公开(公告)号：US20110102475A1

公开(公告)日：2011-05-05

申请号：US12794285

申请日：2010-06-04

Applicant: Pankaj AGARWAL ,  Sang-hoon LEE ,  Sung-jin CHOI ,  Tae-hoon KIM ,  Myoung-jun LEE ,  Youn-hee KIM

Inventor： Pankaj AGARWAL ,  Sang-hoon LEE ,  Sung-jin CHOI ,  Tae-hoon KIM ,  Myoung-jun LEE ,  Youn-hee KIM

IPC: G09G5/10 ,  H05B37/02

CPC classification number: H05B33/0827 ,  G09G3/342 ,  G09G2320/0233 ,  G09G2330/021

Abstract: A display apparatus, a backlight unit, a backlight providing method for controlling a plurality of light emitting diode (LED) strings are provided. The display apparatus includes a display panel, and a backlight unit (BLU) which projects backlight onto the display panel, wherein the BLU includes a plurality of light emitting diode (LED) strings, and a power supply unit which supplies minimum voltage from among the voltages needed to operate the plurality of LED strings to the plurality of LED strings. Therefore, the plurality of LED strings can have the same luminance.

Abstract translation: 提供了显示装置，背光单元，用于控制多个发光二极管（LED）串的背光提供方法。 显示装置包括显示面板和将背光投影到显示面板上的背光单元（BLU），其中，所述BLU包括多个发光二极管（LED）串，以及电源单元，其从 将多个LED串操作到多个LED串所需的电压。 因此，多个LED串可以具有相同的亮度。

公开(公告)号：US20090109234A1

公开(公告)日：2009-04-30

申请号：US12124569

申请日：2008-05-21

Applicant: Sang-hoon LEE ,  Young-jun RYU

Inventor： Sang-hoon LEE ,  Young-jun RYU

IPC: G09G5/10

CPC classification number: G09G5/02 ,  G09G2340/06 ,  G09G2360/16

Abstract: A display apparatus and a method of image enhancement are provided. The method of image enhancement includes acquiring color information from an image, determining a color distribution of the image based on the color information, and changing a brightness of the image based on the color distribution.

Abstract translation: 提供了显示装置和图像增强方法。 图像增强的方法包括从图像获取颜色信息，基于颜色信息确定图像的颜色分布，以及基于颜色分布来改变图像的亮度。

公开(公告)号：US20080100546A1

公开(公告)日：2008-05-01

申请号：US11762519

申请日：2007-06-13

Applicant: Sang-hoon LEE ,  Jeong-il KANG

Inventor： Sang-hoon LEE ,  Jeong-il KANG

IPC: G09G3/32

CPC classification number: H05B33/0866 ,  G09G3/3406 ,  G09G2320/0626 ,  G09G2360/16

Abstract: A display apparatus comprising a display unit and a plurality of light emitting diodes (LEDs) provided in a backlight that illuminates the display unit, the display apparatus includes: a power supplier; a current detector which detects a value of a current flowing in each of the LEDs; a current adjusting unit which compares a target current value which is supplied to the LED with a current value detected by the current detector and controls the value of the current flowing in the LED; and a controller which determines the target current value based on grayscale information of a video signal which is displayed on the display unit, provides the target current value to the current adjusting unit, and provides a virtual target current value that is higher than the target current value to the current adjusting unit for a predetermined time period if the target current value is determined.

Abstract translation: 一种显示装置，包括显示单元和设置在照明所述显示单元的背光中的多个发光二极管（LED），所述显示装置包括：电源; 电流检测器，其检测在每个LED中流动的电流的值; 电流调节单元，其将提供给LED的目标电流值与由电流检测器检测的电流值进行比较，并控制在LED中流动的电流的值; 以及控制器，其基于显示在显示单元上的视频信号的灰阶信息来确定目标电流值，将目标电流值提供给当前调整单元，并提供高于目标电流的虚拟目标电流值 如果确定了目标电流值，则预定时间段内的当前调整单元的值。

公开(公告)号：US20100070699A1

公开(公告)日：2010-03-18

申请号：US12557571

申请日：2009-09-11

Applicant: Sang-hoon LEE ,  Se-wook NA ,  In-sik RYU

Inventor： Sang-hoon LEE ,  Se-wook NA ,  In-sik RYU

IPC: G06F12/00

CPC classification number: G06F3/0643 ,  G06F3/0613 ,  G06F3/068

Abstract: A method of controlling a hybrid hard disk drive includes receiving a write command from a host; extracting metadata of a file to be written, determining whether the metadata satisfies a predetermined set condition, and storing the file to be written in a first storage device when the metadata satisfies the set condition.

Abstract translation: 控制混合型硬盘驱动器的方法包括从主机接收写命令; 提取要写入的文件的元数据，确定元数据是否满足预定的设置条件，并且当元数据满足设置条件时，存储要写入第一存储设备的文件。

公开(公告)号：US20080164829A1

公开(公告)日：2008-07-10

申请号：US11773597

申请日：2007-07-05

Applicant: Sang-hoon LEE ,  Jeong-il KANG

Inventor： Sang-hoon LEE ,  Jeong-il KANG

IPC: H05B41/36

CPC classification number: H05B33/0845

Abstract: A power supply device for a luminous element and a method thereof are provided. The power supply device includes an output calculation unit for calculating a brightness level of the luminous element, a current command signal generation unit for generating a current command signal so that a current value being supplied to the luminous element is adjusted by stages, and a constant current source for adjusting by stages the current being supplied to the luminous element according to the current command signal. According to the power supply device, the ascending period and the descending period can be shortened, and light output characteristics can be improved by improving the transient characteristic through an adaptive adjustment of current in the ascending period and the descending period.

Abstract translation: 提供了一种用于发光元件的电源装置及其方法。 电源装置包括用于计算发光元件的亮度电平的输出计算单元，用于产生电流指令信号的电流指令信号生成单元，使得提供给发光元件的电流值被分阶段地调节，并且恒定 电流源，用于根据电流指令信号逐级调节供应给发光元件的电流。 根据供电装置，可以缩短上升周期和下降周期，并且可以通过在上升周期和下降周期中的电流的自适应调整来改善瞬态特性来提高光输出特性。

公开(公告)号：US20130129385A1

公开(公告)日：2013-05-23

申请号：US13478216

申请日：2012-05-23

Applicant: Jong-in KIM ,  Sung-gi KIM ,  Dong-cheol AHN ,  Sang-hoon LEE

Inventor： Jong-in KIM ,  Sung-gi KIM ,  Dong-cheol AHN ,  Sang-hoon LEE

IPC: G03G15/02

CPC classification number: G03G15/0216 ,  G03G21/1814

Abstract: A developing device that attaches/detaches to/from a main body of an image forming apparatus includes a photosensitive drum, a charging roller to rotate while contacting the photosensitive drum to charge a surface of the photosensitive drum to a uniform potential, and a separating member to rotate between a first position where the charging roller is separated from the photosensitive drum and a second position where the charging roller contacts the photosensitive drum. The separating member includes a body into which a rotary shaft of the charging roller is inserted to be rotatable, and a contact portion extending from the body and contacting the surface of the photosensitive drum when the separating member is located at the first position so as to separate the charging roller from the photosensitive drum, wherein the contact portion includes a friction member including rubber.

Abstract translation: 与图像形成装置的主体连接/分离的显影装置包括感光鼓，充电辊，其在接触感光鼓的同时转动以使感光鼓的表面充电至均匀的电位;以及分离部件 以在充电辊与感光鼓分离的第一位置和充电辊接触感光鼓的第二位置之间旋转。 分离构件包括：主体，充电辊的旋转轴插入其中以便旋转;以及接触部分，当分离构件位于第一位置时，从主体延伸并接触感光鼓的表面，从而 将充电辊与感光鼓分开，其中接触部分包括包括橡胶的摩擦构件。

公开(公告)号：US20120319615A1

公开(公告)日：2012-12-20

申请号：US13313161

申请日：2011-12-07

Applicant: Sang-hoon LEE ,  Sung-jin CHOI ,  Myoung-jun LEE

Inventor： Sang-hoon LEE ,  Sung-jin CHOI ,  Myoung-jun LEE

IPC: H05B37/02

CPC classification number: H05B33/0866 ,  H05B33/0818 ,  Y02B20/347

Abstract: A light emitting diode (LED) driver circuit is provided. The LED driver circuit includes an LED the LED; a power unit which provides a current to the LED through an inductor; a dimming switch which is connected to the LED and bypasses the current provided to the LED; an input unit which receives brightness information of the LED; a logic unit which calculates reference currents for each driving mode according to the received brightness information; a current control unit which controls the power unit to provide the current based on the driving mode and the calculated reference currents to the inductor; and a switch control unit which switches the dimming switch on if the driving mode of the LED driver circuit is switched to the dimming mode.

Abstract translation: 提供了一种发光二极管（LED）驱动电路。 LED驱动电路包括LED LED; 功率单元，其通过电感器向LED提供电流; 调光开关，其连接到LED并绕过提供给LED的电流; 输入单元，其接收所述LED的亮度信息; 逻辑单元，其根据接收的亮度信息计算每个驱动模式的参考电流; 电流控制单元，其基于所述驱动模式和所计算的参考电流来控制所述功率单元以提供所述电流; 以及开关控制单元，如果LED驱动电路的驱动模式切换到调光模式，则将调光开关接通。

公开(公告)号：US20120068982A1

公开(公告)日：2012-03-22

申请号：US13237370

申请日：2011-09-20

Applicant: Jung-seob LEE ,  Sang-hoon LEE ,  Tae-hoon KIM ,  Agarwal PANKAJ

Inventor： Jung-seob LEE ,  Sang-hoon LEE ,  Tae-hoon KIM ,  Agarwal PANKAJ

IPC: G09G5/00 ,  H05B37/02

CPC classification number: G09G3/342 ,  G09G3/2092 ,  G09G2330/02 ,  G09G2330/023 ,  H02M3/33507 ,  H05B33/0815 ,  H05B33/0827

Abstract: A display apparatus and a power circuit device thereof are provided. The power circuit device includes: a transforming unit which outputs a first output current and a second output current in response to change of an input current; a first switching unit which switches to allow the input current to be selectively input; a first switch control unit which controls the first switching unit so that an operation voltage of the display apparatus reaches a first target value; a second switching unit which switches to allow the second output current to be selectively output; a backlight driving unit which drives the backlight based on the second output current; and a second switch control unit which controls the second switching unit so that a driving voltage of the backlight reaches a second target value.

Abstract translation: 提供了一种显示装置及其电源电路装置。 电源电路装置包括：变换单元，其响应于输入电流的变化输出第一输出电流和第二输出电流; 第一切换单元，其切换以允许输入电流被选择性地输入; 第一开关控制单元，其控制所述第一开关单元，使得所述显示装置的操作电压达到第一目标值; 第二切换单元，其切换以允许选择性地输出第二输出电流; 基于第二输出电流驱动背光的背光驱动单元; 以及第二开关控制单元，其控制所述第二开关单元，使得所述背光源的驱动电压达到第二目标值。

公开(公告)号：US20120035938A1

公开(公告)日：2012-02-09

申请号：US13198914

申请日：2011-08-05

Applicant: Jong-hoon JEONG ,  Chul-woo LEE ,  Nam-suk LEE ,  Sang-hoon LEE

Inventor： Jong-hoon JEONG ,  Chul-woo LEE ,  Nam-suk LEE ,  Sang-hoon LEE

IPC: G10L19/00

CPC classification number: G10L25/78 ,  G10L19/008 ,  G10L19/24

Abstract: An audio reproducing method for quickly and correctly extracting extra data, including: receiving a data stream including the extra data including an end marker disposed immediately before main data and data length information, which is length information of the extra data, disposed immediately before the end marker; checking the presence/absence of the end marker; and if the end marker exists, extracting the extra data by using the data length information.

Abstract translation: 一种用于快速且正确地提取额外数据的音频再现方法，包括：接收包括紧邻主数据之前设置的结束标记的附加数据的数据流和作为紧邻结束之前设置的额外数据的长度信息的数据长度信息 标记 检查结束标记的存在/不存在; 并且如果存在结束标记，则通过使用数据长度信息来提取额外的数据。

公开(公告)号：US20110175938A1

公开(公告)日：2011-07-21

申请号：US12847379

申请日：2010-07-30

Applicant: Sang-hoon LEE

Inventor： Sang-hoon LEE

IPC: G09G5/10 ,  H05B37/02

CPC classification number: H05B33/086 ,  G09G3/3406 ,  G09G2310/0237 ,  G09G2310/08 ,  G09G2320/0238 ,  G09G2320/0633 ,  G09G2320/064 ,  G09G2330/021 ,  G09G2360/16

Abstract: A backlight unit and a display apparatus are provided. The display apparatus includes a driving unit which applies a driving current using a duty cycle controlling to the light emitting unit; and a controller which controls a first driving current to be applied to the light emitting unit in a section of a plurality of frame sections, and a second driving current to be applied to the light emitting unit in another section of the plurality of frame sections. Therefore, luminance representation of backlight in a low grayscale region can be improved.

Abstract translation: 提供背光单元和显示装置。 显示装置包括驱动单元，该驱动单元使用占空比控制将驱动电流施加到发光单元; 以及控制器，其控制在多个框架部分的一部分中施加到所述发光单元的第一驱动电流，以及施加到所述多个框架部分的另一部分中的所述发光单元的第二驱动电流。 因此，可以提高低灰度区域中的背光的亮度表示。