摘要:
The present invention discloses a REPEATED-SCAN driving method, which applies to a field sequential color liquid crystal display, wherein each sequential-color cycle of the multiplex-scan signal has at least two stages of scans to increase the luminous fluxes of all colors of backlights and bring closer the total amounts of fluxes, whereby is achieved higher color saturation and better flux uniformity between the rows. Further, the method of the present invention controls the backlights to form dark stages between the intervals respectively of two different colors of the backlights and controls the dark stage to coincide with a color-mixing interval, which is caused by response delay of liquid crystal, to prevent from color distortion caused by color mixing. Therefore, the present invention can generate the pure colors and the designed derived colors accurately.
摘要:
The present invention discloses a REPEATED-SCAN driving method, which applies to a field sequential color liquid crystal display, wherein each sequential-color cycle of the multiplex-scan signal has at least two stages of scans to increase the luminous fluxes of all colors of backlights and bring closer the total amounts of fluxes, whereby is achieved higher color saturation and better flux uniformity between the rows. Further, the method of the present invention controls the backlights to form dark stages between the intervals respectively of two different colors of the backlights and controls the dark stage to coincide with a color-mixing interval, which is caused by response delay of liquid crystal, to prevent from color distortion caused by color mixing. Therefore, the present invention can generate the pure colors and the designed derived colors accurately.
摘要:
The present invention discloses a color sequence offset modulation method and device, which modulates the colored backlights of a multi-color backlight source to have a dark interval in the time points of shifting the colored backlights and makes the dark interval coincide with the close delay interval caused by the delayed response of liquid crystal, whereby the latter colored backlight will not mix with the former colored backlight during the close delay interval, wherefore the present invention can avoid the color deviation caused by color mixing and can present the designed colors correctly.
摘要:
An image data bus comprises an input port, an output port, and an image register with two ends thereof respectively coupled to the output port and the input port. The image register connects with an LCD driver. A plurality of image data buses is cascaded via using a plurality of cascading signal cables to connect the output ports and the input ports of the image data buses. Image data is sequentially transposed in a first-in-first-out way and transferred from the output port of the front-stage image data bus to the input port of the rear-stage image data bus. The present invention can facilitate flexibly constructing different-size assembled LCD billboards. Further, the present invention can reduce the cables used in wiring an assembled LCD billboard and effectively lower material cost thereof.
摘要:
A method and apparatus for speeding up the reading speed of a sequential I/O device, such as a Charge Coupled Device, is disclosed. The method involves in providing normal clocks for reading selected pixels and dummy clocks for reading unselected pixels. Since dummy clocks are faster than normal clocks, therefore the total time for processing the document can be less than using clocks of uniform speed. The apparatus of the invention comprises: a clock control device for generating two transfer pulses &phgr;1 and &phgr;2 in response to a clock cycle. The transfer pulses &phgr;1 and &phgr;2 are input to a sequential I/O device. The signal charge generated from the sequential I/O device will then output to an AND converter to be converted into digital signals. If the digital signals are marked, they will be latched. If not, they will simply be ignored.
摘要:
A method for dynamically scanning an image is disclosed. The present invention substantially improves the quality of the image according to specific distribution of the gray levels. In one embodiment, an image is first scanned using a set of parameters to generate a first image. The compositional distribution of the first image is then analyzed. If a predetermined amount of the compositional distribution of the first image does not lie within a predetermined range, then at least one parameter is adjusted. Next, the image is secondly scanned using the adjusted set of parameters to generate a second image. Finally, the first image and the second image are combined or added to generate a composite image so that at least the predetermined amount of the compositional distribution lies within the predetermined range.