D/A conversion circuit and semiconductor device
    2.
    发明授权
    D/A conversion circuit and semiconductor device 失效
    D / A转换电路和半导体器件

    公开(公告)号:US06738005B2

    公开(公告)日:2004-05-18

    申请号:US10053656

    申请日:2002-01-24

    IPC分类号: H03M166

    摘要: A D/A conversion circuit with a small area is provided. In the D/A conversion circuit, according to a digital signal transmitted from address lines of an address decoder, one of four gradation voltage lines is selected. A circuit including two N-channel TFTs is connected in series to a circuit including two P-channel TFT, and a circuit including the circuits connected in series to each other is connected in parallel to each of the gradation voltage lines. Further, an arrangement of the circuit including the two N-channel TFTs and the circuit including the two P-channel TFTs is reversed for every gradation voltage line. By this, the crossings of wiring lines in the D/A conversion circuit becomes small and the area can be made small.

    摘要翻译: 提供具有小面积的D / A转换电路。 在D / A转换电路中,根据从地址解码器的地址线发送的数字信号,选择四个灰度电压线中的一个。 包括两个N沟道TFT的电路串联连接到包括两个P沟道TFT的电路,并且包括彼此串联连接的电路的电路并联连接到每个灰度电压线。 此外,包括两个N沟道TFT的电路和包括两个P沟道TFT的电路的布置对于每个灰度电压线都是反向的。 由此,D / A转换电路中的布线的交叉变小,可以使面积变小。

    D/A conversion circuit and semiconductor device
    5.
    发明授权
    D/A conversion circuit and semiconductor device 有权
    D / A转换电路和半导体器件

    公开(公告)号:US07184017B2

    公开(公告)日:2007-02-27

    申请号:US11128333

    申请日:2005-05-13

    IPC分类号: G09G3/36

    摘要: A D/A conversion circuit with a small area is provided. In the D/A conversion circuit, according to a digital signal transmitted from address lines of an address decoder, one of four gradation voltage lines is selected. A circuit including two N-channel TFTs is connected in series to a circuit including two P-channel TFT, and a circuit including the circuits connected in series to each other is connected in parallel to each of the gradation voltage lines. Further, an arrangement of the circuit including the two N-channel TFTs and the circuit including the two P-channel TFTs is reversed for every gradation voltage line. By this, the crossings of wiring lines in the D/A conversion circuit becomes small and the area can be made small.

    摘要翻译: 提供具有小面积的D / A转换电路。 在D / A转换电路中,根据从地址解码器的地址线发送的数字信号,选择四个灰度电压线中的一个。 包括两个N沟道TFT的电路串联连接到包括两个P沟道TFT的电路,并且包括彼此串联连接的电路的电路并联连接到每个灰度电压线。 此外,包括两个N沟道TFT的电路和包括两个P沟道TFT的电路的布置对于每个灰度电压线都是反向的。 由此,D / A转换电路中的布线的交叉变小,可以使面积变小。

    D/A conversion circuit and semiconductor device
    7.
    发明授权
    D/A conversion circuit and semiconductor device 失效
    D / A转换电路和半导体器件

    公开(公告)号:US06441758B1

    公开(公告)日:2002-08-27

    申请号:US09197766

    申请日:1998-11-23

    IPC分类号: H03M100

    摘要: A D/A conversion circuit with a small area is provided. In the D/A conversion circuit, according to a digital signal transmitted from address lines of an address decoder, one of four gradation voltage lines is selected. A circuit including two N-channel TFTs is connected in series to a circuit including two P-channel TFT, and a circuit including the circuits connected in series to each other is connected in parallel to each of the gradation voltage lines. Further, an arrangement of the circuit including the two N-channel TFTs and the circuit including the two P-channel TFTs is reversed for every gradation voltage line. By this, the crossings of wiring lines in the D/A conversion circuit becomes small and the area can be made small.

    摘要翻译: 提供具有小面积的D / A转换电路。 在D / A转换电路中,根据从地址解码器的地址线发送的数字信号,选择四个灰度电压线中的一个。 包括两个N沟道TFT的电路串联连接到包括两个P沟道TFT的电路,并且包括彼此串联连接的电路的电路并联连接到每个灰度电压线。 此外,包括两个N沟道TFT的电路和包括两个P沟道TFT的电路的布置对于每个灰度电压线都是反向的。 由此,D / A转换电路中的布线的交叉变小,可以使面积变小。