# US 2010/0165222 A1 · Liquid crystal display apparatus and displaying method thereof for compensating image signals > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0165222 A1 - Document ID: US20100165222A1 - Status: Published application - Kind: A1 - Application number: 12/489,527 - Filed: 2009-06-23 - Published: 2010-07-01 - Earliest claimed: 2008-12-26 - Assignees: Samsung Electronics Co., Ltd. - Inventors: Kyoung-oh Choi - Web page: https://patentgrep.com/patent/US20100165222A1 ## CPC - G09G 3/003: {to produce spatial visual effects} - G09G 3/3648: {using an active matrix (G09G3/367 - G09G3/3696 take precedence)} - H04N 13/341: using temporal multiplexing - G09G 3/001: {using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background (slide projectors per se G03B23/00 = 42 HP)} - G09G 2320/0252: Improving the response speed - G09G 2320/0261: in the context of movement of objects on the screen or movement of the observer relative to the screen - G09G 2320/0285: using tables for spatial correction of display data - G09G 2340/16: Determination of a pixel data signal depending on the signal applied in the previous frame - H04N 13/361: Reproducing mixed stereoscopic images; Reproducing mixed monoscopic and stereoscopic images, e.g. a stereoscopic image overlay window on a monoscopic image background - 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) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract Apparatuses and methods consistent with the present invention relate to a liquid crystal display (LCD) apparatus and a displaying method thereof. A liquid crystal display (LCD) apparatus includes a display unit to which image signals are sequentially scanned; and an image processing unit which compensates the image signals to have different compensation levels according to points in time when they are scanned to the display unit, using a previous frame image signal, a current frame image signal and a plurality of compensation tables, and outputs the compensated image signals to the display unit as the current frame. Thus, the present invention provides a liquid crystal display (LCD) apparatus improved in response speed and a displaying method thereof. ## Claims ### Claim 1 A liquid crystal display (LCD) apparatus, comprising: a display unit to which a plurality of image signals are sequentially scanned; and an image processing unit which compensates the plurality of image signals to have different compensation levels according to points in time when the plurality of image signals are scanned to the display unit, using a previous frame image signal, a current frame image signal, and a plurality of compensation tables, and outputs the compensated plurality of image signals to the display unit as the current frame. ### Claim 2 (depends on 1) The LCD apparatus according to claim 1, wherein while a frame image signal is being scanned, the compensation levels become larger as the scanning points are later in time. ### Claim 3 (depends on 1) The LCD apparatus according to claim 1, wherein each of the compensation tables comprises a dynamic capacitance compensation table. ### Claim 4 (depends on 1) The LCD apparatus according to claim 1, wherein each of the plurality of image signals comprises a left eye image signal and a right eye image signal; and the image processing unit compensates the left eye image signal and the right eye image signal and outputs the compensated right image signal and the compensated left eye image signal alternately to the display unit. ### Claim 5 (depends on 4) The LCD apparatus of claim 4, further comprising a signal transmitting unit which outputs a control signal alternately to open external shutter glasses. ### Claim 6 (depends on 5) The LCD apparatus according to claim 5, wherein a frame has an image scanning period during which at least one of the plurality of image signals is scanned and a blanking period during which at least one of the scanned image signals is maintained, and the control signal opens the shutter glasses for the blanking period. ### Claim 7 (depends on 1) The LCD apparatus according to claim 1, further comprising a storage unit which stores the plurality of compensation tables therein. ### Claim 8 (depends on 1) The LCD apparatus according to claim 1, wherein the plurality of compensation tables comprise a first compensation table corresponding to a first spot and a second compensation table corresponding to a second spot, which is different from the first spot, and the image processing unit operates an interpolation value based on the first and the second compensation tables, and compensates at least one of the plurality of image signals to be scanned between the first and the second spots using the interpolation value. ### Claim 9 A liquid crystal display (LCD) apparatus, comprising: a liquid crystal panel which comprises a liquid crystal layer, to which a plurality of image signals are sequentially scanned; a storage unit which stores a plurality of compensation tables therein, for compensating a response speed of a liquid crystal layer by a plurality of different compensation levels; and an image processing unit which compensates at least one of the plurality of image signals, using at least one of the plurality of compensation tables whose compensation level is larger with respect to the at least one of the plurality of image signals scanned later in time to the liquid crystal panel, and outputs at least one of the compensated image signals to the liquid crystal panel. ### Claim 10 A displaying method of a liquid crystal display (LCD) apparatus comprising a display unit, comprising: receiving a previous frame image signal and a current frame image signal; compensating a plurality of image signals to have different compensation levels according to points in time when the plurality of image signals are scanned to the display unit, using the previous frame image signal, the current frame image signal, and a plurality of compensation tables; and scanning the compensated image signals sequentially to the display unit as a current frame. ### Claim 11 (depends on 10) The displaying method according to claim 10, wherein while the plurality of image signals are being scanned, the compensation levels become larger as the scanning points are later in time. ### Claim 12 (depends on 10) The displaying method according to claim 10, wherein the compensation tables each comprises a dynamic capacitance compensation table. ### Claim 13 (depends on 10) The displaying method according to claim 10, wherein the plurality of compensation tables comprises a first compensation table corresponding to a first spot and a second compensation table corresponding to a second spot, which is different from the first spot, wherein the compensating the plurality of image signals comprises: operating an interpolation value based on the first and the second compensation tables; and compensating the plurality of image signals to be scanned between the first and the second spots, using the interpolation value. ### Claim 14 (depends on 10) The displaying method according to claim 10, wherein the compensated image signals comprise a left eye image signal and a right eye image signal; and the left eye image signal and the right eye image signal are alternately displayed to the display unit. ### Claim 15 (depends on 14) The displaying method according to claim 14, wherein a frame comprises an image scanning period during which the plurality of image signals are being scanned, and a blanking period during which the scanned plurality of image signals are being maintained, further comprising outputting a control signal to open alternately external shutter glasses for the blanking period. ### Claim 16 (depends on 4) The LCD apparatus of claim 4, further comprising a signal transmitting unit which outputs a control signal alternately to close external shutter glasses.