1361412 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】[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]
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 党度，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 所不，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、複數個背光驅動單元121、122、123、124與 複數個背光源141、142、143、144，就訊號控制而言，處理器10係 產生用以分別控制背光驅動單元121、122、123、124之控制訊號， 以使每一個接收到訊號的背光驅動單元121、122、123、124可依據 上述訊號中的指令控制其相對應之背光源141、142、143、144，舉 例而言，當處理器10同時傳送控制訊號至背光驅動單元121、122、 123與124日寺’每-個背光驅動單元係依據所接收到的訊號，以分別 ，制每-個與背光驅動單对性連接的背光源，然而，就硬體架構而 s ’在處理器10與背光驅動單元121、122、123、124之間，係是 以-控制匯流難獅對應之—背絲動單元的方式進行控制，換言 之，就以本習知的實施態樣而言，由於技模财係具有四個背光驅 動單元121、122、123、124 ’因此，在處理器10與四個背光驅動單 =21 122 123、124之間係有四條控龜流排(在圖中係以粗實線 表示)以傳送控制訊號。 然而’隨减晶顯示面板面積的增加，為了可姐地控制大尺寸 晶顯示面㈣色彩解析度，對於較小尺寸的液晶顯示面板而 二，大尺寸的液晶顯示面板所分割出的顯示區域數目係增加， ==區域之背光源數目亦增加，基於此-架構下，背 先模組中母-¾統關紅縣驅料元 5In order to more accurately control the color and the degree of party 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, a plurality of backlight driving units 121, 122, 123, 124 and a plurality of The backlights 141, 142, 143, 144, in terms of signal control, the processor 10 generates control signals for respectively controlling the backlight driving units 121, 122, 123, 124, so that each backlight receiving the signals is driven. The units 121, 122, 123, and 124 can control the corresponding backlights 141, 142, 143, and 144 according to the instructions in the above signals. For example, when the processor 10 simultaneously transmits the control signals to the backlight driving units 121, 122, 123 and 124th Temple's each backlight driver unit is based on the received signals, respectively, to make a backlight that is connected to the backlight drive single-pair, however, on the hardware architecture s 'in the processor 10 and the backlight driving units 121, 122, 123, 124 are controlled in such a manner as to control the back-moving unit corresponding to the sinking lion, in other words, in the conventional embodiment, Technology and finance Four backlight drive units 121, 122, 123, 124 ' Therefore, there are four control turtle rows between the processor 10 and the four backlight drive units = 21 122 123, 124 (shown by thick solid lines in the figure) ) to transmit control signals. However, with the increase of the area of the reduced crystal display panel, in order to control the color resolution of the large-size crystal display surface (4), for the smaller size liquid crystal display panel, the number of display areas divided by the large-size liquid crystal display panel The number of backlights in the area is increased, and the number of backlights in the area is also increased. Based on this architecture, the parent-in-module
1J0141Z 理器與背光驅動 背光模組的電路佈目增加’因此使得整體用以控制 示架V的缺&本發明係提出—縣態背光控制之方法及其顯 【發明内容】 法及’係提出—種以發以_背光源之控制方 控制後數個具有特定位 =万式以直接地 個發光二極體背體^絲早①，因此，使得每 少，並胁射 對應之控麵流排醜目可大幅地減 1降低P刷電路板上控制線路佈局的設計難度。 構，m服供—種背批制之方法及其顯示架 動單ί=:示架構中係包括有一背光模組控制單元、-液晶驅 動处㈣與肖統組、液晶驅動單元電性連接的液晶顯示單元， t日模組係包括—處理科，其係、電性連接於—控制匯流 是雷性=的一端，而在控制匯流排與時脈匯流排的另一端則 數個發光二極體背光驅動單元，且，每—發光二極體背 m早凡糸具有一位址’又所有的發光二極體背光驅動單元係電 f接於祕_發光二極«光社，並㈣此背光射所有發光 之作動；在此背光模财的處理單元係可產生複數控制訊號與 硬，％•脈til號’而透過控制匯流排與時脈匯流排以傳送此些控制訊號 2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 々因此，當所有發光二極體驅動單元接收到此控制訊號後，首先， ，據叱址拓令中的位址資訊，以開啟指定位址的發光二極體背光驅動 f元換δ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。 料指 别述每一控制訊號係可包括一起始指令、一定址指令、一資 6 1361412 =戴止指令，當所有發光二極體驅動單元接收到此控制訊號後， 百先，開始執行起始指令以啟動控制的流裎，接續，依據定址指令中 =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， ^在定址指令巾出_位_職的發光二極體㈣驅鮮元則不會 1啟動’騎，再依射料指令以提供適當的電流量？已開啟的發光 極也♦光驅動單元，最終’執行終止指令以停止控制的流程。 I、口^ ’在同__時序下’處理單元係可以透過至少—資料匯流排與 時序匯流排’以硬體定址的方式即可同時控制複數個已定址的 =二極體背聽動單元以及與其電性連接的背光源，使得不同顯示 :中的a光效果皆可達細定的設定值，並降低印刷電路板上電路 佈局的複雜度。 表底下藉由具體實施例配合所附的圖式詳加說明，當更容易瞭解本 發明之目的、技術内容、特點及其所達成之功效。 【實施方式】 為了減輕背光模組中印刷電路板上電路佈局設計的負擔，但同時 :達到動⑮控制背光關效果，且兼具有快速反應色彩與亮度的能 力从本發縣提出—種背光職歡方法及其顯示_，其係可在簡 t的電路佈局下，提供以縣二極_騎光社控_功能，且可 2硬體定址的方式’透過指令的編碼與解碼而制平行控制數個不 ^、、貝不區域的背光源。以下，將詳細揭露本發明之具體的實施態樣， 並佐以圖式以補強說明相對應之實施態樣。 首先，參考第二晒示，其係林發明之 電路架構的方塊示意圖，在此背光控制之電路架構中係 元20其係可產生複數個控制訊號與一相對應的時脈訊號，其中 =控制訊號中係包括—定址指令與—資料指令、時脈職則是 内含資訊時序之參考’且時脈訊號係可為—連射脈(d〇ck) 减或為-同步觸發__訊號，而上述的控制訊號係藉由一控制匯 7 1361412 流排201以進行訊號的傳遞，相同地，與控制訊號相互配合的時脈訊 號則是透過一時脈匯流排202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201與時脈匯流排202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 光二極體背光驅動單元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背光源241、 242、 243、244 中。 接續，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S20中，由處理單元20 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中’利用控制匯流排201以傳送此控制訊號；在步驟 S22申，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 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 所顯示内谷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2〇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 丄允1412 極體^驅動單元221、222、223、细後僅有第— 光驅動早兀221會被啟動且將提供2 ^ 月 接的第-發光二極體背光源241中。如為㈣至與其電性連 另外，上述控制訊號忖可加人起始指令触止指令， =之訊號控制’即控制訊號係由—起始指令、—定址指令、—= 指t所構成。定址指令與資料指令之作用與前述相同，‘ 此不再w。起始指令與截止指令係為—啟動 令，且财介在—起純令與—鼓齡之間蚁址齡、The circuit layout of the 1J0141Z processor and the backlight-driven backlight module is increased, so that the whole system is used to control the lack of the display frame V. The present invention proposes a method for county backlight control and its display [invention] method and 'system It is proposed that the control group with the backlight of _ backlight has a specific bit = 10,000 type to directly illuminate the diode body body body body wire early, therefore, so that each less, and the corresponding control surface The ugly of the flow can be greatly reduced by 1 to reduce the design difficulty of the control circuit layout on the P-brush circuit board. Structure, m service--the method of back-batch and its display frame ί=: The architecture includes a backlight module control unit, and the liquid crystal drive (4) is electrically connected with the Xiaotong group and the liquid crystal drive unit. The liquid crystal display unit, the t-day module includes a processing section, which is electrically connected to the control flow, which is the end of the lightning property, and at the other end of the control bus and the clock bus, a plurality of light-emitting diodes. The body backlight driving unit, and each light-emitting diode back m has a single address, and all the light-emitting diode backlight driving unit is electrically connected to the secret _ light-emitting diode «光社, and (4) The backlight emits all the illuminations; the processing unit of the backlight model can generate a plurality of control signals and a hard, %• pulse til number' and transmit the control signals 2 clock signals through the control bus and the clock bus. And, since each control signal includes an address command and a data index, when all the LED driver units receive the control signal, first, according to the address information in the address extension, Turn on the light of the specified address The backlight of the body is driven by the f-element δ, and the LED backlight driving unit corresponding to the address that does not appear in the addressing instruction is not activated, and then according to the data command to provide an appropriate current amount to be turned on. LED backlight drive unit. It is meant that each control signal can include a start command, an address command, and a 6 1361412 = wear stop command. When all the LED driver units receive the control signal, the first start is performed. The instruction starts the control flow, and continues, according to the address information in the address instruction, to turn on the LED backlight driving unit of the specified address, in other words, the LED in the address command (4) The fresh-keeping element will not start the 'riding, and then according to the shot command to provide the appropriate amount of current? The turned-on illuminator is also ♦ the optical drive unit, and finally the process of executing the termination command to stop the control. I, port ^ 'under the same __ timing 'processing unit can at least - data bus and timing bus ' can be controlled by hardware to simultaneously control a plurality of addressed = diode back hearing unit And the backlight connected to it electrically, so that the different light effects in the different display can reach the set value and reduce the complexity of the circuit layout on the printed circuit board. The objects, technical contents, features, and effects achieved by the present invention are more readily understood by the detailed description of the embodiments and the accompanying drawings. [Embodiment] In order to reduce the burden of circuit layout design on the printed circuit board in the backlight module, at the same time: to achieve the effect of controlling the backlight off, and having the ability to quickly react to color and brightness, a backlight is proposed from the county. The job method and its display _, which can be provided in the circuit layout of the simple t, provided by the county two pole _ riding light social control _ function, and can be 2 hardware addressing method 'parallel through the encoding and decoding of the command Controls a number of backlights that do not have a zone or a zone. Hereinafter, specific embodiments of the present invention will be described in detail, and the corresponding embodiments will be described with reference to the drawings. First, referring to the second display, the block diagram of the circuit structure of the invention, in the circuit structure of the backlight control, the system 20 can generate a plurality of control signals and a corresponding clock signal, wherein = control The signal includes - the address instruction and the data command, the clock function is the reference of the information timing, and the clock signal can be - the pulse (d〇ck) minus or the - synchronous trigger __ signal, and The control signal is transmitted through a control port 7 1361412 to perform signal transmission. Similarly, the clock signal matching the control signal is transmitted through a clock bus 202 for signal transmission. And the clock signal is transmitted to the plurality of LED backlight driving units 221, 222, 223, and 224 through the control bus 201 and the clock bus 202, respectively, and the activated LED backlight driving unit is activated. 221, 222, 223, and 224 transmit the driving signals to the LED backlights 241, 242, 243, and 244 electrically connected thereto according to the indication of the control signals. For the connection, please refer to the second and third figures at the same time. The third figure is a flowchart of the method of the embodiment provided in the second figure. First, in step S20, a control signal is generated by the processing unit 20. And the control signal is composed of an address command and a data command; in step S21, 'the control bus 201 is used to transmit the control signal; and in step S22, the address information is turned on according to the address information in the address instruction. The LED backlight driving units 221, 222, 223, and 224 corresponding to the addresses of the address information are transmitted through the activated LED backlight driving unit 221 by using the data command in step S23. 222, 223, 224 are used to output the driving signals to the LED backlights 241, 242, 243, 244 electrically connected thereto to illuminate the LED backlights 241, 242' 243, 244. Therefore, in the specific implementation situation, taking the architecture of the embodiment as an example, all the LED backlight driving units should be hard-addressed first, in other words, the first LED backlight can be firstly turned on. The address corresponding to the driving unit 221 is defined as 0000, the address corresponding to the second LED backlight driving unit 222 is defined as 0001, and the address definition corresponding to the third LED backlight driving unit 223 is defined. The address corresponding to the 0010 and the fourth LED backlight driving unit 224 is defined as 0011. Therefore, if the processing unit 20 generates a control signal for controlling the first LED to be driven by the optical driving unit 221. The address of the address data of the address command in the control signal is the address of the first LED backlight driving unit 221, which is 0000, and the data command in the control signal specifies 2 mA. The electric current is used as the driving signal. Therefore, the control signal is transmitted to the four light-emitting diodes through the control bus bar 201. The 1412 polar body drive unit 221, 222, 223 is thinned and only the first optical drive Wu will be started as early as 221 and provides the contact February 2 ^ - of the backlight light-emitting diode 241. If it is (4) to its electrical connection, the above control signal 加 can add a start command to stop the command, = signal control ‘that is, the control signal is composed of – start command, — address command, —= t. The role of the addressing instruction and the data instruction is the same as described above, ‘this is no longer w. The start command and the cut-off command are - start orders, and the financial media is between the pure order and the age of the ant,
或其他可胳㈣發光二極财光鱗元的任何指令才具有執行的 ，力’換句話說’若在㈣訊_最初未設定有起始指令，則當處理 早兀產生㈣峨麟送至發光二極體背光驅解元時，亦益法啟動 光二極«光鶴單元崎行作動，_地，若t控制訊號的 取〜未，认械止指令’則當處理單元產生控觀餘傳送至發光二 極體背光购單元時，雖有起触令命令發光二極體背光驅動單元進 行作動，但由於此控織號並沒有設定截止指令，因此，在起始指令 之後的所有彳a令亦無法進行作動，仍是無法啟触—發光二極體背光 驅動早元以進行作動。 综合上段所述，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-種方法流㈣。首先，在步驟S3〇中， 由處理單兀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 匯流排201 α傳送此控制訊號；在步驟S32中，係首先開始執行控制 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 疋址和令t的位址:貝§fl，以開啟相同於此位址資訊的位址所相對應之 發光一極體为光驅動單元221、222、223、224;在步驟S34中，係 利用資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輪出至與其電性連接的發光二極體背光源241、242、243、 9 1361412 執行截止指令，以終止 244中所需之電流值；最終，在步驟S35中 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 制訊唬以同時控制多個發光二極體驅動單元，換言之，去有N組 二極體背光驅動單元時，其係對應小於或等於W =Or any other command that can be used to generate (four) illuminating dipoles, the force 'in other words' if the (four) message _ is not initially set with the start command, then when the processing is early (4) unicorn sent to When the light-emitting diode backlight is used to solve the problem, the light-emitting diode is also activated. The light crane unit is used to move the signal. If the control signal is not taken, the processing unit generates the control output. When the light-emitting diode backlight purchase unit is used, although the light-emitting diode backlight driving unit is activated by the touch command, since the control number does not set the cut-off command, all the commands after the start command are issued. It is also impossible to operate, and it is still impossible to start--the light-emitting diode backlight drive early element to operate. In summary, please refer to the second and fourth figures at the same time. The fourth figure is another method flow (4) of the implementation provided in the second figure. First, in step S3, a control signal is generated by the processing unit 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 convergence is utilized. The row 201 α transmits 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 according to the address and the order t is: Flu, the light-emitting unit corresponding to the address of the same address information is the light driving unit 221, 222, 223, 224; in step S34, the data command is used to determine the turned-on light-emitting diode The body backlight driving units 221, 222, 223, 224 are rotated out to the light-emitting diode backlights 241, 242, 243, 9 1361412 electrically connected thereto to perform a cut-off command to terminate the current value required in 244; finally, The flow of the entire control in step S35. 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. Corresponding to less than or equal to W =
被指定之妓二極體驅動單元係可依據所接收_控制指令中^定址 ^令與資料指令以利職定的電流量而開啟發光二極體背光源，詳而 言之’請參考紅騎*，其係為本發明之另—種絲背光控制之電 路架構的方塊示意圖，在此一實施態樣中的處理單元2〇係同時連接 -控制匯流排2Q1，與第二控継流排2〇1,，以分別提供—第—控制訊號 與-第二，制峨，並且亦與—時脈匯流排2Q2連接鱗遞與第一^ 制訊號、第二控制訊號相對應之時脈訊號，且其中第一控制指令中的 疋址‘令係包括〇〇〇〇與〇〇〇1，因此其係用以控制第一二北 光驅動私221、第二發光二極體背光驅動單^ 222，㈣:控^ 號中的定址指令則係包括0010與0011，因此其係是用以控制第三發 光二極體背光驅動單元223、第四發光二極體料驅動單元224，^ 當第-發光二極體背光驅動單^ 221、第二發光二極體背光驅動 早7C 222接收到來自處理單元的第一控制訊號後，根據其中的定址指 令=使得第-發光二極财光驅鮮元221與第二發光二極體背光驅 動單元222開啟，並根據控制指令中的資訊指令以決定第一發光二極 體背光驅動單it 221與第二發光二極體背光驅動單元222的驅動訊 號，舉例而言，當驅動訊號所提供之資訊為電流量時，也就表示資訊 指令係為啟動第一發光二極體背光驅動單元221與第二發光二極體背 光驅動單元222時所需的能量，就以本實施例來說，當其中第一控制 指令係指示提供20毫安培至〇〇〇〇位址、25毫安培至〇〇01位址時， 則第一發光二極體背光驅動單元221與第二發光二極體背光驅動單元 222係分別以20毫安培與25毫安培的電流量以進行開啟，同理，由 1361412 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毫安培至〇〇1〇位址、20毫安培至〇〇11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，伴隨於第一控 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。 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 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、0001、〇〇1〇之位址資訊時，則表 示對應於_0、_1、〇_位址之第—發光二極體^驅動單^ 221、第=發光二極體背光驅動單元222、第三發光二蹄背光驅動單 兀223係將被啟動，並且第一發光二極體背光驅動單元221、第二發 光二極體背光驅動單元222、第三料二㈣背光驅動單元223 = 據與其相對應之⑽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、第二發光二極體背光源2似、第三發光二極^背: 源243進行開啟，而由於第四發光二極體背光驅動單元224並未被指 定’因此與其電性連接的細發光二極齡光源244係不會被開啟， 然，若當上述的0000位址指令相對應之資料指令所提供之電流量為〇 時’則第-發光二極财光驅動單元221雖被啟動，但卻不會輸入任 何電流至第-發光二極體背光源241中。而此實施態樣的方法流程係 類似於第二圖所對應之第三圖、第四圖中所揭示之方法，故，於此將 不再贅述。 此外，上述之控制訊號形式可以為數位資料型態、調 或調頻資料型態’以下分別參考第六圖、第七圖與第八圖。- 當控制訊號形式為數位資料型態時，配合時序訊號讀取_定位元 數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。 1361412 例如.當時續訊號為高位準時，若讀取到一負緣（Fa||jng 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， 若定義驅動單元位址為三個位元（bit)，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 驅動單兀；然後，如C區段所示，若定義資料訊號為四個位元，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，當時序 訊號為低位準時，若讀取到一正緣（Rjsjng Edge)控制訊號，則如D 區段所示，表示一終止訊號以終止整個控制流程。 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 準位以分別決定起始訊號、定址訊號、資料訊號與終止訊號，固定時 間係以計數時脈訊號來決定。如第七圖所示，在t〇_t1時間内，定義一 特疋電反準位為起始號，接著’在h t時間内，定義一電壓準位範 圍（例如為V^-Va2)為定址訊號，且依電壓大小決定不同驅動單元 之位址；然後，在b-t3時間内，定義一電壓準位範圍（例如為_The specified 妓 diode driving unit can turn on the LED backlight according to the received current _ control command and the data command to facilitate the operation of the LED backlight, in detail, please refer to the red riding *, which is a block diagram of the circuit architecture of the other type of backlight control of the present invention. In this embodiment, the processing unit 2 is simultaneously connected to control the bus bar 2Q1 and the second control bus bar 2 〇1, to provide a -first control signal and a second, 峨, and also to the clock bus 2Q2 connected to the clock signal corresponding to the first signal, the second control signal, And wherein the address in the first control command includes 〇〇〇〇 and 〇〇〇1, so it is used to control the first two-light driving private 221, the second light-emitting diode backlight driving unit 222 (4): The address command in the control number includes 0010 and 0011, so it is used to control the third LED backlight driving unit 223 and the fourth LED product driving unit 224, ^ when - LED backlight drive single ^ 221, second LED backlight drive 7C early After receiving the first control signal from the processing unit, the second control light source 221 and the second light-emitting diode backlight driving unit 222 are turned on according to the addressing instruction of the processing unit, and according to the information in the control instruction. The command is used to determine the driving signals of the first LED 222 and the second LED backlight driving unit 222. For example, when the information provided by the driving signal is a current amount, the information command is indicated. The energy required to activate the first LED backlight driving unit 221 and the second LED backlight driving unit 222, in this embodiment, when the first control command indicates that 20 mA is provided. When the address is from 25 mA to 〇〇01, the first LED backlight driving unit 221 and the second LED backlight driving unit 222 are respectively 20 mA and 25 mA. The amperage current is turned on, and similarly, the first control signal is used by the 1361412 to activate the third LED backlight driving unit 223 and the fourth LED backlight driving unit 224, and The information command in the second control signal indicates that the address is from 25 mA to 〇〇1, and from 20 mA to 〇〇11, so the third LED backlight unit 223 and the fourth LED are provided. The backlight driving unit 224 is turned on at a current amount of 25 milliamperes and 20 milliamperes, respectively. In addition, the clock signals generated by the first control signal and the second control signal can be used as reference for the information timing of the first control signal and the second control signal. However, if the address of the control signal generated by the processing unit 20 is not set, the LED backlight driving unit corresponding to the address not set by the addressing command is not turned on, for example, when the address information in a control signal only contains When the address information of 〇〇〇〇, 0001, 〇〇1〇 indicates the first light-emitting diode ^ 221, the second light-emitting diode backlight corresponding to the address of _0, _1, 〇 _ The driving unit 222 and the third illumination two-hoof backlight driving unit 223 are activated, and the first LED backlight driving unit 221, the second LED backlight driving unit 222, and the third material (four) backlight driving unit are activated. 223 = according to the corresponding amount of current provided by the (10) instruction to electrically connect the first light-emitting diode backlight 241, the second light-emitting diode backlight 2, and the third light-emitting diode 243 is turned on, and since the fourth LED backlight driving unit 224 is not designated 'so that the fine light emitting diode source 244 electrically connected thereto is not turned on, if the above 0000 address instruction is used Current supplied by the corresponding data instruction It is square 'is - of the light emitting diode driving unit 221, although Choi is activated, but will not enter any through current - light-emitting diode backlight 241. The method flow of this embodiment is similar to the method disclosed in the third figure and the fourth figure corresponding to the second figure, and therefore will not be described herein. In addition, the above control signal form may be a digital data type, a modulated or a frequency modulated data type, and the sixth, seventh and eighth figures are respectively referred to below. - When the control signal form is a digital data type, the control signals corresponding to the timing signal read_positioning element have respectively determined the start signal, the address signal, the data signal and the termination signal. 1361412 For example, if the renewal number is high level on time, if a negative edge (Fa||jng Edge) control signal is read, the A segment indicates a start command to start the entire control flow; then, if the drive unit is defined The address is three bits (bit), as shown in the b-segment, the three-bit addressing signal is read in three more clock intervals to determine the corresponding LED backlight driving unit corresponding to the address; Then, as shown in the C section, if the data signal is defined as four bits, the four-bit data signal is read in the four clock intervals to appropriately drive the light-emitting diode, that is, The corresponding current value in the LED data signal; finally, when the timing signal is low, if a positive edge (Rjsjng Edge) control signal is read, as indicated by the D segment, an end signal is indicated to terminate the whole Control process. When the control signal is in the amplitude modulation data type, the initial signal, the address signal, the data signal and the termination signal are determined by determining the voltage level within a certain time, and the fixed time is determined by counting the clock signal. As shown in the seventh figure, during the time t〇_t1, a special electrical reverse level is defined as the starting number, and then 'in the ht time, a voltage level range (for example, V^-Va2) is defined as Addressing the signal, and determining the address of different driving units according to the voltage; then, defining a voltage level range in b-t3 time (for example, _
Vd2)為資料訊號，且依電壓大小決定不同亮度的驅動訊號，亦即決定 流過發光一極體事當之電流值；最終，在匕_ U時間内，定義一特定電 壓準位為終止訊號。設計上要注意的是，起始訊號、定址訊號、資料 訊號與終止訊號之電壓位準需控制到可以分別以免造成誤判影響顯示 效果。如果起始訊號、定址訊號、資料訊號與終止訊號之電壓&可以 有效區隔與偵測，則時脈訊號亦可省略，僅利用電壓準位的範圍來做 判定亦可。 控制訊號亦可设计為調頻資料型態，而在一定的時間内藉由訊號 頻率的不同以分別決定起始訊號、定址訊號、資料訊號與終止訊號。 設計上要注意的是，起始訊號、定址訊號、資料訊號與終止訊號之訊 號頻率需控制不重疊以免造成誤判影響顯示效果。 〜 此外，將本發明所揭露之背光源控制之電路架構應用至一顯示裝 12 1361412 置中則可獲得-可有效控制背光模组之顯示 _ 包括有-背光模組控解元、—液@日驅動—顯示架構係 中’背光模組控制單元係包括一處;單元、示單：，其 流排、複數料二極體背光驅動單元 排、—時脈匯 極體背光驅動單元以硬體定址的;;定:架=主要將發光二 時脈訊號以並行的控制方式對已定=====與Vd2) is a data signal, and the driving signal of different brightness is determined according to the voltage, that is, the current value flowing through the light emitting body is determined; finally, a specific voltage level is defined as the end signal in the time of 匕_U. . The design should pay attention to the fact that the voltage levels of the start signal, the address signal, the data signal and the termination signal should be controlled to avoid the misjudgment affecting the display effect. If the voltage of the start signal, the address signal, the data signal and the termination signal can be effectively separated and detected, the clock signal can also be omitted, and only the range of the voltage level can be used for the determination. The control signal can also be designed as a frequency modulation data type, and the start signal, the address signal, the data signal and the termination signal are determined by the difference of the signal frequencies within a certain period of time. The design should pay attention to the fact that the signal frequency of the start signal, the address signal, the data signal and the termination signal need not be controlled to overlap, so as to avoid misjudgment affecting the display effect. In addition, the circuit structure of the backlight control disclosed in the present invention is applied to a display device 12 1361412, which can be effectively controlled - the display of the backlight module can be effectively controlled _ including the backlight module control solution, liquid@ In the day-driving-display architecture system, the 'backlight module control unit includes one place; the unit, the display unit: the flow line, the multiple material diode backlight driving unit row, and the clock source body backlight driving unit are hardware Addressing;; fixed: frame = mainly to illuminate the two-clock signal in parallel control mode has been determined =====
=之間的電路佈局設計’此外可以進一步達到動態控制背= 以上所麟如實施舰日脉發明之特點，其目的錢孰習 ,者能暸解本發明之内容並據崎施，而雜定本發明之專利範圍/， ί =其他未脫離本發明所揭示之精神所完成之等效修飾或修改，仍 應包έ在以下所述之申請專利範圍中。 【圖式簡單說明】 第一圖係為習知的背光模組控制架構之方塊示意圖。 第-圖係為本發明之其中—種動態背光控制之電路架構的方塊示音 ® ° y' $三圖係為第二圖中所提供之實施態樣的方法流程圖。 第四圖為為第二财所提供之實施態樣的另—種方法流程圖。 第五圖係為本發明之另一種動態背光控制之電路架構的方塊示意圖。 第六圖為本發明之控制訊號形式為數位資料型態時之時序圖。Θ 第七圖為本發明之控制訊號形式為調幅資料型態時之時序圖。 第八圖為本發明之控制訊號形式為調頻資料型態時之時序圖。 【主要元件符號說明】 13 1361412 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 14= circuit layout between the design 'In addition to the dynamic control back = above the characteristics of the implementation of the ship's invention, the purpose of the money, you can understand the content of the invention and according to the application, the invention 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 [Simple Description of the Drawings] The first figure is a block diagram of a conventional backlight module control architecture. The first figure is a block diagram of the circuit architecture of the dynamic backlight control of the present invention. The three-figure is a flow chart of the method of the embodiment provided in the second figure. The fourth picture is a flow chart of another method for implementing the second financial situation. The fifth figure is a block diagram of another circuit structure of dynamic backlight control of the present invention. The sixth figure is a timing diagram of the control signal form of the present invention in the form of a digital data type.第七 The seventh figure is a timing diagram of the control signal form of the present invention in the form of amplitude modulation data. The eighth figure is a timing diagram of the control signal form of the present invention in the form of a frequency modulation data type. [Main component symbol description] 13 1361412 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 dynamic control light emitting diode backlight 241 first light emitting diode backlight 242 second light emitting diode backlight 243 third Light-emitting diode backlight 244 fourth light-emitting diode backlight 14