TWI311309B - Method and apparatus for driving a pixel signal - Google Patents

Description

1311309

#三达编号: TW2514PA IX. Description of the Invention: [Technical Field] The present invention relates to a method and apparatus for driving a halogen signal, and more particularly to a method and apparatus for improving the reaction time of a halogen signal. - [Prior Art] A liquid crystal display (LCD) uses an applied electric field or heat to change the liquid crystal molecules from the initial alignment to another alignment. The change in state causes the birefringence, polarization rotation, dichromaticism, light scattering, and the incident light of the liquid crystal molecules to be incident on the liquid crystal molecules. Optical properties such as light transmittance change. Due to this change in optical properties, the human eye changes the visibility of the liquid crystal display, such as transmittance, and the like. Therefore, the applied electric field plays a key role in driving the liquid crystal display. Conventional techniques in driving a liquid crystal display must cause a rotation of liquid crystal molecules corresponding to each pixel by an applied voltage. In order to express a dynamic image (continuously changing image), it is necessary to reduce the reaction time of the liquid crystal molecules. The reaction time of the liquid crystal molecules is related to whether the liquid crystal molecules can react rapidly to the applied applied voltage. In order to shorten the reaction time of liquid crystal rotation, it is common to use a data line (data 1 ine) to apply overvoltage to the halogen. 5 1311309

- Sanda number: TW2514PA to the scan, line 102 and data line 104 of the thin film transistor (TFT) 1〇6, and the pixel electrode 1〇8 connected to the thin film transistor. Referring again to Fig. 16B, in the halogen region 10G, the protruding portion 110 and the slit 112 are respectively distributed on the shirt filter substrate 114 and the thin film transistor substrate 116. The arrangement of the protruding portion 110 and the slit 112 is such that the alignment of the liquid crystal molecules and the upper and lower polarizing plates (not shown) are at an angle of 45 degrees, so that the light is maximized when it is vertically aligned through the multi-domain and is directed to the liquid crystal display. The gray scale brightness, and the liquid crystal sub-parameters and the upper and lower polarizing plates (not shown) can not be arranged at a 45-degree angle, that is, the alignment of the liquid crystal molecules is abnormal. The first to the 17th images simulate the side field effect of the liquid crystal molecules in the region U8 of the 16A area at the same observation time due to the pattern of the protrusions (protrUSlon) and the slit at different applied voltages. The resulting switching is 'the horizontal axis and the vertical axis of the mth map correspond to the AA of FIG. 16A and the A-B direction, respectively. As shown in Fig. 17A and Fig. 17B, when the applied voltage is (4) 5 ^ #, respectively, the liquid crystal molecules of the region 118 are replaced by the side field effect. However, as shown in Fig. 17C and Fig. 17E, the external force is increased to 5.75V, 6.0V, and 6 respectively, and the center of the region 118 = liquid crystal molecules, which are different from the side field effect. Switching 'particularly as shown in Figure 17E, some of the liquid crystal molecules, mb abnormal switching is the most serious. At some point after the abnormal switching of the liquid crystal molecules, the liquid crystals that are frequently switched may be tilted back to the correct angle due to the action of the adjacent liquid crystal molecules. However, it is necessary to wait for the abnormal switching of the liquid crystal molecule weight 7 1311309

。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 However, it is also possible for the skilled person to use the numerous details to make a variety of variations or variations of the description of the description. Referring to FIG. 1 , which is a block diagram of the resulting display and lean compensation device according to an embodiment, the display unit (9) is illustrated, and the display unit 134 is configured to drive a liquid crystal display panel. (4) The display drive device 13〇. The display driving device 13 includes data for driving the liquid crystal age device, the data line of the board 144 (also referred to as a signal line, a straight line, etc.), and the module 14G. The display device i3Q also includes an L-scan drive module 142 that drives the scan lines of the liquid crystal display panel 144 (also known in the industry as a horizontal line). The liquid crystal display panel 144 may be a liquid crystal display panel in the form of a vertical alignment (VA), a liquid crystal display panel in the form of a patterned vertical alignment, a liquid crystal display panel in a multi-domain vertical alignment mode, or other forms of liquid crystal. Display panel. The timing controller 138 in the display driving device 130 receives the image data 'and correspondingly and according to the image data (5) common signal to the data driving module 140. The data-driven mode group 140 sequentially drives the signals on the data lines to the voltages of the appropriate ones according to the signals corresponding to the image data. When the timing controller 138 locks the data drive module 140 and the drive in the scan drive module 142 9 1311309

, Sanda number: TW2514PA - Preface. According to an embodiment of the present invention, the image (4) received by the display driving device (10) includes the compensated image data generated by the #_compensation device 132. The compensated image data received by the driving device 130 is not considered, and in some cases, the step voltage level (four) 卯 (9) leVel (the multi-level electric surface is driven by the step driving technique) is applied to the liquid in the frame period. Some of the elements in the panel H4 are displayed on the day. In addition, the compensated image data provided by the data compensation device is also considered to be applied to the data line of the selected element in some cases. In the next more detailed discussion, the multi-step drive technology of the drive line and the over-moving technology changed the reaction time of the liquid crystal molecules. The data compensation device 132 can also be implemented by a combination of 1 9 1 ς ® . Any part of the group of the driver module 14 0 provided by the brother 12-Η map provides the voltage of the diagonal green + the wide fork 1, the beibei line, and is transmitted to the selected film through the liquid crystal display (10) of the liquid crystal display. The book. Scan 2 module _ enables a scan line to turn on the film crystal molecules to rotate. It is expected that the corresponding liquid material will be supplied to the selected halogen element, and the initial/or initial gray level voltage of the halogen signal is the reference corresponding liquid crystal molecule to achieve the true sound and error of the target. The turtle pressure from red to 0 ^ is called the target voltage or the gray scale voltage. As shown in Fig. 2, the gray scale voltage of the halogen element is changed from: the initial gray scale electric power M L to the target gray scale electric power rotated by the primary crystal molecules. As shown in Figure 2, the book contains a lot of liquidity in the sputum (corresponding to a use of 10 1311309)

Sanda number: TW2514PA ^ The brightness received) changes over time. The liquid crystal molecules change from an initial alignment state to another = state during a reaction between tbr (tbgl to 1:bg2). In other words, the 'pixel brightness' changes from the initial intensity bgi to the target in the reaction time k; f shows the shell degree & ' to display the target gray scale value. As described above, when the liquid crystal molecules change from the - vertical alignment state to the one-level alignment state, assuming that the elemental change in the transient voltage is too large, the liquid crystal molecules may rotate in the wrong direction and abnormally switch.

Swltchlng). According to the photoelectric characteristics of the liquid crystal molecules, the alizarin has a -inversion cross-pressure % with respect to an initial voltage Vgl. When the instantaneous change of the driving voltage is larger than the inversion trans-pressure %, the liquid crystal molecules of the pixels may differ from the abnormal switching effect. As shown in Fig. 38, the target voltage Vg3 of the halogen is larger than the reverse voltage v-d, and the reverse voltage Vr...e is added by the initial voltage Vgl and the inverted crossover v of the halogen. Γί: To: Different reverse voltages. Reverse the cross pressure and the piano: the board: ί: * " switching voltage related. Different liquid crystal displays: The board can have different reverse cross-pressures. Moreover, the different initial voltages also correspond to different reverse crossovers. Assuming that a driving dust is lifted from the initial connection to the target voltage V g 3 , a voltage difference between the initial voltage Vg i and the target voltage H greater than the reverse voltage across the voltage v(8) may cause the liquid crystal of the halogen to rotate in a wrong direction. An abnormal switch occurred. In summary, as shown in the figure, the pixel brightness (shown by the curve sub-required) needs to be - longer interval trb3 = change from the initial brightness bgl to the target brightness bg" because the abnormal switching of the liquid 曰^ causes the 昼 在 to switch at different gray levels Need a longer counter: knife 1311309

, Sanda number: TW2514PA time ' makes the residual image appear on the display screen. The curve 182 in Fig. 3B illustrates the change in the luminance of the pixel when the driving voltage is changed from Vgi to b, and the difference between ^ and ^ is smaller than the reverse voltage v = g". In this state, the pixel brightness is in the ratio of seven. For example, the small reaction time (t(8) varies from the initial brightness bgl to the target brightness bg2. Therefore, the 3β figure shows that when the driving voltage step (drivln" 〇ltage coffee) exceeds the reverse cross-pressure, The effect of increasing the reaction time. The problem of liquid crystal ^ anomaly switching caused by processing the voltage steps exceeding the voltage of the reversal of the gas, in some embodiments is to apply a multi-step method. The method is to provide the element selected by the data line to the scanning line by the data line, and the voltage of the halogen signal is driven by the initial voltage (greater than the initial voltage), and after the time interval, the driving is driven from the middle to the target. Voltage (greater than the intermediate voltage) - Initial: As shown in the second figure, in the current frame, the element has Z gl. The initial voltage Vgl may be the pixel in the previous frame period ====咐 咐 (4) step drive technology voltage ^ to the eyes P dust 1nvg te, nl Que), providing a voltage across the voltage from the initial factory; the order is avoided to be greater than the reverse crossover voltage Vgl to the other figure' which means avoiding the voltage step from the initial bit earth power 1 is greater than the reverse The voltage Vreversed is at or near the current figure, the first spanning time vm, the time tm of the starting point, providing a high intermediate voltage ^"Vmgl is used to generate the voltage step from the initial voltage to the day after t Step, and %'. Then, after time - time interval - provide a second voltage across 1, and = 12 1311309

- Sanda number: TW2514PA - Figure 7 shows the correlation between the corresponding brightness and reaction time from 〇 to 255 gray levels, and the application of galvanic and reaction time, using conventional drive technology and multi-step drive technology. Relevance. The curve i 7 第 of Fig. 7 illustrates the conventional voltage driving technique when the voltage across the voltage jumps from 0 to 6.4 volts. Note that the jump from 〇 to 6.4 volts exceeds the reverse cross-pressure of the pixel, which may cause abnormal switching of the liquid crystal molecules. Inevitably, as depicted by turn 174, the reaction time of the halogen from 〇-gray to 255 gray is the time interval tbg3. By illuminating the target voltage to 5.8 volts (corresponding to 255 gray scales), the reaction time can be improved. However, the brightness achievable is lower than the brightness at 6.4 volts. Relatively in accordance with the multi-stage driving technique of the embodiment, the applied voltage across the first will be driven (see curve 172) to the intermediate voltage (the example in Figure 7 is 5^8 volts, corresponding to 247 grayscale) . When the applied voltage is maintained at the intermediate voltage value, the applied voltage is increased to 4 volts corresponding to the target red of 2 (10). For example, if the curve is 176, the first time is increased from 〇 to 247 gray level to 255 gray level, and the response time of the element reaching the target gray level is the time interval ', farther than ' (in the traditional drive technology The reaction time is small. In addition, by driving the power to 6.4 volts, the brightness required for the 255 gray scale can be achieved. According to the example of the p-butter, the multi-level drive technology discussed above can be combined with the overdrive technology. When the gray level difference (the difference between the initial fire P white and the target gray level) of the selected element is small, the overdrive technology can select the element. However, when the gray-scale difference is larger than the reverse-crossing magic, the driving technique can be used to drive the selected pixel, and the further driving device 130 (Fig. 1) can be used according to different situations at 15 1311309.

Eda number: TW25I4PA Selective conversion between the two technologies. Figure 8 shows the relationship between the driving voltage and the time of the overdrive technology. Two: If the 'f: the target voltage is higher than the reverse voltage, the driving voltage is increased between the head voltage VTMsed. Overdrive voltage L. The difference between g3 and counter-time corresponds to the target angle and then to the corresponding angle in the liquid day: it will change to the target voltage - crystal molecule: two cut = the figure 9 shows the drive technology of the drive technology Repeatedly, this example = drive technology is used for the goal of 昼素 · greater than the butterfly: Vg3 = to the ' _ electric _ mouth to the media, at the time ", the drive voltage from the intermediate voltage L is connected to the power supply vg3 overdrive Voltage Vc)d. Then, at the time, the eye pressure is reduced from the overdrive voltage L to B g 'driver power_example ===_Technology~子二=术(第8数据—Example A flow chart of the steps of selectively using the overdrive technique (8 diagram) and the multi-motion technique (FIG. 4A) is provided. The frame (fourth) stored in the fine frame 132 (Fig. 1) is stored in the data compensation device 132. ',, ' (5) frame f image (four) obtained from the frame memory towel, and got 16 1311309

* Sanda number: TW2514PA " to an initial grayscale Ginitial (802). The image data of the current frame is also accepted by the data compensation device 132 to obtain the target gray level Gtarget (804). The data complement-loss device 1 32 compares the target gray scale Gtarget with the initial gray scale (initial comparison. (8 〇 6 ). For another $ 丨 Gtarget-Ginitial l > AG limit 9, the multi-level drive technique (808) is selected. Conversely, 'if |Gtarget— Ginitial|<AGlimit, the overdrive technique (810) is selected. Note that the initial grayscale Ginitiai and the target-scale grayscale Gtarget mentioned here correspond to those in Figure 4A. The initial voltage Vgl and the target Lu voltage Vu ' also represent a predetermined gray scale difference corresponding to the inverted cross voltage Vegi. For example, as shown by the curve 4〇2 in FIG. 5, the prior gray is good. The step ΔGlimit is 244 gray scale. Figure 11 shows the gray scale and according to the traditional drive technology (curve 902), multi-step drive technology (curve 904), overdrive technology street (curve 9〇6) and composite drive technology (Curve 908) Correlation between the corresponding reaction times. The k-axis in the U-graph represents the gray-scale difference, and the vertical axis represents the reaction time. As the curve does not, when the overdrive technique is used alone, the low-order grayscale The reaction time of the poor liquid crystal display 10= can be effectively shortened. Relatively large, the liquid crystal molecules will still rotate to the wrong direction, and if the drive technology is used alone, the reaction time will be longer. As shown by curve 9〇8, the composite drive technology provides better reaction time. Performance. As noted above, composite drive technology uses overdrive technology for low-order gray-scale differences, but uses multi-step drive techniques for high-order gray-scale differences. As a result, the response speed of liquid crystal displays that traverse grayscale ranges increases. Figure 12 is a block diagram of a data compensating device 132 in accordance with the present invention. The data compensating device i 132 includes a controller 1321, a storage unit 17 1311309, a three-number: TW2514PA 1323 (as shown in the figure §) 'And a low load drive comparison table (10) τ) 1325. The bedding compensation device 132 receives the first image data PDD (Previ〇us Display Data) in a first time period and stores it in the storage unit 1323' to receive the second image data (10) in the second time period ((6) Coffee Display Data ), · The second time period is at least one frame shorter than the first time period, and the period is between. The second image data CDD is in the second time period; the skin is stored in the storage unit 1323. The low-load driving pair control table 1325 under the control of the controller 1321 determines the difference between the target gray level corresponding to the second image data (10) and the initial gray level corresponding to the first image data touch (the W picture) Step _. Assume that the low-load driving comparison table 1325 determines that the gray-scale difference is greater than the gray-scale difference AGumU of the pre-turn (which is greater than the voltage step of the inverse cross-pressure of the pixel). The comparison table 1325 is smaller than the preset gray scale. The difference output complements the private; _Γ Drive Data), the compensation data LDD is related to (4) (four) not _ intermediate gray level. It must be noted that the multi-stage = motion technique according to the present invention 'compensates (4) that the LDD causes the application (four) to be driven to the inter-voltage. Under the condition of the disc (such as when the target gray scale associated with the second image data is different from the initial gray scale of the greedy material than the predetermined gray scale: 1,) 'can provide different compensation data LDD to achieve overdrive In the case of Dragon (4), the compensation data will cause the voltage of the drive book to reach L (Fig. 8 or Fig. 9). - In the driver 'will use the complex driver comparison table (instead of a different :;, different driver comparison table output relative to different scenarios, ', as for the two scenarios discussed above: (!) initial Ash 18 1311309

: Sanda number: TW2514PA - The difference between the gray level of the order and the target is less than △Gmt; (2) The difference between the initial gray level and the target gray level is greater than △ Gunut. The controller 1321 outputs a clock (CLK) signal and a read/write enable control signal to control the input and output actions of the storage unit 1323. The storage unit 1323 is used to store the pixel grayscale values of an entire frame. The low load drive • the comparison table 1325 is coupled to the storage unit 1323, receives the second image data CDD from the input of the data compensation value, and receives the first image data PDD from the storage unit 1323. Compensating image data based on image data PDD and CDD • LDD can be derived from the low load drive comparison table 1325. When a multi-step driving technique is shown in accordance with an embodiment, first the applied voltage is increased from the initial voltage to the intermediate voltage, followed by the second step from the intermediate voltage to the target voltage. Note that in accordance with the present invention, multiple stages occur within a frame period. The multi-step driving technique is controlled by the asset compensation device 132 to output the first provided compensation data LDD (corresponding to the intermediate voltage of a pixel) and the second image data CDD subsequently provided by the data compensation device 132. Both LDD and 0 CDD occur within a frame period to enable multi-level drive techniques to enable multiple voltage steps in a frame period. To achieve this, the data compensation device 132 operates at a double cycle rate. Similarly, when the overdrive technique is demonstrated, according to the present invention, LDD and CDD are continuously supplied in a frame period, and then the LDD first drives the pixel signal to the overdrive voltage Vw to follow the CDD to drive the pixel signal to the target voltage. . In a different embodiment, instead of providing the LDD and CDD in a frame period, the data compensation device 132 provides only compensation in the current frame. 19 1311309

- Sanda number: TW2514PA - Data LDD, which is greater than the predetermined gray level difference for any particular element, to detect the difference between the second image data CDD and the first image data PDD. For example, in the case of frame η-1, the gray-order value of the pixel X in the first image data is 〇, and for the frame η, the gray level value of the element X in the second image data (3)d Is 255 (the difference between 255 and 0 is greater than the predetermined grayscale difference), and then the data compensating means 132 provides the compensation data LDD at frame η, where the LDD is a grayscale value of the prime X of less than 5 ). In this different implementation, the lower grayscale value provided by the LDD effectively reduces the target voltage of the halogen X. However, the reduction in the gray scale value of the halogen X target in the frame η takes into account the improvement in the reaction time. More broadly, it is assumed that the (3)d in the frame n (received by the hello replacement device 13 2) is different from the predetermined gray scale value of the arbitrary pixel, and is different from the PDD in the frame η-I, the data compensating device 132 outputs an LDD in the frame n to reduce the target grayscale value of a particular pixel in the frame n. Note that the compensated image data LDD is based on the comparison of the current image data CDD in the frame n with the previous image data pDD in the frame η-ΐ - the image call compensation device 132 does not image the subsequent frame n+l and subsequent images The data was incorporated into the test to test the purpose of the LDD in the frame. Therefore, the data compensation wear: 13 2 does not need to wait for the image data subsequently output in frame 1 to output the image data in the frame n. It is assumed that the CDD in the frame n (as received by the data compensation device 132) is different from the PDD in the frame η-I in that the data compensation device 132 is less than a predetermined grayscale value of each of the books. In the frame! ! Round out the CDD (replace LDD). As shown in FIG. 13, according to an embodiment, the liquid crystal display unit 134 20 1311309

: Sanda number: TW2514PA Positive-mouth material compensation device 132 and display drive device 13〇. The liquid crystal display single illusion 34 in Fig. 13 includes at least a liquid crystal display panel 144 and a display-drive garment 130, and the skirt 130 includes a timing controller 138, a data driving handle set ’ and a scan driving module 142. The data compensation device 132 is coupled to the drive device 13Q (four) sequence controller 138 and outputs the compensated image data ldj) from the low load drive pair ', ', table 1325 to the timing controller 1 (10). The latter 1 outputs the compensated image data L D D job driving core group 140 via the timing controller 13 8 . The image driving module 14 converts the compensated image data (10) into a corresponding gray scale electric Wei (4) liquid crystal display panel (4). Referring to the other embodiment shown in FIG. U, the data compensation device 132 and the display system circuit board 15 are integrated. The display system circuit board 150 includes a scaling controller 154 (scaler) and an LVDS transmitter. 156. In this embodiment, the data compensation device 132 is coupled to the zoom control output terminal 152 and the input terminal 158 of the _transmitter 156. The data 2 device 132 receives the second image data (10) and the portion 2 output from the scaling controller 154, and the data compensation device 132 outputs the compensated image frame LD and/or the second image data CDD to the LVDS transmitter 156. The liquid 曰 is driven by the LVDS transmitter 156 by the four-day ^ ^, and the night is not too early (as in the first figure, 130). The water eve u part is also part of the display system board 15Q, such as video decoder, microprocessor, sound source processor, a crying, - SI: programmable read-only memory (6), - de-interlacing: (demterlaCer), a synchronous dynamic memory (SD_, - 暮 direct display (_, a digital image interface receiver (10) recer Rx) and an analog-to-digital converter. 21 1311309

: Sanda number: TW2514PA - As shown in Fig. 15, according to another embodiment, the data compensation device 132 is implemented in a control device 160, such as a programmable gate array (FPGA). The control device 16A includes an MPEG decoder 164 and a display card 1. The data compensation device 132 is coupled between an output 162 of the MPEG decoder 164 and an input 168 of the display card 166. The data compensating means 32 receives the second image data CDD outputted from the MpEG decoder 164, outputs the compensated image data [卯 to the display card 166, and then the display card 166 drives the liquid crystal display unit. In view of the above, the present invention has been described above in terms of a preferred embodiment, and is not intended to limit the invention, and various modifications may be made without departing from the spirit and scope of the invention. And the scope of the present invention is defined by the scope of the appended claims.

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, Sanda number: TW2514PA • [Simplified description of the drawing] Fig. 1 is a block diagram of the obtained display unit and the asset compensation device according to the embodiment. Early and Beibei supplements Figure 2A is a graph of time versus time based on traditional drive technology. The dynamic voltage time corresponds to the driving voltage in the pattern 2A, and the pixel luminance versus time is based on the conventional driving technique. The pixel touch voltage time == map corresponds to the driving voltage in the pattern 3A. The gold map of the luminance pair of pixels is a graph of the driving voltage of the denier obtained with respect to time according to the multi-step driving technique according to an embodiment. The fourth diagram is a graph corresponding to the driving voltage time in the figure. An I-degree pair is a graph of the response time versus grayscale value for traditional drive techniques and multi-step drive techniques. Figure 6 is a plot of grayscale values versus voltage levels. Fig. 7 is a comparison diagram of the pixel reaction time when the conventional driving technique and the multi-level driving technique are used according to the embodiment. Fig. 8 is a graph showing the relationship between the dynamic voltage and time according to the overdrive technique according to the embodiment. Figure 9 is a diagram showing the driving voltage versus time in accordance with an embodiment in accordance with an embodiment of a driving technique that combines multi-step driving and overdriving. 23 1311309

- Sanda number: TW2514PA - Figure 1 is a flow chart of a process for applying multi-level drive technology and excess drive technology according to an embodiment. Figure 11 is a comparison diagram of the reaction time of halogens with respect to conventional driving techniques, overdrive-driving techniques, multi-step driving techniques, and driving techniques incorporating overdrive and multi-step driving, in accordance with an embodiment. • Figure 12 is a block diagram of a data compensation device, in accordance with an embodiment. - ¥ 13 is a block diagram of an integrated data compensation device and a display driver device according to an embodiment. Figure 14 is a block diagram of a display system board incorporating a data compensation device, in accordance with an embodiment. ‘, Figure 15 is a block diagram of a compensation device implemented by a system device, in accordance with an embodiment. The first figure shows the layout of the protrusions and slits in the traditional multi-domain vertical alignment liquid crystal display 5|in & Figure 16 is a cross-sectional view along line Α-Α in Figure (10). φ # 17Α Ε Ε 说明 模拟 模拟 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 液晶 液晶 液晶 液晶 液晶 液晶 液晶 104 104 104 104 104 104 104 104 104 104 104 104 104 104 104 104 104 104 104 104 104 104 104 Crystal 108 : Alizarin electrode 24 1311309

; Sanda number: TW2514PA 110: protrusion 112: slit 114: color filter substrate 116: thin film transistor substrate 118: region - 120a, 120b: liquid crystal molecule. 130: display driving device 132: data compensation device® 134: Display unit 138: timing controller 14 0. tribute driving right group - 14 2. Scanning driving module 14 4 . Liquid crystal display panel 1321 : controller 1323 : storage unit I 1325 : low load driving comparison table 15 0 : Display system board 152: output controller 154 of scaling controller: scaling controller 156: LVDS transmitter 158: input 160 of LVDS transmitter: control device 162: output 164 of MPEG decoder: MPEG decoder 25 Ί 311309

: Sanda number: TW2514PA - 1 6 6 ··Display card 168 : Input end of display card 170, 172, 174, 176, 180, 182 : Curve

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Claims (1)

1311309 卜正换页+-3编况:TW" -:ι十, the scope of the patent application: 1. A display device 'includes · a display panel, the display panel has a pixel array; and a compensation device, Receiving an image data in a first frame period; comparing the image data with a front image data; determining any particular element in the pixel array, the image and the image Whether the first difference of the data exceeds a predetermined threshold; and when the first difference of the specific element exceeds the preset threshold value %, the compensating device provides a compensated image in the first frame period The data in the first frame period depends on the compensation image f material and the front image data, and has a first difference value and the second difference value is smaller than the first difference value of the specific element; The specific element corresponds to the inverted voltage value: and the difference between the voltage of the target voltage and the read voltage is greater than the inverse (four) voltage value. The complement: the second display unit of the display device of the first item , in which more __^ material is implemented to perform the specific elementalization - the 昼素 signal The multi-step drive includes: Navigating the 昼 讯 signal to maintain the 昼 讯 signal from the initial voltage in the initial voltage interval; 27 !311309 : T\V25HPA After the time interval, the first intermediate voltage is driven to a target voltage of the pixel signal, and the target voltage is greater than the display device described in the second item of the patent application scope, wherein the Transverse pressure, the reversal across the pressure ^ meaning - voltage step is different from the voltage (four) material to the line phase _ liquid crystal contains = such as the second paragraph of the application of the second rhyme of the bribery device, more board group, the display mode The group has the compensation device and the second two '1 π of the display surface, and the group further has a -# material driving module to drive the display surface compensation module to correspond to the supplementary image data and the far image provided by the supplementary device Data to achieve this multi-level drive. 8. The display device according to claim 2, further comprising a system circuit board having the compensation device; and a display module, and having a data driving module and the display panel, the shell The material driving module is configured to drive the data line of the display panel; wherein the data driving module corresponds to the complementary image data and the image data provided by the compensation device to implement the multi-level driving. The display device of item 2 further includes an MPEG decoder and a display card, wherein the compensation device is coupled to 28 1311309 'Γν,':·ΜΡΑ the MPEG decoder -+, ,. ; % 一 ^ know the end and one of the input terminals of the display card: and the group 'has the -f material drive module and the display panel tribute drive mold to drive the data line of the display panel, " where β stomach The material driving module corresponds to the image-poor material and the image data provided by the compensation device, and realizes the money driving. The magnetic display device is driven by the display device as described in claim 2, and the hegemonic device is further used. To output enough to have enough Cleverly drives a 昼素 signal. The 昼素.Signal is supplied to the second array of the 昼 阵列 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Driving from the first voltage to the overdrive voltage, the overdrive voltage being higher than the first voltage; and 驱动 driving the NMOS signal from the overdrive voltage to a second voltage, the second voltage being less than the overdrive Voltage χ 8. A driving device for driving a display panel, the display panel having a pixel array 'The driving device includes: a storage component' for storing a first image received in a front frame period And a module for: receiving a second image data in a current frame period; determining a target corresponding to one of the far second image data. The grayscale value and the corresponding to the first image data One of the initial grayscale values is: a value that exceeds a preset grayscale difference; and when the difference is greater than the preset grayscale difference, a compensated image data is outputted in the current frame period, wherein the compensated image Information and the 29th year of your S month Repair (more) positive replacement page 1311309 Sanda number: TW2514PA. The difference between the initial grayscale values is less than the preset grayscale difference. 9. The driving device according to claim 7, wherein the compensation image The data is driven by the current frame period from the initial grayscale value to an intermediate grayscale value, and the intermediate grayscale value is maintained for a time interval, and the compensated image data is also in the current frame. The specific element is driven from the intermediate gray level value to the target gray level value, and the target gray level value is greater than the intermediate gray level value. 10. The driving device according to claim 9 of the patent application, Wherein the φ module is further configured to: determine whether the difference between the target grayscale value and the initial grayscale value is less than the preset grayscale difference; when the difference is less than the preset grayscale difference, the output is used So that one of the second compensated image data can be driven; the second compensated image data can drive the specific pixel from the initial grayscale value to an overdrive grayscale value, and is maintained at the overdrive gray at a time interval Order value, which can also be used for the specific element The overdrive grayscale value is driven to # the target grayscale value, which is less than the overdrive grayscale value. 11. The driving device of claim 9, further comprising a specific data driving module for driving a pixel signal to the specific pixel via a data line, corresponding to the compensation image data The data driving module 'the poor material driving module realizes: driving the halogen signal from an initial voltage to an intermediate voltage; maintaining the pixel signal at the intermediate voltage during a time interval, after the time interval 5 Drive the halogen signal from the intermediate voltage to the head-to-head 30 13 η勰: TW2514PA 1 When the Mayday is repaired (more) is replacing page 1 ^*""***""&quot 11 1 1 ' »*.— ·|·. ——. standard voltage, the target voltage is greater than the intermediate voltage; and wherein the initial voltage corresponds to the initial gray level value, the intermediate voltage pair should be in the middle gray The order value, and the target voltage corresponds to the target gray scale value. 31 1311309 璁喵||长蹑唣赵 八 Year of the year, 22 days of repair (more) if replacement page n¥驾吹伽b 8 / 8 1311309 5 Φ 3 n % 3⁄413⁄4 -I I —A Ibo Λ Ibcr VJ inch ilozm 1311309 § 1/1-«Let <- / g) ^ >~ H VCO thief Λ P3si<u/\3J 100, 300 thief vdHsMi 1311309 S C£) s >T > Λ 7 / \ , ¢. ! 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