Title:
Signal generation method and circuit to control light emitting diode brightness
Document Type and Number:
Japanese Patent JP6335213
Kind Code:
B2
Abstract:
The present disclosure provides a signal generating method and a circuit for controlling dimming of an LED. The method comprises generating a first pulse signal, the first pulse signal comprising information of P bits gray levels, P being an integer, wherein the minimum pulse-width of the first pulse is N, N is an integer; generating a second pulse signal after the first pulse signal, the second pulse signal comprising information of Q bits gray levels, Q being an integer, wherein the amplitude of the second pulse signal is different from the amplitude of the first pulse signal, the minimum pulse-width of the second pulse is the same as the minimum pulse-width of the first pulse; and utilizing the first pulse signal and the second pulse signal to represent gray levels information of the LED.
Inventors:
Money
Mr. Chen
Mr. Chen
Application Number:
JP2016095139A
Publication Date:
May 30, 2018
Filing Date:
May 11, 2016
Export Citation:
Assignee:
Black Crystal Technology Co., Ltd.
International Classes:
H01L33/00; H05B44/00; G09G3/20; G09G3/32
Domestic Patent References:
| JP2004302041A | ||||
| JP2009016104A | ||||
| JP2000047639A | ||||
| JP2015031874A | ||||
| JP2003316312A | ||||
| JP11329721A |
Attorney, Agent or Firm:
Junichi Omori
Mitsuru Takahashi
Teppei Nakamura
Ori Akira
Masayoshi Sekine
Ayako Kaneko
Shintaro Kanayama
Chiba Ayako
Shiraka Tomohisa
Mitsuru Takahashi
Teppei Nakamura
Ori Akira
Masayoshi Sekine
Ayako Kaneko
Shintaro Kanayama
Chiba Ayako
Shiraka Tomohisa
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