# US 2014/0192032 A1 · Overdriving control method with image compression control and related circuit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0192032 A1 - Document ID: US20140192032A1 - Status: Published application - Kind: A1 - Application number: 14/149,834 - Filed: 2014-01-08 - Published: 2014-07-10 - Earliest claimed: 2013-01-09 - Assignees: Realtek Semiconductor Corp. - Applicants: Realtek Semiconductor Corp. - Inventors: Cheng-Hsin Chang - Web page: https://patentgrep.com/patent/US20140192032A1 ## CPC - G09G 3/3648: {using an active matrix (G09G3/367 - G09G3/3696 take precedence)} - G09G 2320/0252: Improving the response speed - G09G 2320/0613: The adjustment depending on the type of the information to be displayed - G09G 2340/02: Handling of images in compressed format, e.g. JPEG, MPEG - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) ## Abstract An overdriving control method includes: receiving an input image; determining whether the input image is a moving image or a still image, and generating a determining signal; dynamically using image compression process according to the determining signal; and dynamically using overdriving process according to the determining signal. An overdriving control circuit includes a receiving unit, arranged for outputting an input image; a determining unit, arranged for generating a determining signal by determining whether the input image is a moving image or a still image; an image compression processing unit, arranged for dynamically performing image compression process upon the input image according to the determining signal, and generating an image compression processing unit output; and an overdriving processing unit, arranged for dynamically performing an overdriving process upon the image compression processing unit output according to the determining signal, and generating an overdriving processing unit output. ## Claims ### Claim 1 An overdriving control method, comprising: receiving an input image; determining whether the input image is a moving image or a still image and generating a determining signal, wherein the determining signal indicates the input image is the moving image or the still image; using an image compression process dynamically according to the determining signal; and using an overdriving process dynamically according to the determining signal. ### Claim 2 (depends on 1) The overdriving control method of claim 1, wherein the step of determining whether the input image is a moving image or a still image comprises: when the input image is considered still, determining the input image as the still image; and when the input image is not considered still, determining the input image as the moving image. ### Claim 3 (depends on 1) The overdriving control method of claim 1, wherein the step of determining whether the input image is a moving image or a still image comprises: when the input image has an associated motion which is less than a predetermined threshold, determining the input image as the still image; and when the input image has an associated motion which is not less than a predetermined threshold, determining the input image as the moving image. ### Claim 4 (depends on 1) The overdriving control method of claim 1, wherein the step of using the image compression process dynamically according to the determining signal comprises: according to the determining signal, when the input image is the moving image, performing the image compression process upon the input image to generate a compressed image; and according to the determining signal, when the input image is the still image, not performing the image compression process upon the input image. ### Claim 5 (depends on 4) The overdriving control method of claim 4, wherein the step of using the overdriving process dynamically according to the determining signal comprises: according to the determining signal, when the input image is the moving image, performing the overdriving process upon the compressed image; and according to the determining signal, when the input image is the still image, not performing the overdriving process upon the input image. ### Claim 6 (depends on 4) The overdriving control method of claim 4, wherein the step of using the overdriving process dynamically according to the determining signal comprises: according to the determining signal, when the input image is the moving image, performing the overdriving process with a first compression rate upon the compressed image; and according to the determining signal, when the input image is the still image, performing the overdriving process with a second compression rate upon the input image; wherein the first compression rate is greater than the second compression rate. ### Claim 7 (depends on 1) The overdriving control method of claim 1, wherein the step of using the image compression process dynamically according to the determining signal comprises: according to the determining signal, when the input image is the moving image, performing the image compression process with a first compression rate upon the input image to generate a first compressed image; and according to the determining signal, when the input image is the still image, performing the image compression process with a second compression rate upon the input image to generate a second compressed image; wherein the first compression rate is less than the second compression rate. ### Claim 8 (depends on 7) The overdriving control method of claim 7, wherein the step of using the overdriving process dynamically according to the determining signal comprises: according to the determining signal, when the input image is the moving image, performing the overdriving process upon the first compressed image; and according to the determining signal, when the input image is the still image, not performing the overdriving process upon the second compressed image. ### Claim 9 (depends on 7) The overdriving control method of claim 7, wherein the step of using the overdriving process dynamically according to the determining signal comprises: according to the determining signal, when the input image is the moving image, performing the overdriving process with a third compression rate upon the first compressed image; and according to the determining signal, when the input image is the moving image, performing the overdriving process with a fourth compression rate upon the second compressed image; wherein the third compression rate is greater than the fourth compression rate. ### Claim 10 (depends on 1) The overdriving control method of claim 1, wherein according to the determining signal, when the image compression process and the overdriving process both need to be turned on from the off state, the image compression process and the overdriving process are turned on sequentially. ### Claim 11 (depends on 1) The overdriving control method of claim 1, wherein according to the determining signal, when the image compression process and the overdriving process both need to be turned off from the on state, the overdriving process and the image compression process are turned off sequentially. ### Claim 12 An overdriving control circuit, comprising: a receiving unit, arranged for receiving an input image; a determining unit, coupled to the receiving unit, arranged for determining whether the input image is a moving image or a still image and generating a determining signal, wherein the determining signal indicates the input image is the moving image or the still image; an image compression processing unit, coupled to the receiving unit and the determining unit respectively, arranged for performing an image compression process dynamically upon the input image according to the determining signal to generate an image compression processing unit output; and an overdriving processing unit, coupled to the image compression processing unit and the determining unit, arranged for performing an overdriving process dynamically upon the image compression processing unit output according to the determining signal to generate an overdriving processing unit output. ### Claim 13 (depends on 12) The overdriving control circuit of claim 12, wherein when the input image is considered still, the determining unit determines the input image as the still image; and when the input image is not considered still, the determining unit determines the input image as the moving image. ### Claim 14 (depends on 12) The overdriving control circuit of claim 12, wherein when the input image has a motion which is less than a predetermined threshold, the determining unit determines the input image as the still image; and when the input image has a motion which is not less than a predetermined threshold, the determining unit determines the input image as the moving image. ### Claim 15 (depends on 12) The overdriving control circuit of claim 12, wherein according to the determining signal, when the input image is the moving image, the image compression processing unit performs the image compression process upon the input image to generate a compressed image, and outputs the compressed image as the image compression processing unit output; and according to the determining signal, when the input image is the still image, the image compression processing unit does not perform the image compression process upon the input image, and directly outputs the input image as the image compression processing unit output. ### Claim 16 (depends on 15) The overdriving control circuit of claim 15, wherein according to the determining signal, when the input image is the moving image, the overdriving processing unit performs the overdriving process upon the compressed image; and according to the determining signal, when the input image is the still image, the overdriving processing unit does not perform the overdriving process upon the input image. ### Claim 17 (depends on 15) The overdriving control circuit of claim 15, wherein according to the determining signal, when the input image is the moving image, the overdriving processing unit performs the overdriving process with a first compression rate upon the compressed image; and according to the determining signal, when the input image is the still image, the overdriving processing unit performs the overdriving process with a second compression rate upon the input image, wherein the first compression rate is greater than the second compression rate. ### Claim 18 (depends on 12) The overdriving control circuit of claim 12, wherein according to the determining signal, when the input image is the moving image, the image compression processing unit performs the image compression process with a first compression rate upon the input image to generate a first compressed image, and outputs the first compressed image as the image compression processing unit output; and according to the determining signal, when the input image is the still image, the image compression processing unit performs the image compression process with a second compression rate upon the input image to generate a second compressed image, and outputs the second compressed image as the image compression processing unit output, wherein the first compression rate is less than the second compression rate. ### Claim 19 (depends on 18) The overdriving control circuit of claim 18, wherein according to the determining signal, when the input image is the moving image, the overdriving processing unit performs the overdriving process upon the first compressed image; and according to the determining signal, when the input image is the still image, the overdriving processing unit does not perform the overdriving process upon the second compressed image. ### Claim 20 (depends on 18) The overdriving control circuit of claim 18, wherein according to the determining signal, when the input image is the moving image, the overdriving processing unit performs the overdriving process with a third compression rate upon the first compressed image; and according to the determining signal, when the input image is the moving image, the overdriving processing unit performs the overdriving process with a fourth compression rate upon the second compressed image, wherein the third compression rate is greater than the fourth compression rate. ### Claim 21 (depends on 12) The overdriving control circuit of claim 12, wherein according to the determining signal, when the image compression process and the overdriving process both need to be turned on from the off state, the image compression process and the overdriving process are turned on sequentially. ### Claim 22 (depends on 12) The overdriving control circuit of claim 12, wherein according to the determining signal, when the image compression process and the overdriving process both need to be turned off from the on state, the overdriving process and the image compression process are turned off sequentially.