JP2007294278A5 - - Google Patents
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- Publication number
- JP2007294278A5 JP2007294278A5 JP2006121462A JP2006121462A JP2007294278A5 JP 2007294278 A5 JP2007294278 A5 JP 2007294278A5 JP 2006121462 A JP2006121462 A JP 2006121462A JP 2006121462 A JP2006121462 A JP 2006121462A JP 2007294278 A5 JP2007294278 A5 JP 2007294278A5
- Authority
- JP
- Japan
- Prior art keywords
- pwm
- duty
- controlling
- control means
- backlight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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- 230000010355 oscillation Effects 0.000 claims 2
Claims (1)
前記ＰＷＭ調光手段から入力されるＰＷＭパルスのＤｕｔｙに基づいてＰＷＭパルスの逓倍率を制御する発振制御手段と、
バックライトを調整するためのユーザーの入力を検知するユーザーＩ／Ｆ手段と、
前記ＰＷＭ調光手段を制御して前記ユーザーＩ／Ｆ手段からの情報を基に前記ＰＷＭ調光手段からの出力されるＰＷＭパルスのＤｕｔｙ制御し、前記ＰＷＭ調光手段から出力されたＰＷＭパルスのＤｕｔｙが任意のＤｕｔｙから１００％に変化する際に前記逓倍率を段階的に減少させるように前記発振制御手段を制御する制御手段
を備えたバックライト調光装置。 PWM dimming means for generating PWM pulses for controlling the brightness of the backlight;
Oscillation control means for controlling the multiplication rate of the PWM pulse based on the duty of the PWM pulse input from the PWM dimming means;
User I / F means for detecting user input for adjusting the backlight;
Wherein by controlling the PWM dimming means and Duty control of the outputted PWM pulses from the PWM light control means based on information from the user I / F unit, a PWM pulse output from the PWM dimming means Duty backlight dimmer apparatus having a control means for controlling said oscillation control means so as to reduce stepwise the multiplying factor when changing to 100% from any Duty.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006121462A JP2007294278A (en) | 2006-04-26 | 2006-04-26 | Backlight dimming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006121462A JP2007294278A (en) | 2006-04-26 | 2006-04-26 | Backlight dimming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2007294278A JP2007294278A (en) | 2007-11-08 |
| JP2007294278A5 true JP2007294278A5 (en) | 2009-05-28 |
Family
ID=38764685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006121462A Withdrawn JP2007294278A (en) | 2006-04-26 | 2006-04-26 | Backlight dimming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2007294278A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5661364B2 (en) * | 2010-07-27 | 2015-01-28 | 株式会社東芝 | Video output device and backlight control method |
-
2006
- 2006-04-26 JP JP2006121462A patent/JP2007294278A/en not_active Withdrawn
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