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    • 1. 发明公开
    • 액정표시장치의 데이타구동회로
    • 液晶显示器驱动数据电路
    • KR1020010018731A
    • 2001-03-15
    • KR1019990034811
    • 1999-08-21
    • 엘지디스플레이 주식회사성만영
    • 성만영임경문김영식
    • G09G3/36
    • G09G3/2011G09G3/3685G09G2310/0259
    • PURPOSE: A circuit for driving data of a liquid crystal display device is provided to supply a data driving circuit, which is easily integrated to a liquid crystal panel by simplifying the organization of the circuit. CONSTITUTION: The device includes a liquid crystal panel(10), the first latch array(22), the second latch array(24), a data bus(27), a shift register(28), a TDCC generator(36) and a D/A converter array(30). The shift register(28) generates the regular pulse to the first latch array(22) connected to the data bus(27) and the second latch array(24) is connected to the first latch array(22). The TDCC generator(36) generates three time-data-conversion-clock(TDCC) signals and three reverse TDCC signals. The D/A converter array(30) is connected between the TDCC generator(36) and the second latch array(24) and generates the sampling signal and makes the sampling/hold of the ramp signal.
    • 目的:提供一种用于驱动液晶显示装置的数据的电路,用于通过简化电路的组织来提供易于集成到液晶面板的数据驱动电路。 构成:该装置包括液晶面板(10),第一锁存阵列(22),第二锁存阵列(24),数据总线(27),移位寄存器(28),TDCC发生器(36)和 D / A转换器阵列(30)。 移位寄存器(28)产生与连接到数据总线(27)的第一锁存器阵列(22)的规则脉冲,第二锁存器阵列(24)连接到第一锁存器阵列(22)。 TDCC发生器(36)产生三个时间数据转换时钟(TDCC)信号和三个反向TDCC信号。 D / A转换器阵列(30)连接在TDCC发生器(36)和第二锁存器阵列(24)之间,并产生采样信号并进行斜波信号的采样/保持。
    • 4. 发明公开
    • 액정표시소자
    • 液晶显示器
    • KR1020010036715A
    • 2001-05-07
    • KR1019990043838
    • 1999-10-11
    • 엘지디스플레이 주식회사성만영
    • 성만영임경문
    • G02F1/136
    • PURPOSE: A liquid crystal display is provided to minimize the flicker by forming mutually complementary two thin film transistors(TFT) in one pixel and have redundancy function, also improve the process yield and the aperture ratio. CONSTITUTION: A liquid crystal display comprises n-channel thin film transistors(TFT) and p-channel TFTs formed in the intersection of two gate lines and a data line in order, and liquid crystal capacitors(Clc) and storage capacitors(Cst) parallelly connected between drain electrodes and common electrodes. The n-channel TFTs are connected with the intersection of the first gate line(g1) and the first data line(d1) and the p-channel TFTs are connected with the intersection of the inverse gate line(g1') and the first data line(d1). An inverter(i1) is connected with the first inverse gate line(g1') and the first gate line(g1). The n-channel TFTs and the p-channel TFTs are formed repeatedly on the basis of the gate line(g1) and the gate inverse line(g1'). Exactly, the polarity of the TFT formed in the respective gate lines has the form of (n,p) (n,p) (n,p) ... .
    • 目的:提供一个液晶显示器,通过在一个像素中形成互补的两个薄膜晶体管(TFT)并具有冗余功能来最小化闪烁,还提高了工艺产量和孔径比。 构成:液晶显示器包括依次形成在两个栅极线和数据线的交点处的n沟道薄膜晶体管(TFT)和p沟道TFT,并且液晶电容器(Clc)和存储电容器(Cst)并联 连接在漏电极和公共电极之间。 n沟道TFT与第一栅极线(g1)和第一数据线(d1)的交点连接,p沟道TFT与反向栅极线(g1')和第一数据 线(D1)。 逆变器(i1)与第一反向栅极线(g1')和第一栅极线(g1)连接。 基于栅极线(g1)和栅极反向线(g1'),重复地形成n沟道TFT和p沟道TFT。 恰好地,形成在各个栅极线中的TFT的极性具有(n,p)(n,p)(n,p)...的形式。
    • 5. 发明公开
    • 광 감지기와, 그를 이용한 영상표시장치 및 그의 구동 방법
    • 照相感光装置和使用其的图像显示装置及其驱动方法
    • KR1020080045434A
    • 2008-05-23
    • KR1020060114562
    • 2006-11-20
    • 엘지디스플레이 주식회사
    • 임경문
    • G02F1/133G02F1/13357H05B41/38H05B41/24
    • Y02B20/202G02F1/1336H05B41/24H05B41/38
    • A photo-sensor, an image display device using the photo-sensor, and a method of driving the image display device are provided to control the brightness of a backlight automatically in real time according to the intensity of peripheral light to reduce power consumption of the backlight in a bright environment and achieve high luminance in a dark environment. An image display device includes a backlight assembly(150) for irradiating light to a display panel(110), a first photo element for generating a predetermined voltage without receiving external light, a first light blocking layer for blocking peripheral light from being irradiated to the first photo element, and a second photo element for generating a voltage proportional to the intensity of peripheral light other than light emitted from the backlight assembly. The image display device further includes a signal processor for converting analog photo sensing voltages generated according to the first and second photo elements to digital photo sensing voltages, and an inverter(190) for controlling the brightness of the backlight assembly in proportion to the digital photo sensing voltages.
    • 提供光传感器,使用光传感器的图像显示装置和驱动图像显示装置的方法,根据外围光的强度实时自动控制背光的亮度,以降低背光源的功耗 背光在明亮的环境中,在黑暗环境下实现高亮度。 图像显示装置包括用于将光照射到显示面板(110)的背光组件(150),用于在不接收外部光的情况下产生预定电压的第一光电元件,用于阻挡周围光的第一遮光层照射到 第一光元件,以及用于产生与背光组件发出的光以外的外围光强度成比例的电压的第二光元件。 图像显示装置还包括信号处理器,用于将根据第一和第二光电元件产生的模拟感光电压转换为数字感光电压;以及逆变器(190),用于与数字照片成比例地控制背光组件的亮度 感应电压。
    • 6. 发明公开
    • 액정표시장치 및 이의 구동회로
    • 液晶显示装置及其驱动电路
    • KR1020080002233A
    • 2008-01-04
    • KR1020060060919
    • 2006-06-30
    • 엘지디스플레이 주식회사
    • 임경문
    • G09G3/36G02F1/133
    • G09G3/3406G09G3/3648G09G2320/0626G09G2330/021G09G2360/144
    • An LCD(Liquid Crystal Display) device and a driver thereof are provided to reduce power consumption by controlling a backlight unit of the LCD device according to the magnitude of external brightness. An LCD(Liquid Crystal Display) device includes a liquid crystal panel(100) and a backlight unit(180). The liquid crystal panel includes a photo sensor(150), a signal processor(170), and a sensor controller(157). The photo sensor is formed at a boundary between display and non-display areas. The signal processor, which is electrically connected to the photo sensor, generates control signals corresponding to external beams detected by the photo sensor. The sensor controller, which is formed between the photo sensor and signal processor, controls the generated signals corresponding to the external beam. The backlight unit controls the brightness of beams radiated to the liquid crystal panel according to the control signal of the signal processor.
    • 提供LCD(液晶显示器)装置及其驱动器,以通过根据外部亮度的大小控制LCD装置的背光单元来降低功耗。 LCD(液晶显示器)装置包括液晶面板(100)和背光单元(180)。 液晶面板包括光传感器(150),信号处理器(170)和传感器控制器(157)。 光传感器形成在显示区域和非显示区域之间的边界处。 电连接到光传感器的信号处理器产生对应于由光传感器检测到的外部光束的控制信号。 形成在光传感器和信号处理器之间的传感器控制器控制对应于外部光束的产生的信号。 背光单元根据信号处理器的控制信号控制照射到液晶面板的光束的亮度。
    • 7. 发明公开
    • 발광표시장치
    • 电致发光显示装置
    • KR1020070002189A
    • 2007-01-05
    • KR1020050057579
    • 2005-06-30
    • 엘지디스플레이 주식회사
    • 임경문
    • G09G3/30
    • G09G3/325G09G2300/043G09G2320/0233
    • A light emitting display device is provided to enhance uniformity of brightness of a displayed image by monitoring and compensating the variation of a threshold voltage of a driving transistor. A light emitting diode(OLED) emits light according to an applied current. A first switching element(Tr1) supplies a data voltage from a data line to a first node in response to a first scan signal from a first scan line. A second switching element(Tr2) supplies the data voltage to a second node in response to a first scan pulse. A third switching element(Tr3) adjusts a current flowing through the drain-source electrodes according to the data voltage, and supplies the current to the LED. A fourth switching element(Tr4) enables the third switching element to serve as a source follower buffer in response to the first scan signal, and stores the threshold voltage of the third switching element on a first capacitor. A fifth switching element(Tr5) supplies the data voltage from the first node to a third node in response to a second scan signal, which is inverted from the first scan signal. A sixth switching element(Tr6) connects a source terminal of the third switching element to a second source line in response to the second scan signal. A second capacitor(C2) is connected between the first node and the second source line, and stores the data voltage applied on the first node.
    • 提供发光显示装置,通过监视和补偿驱动晶体管的阈值电压的变化来增强显示图像的亮度的均匀性。 发光二极管(OLED)根据施加的电流发光。 响应于来自第一扫描线的第一扫描信号,第一开关元件(Tr1)将来自数据线的数据电压提供给第一节点。 第二开关元件(Tr2)响应于第一扫描脉冲将数据电压提供给第二节点。 第三开关元件(Tr3)根据数据电压来调节流过漏极 - 源极的电流,并且将电流提供给LED。 第四开关元件(Tr4)使得第三开关元件能够响应于第一扫描信号而用作源极跟随器缓冲器,并且将第三开关元件的阈值电压存储在第一电容器上。 响应于与第一扫描信号相反的第二扫描信号,第五开关元件(Tr5)将来自第一节点的数据电压提供给第三节点。 第六开关元件(Tr6)响应于第二扫描信号将第三开关元件的源极端子连接到第二源极线。 第二电容器(C2)连接在第一节点和第二源极线之间,并存储施加在第一节点上的数据电压。