Gray scale identification scanning method for smectic-phase liquid crystal display
A technology of liquid crystal display and scanning method, applied in static indicators, instruments, etc., can solve problems such as image grayscale loss, and achieve the effect of eliminating redundant time, solving the limitation of scanning speed, and solving time-consuming waste.
Inactive Publication Date: 2010-07-28
HALATION PHOTONICS CORP
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However, when displaying images with gray scales, reducing N will inevitably lead to a change in the number of pulse pairs ni (i is 1 to m-1) contained in each subfield, resulting in a loss of gray scale of the image
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[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0030] see Figure 2 to Figure 4 As shown, a scanning method for grayscale recognition of a smectic liquid crystal display, which includes an image grayscale recognition algorithm module and a driving waveform with grayscale recognition.
[0031] The data of the image to be displayed on the display screen is sequentially stored in a row unit in an image memory, and each data is assigned an address. Take a smectic liquid crystal display with 800 rows×600 columns as an example. The data of the image to be displayed, a total of 800×600, is sequentially stored in row units in an image memory containing at least 800×600=480,000 storage units, and each storage unit stores data of a pixel corresponding to an address. The data bit width stored in the storage unit represents the grayscale information of the corresponding pixel data. When the bit width...
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The invention discloses a gray scale identification scanning method for a smectic-phase liquid crystal display, which comprises an image gray scale identification algorithm module and a drive waveform with the gray scale identification, wherein the main body of the image gray scale identification algorithm module is a data comparator, the lowest gray scale information of the data in a row is firstly read before outputting the row scanning waveform in the drive waveform with the gray scale identification, a gray scale identification sub-field arrangement table is searched based on the gray scale information to obtain the invalid sub-field information of which the gray scales do not need to be displayed in the row, and pulse pairs contained in the invalid sub-fields are skipped and are not output in the process of outputting the drive waveform. The method adjusts the number of the driving pulse pairs contained in the drive waveform based on the minimum gray scale of the input image, thereby effectively shortening the scanning time and improving the image refreshing speed.
Description
technical field [0001] The invention relates to a smectic liquid crystal display technology, in particular to a gray scale identification scanning method for a smectic liquid crystal display. Background technique [0002] Liquid crystal display is one of the most promising flat panel display devices at present. Traditional liquid crystal displays are passive displays, that is, transmissive displays, which can only be displayed under the condition of an external backlight, but the power consumption of the backlight is the liquid crystal itself. More than hundreds of times the power consumption, very energy-consuming. With the development of liquid crystal technology, various liquid crystal materials emerge in an endless stream, among which the reflective liquid crystal that does not require a backlight has an absolute advantage due to its low power consumption characteristics. The smectic liquid crystal display in the Chinese utility model patent "a display control circuit" ...
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IPC IPC(8): G09G3/36
Inventor 夏兴隆孙刚王欢欢
Owner HALATION PHOTONICS CORP