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    • 5. 发明授权
    • Liquid-crystal display device
    • 液晶显示装置
    • US09007287B2
    • 2015-04-14
    • US13698304
    • 2011-05-16
    • Masae KitayamaFumikazu Shimoshikiryoh
    • Masae KitayamaFumikazu Shimoshikiryoh
    • G09G3/36G09G5/10G09G3/00H04N13/04G09G3/34
    • G09G3/3614G09G3/003G09G3/342G09G2300/0447G09G2300/0465G09G2310/0218G09G2310/0221G09G2310/0237G09G2310/024G09G2320/0209G09G2320/0219G09G2320/0223G09G2320/0233G09G2320/0247G09G2320/0252G09G2340/0435G09G2340/10G09G2340/16H04N13/337H04N13/341H04N13/398
    • A liquid crystal display device of the present invention has a vertical scanning period in which the polarity of a display signal is positive and a vertical scanning period in which the polarity of a display signal is negative. When a pair of successive two vertical scanning periods is constituted by a first vertical scanning period and a second vertical scanning period, and when a target gradation level to be displayed in the first vertical scanning period is GL1, and a target gradation level to be displayed in the second vertical scanning period immediately after the first vertical scanning period is GL2, GL1 and GL2 being integers of 0 or more representing gradation levels, the liquid crystal display device includes a circuit (124) capable of supplying a display voltage corresponding to a gradation level to a pixel in the second vertical scanning period, the gradation level being expressed by GL2OD which satisfies a condition where |GL2OD-GL1| is larger than |GL2-GL1|, in the case where GL2 is different from GL1. The value of GL2OD when the polarity in the first vertical scanning period is positive and the polarity in the second vertical scanning period is negative is different from the value of GL2OD when the polarity in the first vertical scanning period is negative and the polarity in the second vertical scanning period is positive.
    • 本发明的液晶显示装置具有显示信号的极性为正的垂直扫描期间和显示信号的极性为负的垂直扫描期间。 当一对连续的两个垂直扫描周期由第一垂直扫描周期和第二垂直扫描周期构成时,并且当要在第一垂直扫描周期中显示的目标灰度级为GL1时,以及要显示的目标灰度级 在第一垂直扫描周期之后的第二垂直扫描期间是GL2,GL1和GL2是表示灰度级的0以上的整数,液晶显示装置包括能够提供与灰度对应的显示电压的电路(124) 在第二垂直扫描期间的像素级别,灰度级由GL2OD表示,满足条件| GL2OD-GL1 | 大于| GL2-GL1 |,在GL2与GL1不同的情况下。 当第一垂直扫描期间的极性为正,并且第二垂直扫描期间的极性为负时,GL2OD的值与第一垂直扫描期间的极性为负值时的GL2OD的值不同,第二垂直扫描期间的极性 垂直扫描周期为正。
    • 6. 发明授权
    • Liquid crystal display device, television receiver, and display method for liquid crystal display device
    • 液晶显示装置,电视接收机以及液晶显示装置的显示方法
    • US08976096B2
    • 2015-03-10
    • US13511972
    • 2010-09-07
    • Masae KawabataFumikazu ShimoshikiryohKentaroh Irie
    • Masae KawabataFumikazu ShimoshikiryohKentaroh Irie
    • G09G3/36G09G3/20
    • G09G3/2018G09G3/2022G09G3/2074G09G3/36G09G3/3607G09G2300/0439G09G2300/0443G09G2300/0478G09G2320/0247G09G2320/0285
    • Provided is a liquid crystal display device which displays each halftone by changing the luminance of pixels during a cycle (F1-F8) composed of a first term (F1-F2), a second term (F3-F4), a third term (F5-F6), and a fourth term (F7-F8). The liquid crystal display device includes: a type 1 pixel, which luminance level rises during the first term, rises or stays on hold during the second term, decays during the third term, and decays or stays on hold during the fourth term; a type 2 pixel, which luminance level decays during the first term, decays or stays on hold during the second term, rises during the third term, and rises or stays on hold during the fourth term; a type 3 pixel, which luminance level rises or stays on hold during the first term, decays during the second term, decays or stays on hold during the third term, and rises during the fourth term; a type 4 pixel, which luminance level decays or stays on hold during the first term, rises during the second term, rises or stays on hold during the third term, and decays during the fourth term to continuously display the same halftone.
    • 提供一种液晶显示装置,其通过在由第一项(F1-F2),第二项(F3-F4),第三项(F5-F4)组成的循环期间(F1-F8)改变像素的亮度来显示每个半色调 -F6)和第四项(F7-F8)。 液晶显示装置包括:在第一项期间亮度级别上升的类型1像素在第二期期间上升或保持保持,在第三期期间衰减,并且在第四期期间衰减或保持保持; 第二项期间的亮度级别在第一项期间衰减,在第二项期间衰减或保持保持的类型2像素在第三期期间上升,并且在第四期期间上升或保持保持; 在第一项期间亮度水平升高或保持保持的3型像素,在第二期期间衰减,在第三期期间衰减或保持保持,并且在第四期期间上升; 在第一项期间亮度级别衰减或保持保持的类型4像素在第二项期间上升,在第三项期间上升或保持保持,并且在第四项期间衰减以连续显示相同的半色调。
    • 7. 发明授权
    • Liquid crystal display device, method for driving liquid crystal display device, and television receiver
    • 液晶显示装置,液晶显示装置的驱动方法以及电视接收机
    • US08743047B2
    • 2014-06-03
    • US12998731
    • 2009-10-05
    • Masae KawabataFumikazu Shimoshikiryoh
    • Masae KawabataFumikazu Shimoshikiryoh
    • G09G3/36G09G5/00G06F3/038G09G5/10
    • G09G3/3666G09G3/3614G09G2300/0413G09G2310/0224G09G2310/0251G09G2310/08
    • At least one embodiment of a liquid crystal display device including: pixels each of which includes a plurality of sub-pixels; and scanning signal lines provided in a display area, the scanning signal lines being divided into groups each of which includes a plurality of scanning signal lines, the groups being sequentially selected, the polarity POL of signal electric potentials being inverted when the selected group is changed from a preceding group to a succeeding group which is selected immediately after the preceding group, a plurality of (for example, two) dummy scanning periods being inserted between a horizontal scanning period corresponding to last horizontal scanning (scanning of G23) in the preceding group and a horizontal scanning period corresponding to first horizontal scanning (scanning of G2) in the succeeding group, and a scanning signal line (for example, G2) which belongs to a group selected after the preceding group being subjected to dummy scanning during each dummy scanning period so as to be made active for a predetermined period of time, and then deactivated. With the arrangement, it is possible to suppress horizontal-shaped unevenness that occurs in a case where block inversion driving is carried out in a multi-pixel mode liquid crystal display device.
    • 液晶显示装置的至少一个实施例包括:各自包括多个子像素的像素; 和扫描信号线,扫描信号线被分成组,每组包括多条扫描信号线,这些组被顺序选择,当所选择的组被改变时,信号电位的极性POL被反转 从前一组到紧接在前一组之后选择的后续组,在前一组中的最后水平扫描(G23的扫描)对应的水平扫描周期之间插入多个(例如两个)虚拟扫描周期 以及对应于后续组中的第一次水平扫描(G2的扫描)的水平扫描时段和属于在每个虚拟扫描期间在前一组被进行虚拟扫描之后选择的组的扫描信号线(例如,G2) 期间使其活动一段预定的时间,然后停用。 通过该结构,可以抑制在多像素模式液晶显示装置中进行块反转驱动的情况下发生的水平状的不均匀。
    • 8. 发明授权
    • Liquid crystal display device, liquid crystal display device drive method, and television receiver
    • 液晶显示装置,液晶显示装置驱动方式和电视接收机
    • US08736544B2
    • 2014-05-27
    • US12998725
    • 2009-10-05
    • Fumikazu ShimoshikiryohMasae Kawabata
    • Fumikazu ShimoshikiryohMasae Kawabata
    • G09G3/36G09G5/00G06F3/038G09G5/10
    • G09G3/3614G09G3/3648G09G2310/0218G09G2310/0251
    • At least one embodiment of a liquid crystal display device including a display unit having scan signal lines divided into a plurality of groups which are successively selected. While the scan signal lines belonging to the selected group are successively scanned horizontally, signal potentials of the same polarity are successively supplied to a data signal line. The polarity of the signal potential is reversed between a preceding group and a subsequent group which are selected continuously. A plurality of dummy scan periods are inserted between the horizontal scan period corresponding to the last horizontal scan in the preceding group and the horizontal scan period corresponding to the first horizontal scan in the subsequent group. In each of the dummy scan periods, one of the scan signal lines which belong to the group selected after the preceding group is subjected to a dummy scan so that the scan signal line is maintained in an active state for a predetermined period and then deactivated so as to align the load state of a scan signal line drive circuit. This can reduce irregularities of the horizontal stripes when the data signal line is subjected to the block reverse drive.
    • 液晶显示装置的至少一个实施例包括具有划分成连续选择的多个组的扫描信号线的显示单元。 属于选定组的扫描信号线水平地依次扫描,相同极性的信号电位依次提供给数据信号线。 信号电位的极性在连续选择的前一组与后续组之间相反。 多个虚拟扫描周期被插入在与先前组中的最后水平扫描相对应的水平扫描周期和对应于后续组中的第一水平扫描的水平扫描周期之间。 在每个虚拟扫描周期中,属于前一组之后选择的组的扫描信号线之一经受虚拟扫描,使得扫描信号线在预定时间段内保持在活动状态,然后停用 以对齐扫描信号线驱动电路的负载状态。 当数据信号线经受块反向驱动时,这可以减少水平条纹的不规则性。