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公开(公告)号：US09537505B2
公开(公告)日：2017-01-03
申请号：US14847281
申请日：2015-09-08
Applicant: LAPIS SEMICONDUCTOR CO., LTD.
Inventor： Hiroyoshi Ichikura , Kunihiro Harayama , Hideaki Hasegawa
CPC classification number: H03M9/00 , H03K3/037 , H04L7/0004 , H04L7/0337 , H04L7/044
Abstract: A data processing apparatus includes an inputting portion; a first retrieving portion; a second retrieving portion; a clock determining portion; a first serial parallel converting portion; a second serial parallel converting portion; and a combining portion. The inputting portion receives a serial data including a clock bit. The first retrieving portion obtains a first retrieved data. The second retrieving portion obtains a second retrieved data. The clock determining portion determines whether the clock bit is included in the first retrieved data or the second retrieved data. The first serial parallel converting portion performs parallel conversion to obtain a first parallel data. The second serial parallel converting portion performs parallel conversion to obtain a second parallel data. The combining portion combines the first parallel data and the second parallel data to output a parallel data.
Abstract translation: 数据处理装置包括输入部分; 第一检索部分; 第二检索部分; 时钟确定部分; 第一串行并行转换部分; 第二串行并行转换部分; 和组合部分。 输入部分接收包括时钟位的串行数据。 第一检索部分获得第一检索数据。 第二检索部分获得第二检索数据。 时钟确定部分确定时钟位是否包括在第一检索数据或第二检索数据中。 第一串行并行转换部分执行并行转换以获得第一并行数据。 第二串行并行转换部分执行并行转换以获得第二并行数据。 组合部分组合第一并行数据和第二并行数据以输出并行数据。
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公开(公告)号：US12094402B2
公开(公告)日：2024-09-17
申请号：US17442211
申请日：2020-03-30
Applicant: LAPIS Semiconductor Co., Ltd.
Inventor： Hiroyoshi Ichikura
IPC: G09G3/3208
CPC classification number: G09G3/3208 , G09G2330/021
Abstract: A display driving device includes a high voltage operating unit obtaining an operating current according to the application of the high power supply voltage from the first voltage application line; a low voltage operating unit that operates according to an application of a low power supply voltage to control the high voltage operating unit; a recycling circuit that receives the operating current from the high voltage operating unit via a relay coupling line and applies the low power supply voltage to the low voltage operating unit while supplying the received operating current to a reference potential line via the low voltage operating unit; and a current bypass circuit that flows a part of the operating current flowing through the relay coupling line into the reference potential line without supplying the part of the operating current to the recycling circuit according to a voltage increase in the low power supply voltage.
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公开(公告)号：US11798509B2
公开(公告)日：2023-10-24
申请号：US17602243
申请日：2020-04-10
Applicant: LAPIS Semiconductor Co., Ltd.
Inventor： Hiroyoshi Ichikura
CPC classification number: G09G3/3648 , G09G3/20 , G09G3/3677 , G09G3/3688 , G09G2310/0275 , G09G2310/0297 , G09G2310/08
Abstract: A display driver drives a display device including a plurality of data lines and a demultiplexer. The demultiplexer includes a plurality of first switches connected to the respective plurality of data lines, and a series of driving voltages including a plurality of driving voltages is supplied via a first wiring. The demultiplexer supplies the plurality of driving voltages to the respective plurality of data lines via the plurality of first switches. The display driver includes: a voltage multiplexing part that generates the series of driving voltages; a second switch connected between the voltage multiplexing part and the first wiring; and a controller connected to the plurality of first switches and the second switch. The controller switches the second switch from an on state to an off state during a first period and sets the two first switches corresponding to the two data lines to the on state such that the two data lines and the first wiring are connected during a second period that is a part of the first period and in which the second switch is in the off state.
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Patent Agency Ranking
公开(公告)号：US11011111B2
公开(公告)日：2021-05-18
申请号：US16788687
申请日：2020-02-12
Applicant: LAPIS Semiconductor Co., Ltd.
Inventor： Hiroyoshi Ichikura , Hiroki Aizawa , Takeshi Nosaka
IPC: G09G3/3233 , G05F3/08
Abstract: A display driving device comprising: a high supply voltage operation unit that generates an operating current under application of a high supply voltage so as to supply driving voltages to a display panel; a low supply voltage operation unit that operates under the application of a low supply voltage lower than the high supply voltage and controls the high supply voltage operation unit; and a reuse circuit that receives the operating current from the high supply voltage operation unit and supplies the operating current to a ground side via the low supply voltage operation unit so as to apply the low supply voltage to the low supply voltage operation unit.
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公开(公告)号：US10121721B2
公开(公告)日：2018-11-06
申请号：US14965897
申请日：2015-12-10
Applicant: LAPIS Semiconductor Co., Ltd.
Inventor： Hiroyoshi Ichikura
IPC: H01L23/34 , H01L21/00 , H05K7/16 , H01L23/367 , G09G3/36 , G02F1/1333 , H01L23/00 , H01L23/522
Abstract: A dummy bump electrode for heat-dissipating is provided on a surface of a semiconductor chip. The semiconductor chip is mounted on a wiring substrate. A lead line is formed on the wiring substrate. The heat-dissipating bump electrode and a lead line are connected to each other through a heat dissipation pattern, thereby efficiency of the heat dissipation is improved.
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公开(公告)号：US10580357B2
公开(公告)日：2020-03-03
申请号：US15962861
申请日：2018-04-25
Applicant: LAPIS Semiconductor Co., Ltd.
Inventor： Hiroyoshi Ichikura , Hiroki Aizawa , Takeshi Nosaka
IPC: G09G3/3233 , G05F3/08
Abstract: A display driving device comprising: a high supply voltage operation unit that generates an operating current under application of a high supply voltage so as to supply driving voltages to a display panel; a low supply voltage operation unit that operates under the application of a low supply voltage lower than the high supply voltage and controls the high supply voltage operation unit; and a reuse circuit that receives the operating current from the high supply voltage operation unit and supplies the operating current to a ground side via the low supply voltage operation unit so as to apply the low supply voltage to the low supply voltage operation unit.
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公开(公告)号：US09666143B2
公开(公告)日：2017-05-30
申请号：US14855376
申请日：2015-09-15
Applicant: LAPIS Semiconductor Co., Ltd.
Inventor： Hiroyoshi Ichikura , Koji Higuchi
CPC classification number: G09G3/36 , H03F1/0205 , H03F1/303 , H03F3/45 , H03F3/45179 , H03F3/45183 , H03F3/45475 , H03F2203/45044 , H03F2203/45116 , H03F2203/45166
Abstract: An amplifying circuit includes a first differential amplifier (first differential pair) and a second differential amplifier (second differential pair) having an input capacitance smaller than the first differential amplifier. The amplifying circuit switches between the first differential amplifier (first differential pair) and the second differential amplifier (second differential pair) in response to an amplification mode setting signal to perform amplification processing of an input signal.
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公开(公告)号：US08729961B2
公开(公告)日：2014-05-20
申请号：US13754451
申请日：2013-01-30
Applicant: Lapis Semiconductor Co., Ltd.
Inventor： Hiroyoshi Ichikura
IPC: H03F1/02
CPC classification number: H03F3/45076 , H03F3/45928
Abstract: A voltage output device capable of preventing an increase in circuit scale includes an offset compensation function and is suitably applicable to a drive circuit for display devices. The voltage output device includes an operational amplifier having an inverting input terminal and a non-inverting input terminal. Resistance values of a load resistor on the inverting input side and a load resistor on the non-inverting input side are maintained when the output voltage of the amplifier has changed while sequentially varying either one or both of the resistance values of the load resistor on the inverting input side and the load resistor on the non-inverting input side in a state that the inverting input terminal and the non-inverting input terminal are connected. The voltage output device is configured to output the output voltage of the amplifier with the inverting input terminal not connected to the non-inverting input terminal.
Abstract translation: 能够防止电路规模增加的电压输出装置包括偏移补偿功能，适用于显示装置的驱动电路。 电压输出装置包括具有反相输入端和非反相输入端的运算放大器。 当反相输入侧的负载电阻器和非反相输入侧的负载电阻器的电阻值在放大器的输出电压发生变化时保持不变，同时依次改变负载电阻器的电阻值的一个或两个 在反相输入端和非反相输入端连接的状态下，在非反相输入侧的反相输入侧和负载电阻。 电压输出装置配置为输出放大器的输出电压，反相输入端子不连接到同相输入端子。
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