Patent number 8564521 is assigned to
The following quote was obtained by the news editors from the background information supplied by the inventors: "The present invention relates to a display device. More particularly, the present invention relates to a data processing device capable of improving a response speed of liquid crystal, a method of driving the data processing device, and a display device having the data processing device.
"A liquid crystal display device generally includes two display substrates and a liquid crystal layer interposed between the two display substrates. In such a liquid crystal display device, an electric field is applied to the liquid crystal layer and an intensity of the electric field is controlled so as to adjust a transmittance of light passing through the liquid crystal layer, thereby displaying desired images.
"As liquid crystal display devices have been widely used for display screens of televisions, as well as computers, realization of moving picture or video images in the liquid crystal display devices has been increasingly required. However, because conventional liquid crystal display devices present a low response speed, such video images may not be effectively realized in current liquid crystal display devices.
"More specifically, since liquid crystal molecules present a low response speed, a certain period of time is necessary to charge a liquid crystal capacitor with a target voltage (e.g., a voltage at which a desired luminance can be obtained). Such a time delay depends on a potential difference between the target voltage and a previous voltage, which has already been charged in the liquid crystal display device in a previous frame.
"However, if the potential difference between the target voltage and the previous voltage is large enough, application of the target voltage from a starting point may inhibit the liquid crystal capacitor from ever reaching the target voltage within a period of 1 H (e.g., within one frame period) during which a switching element is maintained in a turn-on state."
In addition to the background information obtained for this patent, VerticalNews journalists also obtained the inventor's summary information for this patent: "Therefore, the present invention provides a data processing device, which can improve a response speed of liquid crystal and reduce a number of memory elements.
"The present invention also provides a method suitable for driving the above data processing device.
"In addition, the present invention provides a display device having the above data processing device.
"In an exemplary embodiment of the present invention, the data processing device includes a memory, a first compensation section and a second compensation section. The memory outputs first compensated data based on first frame data. The first compensation section generates second compensated data based on the first compensated data and second frame data, while storing the second compensated data in the memory after the memory outputs the first compensated data. The second compensation section generates third compensated data based on the second frame data and the first compensated data.
"In another exemplary embodiment of the present invention, a method of driving the data processing device is provided as follows. The data processing device reads out the first compensated data based on the first frame data and receives the second frame data. Next, the data processing device generates the second compensated data based on the second frame data and the first compensated data, and stores the second compensated data. Then, the data processing device generates the third compensated data based on the second frame data and the first compensated data.
"In still another exemplary of the present invention, the display device includes a data processing section, a data driving section, a gate driving section and a display section. The data processing section generates the second compensated data based on the first compensated data obtained by compensation of first frame data and on the second frame data. Also, the data processing section generates the third compensated data based on the second frame data and the first compensated data. The data driving section outputs a data voltage corresponding to the third compensated data in response to data control signals. The gate driving section outputs a gate voltage in response to gate control signals. The display section displays images in response to the data voltage and the gate voltage.
"According to the above, the third compensated data is generated based on the first compensated data obtained by compensating the first frame data and the second frame data, so that the response time of liquid crystals can be improved, while reducing the number of memories."
URL and more information on this patent, see: Cho, Hyun-Sang. Data Processing Device, Method of Driving the Same and Display Device Having the Same. U.S. Patent Number 8564521, filed
Keywords for this news article include: Information Technology,
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