# US 2014/0152532 A1 · Panel video system controller and lcd device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0152532 A1 - Document ID: US20140152532A1 - Status: Published application - Kind: A1 - Application number: 13/704,606 - Filed: 2012-11-15 - Published: 2014-06-05 - Earliest claimed: 2012-09-20 - Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd. - Inventors: Yinhung Chen; Liangchan Liao; Poshen Lin - Web page: https://patentgrep.com/patent/US20140152532A1 ## CPC - G09G 3/3611: {Control of matrices with row and column drivers} - G09G 2300/0408: Integration of the drivers onto the display substrate - 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 The present disclosure provides a panel video system controller and a liquid crystal display (LCD) device. The panel video system controller includes a timing control circuit and a video processing circuit, and the timing control circuit and the video processing circuit are integrated into a same integrated circuit. In research, data. connection between a back-end system of the LCD device such as television and the LCD panel is mainly achieved by a video processing, chip and the timing control circuit. In the present disclosure, the video processing chip in the back-end system of the LCD device and the timing control circuit in the LCD panel are integrated. On one hand, circuit integration level is increased, and assembly process is simplified. On the other hand, it is not needed to use additional data conversion interface between the back-end system of the LCD device and the LCD panel, thereby reducing the product development cycle, development cost, and assembly process. ## Claims ### Claim 1 A panel video system controller, comprising: a timing control circuit; a video processing circuit integrated with a same integrated circuit as the timing control circuit wherein the video processing circuit comprises a video processing module, the timing control circuit comprises a local dimming module, and an output end of the video processing module is directly coupled to the local dimming module; and a memory module coupled to the timing control circuit and the video processing circuit; wherein the video processing module comprises a video preprocessor connected with a data input end, a dynamic random access memory (DRAM) controller coupled with the video preprocessor, a video back processor coupled with the DRAM controller, a video enhancer coupled with the video back processor, a mixer coupled with the video enhancer, a dithering processor coupled with the mixer, and a first over drive module coupled with the dithering processor; wherein the first over drive module is directly coupled to the local dimming module of the timing control circuit, the DRAM controller is coupled to the memory module; wherein the timing control circuit comprises a gamma white tracking module coupled with the local dimming module, a second over drive module coupled with the gamma white tracking module, a timing controller coupled with the second over drive module, and a differential signal communication module coupled with the timing controller; the gamma white tracking module is coupled with the memory module; wherein the timing control circuit further comprises an I2C control module coupled with an external memory. ### Claim 2 A panel video system controller, comprising: a timing control circuit; and a video processing circuit, wherein the timing control circuit and the video processing circuit are integrated into a same integrated circuit. ### Claim 3 (depends on 2) The panel video system controller of claim 2, wherein the video processing circuit comprises a video processing module, the timing control circuit comprises a local dimming module, and an output end of the video processing module is directly coupled to the local dimming module. ### Claim 4 (depends on 2) The panel video system controller of claim 2, wherein the panel video system controller further comprises a. memory module, and the memory module is coupled to the timing control circuit and the video processing circuit. ### Claim 5 (depends on 2) The panel video system controller of claim 2, wherein the panel video system controller further comprises a memory module, and the memory module is coupled to the timing control circuit and the video processing circuit; the video processing circuit comprises a video processing module, the timing control circuit comprises a local dimming module, and an output end of the video processing module is directly coupled to the local dimming module. ### Claim 6 (depends on 5) The panel video system controller of claim 5, wherein the video processing module comprises a video preprocessor connected with a data input end, a dynamic random access memory (DRAM) controller coupled with the video preprocessor, a video back processor coupled with the DRAM controller, a video enhancer coupled with the video back processor, a mixer coupled with the video enhancer, a dithering processor coupled with the mixer, and a first over drive module coupled with the dithering processor; the first over drive module is directly coupled to the local dimming module of the timing control circuit. ### Claim 7 (depends on 6) The panel video system controller of claim 6, wherein the DRAM controller is coupled to the memory module. ### Claim 8 (depends on 5) The panel video system controller of claim 5, wherein the timing control circuit comprises a gamma white tracking module coupled with the local dimming module, a second over drive module coupled with the gamma white tracking module, a timing controller coupled with the second over drive module, and a differential signal communication module coupled with the timing controller; the gamma white tracking module is coupled with the memory module. ### Claim 9 (depends on 8) The panel video system controller of claim 8, wherein the timing, control circuit further comprises an I2C control module coupled with an external memory. ### Claim 10 A liquid crystal display (LCD) device, comprising: a panel video system controller, wherein the panel video system controller comprises a timing control circuit and a video processing circuit, the timing control circuit and the video processing circuit are integrated into a same integrated circuit. ### Claim 11 (depends on 10) The liquid crystal display (LCD) device of claim 10, wherein the video processing circuit comprises a video processing module, the timing control circuit comprises a local dimming module, and an output end of the video processing module is directly coupled to the local dimming module. ### Claim 12 (depends on 10) The liquid crystal display (LCD) device of claim 10, wherein the panel video system controller further comprises a memory module, and the memory module is coupled to the timing control circuit and the video processing circuit. ### Claim 13 (depends on 10) The liquid crystal display (LCD) device of claim 10, wherein the panel video system controller further comprises a memory module, and the memory module is coupled to the timing control circuit and the video processing circuit the video processing circuit comprises a video processing module, the timing control circuit comprises a local dimming module, and an output end of the video processing module is directly coupled to the local dimming module. ### Claim 14 (depends on 13) The liquid crystal display (LCD) device of claim 13, wherein the video processing module comprises a video preprocessor connected with a data input end, a dynamic random access memory (DRAM) controller coupled with the video preprocessor, a video back processor coupled with the DRAM controller, a video enhancer coupled with the video back processor, a mixer coupled with the video enhancer, a dithering processor coupled with the mixer, and a first over drive module coupled with the dithering processor; the first over drive module is directly coupled to the local dimming module of the timing control circuit. ### Claim 15 (depends on 14) The liquid crystal display (LCD) device of claim 14, wherein the DRAM controller is coupled to the memory module. ### Claim 16 (depends on 13) The liquid crystal display (LCD) device of claim 13, wherein the timing control circuit comprises a gamma white tracking module coupled with the local dimming module, a second over drive module coupled with the gamma white tracking module, a timing controller coupled with the second over drive module, and a differential signal communication module coupled with the timing controller; the gamma white tracking, module is coupled with the memory module. ### Claim 17 (depends on 16) The liquid crystal display (LCD) device of claim 16, wherein the timing control circuit further comprises an I2C control module coupled with an external memory. ### Claim 18 (depends on 10) The liquid crystal display (LCD) device of claim 10, wherein the LCD device comprises an LCD panel, and a drive circuit coupled with the LCD panel; the drive circuit comprises a control board connected with the LCD panel, a video circuit board connected with the control hoard, and a power supply circuit board supplying power to the video circuit board and the control board; the LCD panel video system controller is arranged in the video circuit board.