TW200919431A

TW200919431A - Liquid crystal display device

Info

Publication number: TW200919431A
Application number: TW97122897A
Authority: TW
Inventors: Masahiko Takeoka; Seiji Kawaguchi
Original assignee: Toshiba Matsushita Display Tec
Priority date: 2007-07-06
Filing date: 2008-06-19
Publication date: 2009-05-01
Also published as: TWI396168B

Abstract

A display area in a liquid crystal display apparatus is divided into five blocks extending in the lateral direction, is controlled to have a black writing period, a video writing period and a video holding period in each block in this order, and is controlled to delay the video writing period of the kth block in comparison with the video writing period in the (k-1)th block by a predetermined time period.

Description

200919431 九、發明說明：【發明所屬之技術領域】本發明係關於一種液晶顯示裝置者。【先前技術】自以往以來’在用以改善動晝視認性之高速響應之液晶顯示裝置中，可考慮應用背光源（backlight)亮度控制來提昇對比《為此之故，乃以既可使背光源之亮度依據影像改 ’爽，而且即使壳度之區間（range)切換亦仍可將所顯示之伽馬（gamma)特性保持於理想之狀態之方式來切換伽馬特性。以此種高速響應為特徵之液晶顯示裝置而言，有例如〇CB(〇ptlcaiiy compensated bend，光學補償彎曲）型之液晶』不裝置，係搭載於液晶電視或液晶監視器（⑺〇等 (參照例如日本特開2004_185027號公報）。此〇CB型液晶顯不裝置係為了防止從波浪（sPray)配向朝彎曲（bend)配向逆轉移，而提出一種所謂「無閃爍（flashingless)驅動法」之方案。此無閃爍驅動法係包含在1訊框（frame)期間内將黑影像信號寫入至各像素之黑寫入期間、將影像信號寫入至各像素之影像寫人期間、及保持寫人至各像素之影像信號，而在此期間將背光源點燈之影像保持期間。藉由使用此種無閃螺驅動法，即可在不會引起逆轉移之情形下顯八鮮明之圖像。不 A然而’纟上述之液晶顯示裝Η，係在被判斷為影像明冗之情形下’以背光源亮度，並且將伽馬特性切換為使 I3197I.doc 200919431 攸暗到明之傾斜倒下之方向，而在被判斷為影像黑暗之情形下，係降低背光源亮度，並且將伽馬特性切換為使從暗到明之傾斜立起之方向，藉此而以在區間更為廣泛之範圍下之伽馬特性來表現影像。關於此影像之明暗之判斷方法，係例如有藉由將在影像 1訊框内之各像素之灰階予以平均之灰階位準來判斷之方200919431 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a liquid crystal display device. [Prior Art] In the past, in the liquid crystal display device for improving the high-speed response of dynamic visibility, it is conceivable to apply backlight brightness control to enhance the contrast. The brightness of the source is changed according to the image, and the gamma characteristic can be switched in such a manner that the displayed gamma characteristic is maintained in an ideal state even if the range of the shell is switched. A liquid crystal display device characterized by such a high-speed response is, for example, a liquid crystal television or a liquid crystal monitor (for example, a liquid crystal television or a liquid crystal monitor) (for example, a liquid crystal display device of the type CB). For example, Japanese Laid-Open Patent Publication No. 2004-185027. This CB type liquid crystal display device proposes a so-called "flashingless" driving method in order to prevent reverse transfer from the sPray alignment to the bend alignment. The flicker-free driving method includes a black writing period in which a black image signal is written to each pixel during a frame period, a video signal is written to each pixel, and a writer is kept. The image signal of each pixel is held during the period during which the image of the backlight is turned on. By using such a non-flashing driving method, an image that is vivid can be displayed without causing reverse transfer. Not A, however, 'the above LCD display is based on the brightness of the backlight, and the gamma characteristic is switched to make the I3197I.doc 200919431 dark. In the case where the tilt of the slanting direction is reversed, and in the case where it is judged to be dark in the image, the brightness of the backlight is lowered, and the gamma characteristic is switched to the direction in which the tilt from the dark to the bright is raised, thereby making it more in the interval. The image is expressed for a wide range of gamma characteristics. The method for judging the brightness of the image is determined, for example, by averaging the gray levels of the gray scales of the pixels in the image frame 1. square

法、或疋藉由在灰階分布（histogram)取各像素之灰階而存在最多之灰階位準來判斷之方法等。依據由在匕等判斷方法所決定之灰階位準而< 背光源亮度為可變。以此可變方法而言，係提出一種藉由pwM(p* Width Modulation，脈衝寬度調變）使脈衝寬度為可變之方法、及使電壓或電流為可變之方法等各樣之方法之方案。如以上所述藉由與影像連動來切換背光源亮度，由於在從最大灰階，而且，從最大背光源亮度到最低灰階，、而且’到最低背光源亮度之廣泛之範圍了，從液晶所顯示之亮度為可變，因此可謀求大幅之對比提昇。此外，以背光源亮度而言，除了使其最大點燈之條件以外’會使亮度降低，因此相較於習知之方式總是點燈光源，亦可減低電力。 +七、，·…穴《邶凴度之時序而言’首先係將某訊框時點(例如設A「第a訊框期間」）之影像取入，在第㈣）訊框期間實施上述之平均斤理或灰階分布處理，而算出背光源亮度或伽馬特性。处因此，實際上切換呰止- a l 、者忐源梵度者即成為第（a+2)訊框期 131971.doc 200919431 間，而延遲2訊框進行控制。由丄座生所輸出之影像源凴度之偏_，因此會有看到因為背光源亮度所導致參差不齊或亮度變化延遲之異常之影像之問題。因此’乃將從影像信號源所輸入之影像信冑，在第&訊框期間予以取入，並且保存於訊框記憶體。再者，在第 (a+Ι)訊框期間算出背光源亮度與伽馬特性之後，在第 (a+2)訊框期間㈣f光源亮度與伽馬特性訊框記憶體之料輸出。使保存於藉由活用此種訊框記憶體，即可施加與影像對應之背光源壳度與伽馬之控制。 ,然而若為此種方&，如上所述最低f有記憶3訊框份之影像之訊框記憶體，而會有成本上升’且招致連接於液晶面板之電路基板之安裝空間之增大之問題。因此，本發明係有鑑於上述問題而提供一種可將記憶體容量削減，並且可鮮明地顯示影像之液晶顯示裝置。【發明内容】本發明係一種液晶顯示裝置，其包含：液晶面板，其於顯示區域中包含：⑺條信號線，在縱方向延伸；η條掃描線’其在橫方向延伸；及複數個像素，其配置成矩陣狀；背光源，其用以照明前述液晶面板；源極（source)驅動器，其用以將影像信號與非影像信號輸出至前述各信號線；閘極驅動器，其用以將閘極信號輸出至前述各掃描線；第1控制部，其控制以構成為將前述非影像信號寫入至 131971.doc 200919431 前述各像素之非影像信號寫曼俞行、夂# J 乃间將m述影像信號寫入 …二述各像素之影像寫人期間、將寫人至前述各像述影絲號予以保持之影像保持期間之順序，及引 f 2控制部，其用以控制前述背光源之點減燈；月述顯不區域係分割為從在橫方向延 —The method, or the method of judging by the gray level of each pixel in the gray scale distribution (histogram). The backlight brightness is variable according to the gray level determined by the judgment method such as 匕. In this variable method, a method of making the pulse width variable by pwM (p* Width Modulation) and a method of making the voltage or current variable are various methods. Program. Switching the backlight brightness by interlocking with the image as described above, due to the wide range of brightness from the maximum gray level, and from the maximum backlight brightness to the lowest gray level, and from the range of the minimum backlight brightness, from the liquid crystal The brightness displayed is variable, so a substantial increase in contrast can be achieved. Further, in terms of the brightness of the backlight, the brightness is lowered in addition to the condition of maximizing the lighting, so that the light source can be lighted as compared with the conventional method, and the electric power can be reduced. +7, ,································································································ The average brightness or gray scale distribution is processed to calculate the backlight brightness or gamma characteristics. Therefore, in fact, switching between - a l, and the source of the vanguard is the (a + 2) frame period 131971.doc 200919431, and the delay 2 frame for control. Since the image source is outputted by the 座 seat, there is a problem that the image of the image is abnormal due to the unevenness of the backlight or the delay of the brightness change. Therefore, the image signal input from the image source is taken in during the & frame and stored in the frame memory. Furthermore, after the luminance and gamma characteristics of the backlight are calculated during the (a+Ι) frame, the luminance of the f-light source and the output of the gamma characteristic frame memory during the (a+2) frame period are (4). By using the frame memory, the backlight shell and gamma control corresponding to the image can be applied. However, if it is such a square &, as described above, the lowest f has a frame memory of the image of the memory frame, and there is a cost increase, and the installation space of the circuit substrate connected to the liquid crystal panel is increased. The problem. Accordingly, the present invention has been made in view of the above problems, and provides a liquid crystal display device which can reduce the capacity of a memory and can clearly display an image. SUMMARY OF THE INVENTION The present invention is a liquid crystal display device comprising: a liquid crystal panel comprising: (7) signal lines extending in a longitudinal direction; n scanning lines extending in a lateral direction; and a plurality of pixels in a display region a backlight, which is used to illuminate the liquid crystal panel; a source driver for outputting image signals and non-image signals to the aforementioned signal lines; and a gate driver for The gate signal is output to each of the scan lines; the first control unit is controlled to write the non-image signal to 131971.doc 200919431. The non-image signal of each pixel is written by Man Yuxing, 夂#J. The description of the video signal is described in the following steps: The point of the source is reduced; the monthly description is not divided into sections from the horizontal direction -

區塊（惟l<L<n); 區塊到第L 前述第2控制部係在每一前述區塊 i^L ^ 'ηΐ ά/ ία 且’在則述各區塊之則杨像保持期間中使前㈣光㈣^ 各〔卜本發明係—種液晶顯示裝置板，其於顯示區域中包 …液曰曰面條掃描線，且在#/条以線’在縱方向延伸，· η 陣狀;向延伸；及複數個像素，其配置成矩背光源’其用以照明前述液晶面板；源極驅動器，立用述各信號線；〃 “像信號與非影像信號輸出至前閘極驅動器’其用第1控制部，u輸出至則述各掃描線；义、/、制以構成為將前述非影像卢京入Ρ 刖述各像辛之非互F。彳冢1s號寫入至至前述各像素之影像寫入期間、將=切信號寫入述影像信號予以㈣寫入至可述各像素之前 — 保持之衫像保持期間之順庠.b 第2控制部，其用以之丨頁序’及前if翻- "制刖述月光源之點滅燈，· 區塊（其中1 < L < n);、、在秩方向延伸之第1區塊到第乙前述第1控制部係依每—么則述區塊控制以成為前述非影 131971.doc 200919431 之順^寫入期間、前述影像寫入期間、前述影像保持期間本=係-種液晶顯示裝置，其包含：液晶面包含號線，在縱方向延伸;n條掃: ^在檢方向延伸；及複數個像素，其配置成矩陣狀. 月光源，其用以照明前述液晶面板；， Γ 述2號驅線動器’其用以將影像信號與非影像信號輸出至前 «㈣姉號”至料各掃描線；丄::”其控制以構成為在1訊樞期間將前述非影像影像信號寫人至前述各像素之影像寫人期間、將=二别述各像素之前述影像信號至序；及行<衫像保持期間之順第2控制部’其用以控制前述背光源之點滅燈；Block (only l<L<n); block to Lth The second control unit is in each of the aforementioned blocks i^L ^ 'ηΐ ά / ία and 'the image is maintained in each block During the period, the front (four) light (four) ^ each [the present invention is a type of liquid crystal display device board, which is covered in the display area... the liquid noodle scan line, and the #/ strip is extended in the longitudinal direction by the line, · η Array; extending; and a plurality of pixels configured as a rectangular backlight for illuminating the liquid crystal panel; source driver for each signal line; 〃 "image signal and non-image signal output to the front gate The driver 'uses the first control unit, u outputs the respective scan lines; the sense and/or system configures the non-image Lu Jing to describe the non-mutual F of each image. The 彳冢1s number is written. The image writing period of each pixel is described, and the =-cut signal is written into the video signal, and (4) is written before the pixel can be described. - The second image control period is maintained. b. The second control unit is used for The page order 'and the previous if - -quot; system to describe the light source of the light, · block (1 < L <n); The first block to the first control unit extending in the rank direction is controlled by the block to be the write period of the non-shadow 131971.doc 200919431, the image writing period, and the image. The present invention relates to a liquid crystal display device comprising: a liquid crystal surface comprising a number line extending in a longitudinal direction; n scans: ^ extending in a detection direction; and a plurality of pixels arranged in a matrix. For illuminating the aforementioned liquid crystal panel; , the second drive driver for outputting the image signal and the non-image signal to the front «(4) nickname to each scan line; 丄::" During the 1st pivot period, the non-image video signal is written to the image writer of each pixel, and the image signal of each pixel is sequenced to the sequence; and the line < second control of the shirt image retention period ' is used to control the backlight of the aforementioned backlight;

前述顯示區域係分割為從在橫方向延伸區塊（惟l<L<n); 不匕现到第L 前述第1控制部係 ⑴依每-前述區塊控制以成為間、前述影像寫入期間、前述影像保持寫入期 (2)控制以使第k區塊（惟1<k<L)之前 ⑹）區塊之前述影像寫入期間延遲特定時間T 4間較第此外，本發明係一種液晶顯示裝置其勺人板’其於顯示區域中包含、條信號線:二=: I3I97i.doc -Ϊ0- 200919431 條掃描線，其在橫方命a 陣狀；彳向延伸；及複數個像素，其配置成矩背光源’其用以照明前述液晶面板；源極驅動器，其用以％ ρ 述各信號線； ^像Μ與非影像信號輸出至前其用以將脈衝(pulse)狀之閑極信號輸出至則述各掃描線；王第1控制部，其控制以错士、& w 二冓成為將珂述非影像信號寫入至别述各像素之非影像信號寫入 ^ , 间將刖述影像信號寫入至财述各像素之影像寫入期間、將寫入至前述 •义述影像信號予以保持之影像保持期間之順序；& 之别第2控制部’其用以控制前述背光源之點滅燈；The display area is divided into a block extending from the horizontal direction (only l<L<n); the first control unit (1) is controlled by the first control unit (1), and the image is written by the block. During the period, the image retention write period (2) is controlled such that the image writing period of the k-th block (only 1 <k<L) before (6)) is delayed by a specific time T 4 , and the present invention is A liquid crystal display device has a scoop board which includes a strip signal line in the display area: two =: I3I97i.doc - Ϊ0- 200919431 scan lines, which are in the horizontal direction, a matrix; a slanting extension; and a plurality of a pixel configured to be a rectangular backlight 'used to illuminate the liquid crystal panel; a source driver for expressing each signal line; Μ Μ and non-image signals are outputted to the front for use in a pulse shape The idle signal is output to the respective scanning lines; the first control unit of the king controls the non-image signals written in the non-image signals to be described as non-image signals by the mismatch and the &w; Write the video signal to the image writing period of each pixel of the accounting, • the sense to be the image of said video signal held during the holding of the sequence; & second control unit of the other 'which is used to control the blinking light of the backlight;

前述顯示區域係分割為從在橫方向延伸之第旧區塊（其中l<L<n) ; J 前述背光源係依每一前述區塊包含光源；前述第1控制部係 ⑴依每-前述區塊控制以成為前述㈣像信㈣μ 間、前述影像寫人期間、前述影像保持期間之順序；/ 々U)控制以使第k區塊（惟1<k印之前述影像寫入期間較第（k-Ι)區塊之前述影像寫入期間延遲特定時間；The display area is divided into an old block extending from the horizontal direction (where l<L<n); J the backlight includes a light source for each of the blocks; the first control unit (1) is per-the foregoing The block control is in the order of (4) the image (four) μ, the image writing period, and the image holding period; / 々 U) control so that the kth block (only 1 <k printed in the image writing period) The aforementioned image writing period of the (k-Ι) block is delayed by a specific time;

前述第2控制部係（1)將前述第k區塊之前述光源之亮度’修正為前述第（k-Ι)區塊之前述光源之亮度之特定之範圍内，⑺僅在每-前述區塊之各個前述影像保持期^以: 述經修正之亮度使前述各光源點燈，且在其以外之期間I 131971.doc -11 - 200919431 燈此外，本發明係一種液晶顯示裝置，其包含：液晶面板，其於顯示區域中包含：„^条信號線，在縱方向延伸；η 條掃描線，其在橫方向延伸；及複數個像素，其配置成矩陣狀；背光源，其用以照明前述液晶面板；源極驅動器，其用以將影像信號與非影像信號輸出至前述各信號線；閘極驅動器，其用以將脈衝狀之閘極信號輸出至前述各掃描線；第1控制部，其在m框期間中，控制以構成為將前述非影像信號寫人至前述各像素之非影像信號寫人㈣、將前述影像信號寫人至前述各像素之影像寫人期間、將寫入至前述各像素之前述影像信號予以保持之影像保持期間序；及只 Ο :2控制部，其用以控制前述背光源之點滅燈；前述顯示區域係分割為從在樺方The second control unit (1) corrects the brightness of the light source of the kth block to a specific range of the brightness of the light source of the (k-th) block, and (7) only in each of the aforementioned areas. Each of the foregoing image retention periods of the block is: a modified brightness that causes the respective light sources to be lit, and in other periods I 131971.doc -11 - 200919431 lamps. Further, the present invention is a liquid crystal display device comprising: a liquid crystal panel comprising: „^ a signal line extending in a longitudinal direction; n scanning lines extending in a lateral direction; and a plurality of pixels arranged in a matrix; the backlight is used for illumination a liquid crystal panel; a source driver for outputting an image signal and a non-image signal to each of the signal lines; and a gate driver for outputting a pulsed gate signal to each of the scan lines; the first control unit During the m-frame period, the control is configured to write the non-image signal to the non-image signal writer (4) of each pixel, and write the image signal to the image writer of each pixel, and write to And an image retention period in which the image signals of the pixels are held; and a control unit for controlling the backlight of the backlight; the display area is divided into

'、万向延伸之第1區塊到第L 區塊（其中1 <L<n); 前述背光源係依每一前述區塊包含光源；前述第丨控制部係依每—前述區制'以 ^ ^ ^ ^ Λ ts Μ -, 晁检制以成為前述非影像1 口泷寫入期間、刖述影像寫入期义之順序； 4間、則述影像保持期間前述第2控制部係（1)依每一訊算出前、十、古电月間根據則述影像信號异出則述各光源之7C度；（2)將目成框期間之前述各光源 131971.doc -12- 200919431 之前述亮度，修正為較前流 & ^ 別訊框期間前面一個訊框期間中之前述各光源之亮廑之正& 如卜a + 又之干均值之特定之範圍内；（3)僅在母一别述區塊之各個前 ^ ⑴也讀保持期卩日1以前述經修正之', the first block to the Lth block of the universal extension (where 1 < L <n); the backlight includes a light source according to each of the foregoing blocks; the foregoing first control unit is based on each of the aforementioned zones '^^ ^ ^ Λ ts Μ -, the detection system is in the non-image one-port write period, and the description of the image writing period is used; and the second control unit is in the image holding period. (1) Calculate the 7C degrees of each light source according to the image signal before the calculation of each signal before the first, tenth, and the old electricity month; (2) The foregoing light sources 131971.doc -12- 200919431 during the frame period The brightness is corrected to be within a specific range of the positive sum of the aforementioned light sources in the preceding frame period during the previous frame & ^ frame period, such as a + a dry average; (3) only Before the mother of each of the other sections, (1) also read the retention period, the next day, as amended as described above.

壳度使前述各光源點燈，且A 且在其以外之期間滅燈。綜上所述，本發明只要準備用以儲存每—區塊之影像作號之記憶體即可，可較習知削減記憶體容量。 ° 【實施方式】The shell degree causes the aforementioned respective light sources to be lit, and A and the lamps are turned off during the other periods. In summary, the present invention can reduce the memory capacity as long as the memory for storing the image number of each block is prepared. ° [Embodiment]

以下根據圖式說明本發明之奴β之一實施形態之OCB型之液晶顯示裝置。 (第1實施形態）茲根據圖1〜圖4說明本發明之第J實施形態之〇cB型之液晶顯示裝置。 (1)液晶顯示裝置之構成兹根據圖1說明本實施形態之液晶顯示裝置之構成。圖工係為表示OCB型之液晶顯示裝置之構成之區塊圖。此OCB型之液晶顯示裝置係例如具備7〜9吋之液晶面板 1 〇、背光源11、源極驅動器12、閘極驅動器丨3、控制器 (C〇ntr〇ller)14、區塊記憶體15、輸入電源16、液晶驅動電壓產生電路17。液晶面板10係包含陣列（array)基板與對向基板，於此陣列基板中係以彼此正交之方式布線有信號線與掃描線，且於此等交點設有TFT(Thin Film Transistor，薄膜電晶體），此外’於陣列基板與對向基板之間挾持有〇CB模式之液曰曰另外’本實施形悲之液晶面板1 0係設為在縱方向形成 131971.doc -13· 200919431 〜m條線之信號線，且在橫方向形成i〜n條線之掃描線。二如，在 WVGA(Wide Video Graphics Array，寬榮幕顯示器）之情形下，由於係為800條（xRGB)x48(H·，因此成為 n=480 。背光源丨1係配置於液晶面板10之背面。關於此背光源" 係於後說明。區塊記憶體15係用以暫時儲存所輸入之影像信號之資料。關於此區塊記憶體1 5亦於後說明。輸入電源1 6係將電力供給至背光源11、控制器14及液晶驅動電壓產生電路17，且液晶驅動電壓產生電路17係依據將顯示用資料顯示於液晶面板10之時序，調整供給至源極驅動器12及閘極驅動器13之電壓。閘極驅動器13係將閘極信號供給至液晶面板1〇之掃描線，而源極驅動器12係將與影像信號等對應之電壓供給至液晶面板1 0之信號線。源極驅動器1 2係具備D/A轉換部23及位移暫存器（shift register)24 。關於控制器14係於後說明。 (2)背光源11之結構接著根據圖3說明背光源1 1之結構。本實施形態之背光源1 1係包含導光板丨丨丨、及丨〇個 LED(light-emitting diode，發光二極體）11 2。在圖3中，於導光板U1之左端部與右端部之各個，依每一特定間隔埋設有5個LED 112。此外，配於左右端部之 131971.doc 14 200919431 LED 11 2係設於相對向之位置。藉由上述之LED 112之配置，導光板111係分割為從在橫方向延伸之第1區塊111 a到第5區塊111 e。再者’若與第1區塊111 a對應之2個LED 112點燈，則僅此導光板111之第1區塊111 a點燈’而顯示與此點燈之第1 區塊111 a對應之液晶面板1 〇之影像。如上所述由於將背光源11分成5個區塊，故因為此所顯广示之顯示區域之區塊亦分割為5個。例如’如上所述本實 1 施形態係為WVGA，因此成為以下之關係。在第1區塊中，與第1掃描線到第96掃描線對應之顯示區域係成為第1區塊。第2區塊係與第97掃描線到第192掃描線對應之顯示區域成為第2區塊。第3區塊係與第193掃描線到第288掃描線對應之顯示區域成為第3區塊。；, 第4區塊係與第289掃描線到第384掃描線對應之顯示區域成為第4區塊。第5區塊係與第385掃描線到第480掃描線對應之顯示區域成為第5區塊。另外’此區塊之分法雖係將480條掃描線均等分割為5 個’惟不以此為限，亦可設為1〇〇、100、8〇、1〇〇、1〇〇條之分法’再者亦可使位於邊界之區域之掃描線重複。 (3)區塊記憶體15之結構區塊記憶體1 5並非如習知為儲存1訊框期間之影像信號 131971.doc . 1 c 200919431 者’而由3個記憶體構成，於各記憶體儲存1區塊份之影像 ^號。在此所謂1區塊份之影像信號係儲存用以進行上述之每一區塊之顯示之影像信號。另外’在以下之說明中，係以儲存此1區塊份之影像並顯示之期間稱為1區塊期間。 (4)在液晶顯示裝置中之顯示動作接著使用圖1說明液晶顯示裝置中之控制器14之顯示動作。Hereinafter, an OCB type liquid crystal display device of one embodiment of the slave of the present invention will be described with reference to the drawings. (First Embodiment) A liquid crystal display device of the 〇cB type according to the Jth embodiment of the present invention will be described with reference to Figs. 1 to 4 . (1) Configuration of Liquid Crystal Display Device A configuration of a liquid crystal display device of this embodiment will be described with reference to Fig. 1 . The drawing is a block diagram showing the constitution of an OCB type liquid crystal display device. The OCB type liquid crystal display device includes, for example, a liquid crystal panel 1 7 of 7 to 9 〇, a backlight 11 , a source driver 12 , a gate driver 丨 3 , a controller (C〇ntr〇ller) 14, and a block memory. 15. Input power source 16, liquid crystal drive voltage generating circuit 17. The liquid crystal panel 10 includes an array substrate and a counter substrate, wherein the array substrate is wired with a signal line and a scanning line, and a TFT (Thin Film Transistor) is disposed at the intersection. The transistor), in addition, 'the liquid crystal panel of the CB mode is held between the array substrate and the counter substrate. The liquid crystal panel 10 of the present embodiment is formed in the vertical direction. 131971.doc -13· 200919431 ~ A signal line of m lines, and a scan line of i to n lines is formed in the lateral direction. For example, in the case of WVGA (Wide Video Graphics Array), since it is 800 (xRGB) x48 (H·, it becomes n=480. The backlight 丨1 is disposed in the liquid crystal panel 10 The back side. About this backlight " is described later. The block memory 15 is used to temporarily store the information of the input image signal. The memory of this block is also described later. Power is supplied to the backlight 11, the controller 14, and the liquid crystal driving voltage generating circuit 17, and the liquid crystal driving voltage generating circuit 17 is supplied to the source driver 12 and the gate driver in accordance with the timing at which the display data is displayed on the liquid crystal panel 10. The gate driver 13 supplies a gate signal to the scanning line of the liquid crystal panel 1B, and the source driver 12 supplies a voltage corresponding to the image signal or the like to the signal line of the liquid crystal panel 10. The source driver The 1 2 system includes a D/A conversion unit 23 and a shift register 24. The controller 14 will be described later. (2) Configuration of Backlight 11 Next, the configuration of the backlight 11 will be described with reference to Fig. 3 . This implementation The backlight 1 1 includes a light guide plate 丨丨丨 and an LED (light-emitting diode) 11 2 . In FIG. 3 , each of the left end and the right end of the light guide plate U1 Five LEDs 112 are embedded at each specific interval. In addition, the 131971.doc 14 200919431 LED 11 2 is disposed at the opposite positions. The light guide plate 111 is configured by the LED 112 described above. The first block 111a to the fifth block 111e extending from the horizontal direction are divided. If the two LEDs 112 corresponding to the first block 111a are lit, only the first light guide 111 1 block 111 a lights up 'and displays the image of the liquid crystal panel 1 对应 corresponding to the first block 111 a of the lighting. As described above, since the backlight 11 is divided into five blocks, it is widely used because of this. The block in the display area is also divided into five. For example, the above-described configuration of the present embodiment is WVGA, and thus the relationship is as follows. In the first block, the first scan line to the 96th scan line are formed. The corresponding display area is the first block. The display area corresponding to the 97th scanning line to the 192th scanning line of the second block becomes The second block. The display area corresponding to the 193th scan line to the 288th scan line of the third block system becomes the third block. ;, the display of the 4th block system corresponding to the 289th scan line to the 384th scan line The area becomes the fourth block. The display area corresponding to the 385th scan line to the 480th scan line of the fifth block system becomes the fifth block. In addition, the division of the block divides 480 scan lines equally into The five 'cannot be limited to this, and can also be set to the division of 1〇〇, 100, 8〇, 1〇〇, 1〇〇'. In addition, the scanning line in the area of the boundary can be repeated. (3) The block memory 15 of the block memory 15 is not as conventionally stored as a video signal during the frame period 131971.doc. 1 c 200919431 'and consists of 3 memories in each memory Store the image of the 1 block. The image signal of the 1-block is stored as an image signal for performing display of each of the above blocks. Further, in the following description, the period in which the image of the 1 block is stored and displayed is referred to as a 1-block period. (4) Display operation in liquid crystal display device Next, the display operation of the controller 14 in the liquid crystal display device will be described using Fig. 1 .

屬於R G B資料之影像信號係暫時蓄積於區塊記憶體丨5。控制器Μ係將蓄積於區塊記憶體15之前一個每—區塊之士；斗讀入且對6亥影像#號進行伽馬修正處理。關於此修正處理係於後說明。再者，依據啟動脈衝（start pluse)，將進行了該修正處理之顯示用之資#，以#1㈣素份傳送至源極驅動器12之位移暫存器24。此外，控制器14係依據啟動脈衝，用以防止逆轉移之黑色影像之資料亦以每i列像素份傳送至位移暫存器Μ。再者，控制器14係對於源極驅動器12之〇/八轉換部η輸衝U〇adpul—D/A轉換部23係於輸入有負載: t時序’將儲存於位移暫存器24之資料同時取 =，且進行D/A轉換並將與各顯示用^ 出至液晶面板H)之信號線。《電【輸 :外，㈣，控制器14係控制從閑極驅動器 Γ〇描線之脈衝狀之閘極錢之輸_序，並且在^ ^ 之各TFT與顯示用資料響應之時序使背光源】1之各 131971.doc -16- 200919431 LED112點燈，而將顯示用資料顯示於液晶面板1〇。 (5)控制器14之構成接著根據圖2說明控制器14中之信號處理之詳細之構成。圖2係為關於控制器14之信號處理之區塊圖。如圖2所示，控制器14係包含灰階分布檢測部川、區塊記憶體控制部32、背光源亮度算出部34、背光源控制部 36、伽馬轉換值算出部38、伽馬轉換部4()、獨立伽馬部42、FRC(Frame Rate —，訊框率控制）處理部仏' 及源極驅動器輸出轉換部46。灰階分布檢測部30係在所輸入之1訊框期間份之繪喊中，根據所輸入之影像信號，將包含於預先區分，料分害Π0個之各階調範圍之像素數進行計數，而產生於各灰階範圍之像素數（像素數料像素之頻率之立對應關係之灰階分布。赌~,, , 背#、挎古n w凋出之灰階分布輸出至旁先源το度异出部34與伽馬轉換值算出部38。區塊記憶體控制部3 2得腺！％ ^ « 區塊記憶體15。將Μ框期間之影像信號記憶於背光源亮度算出部34係為根據從入之灰階分布而算出背光源u之亮度：咖所輸布中較低之am# 彳如，在灰階分此+ 貝半車乂多之情形下’係將.、八芏山夕頻率之灰階範圍之背光源i!之”介者此夕小，且於較高之灰 7…亦即使亮度較通常光源11之亮度較高之方4 ^ 夕之隋形下，係以使背輸出至背光源控制部36:工制。此所算出之背光源亮度係 13I971.doc 200919431 、，背光：控制部36係根據所輸入之背光源亮度而調整背光 '、〜度其調整係使用藉由高速切換發光與非發光之期間而調變亮度之PWM(P*e Width MGdulatiGn，脈衝寬度η控制法。因此，從背光源控制部36，係根據被光 :党度信號產生PWM控制信號，且輸出至背光源"。關於、，原之冗度之調整，除上述之外，亦可為控制電流量本身者。The image signal belonging to the R G B data is temporarily accumulated in the block memory 丨5. The controller system will accumulate a block per block before the block memory 15; the bucket reads in and performs gamma correction on the 6H image #. This correction is described later. Further, according to the start pluse, the display for performing the correction processing is transmitted to the shift register 24 of the source driver 12 in units of #1 (four). In addition, the controller 14 is configured to prevent the data of the black image of the reverse transfer from being transmitted to the shift register 每 per i column of pixels according to the start pulse. Furthermore, the controller 14 is connected to the 〇/eight converter η of the source driver 12, and the U 〇adpul-D/A converter 23 is tied to the input load: t timing 'data to be stored in the shift register 24 At the same time, =, and D/A conversion is performed, and the signal lines for the respective displays are output to the liquid crystal panel H). "Electric [transmission: external, (4), controller 14 controls the pulse-like gate of the trace line from the idler driver, and the backlight is used in the timing of each TFT and display data response. 】 1 each 131971.doc -16- 200919431 LED112 lighting, and the display information is displayed on the LCD panel 1〇. (5) Configuration of Controller 14 Next, the detailed construction of the signal processing in the controller 14 will be described based on Fig. 2 . 2 is a block diagram of signal processing with respect to controller 14. As shown in FIG. 2, the controller 14 includes a gray scale distribution detecting unit, a block memory control unit 32, a backlight luminance calculating unit 34, a backlight control unit 36, a gamma conversion value calculating unit 38, and a gamma conversion. Part 4 (), independent gamma unit 42, FRC (Frame Rate -, frame rate control) processing unit 仏 ' and source driver output conversion unit 46. The grayscale distribution detecting unit 30 counts the number of pixels included in each of the tonal ranges of the predetermined ones, based on the input image signal, based on the input image signal, and counts The number of pixels generated in each gray scale range (the gray scale distribution of the relative relationship of the frequency of the pixels of the pixel number. The gray scale distribution of the gambling ~,,, back #,挎古nw output to the side source το The output unit 34 and the gamma conversion value calculation unit 38. The block memory control unit 3 2 has a gland! % ^ « block memory 15. The video signal during the frame period is stored in the backlight luminance calculation unit 34. Calculate the brightness of the backlight u from the gray-scale distribution of the input: the lower am# in the coffee delivery, for example, in the case of the gray-scale division + the half-car 乂, the system will be. The backlight of the gray scale range of the frequency i!" is small at this time, and at the higher gray 7... even if the brightness is higher than the brightness of the normal light source 11 Back output to backlight control unit 36: system. The calculated backlight brightness is 13I971.doc 200919431, back The control unit 36 adjusts the backlight according to the brightness of the input backlight. The adjustment unit uses a PWM that adjusts the brightness by switching between the high-speed switching and the non-lighting period (P*e Width MGdulatiGn, pulse width η control) Therefore, the backlight control unit 36 generates a PWM control signal based on the light: party signal, and outputs it to the backlight ". The original redundancy is adjusted in addition to the above. Control the amount of current itself.

伽馬轉換值异出部38係從灰階分布與背光源亮度，算出、、行所輸入之影像信號之伽馬值之修正之伽馬轉換值0 馬轉換4 40係根據從區塊記憶體控制部32所輸入之影象，&從伽馬轉換值算出部3 8所輸入之伽馬轉換值而 k:更影像信號之伽馬。例如，若根據灰階分布將背光源" ,X又為較通$小，則壳度相較於原本之灰階亮度會降低。因此’乃將影像信號轉換成為較原本之灰階更明亮之灰階。此轉換係以接近理想伽馬曲線，例如2.2乘方伽馬曲線之方式轉換。獨立伽馬部42係才艮據該變更之伽馬轉換而RGB獨立地分別修正影像信號之伽馬值。此修正係例如㈣型之液晶，有效適用於在以依R、G、B各個進行伽馬設定為較佳之情形。 C(Frame Rate Control ’訊框率控制）處理部44係就各 RGB之影像信料行FRC處理。此剛處理部44係用於例如在1〇位元之輸入影像信號中，使用8位元之源極驅動 13197I.doc -18- 200919431 裔，進仃相當於丨〇位元之灰階顯示之情形等者。源極驅動A'輸出轉換部46係將進行了 FRC處理之Rgb 〜像L號輪出至源極驅動器12。 (6)無閃爍驅動法接著况明本實施形態之液晶面板1〇中之無閃爍驅動法。 rThe gamma conversion value dissipating unit 38 calculates the gamma conversion value of the gamma value of the image signal input from the gray scale distribution and the backlight luminance, and converts the gamma conversion value from the block memory to the block memory. The image input by the control unit 32 & the gamma conversion value input from the gamma conversion value calculation unit 38 and k: the gamma of the further video signal. For example, if the backlight " and X are smaller than the pass size according to the gray scale distribution, the shell degree will be lower than the original gray scale brightness. Therefore, the image signal is converted into a grayscale that is brighter than the original grayscale. This conversion is converted in a manner close to an ideal gamma curve, such as a 2.2 square gamma curve. The independent gamma unit 42 corrects the gamma value of the image signal independently of RGB according to the changed gamma conversion. This correction is, for example, a liquid crystal of the type (IV), and is effectively applied to a case where gamma setting is preferably performed in accordance with each of R, G, and B. The C (Frame Rate Control) processing unit 44 performs FRC processing on each of the RGB video material lines. The processing unit 44 is used for, for example, a 1-bit source driving 13197I.doc -18-200919431, in an input image signal of 1 bit, which is equivalent to a gray scale display of the 丨〇 bit. Situation, etc. The source drive A' output conversion unit 46 rotates the Rgb to L like the LRC to the source driver 12. (6) Flicker-free driving method Next, the flicker-free driving method in the liquid crystal panel 1 of the present embodiment will be described. r

L 號驅動法係在1訊框期間中，由例如將黑影像信〜衫像#號寫入至最初之1/4訊框期間之黑寫入期 I間將影像信號寫入至接下來之1/4訊框期間之影像寫入曰、及將該所寫人之影像信號跨越2/4訊框期間予以保持之影像保持期間依序構成^ ’、者在影像保持期間中使原與各區塊對應之LEDm點燈，而使影像顯示。右為此無閃爍驅動法，即可藉由將黑影像寫入至"“匡期間之最初而防止從彎曲配向朝波浪配向鮮明之影像。此外，由於在影像保持期間使背光源 η點燈，因此在影像不會有引起參差不齊等之情形。 =，所謂「黑影像信號」係為與黑***對應之信號，在…、寫入期間中，由於昔伞 …^ 不點燈，因此不會顯示作外，黑影像信號中之黑色並不限於灰階〇之里色，只要是接近其之灰階（顏色）即可。取代黑影像信號，使用較黑影像信號高之電録之背光源u滅燈，對於對不上係由於使成為灰色防止逆轉移。例如，藉由;=不良影響，而可有效地值對應之非影像信號影隸號更高之電屋更為％短非影像信號之*** 13I971.doc 200919431 率。藉此，即使在容易產生诵去一匆座玍逆轉移之高溫環境下亦可較尚之顯示亮度。另外’此非又付 M ^ ，'像k说之***率亦可據％境溫度而適宜變更之方式構成。 A根 (7)具體之驅動方法接著根據圖4說明圖4液晶顯示裳置之具體之圖4係為用以說明該具體之顯示方法之圖式，表/:。訊框單位之處理之時間之流丁每— 之流程，將"_贈料5:係表不母—訊框期間In the L-frame driving method, the image signal is written to the next in the black writing period I during the first 1/4 frame period by, for example, writing the black image letter to the shirt number #. The image is written during the 1/4 frame, and the image retention period during which the image signal of the written person is held over the 2/4 frame is sequentially configured to be ^', and the original and each are held during the image retention period. The LED corresponding to the block lights up, and the image is displayed. The right is no flicker-driven method, which can prevent the sharp image from being aligned from the curved alignment to the wave by writing the black image to the beginning of the “匡 period. In addition, since the backlight η is lit during image retention Therefore, the image does not cause jaggedness, etc. =, the so-called "black image signal" is a signal corresponding to black insertion, and during the writing period, since the umbrella is not lit, It is not displayed, the black color in the black image signal is not limited to the gray color of the gray scale, as long as it is close to its gray level (color). In place of the black image signal, the backlight u is turned off using a black record with a higher black image signal, and the backlight is grayed out to prevent reverse transfer. For example, by == bad influence, the non-image signal corresponding to the effective value can be effectively inserted into the house with a higher percentage of short non-image signals. 13I971.doc 200919431 rate. Thereby, the brightness can be displayed even in a high-temperature environment where it is easy to generate a hiccup. In addition, this is not the same as M ^ , and the insertion rate like k can be changed according to the temperature of the environment. A. (7) Specific Driving Method Next, the specific description of the liquid crystal display of FIG. 4 will be described with reference to FIG. 4. FIG. 4 is a diagram for explaining the specific display method, Table/:. The flow of time for the processing of the frame unit D - each process, will be "_ gift 5: the table is not the mother - frame period

J間刀割為5個分割期間進行說明L 外，橫軸係表示每—區換此母^塊之k號之流程、及背 LEDU2之點燈（0N)或減先源111之示此。）戈減燈之狀態，在圖付係以「'表圖4中之A係表示影傻作骑 p像乜唬之取入與區塊記憶體15 記憶體151〜153之印愔驴十扣士 τ之各明之背光源亮度算出處理盥乩所忒料算出期間。c係表示与傻^值之Μ處理所使用之資期間。E係表示黑寫入期間。 “象保持 (7-1)弟1區塊The J-cutting is performed for five division periods. The horizontal axis indicates the flow of the k-number of the parent block, and the backlight (0N) or the minus-source 111 of the back LEDU2. The state of the light reduction lamp is shown in the figure "The A system in the picture 4 shows the shadow stupid ride, the p-image capture and the block memory 15 memory 151~153 The backlight luminance calculation processing of each of the τ τ is calculated during the calculation period. c is the period of time used for the processing of the silly value. E is the black writing period. "Image retention (7-1) Brother 1 block

首先說明第1區塊D 在第1訊框期間之第1分割期間中’將在第m塊所顯_ 之影像信號取入，且保存於第1記憶體151。此伴存：Γ 到第3分割期間（參照圖4中之A)。此保存係進行此外’在第1訊框期間之第丨分割期間與第中，將黑寫入作號读石— 口J /月間 «唬迗至與第丨區塊對應之像素而入（參照圖4中之E)。疋订黑寫 131971.doc •20· 200919431 接者，在第】_t 顯示之影像信號，算=之第2分割期間中，從在第】區场 β)。光源冗度與伽馬值（參照圓4中之式進行資料處理之影^二弟3分割期間中，將以上述之方素係寫入至屬於第;區::5虎寫入至各像素。此所寫入之像 C)。 °之範圍之各像素（參照圖4中之接著，在第1訊框期„ + # 式所寫入之影像信號分㈣心’將以上述之方光源！11之LED112點庐^保持，且使與第1區塊對應之背最後，在第I訊框：間：：示圖像(參照圖4中之D)。送至與第1區塊對庫去5分割期間令’將黑寫入信號 Ε)。 ‘…象素而進行黑寫入(參照圖4中之接著，在第1訊框期間顯示之影像信號，算出 ”割期間中’從在第1區塊 Β)。 “光源亮度與伽馬值(參照圖4中之接著，在第1訊框期間之式進行資料處理之影像作號刀D’期間中’將以上述之方素係寫入至屬於第！區塊之：入至各像素。此所寫入之像 C)。鬼之耗圍之各像素（參照圖4中之接著，在第1訊框期間之第式所寫入之影像信號予以保持，^間中’將以上述之方光源111之LED112點燈，而Ss、且使與第1區塊對應之背最後，在第以框期間Π圖像（參照圖4中之D)。之第5分割期間中，使與糾區塊 131971.d0, -21 · 200919431 對應之背光源111之Led 11 〇 β I·» 〈LtDll2滅燈，再度進 1區塊對應之像素（參照圖4中之E)。〃、、’”、至與第 (7-2)第2區塊接著說明第2區塊。第2區塊係較第丨區塊塊同樣之處理。遲第1刀割期間份而進行與第！區亦即，在第1訊框期間之第2 存於第2記憶體152(參照圖4中之a°):S ，字影像信號儲此外，在從第！訊框期間之第！分中，將黑寫入信號送至盘第2F祕μ &】第3刀割期間 (也〇第2 Q塊對應之像素而進杆里皆入（參照圖4中之E)。丁…、寫同樣地進行資料處理將影像信號寫Α至第保持所寫入之影像，在第1訊框期間之第3分割期間中 (參照圖4中之B )。在第1訊框期間之第4分割期間中 2區塊之像素（參照圖4中之c)。在第1訊框期間之第5分割期間中 . 且使與第2區塊對應之背光源lu之led’;;：： (7-3)第3〜5區塊接者在第3區塊中，亦較第2 行同樣之處理。惟此情开，保力 ^間而進體153。 W呆存之記憶體係儲存於第3記憶接著，在第4區塊中，亦軔楚，广二行同枵夕♦ 軟弟3區塊延遲1分割期間而進仃丨J樣之處理。惟此幢形淮此障形儲存與第4區塊對應之影像之記憶體，係儲在於M , i m 1β ^ 係储存於弟1記憶體⑸。亦即，第4區塊中錯 131971.doc •22· 200919431 存影像信號之期間係為第】此在第1區塊令館存於第！記憶體間中之第4分割期間，因料處理而寫入而在第〗區塊中：51之影像信號已進行資之影像信號。 $要’因此儲存第4區塊接著’在第5區換中，仿行同樣之處理。惟此情形:存割期間而進了資料處理，儲一=塊之右進行以上之驅動方法，則石$ + 1訊框期間之影像信號之_記；之方式儲存各區塊中之影像信號之記憶體可、準備3個儲存容量。而了大幅減低記憶體此外，由於在1訊框期間中分 ^ , j兩3個區塊，且依各區塊進仃無閃爍驅動法，因此不會合尾致閃爍現象等之情形。亦即之“所導主,n 由於在1讯框期間中顯示之衫像k號與背光源之亮度—致 ^ 又致’因此不會有顯示因為背光 (第2實施形態）敎“之-像之情形。接著，根據圖5及圖6說明第2液晶顯示裝置。 (1)與第1實施形態之相異點 μ再者，在第1區塊中，從第1分割期間到第3分割期間為寫入影像信號，而第4分割期間以後係設為影像保持期間0 接著，在第2區塊中’同樣地從第2分割期間到第4分割 131971.doc -23 - 期間為止寫入影像信號，而第5分持期間。 '^割期間以後設為影像保接著，在第3區塊中，從第3八* 止寫入影像信號，巾第6分割期了、期間到第5分割期間為後係設為影像保持期接著，在第4區塊中’從第止寫入影像信號，且將第7分 /間到第6分割期間為間。 ]以後设為影像保持期接著，在第5區塊中，從第5分止寫入影像信號，且將第8分割期間以c彳期間為間。後a又為景Μ象保持期最後’使前述之背光源11，在第8分割期到此訊框期間結束。間。間以後，點燈 (3)效果藉此’即可使背光源u在第8分割期間以後點背光源亮度明亮。使此外，與第1實施形態同樣地可削減記憶體容量。此外，不會有顯示因為背光源亮度而參差不齊或亮度變化延遲之異常之影像之情形。 & (第3實施形態）茲根據圖7及圖8說明本發明之第3實施形態之液晶顯示裝置。不 (1)與第1實施形態之比較在第1實施形態之液晶顯示裝置中，係依每—區塊決定 131971.doc -24- 200919431 LED 112之焭度、與伽馬值。在此種背光源丨丨之亮度之控制方法中，於亮度之差在相鄰接之區塊變大之情形下，會有在相鄰接之區塊之邊界中見到條紋之情形。因此，在第3實施形態之液晶顯示裝置中，乃以在相鄰接之區塊間之邊界中不產生條紋之方式提供背光源丨丨之亮度之控制方法。 (2 )免度調整之概念兹根據圖7 —面比較第1實施形態之控制方法一面說明第 2實施形態之亮度之控制方法。圖70)係為表示1訊框期間中之影像信號之輸入之狀態者’縱軸為線之位置，而橫軸為時間轴。圖7(b)係為第丨實施形態之亮度之調整方法，依$個區塊决疋各焭度。然而，若為此種每一區塊之亮度之控制方法’則如上述所示區塊間之亮度差會變大，例如在圖7(b) 中，第1區塊與第2區塊之間之亮度差變大，而會有在液晶面板10中之第1區塊與第2區塊之邊界部分見到條紋之情形。圖7(c)係表示本實施形態中之每一區塊之亮度。茲著眼於第2區塊說明，若在第1實施形態之計算方法中叶算第2區塊之亮度，則成為如圖7(b)之值所示。然而，若為此種值，則與第丨區塊之亮度之差會變大，因此會有見到條紋之情形。因此，在本實施形態中，乃以此第1區塊之亮度為中心而在±1〇%之範圍内以加入第2區First, the first block D is taken in the first divided period of the first frame period, and the video signal displayed in the mth block is taken in and stored in the first memory 151. This is accompanied by: 到 to the third division period (refer to A in Fig. 4). This save is performed in addition to the first segmentation period and the middle of the first frame period, and the black is written as the number reading stone - the mouth J / month «唬迗 to the pixel corresponding to the third block (refer to E) in Figure 4.疋定黑写 131971.doc •20· 200919431 Receiver, in the image signal displayed in the first _t, in the second division period of =, from the [region] field β). Light source redundancy and gamma value (refer to the figure in the circle 4 for the data processing ^ two brothers 3 division period, the above-mentioned squares will be written to belong to the first; area:: 5 tiger write to each pixel This is written like C). Each pixel in the range of ° (refer to FIG. 4, in the first frame period, the image signal (4) heart written in the + # formula will be held by the LED 112 of the above-mentioned square light source! 11 and Let the back corresponding to the first block be the last, in the first frame::: display image (refer to D in Fig. 4). Send to the first block to the library to divide the 5 segmentation period to 'write black The input signal Ε). '...the pixel is black-written (refer to the image signal displayed during the first frame in Fig. 4, and the "cutting period" is calculated from the first block Β). "Light source brightness and gamma value (refer to Fig. 4, in the period during the first frame period, during the image processing of the image processing tool D', the above-mentioned squares will be written to belong to the first! Block: into each pixel. This is written as image C). Each pixel of the ghost's consumption (refer to Figure 4, the image signal written in the first mode during the first frame is maintained, In the middle, 'the LED 112 of the above-mentioned square light source 111 is turned on, and Ss, and the back corresponding to the first block is finally, and the image is scanned during the first frame (refer to D in FIG. 4). In the five-divided period, Led 11 〇β I·» <LtDll2 of the backlight 111 corresponding to the correction block 131971.d0, -21 · 200919431 is turned off, and the pixel corresponding to the block is again input (refer to FIG. 4). E). 〃,, ',, and (7-2) Block 2 will be followed by the second block. The second block is treated the same as the block of the third block. In the first and second regions of the first frame, the second memory 152 (see a° in FIG. 4): S, the word image signal is stored, and during the second frame period. In the first!, the black write signal is sent to the 2Fth part of the disc. The third cutting period (also the pixel corresponding to the 2nd Q block is entered into the rod (refer to E in Fig. 4) D... The same data processing is performed to write the video signal to the image to be written, in the third segmentation period of the first frame period (refer to B in Fig. 4). a pixel of two blocks in the fourth division period of the period (refer to c in FIG. 4). In the fifth division period of the first frame period, the LED of the backlight lu corresponding to the second block is led; ;:: (7-3) Blocks 3~5 are in the third block and are treated the same as in the second block. However, the situation is open, and the force is between 153 and W. The memory system is stored in the third memory. Then, in the fourth block, it is also awkward, and the second line of the same line is the same as that of the case. The memory of the image corresponding to the image of the block 4 is stored in M, im 1β ^ is stored in the memory of the brother 1 (5), that is, the error in the 4th block is 131971.doc •22· 200919431 Image signal period This is the first]. During the fourth division of the first block embassy in the memory of the first memory, it is written by the material processing and is in the first block: the image signal of 51 has been imaged. $) 'Thus store the 4th block and then 'change in the 5th district, the same process is the same. Only in this case: the data processing is carried out during the deposit, and the storage method is performed on the right side of the block. Then, the image signal of the stone during the $+1 frame is recorded; the memory of the image signal in each block is stored, and three storage capacities are prepared. In addition, the memory is greatly reduced. In addition, since there are two blocks in the frame period of ^, j, and the block-free driving method is adopted according to each block, the flicker phenomenon or the like is not caused. That is to say, "the main guide, n because the shirt displayed in the period of the 1 frame is like the k number and the brightness of the backlight - so that it will not be displayed because of the backlight (second embodiment) 敎" - Like the situation. Next, a second liquid crystal display device will be described with reference to FIGS. 5 and 6. (1) In contrast to the first embodiment, in the first block, the video signal is written from the first divided period to the third divided period, and the image is held after the fourth divided period. Period 0 Next, in the second block, the video signal is written in the same manner from the second division period to the fourth division 131971.doc -23 -, and the fifth division period is performed. In the third block, the video signal is written from the third block, and the sixth segmentation period is reached, and the period from the period to the fifth segmentation period is set to the image retention period. Next, in the fourth block, the video signal is written from the first block, and the seventh/inter-to-sixth segment is interposed. The image holding period is set to be the next. Next, in the fifth block, the video signal is written from the fifth division, and the eighth division period is interposed between the c彳 periods. The latter a is again the scene retention period. Finally, the aforementioned backlight 11 is terminated during the eighth segmentation period to the frame. between. After that, the lighting (3) effect is used to make the backlight u brighter after the eighth division period. Further, similarly to the first embodiment, the memory capacity can be reduced. In addition, there is no case where an abnormal image is displayed which is uneven due to the brightness of the backlight or delayed in brightness variation. <Third Embodiment> A liquid crystal display device according to a third embodiment of the present invention will be described with reference to Figs. 7 and 8 . (1) Comparison with the first embodiment In the liquid crystal display device of the first embodiment, the degree of turbulence and the gamma value of the LED 112 are determined in accordance with the block number of 131971.doc -24 - 200919431. In the method of controlling the brightness of such a backlight, in the case where the difference in luminance becomes larger in the adjacent block, there is a case where streaks are seen in the boundary of the adjacent block. Therefore, in the liquid crystal display device of the third embodiment, the method of controlling the brightness of the backlight 提供 is provided so that no streaks are generated in the boundary between adjacent blocks. (2) Concept of degree of freedom adjustment The method of controlling the brightness of the second embodiment will be described with reference to Fig. 7 in comparison with the control method of the first embodiment. Fig. 70) shows the state of the input of the image signal in the 1-frame period. The vertical axis is the position of the line, and the horizontal axis is the time axis. Fig. 7(b) is a method for adjusting the brightness of the third embodiment, and the respective degrees are determined by the number of blocks. However, if the method of controlling the brightness of each block is as described above, the difference in luminance between the blocks becomes larger, for example, in FIG. 7(b), the first block and the second block are The difference in luminance between the two blocks becomes large, and there is a case where streaks are seen in the boundary portion between the first block and the second block in the liquid crystal panel 10. Fig. 7(c) shows the luminance of each block in the present embodiment. In view of the description of the second block, in the calculation method of the first embodiment, the brightness of the second block is calculated as shown in Fig. 7(b). However, if this value is used, the difference from the brightness of the third block will become larger, so that streaks will be observed. Therefore, in the present embodiment, the second region is added within the range of ±1〇% centering on the luminance of the first block.

士 u〜冗! I 方式進行修正。 -25· 200919431 藉由如此方式，相鄰接之區塊間之亮度之差即變小，且不會有在上述之區塊間產生條紋之情形。 (3)本實施形態之控制方法接著’根據圖8說明本實施形態之背光源丨丨之亮度之控制方法。在步驟1中，輸入第（k-i)區塊之亮度◦此亮度卩“係使用在前一個區塊中所計算者。在步驟2中計算第k區塊之亮度pk。此計算方法係與第1 實施形態同樣。在步驟3中，比較第k區塊之亮度Pk、與第區塊之亮度Pk-〗之90°/。之值’若第k區塊之亮度匕較〇9><亮度pw大則前進至步驟4，若較小則前進至步驟5。在步驟4中’由於第k區塊之亮度Pk較前一個區塊之亮度 Pk_1之90°/〇更小，因此修正為第（k-Ι)區塊之亮度Pw之90% 之亮度而點燈。使用此經修正之亮度來修正伽馬值。再者，前進至步驟8。在v驟5中’比較弟（k-1)區塊之亮度Pk-1之π 〇%之值與第k區塊之亮度pk_i，若第k區塊之亮度Pk較MxPk」小，則前進至步驟6，若較大則前進至步驟7。在步驟6中’第k區塊之亮度Pk係在第（k-Ι)區塊之亮度 Pk-1之土1〇%之範圍内，因此以第k區塊之亮度Pk點燈。使用此焭度來修正伽馬值。再者，前進至步驟8。在步驟7中’由於第k區塊之亮度Pk較第（k-Ι)區塊之亮度 Pk_1之11〇%大’因此修正為第（k-Ι)區塊之亮度Pw之110% 131971.doc -26- 200919431 之亮度而點燈。使用此經修正之亮度來修正伽馬值。再者，前進至步驟8。在步驟8中’判斷是否為卜5,亦即，若到最後區塊未結束，則前進至步驟9。若結束則前進至步驟1〇。在步驟9中，設為k=k+1而返回步驟j。在步驟10中’前進至下-個訊框，且在步驟U十設為㈣而返回步驟卜另外，在前進至下—個訊框之情形下，以师中之第㈤)區塊之亮度Pk·,而言，係使用前一個訊框之最後區塊之亮度。 (4) 亮度由於如上所述設為與前-㈣塊之亮度比車交，而使下— 個區塊之亮度落在該輝度之±1〇%以内，因此不會有在相鄰接之區塊間產生條紋之情形。 (5) 變更例在上述實施形態中雖係設定為前一個區塊之亮产之 1士 u~ redundant! I way to correct. -25· 200919431 In this way, the difference in luminance between adjacent blocks is reduced, and there is no possibility of streaking between the above blocks. (3) Control method of the present embodiment Next, a method of controlling the brightness of the backlight unit according to the present embodiment will be described with reference to Fig. 8 . In step 1, the brightness of the (ki)th block is input, and the brightness is "used in the previous block. The brightness of the kth block is calculated in step 2. This calculation method is the same as 1 In the same embodiment, in step 3, the brightness Pk of the kth block and the value of the luminance of the block Pk- is 90°/. If the brightness of the kth block is smaller than &9> If the brightness pw is large, the process proceeds to step 4. If it is small, the process proceeds to step 5. In step 4, since the brightness Pk of the kth block is smaller than 90°/〇 of the brightness Pk_1 of the previous block, it is corrected to The brightness of the (k-Ι) block is 90% of the brightness of the Pw. The corrected gamma is used to correct the gamma value. Further, proceed to step 8. In v5, 'Comparative brother (k -1) The value of the luminance of the block Pk-1 π 〇% and the luminance pk_i of the kth block, if the luminance Pk of the kth block is smaller than MxPk", proceed to step 6, if it is larger, proceed to Step 7. In step 6, the luminance Pk of the kth block is within 1% of the luminance Pk-1 of the (k-th) block, and therefore the luminance Pk of the kth block is lit. Use this twist to correct the gamma value. Furthermore, proceed to step 8. In step 7, 'because the luminance Pk of the kth block is larger than 11〇% of the luminance Pk_1 of the (k-Ι) block', it is corrected to 110% of the luminance Pw of the (k-Ι) block 131971. The brightness of doc -26- 200919431 lights up. Use this corrected brightness to correct the gamma value. Furthermore, proceed to step 8. In step 8, it is judged whether or not it is 5, that is, if the last block is not completed, the process proceeds to step 9. If it is over, proceed to step 1〇. In step 9, it is assumed that k=k+1 and the process returns to step j. In step 10, 'go to the next frame, and set to (4) in step U to return to step. In addition, in the case of advancing to the next frame, the brightness of the block (5) in the division. In Pk, for example, the brightness of the last block of the previous frame is used. (4) Since the brightness is set to be the same as the brightness of the front-(four) block as described above, the brightness of the next block falls within ±1〇% of the luminance, so there is no adjacent connection. Streaks between blocks. (5) Modified example In the above embodiment, it is set as the brightest one of the previous block.

J ㈣％，㈣而代之，只要不會看到相鄰接之區塊=邊界之條紋，則非為±10%之值，而亦可為較其更大之值，或是較小之值。 (第4實施形態）接著根據圖9說明第4實施形態。在第3實施形態中，為使不會看到相鄰接之區塊間之邊界之條紋’乃以前-個區塊之亮度為基準進行判斷:惟在本實施形態中’係以目前訊框之前—個訊框 τ <母一區塊之亮度之平均值為基準。 131971.doc •27- 200919431 圖9(a)係為表示每m框之影像信號之輸入與線位置者。轉:係為表示在第!實施形態所說明之每一訊框之亮度之狀怨者。若為此狀態則如在第2實施形態所說明，會有在相鄰接之區塊間於邊界產生條紋之情形。因此’如圖9(c)所示，求八出在月光源売度鼻出部所鼻出之前一個訊框之每一區尼之儿度（以下在本實施形態中稱亮度候補」）之平均值。再者，以下一個訊框之每 -區塊之梵度落在此亮度候補之平均值之士1〇%以内之方式，將在背光源亮度算出部34所算出之下一個訊框之每— 區塊之亮度候補進行修正’且以此經修正之亮度點燈。 /由如此控制，即不會有產生區塊間之邊界之條紋之情形0 另外’並不限於全訊框之每一區塊之亮度之平均值之聰，只要在相鄰接之區塊間之邊界不會看到條亦可為較±10%更大之值，或更小之值。、 (變更例）本發明係不限於上述各實施形態，只要不脫離其主可作各種變更。 (1) 變更例1 在上述各實施形態中雖係將在橫方向延伸之區域分成$ 個區塊進行了說明’惟分成2個以上區塊亦可，或亦可分成1 〇區塊以上例如1 5或20區塊。 n (2) 變更例2 在上述實施形態中，雖係說明了〇CB型之液晶顯示骏 131971.doc -28- 200919431 置’惟本實施形態在TN(TWiSted Nematic 扭轉向列）型、 VA(Vertical Alignment ’ 垂直排列、刑 τ c . , IPS(In PlaneJ (4)%, (4) Instead, as long as you do not see the adjacent block = boundary stripe, it is not a value of ±10%, but may be a larger value, or smaller value. (Fourth Embodiment) Next, a fourth embodiment will be described with reference to Fig. 9 . In the third embodiment, the determination is made so as not to see the fringe of the boundary between adjacent blocks, which is based on the brightness of the previous block: in the present embodiment, the current frame is used. The average of the brightness of the previous frame τ < mother block is the reference. 131971.doc •27- 200919431 Figure 9(a) shows the input and line position of the image signal per m frame. Turn: is a blame for the brightness of each frame described in the ! embodiment. If this is the case, as described in the second embodiment, streaks may occur at the boundary between adjacent blocks. Therefore, as shown in Fig. 9(c), it is determined that each of the frames of the frame before the nose of the moonlight source is out of the nose (hereinafter referred to as the brightness candidate in the present embodiment). average value. Furthermore, the Brahman of each block of the following frame falls within the range of less than 1% of the average of the luminance candidates, and each of the next frames is calculated by the backlight luminance calculation unit 34. The brightness candidate of the block is corrected 'and the corrected brightness is turned on. / Controlled by this, that is, there will be no occurrence of streaks between the boundaries of the blocks. 0 is not limited to the average of the brightness of each block of the frame, as long as it is between adjacent blocks. The boundary will not see that the bar can be a value greater than ±10%, or a smaller value. (Modifications) The present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the invention. (1) Modification 1 In the above embodiments, the area extending in the lateral direction is divided into two blocks. However, it may be divided into two or more blocks, or may be divided into one or more blocks. 1 5 or 20 blocks. n (2) Modification 2 In the above embodiment, the 〇CB type liquid crystal display is shown in the figure 131971.doc -28- 200919431. However, the present embodiment is in the TN (TWiSted Nematic) type, VA ( Vertical Alignment ' vertical alignment, punishment τ c . , IPS (In Plane

Switch，平面切換）型、強電介質型、一、土次夂強電介質型等之液晶顯示裝置中亦可適用。再者，以此等液晶之響應速度而言、 σ 你例如在進行5m 矛> 以下者，尤其非影像信號寫入丨月❿卜’係以OCB型之液晶為較佳》 (3)變更例3 在上述第1、2之實施形態中，雖係從上 ~ <母一區塊依序進仃無閃爍驅動，惟不以此為低卜從區塊依序，【圖式簡單說明】而且，依每一區塊隨機進行無閃爍驅動圖1係為第1實施形態之液晶顯示裝置之區塊圖。圖2係為控制器（contr〇i丨er)之區塊圖。圖圖3係為背光源之說明圖，⑷係為俯視圖，⑻係為側視圖4係為表示在m框單位中之處理之流程之時序圖。圖5係為第2實施形態之背光源之說明圖，(b)係為側視圖。 ⑷係為俯視圖6係為表示在m框單位中之處理之流程之時序圖。古，7=〜⑷係為表示第3實施形態之1訊框中之各區塊之冗度之變化之說明圖。圖8係為第3實施形態之亮度之㈣方法之^ 。圖9(a)〜（c)係為表示第4實施形態之各訊框之每—區塊之 131971.doc -29- 200919431A liquid crystal display device such as a Switch, a planar switching type, a ferroelectric type, a soil type, a bare dielectric type, or the like can be applied. Furthermore, in terms of the response speed of the liquid crystal, for example, σ, for example, 5 m spears, etc., especially non-image signals are written in the 丨 ❿ ' ” ” ” ” ” ” ” ” Example 3 In the above-mentioned first and second embodiments, although the flicker-free driving is performed from the upper to the <parent block, the lower block is sequentially used as the low block, and the figure is simply described. Further, the flicker-free driving is performed randomly for each block. Fig. 1 is a block diagram of the liquid crystal display device of the first embodiment. Figure 2 is a block diagram of the controller (contr〇i丨er). Fig. 3 is an explanatory diagram of a backlight, (4) is a plan view, and (8) is a side view. Fig. 4 is a timing chart showing a flow of processing in an m frame unit. Fig. 5 is an explanatory view of a backlight of the second embodiment, and Fig. 5 is a side view. (4) is a plan view. Fig. 6 is a timing chart showing the flow of processing in the m-frame unit. In the case of the seventh embodiment, the description of the change in the redundancy of each block in the first frame of the third embodiment is shown. Fig. 8 is a view showing the method of the fourth embodiment of the brightness of the third embodiment. Figures 9(a) to 9(c) show each block of each frame in the fourth embodiment. 131971.doc -29- 200919431

亮度之值之說明圖。【主要元件符號說明】 10 液晶面板 11 背光源 12 源極驅動器 13 閘極驅動器 14 控制器 15 區塊記憶體 16 輸入電源 17 液晶驅動電壓產生電路 23 D/A轉換部 24 位移暫存器 30 灰階分布檢測部 32 區塊記憶體控制部 34 背光源亮度算出部 36 背光源控制部 38 伽馬轉換值算出部 40 伽馬轉換部 42 RGB獨立伽馬部 44 FRC處理部 46 源極驅動器輸出轉換部 111 導光板、背光源 111a〜llle 第1區塊〜第5區塊 112 LED 131971.doc -30- 200919431 151 第1記憶體 152 第2記憶體 153 第3記憶體 A 記憶體之保存期間 B 資料算出期間 C 影像寫入期間 D 影像保持期間 E 黑寫入期間 Pk ' Pk-i 亮度An illustration of the value of the brightness. [Main component symbol description] 10 LCD panel 11 Backlight 12 Source driver 13 Gate driver 14 Controller 15 Block memory 16 Input power supply 17 Liquid crystal drive voltage generating circuit 23 D/A converter 24 Displacement register 30 Gray Step distribution detecting unit 32 Block memory control unit 34 Backlight luminance calculation unit 36 Backlight control unit 38 Gamma conversion value calculation unit 40 Gamma conversion unit 42 RGB independent gamma unit 44 FRC processing unit 46 Source driver output conversion Portion 111 Light guide plate, backlight 111a to 11l Block 1 to block 5 LED 131971.doc -30- 200919431 151 1st memory 152 2nd memory 153 3rd memory A Memory period B Data calculation period C Image writing period D Image holding period E Black writing period Pk ' Pk-i Brightness

131971.doc -31 -131971.doc -31 -

Claims

200919431 、申請專利範圍·· '—種液晶顯示裝置，其包含：液日日面板，其係於顯示區域中，八.^ 炉士 a 匕坟中包含.爪條信號線，在縱方向延伸；η條掃描線，其 ^ ^ 八隹杈方向延伸；及複數個像素，其配置成矩陣狀；背光源，其用以照明前述液晶面板；源極驅動器’其用以將影二n 〜像仏唬與非影像信號輸出至月1J述各信號線；閘極驅動器，其用以將Μ 綠. J Μ閘極#號輸出至前述各掃描、深，第1控制部，其控制以構成為义、战马將别述非影像信號寫入至前述各像素之非影像作铗宜虎寫入期間、將前述影像信號寫入至前述各像素之影像寫入期間、將寫入至前述各像素，前述影像信號予以保持之影像保持期間之順序；及苐2控制部，其用以控制前 “ 让市』則迷方先源之點滅燈；前述顯示區域係分割為從Α纟生丁刀。J马從在橫方向延伸之第丨區塊到第L區塊（其中i<L<n); 2. 前述第2控制部係在每-前述區塊，而且，在前述各區塊之前述影像保持期間中，使前述背光源點燈。一種液晶顯示裝置，其包含：液晶面板，其係於顯示區域中包含：m條信號線’在縱方向延伸；η條掃描線，直力供七a ^ 在&方向延伸；及複數個像素’其配置成矩陣狀；背光源，其用以照明前述液晶面板； 131971.doc 200919431 源極驅動器，1用 '、 ♦影像信號盘# % / 前述各信號線；非衫像信號輸出至問極驅“ Hx㈣極線；至前述各掃描第1控制部，其控制以構成為至前述各像素之非影像”寫人_ 號寫入寫入至前述各像素之影 f則迷影像信號素之前述影像信號予以彳肘冩入至則述各像第2控制部，其用以^ ㈣持期間之順序；及具用以控制前述背光源之前述顯示區域係分割為從在橫方向延伸第L·區塊（其中l<L<n) ; 甲之弟1區塊到前述第】控制部係依每一前述區塊控制影像信號寫人期間、前心彡像胃^述非期間之順序。則述影像保持 3. 一種液晶顯示裝置，其包含. 液晶面板’其係於顯示區域中包含：m條信號線，在縱方向延伸；n條掃描線，其在橫方向狂彳由·、、— 像素，其配置成矩陣狀丨，及稷數個背光源，其用以照明前述液晶面板；、，源極驅動器’其用以將影像信號與非影像信號輸出至前述各信號線；線；閘極驅動器’其用以將閑極信號輸出至前述各掃描第1控㈣’其控制以構成為在1訊樞期間將前述非, 131971.doc 200919431 像"ί§波寫人$於、4·、々a ’八至則述各像素之非影像信述影像信號寫^ i n & i 寫入期間、將前 …夂則述各像素之影像寫入期間、將京之順序：及“像信號予以保持之影像保持期間 =部’其用以控制前述背光源之點滅燈；則述顯示區域係分割為從在橫方向第L區塊（其_1<L<n); 苐1區塊到前述第1控制部係間⑴:::：述區塊控制以成為前述非影像信號寫入期衫像寫人期間、前述影像保持期間之順序. ==〈⑽娜^間” 鬼之則述影像寫入期間延遲特定時間。 4.如請求項3之液晶顯示裝置，其中 f述背光源係依每一前述區塊包含光源；引述第2控制部係僅在每_前述區塊之各個前述影保持期間使前述各光、’ 各先源'沾燈，且在其以外之期間滅燈。 5·如巧求項3之液晶顯示裝置，其中月'J述1訊框期間係包含影像寫入期間及前述背光源之點燈期間；《疋原之义、:述第1控制部係在從前述第i區塊到前述第l區塊之 =述L號寫入期間’寫入前述非影像信號及前述影像信乂則述第2控制部係在前述點燈期間内與前述第L區塊之月，】迷影像保持期間之開始同時，使前述顯示區域之前述 131971.doc 200919431 光源點燈’且在與前述1訊框期間之結束同時使前述光源滅燈。 6. Γ 一種液晶顯示裝置，其包含. 液sa面板其係於顯示區域中包含：m條信號線，在縱方向延伸；η條掃描線，其在橫方向延伸；及複數個像素，其配置成矩陣狀；背光源，其用以照明前述液晶面板；源極驅動器’其用以將影像信號與非影像信號輸出至前述各信號線；閘極驅動器’其用以將脈衝狀之閘極信號輪出至前述各掃描線；第1控制部’其控制以爐忐么膝a 構成為將則述非影像信號寫入至前料像素之非影㈣號以期間、將前述影像信號寫入；前述各像素之影像寫人期間、將寫入至前述各像素之前述影像錢予以保持之影像保持期間之；及第2控制部，其用以控制前述背光源之點滅燈、；，前述顯示區域係分割為從在橫方第L區塊(其中KL<n); U申之釣區塊到前述背光源係依每一前述區塊包含光源；前述第1控制部係 ⑴依每-前述區塊控制以成為前述非影間、前述影像寫入期間、前述影像保持期間之/“、入/ (2)控制使第k區塊（惟1<k^L)i前述影丨員序，第（[1)區4之前述影像寫入期間延遲特定時^入期間車父 131971.doc 200919431 則述第2控制部係（1)將前述第k區塊之前述光源之亮度’修正為前述第（k-Ι)區塊之前述光源之亮度之特定之範圍内’（2)僅在每一前述區塊之各個前述影像保持期間以前述經修正之亮度使前述各光源點燈，且在其以外之期間滅燈。如請求項6之液晶顯示裝置，其中月述第2控制部係將前述第k區塊之前述光源之亮度，修正為前述第（k-Ι)區塊之前述光源之亮度之±1〇%範圍内。 8. 晶顯示裝置，其包含：種液夜b曰面板，其係於顯示區域中包含：爪條信號線，在 ==伸；η條掃描線，其在橫方向延伸；及複數個像素，其配置成矩陣狀；背光源’其用以照明前述液晶面板；前==:其用―號與非影像信編至各：:動器’其一脈衝狀―至前述第1控制部，其在2訊框非影像信號寫人至心 =以構成為將前述將前述影像信號寫入至前述各二影像信號寫入期間、寫入至前述各料之前述⑨ 彡像“期間、將期間之順U 衫像^號予以保持之影像保持第2控制部，其制别述背光源之點滅燈； i3197J.doc 200919431 第L區塊（其中1 <[<η); 則述背光源係依每一前述區塊包含光源· 前述第1控制部係依每一前述區塊㈣以成為前述非衫像“虎寫入期間、前述影像寫入期間期間之順序；〜像保持前述第2控制部係⑴依每_訊框期間根號算出前述各光源之亮度；⑺將目前訊框像信光源之前述亮度’修正為較前述目前訊框：迷各訊框期間中之前述各光源之亮度之平均值之面^ 内；（3)僅在每一前述區塊之各個前述影像 ^園述經修正之亮度使前述各光源點燈，且夕間以前滅燈。外之期間 9.如請求項^+…中任一項之液晶顯示裝置 U 包含用以儲存每—前述區塊之影像信號之^=中 1<S<L)區塊記憶體；（·<、中且將儲存於前述區塊記憶體之前述影像信號述第1控制部。 &出至前 10·如：求項卜^^中任-項之液晶顯示袭置，月’J述非影像信號係為與黑顯示對應之信號。、中 U·如請求項卜2、3、6、8中任一項之液晶顯:裝置則述液晶面板係為〇CB型之液晶。其中 I31971.doc200919431, the scope of application for patents ··---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- η scanning lines extending in the direction of the ^; and a plurality of pixels arranged in a matrix; a backlight for illuminating the liquid crystal panel; and a source driver for arranging the image The 唬 and non-image signals are output to the signal lines of the month 1J; the gate driver is used to output the Μ Green. J Μ Gate ## to each of the above-mentioned scans and depths, and the first control unit is controlled to constitute a meaning The war horse writes the non-image signal to the non-image of each of the pixels to write the image during the image writing period of each pixel, and writes the image signal to the respective pixels. The order in which the image signal is held during the image retention period; and the 苐2 control unit, which is used to control the front point of the "letting the city" to be the source of the fan; the display area is divided into the knives from the twins. in a direction extending from the third block to the Lth block (where i<L<n); 2. The second control unit is in each of the blocks, and in the image holding period of each of the blocks described above, The liquid crystal display device comprises: a liquid crystal panel, wherein the display area includes: m signal lines 'extending in the longitudinal direction; n scanning lines, straight force for seven a ^ in & Direction extension; and a plurality of pixels 'which are arranged in a matrix shape; a backlight for illuminating the liquid crystal panel; 131971.doc 200919431 source driver, 1 with ', ♦ image signal disk #% / each of the aforementioned signal lines; The shirt image signal is output to the Hx (four) pole line; and the first control unit for each of the scans is controlled so as to be written to the non-image "writer" of each pixel to write to the shadow of the pixel. And the image signal of the image signal is inserted into the second control unit for the duration of the holding period; and the display area for controlling the backlight is divided into In the horizontal To extend the L-th block (where l<L<n); the first block of the brother-in-law to the above-mentioned first control unit, according to each of the aforementioned blocks, control the image signal during the writing period, and the front heart is like the stomach The sequence of the period. The image holding device 3. A liquid crystal display device comprising: a liquid crystal panel comprising: m signal lines extending in the longitudinal direction; n scanning lines, which are arrogant in the horizontal direction a pixel, which is arranged in a matrix, and a plurality of backlights for illuminating the liquid crystal panel; and a source driver for outputting image signals and non-image signals to the aforementioned signals a line driver; a gate driver for outputting a idler signal to each of the aforementioned scans (1) (four)' of its control to be configured to write the aforementioned non during the 1 pivot, 131971.doc 200919431 like " Persons $, 4·, 々a '8 to the non-image information image signals of each pixel are written ^ in & i during the writing period, before... 夂夂夂影像影像影像影像影像、、 Sequence: and "image retention like signal retention Period=section' is used to control the backlight of the aforementioned backlight; the display area is divided into the L-block from the horizontal direction (its _1 <L<n); 苐1 block to the first control Inter-system (1):::: The block control is to be the order in which the non-image signal is written during the period of writing the shirt, and during the image holding period. == <(10) Na ^ between the ghosts Delayed for a specific time. 4. The liquid crystal display device of claim 3, wherein the backlight comprises a light source for each of the blocks; and the second control unit causes the light to be emitted only during each of the shadow holding periods of each of the blocks. 'Each source' dims the light and turns off the light during the period other than it. 5. The liquid crystal display device according to item 3, wherein the period of the month of the frame includes a period during which the image is written and a period of lighting of the backlight; "the meaning of the original: the first control unit is The second control unit is in the lighting period and the L-th zone from the ith block to the first block in the L-number writing period. At the same time as the beginning of the image holding period, the aforementioned 131971.doc 200919431 light source is turned on and the light source is turned off at the same time as the end of the first frame period. 6. A liquid crystal display device comprising: a liquid sa panel attached to the display area comprising: m signal lines extending in a longitudinal direction; n scanning lines extending in a lateral direction; and a plurality of pixels, the configuration Forming a matrix; a backlight for illuminating the liquid crystal panel; a source driver for outputting image signals and non-image signals to the aforementioned signal lines; and a gate driver for pulsing the gate signals Rotating to the respective scanning lines; the first control unit's control is configured such that the non-image signal is written to the non-shadow (4) number of the preceding pixel during the period of the furnace, and the image signal is written; And the second control unit controls the backlight to be turned off during the image writing period of each of the pixels; and the second control unit controls the backlight to be turned off; The region is divided into a light source from the horizontal L block (where KL<n); U Shenzhi block to the backlight according to each of the blocks; the first control unit (1) is per-the foregoing Block In the above-mentioned non-shadow, the video writing period, and the video holding period, "/in/(2) control makes the kth block (only 1 <k^L)i the aforementioned player, the first ( [1] The video writing period of the area 4 is delayed by the specific time period. The driver 131971.doc 200919431 The second control unit (1) corrects the brightness of the light source of the kth block to the foregoing ( a specific range of brightness of the light source of the k-Ι) block' (2) lighting the foregoing respective light sources with the corrected brightness only during each of the image holding periods of each of the aforementioned blocks, and other than The liquid crystal display device of claim 6, wherein the second control unit corrects the brightness of the light source of the kth block to the brightness of the light source of the (k-th) block. Within ±1〇%. 8. Crystal display device, comprising: a seed liquid night b曰 panel, which is included in the display area: a claw signal line, at == extension; n scan lines, which are in the horizontal Direction extension; and a plurality of pixels arranged in a matrix; a backlight 'used The foregoing liquid crystal panel; front ==: it uses the "number" and the non-image letter to each: the actuator "a pulse shape" to the first control portion, which writes the human heart to the non-image signal in the 2 frame = And the image-holding period in which the video signal is written in the writing period of each of the two video signals, and the image is written in the "nine-image" period of the above-mentioned materials 2 control unit, which indicates that the backlight is turned off; i3197J.doc 200919431 Block L (where 1 <[<η); the backlight is included in each of the aforementioned blocks. (1) The control unit is in the order of the non-shirt image "the tiger writing period and the video writing period period"; and the image holding the second control unit (1) according to the root number of each frame period. Calculating the brightness of each of the foregoing light sources; (7) correcting the brightness of the current frame image source light source to be smaller than the average value of the brightness of each of the foregoing light sources in the current frame period; (3) Only in each of the aforementioned blocks It was amended so that the luminance of each light source turned on, and before the evening between unlit. The liquid crystal display device U of any one of the claims ^+... includes the ^=1<S<L) block memory for storing the image signal of each of the blocks; (·< And the first video signal stored in the block memory is described in the first control unit. & Out to the top 10. For example, the liquid crystal display of the item in the item ^^^^, The non-image signal is a signal corresponding to the black display. The medium U is as shown in any one of the claims 2, 3, 6, and 8. The liquid crystal panel is a liquid crystal of the CB type. .doc