其係電性連接於—控制匯流 ，與-時脈匯流排的-端，而在控麵流排财脈流排的另一端則 生連接複數個發光一極體背光驅動單元，且，每一發光二極體背 光驅動單元係具有m所有的發光二極體背光轉單元係電 f生連接於動控制發光二極體背光源上，並控制此背光源巾所有發光 〜極體之作動，在此令光模組中的處理單元係可產生複數控制訊號與 祓數時脈訊號，而透過控制匯流排與時脈匯流排以傳送此些控制訊號 與時脈訊號，並且，由於每一控制訊號係包括一定址指令與一資料指 令，因此，當所有發光二極體驅動單元接收到此控制訊號後，首先， ，據定址指令中的位址資訊，以開啟指定位址的發光二極體背光驅動 單元，換言之’未在定址指令中出現的位址所對應的發光二極體背光 驅動單元則不會被啟動，接續，再依據資料指令以提供適當的電流量 予已開啟的發光二極體背光驅動單元。 前述每一控制訊號係可包括一起始指令、一定址指令、一資料指 6 200830251 -截止指令’當射發光二極體鶴單元接收到此控祕號後， 百先，開始執行起始指令以啟動控制的流程，接續，依據定址指令中 的位，魏，以開啟指定位址的發光二極體f光驅動單元，換言之， 未在疋址彳日7巾丨現的位址所對應的發光二極體背光驅動單元則不會 被啟動接續’再依據貢料指令以提供適當的電流量予已開啟的發光 二極體背細解元，最終，執行終止齡崎止㈣的流程。 因^ ’在同—時序τ ’處理單元係可以透過至少匯流排與 瘀序匯流排，以硬體定址的方式即可同時控制複數個已定址的 單元以及與其電性連接的背光源，使得不同顯示 效果皆可達成狀的設定值，並降低印職路板上電路 佈局的複雜度。 ㈣ΐΐί由具體實施例配合__式詳加朗，當更容易瞭解本 ^月之目的、技術魄、_及其所達成之功效。 【實施方式】 為了減猶光模、组中印刷電路板上電路佈局設計的負擔，但同時 可達到動悲控制背光源的效果，且蚕 χ 力，本發明係提出-種背細1之录方反應色彩與亮度的能 方Ϊ供以發光二極體作為背光源之控制的功能’且可 令的編碼與解碼而達到平行控制數個不 冋顯祕域㈣光源。以下，將詳細揭露 並佐以®式以觀·相對應之實絲樣。U的^认 首先，參料二圖卿，魏為本發明 電路架構的方塊示意圖，在此背光控制之電 述的控制訊號巾係包括—定址指令與_f料則 控制訊號内含資辦序之參考，赠 嫌訊侧疋作為 訊號或為-同步觸雜丨gger)鮮，而二^可為—連續時脈(C_ 即风就而上逑的控制訊號係藉由-控制匯 7 200830251 抓排201以進行峨的傳遞，相同地，與控制訊號相互配合的時脈訊 侧是透過-時脈匯流排2G2以進行訊號的傳遞，當控制訊號與時脈 訊號分別經由控制匯流排2〇1與時脈匯流排2〇2傳遞後便會進入至複 數個發光二極體背光驅動單元221、222、223、224中，而啟動的發 _光一極體月光驅動單疋221、222、223、224則依據控制訊號的指示 以將驅動訊號分別傳送至與其電性連接的發光二極體f光源241、 - 242、243、244 中。 接縯，請同時參考第二圖與第三圖所示，第三圖係為第二圖中所 提供之實施態樣的方法流程圖，首先，在步驟S2〇中，由處理單元2〇 產生一控制訊號，且此控制訊號係由一定址指令與一資料指令所構 成；在步驟S21巾，利用控繼流排2〇1以傳送此控制訊號；在步驟 S22中，係依據定址指令中的位址資訊，以開啟相同於此位址資訊的 位址所相對應之發光二極體背光驅動單元221、222、223、224;在 步驟S23中，係利用資料指令透過已開啟之發光二極體背光驅動單元 221、222、223、224以將驅動訊號輸出至與其電性連接的發光二極 體背光源241、242、243、244中以點亮發光二極體背光源241、242、 243、244。由此可知，在具體施行的情形下，以本實施態樣的架構為 φ 例，所有之發光二極體背光驅動單元應先進行硬體定址，換言之，係 可先將第一發光二極體背光驅動單元221所相對應之位址定義為 0000、 第二發光二極體背光驅動單元222所相對應之位址定義為 0001、 第三發光二極體背光驅動單元223所相對應之位址定義為 0010、第四發光二極體背光驅動單元224所相對應之位址定義為 0011，因此，若當處理單元20產生一用以控制第一發光二極體被光 驅動單元221的控制訊號後，由於此控制訊號中定址指令之定址資料 所顯示内容係為第一發光二極體背光驅動單元221的位址，也就是 0000，且此控制訊號中的資料指令係指定20毫安培的電流量以做為 驅動訊號’因此’經過控制匯流排201將控制訊號傳送到四個發光二 8 200830251 極體背光驅動單it 221、222、223、224後，僅有第—發光二極體背 光驅動單元221會被啟動且將提供2〇毫安培的電流量至與並 接的第一發光二極體背光源241中。 私 另外，上述控制訊號中亦可加入起始指令與截止指令，以得更精 確之訊號㈣’即控觀親由—起純令、—定址齡、—資料= 令與-截止指令所構成。定址齡與_指令之__述相同，^ 此不再纽。起始指令域止指令縣—啟動崎與終止訊號的指 令’且僅有介在-起純令與_截止齡之間蚊址指令、資料指令 或其他可用於控制發光二極體背光驅動單元的任何指令才具有執行的 效力’換自話說’若在㈣峨的最初未設定有起触令/，、則當處理 單元產生㈣訊餘傳敎發光二極體背光鶴單科，亦無:啟動 ί一發t極體背光驅動單元以進行作動，同理地，若當控制訊號的 最終未設定錢止指令’則當處理單元產生控制訊號並傳送至發光二 極體背光轉單元時，雖有起純令命令發光二極體背光驅動^元進 行作動，但由於此控觀號並沒有設域止齡，因此，在起始指令 之後的所有4曰5亦热法進行作動，仍是無法啟動任一發光二極體背光 驅動單元以進行作動。 綜合上段所述，請同時參考第二圖與第四圖所示，第四圖係為第 二圖中所提供之實施態樣的另一種方法流程圖。首先，在步驟S30中， 由處理單7G 20產生一控制訊號，且此控制訊號係由一起始指令、一定 址指令、一資料指令與一截止指令所構成；在步驟S31中，利用控制 排201以傳送此控制訊號；在步驟S32中，係首先開始執控制 指令中的起始指令，以啟動整個控制的流程；在步驟S33中，係依據 定址指令中的位址資訊，以開啟相同於此位址資訊的位址所相對應之 發光二極體背光驅動單元221、222、223、224;在步驟s34中，係 利用貧料指令以決定已開啟之發光二極體背光驅動單元221、222、 223、224輸出至與其電性連接的發光二極體背光源241、242、243、 9 200830251 244中所需之電流值；最終，在步驟S35中，執行截止指令，以終止 整個控制的流程。 、 然而’依據上述推想，就硬體架構而言，本發明亦可利用一個控 制訊號以同時控制多個發光二極體驅動單元，換言之，當有N組發^ 二極體背光驅動單元時，其係對應小於或等於組的控制訊號，且 被指定之發光二極體驅鮮元射依據職_的控令^定址 指令與資料指令以利用指定的電流量而開啟發光二極體背光源，詳而 槿^=五圖柄’錢林發明軸11技控制之電 路木構的方塊示意圖，在此-實施態樣中的處理單元2〇係 2，=2〇1’與第二控制匯流排201，’以分別提供一第—控制訊號 ”-弟二控制訊號，並且亦與—時脈匯流排2G2連接以傳遞盘第一# 第二控制訊號相對應之時脈訊號，且其中第__指令“ ^址心々係包括_〇與0001，因此其係用以控 光驅動單元221、第二發光二極體背光驅動單元222，而 縣包括嶋與咖，因此其係是肋控三發 厂二!^光驅動早70 223、細發光二極體背光驅動單元224，因 22開啟，亚根據控制指令中的資訊指令以決定第一發光 卢为==元221與第二發光二極體背光驅動單元222 ^鶴訊 ，舉例H驅動訊號所提供之f訊為電流量時，也 ^係域動第—發光二極體背光驅動單元22 體 -20 〇〇〇〇 . 25 〇〇〇1 發光二極體背光驅動單元22彳與第 222係分別以20毫安培與25毫安培的電流量以進行==: 200830251 於第二控制訊號係用以啟動第三發光二極體背光驅動單元223與第四 發光二極體背光驅動單元224，且在第二控制訊號中的資訊指令係指 示提供25毫安培至0010位址、2〇毫安培至〇〇1彳位址，故第三發光 二極體背光驅動單元223與第四發光二極體背光驅動單元224係分別 以25毫安培與20毫安培的電流量以進行開啟。另外，伴隨於第二控 制訊號與第二控制訊號所產生的時脈訊號係可用以做為第一控制訊 號、第二控制訊號之資訊時序的參考。 工° 然而，若當處理單元20所產生之控制訊號中的定址指令未設定之1, 1 photopole... The number of control busbars corresponding to the optical drive unit can be greatly reduced, and the design difficulty of the control circuit layout on the printed circuit board is reduced. In order to achieve the above object, the present invention provides a backlight control method and a display frame thereof. The display system of the present invention includes a backlight module control unit, a liquid crystal driver=疋, and a backstage group and a liquid crystal. _ unit electrically connected liquid shut-off unit, the active control of the backlight module includes a _ processing unit, which is electrically connected to - control the sink, and - the clock bus - end, while in the control plane The other end of the financial flow row is connected to a plurality of light-emitting one-pole backlight driving units, and each of the light-emitting diode backlight driving units has m all of the light-emitting diode backlight unit Controlling the backlight of the LED and controlling all the illumination of the backlight, so that the processing unit in the optical module can generate the complex control signal and the clock signal, and the control convergence And the clock bus to transmit the control signals and the clock signals, and since each control signal includes an address command and a data command, when all the LED driving units receive the control signal First, according to the address information in the address instruction, the LED backlight driving unit of the specified address is turned on, in other words, the LED backlight driving unit corresponding to the address not appearing in the addressing instruction is It will not be activated, connected, and then according to the data command to provide an appropriate amount of current to the turned-on LED backlight driving unit. Each of the foregoing control signals may include a start command, an address command, and a data finger. 6 200830251 - Cutoff command 'When the light-emitting diode crane unit receives the control key number, the first start, the start command is executed. The process of starting the control is continued, according to the bit in the addressing instruction, Wei, to open the light-emitting diode f-light driving unit of the specified address, in other words, the light corresponding to the address that is not in the address of the next day The diode backlight driving unit will not be activated to continue to 'receive the tribute command to provide an appropriate amount of current to the turned-on LED backlight, and finally, the process of terminating the aging (4) is performed. Because the 'in the same-timing τ' processing unit can control at least a plurality of addressed units and the backlights electrically connected thereto by using at least a bus bar and a sequence bus, so that different The display effect can be achieved in a set value and reduce the complexity of the circuit layout on the printed circuit board. (4) ΐΐί is coordinated with __ by the specific embodiment. It is easier to understand the purpose of this month, the know-how, and the effect achieved. [Embodiment] In order to reduce the burden of the circuit layout design on the printed circuit board in the mode, but at the same time, it can achieve the effect of controlling the backlight back and forth, and the cocoon force, the present invention proposes a record of the back The energy of the square reaction color and brightness is provided by the function of the control of the light-emitting diode as a backlight, and the coding and decoding can be achieved to achieve parallel control of several hidden areas (four) light sources. In the following, the details will be disclosed in detail and the corresponding silk pattern will be viewed. U's recognition first, the reference material is two maps, Wei is the block diagram of the circuit architecture of the invention, and the control signal of the backlight control includes the address command and the _f material control signal. The reference is to give the suspect side as a signal or as a synchronous sync gger), and the second can be a continuous clock (C_ is the wind and the upper control signal is controlled by the control 7 200830251 The row 201 is used for the transmission of the chirp. Similarly, the pulse-side side of the control signal is transmitted through the clock-gathering bus 2G2 for signal transmission. When the control signal and the clock signal are respectively controlled via the control bus 2〇1 After being transmitted to the clock bus 2〇2, it will enter into a plurality of LED backlight driving units 221, 222, 223, 224, and the activated hair-light one-pole moonlight driving unit 221, 222, 223, 224, according to the instruction of the control signal, respectively, to transmit the driving signal to the light-emitting diodes f-light source 241, -242, 243, 244 electrically connected thereto. The connection, please refer to the second figure and the third figure at the same time. The third picture is the implementation state provided in the second figure. Method flow chart. First, in step S2, a control signal is generated by the processing unit 2, and the control signal is composed of an address instruction and a data instruction; in step S21, the control flow is used. 〇1 to transmit the control signal; in step S22, according to the address information in the address instruction, to activate the LED backlight driving unit 221, 222, 223 corresponding to the address of the same address information In step S23, the light-emitting diode backlight driving units 221, 222, 223, and 224 are turned on by using the data command to output the driving signals to the light-emitting diode backlights 241 and 242 electrically connected thereto. In 243 and 244, the light-emitting diode backlights 241, 242, 243, and 244 are illuminated. It can be seen that, in the case of specific implementation, the structure of the present embodiment is φ, and all of the light-emitting diodes are used. The backlight driving unit should be first hard-addressed. In other words, the address corresponding to the first LED backlight driving unit 221 is first defined as 0000, and the second LED backlight driving unit 222 is corresponding. Address The address corresponding to the third LED backlight driving unit 223 is defined as 0010, and the address corresponding to the fourth LED backlight driving unit 224 is defined as 0011. Therefore, if the processing unit is After generating a control signal for controlling the first light-emitting diode to be driven by the light driving unit 221, the content of the address data of the address command in the control signal is the address of the first light-emitting diode backlight driving unit 221 , that is, 0000, and the data command in the control signal specifies a current amount of 20 milliamperes as the driving signal 'so' through the control bus 201 to transmit the control signal to the four light emitting two 8 200830251 polar body backlight driving list After it 221, 222, 223, 224, only the first LED backlight driving unit 221 will be activated and will provide 2 mA of current to the parallel LED 241 backlight. . In addition, the above control signal can also be added to the start command and the cut-off command for a more accurate signal (4), that is, the control view, the pure order, the address age, the data = order and the cut-off command. The age of the address is the same as the __ of the _ directive, ^ this is no longer New. The starting command field stops the command county - the command to start the chip and terminate the signal' and only between the pure command and the age of the mosquito, the data command or other can be used to control the LED backlight drive unit The command has the effect of execution 'replacement'. If there is no trigger command at the beginning of (4), then the processing unit generates (4) the signal transmission LED backlight backlit crane, and no: start ί A t-pole backlight driving unit is used for the operation, and if the control signal is not set to the end of the control signal, then when the processing unit generates the control signal and transmits it to the LED backlight unit, The command light-emitting diode backlight driver is used to operate, but since the control number does not set the domain age, all the 4曰5 after the start command are also activated, and it is still impossible to start. A light emitting diode backlight driving unit is operated. In summary, please refer to the second and fourth figures at the same time, and the fourth figure is another method flow chart of the embodiment provided in the second figure. First, in step S30, a control signal is generated by the processing unit 7G 20, and the control signal is composed of a start instruction, an address instruction, a data instruction and a cutoff instruction; in step S31, the control row 201 is utilized. In order to transmit the control signal, in step S32, the start instruction in the control instruction is first started to start the flow of the entire control; in step S33, the address information in the address instruction is activated according to the address information. The address of the address information corresponds to the LED backlight driving units 221, 222, 223, 224; in step s34, the lean LED command is used to determine the LED backlight driving units 221, 222 that have been turned on. , 223, 224 output to the current values required in the light-emitting diode backlights 241, 242, 243, 9 200830251 244 electrically connected thereto; finally, in step S35, a cut-off command is executed to terminate the entire control flow . However, according to the above assumptions, in terms of hardware architecture, the present invention can also utilize a control signal to simultaneously control a plurality of LED driving units, in other words, when there are N groups of diode backlight driving units, The system corresponds to a control signal less than or equal to the group, and the designated light-emitting diode is driven by the control command address and the data command to open the light-emitting diode backlight by using the specified current amount. Detailed and 槿^=五图柄's block diagram of the circuit structure of the Qianlin invention axis 11 technology control, in this embodiment - the processing unit 2 is 2, = 2〇1' and the second control bus 201, 'to provide a first - control signal" - the second control signal, and is also connected to the - clock bus 2G2 to transmit the clock signal corresponding to the first # second control signal of the disk, and wherein the __ The command "interface" includes _〇 and 0001, so it is used to control the light driving unit 221, the second light-emitting diode backlight driving unit 222, and the county includes the 嶋 and the coffee, so the system is ribbed three Factory 2!^Light drive early 70 223, fine light-emitting diode The backlight driving unit 224 is turned on according to the information command in the control command to determine the first lighting illuminator == 221 and the second illuminating diode backlight driving unit 222. For example, the H driving signal is provided. When the amount of current is the current amount, the system is also activated. The light-emitting diode backlight driving unit 22 body-20 〇〇〇〇. 25 〇〇〇1 the light-emitting diode backlight driving unit 22彳 and the 222th system respectively The current of 20 mA and 25 mA is performed ==: 200830251 The second control signal is used to activate the third LED backlight driving unit 223 and the fourth LED backlight driving unit 224, and The information command in the two control signals indicates that the address is from 25 mA to 0010, and the address is from 2 mA to 〇〇1, so the third LED backlight unit 223 and the fourth LED backlight are driven. Unit 224 is turned on at a current of 25 milliamps and 20 milliamps, respectively. In addition, the clock signal generated by the second control signal and the second control signal can be used as a reference for the information timing of the first control signal and the second control signal. However, if the address command in the control signal generated by the processing unit 20 is not set
位址所對應之發光二極體背光驅動單元係不會被開啟，例如：當一控 制訊號中的位址資訊僅包含〇〇〇〇、〇〇〇1、〇〇1〇之位址資訊時，則表 示對，0_、〇_、〇_位址之第一發光二極體背光“單^ 221、第二發光二極體背光驅動單元222、第三發光二極體背光驅動單 兀223係將被啟動，並且第一發光二極體背光驅動單元22[第二發 光二極體背光驅動單元222、第三發光二極體背光驅動單元您^； 據與其相對應之資訊指令所提供之電流量以將電性連接之第一發光二 極體背光源241、第二發光二極體#光源242、第三發光二極體背光 ，243進側啟’而由於第四發光二極體背光驅動單並未被指 定，因此與其電性連接的第四發光二極體背光源244係不會被開啟， 然，若當上述的GGGG位址指令相對應之資料指令所提供之電流量為〇 時，則第-發光二極體背光驅動單元221雖被啟動，但卻不會輸入任 電=第一發光二極體f光源241中。而此實施態樣的方法流程係 類似於弟二_對應之第三圖、第四财所揭示之方法，故，於此將 不再瞽诚。 \ 二:卜从，之控制訊號形式可以為數位資料型態、調幅資料型態 或調頻貧料魏，以下分別參考第六圖、第七圖與第八圖。 當控繼》fM為紐資料顯時，配合時序訊賴取—定位元 的控制訊號已分別決定起始訊號、定址訊號、資料訊號與終止訊號。 200830251The LED backlight driving unit corresponding to the address is not turned on, for example, when the address information in a control signal only contains address information of 〇〇〇〇, 〇〇〇1, 〇〇1〇 , indicating that the first light-emitting diode backlight of the 0_, 〇_, 〇_ address is "single 221, the second light-emitting diode backlight driving unit 222, and the third light-emitting diode backlight driving unit 223" Will be activated, and the first LED backlight driving unit 22 [the second LED backlight driving unit 222, the third LED backlight driving unit you ^; according to the corresponding information provided by the information provided by the current The first light-emitting diode backlight 241, the second light-emitting diode # 222, and the third light-emitting diode backlight 243 are electrically connected to each other, and the fourth light-emitting diode is driven by the backlight. The single LED is not specified, so the fourth LED backlight 244 that is electrically connected to it is not turned on. However, if the amount of current supplied by the corresponding data command of the GGGG address command is 〇 , the first-light-emitting diode backlight driving unit 221 is activated Move, but does not input any power = first light-emitting diode f light source 241. The method flow of this embodiment is similar to the method disclosed in the third figure and the fourth money of the second This will no longer be pious. \ 2: Bu Cong, the control signal form can be digital data type, amplitude modulation data type or FM poor material Wei, the following reference to the sixth, seventh and eighth figures respectively When the control "fM" is displayed, the control signal of the positioning signal is determined by the timing signal, the address signal, the data signal and the termination signal.
例如：當時續訊號為高位準時，若讀取到一負緣（Falling Edge)控制 訊號，則A區段所示，表示一起始指令以啟動整個控制流程；接著， 若疋義驅動單元位址為三個位元（bjt)，如B區段所示，則再三個時脈 區間内讀取三位元的定址訊號以決定該位址相對應之發光二極體背光 驅動單it ;錢’如C區段所*，若定義⑽訊號為四恤元，則再 四個時脈區間内讀取四位元的資料訊號以對發光二極體做適當之亮度 驅動，亦即提供發光二極體資料訊號中對應之電流值；最終，當日^ 訊，為低轉時’若讀取到—正緣⑽丨ng Edge)控制訊號，則如d 區段所不，表示一終止訊號以终止整個控制流程。 控制訊號形式為調幅資料型態時，則藉由判定一定時間内之電壓 準位以分職定起始織、定址職、f料職與終止峨，固定時 間係以計數時脈訊號來決定。如第七騎示，在t。_ t時_，一 特定電壓準位為起始訊號；接著，在ti _㈣間内，定義―電壓準位範 圍（例如為Va1 \/沿）為疋址訊號，且依電壓大小決定不同驅動單元 ，位然後’在^3時間内，定義—電壓準位綱（例如為^一 為:雜碱，且依電壓划、歧獨亮度的鶴訊號，亦即決定 &過發光二極體事當之電流值；最終，在u u時間内，定義_特定電 1位為終止《。設計上躲意的是，触峨、定址訊號 電壓位準需控制到可以分別以免造成誤判影響顯示 ^果。如果起始峨、定址訊號、資料訊號與終止訊號之電可以 ==與伽彳，貞㈣脈域亦可省略，僅细電辟位的範圍來做 控制喊亦可設計為_資_態，而在—定啊間 決定起始訊號、定址訊號、資料訊號與終止訊號: 二拜始訊號、定址訊號、f料峨與終止訊號之訊 號湧率而匕制不重豐以免造成誤判影響顯示效果。 此外，將本發騎·之背統控敗電路轉應肢—顯示裝 12 200830251 ，中則可麟—可有效控㈣域組之顯林構，域—顯干 包括有-背光模組控料元、—液晶 —木冓^ 流排、複數發光二極體背光驅動單元以及至少_：$=二Z匯 而上述之各條鮮二財啦之結_同，故;再=此^， 因此，本發明之背光源控制之方法及1 尨、 極體背光驅動單元以硬體定址的方式先進定:架主要將發 時脈訊號以並行的控制方式對已定址的發光二極體;= 同步的控制’故’最少侧㈣ :光=，_元的效果，亦即，可簡化處 =二之間的電路佈局設計’此外可以進—步達到動態控制背== 以上所述係藉由實施例說明本發明之， :者:=發明之内容並據以實施，而非限定本技 他未脫離本發明所揭示之精神所完成之等效修飾或=圍 應匕3在以下所述之申請專利範圍中。 〆乂 仍 【圖式簡單說明】 第:圖係為習知的背光模組控齡構之方塊示音圖。 ^圖係為本發B狀其中態背光控敎^路轉的方塊示意 第三圖係為第二圖中所提供之實施態樣的方法流程圖。 =!ίΐ二圖中所提供之實施態樣的另-種方法流程圖。 之另—種絲背光控制之電路架構的方塊示意圖。 r柄月之控制訊號形式為數位資料縣時之時序圖。 =七圖為本發明之控制訊號形式為_資料㈣時之時序圖。 弟八圖為本伽之_峨形式_«_態時之時序圖。 【主要元件符號說明】 口 13 200830251 10 處理器 121 122 第二背光驅動單元 123 124 第四背光驅動單元 141 142 第二背光源 143 144 第四背光源 20 處理單元 201 201, 第一控制匯流排 20 Γ 202 時脈匯流排 第一背光驅動單元 第三背光驅動單元 第一背光源 第三背光源 控制匯流排 第二控制匯流排 221第一發光二極體背光驅動單元 • 222第二發光二極體背光驅動單元 223第三發光二極體背光驅動單元 224第四光二極體背光驅動單元 24 動態控制發光二極體背光源 241第一發光二極體背光源 242第二發光二極體背光源 243第三發光二極體背光源 244第四發光二極體背光源 14For example, if the renewal number is high on time, if a Falling Edge control signal is read, the A section indicates a start command to start the entire control flow; then, if the drive unit address is Three bits (bjt), as shown in the B segment, read the three-bit addressing signal in three more clock intervals to determine the corresponding LED backlight driving single address of the address; In section C, if the (10) signal is defined as a four-element, the four-bit data signal is read in four more clock intervals to properly drive the light-emitting diode, that is, to provide a light-emitting diode. The corresponding current value in the data signal; finally, on the current day, if the control signal is 'when the positive edge (10) 丨 ng Edge is low), if the d segment does not, it indicates a termination signal to terminate the entire control. Process. When the control signal format is the amplitude modulation data type, the fixed time is determined by counting the clock signal by determining the voltage level within a certain period of time to determine the starting woven, the addressing position, the f job position and the termination time. As shown in the seventh ride, at t. _ t _, a specific voltage level is the start signal; then, in ti _ (four), define the "voltage level range (for example, Va1 \ / edge) as the address signal, and determine the different drive units according to the voltage , then 'in the ^3 time, define - voltage level (for example, ^ one for: alkaloid, and depending on the voltage, the unique brightness of the Hexun, that is, the decision & over-emitting diodes The current value; finally, in the uu time, the definition of _ specific electric 1 bit is terminated. The design is hidden, the touch voltage, the address signal voltage level must be controlled to avoid causing misjudgment to affect the display. The initial 峨, address signal, data signal and termination signal can be == and gamma, 贞 (four) pulse domain can also be omitted, only the scope of the fine sputum to control the call can also be designed as _ _ _ state, and In the first place, the start signal, the address signal, the data signal and the termination signal are determined: the signal rate of the start signal, the address signal, the f-order and the stop signal is not heavy enough to avoid misjudgment affecting the display effect. In addition, the rider’s back control circuit Applicable limbs - display equipment 12 200830251, Zhong Ke Ke - can effectively control (four) domain group of the forest structure, domain - display stem includes - backlight module control element, - liquid crystal - raft ^ flow row, complex light two The polar body backlight driving unit and the at least _:$= two Z sinks and the above-mentioned various fresh two riches _ the same, so; again = this ^, therefore, the backlight control method of the present invention and 1 尨, pole The body backlight driving unit is advanced in the way of hardware addressing: the frame mainly sends the clock signal in parallel control mode to the addressed light-emitting diode; = synchronization control 'so' minimum side (four): light =, _ yuan The effect, that is, the circuit layout design between the two places can be simplified. In addition, the dynamic control back can be achieved. == The above description is based on the embodiment, and the invention is: The equivalent modifications or the equivalents of the invention are not limited by the spirit of the invention as disclosed in the following claims. : The picture is a block diagram of the conventional backlight module control system. The block diagram of the state of the backlight control indicates that the third diagram is a flow chart of the method of the embodiment provided in the second figure. The other method flow of the implementation aspect provided in the second figure is shown in the figure below. Fig. Another block diagram of the circuit structure of the silk backlight control. The control signal form of the handle month is the timing chart of the digital data county. = Seven diagrams are the timing diagrams when the control signal form of the invention is _ data (4) The eighth diagram is the timing diagram of the _峨 form _«_ state. [Main component symbol description] Port 13 200830251 10 Processor 121 122 Second backlight driving unit 123 124 Fourth backlight driving unit 141 142 Second Backlight 143 144 fourth backlight 20 processing unit 201 201, first control bus 20 Γ 202 clock bus first backlight driving unit third backlight driving unit first backlight third backlight control bus second control Bus 221 first light emitting diode backlight driving unit • 222 second light emitting diode backlight driving unit 223 third light emitting diode backlight driving unit 224 fourth light diode backlight driving unit 24 State control of the backlight light-emitting diode 241 of the first light-emitting diode backlight 242 of the second light-emitting diode backlight 243 of the third light-emitting diode backlight 244 of the fourth light-emitting diode backlight 14