ACTIVE MATRIX LIGHT EMITTING DIODE PICTURE ELEMENT STRUCTURE AND METHOD

    公开(公告)号:JPH11219146A

    公开(公告)日:1999-08-10

    申请号:JP31156998

    申请日:1998-09-28

    Abstract: PROBLEM TO BE SOLVED: To reduce uneveness of a current in a light emitting diode(LED) so as to improve uniformity of luminance by composing picture element structure of NMOS transistors, a capacitor and the LED. SOLUTION: Picture element structure 300 is composed of five NMOS transistors 310-350, a capacitor 302 and an LED 304. A selection line 370 is connected to a gate of the transistor 350, and a data line 360 is connected to one terminal of the capacitor 302. An auto-zero line 380 is connected to a gate of the transistor 340, and a VDD line 390 is connected to the drains of the transistors 320, 220. One terminal of the capacitor 302 is connected to the source of the transistor 330 and the drains of the transistors 340, 350, and the sources of the transistors 310, 320 are connected to one terminal of the LED 304. With this constitution, unevenness of a current can be reduced in the LED 304.

    LINE SCANNING CIRCUIT FOR A DUAL-MODE DISPLAY
    3.
    发明申请
    LINE SCANNING CIRCUIT FOR A DUAL-MODE DISPLAY 审中-公开
    用于双模式显示的线扫描电路

    公开(公告)号:WO0019476A3

    公开(公告)日:2000-07-27

    申请号:PCT/US9920217

    申请日:1999-09-02

    Applicant: SARNOFF CORP

    Abstract: A row-select circuit (118) for an organic light emitting diode display (116) propagates a gating pulse through a shift register. This gating pulse is synchronized with a system clock signal and is used to selectively apply a plurality of broadcast control signals to a selected row of pixels on the display (116). The line scanning circuitry (118) is controlled to clear and autozero the pixels in the display (116) either on line at a time or the entire image frame at a time. According to another aspect of the invention, the clearing of a row of pixels in the display (116) is performed over several line intervals before the row is autozeroed and loaded with new values. According to yet another aspect of the invention, the broadcast control signals may be adapted to achieve the best performance for each display device.

    Abstract translation: 用于有机发光二极管显示器(116)的行选择电路(118)通过移位寄存器传播选通脉冲。 该选通脉冲与系统时钟信号同步,并用于选择性地将多个广播控制信号施加到显示器(116)上的选定行像素。 线扫描电路(118)被控制以一次在线清除和自动调整显示器(116)中的像素或一次在整个图像帧处。 根据本发明的另一方面,在行被自动调整并加载新值之前,在几行间隔上执行显示器(116)中的一行像素的清除。 根据本发明的又一个方面,广播控制信号可以适合于为每个显示设备实现最佳性能。

    LIQUID CRYSTAL DISPLAY PIXEL WITH INCREASED VOLTAGE MODULATION CAPABILITY
    4.
    发明申请
    LIQUID CRYSTAL DISPLAY PIXEL WITH INCREASED VOLTAGE MODULATION CAPABILITY 审中-公开
    液晶显示像素具有提高的电压调节能力

    公开(公告)号:WO0055681A2

    公开(公告)日:2000-09-21

    申请号:PCT/US0006726

    申请日:2000-03-15

    CPC classification number: G09G3/3659 G09G2300/0814

    Abstract: A liquid crystal display pixel is presented that maintains voltage modulation capability across a liquid crystal display pixel while keeping sustainable voltages across the junctions of the gate transistor for fine semiconductor fabrication processes. In one embodiment of the present invention, a liquid crystal display pixel includes a first gate transistor and a second gate transistor coupled in series from a substrate of the liquid crystal display pixel to a driving voltage line. The configuration prevents unsustainable voltages from appearing across the junctions of any single gate transistor while maintaining voltage modulation across a liquid crystal. In a second embodiment of the present invention, a liquid crystal display pixel with frame store capability includes a further clamping transistor to prevent high transient voltage from appearing across the junctions of any single gate transistor. The configuration prevents unsustainable voltages from appearing across the junctions of any single gate transistor while maintaining voltage modulation across a liquid crystal.

    Abstract translation: 提出了一种液晶显示像素,其保持跨液晶显示像素的电压调制能力,同时在用于精细半导体制造工艺的栅极晶体管的结点处保持可持续电压。 在本发明的一个实施例中,液晶显示像素包括从液晶显示像素的基板到驱动电压线串联耦合的第一栅极晶体管和第二栅极晶体管。 该配置防止在任何单个栅极晶体管的结点之间出现不可持续的电压,同时保持跨液晶的电压调制。 在本发明的第二实施例中,具有帧存储能力的液晶显示像素包括另外的钳位晶体管,以防止在任何单个栅极晶体管的结点之间出现高的瞬态电压。 该配置防止在任何单个栅极晶体管的结点之间出现不可持续的电压,同时保持跨液晶的电压调制。

    A CONTINUOUS ILLUMINATION PLASMA DISPLAY PANEL
    6.
    发明申请
    A CONTINUOUS ILLUMINATION PLASMA DISPLAY PANEL 审中-公开
    连续照明等离子显示面板

    公开(公告)号:WO0043980A9

    公开(公告)日:2001-11-01

    申请号:PCT/US0001799

    申请日:2000-01-24

    Applicant: SARNOFF CORP

    Abstract: A three electrode plasma display panel (PDP) operates in concurrent sustain (26) and addressing (24) periods, rather than separating the sustain and addressing periods (26 and 24). Because of this concurrent operation, a PDP with a brighter display is produced. Crosstalk between sustain electrodes and the column electrodes of non-selected rows is mitigated by implementing column voltages such that there is no difference in crosstalk brightness level in non-addressed pixels in the on state compared to non-addressed pixels in the off state. This is accomplished by choosing column voltages that are approximately symmetric about one-half of the sustain voltage.

    Abstract translation: 三电极等离子体显示面板(PDP)在并行维持(26)和寻址(24)周期中操作,而不是分离维持和寻址周期(26和24)。 由于这种并发操作,产生了具有更亮显示的PDP。 通过实施列电压来减轻维持电极和非选择行的列电极之间的串扰,使得与处于断开状态的非寻址像素相比,处于导通状态的非寻址像素中的串扰亮度级别没有差异。 这通过选择约维持电压的一半左右近似对称的列电压来实现。

    A continuous illumination plasma display panel

    公开(公告)号:AU3582900A

    公开(公告)日:2000-08-07

    申请号:AU3582900

    申请日:2000-01-24

    Applicant: SARNOFF CORP

    Abstract: A three electrode plasma display panel (PDP) operates in concurrent sustain and addressing periods, rather than separating the sustain and addressing periods. Because of this concurrent operation, a PDP with a brighter display is produced. Crosstalk between sustain electrodes and the column electrodes of non-selected rows is mitigated by implementing column voltages such that there is no difference in crosstalk brightness levels in non-addressed pixels in the on state compared to non-addressed pixels in the off state. This is accomplished by choosing column voltages that are approximately symmetric about one-half of the sustain voltage.

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