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1. 发明专利

JP2013109358A Liquid crystal display device and signal processing method 审中-公开
标题翻译：液晶显示装置和信号处理方法
公开(公告)号：JP2013109358A
公开(公告)日：2013-06-06
申请号：JP2012281871
申请日：2012-12-25
申请人： Nlt Technologies Ltd , Nltテクノロジー株式会社
发明人： OTA SHINJI
IPC分类号： G09G3/36 , G02F1/133 , G09G3/20
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal display device which is capable of suppressing generation of EMI noises while realizing miniaturization and thinning of a signal processing board even if image data is transmitted at a high speed.SOLUTION: An embodiment comprises a timing controller 14a to output, in accordance with a video signal in, a first controlling signal ct1, data signals da, db, and clock signals ca, cb to data line driving circuits 12, 12, 12, 12, 12, and to output a second controlling signal ct2 to a scanning line driving circuit 13. The timing controller 14a directly supplies the clock signals ca, cb, which correspond respectively to display regions A, B and have different frequencies, to the data line driving circuits 12, 12, 12, 12, 12.
摘要翻译：要解决的问题：提供即使高速传输图像数据，也能够实现信号处理板的小型化和细化的同时抑制EMI噪声的产生的液晶显示装置。解决方案：实施例包括定时控制器14a，以根据视频信号将第一控制信号ct1，数据信号da，db和时钟信号ca，cb输出到数据线驱动电路12 SB SB =“POST”> 1 ，12 2 ，12 3 ，12 4 ，12 5 ，并将第二控制信号ct2输出到扫描线驱动电路13.定时控制器14a直接将时钟信号ca，cb，分别对应于显示区域A，B并且具有不同的频率，数据线驱动电路12 1 ，12 2 12 3 ，12 4 ，12 5 。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2014093274A Light-emitting element drive circuit and display divice 有权
标题翻译：发光元件驱动电路和显示器
公开(公告)号：JP2014093274A
公开(公告)日：2014-05-19
申请号：JP2012244963
申请日：2012-11-07
申请人： Nlt Technologies Ltd , Nltテクノロジー株式会社
发明人： OTA SHINJI
IPC分类号： H05B37/02
CPC分类号： H05B33/0842 , H05B33/0818 , H05B41/282 , Y02B20/346
摘要： PROBLEM TO BE SOLVED: To effectively suppress squeaking at PWM light control on light-emitting element drive circuit.SOLUTION: A light-emitting element drive circuit for light control of a plurality of light-emitting elements by a PWM signal, includes a control circuit for generating a control signal, having greater frequency component than an input PWM signal, by having ON periods in both of an ON period and an OFF period on an input PWM signal, and drives a plurality of light-emitting elements by the control signal. The control circuit also generates a divided signal, having narrower pulse widths than a passing PWM signal, which is an input PWM signal passed through as it is, or an inverted PWM signal, which is an inverted signal of the input PWM signal, based on the passing PWM signal or the inverted signal, and a delayed PWM signal, which is either a passing PWM signal or an inverted PWM signal, whose ON period is delayed, generates a synthesized control signal synthesized by periodically switching between either the passing PWM signal or the inverted PWM signal and the divided signal, and generates a control signal composed of either the synthesized control signal or an inverted signal generated by inverting the synthesized control signal.
摘要翻译：要解决的问题：有效地抑制发光元件驱动电路上的PWM控制的吱吱声。解决方案：用于通过PWM信号对多个发光元件进行光控制的发光元件驱动电路包括控制电路用于通过在输入PWM信号的ON周期和OFF周期中具有ON周期来产生具有比输入PWM信号更大的频率分量的控制信号，并通过控制信号驱动多个发光元件。控制电路还产生具有比作为输入PWM信号的通过PWM信号窄的脉冲宽度的分割信号，或者基于输入PWM信号的反相信号的反相PWM信号，基于通过的PWM信号或反相信号，以及延迟的PWM信号，其是通过PWM信号或反相PWM信号，其导通周期被延迟，产生合成的控制信号，该合成控制信号通过周期性切换通过的PWM信号或反相PWM信号和分频信号，并且产生由合成控制信号或由合成控制信号反相产生的反相信号组成的控制信号。

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