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1. 发明授权

US10199000B2 Source driver IC chip 有权
公开(公告)号：US10199000B2
公开(公告)日：2019-02-05
申请号：US15395089
申请日：2016-12-30
申请人： LAPIS Semiconductor Co., Ltd.
发明人： Kenichi Shiibayashi , Koji Higuchi , Atsushi Hirama
IPC分类号： G09G3/36 , G06F3/038 , G09G5/00 , G09G5/10 , G09G3/34 , G09G3/3266 , G09G3/3258
摘要： A source driver IC chip, designed to prevent flicker in images displayed on a display panel while suppressing power consumption and heat generation, includes: a reference gradation voltage generating part (220) configured to generate a reference gradation voltage based on a first or second gamma characteristic of the display panel, using first and second power supply voltages (VH) and (VL) inputted through first and second external terminals (PA2, PA3); and a third external terminal (PA4) for externally outputting said reference gradation voltage. The source driver IC chip further includes first and second gradation voltage generating parts configured to generate first and second gradation voltages respectively, using a reference gradation voltage based on a first gamma characteristic inputted through a fourth external terminal and a reference gradation voltage having a second gamma characteristic inputted through a fifth external terminal respectively.

2. 发明授权

US09570011B2 Source driver IC chip 有权
标题翻译：源驱动IC芯片
公开(公告)号：US09570011B2
公开(公告)日：2017-02-14
申请号：US15194003
申请日：2016-06-27
申请人： LAPIS Semiconductor Co., Ltd.
发明人： Kenichi Shiibayashi , Koji Higuchi , Atsushi Hirama
IPC分类号： G09G5/10 , G09G3/32 , G09G3/36
CPC分类号： G09G3/3406 , G09G3/3258 , G09G3/3266 , G09G3/3614 , G09G3/3648 , G09G3/3666 , G09G3/3674 , G09G3/3685 , G09G3/3696 , G09G5/10 , G09G2300/04 , G09G2310/027 , G09G2310/0286 , G09G2310/0291 , G09G2310/0297 , G09G2310/08 , G09G2320/0247 , G09G2320/0276 , G09G2320/0626 , G09G2320/0666 , G09G2330/021 , G09G2370/08
摘要： A source driver IC chip, designed to prevent flicker in images displayed on a display panel while suppressing power consumption and heat generation, includes: a reference gradation voltage generating part (220) configured to generate a reference gradation voltage based on a first or second gamma characteristic of the display panel, using first and second power supply voltages (VH) and (VL) inputted through first and second external terminals (PA2, PA3); and a third external terminal (PA4) for externally outputting said reference gradation voltage. The source driver IC chip further includes first and second gradation voltage generating parts configured to generate first and second gradation voltages respectively, using a reference gradation voltage based on a first gamma characteristic inputted through a fourth external terminal and a reference gradation voltage having a second gamma characteristic inputted through a fifth external terminal respectively.
摘要翻译：一种源极驱动器IC芯片，用于在抑制功耗和发热的同时防止在显示面板上显示的图像的闪烁，包括：基准灰度电压产生部件，被配置为基于第一或第二伽玛产生参考灰度电压使用通过第一和第二外部端子（PA2，PA3）输入的第一和第二电源电压（VH）和（VL）的显示面板的特性; 和用于从外部输出所述基准灰度电压的第三外部端子（PA4）。源极驱动器IC芯片还包括第一和第二灰度电压产生部件，其被配置为使用基于通过第四外部端子输入的第一伽马特性的参考灰度电压和具有第二伽玛的参考灰度电压分别产生第一和第二灰度电压分别通过第五外部端子输入的特性。

3. 发明授权

US09406279B2 Source driver IC chip 有权
公开(公告)号：US09406279B2
公开(公告)日：2016-08-02
申请号：US14743890
申请日：2015-06-18
申请人： LAPIS Semiconductor Co., Ltd.
发明人： Kenichi Shiibayashi , Koji Higuchi , Atsushi Hirama
IPC分类号： G09G5/10 , G09G3/36
CPC分类号： G09G3/3406 , G09G3/3258 , G09G3/3266 , G09G3/3614 , G09G3/3648 , G09G3/3666 , G09G3/3674 , G09G3/3685 , G09G3/3696 , G09G5/10 , G09G2300/04 , G09G2310/027 , G09G2310/0286 , G09G2310/0291 , G09G2310/0297 , G09G2310/08 , G09G2320/0247 , G09G2320/0276 , G09G2320/0626 , G09G2320/0666 , G09G2330/021 , G09G2370/08
摘要： A source driver IC chip, designed to prevent flicker in images displayed on a display panel while suppressing power consumption and heat generation, includes: a reference gradation voltage generating part (220) configured to generate a reference gradation voltage based on a first or second gamma characteristic of the display panel, using first and second power supply voltages (VH) and (VL) inputted through first and second external terminals (PA2, PA3); and a third external terminal (PA4) for externally outputting said reference gradation voltage. The source driver IC chip further includes first and second gradation voltage generating parts configured to generate first and second gradation voltages respectively, using a reference gradation voltage based on a first gamma characteristic inputted through a fourth external terminal and a reference gradation voltage having a second gamma characteristic inputted through a fifth external terminal respectively.

4. 发明授权

US09799265B2 Display drive circuit including an output terminal 有权
公开(公告)号：US09799265B2
公开(公告)日：2017-10-24
申请号：US15424766
申请日：2017-02-03
申请人： LAPIS Semiconductor Co., Ltd.
发明人： Atsushi Hirama
IPC分类号： G09G5/00 , G09G3/3225 , G09G3/3266 , G09G3/3275 , H01L27/32
CPC分类号： G09G3/3225 , G09G3/3208 , G09G3/3216 , G09G3/3266 , G09G3/3275 , G09G2300/0408 , G09G2300/0426 , G09G2320/0223 , G09G2320/0233 , G09G2330/021 , H01L21/76897 , H01L27/3279 , H01L2224/0554 , H01L2224/0557 , H01L2224/05571 , H01L2224/05573 , H01L2224/16 , H01L2224/17154 , H01L2924/00014 , H01L2924/01079 , H01L2924/12044 , H01L2924/19043 , H01L2924/3011 , H01L2924/00 , H01L2224/05599 , H01L2224/0555 , H01L2224/0556
摘要： A display drive circuit formed in a chip manufactured by a chip on glass implementation, which is connected to lead lines formed on a glass substrate, includes a rectangularly-shaped substrate, a power supply line formed on the substrate, the line being elongated along the longer side of the rectangular shaped substrate, a plurality of output terminals formed on the rectangular shaped substrate, the output terminal being disposed along the power supply line, a plurality of bump electrodes, each of which connects one of the output terminal to one of the lead lines, switches disposed along the power supply line, each of which is connected between the one of the output terminals and the power supply line, a single power supply terminal, which is disposed near the middle of the power supply line, being connected to the power supply line.

5. 发明授权

US09208716B2 Display drive circuit including an output terminal 有权
标题翻译：显示驱动电路包括输出端子
公开(公告)号：US09208716B2
公开(公告)日：2015-12-08
申请号：US14190495
申请日：2014-02-26
申请人： Lapis Semiconductor Co., Ltd.
发明人： Atsushi Hirama
IPC分类号： G09G5/00 , G09G3/32 , H01L21/768
CPC分类号： G09G3/3225 , G09G3/3208 , G09G3/3216 , G09G3/3266 , G09G3/3275 , G09G2300/0408 , G09G2300/0426 , G09G2320/0223 , G09G2320/0233 , G09G2330/021 , H01L21/76897 , H01L27/3279 , H01L2224/0554 , H01L2224/0557 , H01L2224/05571 , H01L2224/05573 , H01L2224/16 , H01L2224/17154 , H01L2924/00014 , H01L2924/01079 , H01L2924/12044 , H01L2924/19043 , H01L2924/3011 , H01L2924/00 , H01L2224/05599 , H01L2224/0555 , H01L2224/0556
摘要： A display drive circuit formed in a chip manufactured by a chip on glass implementation, which is connected to lead lines formed on a glass substrate, includes a rectangularly-shaped substrate, a power supply line formed on the substrate, the line being elongated along the longer side of the rectangular shaped substrate, a plurality of output terminals formed on the rectangular shaped substrate, the output terminal being disposed along the power supply line, a plurality of bump electrodes, each of which connects one of the output terminal to one of the lead lines, switches disposed along the power supply line, each of which is connected between the one of the output terminals and the power supply line, a single power supply terminal, which is disposed near the middle of the power supply line, being connected to the power supply line.
摘要翻译：形成在与玻璃基板上形成的引线连接的由玻璃实施方式制造的芯片中形成的显示驱动电路包括矩形形状的基板，形成在基板上的电源线，沿着长方形基板的长边，形成在矩形基板上的多个输出端子，输出端子沿着电源线配置，多个凸块电极，每个凸起电极将输出端子中的一个连接到引线，沿着电源线布置的开关，每个开关连接在一个输出端子和电源线之间，设置在电源线中间附近的单个电源端子连接到电源线。

6. 发明授权

US09099026B2 Source driver IC chip 有权
标题翻译：源驱动IC芯片
公开(公告)号：US09099026B2
公开(公告)日：2015-08-04
申请号：US14034408
申请日：2013-09-23
申请人： LAPIS SEMICONDUCTOR CO., LTD.
发明人： Kenichi Shiibayashi , Koji Higuchi , Atsushi Hirama
IPC分类号： G09G5/10 , G09G3/36
CPC分类号： G09G3/3406 , G09G3/3258 , G09G3/3266 , G09G3/3614 , G09G3/3648 , G09G3/3666 , G09G3/3674 , G09G3/3685 , G09G3/3696 , G09G5/10 , G09G2300/04 , G09G2310/027 , G09G2310/0286 , G09G2310/0291 , G09G2310/0297 , G09G2310/08 , G09G2320/0247 , G09G2320/0276 , G09G2320/0626 , G09G2320/0666 , G09G2330/021 , G09G2370/08
摘要： A source driver IC chip, designed to prevent flicker in images displayed on a display panel while suppressing power consumption and heat generation, includes: a reference gradation voltage generating part (220) configured to generate a reference gradation voltage based on a first or second gamma characteristic of the display panel, using first and second power supply voltages (VH) and (VL) inputted through first and second external terminals (PA2, PA3); and a third external terminal (PA4) for externally outputting said reference gradation voltage. The source driver IC chip further includes first and second gradation voltage generating parts configured to generate first and second gradation voltages respectively, using a reference gradation voltage based on a first gamma characteristic inputted through a fourth external terminal and a reference gradation voltage having a second gamma characteristic inputted through a fifth external terminal respectively.
摘要翻译：一种源极驱动器IC芯片，用于在抑制功耗和发热的同时防止在显示面板上显示的图像的闪烁，包括：基准灰度电压产生部件，被配置为基于第一或第二伽玛产生参考灰度电压使用通过第一和第二外部端子（PA2，PA3）输入的第一和第二电源电压（VH）和（VL）的显示面板的特性; 和用于从外部输出所述基准灰度电压的第三外部端子（PA4）。源极驱动器IC芯片还包括第一和第二灰度电压产生部件，其被配置为使用基于通过第四外部端子输入的第一伽马特性的参考灰度电压和具有第二伽玛的参考灰度电压分别产生第一和第二灰度电压分别通过第五外部端子输入的特性。

7. 发明授权

US09589501B2 Display drive circuit including an output terminal 有权
标题翻译：显示驱动电路包括输出端子
公开(公告)号：US09589501B2
公开(公告)日：2017-03-07
申请号：US14932118
申请日：2015-11-04
申请人： LAPIS Semiconductor Co., Ltd.
发明人： Atsushi Hirama
IPC分类号： G06F3/038 , G09G3/32 , H01L21/768 , H01L27/32
CPC分类号： G09G3/3225 , G09G3/3208 , G09G3/3216 , G09G3/3266 , G09G3/3275 , G09G2300/0408 , G09G2300/0426 , G09G2320/0223 , G09G2320/0233 , G09G2330/021 , H01L21/76897 , H01L27/3279 , H01L2224/0554 , H01L2224/0557 , H01L2224/05571 , H01L2224/05573 , H01L2224/16 , H01L2224/17154 , H01L2924/00014 , H01L2924/01079 , H01L2924/12044 , H01L2924/19043 , H01L2924/3011 , H01L2924/00 , H01L2224/05599 , H01L2224/0555 , H01L2224/0556
摘要： A display drive circuit formed in a chip manufactured by a chip on glass implementation, which is connected to lead lines formed on a glass substrate, includes a rectangularly-shaped substrate, a power supply line formed on the substrate, the line being elongated along the longer side of the rectangular shaped substrate, a plurality of output terminals formed on the rectangular shaped substrate, the output terminal being disposed along the power supply line, a plurality of bump electrodes, each of which connects one of the output terminal to one of the lead lines, switches disposed along the power supply line, each of which is connected between the one of the output terminals and the power supply line, a single power supply terminal, which is disposed near the middle of the power supply line, being connected to the power supply line.
摘要翻译：形成在与玻璃基板上形成的引线连接的由玻璃实施方式制造的芯片中形成的显示驱动电路包括矩形形状的基板，形成在基板上的电源线，沿着长方形基板的长边，形成在矩形基板上的多个输出端子，输出端子沿着电源线配置，多个凸块电极，每个凸起电极将输出端子中的一个连接到引线，沿着电源线布置的开关，每个开关连接在一个输出端子和电源线之间，设置在电源线中间附近的单个电源端子连接到电源线。

8. 发明授权

US10818218B2 Display driver and semiconductor device 有权
公开(公告)号：US10818218B2
公开(公告)日：2020-10-27
申请号：US16201766
申请日：2018-11-27
申请人： LAPIS Semiconductor Co., Ltd.
发明人： Koya Sugihara , Atsushi Hirama
IPC分类号： G09G3/20 , G09G3/36 , G09G3/3275
摘要： A display driver includes gradation voltage generation circuits; n DA converters configured to select and output a gradation voltage corresponding to pixel data, out of the gradation voltages generated by the gradation voltage generation circuit; n amplifiers configured to independently amplify n gradation voltages outputted from the DA converters, to generate n amplified gradation voltages; and a selector configured to output the n amplified gradation voltages from n output terminals, respectively, in a normal mode. In a power save mode, one of the gradation voltage generation circuits generates a gradation voltage, and the other gradation voltage generation circuits stop. In the power save mode, the selector outputs selected one of k amplified gradation voltages from k output terminals, and opens an output terminal of each amplifier, except for an amplifier for generating the one amplified gradation voltage, out of the k amplifiers configured to generate the k amplified gradation voltages.

9. 发明授权

US10665164B2 Display driver and semiconductor device 有权
公开(公告)号：US10665164B2
公开(公告)日：2020-05-26
申请号：US15618430
申请日：2017-06-09
申请人： LAPIS Semiconductor Co., Ltd.
发明人： Koji Yamazaki , Atsushi Hirama
IPC分类号： G09G3/3258 , G09G3/34 , G09G5/02 , G09G5/10 , G09G3/3266 , G09G3/3275 , G09G3/36
摘要： A display driver includes a gamma correction data transmission unit that transmits a plurality of gamma correction data pieces one by one in each predetermined period. A brightness level indicated by a video signal is converted into a gradation voltage with a gamma characteristic based on the gamma correction data piece transmitted from the gamma correction data transmission unit.

10. 发明授权

US09202425B2 Device circuit and display apparatus having operational amplifiers with parasitic diodes 有权
标题翻译：具有具有寄生二极管的运算放大器的器件电路和显示装置
公开(公告)号：US09202425B2
公开(公告)日：2015-12-01
申请号：US14052952
申请日：2013-10-14
申请人： LAPIS SEMICONDUCTOR CO., LTD.
发明人： Hideaki Hasegawa , Atsushi Hirama , Koji Higuchi
IPC分类号： G09G3/36
CPC分类号： G09G3/3614 , G09G3/3688
摘要： A driving circuit includes a pair of operational amplifiers, one producing an analog voltage output of positive polarity, the other producing an analog voltage output of negative polarity. An output switching circuit interchanges these outputs between a pair of data lines. One or both of the operational amplifiers includes a parasitic diode having one terminal connected to the output terminal of the operational amplifier and another terminal normally connected to a power supply voltage of the operational amplifier. When the output of the operational amplifier is switched, a protective switching circuit temporarily disconnects the parasitic diode from the power supply of the operational amplifier and instead connects it to a power supply line carrying a voltage high enough, or low enough, to ensure that the parasitic diode is not forward biased by the existing voltage on the data line to which the output is switched.
摘要翻译：驱动电路包括一对运算放大器，一个产生正极性的模拟电压输出，另一个产生负极性的模拟电压输出。输出切换电路将这些输出交换在一对数据线之间。一个或两个运算放大器包括一个寄生二极管，其一个端子连接到运算放大器的输出端子，另一个端子正常连接到运算放大器的电源电压。当运算放大器的输出被切换时，保护开关电路暂时将寄生二极管与运算放大器的电源断开连接，而是将其连接到承载足够高或足够低的电压的电源线，以确保寄生二极管不会被输出切换到的数据线上的现有电压正向偏置。

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