公开(公告)号：US09396695B2

公开(公告)日：2016-07-19

申请号：US14561200

申请日：2014-12-04

Applicant: Novatek Microelectronics Corp.

Inventor： Jr-Ching Lin ,  Hsin-Hung Lee ,  Chia-Wei Su ,  Po-Yu Tseng ,  Shun-Hsun Yang ,  Po-Hsiang Fang

IPC: G09G3/36 ,  G09G1/00

CPC classification number: G09G3/3696 ,  G09G1/005 ,  G09G3/3688 ,  G09G2320/0673

Abstract: A source driver includes a first drive channel circuit, a voltage controller and a first programmable voltage buffer unit. The first drive channel circuit receives a first pixel data and a first reference voltage group, for driving the display device. The voltage controller receives a voltage command during a line data transmitting period, a horizontal blanking period or a vertical blanking period for generating a first reference voltage configuration data. The first programmable voltage buffer unit is coupled to the voltage controller and the first drive channel circuit, and receives the first reference voltage configuration data for applying the first reference voltage group to the first drive channel circuit. Furthermore, a method for driving a display device is also provided.

Abstract translation: 源驱动器包括第一驱动通道电路，电压控制器和第一可编程电压缓冲器单元。 第一驱动通道电路接收第一像素数据和第一参考电压组，用于驱动显示装置。 电压控制器在行数据发送期间，水平消隐期间或垂直消隐期间接收电压指令，以产生第一参考电压配置数据。 第一可编程电压缓冲器单元耦合到电压控制器和第一驱动通道电路，并且接收用于将第一参考电压组施加到第一驱动通道电路的第一参考电压配置数据。 此外，还提供了一种用于驱动显示装置的方法。

公开(公告)号：US09105213B2

公开(公告)日：2015-08-11

申请号：US13676239

申请日：2012-11-14

Applicant: LG Display Co., Ltd.

Inventor： Sang Hyeon Kwak

IPC: G09G3/30 ,  G09G1/00 ,  G09G3/32

CPC classification number: G09G1/005 ,  G09G3/3225 ,  G09G3/3233 ,  G09G2230/00 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/045

Abstract: An OLED display device is provided. The OLED display device may include a first capacitor connected between a data line and a first node, a first transistor connected to the first node and a second node, an OLED connected between a low-level source voltage terminal and a third node, a second transistor connected to the second and third nodes, a driving transistor, and a second capacitor. The driving transistor may have a gate connected to the first node, a drain connected to the second node, and a source connected to a high-level source voltage terminal. One end of the second capacitor may receive a control signal, and the other end of the second capacitor may be connected to the first node.

Abstract translation: 提供了OLED显示装置。 OLED显示装置可以包括连接在数据线和第一节点之间的第一电容器，连接到第一节点的第一晶体管和第二节点，连接在低电平源电压端子和第三节点之间的OLED，第二电容器 连接到第二和第三节点的晶体管，驱动晶体管和第二电容器。 驱动晶体管可以具有连接到第一节点的栅极，连接到第二节点的漏极和连接到高电平源极电压端子的源极。 第二电容器的一端可以接收控制信号，并且第二电容器的另一端可以连接到第一节点。

公开(公告)号：US08947408B2

公开(公告)日：2015-02-03

申请号：US13677314

申请日：2012-11-15

Applicant: Novatek Microelectronics Corp.

Inventor： Jr-Ching Lin ,  Hsin-Hung Lee ,  Chia-Wei Su ,  Po-Yu Tseng ,  Shun-Hsun Yang ,  Po-Hsiang Fang

IPC: G06F3/038 ,  G09G1/00 ,  G09G3/36

CPC classification number: G09G3/3696 ,  G09G1/005 ,  G09G3/3688 ,  G09G2320/0673

Abstract: A source driver includes a first drive channel circuit, a voltage controller and a first programmable voltage buffer unit. The first drive channel circuit receives a first pixel data from the timing controller via a data bus, converts the first pixel data to a first drive voltage according to a first reference voltage group, and drives a display panel by the first drive voltage. The voltage controller receives a voltage command from the timing controller, generates and changes a first reference voltage configuration data according to the voltage command. The first programmable voltage buffer unit is coupled to the voltage controller and the first drive channel circuit, and receives the first reference voltage configuration data to generate and adjust the first reference voltage group for applying to the first drive channel circuit. Furthermore, a method for updating a new gamma curve by the source driver is also provided.

Abstract translation: 源驱动器包括第一驱动通道电路，电压控制器和第一可编程电压缓冲器单元。 第一驱动通道电路经由数据总线从定时控制器接收第一像素数据，根据第一参考电压组将第一像素数据转换为第一驱动电压，并且通过第一驱动电压驱动显示面板。 电压控制器从定时控制器接收电压指令，根据电压指令产生并改变第一参考电压配置数据。 第一可编程电压缓冲器单元耦合到电压控制器和第一驱动通道电路，并且接收第一参考电压配置数据以产生和调整第一参考电压组以施加到第一驱动通道电路。 此外，还提供了用于由源驱动器更新新伽玛曲线的方法。

公开(公告)号：US08514161B2

公开(公告)日：2013-08-20

申请号：US13682068

申请日：2012-11-20

Applicant: Takahiro Senda

Inventor： Takahiro Senda

IPC: G09G3/36

CPC classification number: G09G1/005 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0251 ,  G09G2310/061

Abstract: In one embodiment of the present invention, to allow a circuit that compensates for variations in a threshold voltage of a drive element to operate properly and prevent luminances of other pixel circuits from fluctuating due to a compensation operation, a pixel circuit is disclosed. A driving TFT, a switching TFT, and an organic EL element are provided between a power supply wiring line and a common cathode, and a capacitor and a switching TFT are provided between a gate terminal of the driving TFT and a data line. A switching TFT is provided between a connection point B between the capacitor and the switching TFT and a reference supply wiring line, a switching TFT is provided between the gate terminal and a drain terminal of the driving TFT, and a switching TFT is provided between the gate terminal of the driving TFT and the connection point B.

公开(公告)号：US20130181966A1

公开(公告)日：2013-07-18

申请号：US13739703

申请日：2013-01-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Eui-Hyuk Jeong ,  Hae-woon Park

IPC: G09G1/00

CPC classification number: G09G1/005 ,  G09G3/3696 ,  G09G2300/0408 ,  G09G2300/043 ,  G09G2330/028

Abstract: A display drive chip and a display device including the same are disclosed. The display drive chip can include a first voltage generating unit outputting a power voltage and a second voltage generating unit outputting the power voltage. A circuit block can receive the power voltage; and a plurality of pads can be connected to internal pads of the power voltage, wherein the display drive has a layout structure in which at least two pads from among the plurality of pads are connected to the first voltage generating unit and the second voltage generating unit, respectively, and the plurality of pads can be connected to each other through external wiring.

Abstract translation: 公开了一种显示驱动芯片和包括该驱动芯片的显示装置。 显示驱动芯片可以包括输出电源电压的第一电压产生单元和输出电源电压的第二电压产生单元。 电路块可以接收电源电压; 并且多个焊盘可以连接到电源电压的内部焊盘，其中显示驱动器具有其中来自多个焊盘中的至少两个焊盘连接到第一电压产生单元和第二电压产生单元的布局结构 ，并且多个焊盘可以通过外部布线彼此连接。

公开(公告)号：US20130120343A1

公开(公告)日：2013-05-16

申请号：US13676268

申请日：2012-11-14

Applicant: LG Display Co., Ltd.

Inventor： Ji-Young Ahn ,  Bu-Yeol Lee ,  Jeong-Keun Shin

IPC: G09G1/00

CPC classification number: G09G1/005 ,  G09G3/00 ,  G09G2330/00 ,  G09G2330/022 ,  G09G2354/00

Abstract: Disclosed herein are a flat panel display which is capable of reducing consumption of standby power, and a method for driving the same. The flat panel display includes a display unit for displaying an image, a driving circuit for controlling driving of the display unit, a receiver for receiving a user command, and a power supply unit for setting a power mode to a driving mode or a standby mode according to a predefined power setting or the user command, and supplying driving power to the display unit, driving circuit and receiver in the driving mode and only to the receiver in the standby mode. When the power mode is set to the standby mode, the power supply unit generates the driving power using a battery contained therein and supplies the generated driving power to the receiver, and cuts off input of external power.

Abstract translation: 这里公开了能够降低待机功率消耗的平板显示器及其驱动方法。 平板显示器包括用于显示图像的显示单元，用于控制显示单元的驱动的驱动电路，用于接收用户命令的接收器和用于将电源模式设置为驾驶模式或待机模式的电源单元 根据预定义的功率设置或用户命令，并且以驱动模式将驱动电力提供给显示单元，驱动电路和接收器，并且仅在待机模式下提供给接收器。 当电源模式设置为待机模式时，电源单元使用其中包含的电池产生驱动电力，并将所产生的驱动电力提供给接收器，并且切断外部电源的输入。

公开(公告)号：US20060232221A1

公开(公告)日：2006-10-19

申请号：US11390361

申请日：2006-03-28

Applicant: Yoshikazu Kawai

Inventor： Yoshikazu Kawai

IPC: H05B37/02

CPC classification number: G09G1/005 ,  G09G2330/022 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A switching power supply device has a large load power supply line for a CRT circuit, to and from which a dummy resistor for voltage stabilization is connected and disconnected by a switch. In standby state, a control unit turns off the switch to disconnect the dummy resistor from the power supply line. When receiving a power supply ON command input by a user operating a remote control, the control unit turns on the switch to connect the dummy resistor to the power supply line. At a predetermined time after the dummy resistor connection, the control unit makes a regulator active to start providing voltage to a video/audio signal processing circuit with sufficient current providable thereto. This enables to reduce power consumption of the power supply line with the dummy resistor, and to prevent problems caused by insufficient current in transient state from standby state to power supply ON state.

Abstract translation: 开关电源装置具有用于CRT电路的大负载电源线，用于电压稳定的虚拟电阻器通过开关连接和断开。 在待机状态下，控制单元关闭开关以将虚拟电阻与电源线断开。 当接收到由操作遥控器的用户输入的电源ON命令时，控制单元接通开关以将虚拟电阻器连接到电源线。 在虚拟电阻器连接之后的预定时间，控制单元使调节器有效，开始向视频/音频信号处理电路提供足够的电流。 这样可以减少虚拟电阻器的电源线的功耗，并且能够防止从待机状态到电源接通状态的暂态状态下的电流不足引起的问题。

公开(公告)号：US06812920B1

公开(公告)日：2004-11-02

申请号：US09807725

申请日：2001-04-18

Applicant: Hiroshi Otsuka

Inventor： Hiroshi Otsuka

IPC: G09G506

CPC classification number: G09G5/006 ,  G06F1/3215 ,  G06F1/3265 ,  G09G1/005 ,  G09G1/16 ,  G09G2330/021 ,  G09G2330/022 ,  Y02D10/153

Abstract: A display device which is suitable for connection to a computer etc. allows an operator to freely set a power saving mode to suppress the wasteful consumption of power. Power reduction means reduces, in a plurality of modes, the power supplied to device components included in the display device. Power management output selecting means sets any of the plurality of modes on the basis of a selection made by an operator. Signal detecting means monitors horizontal and vertical synchronizing signals sent from a computer and detects as a trigger signal a state in which at least one of them is not being received. In response to the trigger signal being detected, power management signal output means gives an instruction to the power reduction means to perform the set mode.

Abstract translation: 适于连接到计算机等的显示装置允许操作者自由地设置省电模式以抑制浪费的功率消耗。 功率降低装置以多种模式减少提供给包括在显示装置中的装置部件的功率。 功率管理输出选择装置基于由操作者进行的选择来设置多个模式中的任何一个。 信号检测装置监视从计算机发送的水平和垂直同步信号，并将其中至少一个未被接收的状态检测为触发信号。 响应于检测到的触发信号，功率管理信号输出装置向功率降低装置发出指令以执行设定模式。

公开(公告)号：US20040130275A1

公开(公告)日：2004-07-08

申请号：US10701151

申请日：2003-11-04

Inventor： Jean-Michel Moreau

IPC: G09G001/28

CPC classification number: G09G1/005 ,  G09G1/04

Abstract: A control circuit of a power supply delivering a supply current to an inductor connected in series with the horizontal deflection yoke of a cathode ray tube display, the inductor being the primary coil of a transformer operatively connected for delivering a rectified low-pass filtered biasing voltage to the anode of the display, the low-pass filtering having a first time constant corresponding to the duration of a plurality of pictures, the control circuit having feedback circuitry for generating a monitoring voltage substantially proportional to the biasing voltage and for controlling the supply current to keep the monitoring voltage equal to a reference voltage; and feedforward circuitry for measuring the cathode current and for adding to the monitoring voltage a compensation voltage corresponding to the cathode current, low-pass filtered with a second time constant corresponding to the duration of a small number of lines and high-pass filtered with the first time constant.

Abstract translation: 电源的控制电路，其向与阴极射线管显示器的水平偏转线圈串联的电感器提供电源电流，所述电感器是变压器的初级线圈，其可操作地连接用于传送经整流的低通滤波偏置电压 所述低通滤波具有对应于多个图像的持续时间的第一时间常数，所述控制电路具有用于产生与所述偏置电压基本成比例的监测电压并用于控制所述电源电流的反馈电路 保持监控电压等于参考电压; 以及用于测量阴极电流的前馈电路，并且用于将与阴极电流相对应的补偿电压加到监视电压上，以对应于少量线路的持续时间的第二时间常数进行低通滤波，并用 第一次常数。

公开(公告)号：US06345364B1

公开(公告)日：2002-02-05

申请号：US09287340

申请日：1999-04-07

Applicant: Joo-Hyoung Lee

Inventor： Joo-Hyoung Lee

IPC: G06F126

CPC classification number: G06F1/3265 ,  G06F1/266 ,  G06F1/3203 ,  G09G1/005 ,  G09G2330/02 ,  G09G2330/021 ,  Y02D10/153

Abstract: a power supply of the display apparatus includes a switching mode power supply forming the main power supply of the display apparatus. The power supply of this invention includes an auxiliary power supply for supplying power with a universal serial bus (USB) hub. The power supply further includes a display power management signaling (DPMS) control circuit for managing the power saving between the full-on, standby, suspend, and power-off modes, a relay switch is provided across the power line directed to the main power supply. The DPMS control circuit responds to input status of the horizontal and vertical synchronization signals (Hsync, Vsync) and, in the power-off mode, it produces a control signal that cuts off the relay switch. The power supply of this invention provides a stable supply power with the USB hub even if the display apparatus enters the power-off mode of DPMS. Further, the power supply of this invention can cut off power supply directed to the main power supply when the display apparatus enters the power-off mode.

Abstract translation: 显示装置的电源包括形成显示装置的主电源的开关模式电源。 本发明的电源包括用于向通用串行总线（USB）集线器供电的辅助电源。 电源还包括显示电源管理信号（DPMS）控制电路，用于管理全开，待机，暂停和关机模式之间的功率节省，在指向主电源的电力线之间提供继电器开关 供应。 DPMS控制电路响应水平和垂直同步信号（Hsync，Vsync）的输入状态，并且在断电模式下，它产生切断继电器开关的控制信号。 即使显示装置进入DPMS的断电模式，本发明的电源也提供与USB集线器的稳定供电。 此外，本发明的电源可以在显示装置进入断电模式时切断针对主电源的电源。