LIQUID CRYSTAL DISPLAY, LIQUID CRYSTAL DISPLAY MODULE, AND METHOD OF DRIVING LIQUID CRYSTAL DISPLAY

• Main Authors: ASANO MITSUYASU, FURUKAWA TOKUMASA, HIRAMATSU TAKESHI, KATSU YOSHIHIRO, INADA TETSUJI, MURAKAMI ICHIRO
• Format: Patent
• Language: English
• Published: 28.05.2009
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CRYPTOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DISPLAY; EDUCATION; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; SEALS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To provide a liquid crystal display capable of improving image quality of a display image when performing partial lighting operations by a light source section. SOLUTION: A flare countermeasure correction section 62 determines, based on an image signal D0, whether a condition is satisfied such that a partial display region corresponding to the partial lighting section 4 includes a low-luminance region in the periphery of a high-luminance region. When it is determined that the above condition is satisfied, the flare countermeasure correction section 62 corrects the image signal D0 in the low-luminance region in the following manner. On a condition that the partial lighting section 4 corresponding to the partial display region satisfying the condition has a luminous energy (a set luminance BLpix) determined by a backlight control section 12, the correction of the image signal D0 in the low-luminance region is performed so that the display luminance level of the low-luminance region of the partial display region results in approximately equal to the display luminance level under a maximum luminous energy (a maximum luminance BLmax) of the partial lighting section 4 corresponding to the partial display region. Then, display driving in the low-luminance region is performed based on the corrected image signal D1. COPYRIGHT: (C)2009,JPO&INPIT