TWI236650B - Dynamic overdrive device and method - Google Patents

Abstract

The present invention provides a dynamic overdrive device, which can dynamically adjust a driving voltage applied on a graphic processing unit (GPU) or a central processing unit (CPU) of a liquid crystal display, so as to enhance the display effect on the liquid crystal display for a dynamic image. The device employs a driving path selection unit to provide the user to specify the driving path with the operation interface, and further influence the variation of driving voltage signal applied on the graphic processing unit in a dynamic overdrive manner.

Description

1236650 V. Description of the Invention (Technical Field) The present invention relates to a method for accelerating driving, especially a method for dynamically adjusting and accelerating driving a liquid crystal display based on the surrounding atmospheric environment. [Previous Technology] Due to the thinness, lightness and shortness of liquid crystal displays In recent years, the liquid crystal display has gradually replaced the CRT display. However, since the parameters related to the display effect such as the grayscale response speed of the liquid crystal display and the surrounding atmospheric environment such as temperature where the display is located are closely related, in order to pursue The presentation of higher-quality display effects must also take into account the user's environment. In general, under the same driving method, if the temperature in the surrounding atmosphere decreases by one degree, the grayscale response speed will be reduced. 1 ms slower. Please refer to Figure 1. Figure 1 is a schematic diagram of the original drive path. As shown in Figure 1, the original drive path at T1 or T2 temperature refers to the initial drive voltage to the target drive voltage The driving voltage varies between T1 and T1. The original drive path reached the target drive voltage at 11 hours, while the original drive path at T2 temperature reached the target drive voltage at t2 time greater than t1 time. Because of this, the same liquid crystal display is easy Affected by the surrounding atmospheric environment (especially temperature)

1236650 V. Description of the invention (2) The gray-scale image speed makes the display effect of dynamic images with great difference at T1 and T2 temperature. From the above description, it is believed that it is not difficult to understand that the ambient atmospheric environment in which a liquid crystal display is located is closely related to its display effect. Therefore, when driving the liquid crystal in a liquid crystal display, it is necessary to take into account the ambient atmospheric factors. Currently in the industry, LG Philips uses the "method and apparatus for driving liquid crystal display" as disclosed in U.S. Patent No. US2003 / 0 1 07546 published on June 12, 2003. The surrounding environmental factors are taken into consideration, and the patent is referred to as 0107546 below. The 0 1 07546 patent mainly uses a temperature sensor to learn the temperature of the liquid crystal display, and based on this temperature, obtains an appropriate correction method in a pre-established correspondence table (ULT) to correct the output signal of the dynamic image. In addition, Samsung uses the "liquid crystal display and a driving method thereof", such as US Patent No. US2003 / 00 98839 published on May 29, 2003, which will affect the surrounding environmental factors Considering this, the patent is referred to as No. 0098839. This patent No. 0098839 is mainly used to correct the output signal of dynamic images by correcting parameters related to temperature, image quality determined by the user, and the environment where the display is located.

1236650 V. Description of Invention (3). Both of the above-mentioned schemes in the industry need to obtain the temperature of the liquid crystal display through the temperature sensor before the output of the modified dynamic image can be performed. However, this method not only needs to increase the cost of the temperature sensor, but also a method that relies too much on temperature changes and lacks flexibility. After all, the display effect of the liquid crystal display is not entirely related to temperature changes. [Content] The main purpose of the present invention is to provide a dynamic acceleration driving device and method, which can dynamically adjust the acceleration driving liquid crystal display without knowing the temperature of the liquid crystal display, thereby improving the display effect of dynamic images. Based on the above purpose, the dynamic acceleration driving device disclosed in the present invention includes a driving path selection unit, and the driving path selection unit is used to enable a user to specify the most appropriate driving path through an operation interface, and then dynamically The way of adjusting the acceleration driving affects the change of the driving voltage signal applied to the graphics processing chip. The advantages and spirit of the present invention can be further understood through the following detailed description of the invention and the accompanying drawings.

1236650 V. Description of the invention (4) [Implementation method] Please refer to FIG. 2, which is the schematic diagram of the most suitable driving path of the present invention. As shown in Fig. 2, the most suitable driving path at T1 temperature is the original driving path at T1 temperature to dynamically adjust the acceleration driving method. The purpose is to make the time required to reach the target driving voltage 13 by using the most suitable driving path at the same temperature T1 less than the time 11 required for the original driving path. For the same reason, if the temperature in the ambient air environment where the liquid crystal display is located is T2, the present invention will similarly adopt the method of dynamically adjusting the acceleration driving to reach the target driving voltage at the temperature T2 at time t3. Although, the obtaining of the most suitable driving path mentioned in the present invention is mainly closely related to the temperature in the surrounding atmospheric environment. However, it would not be flexible enough to simply require user input or otherwise obtain their temperature or other ambient atmospheric conditions. Therefore, the present invention provides a user's reference to the motion images before and after the driving path generated by the dynamic adjustment acceleration driving method provided by an operation interface, so that the user can use the motion images before the adjustment and the motion images after the adjustment ( It can be two moving images or more) and specify the most suitable drive path. Therefore, the device and method provided by the present invention not only do not need to know the surrounding atmospheric environmental conditions where the liquid crystal display is located, but also can find the most appropriate driving path more appropriately after interacting with the user, thereby improving the display of dynamic images. effect. in

V. Description of Invention (6) 14. Therefore, the driving path of the driving path of the user's 19 seasons is determined by the atmospheric environment; the driving of several strokes is based on the use of the moving image, that is, the row key 34, for image use. The driver 1 9 decides the driving path after the & crystal display 1 2 path. Therefore, the tuning is driven by the tuning path to set a predetermined path. And adjust the user 1 9 for selecting the path based on the setting of the entire drive used to determine the command. The path depends on the spring test. The dynamic interface is selected after the test. 18 The drive area of the appropriate system value before adjustment. 3 2 series Based on the JIS program in spring and middle, summer and autumn correspond to 30 images in the circumferential image area. The driving path is provided by the main dynamic image provided by the driving path and the driving path. All of them use summer, autumn, and moving paths as shown in FIG. 3. The above meanings, and the driving atmospheric and seasonal environment of the road and winter include at least tuning, dynamic and unobtrusive information after adjustment. After performing the adjustment of the motion picture, the most appropriate adjustment is performed before the most appropriate driving. Because the motion picture before the adjustment is presented at the T1 temperature, the original driving motion picture presents the image system. 18 By choosing to adjust the driving area 32 out of adjustment commands. However, due to the fall of autumn (ie, T1 temperature), the “summer” driving path is not appropriate. The image observed from the test moving image area 30 is based on the path shown in Figure 2. For example, after adjustment, based on the summer of the user 19 on the operation interface, the driver ’s route is the season that the user 19 was previously selected. Therefore, the user 19 can, based on this “summer "Driving Road 1236650 V. Explanation of the Invention (7) ^ ~ The adjusted dynamic image and the adjustment effect displayed by the diameter are not inferior or even worse. For the image, compared to the moving path, the user 19 sends out the "autumn" driving path in the operating interface 18 again, which is more appropriate for the "autumn" driving path in the f18; the $ f adjusting drive, because the proper driving path is selected , ° due to the whole command. At this time, the image area 30 is observed. Based on the "Autumn: Drive test dynamic adjustment dynamic image compared with the pre-adjustment dynamic image, 'the display is better, in other words, this" autumn "driving path is significantly higher than T1 temperature. Download the most appropriate drive path. ^ y As shown in FIG. 2, the most suitable driving path is set to the original driving path. The user U sets the driving path used by the crystal display 12 to this end, and obtains the liquid path. Next, while introducing another dynamic adjustment and acceleration drive second action, the following will first explain how the two front paths stored in the drive path unit 14 are defined by the drive path determination program. The driving path determination program of the present invention is to first measure an image having a time interval in front of and behind a frame j, such as a pixel brightness parameter value, in a moving image displayed on the liquid scale 12. The value of 9 is different, and the path of the liquid crystal display relative to the temperature is known. In other words, the surrounding environment of the analog liquid crystal display 12 is spring, summer, autumn, and winter, and the original gas of the plant gas shown in Figure 2 in autumn (at T1 temperature) and winter (at T2 temperature) is found. Moving path. Ask for a drive

! 236650 V. Description of the invention (8) f After obtaining the original driving paths of the surrounding atmospheric environment preset: 捸 Recalculated relative to the driving paths of the surrounding atmospheric environment = Improve the dynamic image in the surrounding atmospheric environment. The driving path of the two-member display effect on the LCD, in other words, recalculate the most suitable driving path in the autumn (T1 temperature) as shown in Figure 2. In particular, since the seasonal climate in each region is different, the driving paths stored in the driving path unit 14 can also be defined in advance for the four seasons in each different region.

"Refer to Fig. 5" Fig. 5 is an illustration of the second method of dynamically adjusting the acceleration drive of the present invention. As shown in FIG. 5, the second dynamic adjustment of the acceleration driving method of the present invention is more than the second dynamic adjustment of the acceleration driving method shown in FIG. Therefore, the first and the first dynamic adjustment of the acceleration driving method is only that the user 19 uses different adjustment driving areas to issue an adjustment command, but similarly, a new driving path is also generated based on this adjustment command, and the dynamic image is tested The adjusted dynamic image presented in zone 30 is based on the drive path produced by this. The following will explain the possibility of adjusting the drive areas 32, 40, and 42 and how the adjustment drive areas 40 and 42 affect the adjusted dynamic image.

As shown in FIG. 5, the adjustment drive area 32 does not have to exist simultaneously with the adjustment drive areas 40 and 4 = at the same time on the operation interface 18. The adjustment drive area 40 and the drive paths generated by each other can also be said, Influence each other

Page 12 1236650 V. Description of the invention (9) Presentation of the adjusted dynamic image. Of course, the adjustment driving area 40 can exist on the operation interface alone, without affecting the driving paths produced by each other, and without affecting the adjustment of the dynamic image after adjustment. In the present invention, the drive added to the driving pen is adjusted to select a type of dynamic adjustment. The drive-through operation is provided to adjust the second speed drive. The speed drive path is a single-action path. One of the adjustment acceleration areas is 40. The biggest difference from the first method of moving the bear is that the second method of moving ^ does not need to determine the process through the driving path ^ 疋 14 defines the complex number based on the surrounding atmospheric environment in advance and then drives it through the adjustment on the operation interface 18 Zone 32 drives the path to issue an adjustment command. The second-speed driving method is to increase / decrease the adjustment command on the operation interface and add the adjustment drive area 42 through the input parameter value. In addition, the 'adjustment drive area 40 can be adjusted with the adjustment drive area. 32 cooperates to make the adjustment = moving area 40 affects the driving path generated by adjusting the driving area 32, in other words: saying 'in this case' adjusting the driving area 4 〇 can slightly affect the driving generated by the entire driving area 32 Path to make the perfect whole. = As mentioned above, the dynamic acceleration driving device provided by the present invention and the '1236650 which can adjust the acceleration driving through the two dynamic adjustments disclosed above can be dynamically and dynamically matched. Adjust the speed to drive the LCD monitor to improve the display effect of moving images. Compared with the technical contents disclosed in the prior art patents 0 1 07546 and 0098839, the present invention does not require a temperature sensor. Instead, the pre-adjustment motion image and the post-adjustment motion image are provided in the test motion image area 30. Dynamic image, and let the user specify the most appropriate driving path. Therefore, it can be said that the dynamic acceleration driving device and method disclosed in the present invention have not only considered the influence of temperature, but also considered any factors that will affect the display effect of the liquid crystal display, and dynamically adjust and accelerate the liquid crystal display to improve the dynamic image. display effect. With the above detailed description of the preferred embodiments, it is hoped that the features and spirit of the present invention may be described more clearly, rather than limiting the scope of the present invention with the preferred embodiments disclosed above. On the contrary, the purpose is to cover various changes and equivalent arrangements within the scope of the patents to be applied for in the present invention.

Page 14 1236650 Brief description of the drawings Figure 1 is a schematic diagram of the original drive path. Figure 2 is a schematic diagram of the most suitable driving path of the present invention. FIG. 3 is a schematic diagram of a driving device and a liquid crystal display of the present invention. FIG. 4 is a schematic diagram of a first dynamic adjustment of the acceleration driving method of the present invention. FIG. 5 is a schematic diagram of a second method for dynamically adjusting the acceleration driving of the present invention. Explanation of graphical symbols 1 0 Dynamic acceleration driving device 1 2 LCD display 1 3 Graphics processing chip 1 4 Drive path unit 16 Drive path selection unit 1 8 Operation interface 19 User 3 0 Test dynamic image area 32, 40, 42 Adjustment Drive area 34 execution key

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Claims (1)

1236650 VI. Scope of Patent Application 9. A dynamic overdrive driving method, which improves the display of a dynamic image on the liquid crystal display by dynamically adjusting a driving voltage applied to a graphics processing chip (GPU) of a liquid crystal display. Effectively, the method at least includes: designating a most appropriate driving path in a manner of dynamically adjusting the acceleration driving, and then affecting a change in the driving voltage signal applied to the graphics processing chip. 10. The dynamic acceleration driving method as described in item 9 of the scope of the patent application, wherein a driving path determination procedure is based on a surrounding atmospheric environment and a plurality of driving paths corresponding to the surrounding atmospheric environment are defined in advance. 11. The dynamic acceleration driving method according to item 9 of the scope of patent application, wherein the driving path refers to a driving voltage change from an initial driving voltage to a target driving voltage. 12. The dynamic acceleration driving method as described in item 10 of the scope of patent application, wherein the driving path is defined by a driving path determining program, and the driving path determining program includes the following steps: Page 19