201227688 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種背光源驅動方法與背光源驅動裝 置，且特別是有關於一種三度空間顯示裝置之背光源驅動方法 與背光源驅動裝置。 【先前技術】 顯，器的進步也代表著人類在追求更真實的視覺享受。而 近年來—度工間顯示器的發展也提供了人們更進一步的視覺 感B ’除了-般影像與色彩外，更提供了立體空間的感受。 一般在二度空間顯示器使用的同時會需要搭配一種快門 眼鏡(ShUtter glasses)影像顯示技術。此種技術在影像播放時， 为別將影像分為奇數影像與偶數影像。其中，若設定右眼 =右眼衫糾’將藉由快門眼鏡而把左眼遮住而僅讓右眼 利用相同原理，之後在放上左眼影像給左眼，並將右眼201227688 VI. Description of the Invention: [Technical Field] The present invention relates to a backlight driving method and a backlight driving device, and more particularly to a backlight driving method and a backlight driving device for a three-dimensional space display device . [Prior Art] The progress of the display device also represents the pursuit of more realistic visual enjoyment by human beings. In recent years, the development of the display of the office has also provided people with a further sense of visuality. In addition to the image and color, it provides a sense of three-dimensional space. Generally, when using a two-dimensional display, it is necessary to use a ShUtter glasses image display technology. This technique divides the image into odd and even images during image playback. If you set the right eye = right eyewear correction, the left eye will be covered by the shutter glasses and only the right eye will be used for the same principle, then the left eye image will be placed to the left eye, and the right eye will be placed.
視:眼觀ί ’如此左右眼的鏡面交替開與關便能在大腦 干呈規2體影像。在左眼或右眼鏡面打開時，三度空間顯 在進行影像掃描而將影像資料放入顯 像素中的同時，快門眼鏡會同時關閉兩眼鏡面。 然而，在以往的技術中，不管在呈 2光源是持續性地全部開啟，此方式將導致三欠f不： 的貪先源在沒有呈現影像時仍、_耗電。不器 【發明内容】Vision: Eyes ί ‘The mirrors of the left and right eyes are alternately opened and closed to make a regular image of the body in the brain. When the left or right eyeglasses are open, the three-dimensional space is displayed for image scanning and the image data is placed in the display pixels, and the shutter glasses close both glasses. However, in the prior art, regardless of whether the two light sources are continuously turned on all the way, this method will cause the three sources of ignorance: the source of greed is still _ power consumption when no image is presented. No device [invention content]
3 C 201227688 本發明的目的之-就是在提供—種三度空間顯示裝置的 背光源驅動方法，其可應用於控制三度空間顯示裝置的背光 源，以改善習用技術中背光源驅動電源過於耗 本發明的再-目的是提供-種三度空間顯示褒置的背光 源驅動裝置，應用於控制三度空間顯示裂置的背光源，以節省 背光源驅動電源使用的能量。 本發明提出一種三度空間顯示裝置的背光源驅動方法，適 ，於在顯示區域中包括多個像素的三度空間顯示裝置中，其中 =像素根據所接收的資料以調整由背光源發出而透過每個 ’、的光的冗度。此背光源驅動方法包括下列步驟：將提供光 至像素的背光齡❹贿明區域。當提供資料至這些像素 日^使多健縣域逐-點亮；而當不提供f料至這些像素 時，則使多個照明區域全部點亮。 ” 發明的—個實施财，上述之背光_動方法更設定 =個預仅值範圍，每個預設值對應至其中之—的昭明區 每—，面開始提供龍至像素時歸零並開始計數。 所對i ^值洛在其中之—的預設值範圍時’點亮預設值範圍 士二1、明區域；而當所計數的值不落在預設值範圍中，即 的P二=明區域。此外’計數的頻率可與三度空間顯示裝置 的和·描線掃描頻率相當。 ，發^亦提出—種三度空間顯示裝置的背光源驅動裝 電政㈣ί包括·—組控制訊號產生電路以及—組背光源控制 制旬2號產生電路接收時脈訊號以及巾貞起始訊號，此控 產生電路並根_起始訊號與時脈訊號而產生多個控 電=二Γ光_制電路接收f光源致能訊號，此背光源控制 電性耗接至控制訊號產生電路以接收前述控制訊號，並在 201227688 背光源致能訊號被致能的時候，根據這些控制訊•產生多個 分區點亮訊號。這些分區點亮訊餘财區舰明區域並在三 度空間顯示裝置提供資料至像素時逐—點亮，並使這些照明區 域在二度空義7F裝置不提供資料至像素時全部點亮。 ，本，明的-個實施例中’上述之控制訊號產生電路包括 、^數m組㈣單π。計數器接收時脈訊號及傾起始 在2始訊號的上升緣進行重置，並根據時脈訊號而 二:接至計數器，此控制單元提供前述3 C 201227688 The object of the present invention is to provide a backlight driving method for a three-dimensional space display device, which can be applied to control a backlight of a three-dimensional space display device, so as to improve the backlight driving power supply in the conventional technology. A further object of the present invention is to provide a backlight driving device for a three-dimensional spatial display device for controlling a backlight for three-dimensional spatial display cleaving to save energy used by the backlight driving power source. The present invention provides a backlight driving method for a three-dimensional spatial display device, which is suitable for a three-dimensional spatial display device including a plurality of pixels in a display area, wherein the pixel is adjusted to be transmitted by the backlight according to the received data. The redundancy of each ', the light. The backlight driving method includes the steps of providing a backlight-lighted area of light to the pixels. When the data is supplied to these pixels, the multi-county area is turned on and off; and when the f-material is not supplied to these pixels, all of the illumination areas are illuminated. Invented - an implementation of the implementation, the above-mentioned backlight _ moving method is more set = a pre-only range, each preset value corresponds to one of the Zhaoming District every -, the face starts to provide the dragon to the pixel when zero and start Counting. For the preset value range of the i ^ value in which it is - 'lights up the preset range of the range 2, the bright area; and when the counted value does not fall within the preset range, ie P The second = bright area. In addition, the frequency of the 'counting can be equal to the sum of the scanning frequency of the three-dimensional display device. The hair is also proposed as a backlight for the three-dimensional display device. (4) ί includes group control The signal generating circuit and the group backlight control system No. 2 generating circuit receive the clock signal and the start signal of the frame, and the control generating circuit generates a plurality of control lights according to the start signal and the clock signal. The _ system receives the f-light enable signal, and the backlight control is electrically connected to the control signal generating circuit to receive the control signal, and when the backlight enable signal is enabled in 201227688, according to the control signal Partition lighting These partitions illuminate the ship's area of the Treasury and display the data in the three-dimensional display device to the pixels, and illuminate them in the second-degree 7F device without providing data to the pixels. In the present embodiment, the control signal generating circuit includes: ^m group (four) single π. The counter receives the clock signal and the tilt start is reset at the rising edge of the 2 start signal, and according to Clock signal and two: connected to the counter, this control unit provides the aforementioned
數器輸出的計數結果而決定致能這些控 在，發明的一個實施例中，上述之控制單元包括一組 組判定模組。儲存模組儲存多個預設值範圍。判定 ‘出的儲存模組以讀取這些預設值範圍，並根據計數 預設值範圍的關係而決定致能哪-個控 本發明的一個實施例中’上述之背光源控制電路包括多 閘電個邏鮮元包括—個及閘與—個或閘。及 接以光賴能訊肋及當計數輯出的計數 洛於某預設域_賴致_控制 =閘軸接至及運算結果以及當計數 相對應=;=卜的時候所致能的控制訊號，藉他 明區域，而太灭姐处-欠虹务主士 點儿各分區的照 域。如此卩m _點亮财分_照明區 此即可防正在三度空間顯示裝置的掃描線掃描時間内開 201227688 啟全部的照明區域，因此可大幅度地降低三度空間顯示裝置的 背光源的功率消耗。 為讓本發明之上述和其他目的、特徵和優點能更明顯易 懂，下文特舉較佳實施例，並配合所附圖式，作詳細說明如下。 【實施方式】 以下將配合圖式說明本案為改善習用手段缺失所發展出 來之背光源驅動方法與背光源驅動裝置。如圖丨所繪示為根據 本發明一實施例之三度空間顯示裝置的局部電路方塊圖。圖i 所揭示的三度空間顯示裝置4〇〇具有一組背光源驅動裝置1〇〇 以及一個顯示區域no。顯示區域被依背光來源而區分為 多個照明區域BL(1)〜BL(n)，每一個照明區域BL(1)〜BL(n)中 各自有由同一個背光源所照明的多個像素，每個像素根據所接 收的影像資料以調整由背光源發出而透過此像素的光的亮 度。背光源驅動裝置100利用分區點亮訊號BLCH(l)〜BLCH(n) 來分別控制與各照明區域BL(1)〜BL(n)相對應的背光源（例 如：背光燈管）。 請繼續參照圖1。背光源驅動裝置100包括一組控制訊號 產生電路120以及一組背光源控制電路130。其中，控制訊號 產生電路120透過導線接收時脈訊號YCLK以及幀起始訊號 YDIO ’並且此控制訊號產生電路12〇根據幀起始訊號Ym〇 與時脈訊號YCLK而在輸出端對應的產生點亮模式訊號 3D_COUN與多個控制訊號ch( 1)〜CH(n)。背光源控制電路i 3〇 透過導線接收背光源致能訊號BL一EN，並且背光源控制電路 130電性耦接至控制訊號產生電路12〇以接收點亮模式訊號 3D_COUN與控制訊號CH⑴〜CH⑻。在背光源致能訊號 201227688 BL_EN被致能(在此處為高準位時)的時候，背光源控制電路 130根據點亮模式訊號3D—COUN與控制訊號CH(1)〜CH(n)而 相對應地產生多個分區點亮訊號〜BLCH(n)。這些分 區點党訊號BLCH(l)〜BLCH(n)控制上述的照明區域 BL(1)〜BL(n) ’藉此在三度空間顯示裝置_提供資料至像素 時使與各照明區域相對應的背光源被逐一點亮，並在三度空間 顯示裝置400不提供資料至像素時使與各照明區域 BL( 1)〜BL(n)相對應的背光源被全部點亮。 具體地，請參照圖2，其為根據本發明一實施例的控制訊 號產生電路的局部電路方塊圖。在本實施例中，控制訊號產生 電路12〇包括計數器15〇以及控制單元160。計數器15〇具有 二個通路端，其中一個通路端透過導線接收時脈訊號yclk， 另一個通路端透過導線接收幀起始訊號YDIO，再一個通路端 透過導線輸出計數結果訊號C0UN。此計數器15〇在幀起始訊 號YDIO的上升緣進行重置(在此處為歸零狀態），並根據時脈 訊號YCLK㈣行魏。㈣單元·電性输至計數器 =〇’並根據計數器150輸出的計數結果訊號c〇un而決定致 φ 能其所提供的控制訊號CH(1)〜CH(n)中的至少一者。 更詳細地說，在本實施例中，控制單元160内被設定有多 個預=值範n，例如第—預設值範圍FR⑴到第n預設值範圍 等。且每個預設值範圍（如：FR(1)或FR⑻)對應至一個照 明，域(如：BL(1)或Bl⑻）。計數器15〇從每一幀畫面開始提 ，貧料至像麵歸零並開始賴。*當計數器⑼所計數的值 落在其中之-的預設值範圍(如：FR⑴)時，即點亮此預設值範 圍(如.FR(1))所對應的照明區域(如：BL(1))。而當計數器15〇 所計數的值不落在任一個預設值範圍中，則點亮全部的照明區 201227688 域 BL(1)〜BL(n)。 再進一步地，請繼續參照圖2，在本實施例中，控制單元 160包括儲存模組170以及判定模組18〇。儲存模組17〇儲存 f述的多個預設值範圍FR(1)〜FR(n)，並且儲存與每個預設值 範圍相對應的照明區域的相關資訊。判定模組18〇電性耦接至 儲存模組170以讀取其内儲存的預設值範圍FR(1)〜FR(n)，此 判定模組180根據計數器150輸出的計數結果訊號c〇UN與 預設值範圍FR(1)〜FR(n)的關係而決定致能控制訊^ CH(1)〜CH(n)的其中一者，並且又根據計數器15〇輸出的計數 結果訊號COUN，在判定模組18〇的輸出端產生點亮模式訊號 3D-COUN。此點亮模式訊號3D一COUN在後續用以決定是逐 一點亮或全部點亮前述的照明區域BL(1)〜BL(n)。 請參照圖3，其為根據本發明實施例之背光源控制電路的 局部電路方塊圖。在本實施例中，背光源控制電路13〇包括多 個邏輯單元，例如第一邏輯單元Lu(1)到第n邏輯單元Lu(n) 等。其中’每個邏輯單元接收來自判定模組的相對應的控制訊 號’並依序地產生對應之分區點亮訊號。每個邏輯單元所產生 的分區點亮訊號被傳輸至對應的照明區域，以使對應的照明區 域得以被點亮。後續將僅舉例解釋一個邏輯單元的電路架構與 操作方式，其他邏輯單元則可比照適用相關内容。其中，邏輯 單元LU(1)具有三輸入端’其中一個輸入端透過導線電性耦接 至背光源致能訊號BL_EN ’另一個輸入端透過導線電性耗接 至點免模式訊號3D_COUN ’再一個輸入端透過導線電性搞接 至第一控制訊號CH(1)。邏輯單元LU(1)即根據從這些輸入端 所接收的訊號而產生相對應的分區點亮訊號BLCHC1)。 具體地，邏輯單元LU(1)包括一個及閘AND1與一個或閑 201227688 OR1。及閘AND1電性耦接至背光源致能訊號BL一ΕΝ以及第 一控制訊號CH(1)，藉此產生相應的及運算結果訊號ορα。或 閘OR1電性耦接至及運算結果訊號〇PA以及點亮模式訊號 3D-C0UN ’藉此產生相對應的分區點亮訊號BLCH(l)。 為了簡化時脈訊號的設計，在實際運作的時候，計數器 150所計數的頻率可以與三度空間顯示裝置4〇〇的掃描線掃^ 頻率相當。請參照圖4，其為圖2與圖3所示的背光源驅動裝 置中的各種時脈訊號的時序圖。圖中所示者並非實際的時間比The counting of the output of the digital device determines the enabling of these controls. In one embodiment of the invention, the control unit includes a set of group decision modules. The storage module stores a plurality of preset value ranges. Determining the 'storage module to read the preset value range, and determining the enablement according to the relationship of the count preset value range. In one embodiment of the present invention, the backlight control circuit includes multiple gates. Electric logic elements include - and gates and - or gates. And the count of the ray ribs and the counts that are counted out are counted in a preset field _ Lai _ control = the gate is connected to the sum operation result and the control is enabled when the count corresponds to =; The signal, borrowed from the Ming area, and the Taishou sister-------------------------------------- So 卩m _lights the wealth _ illumination area, this can prevent the entire illumination area from being opened in 201227688 during the scan line scan time of the three-dimensional space display device, thus greatly reducing the backlight of the three-dimensional space display device. Power consumption. The above and other objects, features and advantages of the present invention will become more <RTIgt; [Embodiment] Hereinafter, a backlight driving method and a backlight driving device developed in the present invention for improving the lack of conventional means will be described with reference to the drawings. FIG. 12 is a partial circuit block diagram of a three-dimensional space display device according to an embodiment of the invention. The three-dimensional display device 4A disclosed in Fig. i has a set of backlight driving devices 1 and a display area no. The display area is divided into a plurality of illumination areas BL(1) to BL(n) according to the backlight source, and each of the illumination areas BL(1) to BL(n) has a plurality of pixels illuminated by the same backlight. Each pixel adjusts the brightness of light emitted by the backlight and transmitted through the pixel according to the received image data. The backlight driving device 100 controls the backlights (e.g., backlight tubes) corresponding to the respective illumination regions BL(1) to BL(n) by the partition lighting signals BLCH(1) to BLCH(n). Please continue to refer to Figure 1. The backlight driving device 100 includes a set of control signal generating circuits 120 and a set of backlight control circuits 130. The control signal generating circuit 120 receives the clock signal YCLK and the frame start signal YDIO ' through the wire, and the control signal generating circuit 12 illuminates the corresponding output at the output end according to the frame start signal Ym 〇 and the clock signal YCLK. The mode signal 3D_COUN and the plurality of control signals ch(1)~CH(n). The backlight control circuit i 3 接收 receives the backlight enable signal BL-EN through the wire, and the backlight control circuit 130 is electrically coupled to the control signal generating circuit 12 to receive the lighting mode signal 3D_COUN and the control signals CH(1) to CH(8). When the backlight enable signal 201227688 BL_EN is enabled (when the high level is here), the backlight control circuit 130 is based on the lighting mode signal 3D_COUN and the control signals CH(1)~CH(n). Correspondingly, a plurality of partition lighting signals ~BLCH(n) are generated. These partition point party signals BLCH(l)~BLCH(n) control the above-mentioned illumination areas BL(1)~BL(n)' to thereby correspond to the respective illumination areas when the three-dimensional display device provides data to the pixels. The backlights are illuminated one by one, and the backlights corresponding to the respective illumination areas BL(1) to BL(n) are all illuminated when the three-dimensional display device 400 does not provide data to the pixels. Specifically, please refer to FIG. 2, which is a partial circuit block diagram of a control signal generating circuit according to an embodiment of the invention. In the present embodiment, the control signal generating circuit 12 includes a counter 15A and a control unit 160. The counter 15A has two path ends, one of which receives the clock signal yclk through the wire, the other end receives the frame start signal YDIO through the wire, and the other end transmits the count result signal C0UN through the wire. This counter 15〇 is reset at the rising edge of the frame start signal YDIO (here, the return-to-zero state), and is based on the clock signal YCLK (four). (4) The unit is electrically connected to the counter = 〇' and determines at least one of the control signals CH(1) to CH(n) which φ can provide based on the counting result signal c〇un outputted by the counter 150. In more detail, in the present embodiment, the control unit 160 is configured with a plurality of pre-value ranges n, such as a first preset value range FR(1) to a nth preset value range. And each preset value range (such as: FR (1) or FR (8)) corresponds to a lighting, domain (such as: BL (1) or Bl (8)). The counter 15〇 starts from each frame of the picture, and the poor material is returned to the image plane and starts to lie. *When the value counted by the counter (9) falls within the preset value range of - (for example, FR(1)), the illumination area corresponding to the preset value range (such as .FR(1)) is illuminated (eg BL) (1)). When the value counted by the counter 15 不 does not fall within any of the preset value ranges, all the illumination areas 201227688 fields BL(1) to BL(n) are illuminated. Further, please continue to refer to FIG. 2. In this embodiment, the control unit 160 includes a storage module 170 and a determination module 18A. The storage module 17 stores a plurality of preset value ranges FR(1) to FR(n) described in the f, and stores related information of the illumination area corresponding to each preset value range. The determining module 18 is electrically coupled to the storage module 170 to read the preset value ranges FR(1) FRFR(n) stored therein, and the determining module 180 is based on the counting result signal output by the counter 150. The relationship between the UN and the preset value range FR(1) to FR(n) determines one of the enable control signals CH(1) to CH(n), and the count result signal COUN according to the counter 15〇 output A lighting mode signal 3D-COUN is generated at the output of the determination module 18A. The lighting mode signal 3D-COUN is subsequently used to determine whether to illuminate the illumination areas BL(1) to BL(n) one by one or all of them. Please refer to FIG. 3, which is a partial circuit block diagram of a backlight control circuit according to an embodiment of the invention. In the present embodiment, the backlight control circuit 13A includes a plurality of logic units, such as the first logic unit Lu(1) to the nth logic unit Lu(n) and the like. Wherein 'each logical unit receives a corresponding control signal from the decision module' and sequentially generates a corresponding partition lighting signal. The partition lighting signal generated by each logic unit is transmitted to the corresponding illumination area so that the corresponding illumination area is illuminated. The following will only explain the circuit architecture and operation mode of one logic unit, and other logic units can apply the relevant content. The logic unit LU(1) has a three-input terminal 'one of the input terminals is electrically coupled to the backlight enable signal BL_EN through the wire. The other input terminal is electrically connected to the point-free mode signal 3D_COUN through the wire. The input end is electrically connected to the first control signal CH(1) through the wire. The logic unit LU(1) generates a corresponding zone lighting signal BLCHC1 based on the signals received from these inputs. Specifically, the logical unit LU(1) includes one and the gate AND1 and one or the idle 201227688 OR1. The AND gate AND1 is electrically coupled to the backlight enable signal BL and the first control signal CH(1), thereby generating a corresponding AND operation result signal ορα. Or the gate OR1 is electrically coupled to the sum operation result signal 〇PA and the lighting mode signal 3D-C0UN' to thereby generate a corresponding partition lighting signal BLCH(1). In order to simplify the design of the clock signal, the frequency counted by the counter 150 can be equivalent to the scan line sweep frequency of the three-dimensional display device 4 在 in actual operation. Please refer to FIG. 4, which is a timing diagram of various clock signals in the backlight driving device shown in FIGS. 2 and 3. The figure shown is not the actual time ratio
例。在一般的狀況下，時脈訊號YCLK的週期大約在2〇微秒 (μδ)附近，具體數值則需視三度空間顯示器的像素以及顯示晝 面的幀頻率而定。 — 、，同時參照圖2、圖3與圖4。當背光源致能訊號bl_en 被致能(在此處為高準位)時，即啟動背光源控制電路中的 每個f輯單元(如:LU(D或LU(n))。在背光源致能訊號BL—EN 被致能(拉升至高準位），而點亮模式訊號3D—c〇UN被禁能(在 此處為低準位)時，—旦從計數器15G輸人端所輸人_起始 訊號YDIO餘升至高準位，_數器⑼會在巾貞絲訊號 YDI=的上升緣被重置，並在巾貞起始訊號YDIO的下降緣開始 進行计數。如前所述，計數的頻率除了可以設計成與三度空間 顯不裝置4CK)的掃描線掃娜率相當之外，也可以 的計數頻率。 *><’'、 如前所述’當計數H 15〇所計數的值落在某—個預設值範 11 ’日的分區點亮訊號BLCH⑻齡被致能而點亮相 對應的照㈣域。舉例來說，當計數絲在第—預設值範圍 FR(1)之山中’則控制訊號CH⑴會被致能。此時，及閑a顧 兩輸入端都處於高準位，因此及閘AND1的輸出端所輸出的及 201227688 運算結果訊號OPA被拉升至高準位。在此同時，或閘OR1因 為接收到高準位的及運算結果訊號OPA，因此或閘0R1的輸 出端所輸出的點亮訊號BLCH(l)也被拉升至高準位，並因此點 壳對應的照明區域BL(1)。其餘邏輯單元LU(2)〜LU(n)的相關 操作與上述之邏輯單元LU(1)方法頗為類似，在此不多加贅述。 >值得注意的是，一旦計數器15〇的計數值不落在任何預設 值範圍FR(1)〜FR(n)中，則拉升點亮模式訊號3〇_(：〇1；1^至高 準位。此時，或閘〇R1因為輸入點亮模式訊號3D—被 拉，，高準位，因此或閘〇R1所輸出的點亮訊號blch(”也 會是局準位。請-併參照圖4，由於在此實施例中的背光源控 制電路130 _各邏輯單元LU⑴〜LU⑻有相同的電路架構， 因此在點亮模式訊號3D—C0UN為高準位的狀況下，所有的分 區點亮訊號BLCH⑴〜BLCH⑻都會被拉升至高準位而 部的照明區域BL⑴〜:BL⑻。 要另外說明的是’前述的每一個邏輯單元Lu⑴〜 f =要都包括相_電路。這些邏輯單元Lu⑴〜lu⑻只要 月匕夠元成相同的操作即可，至於電路讯 4或苴他+ 電路°又冲方可以分別採用圖 外及具他》又汁方式為之，並無特定限制。 用手發明對技術進行改良後，已可有效消除習 一又二間顯示裝置的掃描線掃描時間内啟動全 j照明區域。目此全部的照㈣域將不至 低。 瑕置的♦先源整體功率消耗量也可以更為降 雖然本發明已以較佳實施 本發明，任何孰習 上…、其並非用以限定 内，當可作些許之更動盥潤 發月之精神和棘圍 71飾因此本發明之保護範圍當視後 201227688 附之申請專利範圍所界定者為準。 【圖式簡單說明】 施例所揭示的三度空間顯示裝置的局 圖1為本發明一實 部電路方塊圖。 圖2為本發明一實施例所揭示的控制訊號產生電路的 部電路方塊圖。 ° 施例的背光源控舰_局部電 圖3為根據本發明一實 路方塊圖。example. Under normal conditions, the period of the clock signal YCLK is approximately 2 〇 microseconds (μδ), and the specific value depends on the pixel of the three-dimensional display and the frame frequency of the display surface. —, and refer to Figures 2, 3 and 4. When the backlight enable signal bl_en is enabled (here high level), each unit in the backlight control circuit is activated (eg LU (D or LU(n)). In the backlight The enable signal BL-EN is enabled (pushed to a high level), and the lighting mode signal 3D-c〇UN is disabled (here low level), as from the counter 15G input terminal Input _ start signal YDIO surplus to high level, _ number device (9) will be reset on the rising edge of the scarf signal YDI=, and start counting at the falling edge of the frame start signal YDIO. In addition to the scan line sweep rate which can be designed to be comparable to the scan rate of the third-degree spatial display device 4CK), the count frequency can also be used. *><'', as mentioned before 'When the count H 15 〇 the value counted on a certain preset value of the range 11 ', the partition lighting signal BLCH (8) age is enabled to light up the corresponding photo (4) Domain. For example, when the counting wire is in the range of the first preset value range FR(1), the control signal CH(1) is enabled. At this time, both the input and the idle input are at a high level, so the output signal OPA outputted by the output of the gate AND1 and the 201227688 operation result is pulled to the high level. At the same time, the OR gate OR1 receives the high-level operation result signal OPA, so the illumination signal BLCH(l) outputted from the output of the gate 0R1 is also pulled up to the high level, and thus the point shell corresponds. Illumination area BL(1). The related operations of the remaining logical units LU(2) to LU(n) are quite similar to the above-described logical unit LU(1) method, and will not be described here. > It is worth noting that once the count value of the counter 15〇 does not fall within any of the preset value ranges FR(1) to FR(n), the lighting mode signal is pulled up 3〇_(:〇1;1^ At the highest level, at this time, or the gate R1 is pulled because the input lighting mode signal 3D is pulled, the high level, or the lighting signal blch (" which is output by the gate R1 will also be the level. Please - Referring to FIG. 4, since the backlight control circuit 130_the logic units LU(1) to LU(8) in this embodiment have the same circuit structure, all the partitions are in the state where the lighting mode signal 3D_C0UN is at a high level. The lighting signals BLCH(1) to BLCH(8) are all pulled up to the high-level illumination area BL(1)~:BL(8). It is to be noted that each of the aforementioned logical units Lu(1)~f=includes the phase_circuit. These logic units Lu(1) ~lu(8) As long as the month is enough for the same operation, as for the circuit signal 4 or the +++ circuit, the rushing side can use the outside and the other way, there is no specific limit. After the technology is improved, it can effectively eliminate the one and two display devices. The entire j illumination area is activated during the scan line scan time. The entire (4) field will not be low. The overall power consumption of the device may also be reduced. Although the present invention has been preferably implemented, Any of the bad habits..., it is not intended to be limited, and the spirit of the invention may be made to change the spirit of the moon and the thorns. Therefore, the scope of protection of the present invention is subject to the definition of the patent application scope of 201227688. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a real circuit of the present invention. FIG. 2 is a circuit block of a control signal generating circuit according to an embodiment of the present invention. Fig. ° The backlight control ship of the example _ local electrogram 3 is a real circuit block diagram according to the present invention.
圖4為圖2與圖3所示的背光源驅動裝 的時序圖。 置的各種時脈訊號 【主要元件符號說明】 400 :三度空間顯示裝置 1〇〇 :背光源驅動裝置 110 :顯示區域 BL⑴〜BL(n):照明區域 120 :控制訊號產生電路 130 :背光源控制電路 YCLK :時脈訊號 YDIO :幀起始訊號 BLCH⑴〜BLCH(n):分區點亮訊號 CH⑴〜CH(n):控制訊號 BL_EN :背光源致能訊號 150 :計數器 FR(1)〜FR(n):預設值範圍 11 201227688 160 :控制單元 COUN :計數結果訊號 170:儲存模組 180 :判定模組 3D_COUN :點亮模式訊號 LU(1)〜LU(n):邏輯單元 AND1 :及閘 OR1 :或閘 OPA :及運算結果訊號Fig. 4 is a timing chart of the backlight driving device shown in Figs. 2 and 3. Various clock signals [Description of main component symbols] 400: Three-dimensional space display device 1: Backlight driving device 110: Display areas BL(1) to BL(n): Lighting area 120: Control signal generating circuit 130: Backlight Control circuit YCLK: clock signal YDIO: frame start signal BLCH (1) ~ BLCH (n): partition lighting signal CH (1) ~ CH (n): control signal BL_EN: backlight enable signal 150: counter FR (1) ~ FR ( n): preset value range 11 201227688 160 : control unit COUN: counting result signal 170: storage module 180: determination module 3D_COUN: lighting mode signal LU (1) ~ LU (n): logic unit AND1: and gate OR1: or gate OPA: and operation result signal
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