PROBLEM TO BE SOLVED: To make it possible to suppress flickering of display immediately after start-up while performing auto power control (APC) of light sources.SOLUTION: A first control part 100 forcibly turns on, at the start-up, switching means 430 that supplies a power to light sources 13 (13r, 13g, and 13b) emitting different colors of light R, G, and B to turn up the light sources 13, and subsequently automatically turns on or off the switching means 430 so as to bring the intensity SFB of light R, G, and B emitted from the light sources 13 close to a reference value SA set on the basis of an external illuminance.SELECTED DRAWING: Figure 8
【課題】光源のAPC(Auto Power Control)を行いつつ、起動直後の表示のちらつきを抑制することができる。【解決手段】第1の制御部100は、始動時に、異なる色の光R,G,Bを出射する光源13(13r,13g,13b)に電力を供給するスイッチ手段430を強制的にオンさせて、光源13を点灯させた後、光源13が発した光R,G,Bの光強度SFBが、外部照度に基づいて設定される基準値SAに近づくようにスイッチ手段430を自動的にオンまたはオフさせる。【選択図】図8
LIGHT SOURCE DEVICE, DISPLAY, AND HEAD-UP DISPLAY DEVICE
光源装置、表示装置およびヘッドアップディスプレイ装置
22.06.2017
Patent
Elektronische Ressource
Japanisch
IPC: | G09G Anordnungen oder Schaltungen zur Steuerung oder Regelung von Anzeigevorrichtungen mit statischen Mitteln zur Darstellung veränderlicher Informationen , ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS |
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