TW201108189A - Generator and generating method thereof for overdrive table of liquid crystal display apparatus - Google Patents

Abstract

A generator and a generating method thereof for an overdrive table of a liquid crystal display apparatus are provided. The generating method includes the following the descriptions. Firstly, respectively subtract specific gray-level values of a present frame data from original overdrive gray-level values of an original overdrive lookup table, and then calculate an absolute so that an absolute difference overdrive table is obtained. Afterwards, the absolute difference overdrive table is divided into standby code blocks according to a specific gray-level region. Next, values of the standby code blocks are encoded to correspondingly obtain coded blocks, such that a target overdrive lookup table having the coded blocks is obtained. The coded blocks respectively have coding values, and total bit counts of the coding values stored in the target overdrive lookup table is less than total bit counts of the original overdrive gray-level values.

Description

201108189 0910076ITW31479twf.doc/n VI. Description of the Invention: [Technical Field] The present invention relates to a generator for a look-up table of a display device and a method for producing the same, and in particular to an overdrive search for a liquid crystal display device The generator of the table and its production method. [Prior Art] #In many flat panel displays, liquid crystal display devices (Liquid Crystal)

Display, LCD) has become the mainstream of today's market due to its many advantages. However, the liquid crystal display device has a problem that the display speed is poor due to the inconsistent reaction speed of the liquid crystal molecules. In order to increase the reaction speed of liquid crystal molecules, an overdrive (OD) technique has been proposed. This technology improves the reaction speed of liquid crystal molecules by providing an overdrive voltage higher than the general driving voltage through an overdrive circuit, so that the display surface achieves the desired brightness. In practice, the overdrive voltage can be transmitted to a drive lookup table (overdrive table, 〇d table) by means of the data of the adjacent two frames (for example, grayscale data) for the table lookup operation, and The result of the lookup table is obtained by interpolation. Specifically, a block diagram of a conventional overdrive circuit as illustrated in FIG. 1A. The overdrive circuit 100 includes a sequencer (s〇rt) 11〇, a plurality of overdrive lookup tables 102a, 102b, 102c, 1〇2d, and an interpolation unit 12〇, wherein the overdrive lookup table 1〇2 The heart (7), l〇2c, and l2d are coupled between the sequencer 110 and the interpolation unit ι2〇. In general, S liquid crystal 201108189 0910076ITW 31479twf.doc/n display device providing gray scale values of 0 to 255. The overdrive lookup tables 102a, 102b, 1〇2c, 1〇2d are usually taken as shown in the figure. The appearance of the driver lookup table 1〇2 is shown by IB. Among them, the 16 specific grayscale values of the current frame data and the 16 specific grayscale values of the previous frame data correspond to 256 overdrive grayscale values, and the 16 specific grayscale values are respectively 16, 32, 48, 64, 8 〇 96, 112, 128, 144, 160, 176, 192, 208, 224, and 240. Referring to FIG. 1A and FIG. 1B simultaneously, first, the sequencer u receives the face data Fn-i and Fn (for example, gray scale data) of both the previous frame data and the current frame data, and classifies them. The most significant tuple (Most Significant Byte (MSB) data Fn MSB of the previous frame data, the highest byte data of the current frame data 匕3, the lowest bit of the previous frame data Least Significant Byte (LSB) data

Fn-i, lsb and one of the lowest byte data of the current frame data, lsb four pieces of data. Then, the most identical tuple data Fn-1, MSB and Fn, MSB of the previous frame data and the current frame data are transmitted to the overdrive lookup table l〇2a, l〇2b, l〇2c In 102d, 'to perform a table lookup. Thereafter, the data outputted by the overdrive lookup tables 102a, 102b, 102c, 102d is transferred to the interpolation unit 12A, and the interpolation unit 12〇 can perform an interpolation operation to obtain the interpolation-overdrive. Grayscale value. As can be seen from FIG. 1B, the maximum of these overdrive gray scale values is 25 〇, which occupies an 8-bit storage space. However, overdrive lookup table 1〇2 = a total of 256 overdrive grayscale values, so overdrive technology must cost a lot of storage space to provide a large amount of storage space. , 201108189 09100761TW 3 l479twf.doc / n [Summary of the Invention] The present invention provides a liquid crystal turtle jga ^

An initial overdrive search for the initial overdrive grayscale value. == ^ The charm method of the device is the charm method of the money table. First, the initial overdrive grayscale value is subtracted from the current frame. After the value of J, take the absolute value to get the temple:

Ubs-e diffe job e) overdrive lookup table. Then: ' divide the absolute difference overdrive lookup table into multiple regions to be coded. Then, the value of the ship code block towel is encoded, and (10) a plurality of coded blocks are obtained, so that the binary mark = motion lookup table having the coded blocks is obtained. These coded blocks each have a plurality of coded values, and the total number of bits of the coded value stored in the target overdrive lookup table is less than the total number of bits of the initial overdrive grayscale value. The present invention further provides a benefit of an overdrive lookup table for a liquid crystal display device having an initial overdrive lookup table for storing a plurality of initial overdrive grayscale values. The generator of the overdrive lookup table of the liquid crystal display device of the present invention comprises an absolute difference operation unit and a block coding unit, wherein the block coding unit is coupled to the absolute difference operation unit. The absolute difference operation unit subtracts the value of the initial overdrive grayscale value from a plurality of specific grayscale values of the current frame data and then takes the absolute value to obtain a absolute overdrive of 201108189 0910076ITW 31479twf.doc/n Lookup table. The block coding unit divides the absolute difference overdrive lookup table into a plurality of blocks to be coded according to the _ limb gray range range, and encodes the values in the block to be coded to obtain a plurality of coded blocks correspondingly. Thus, a target overdrive lookup table with these coded blocks is obtained. In addition, the coded blocks each have a plurality of coded values, and the total number of bits of the coded value stored in the destination & overdrive lookup table is less than the total number of bits of the initial overdrive grayscale value. In the liquid crystal display device of the present invention, the generation of the overdrive look-up table 3 generates an embodiment of the invention, and she purchases a grayscale yarn to indicate the specific grayscale value of the current image and the data of the upper-picture frame. The correspondence between multiple specific grayscale values. In the embodiment in which the generator of the overdrive lookup table of the liquid crystal display device of the present invention generates n, the specific gray scale value of the current frame data is the number of specific gray scale values of the frame data. For example, if the number of grayscale values is driven by the knives, the number of squares is Ν. In the implementation of the financial, the number of blocks to be coded is the factor of the square of Ν. The method for generating the overdrive lookup table of the liquid crystal display that is invented by the French disk 匡 匡 — — — — — ' ' ' ' ' ' ' ' ' ' ' ' ' ' 将 将 将 将 将 将 将 将 将 将 将 将 将 将 将 将 将 将The initial overdrive of the column is 第 前 ( 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前 前The flying large value in the coding region ghost is set to the maximum value (4), and the minimum value in each block to be encoded 201108189 0910076ITW 31479twf.doc/n is set to the minimum value identification code, and each code to be encoded The maximum value of the mask towel minus the small value of the data is based on the difference = the difference identification code in the block and the two parameters: when the difference in the coded block is identified I: when the zone code unit is generated The Lai code is 〇; 1 = the code unit is more sensitive to the difference between the two reference values in the block to be edited, and the pattern recognition generated by the block coding unit is ^^·············· The producer of the "house" W case +' in each block to be coded, when the identification code is G, the block coding unit will wait The coding block ^ ^ = subtracts the minimum value identification code to obtain the corresponding X = X in the coded block. In each block to be coded, when the pattern recognizes the day, the subsequent value is divided by 2, Obtaining the corresponding two [==code value. In the embodiment, in each block to be coded; when the code is g, the block code block is to minimize the block to be coded, = Value identification code to obtain the corresponding coded block =: Don't otherwise '/ every block to be coded, when the pattern cryptographic block code is earlier, the value in the block to be coded is gone separately: wide' After the code is followed by 2 - integer operation, simple value = code value in the block. In an embodiment, the method of block 2 integerized operation may be unconditionally rounded off. In the embodiment of the overdrive lookup table of the liquid crystal display device 201108189 0910076ITW31479twf.doc/n, the overdrive search of the liquid crystal display device further includes a block decoding unit. Block decoding single area ^ Ma Ma The unit 'see block decoding unit is more to decode the code at =: each; has been judged to ^ ^ In other words, when each coded horse area = code == type identification code is 1, the block decoding unit adds the number of each code value after the coded: ^ to the most based on the above, this The overdrive of the liquid crystal display device of the invention and its generation method can encode the values in the initial frame lookup table to generate a target overdrive lookup table with less storage space. - To enable the above features and advantages of the present invention The following is a detailed description of the embodiment of the liquid crystal display device according to an embodiment of the present invention. [Embodiment] FIG. 2 is a block diagram of a generator of an overdrive lookup table of a liquid crystal display device according to an embodiment of the present invention. Referring to FIG. 2, the generator 21 of the overdrive lookup table of the liquid crystal display device (not shown) of the present embodiment includes an absolute difference operation unit 212 and a block coding unit 214, wherein the block coding unit 214 is coupled to the absolute difference operation unit 212. In the present embodiment, the generator 21 of the overdrive lookup table may store a plurality of initial overdrives 201108189 uyiuu/oITW 31479twf.doc/n grayscale values stored in an initial overdrive lookup table (〇D table). An operation is performed 'to generate a target overdrive lookup table 202 with fewer bits. For convenience of description, the present embodiment assumes that the gray scale resolution of the liquid crystal display device is 8 bits, that is, the liquid crystal display device displays the image with a gray scale of 〇 255 255, and assumes that the initial overdrive lookup table of the embodiment is, for example. The overdrive lookup table 1〇2 shown in FIG. 1B is used, that is, the correspondence between the specific grayscale values of the current frame data and the previous frame data in the prior art is used as the initial overdrive. Grayscale value. Further, the current frame data and the previous frame data of the embodiment have 16 specific grayscale values (for example, 〇, 16, 32, 48, 64, 8 〇, 96, 112, 128, 144, 160, 176, 192, 208, 224, and 240), and thus the number of initial overdrive grayscale values corresponding to is 256 (i.e., the square of 16). It is to be noted that the above-mentioned set values are not intended to limit the invention, and the user may change it according to actual needs. Next, the generator of the overdrive lookup table of the present embodiment and the method of generating the same will be exemplified, but the present invention is not limited to the following description of all the embodiments of the present invention. First Embodiment In the present embodiment, the absolute difference operation unit 212 first performs an operation on the initial overdrive grayscale value in the initial overdrive lookup table (for example, the overdrive lookup table 1〇2), and further This initial overdrive lookup table is converted to an absolute difference overdrive lookup table. Specifically, the absolute difference operation unit 212 subtracts the initial overdrive grayscale value from the specific grayscale value of the current frame data, wherein the present embodiment benefits 201108189 0910076ITW31479twf.doc/n with the initial post of the column/column _ The value is reduced by a specific grayscale value to achieve this action, such as = 1:: 1B: shows, the first column of the initial overdrive grayscale value (for example, the specific grayscale value of the second column is ., for example. ) mitigating grayscale values (eg, 18, 16, 16 ^ columns initial 'overdrive 16, 16, 16, 16, 16, 16 and 16 6 m)", the second column of initial overdrive grayscale values (eg 34, 34) , I 26) Shi Feng ^ - 32, 32, 32, %, 32, 32, 32, 32, 30 =; ί = == 2), and so on (_c 驱动 drive lookup table as shown in Figure 3α The difference value is the same as the current frame on the diagonal line in Fig. 1β, so the gray scale 2 on the diagonal line in Fig. 3Α is 〇. In addition, in Fig. 3Α, the value on the diagonal line The left side has a negative number and the upper left value is a positive number. In this embodiment, the value in the differential overdrive lookup table 3〇2 of FIG. 3 is further taken as an absolute value to obtain the image. The absolute difference overdrive table 3 〇 4 is shown. In short, the difference overdrive lookup table 304 stores a value greater than or equal to 。. Next, the block coding unit 214 passes the absolute difference of FIG. The drive lookup table 304 is divided into a plurality of blocks to be coded, for example, FIG. 3C: the 16 blocks to be coded L, Μ, N, 〇, and P. In the present embodiment, the block coding unit 214 is based, for example, on A specific grayscale range is used to divide the above-mentioned blocks to be coded Α~ρ, wherein the specific grayscale range is, for example, 丨6 specific grayscale values 〇, 丨6, 3 2, 4 8 , 201108189 0910076ITW 31479twf.doc/n 64 , 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, and 240 are equally divided into four parts, that is, equally divided into [〇, 16, 32, 48], [64, 80, 96, 112] , [128, 144, 160, 176] and [192, 208, 224, 240] 'four parts. — It should be noted that the number of blocks A to P to be coded in this embodiment (ie, 16) is just Is the number of initial overdrive grayscale values (ie 256)' thus the number of blocks A~P to be coded has the same number, but The invention is not limited to this. That is to say, the present invention does not limit the above division manner to a unique division manner, and the actual division manner should be determined according to the requirements of the product. In the present embodiment, the presence of the blocks to be coded A to P It can be used to generate the coded blocks in the subsequent steps (described in detail later), wherein the coded values in the coded block (described in detail later) can be processed into the code blocks A to P through the block coding unit 214, respectively. The values are encoded to form. The block coding unit 214 sets a maximum value of each of the blocks A to P to be coded as a maximum value identification code. In other words, according to the maximum values of the blocks A, B, C, D, E, F, G, H, I, J, K, L, Μ, N, 0 and P to be coded, respectively, corresponding settings can be made. The maximum identification codes are 8, 35, 49, 44, 2, 10, 49, 34, 6, 16, 17, 32, 14, 47, 59 and 56. On the other hand, the block coding unit 214 can further set a minimum value of each of the blocks to be coded Α to Ρ as a minimum value identification code. That is to say, according to the minimum values among the blocks A, B, C, D, E, F, G, H, I, j, k, L' Μ, N, 0 and p to be coded, respectively, the minimum can be set correspondingly. Value ID 11 201108189 uyiuu/oiTW 31479twf.doc/n is 0, 2, 23, 10, 0, 0, 5, l〇, 〇, 3, 〇, 8, 〇, 12, 10 and 0. In addition to this, the 'block coding unit 214 may subtract the minimum (four) from the maximum value in each block to be coded. The value is set to - difference code. In other words, 'the difference between the minimum value minus the minimum value and the minimum value of the block to be coded can be set to 8, 33, 26, 34, 2, 10, 44, 24 respectively. 6, 6, 13, 17, 24, 14, 35, 49 and 56. In addition, in each block to be coded, the block coding unit 214 may compare the code with the - reference value, and set the =-type identification code according to the comparison result. More specifically, the present embodiment assumes a reference value, and assumes that the comparison result of the difference identification code and the reference value W is: when the block code is earlier το 214, the pattern value identification code is 1; otherwise, = unit 2M When it is determined that the difference identification code is less than or equal to the reference value 31, the block, the code value identification code generated by the code sap 214 is 〇. Then, the difference identification codes 8, 33, 26, 34, 2, 1〇, 44, 24, 6, and 逑Μ, 14, 35, 49, and 56 are respectively compared with the reference value 31 to obtain the mode value correspondingly. The identification code is 〇, 1, 〇, ! , 〇, 〇, 〇, shown based on the above, the maximum value identification code, the minimum value, the two difference identification code and the pattern identification code of the embodiment have been substantially set, as shown in FIG. 3d, please refer to FIG. 3C and FIG. 3D simultaneously. For the case where the pattern identification code is 0, the block F, H, and the encoding block 214 are encoded by the coding block A, C, E, F, pj, ij. In I, J, K, I^M, the number of blocks to be coded A, C, E, small value recognition m 〇, 〇, 1G value 77 thief to its corresponding 〇〇 0 〇 2 0 〇〇 2 2 〇〇8 4 2 0 Corresponding to each code value in the coded block. 3. G, 8' and G, to obtain the value of the block to be encoded in the block to be encoded, minus the minimum value of the identification code 0, 0 0 2 0 2 2 4 0 0 0 0 The figure can be used to find the coded value in the coded block α as shown by 3Ε. In this way, we can analogize the other modes "C'E, F, H, W, K, L_ encoding method = more description. In other aspects, please refer to the figure sc and the map, the pattern identification code

The unit 2M performs coding in such a manner that the values in the blocks B, D, G 0 and p to be coded are respectively subtracted from the corresponding minimum value identification codes 2, 1〇, 5, 12, 1〇 and 〇' Divide by 2 to obtain the respective encoded values in the corresponding coded block. Taking the block B to be coded as an example, the block coding unit 214 will be the value to be coded in the block 26 201108189 0910076ITW 31479twf.doc/n 14 8 4 2 20 12 10 4 Block B 26 19 14 9 -· -· 35 26 19 15 »· v · '12 6 2 0' 18 10 8 2 After that, you can first find 24 17 12 7 33 24 17 13 and subtract the minimum identification code 2 and then divide the values by 1 0~ 4 1

2, you can get the code value of the coded block call [16 12 8 6 as shown in Figure 3F. Herein, it is specifically mentioned that the present embodiment uses the integer-implementation operation to perform the above division operation. Therefore: When the rest of the pattern ID is 丨 block D, G, N, 〇? When the marshalling is performed, 'if the value of (4) after division is not an integer, then it is the same as the integer of the unconditionally rounded square. Fine, Benga is not limited to this. In the application of actual products, it may also be encoded by rounding, benefit condition entry or other integerization. In this way, the two-standard overdrive lookup table 2() 2(10) composed of the above 16 coded blocks (for example, α, Lu, etc.) can be obtained. At this point, the method of generating the overdrive lookup table of the second embodiment has been substantially completed. > Liming Succession Referring to Figure 2, the target overdrive lookup table 202 is typically stored in a body. In this embodiment, any one of the coded blocks is stored (for example, the number of bits is: an encoded value is stored in 5 bits, and a coded block in 201108189 0910076ITW 31479twf.doc/n is common among the blocks. 16 coded values, and the minimum value identification code is stored in octets, and the pattern identification code is stored in 1 bit. Thus, it can be calculated that an encoded block (for example, α or) only needs 89 (ie 5χ 16+) 8+1 = 89) The storage space of the bit is -.

However, compared to the initial overdrive lookup table before the encoding (ie, the overdrive lookup table 1〇2 of FIG. 1 disclosed in the prior art), each initial overdrive grayscale value occupies an 8-bit storage space, Thus, the 16 initial overdrive grayscale values occupy a total of 128 bits of storage space. Therefore, the total number of bits of the coded value stored in the target overdrive lookup table 202 of the embodiment may be less than the total number of bits of the initial overdrive grayscale value, so that the storage space occupied by the embodiment is small. . This reduces the layout size of the overdrive circuit and reduces the cost. In the application of the actual product, the generator 21 of the overdrive lookup table may also set a block decoding unit 216 coupled to the block coding unit 214 to further encode the block (eg, “call, etc.” The decoding is expected to be as shown in Fig. 2. f, in detail, the block decoding unit 216 can take the mother coded block from the target overdrive 2 (for example, α, dot, etc.) :: code read r The code and the pattern identification code, in the second = area, if the block decoding unit 216 determines that the trellis block solution = - upper minimum value recognition;: = = such as: solution ^ redundant code block (for example The pattern identification code of 10,000 is: 疋 Using the block numerator unit 216 to multiply the coded values of the multiplexed 201108189 0910076ITW 31479 twf.doc/n code values in the programmed block (example 2) by 2 respectively. The minimum value identification code is added. Based on the above concept, the generator 210 of the overdrive lookup table of the embodiment can be applied to the overdrive circuit 4A as shown in FIG. 4. In other words, the overdrive of the present embodiment The circuit 400 includes a sorter 41〇, a plurality of target overdrive lookup tables 402a, 402b, 402c 402d, a block decoding unit 416 and an interpolation (interp〇iatj〇n) unit, wherein the order benefit 410 is lightly connected to the target overdrive lookup table 402a, 402b, 402c, 402d, and the block decoding unit 416 is coupled Between the drive lookup tables 4〇2&, 4〇2b, 4〇2c, 402d and the interpolation unit 420. In the above, the sequencer 410 receives the previous frame data and the current frame data. Fnl and Fn (for example, grayscale data), and the tool f is the highest byte data of the two frame data FnlMSB, the highest byte of the current frame data (M〇st Significant Byte, MSB) data Fn, MSB, the lowest byte of the previous frame data ([(10) Poor Significant LSB) and the lowest byte of the current frame data Fn^SB four data. Then, this embodiment will be the previous one The highest byte data hi, _ and MSB of both the frame data and the target frame data are transmitted to the target overdrive lookup table 4〇2a, 4〇沘, 4〇, 4〇2d, : On the other hand, 'Wsb and Fn, LSB two pens are sent to the interpolation unit 420. Then, the block decoding unit 416β may perform the decoding operation from the target overdrive lookup table 402a, 402b, 402c, 402d/, respectively, corresponding to the encoded value, the minimum code, and the pattern identification code. After that, the block is decoded. The data outputted by the material unit is transmitted to the internal broadcast unit sample, so that the interpolation unit 420 performs interpolation processing 201108189 0910076ITW 3l479twf.doc/n to calculate the overdrive gray scale value of the interpolation processing. However, the decoding operation performed by the block decimating unit 416 can refer to the decoding operation of the block decoding unit 216, and the interpolation operation performed by the interpolation unit 420 is not the technical focus of the embodiment, and thus is not More details. The embodiment of the present invention provides a method for generating an overdrive lookup table of a liquid crystal display device, such as the method for generating an overdrive lookup table of the liquid crystal display device shown in FIG. flow chart. The liquid crystal display farm of the present embodiment (not (four)) has an initial overdrive lookup table for storing the initial overdrive gray scale values. Referring to FIG. 5' first, in step S501, the initial overdrive ash is subtracted from the current frame data (4) and the absolute value is taken to obtain an absolute difference overdrive lookup table. The pin-to-f edge is divided into a plurality of blocks to be coded by the absolute difference overdrive lookup table in the range of the S5G3 towel. After the total tread, in step S5G5, 'the value in the block to be coded is ==step-step to obtain the block-block respectively having a plurality of codes; the total number of bits of the coded values in these coded areas=; = Birth i (4) The stupid point of the look-up table is included in the above-mentioned first embodiment, 17 201108189 09100761TW 31479twf.doc/n, so it is not described here. In summary, the generator of the overdrive look-up table of the liquid crystal display device of the present invention and the method for generating the same can make the conventional technology use a large amount of storage space: 'sense opening> to obtain a substantial improvement, thereby reducing the overdrive circuit The layout size and cost of the product.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a block diagram showing a conventional overdrive circuit. FIG. 1B illustrates a conventional overdrive lookup table. 2 is a block diagram showing the generator of the overtone look-up table of the liquid crystal display device of the present invention.

3A illustrates a differential overdrive lookup table in accordance with an embodiment of the present invention. table. FIG. 3B illustrates an absolute difference overdrive detection region 4 of the embodiment of the present invention. The second embodiment of the present invention is divided into a plurality of sections. ^Value identification code, minimum value identification code, difference identification code, and pattern recognition of the other (4) - the relationship between the real-like shape, the view, the character, and the coded block Figure. 18 201108189 0910076ITW31479twf.doc/n FIG. 3F is a diagram showing the relationship between the block to be coded and the coded block under another mode identification code according to an embodiment of the present invention. Figure 4A is a block diagram showing an overdrive circuit in accordance with one embodiment of the present invention. Fig. 5 is a flow chart showing a method of generating an overdrive lookup table of a liquid crystal display device according to an embodiment of the present invention. [Main component symbol description] 100, 4〇0: overdrive circuit 102, l〇2a, 102b, 102c, 102d: overdrive lookup table 110, 410: sequencer 120, 420: interpolation unit 202, 402a, 402b , 402c, 402d: target overdrive lookup table 210: generator 212 of overdrive lookup table: absolute difference operation unit 214: block coding unit φ 216, 4 丨 6: block decoding unit 302: difference overdrive search Table 304: Absolute Difference Overdrive Lookup Tables a, b, c, d, e, f, g, h, i, J, k, l, m, n, ο, P·4 Temple Code Blocks

Fn-1, Fn, Fn], MSB, Fn, MSB, Fn], LSB, Fn, LSB · face material S501, S503, S505: steps. Coded block

Claims (1)

201108189 09100761TW 31479twf.doc/n 7. Patent application scope: 1. A method for generating an overdrive lookup table of a liquid crystal display device, the liquid crystal display device having an initial overdrive for storing a plurality of initial overdrive gray scale values The method for generating the overdrive i lookup table of the liquid crystal display device includes: subtracting a plurality of specific grayscale values of the current frame data from the initial overdrive grayscale values and then taking an absolute value to Obtaining an absolute difference overdrive lookup table; (8) dividing the absolute difference overdrive lookup table into a plurality of blocks to be coded according to a specific grayscale range; and encoding the values in the blocks to be coded, Correspondingly obtaining a multi-fixed coded block, thus obtaining a target over-the-action lookup table having the coded blocks, wherein the coded blocks respectively have a plurality of coded values, the target overdrive lookup table The stored total number of bits of the encoded values is small: the total number of bits of the initial overdrive grayscale values. The method of generating an overdrive 2 table for a liquid crystal display device according to claim 1, wherein the initial overdrive gray scale values represent the specific gray scale values of the column frame data and - Correspondence between the specific grayscale values of the upper-picture frame data. The method for generating an overdrive step if1 table of a liquid crystal display device according to claim 1, wherein the specific gray of the current frame material and a plurality of upper frame data are The number of specific gray scale values is such that the number of the initial overdrive gray scale values is the square of N. 4. The overdrive of the liquid crystal display device according to claim 3, wherein the number of the blocks to be coded is a factor of a square of N. 5. The method for generating an overdrive lookup table of a liquid crystal display device according to claim 1, wherein the initial overdrive grayscale values are subtracted from the specific grayscale values of the current frame data. , the steps of:, subtracting the initial overdrive grayscale values of the column/column from the first specific grayscale value of the current frame data, where / is a positive integer. , =· If you apply for a patent scope! The method for generating an overdrive-finding table according to the liquid crystal display I, wherein the steps of the value rows in the blocks to be coded are coded to obtain the coded blocks correspondingly Including · the code is to - the maximum value in each block to be coded is - the minimum value in the maximum value identification code block is - the minimum value = the maximum value in the block is decremented, and Set to - difference identification code; and the value of the line ratio of the value of the shirt and - reference value: 7' ί 疋 is a pattern identification code. i ί = the encoding of the liquid crystal display device of the second embodiment, the row encoding, to obtain the value i in the block to be encoded i in each of the areas to be encoded; ί = ” step further includes : When the value is tested, the haihai pattern is recognized as (〇); the field ^|value identification code is less than or equal to this! In each-to-face block, when the difference is greater than the reference Cui 21 201108189 091007611W 31479twf.doc/n The mode identification code is 1. The method for generating a liquid crystal display loading lookup table according to the seventh aspect of the patent application, wherein the coded blocks are coded in a row to obtain corresponding The steps of the coded blocks, are further included in each block to be coded, when the pattern identification code. The value in the block to be coded is assigned to the minimum value, and the second = corresponding Encoding the code values in the block; and in the block to be coded, when the pattern identifier is a value in the block to be coded, the value is _, and the corresponding value is obtained. The coded values in the coded block. The generation of the read and write of the 7th full-time (4) a method, wherein, in the blocks to be encoded, the two blocks, the flat code two correspondingly obtain the coded blocks, the step further comprises: /main secret in each block to be coded, when When the pattern identification code is 〇, the value in the continuation block is respectively subtracted from the minimum value, so that the code values in the corresponding coded block are obtained; and in the block to be coded, when the mode When the identification code is 1, the value in the block is subtracted from the minimum value, and then divided by the integer operation, so that the corresponding coded block in the coded block is obtained. The liquid crystal display device of the above-mentioned liquid crystal display device generates money, and the towel is subjected to a recording and cutting method package. For example, the liquid crystal display device according to claim 8 of the patent scope of the patent application is 2011 22189 0910076ITW31479twf.doc/n The method for generating the lookup table further includes: decoding the encoded values. The step of driving the liquid crystal_device of the eleventh item includes the 7-party going to '唭, and decoding the encoded values, In each coded block, when Identification code is 0, the encoded, the plurality of block encoded value plus the minimum Long code; and In each coded block, when the pattern identification code is 1, it will talk about "10" code counts and add the minimum value identification code to the number of cakes after 2. 曰η.--Liquid liquid crystal display device a generator of the overdrive lookup table, the liquid helium display device having an initial overdrive lookup table for storing a plurality of initial overdrive grayscale values, wherein the generator of the overdrive lookup table of the liquid crystal display device comprises: An absolute difference operation unit, which subtracts a plurality of specific grayscale values of the current frame data from the initial overdrive grayscale values, and then takes an absolute value to obtain an absolute difference overdrive lookup table; and a region The block coding unit is coupled to the absolute difference operation unit, wherein the block coding unit divides the absolute difference overdrive lookup table into a plurality of blocks to be coded according to a specific gray scale range, and the plurality of blocks are to be coded. The values in the coding block are encoded to correspondingly obtain a plurality of coded blocks, thus obtaining a target overdrive lookup table having the coded blocks, wherein 'the coded blocks respectively have multiple codes The value, and the total number of bits of the code values stored in the target overdrive lookup table is less than the total number of bits of the initial overdrive grayscale value. The generator of the overdrive lookup table of the liquid crystal display device of claim 13, wherein the initial overdrive grayscale values represent the pure grayscale value of the current frame data and Corresponding relationship of a specific gray scale value. The generator of the over-motion look-up table of the liquid crystal display device of claim 13, wherein the specific gray scale values of the current frame material And the number of the plurality of specific grayscale values of the previous frame data is N such that the number of the initial overdrive grayscale values is the square of N. 16. As described in claim 15 The generator of the over-the-action look-up table of the liquid crystal display device, wherein the number of the blocks to be coded is a factor of (four) square. 17. The liquid crystal display device according to claim 13 of the invention Generator 'where the absolute difference operation unit will The initial gray scale values are subtracted from the specific gray scale values of the current frame data = the absolute difference operation unit is used to subtract the current frame data from the first column to the current frame data (4) (4) setting the gray level, / is the over-range of the liquid crystal display device according to item 13: wherein the block coding unit sets a large value per code to be a maximum value identification code, Set the minimum value of each to be edited to the minimum value, and also set the value of each of the maximum values to be subtracted from the minimum value to a value of 5 1 ' The comparison result of the difference identification code of each block to be coded + is compared with the value of the reference 24 201108189 uy 1UU / 61TW 31479twf.doc / n is set as a pattern identification code. ^The overdrive-to-lister of the liquid crystal display transposition described in claim 18, wherein the block coding unit determines each to-be-received: When the value is, the pattern identification code of the region is 〇, and the block coding unit j breaks the difference code in the mother-phase code block to the reference value, the block coding unit The generated pattern identification code is the over-numbered block coding unit of the liquid crystal display, and the second small value identification code in the block to be encoded is obtained to obtain the corresponding coded block element. When the code value 'self-axis lang code is 1, the value in the block coded single block is subtracted from the code value in the coded block of the second block of the minimum value identification code. Driving the liquid crystal display device described in Item No. 19 of the twenty-two patent application, wherein in the block to be coded, when the module: = is not subtracted from the second block The encoded values. The corresponding coded area is searched for 过 ϋ ϋ ϋ ϋ ϋ 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶 液晶The method includes unconditional rounding. The solution value = block coding unit, wherein the _ axis surrounds the liquid crystal display device according to item 23 of the above. 'In each of the coded blocks, when the block ρ is forced to determine that the nucleus recognition horse is G, the block decoding unit adds the minimum value to the code values in the gamma block The code, when the block p=early 70 judges that the pattern identification code is 1, the block decoding unit multiplies the code values in the j code block by the value after 2 and adds the small value of the child attack respectively. Identifier. 26