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：US08917229B2

公开(公告)日：2014-12-23

申请号：US12197060

申请日：2008-08-22

申请人： Se-Ki Park ,  Gi-Cherl Kim ,  Ju-Young Yoon ,  Dong-Min Yeo ,  Eun-Jeong Kang ,  Ho-Sik Shin

发明人： Se-Ki Park ,  Gi-Cherl Kim ,  Ju-Young Yoon ,  Dong-Min Yeo ,  Eun-Jeong Kang ,  Ho-Sik Shin

IPC分类号： G09G3/36 ,  G09G5/00 ,  G06F3/038 ,  G09G5/10 ,  G09G3/34

CPC分类号： G09G3/342 ,  G09G3/3611 ,  G09G3/3648 ,  G09G2310/024 ,  G09G2320/0233 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2320/066 ,  G09G2360/16

摘要： A display device and a method of driving the same are provided according to one or more embodiments. According to an embodiment, the display device includes a display panel including a plurality of display blocks arranged in the form of a matrix; a plurality of lighting blocks emitting light to the display panel, each of the lighting blocks arranged so as to correspond to at least one row of the matrix and having adjustable light luminance; and a signal control unit adapted to receive an image signal, determine display block luminance of the respective display blocks when an image is displayed on the respective display blocks in accordance with the image signal, determine the light luminance of the respective lighting blocks by using the display block luminance of some display blocks corresponding to the respective lighting blocks, correct the image signal by using the light luminance and the display block luminance, and provide the corrected image signal to the display panel.

摘要翻译： 根据一个或多个实施例提供一种显示装置及其驱动方法。 根据实施例，显示装置包括显示面板，其包括以矩阵形式布置的多个显示块; 多个照明块向显示面板发光，每个照明块布置成对应于至少一排矩阵并且具有可调节的亮度; 以及信号控制单元，适于接收图像信号，根据图像信号确定在各个显示块上显示图像时相应显示块的显示块亮度，通过使用图像信号确定各个照明块的光亮度 对应于各个照明块的一些显示块的显示块亮度，通过使用光亮度和显示块亮度校正图像信号，并将校正后的图像信号提供给显示面板。

公开(公告)号：US08902189B2

公开(公告)日：2014-12-02

申请号：US12568909

申请日：2009-09-29

申请人： Se-Ki Park ,  Sung-Kyu Lee ,  Yong-Woo Lee ,  Byung-Duk Yang ,  Dong-Min Yeo

发明人： Se-Ki Park ,  Sung-Kyu Lee ,  Yong-Woo Lee ,  Byung-Duk Yang ,  Dong-Min Yeo

IPC分类号： G06F3/045 ,  G06F3/047

CPC分类号： G06F3/047 ,  G06F3/045

摘要： A method of detecting touch positions includes; providing an external power voltage which drives a touch panel, sequentially turning on a plurality of lower driving elements connected to the touch panel, Turning on a plurality of upper driving elements connected to the touch panel to readout at least one multi-touched position corresponding to an x-coordinate, while each of lower driving elements is turned on, receiving readout position information corresponding to an x-coordinate, turning on at least one of the upper driving elements connected to the touch panel, turning on the plurality of lower driving elements connected to the touch panel to readout the at least one multi-touched position corresponding to a y-coordinate, while each of upper driving elements is turned on, receiving readout position information corresponding to the y-coordinate, turning on a sensing element, and turning off the sensing element.

摘要翻译： 检测触摸位置的方法包括： 提供驱动触摸面板的顺序地接通连接到触摸面板的多个下部驱动元件的外部电源电压;接通连接到触摸面板的多个上部驱动元件，以读出至少一个对应于 x坐标，同时每个下驱动元件被接通，接收对应于x坐标的读出位置信息，打开连接到触摸面板的上驱动元件中的至少一个，打开多个下驱动元件 连接到触摸面板以读出与y坐标相对应的至少一个多点触摸位置，同时每个上驱动元件被接通，接收对应于y坐标的读出位置信息，打开感测元件，以及 关闭传感元件。

公开(公告)号：US08599126B2

公开(公告)日：2013-12-03

申请号：US12409879

申请日：2009-03-24

申请人： Moon-Hwan Chang ,  Dong-Min Yeo ,  Gi-Cherl Kim

发明人： Moon-Hwan Chang ,  Dong-Min Yeo ,  Gi-Cherl Kim

IPC分类号： G09G3/36 ,  G09G5/10 ,  F21V7/04 ,  G02F1/1335

CPC分类号： G09G3/3426 ,  G09G2320/0626 ,  G09G2340/16 ,  G09G2360/16

摘要： In a method of local dimming of a light source including a plurality of light-emitting blocks, a dimming level of each light-emitting block of the plurality of light-emitting blocks is determined. A compensation dimming level of a predetermined light-emitting block is calculated based on dimming levels of peripheral light-emitting blocks disposed around a periphery of the predetermined light-emitting block. The predetermined light-emitting block is driven based on the compensation dimming level.

摘要翻译： 在包括多个发光块的光源的局部调光的方法中，确定多个发光块中的每个发光块的调光电平。 基于设置在预定发光块周围的周边发光块的调光度，计算预定发光块的补偿调光电平。 基于补偿调光水平来驱动预定的发光块。

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：US20110134168A1

公开(公告)日：2011-06-09

申请号：US12961103

申请日：2010-12-06

申请人： Dong-Min YEO ,  Byung-Choon Yang ,  Young-Jun Seo ,  Yong-Hoon Kwon

发明人： Dong-Min YEO ,  Byung-Choon Yang ,  Young-Jun Seo ,  Yong-Hoon Kwon

IPC分类号： G09G5/10 ,  G09G3/36

CPC分类号： G09G3/342 ,  G09G2320/0646

摘要： A liquid crystal display (LCD) includes: a light source unit to provide light to a liquid crystal panel and includes first point light sources and second point light sources; a first timing controller to transmit a first image signal and a second image signal to the liquid crystal panel; a second timing controller to transmit optical data, which includes first information to turn on the first point light sources and the second point light sources at different times; and a light source driver to control the first point light sources and the second point light sources to be turned on and off according to the optical data. A method of driving an LCD includes turning on and off first and second point light sources according to received first and second image signals.

摘要翻译： 液晶显示器（LCD）包括：光源单元，用于向液晶面板提供光，并包括第一点光源和第二点光源; 将第一图像信号和第二图像信号发送到液晶面板的第一定时控制器; 第二定时控制器，用于传输光学数据，其包括在不同时间接通第一点光源和第二点光源的第一信息; 以及光源驱动器，用于根据光学数据控制第一点光源和第二点光源的导通和截止。 一种驱动LCD的方法包括根据接收的第一和第二图像信号来打开和关闭第一和第二点光源。

公开(公告)号：US20100103202A1

公开(公告)日：2010-04-29

申请号：US12503332

申请日：2009-07-15

申请人： Young-Jun Seo ,  Dong-Min Yeo ,  Gi-Cherl Kim

发明人： Young-Jun Seo ,  Dong-Min Yeo ,  Gi-Cherl Kim

IPC分类号： G09G5/10 ,  G09G3/36

CPC分类号： G09G3/3426 ,  G09G2320/02 ,  G09G2320/0247 ,  G09G2340/16

摘要： A light source apparatus includes a light source, a duty determining part, a luminance shifting determining part and a duty compensation part. The light source includes a plurality of light-emitting blocks. The duty determining part determines a duty of light-emitting blocks by using a block representative value obtained from a plurality of image blocks that are divided in accordance with a plurality of light-emitting blocks. The luminance shifting determining part compares block representative values of a previous frame with block representative values of a current frame to determine whether a luminance shifting is generated at an adjacent light-emitting block. The duty compensation part compensates a duty of the adjacent light-emitting blocks when the luminance shifting is generated at the adjacent light-emitting blocks. Thus, the duty of the adjacent light-emitting blocks determined as a block representative value is compensated so that an occurrence of flicker may be decreased.

摘要翻译： 光源装置包括光源，占空比确定部分，亮度转换确定部分和占空比补偿部分。 光源包括多个发光块。 占空比确定部通过使用从根据多个发光块划分的多个图像块获得的块代表值来确定发光块的占空比。 亮度偏移确定部分将前一帧的块代表值与当前帧的块代表值进行比较，以确定在相邻的发光块是否产生亮度偏移。 当在相邻的发光块产生亮度偏移时，占空比补偿部补偿相邻的发光块的占空比。 因此，确定为块代表值的相邻发光块的占空比被补偿，从而可以减少闪烁的发生。

公开(公告)号：US20100007682A1

公开(公告)日：2010-01-14

申请号：US12485455

申请日：2009-06-16

申请人： Yong-Hoon KWON ,  Gi-Cherl KIM ,  Dong-Min YEO ,  Sang-Il PARK ,  Hee-Kwang SONG ,  Ho-Sik SHIN

发明人： Yong-Hoon KWON ,  Gi-Cherl KIM ,  Dong-Min YEO ,  Sang-Il PARK ,  Hee-Kwang SONG ,  Ho-Sik SHIN

IPC分类号： G09G3/36 ,  G09G5/10

CPC分类号： G09G3/3426 ,  G09G2310/024 ,  G09G2360/16

摘要： A liquid crystal display (“LCD”) includes; a liquid crystal panel including a plurality of display blocks, a light-emitting unit which provides light to the liquid crystal panel and includes a plurality of light-emitting blocks corresponding to the display blocks, respectively; and a timing controller which provides an optical data signal for controlling the light-emitting blocks, wherein the optical data signal includes a plurality of scan signals and a plurality of dimming signals which are alternatingly arranged, and each of the dimming signals controls a luminance of a corresponding one of the light-emitting blocks.

摘要翻译： 液晶显示器（“LCD”）包括： 包括多个显示块的液晶面板，向液晶面板提供光并且分别包括与显示块对应的多个发光块的发光单元; 以及定时控制器，其提供用于控制所述发光块的光学数据信号，其中所述光学数据信号包括交替布置的多个扫描信号和多个调光信号，并且每个所述调光信号控制所述发光块的亮度 相应的一个发光块。

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：US20100007589A1

公开(公告)日：2010-01-14

申请号：US12499716

申请日：2009-07-08

申请人： Dong-Min Yeo ,  Gi-Cherl Kim ,  Se-Ki Park ,  Byoung-Dae Ye

发明人： Dong-Min Yeo ,  Gi-Cherl Kim ,  Se-Ki Park ,  Byoung-Dae Ye

IPC分类号： G09G3/32 ,  G09G3/36

CPC分类号： G09G3/3426 ,  G09G3/3413 ,  G09G2320/0238 ,  G09G2320/0242 ,  G09G2330/021 ,  G09G2360/16

摘要： A light source panel according to an embodiment includes a plurality of light-emitting parts having a plurality of light-emitting substances to be divided into a predetermined number of partial areas. A light source driving part provides each of the light-emitting substances with a current. An adaptive dimming control part receives an image signal from an external device and sets the light-emitting parts into a first dimming block corresponding to a first color class of the first image signal or a second dimming block corresponding to a second color class of the first image signal to control the backlight assembly, in order to prevent color artifacts from being generated at a boundary area between the first dimming block and the second dimming block, the adaptive dimming control part controlling the backlight assembly, so that the first dimming block performs a second dimming operation.

摘要翻译： 根据实施例的光源面板包括具有多个发光物质的多个发光部件，其被分成预定数量的局部区域。 光源驱动部件为每个发光物质提供电流。 自适应调光控制部分接收来自外部设备的图像信号，并且将发光部件设置为与第一图像信号的第一颜色等级相对应的第一调光块或对应于第一图像信号的第二颜色等级的第二调光块 图像信号以控制背光组件，为了防止在第一调光块和第二调光块之间的边界区域处产生颜色伪影，控制背光组件的自适应调光控制部分，使得第一调光块执行 第二次调光操作。