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    • 71. 发明授权
    • Semiconductor device comprising a pixel portion and a driver circuit
    • 半导体器件包括像素部分和驱动器电路
    • US08643018B2
    • 2014-02-04
    • US13616019
    • 2012-09-14
    • Shunpei YamazakiJunichiro SakataHiroyuki MiyakeHideaki KuwabaraHideki Uochi
    • Shunpei YamazakiJunichiro SakataHiroyuki MiyakeHideaki KuwabaraHideki Uochi
    • H01L29/04H01L29/10H01L27/14H01L27/12
    • H01L27/1225H01L27/124H01L29/45
    • An object is to improve the aperture ratio of a semiconductor device. The semiconductor device includes a driver circuit portion and a display portion (also referred to as a pixel portion) over the same substrate. The driver circuit includes a channel-etched thin film transistor for driver circuit and a driver circuit wiring formed using metal. Source and drain electrodes of the thin film transistor for the driver circuit are formed using a metal. A channel layer of the thin film transistor for the driver circuit is formed using an oxide semiconductor. The display portion includes a bottom-contact thin film transistor for a pixel and a display portion wiring formed using an oxide conductor. Source and drain electrode layers of the thin film transistor for the pixel are formed using an oxide conductor. A semiconductor layer of the thin film transistor for the pixel is formed using an oxide semiconductor.
    • 目的是提高半导体器件的开口率。 半导体器件包括驱动器电路部分和在同一衬底上的显示部分(也称为像素部分)。 驱动器电路包括用于驱动电路的通道蚀刻薄膜晶体管和使用金属形成的驱动电路布线。 用于驱动电路的薄膜晶体管的源极和漏极由金属形成。 使用氧化物半导体形成用于驱动电路的薄膜晶体管的沟道层。 显示部分包括用于像素的底接触薄膜晶体管和使用氧化物导体形成的显示部分布线。 用于像素的薄膜晶体管的源极和漏极电极层使用氧化物导体形成。 使用氧化物半导体形成用于像素的薄膜晶体管的半导体层。
    • 73. 发明授权
    • Light emitting device
    • 发光装置
    • US08605076B2
    • 2013-12-10
    • US13332491
    • 2011-12-21
    • Tomoyuki IwabuchiHiroyuki Miyake
    • Tomoyuki IwabuchiHiroyuki Miyake
    • G09G5/00
    • G09G3/3266G09G3/3233G09G3/3275G09G2300/0861G09G2300/0871G09G2320/0223G09G2320/0242G09G2320/041G09G2320/043G09G2330/021
    • Power consumption required for charging and discharging a source signal line is reduced in an active matrix EL display device. A bipolar transistor (Bi1) has a base terminal B connected to an output terminal c1 of an operational amplifier (OP1), a collector terminal C connected to a low power potential (GND), and an emitter terminal E connected to a resistor R2. A high power potential (VBH) is a potential in synchronization with a high power potential of a light emitting element. A potential of the output terminal c1 of the operational amplifier (OP1) is outputted as a buffer low power potential (VBL). The low power potential (VBL) corresponds to a potential difference between the high power potential (VBH) and a high power potential (V1). Accordingly, the low power potential (VBL) can follow the high power potential (VBH), that is a high power potential of the light emitting element.
    • 在有源矩阵EL显示装置中减少了对源极信号线的充电和放电所需的功耗。 双极晶体管(Bi1)具有连接到运算放大器(OP1)的输出端c1,连接到低功率电位(GND)的集电极端子C)和连接到电阻器R2的发射极端子E的基极端子B. 高功率电位(VBH)是与发光元件的高功率电位同步的电位。 输出运算放大器(OP1)的输出端子c1的电位作为缓冲器低功率电位(VBL)。 低功率电位(VBL)对应于高功率电位(VBH)和高功率电位(V1)之间的电位差。 因此,低功率电位(VBL)可以跟随发光元件的高功率电位的高功率电位(VBH)。
    • 78. 发明申请
    • Display Device
    • 显示设备
    • US20130033475A1
    • 2013-02-07
    • US13560133
    • 2012-07-27
    • Hiroyuki Miyake
    • Hiroyuki Miyake
    • G09G5/00
    • G09G5/00G09G3/3241G09G2300/0814G09G2300/0819G09G2300/0842
    • In a display device including a pixel in which a driving transistor and a light-emitting element connected to a source of the driving transistor are provided, a display defect is suppressed. Before a period in which the driving transistor supplies a current to the light-emitting element, a voltage which has substantially the same level as a voltage which is applied to one electrode and the other electrode of a capacitor is kept as a voltage between a gate and the source of the driving transistor in the period. Specifically, a node where the one electrode of the capacitor and the gate of the driving transistor are electrically connected to each other in the period is made in a floating state, and the other electrode of the capacitor and the source of the driving transistor are electrically connected to each other.
    • 在包括其中提供驱动晶体管和连接到驱动晶体管的源极的发光元件的像素的显示装置中,抑制了显示缺陷。 在驱动晶体管向发光元件提供电流的时段之前,将与施加到电极的一个电极和另一个电极的电压基本相同的电压保持为栅极之间的电压 和这个时期的驱动晶体管的源头。 具体地说,将电容器的一个电极和驱动晶体管的栅极在该周期中彼此​​电连接的节点设为浮置状态,电容器的另一个电极和驱动晶体管的源极电 相互连接。
    • 79. 发明授权
    • Display device and driving method thereof
    • 显示装置及其驱动方法
    • US08338835B2
    • 2012-12-25
    • US12877567
    • 2010-09-08
    • Hiroyuki Miyake
    • Hiroyuki Miyake
    • H01L31/14
    • H01L27/1255G09G3/325G09G2300/0439G09G2300/0819G09G2300/0852G09G2300/0866G09G2310/0262G09G2310/027H01L27/1266
    • A display device in which not only a variation in a current value due to a threshold voltage but also a variation in a current value due to mobility are prevented from influencing luminance with respect to all the levels of grayscale to be displayed. After applying an initial potential for correction to a gate and a drain of a driving transistor, the gate and the drain of the driving transistor is kept connected in a floating state, and a voltage is held in a capacitor before a voltage between the gate and a source of the driving transistor becomes equal to a threshold voltage. When a voltage obtained by subtracting the voltage held in the capacitor from a voltage of a video signal is applied to the gate and the source of the driving transistor, a current is supplied to a light-emitting element. A value of an initial voltage for correction differs in accordance with the voltage of the video signal.
    • 一种显示装置,其中不仅由于阈值电压导致的电流值的变化,而且由于移动性而导致的电流值的变化也不会影响要显示的所有灰度级别的亮度。 在向驱动晶体管的栅极和漏极施加初始电位后,驱动晶体管的栅极和漏极保持连接为浮置状态,并且在栅极与栅极之间的电压之前将电压保持在电容器中 驱动晶体管的源极等于阈值电压。 当通过从视频信号的电压中减去保持在电容器中的电压获得的电压被施加到驱动晶体管的栅极和源极时,电流被提供给发光元件。 用于校正的初始电压的值根据视频信号的电压而不同。