公开(公告)号：US08373645B2

公开(公告)日：2013-02-12

申请号：US12499699

申请日：2009-07-08

申请人： Hee-Kwang Song ,  Gi-Cherl Kim ,  Dong-Min Yeo ,  Sang-Il Park ,  Yong-Hoon Kwon

发明人： Hee-Kwang Song ,  Gi-Cherl Kim ,  Dong-Min Yeo ,  Sang-Il Park ,  Yong-Hoon Kwon

IPC分类号： G09G3/36

CPC分类号： G09G3/3426

摘要： A light source driving device includes a resolution analyzing part, a dimming block adjusting part, a local dimming part and a light source unit. The resolution analyzing part obtains an image resolution. The dimming block adjusting part adjusts the size or the number of dimming blocks generating light in a local dimming method in response to the resolution. The local dimming part generates a local dimming signal for individually driving the dimming blocks in response to the image data and the size or the number of dimming blocks. The light source unit is driven by the local dimming signal to generate light. The size or the number of the dimming blocks is adjusted to be optimized for the obtained image resolution, so that regardless of the image resolution, a local dimming signal corresponding to the size and the number of the dimming blocks may be generated.

摘要翻译： 光源驱动装置包括分辨率分析部分，调光块调节部分，局部调光部分和光源单元。 分辨率分析部分获得图像分辨率。 调光块调整部分根据分辨率调整以局部调光方式产生光的调光块的大小或数量。 本地调光部分响应于图像数据和调光块的大小或数量，产生用于单独驱动调光块的局部调光信号。 光源单元由局部调光信号驱动以产生光。 调整调光块的大小或数量以对于获得的图像分辨率进行优化，使得不管图像分辨率如何，可以产生与调光块的大小和数量相对应的局部调光信号。

公开(公告)号：US20100007670A1

公开(公告)日：2010-01-14

申请号：US12499699

申请日：2009-07-08

申请人： Hee-Kwang Song ,  Gi-Cherl Kim ,  Dong-Min Yeo ,  Sang-Il Park ,  Yong-Hoon Kwon

发明人： Hee-Kwang Song ,  Gi-Cherl Kim ,  Dong-Min Yeo ,  Sang-Il Park ,  Yong-Hoon Kwon

IPC分类号： G09G5/10 ,  G06T1/00 ,  G09G5/36

CPC分类号： G09G3/3426

摘要： A light source driving device includes a resolution analyzing part, a dimming block adjusting part, a local dimming part and a light source unit. The resolution analyzing part obtains an image resolution. The dimming block adjusting part adjusts the size or the number of dimming blocks generating light in a local dimming method in response to the resolution. The local dimming part generates a local dimming signal for individually driving the dimming blocks in response to the image data and the size or the number of dimming blocks. The light source unit is driven by the local dimming signal to generate light. The size or the number of the dimming blocks is adjusted to be optimized for the obtained image resolution, so that regardless of the image resolution, a local dimming signal corresponding to the size and the number of the dimming blocks may be generated.

摘要翻译： 光源驱动装置包括分辨率分析部分，调光块调节部分，局部调光部分和光源单元。 分辨率分析部分获得图像分辨率。 调光块调整部分根据分辨率调整以局部调光方式产生光的调光块的大小或数量。 本地调光部分响应于图像数据和调光块的大小或数量，产生用于单独驱动调光块的局部调光信号。 光源单元由局部调光信号驱动以产生光。 调整调光块的大小或数量以对于获得的图像分辨率进行优化，使得不管图像分辨率如何，可以产生与调光块的大小和数量相对应的局部调光信号。

公开(公告)号：US09035868B2

公开(公告)日：2015-05-19

申请号：US12760369

申请日：2010-04-14

申请人： Dong-Min Yeo ,  Gi-Cherl Kim ,  Yong-Hoon Kwon

发明人： Dong-Min Yeo ,  Gi-Cherl Kim ,  Yong-Hoon Kwon

IPC分类号： G09G3/36 ,  G09G3/34

CPC分类号： G09G3/3426 ,  G09G3/3648 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2320/066 ,  G09G2360/16

摘要： A method for driving a light source module, the light source module including a plurality of light-emitting blocks, a driving mode of the light-emitting block providing light to a plurality of pixels displaying a unit image is determined by analyzing grayscale values corresponding to the pixels. A second driving signal is applied to the light-emitting block determined to be in a boosting mode, the second driving signal having a level higher than the level of a first driving signal applied to the light-emitting block determined to be in a normal mode.

摘要翻译： 一种用于驱动光源模块的方法，所述光源模块包括多个发光块，通过分析对应于...的灰度值来确定向显示单元图像的多个像素提供光的发光块的驱动模式 像素。 第二驱动信号被施加到确定为升压模式的发光块，第二驱动信号的电平高于施加到判定为正常模式的发光块的第一驱动信号的电平 。

公开(公告)号：US20090189543A1

公开(公告)日：2009-07-30

申请号：US12335707

申请日：2008-12-16

申请人： Dong-Min Yeo ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Yong-Hoon Kwon

发明人： Dong-Min Yeo ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Yong-Hoon Kwon

IPC分类号： H05B37/02

CPC分类号： G09G3/3426 ,  G09G3/3413 ,  G09G2320/064 ,  G09G2320/0673 ,  G09G2340/06

摘要： In order to perform local dimming, a driving dimming duty cycle is generated using a target gamma curve (TGV), wherein the driving dimming duty cycle corresponds to a representative grayscale value (RGV) of each of a plurality of dimming unit areas. Each of a plurality of light unit blocks of a light source is driven based on the driving dimming duty cycle, wherein the light unit blocks correspond to the dimming unit areas, respectively. Therefore, a display apparatus may display an image having a higher contrast ratio than normal.

摘要翻译： 为了执行局部调光，使用目标伽马曲线（TGV）产生驱动调光占空比，其中驱动调光占空比对应于多个调光单元区域中的每一个的代表性灰度值（RGV）。 基于驱动调光占空比驱动光源的多个光单元块中的每一个，其中，光单元块分别对应于调光单元区域。 因此，显示装置可以显示具有比正常对比度更高的对比度的图像。

公开(公告)号：US08896618B2

公开(公告)日：2014-11-25

申请号：US12501301

申请日：2009-07-10

申请人： Yong-Hoon Kwon ,  Gi-Cherl Kim ,  Se-Ki Park ,  Moon-Hwan Chang ,  Dong-Min Yeo ,  Ho-Sik Shin

发明人： Yong-Hoon Kwon ,  Gi-Cherl Kim ,  Se-Ki Park ,  Moon-Hwan Chang ,  Dong-Min Yeo ,  Ho-Sik Shin

IPC分类号： G09G3/36 ,  G09G3/34

CPC分类号： G09G3/3426 ,  G09G3/3413 ,  G09G2320/0242 ,  G09G2320/0247 ,  G09G2320/0285 ,  G09G2320/04 ,  G09G2320/0666 ,  G09G2360/16

摘要： A liquid crystal display device and a method of driving the same are provided for one or more embodiments. The liquid crystal display device includes: a liquid crystal panel including a plurality of display blocks and displaying an image in response to image signals; a plurality of light-emitting blocks emitting light to the liquid crystal panel and corresponding to the plurality of display blocks; a first look-up table including a normalized value obtained by normalizing an initial duty ratio corresponding to the brightness of the image to a maximum duty ratio corresponding to the maximum brightness of the image; and a timing controller receiving the normalized value corresponding to each of the light-emitting blocks from the first look-up table and using the normalized value to provide an optical data signal corresponding to each of the light-emitting blocks.

摘要翻译： 提供一种或多种实施例的液晶显示装置及其驱动方法。 液晶显示装置包括：液晶面板，包括多个显示块，并响应于图像信号显示图像; 多个发光块，其向所述液晶面板发光并对应于所述多个显示块; 第一查找表，其包括通过将对应于图像的亮度的初始占空比归一化为对应于图像的最大亮度的最大占空比而获得的归一化值; 以及定时控制器，从第一查找表接收与每个发光块相对应的归一化值，并使用归一化值提供与每个发光块对应的光学数据信号。

公开(公告)号：US09041745B2

公开(公告)日：2015-05-26

申请号：US12474659

申请日：2009-05-29

申请人： Se-Ki Park ,  Joon-Hak Oh ,  Gi-Cherl Kim ,  Gi-Chang Park ,  Joong-Hyun Kim ,  Dong-Min Yeo ,  Nam-Ok Kwon ,  Yong-Hoon Kwon

发明人： Se-Ki Park ,  Joon-Hak Oh ,  Gi-Cherl Kim ,  Gi-Chang Park ,  Joong-Hyun Kim ,  Dong-Min Yeo ,  Nam-Ok Kwon ,  Yong-Hoon Kwon

IPC分类号： G09G5/10 ,  H05B33/08 ,  G09G3/34 ,  H05B41/392

CPC分类号： H05B33/0818 ,  G09G3/3426 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2330/021 ,  G09G2360/16 ,  H05B33/086 ,  H05B41/3927

摘要： There is provided a method of boosting a local dimming signal. In the method, it is determined whether or not local dimming signals, which are applied for individually driving light source blocks per frame, satisfy boosting conditions. Then, a predetermined local dimming signal corresponding to at least one of the light source blocks is boosted to a reference luminance value when the local dimming signals continuously satisfy the boosting conditions, and the boosting luminance of the predetermined local dimming signal at the reference luminance value is gradually decreased after a light adaptation time of an observer's eye. When the luminance of light source blocks that are boosted is gradually decreased before the light adaptation time or luminance of light source blocks that will be boosted is gradually increased to the light adaptation time, power consumption required to boost the light source blocks may be decreased.

摘要翻译： 提供了一种升压局部调光信号的方法。 在该方法中，确定适用于每帧驱动光源块的局部调光信号是否满足增强条件。 然后，当局部调光信号连续满足升压条件时，对应于至少一个光源块的预定局部调光信号被提升为参考亮度值，并且在参考亮度值下预定的局部调光信号的升压亮度 在观察者眼睛的光适应时间后逐渐减少。 当升温的光源块的亮度在光适应时间或将被提升的光源块的亮度逐渐增加到光适应时间之前逐渐减小时，可以降低升高光源块所需的功耗。

公开(公告)号：US08111223B2

公开(公告)日：2012-02-07

申请号：US12335707

申请日：2008-12-16

申请人： Dong-Min Yeo ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Yong-Hoon Kwon

发明人： Dong-Min Yeo ,  Gi-Cherl Kim ,  Byung-Choon Yang ,  Yong-Hoon Kwon

IPC分类号： G09G3/32

CPC分类号： G09G3/3426 ,  G09G3/3413 ,  G09G2320/064 ,  G09G2320/0673 ,  G09G2340/06

摘要： In order to perform local dimming, a driving dimming duty cycle is generated using a target gamma curve (TGV), wherein the driving dimming duty cycle corresponds to a representative grayscale value (RGV) of each of a plurality of dimming unit areas. Each of a plurality of light unit blocks of a light source is driven based on the driving dimming duty cycle, wherein the light unit blocks correspond to the dimming unit areas, respectively. Therefore, a display apparatus may display an image having a higher contrast ratio than normal.

摘要翻译： 为了执行局部调光，使用目标伽马曲线（TGV）产生驱动调光占空比，其中驱动调光占空比对应于多个调光单元区域中的每一个的代表性灰度值（RGV）。 基于驱动调光占空比驱动光源的多个光单元块中的每一个，其中，光单元块分别对应于调光单元区域。 因此，显示装置可以显示具有比正常对比度更高的对比度的图像。

公开(公告)号：US20090295841A1

公开(公告)日：2009-12-03

申请号：US12474659

申请日：2009-05-29

申请人： Se-Ki Park ,  Joon-Hak Oh ,  Gi-Cherl Kim ,  Gi-Chang Park ,  Joong-Hyun Kim ,  Dong-Min Yeo ,  Nam-Ok Kwon ,  Yong-Hoon Kwon

发明人： Se-Ki Park ,  Joon-Hak Oh ,  Gi-Cherl Kim ,  Gi-Chang Park ,  Joong-Hyun Kim ,  Dong-Min Yeo ,  Nam-Ok Kwon ,  Yong-Hoon Kwon

IPC分类号： G09G5/10 ,  H05B37/02

CPC分类号： H05B33/0818 ,  G09G3/3426 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2330/021 ,  G09G2360/16 ,  H05B33/086 ,  H05B41/3927

摘要： There is provided a method of boosting a local dimming signal. In the method, it is determined whether or not local dimming signals, which are applied for individually driving light source blocks per frame, satisfy boosting conditions. Then, a predetermined local dimming signal corresponding to at least one of the light source blocks is boosted to a reference luminance value when the local dimming signals continuously satisfy the boosting conditions, and the boosting luminance of the predetermined local dimming signal at the reference luminance value is gradually decreased after a light adaptation time of an observer's eye. When the luminance of light source blocks that are boosted is gradually decreased before the light adaptation time or luminance of light source blocks that will be boosted is gradually increased to the light adaptation time, power consumption required to boost the light source blocks may be decreased.

摘要翻译： 提供了一种升压局部调光信号的方法。 在该方法中，确定适用于每帧驱动光源块的局部调光信号是否满足增强条件。 然后，当局部调光信号连续满足升压条件时，对应于至少一个光源块的预定局部调光信号被提升为参考亮度值，并且在参考亮度值下预定的局部调光信号的升压亮度 在观察者眼睛的光适应时间后逐渐减少。 当升温的光源块的亮度在光适应时间或将被提升的光源块的亮度逐渐增加到光适应时间之前逐渐减小时，可以降低升高光源块所需的功耗。

公开(公告)号：US08482510B2

公开(公告)日：2013-07-09

申请号：US12617769

申请日：2009-11-13

申请人： Moon-Hwan Chang ,  Yong-Hoon Kwon ,  Gi-Cherl Kim ,  Si-Joon Song ,  Sang-Il Park ,  Byoung-Dae Ye

发明人： Moon-Hwan Chang ,  Yong-Hoon Kwon ,  Gi-Cherl Kim ,  Si-Joon Song ,  Sang-Il Park ,  Byoung-Dae Ye

IPC分类号： G09G3/34

CPC分类号： G09G3/3426 ,  G09G3/3413 ,  G09G2310/024 ,  G09G2320/0242 ,  G09G2320/0261 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2360/16 ,  H05B33/0866

摘要： A light source apparatus includes a light source module, a local dimming control part and a light source driving part. The light source module includes a plurality of light-emitting blocks. Each of the light-emitting blocks includes a first color light source, a second color light source and a third color light source, respectively. The local dimming control part drives the light-emitting blocks by blocks. The local dimming control part sets a reference duty signal for first, second and third color driving signals in accordance with a driving mode of the light source module. The light source driving part generates the first color driving signal, the second color driving signal and the third color driving signal by using the reference duty ratio set in accordance with the driving mode and a driving current having a same peak current level in accordance with the driving mode.

摘要翻译： 光源装置包括光源模块，局部调光控制部和光源驱动部。 光源模块包括多个发光块。 每个发光块分别包括第一颜色光源，第二彩色光源和第三颜色光源。 局部调光控制部件通过块驱动发光块。 局部调光控制部分根据光源模块的驱动模式设置第一，第二和第三颜色驱动信号的参考占空比信号。 光源驱动部分通过使用根据驱动模式设置的基准占空比和根据该驱动模式具有相同峰值电流电平的驱动电流来产生第一颜色驱动信号，第二颜色驱动信号和第三颜色驱动信号 驾驶模式。

公开(公告)号：US08207933B2

公开(公告)日：2012-06-26

申请号：US12198583

申请日：2008-08-26

申请人： Ho-Sik Shin ,  Gi-Cherl Kim ,  Sang-Il Park ,  Yong-Hoon Kwon

发明人： Ho-Sik Shin ,  Gi-Cherl Kim ,  Sang-Il Park ,  Yong-Hoon Kwon

IPC分类号： G09G3/36

CPC分类号： G09G3/3426 ,  G09G3/3413 ,  G09G2320/041 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2360/16

摘要： A backlight unit includes a substrate and has a plurality of light emitting areas. In each light emitting area, at least one light emitting diode and a bypass current path are connected in parallel between a connection node and a switching unit. The switching unit is configured to connect a selected one of the light emitting diode and the bypass unit to the connection node of the next light emitting area.

摘要翻译： 背光单元包括基板并具有多个发光区域。 在每个发光区域中，至少一个发光二极管和旁路电流路径并联连接在连接节点和切换单元之间。 开关单元被配置为将所选择的发光二极管和旁路单元中的一个连接到下一个发光区域的连接节点。