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    • 13. 发明申请
    • REFERENCE VOLTAGE SELECTION CIRCUIT, DISPLAY DRIVER, ELECTRO-OPTICAL DEVICE, AND ELECTRONIC INSTRUMENT
    • 参考电压选择电路,显示驱动器,电光设备和电子仪器
    • US20080316194A1
    • 2008-12-25
    • US12143462
    • 2008-06-20
    • Akira MORITA
    • Akira MORITA
    • G06F3/038H03L5/02
    • G09G3/3648G09G3/3677G09G3/3696G09G2310/0289G09G2320/0276
    • A reference voltage selection circuit includes a first switch element SW1 that outputs a first selection voltage among first to third selection voltages as a first reference voltage among first and second reference voltages, a second switch element SW2 that outputs the second selection voltage as the first reference voltage, a third switch element SW3 that outputs the second selection voltage as the second reference voltage, and a fourth switch element SW4 that outputs the third selection voltage as the second reference voltage. The first to fourth switch elements SW1 to SW4 are ON/OFF-controlled using gamma correction data that contains at least three bits. When the first selection voltage is a ground power supply voltage, reliability can be improved by protecting the first switch element.
    • 参考电压选择电路包括:第一开关元件SW1,其在第一和第三选择电压之间输出第一选择电压作为第一和第二参考电压中的第一参考电压;第二开关元件SW2,其输出第二选择电压作为第一参考 输出第二选择电压作为第二参考电压的第三开关元件SW3和输出第三选择电压作为第二参考电压的第四开关元件SW4。 第一至第四开关元件SW1至SW4使用包含至少三位的伽马校正数据进行ON / OFF控制。 当第一选择电压是地电源电压时,可以通过保护第一开关元件来提高可靠性。
    • 14. 发明授权
    • Display driver, display device, and display drive method
    • 显示驱动程序,显示设备和显示驱动方式
    • US07327341B2
    • 2008-02-05
    • US10760518
    • 2004-01-21
    • Yuichi ToriumiAkira Morita
    • Yuichi ToriumiAkira Morita
    • G09G3/36G09G5/00G06F3/038
    • G09G3/3648G09G3/3208G09G2310/0267G09G2310/027G09G2310/04G09G2330/021
    • A display driver includes a front drawing row designation register, a partial mode setting register, a data line driver circuit having an operational amplifier section and a partial non-display voltage output section, and a partial display control section. The front drawing row designation register is a register for designating one of the scanning lines corresponding to a front drawing row. The partial mode setting register is a register which sets for the scanning lines either a normal display mode in which a drive voltage depending on gray-scale data is supplied to at least one of the data lines, or a partial non-display mode in which a partial non-display voltage is supplied to at least one of the data lines. The operational amplifier section drives at least one of the data lines based on the drive voltage. The partial non-display voltage output section drives at least one of the data lines based on the partial non-display voltage. The partial display control section controls the data line driver circuit.
    • 显示驱动器包括前排行指定寄存器,部分模式设置寄存器,具有运算放大器部分和部分非显示电压输出部分的数据线驱动器电路和部分显示控制部分。 前排行指定寄存器是用于指定对应于前排行的扫描线之一的寄存器。 部分模式设置寄存器是一个寄存器,用于将扫描线设为正常显示模式,其中依赖于灰度数据的驱动电压被提供给数据线中的至少一个,或者部分模式设置寄存器的部分非显示模式,其中 部分非显示电压被提供给数据线中的至少一个。 运算放大器部分基于驱动电压驱动至少一条数据线。 部分非显示电压输出部分基于部分非显示电压来驱动数据线中的至少一个。 部分显示控制部分控制数据线驱动电路。
    • 19. 发明申请
    • Reference voltage generation circuit, display driver, electro-optical device, and electronic instrument
    • 参考电压发生电路,显示驱动器,电光器件和电子仪器
    • US20060198009A1
    • 2006-09-07
    • US11365913
    • 2006-03-01
    • Akira Morita
    • Akira Morita
    • G02F1/03G09G5/00
    • G09G3/3688G09G3/2025G09G3/28G09G3/3648G09G3/3696G09G2310/027G09G2310/0286G09G2320/0276
    • A reference voltage generation circuit including: first to Jth (J is an integer greater than one) gamma correction data registers in which gamma correction data for generating a plurality of reference voltages is set; and first to Jth reference voltage select circuits which output K select voltages selected from first to Lth (L is an integer greater than two, and K is a natural number smaller than L) select voltages of each group as first to Kth reference voltages, based on the gamma correction data set in each of the gamma correction data registers, wherein, when the number of frames of one cycle of FRC method is P (P is an integer greater than one), the reference voltage generation circuit outputs the first to Kth reference voltages output from one of Q (2≦Q≦P; Q is an integer) reference voltage select circuits in frame units.
    • 一种参考电压产生电路,包括:第一至第J(J是大于1的整数)伽马校正数据寄存器,其中设置用于产生多个参考电压的伽马校正数据; 和第一至第J参考电压选择电路,其基于第一至第K参考电压输出从第一至第L(L为大于二的整数,K为小于L的自然数)的K个选择电压的选择电压 在每个伽马校正数据寄存器中设置的伽马校正数据中,当FRC方法的一个周期的帧数是P(P是大于1的整数)时,参考电压产生电路输出第一至第K 参考电压以帧为单位从Q(2 <= Q <= P; Q为整数)中的一个输出。