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    • 5. 发明授权
    • Pixel circuit and display device
    • 像素电路和显示设备
    • US08654291B2
    • 2014-02-18
    • US13504074
    • 2010-10-21
    • Naoki UedaYoshimitsu YamauchiFumiki Nakano
    • Naoki UedaYoshimitsu YamauchiFumiki Nakano
    • G02F1/1337
    • G09G3/367G02F1/13624G09G3/3618G09G3/3655G09G3/3659G09G2300/0814G09G2300/0876
    • A display device in which low power consumption is realized without lowering an aperture ratio is provided. A liquid crystal capacitive element Clc is sandwiched between a pixel electrode 20 and an opposite electrode 80. The pixel electrode 20, one end of a first switch circuit 22, one end of a second switch circuit 23 and a first terminal of a second transistor T2 form an internal node N1. The other terminals of the first switch circuit 22 and the second switch circuit 23 are connected to a source line SL. The second switch circuit 23 is a series circuit composed of a first transistor T1 and a diode D1. A control terminal of the first transistor T1, a second terminal of the second transistor T2 and one end of a boost capacitive element Cbst form an output node N2. The other end of the boost capacitive element Cbst and the control terminal of the second transistor T2 are connected to a boost line BST and a reference line REF, respectively. The diode D1 has a rectifying function from the source line SL to the internal node N1.
    • 提供了一种在不降低开口率的情况下实现低功耗的显示装置。 液晶电容元件Clc被夹在像素电极20和相对电极80之间。像素电极20,第一开关电路22的一端,第二开关电路23的一端和第二晶体管T2的第一端 形成内部节点N1。 第一开关电路22和第二开关电路23的其他端子连接到源极线SL。 第二开关电路23是由第一晶体管T1和二极管D1组成的串联电路。 第一晶体管T1的控制端子,第二晶体管T2的第二端子和升压电容元件Cbst的一端形成输出节点N2。 升压电容元件Cbst的另一端和第二晶体管T2的控制端分别连接到升压线BST和基准线REF。 二极管D1具有从源极线SL到内部节点N1的整流功能。
    • 6. 发明授权
    • Pixel circuit and display apparatus
    • 像素电路和显示设备
    • US08310638B2
    • 2012-11-13
    • US13504609
    • 2010-07-22
    • Yoshimitsu YamauchiNaoki UedaFumiki Nakano
    • Yoshimitsu YamauchiNaoki UedaFumiki Nakano
    • G02F1/1337
    • G09G3/3659G02F1/13624G09G2300/0465G09G2300/0876G09G2300/089G09G2310/08G09G2330/021
    • Disclosed is a display device that can achieve a reduction of power consumption without deteriorating the aperture ratio. A liquid crystal capacitance element (Clc) is formed by being sandwiched between a pixel electrode (20) and an opposite electrode (80). The pixel electrode (20), one end of a first switching circuit (22), one end of a second switching circuit (23), and the first terminal of a second transistor (T2) form an internal node (N1). The other end of the first switching circuit (22) and the other end of the second switching circuit (23) are connected to a source line (SL). The second switching circuit (23) includes a series circuit of a transistor (T1) and a diode (D1), and an output node (N2) is formed of the control terminal of the transistor (T1), the second terminal of the transistor (T2), and one end of a boost capacitance element (Cbst). The other end of the boost capacitance element (Cbst) is connected to a boost line (BST), and the control terminal of the transistor (T2) is connected to a reference line (REF). The diode (D1) has a rectifying function in the direction to the internal node (N1) from the source line (SL).
    • 公开了一种能够在不损害开口率的情况下实现功耗的降低的显示装置。 通过夹在像素电极(20)和相对电极(80)之间形成液晶电容元件(Clc)。 像素电极(20),第一开关电路(22)的一端,第二开关电路(23)的一端和第二晶体管(T2)的第一端子形成内部节点(N1)。 第一开关电路(22)的另一端和第二开关电路(23)的另一端连接到源极线(SL)。 第二开关电路(23)包括晶体管(T1)和二极管(D1)的串联电路,输出节点(N2)由晶体管(T1)的控制端子形成,晶体管的第二端子 (T2)和升压电容元件(Cbst)的一端。 升压电容元件(Cbst)的另一端连接到升压线(BST),晶体管(T2)的控制端子连接到基准线(REF)。 二极管(D1)在从源极线(SL)到内部节点(N1)的方向上具有整流功能。
    • 8. 发明申请
    • PIXEL CIRCUIT AND DISPLAY DEVICE
    • 像素电路和显示设备
    • US20120218246A1
    • 2012-08-30
    • US13504074
    • 2010-10-21
    • Naoki UedaYoshimitsu YamauchiFumiki Nakano
    • Naoki UedaYoshimitsu YamauchiFumiki Nakano
    • G09G5/00
    • G09G3/367G02F1/13624G09G3/3618G09G3/3655G09G3/3659G09G2300/0814G09G2300/0876
    • A display device in which low power consumption is realized without lowering an aperture ratio is provided. A liquid crystal capacitive element Clc is sandwiched between a pixel electrode 20 and an opposite electrode 80. The pixel electrode 20, one end of a first switch circuit 22, one end of a second switch circuit 23 and a first terminal of a second transistor T2 form an internal node N1. The other terminals of the first switch circuit 22 and the second switch circuit 23 are connected to a source line SL. The second switch circuit 23 is a series circuit composed of a first transistor T1 and a diode D1. A control terminal of the first transistor T1, a second terminal of the second transistor T2 and one end of a boost capacitive element Cbst form an output node N2. The other end of the boost capacitive element Cbst and the control terminal of the second transistor T2 are connected to a boost line BST and a reference line REF, respectively. The diode D1 has a rectifying function from the source line SL to the internal node N1.
    • 提供了一种在不降低开口率的情况下实现低功耗的显示装置。 液晶电容元件Clc被夹在像素电极20和相对电极80之间。像素电极20,第一开关电路22的一端,第二开关电路23的一端和第二晶体管T2的第一端 形成内部节点N1。 第一开关电路22和第二开关电路23的其他端子连接到源极线SL。 第二开关电路23是由第一晶体管T1和二极管D1组成的串联电路。 第一晶体管T1的控制端子,第二晶体管T2的第二端子和升压电容元件Cbst的一端形成输出节点N2。 升压电容元件Cbst的另一端和第二晶体管T2的控制端分别连接到升压线BST和基准线REF。 二极管D1具有从源极线SL到内部节点N1的整流功能。