TWI598717B - Laser dimming system - Google Patents
Laser dimming system Download PDFInfo
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- TWI598717B TWI598717B TW105110481A TW105110481A TWI598717B TW I598717 B TWI598717 B TW I598717B TW 105110481 A TW105110481 A TW 105110481A TW 105110481 A TW105110481 A TW 105110481A TW I598717 B TWI598717 B TW I598717B
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Description
本發明係有關一種雷射調光系統,尤指一種可依外在環境光線亮度調整投射出影像之亮度控制系統。 The invention relates to a laser dimming system, in particular to a brightness control system capable of adjusting an image projected according to the brightness of an external environment.
美國專利號US9167655揭露一種背光調節系統(Backlight Adjustment System),請參閱第1圖所示,該系統具有一環境光感應器170、一背光感應器171以及一溫度感應器175,在一背光120情況下,一軟體驅動裝置190會傳送訊號給一電流測量裝置200,該電流測量裝置200會計算從一電源195傳送之電流強弱,並回報給該軟體驅動裝置190,再從該軟體驅動裝置190傳送訊號給該電源195,令該電源195發送出適當之電量至該電流測量裝置200以調整該背光120之狀態。 US Patent No. 1,916,655 discloses a backlight adjustment system (Backlight Adjustment System). As shown in FIG. 1, the system has an ambient light sensor 170, a backlight sensor 171, and a temperature sensor 175. Next, a software driving device 190 transmits a signal to a current measuring device 200, and the current measuring device 200 calculates the current intensity transmitted from a power source 195, and reports it to the software driving device 190, and then transmits the software to the software driving device 190. The signal is supplied to the power source 195, and the power source 195 sends an appropriate amount of power to the current measuring device 200 to adjust the state of the backlight 120.
台灣專利號I462648揭露一種背光驅動電路以及背光驅動方法,請參閱第2圖所示,該先前技術在開始步驟S410中一控制電路105提供電源VS至一發光二極體單元102之陽極端,接著在步驟S420中一光敏元件104感測周圍之環境光,其中該光敏元件104耦接於該發光二極體單元102之陰極端以及接地之間,且該光敏元件104之阻值隨著電子裝置周圍環境光源而改變,進一步在步 驟S430中該控制電路105根據感測端所接收之回授電壓VFB,調整該電源VS以控制該發光二極體單元102的亮度。 Taiwan Patent No. I462648 discloses a backlight driving circuit and a backlight driving method. Referring to FIG. 2, the prior art provides a power supply VS to the anode terminal of a light emitting diode unit 102 in a starting step S410. In step S420, a photosensitive element 104 senses ambient light, wherein the photosensitive element 104 is coupled between the cathode end of the LED unit 102 and the ground, and the resistance of the photosensitive element 104 follows the electronic device. Change the ambient light source, further step In step S430, the control circuit 105 adjusts the power source VS according to the feedback voltage VFB received by the sensing terminal to control the brightness of the LED unit 102.
有鑑於此,本案發明人本於多年從事相關產品之製造開發與設計經驗,針對上述之目標,詳加設計與審慎評估後,終得一確具實用性之本發明。 In view of this, the inventor of the present invention has been engaged in the manufacturing development and design experience of related products for many years. After detailed design and careful evaluation of the above objectives, the present invention has finally become practical.
本發明之目的,在提供一種雷射調光系統,係隨外在環境光線之強弱,自動調整成像之亮度,不論白天或晚上成像亮度皆適中,不會令使用者感到刺眼或不清楚之情況發生。 The object of the present invention is to provide a laser dimming system that automatically adjusts the brightness of an image with the intensity of the external ambient light, and the image brightness is moderate regardless of day or night, and does not cause glare or unclearness to the user. occur.
為達上述之目的,本發明之雷射調光系統包括:一影像處理器;一環境光感應器;一亮度模式決定電路,電性連接該環境光感應器;一雷射驅動電路,電性連接該影像處理器;一雷射光源,電性連接該雷射驅動電路並輸出一雷射光;一亮度控制模組,電性連接該亮度模式決定電路,其中該亮度控制模組包括一亮度控制電路、一液晶以及一偏光片;一掃描鏡驅動電路,電性連接該影像處理器;以及一微機電掃描鏡,受該掃描鏡驅動電路控制而掃描,並反射來自該偏光片之該雷射光。 For the above purposes, the laser dimming system of the present invention comprises: an image processor; an ambient light sensor; a brightness mode determining circuit electrically connected to the ambient light sensor; a laser driving circuit, electrical Connecting the image processor; a laser light source electrically connecting the laser driving circuit and outputting a laser light; a brightness control module electrically connected to the brightness mode determining circuit, wherein the brightness control module comprises a brightness control a circuit, a liquid crystal and a polarizer; a scanning mirror driving circuit electrically connected to the image processor; and a microelectromechanical scanning mirror controlled by the scanning mirror driving circuit to reflect the laser light from the polarizer .
170‧‧‧環境光感應器 170‧‧‧ Ambient light sensor
171‧‧‧背光感應器 171‧‧‧Backlight sensor
175‧‧‧溫度感應器 175‧‧‧temperature sensor
120‧‧‧背光 120‧‧‧ Backlight
190‧‧‧軟體驅動裝置 190‧‧‧Software drive
200‧‧‧電流測量裝置 200‧‧‧current measuring device
195‧‧‧電源 195‧‧‧Power supply
102‧‧‧發光二極體單元 102‧‧‧Lighting diode unit
104‧‧‧光敏元件 104‧‧‧Photosensitive elements
105‧‧‧控制電路 105‧‧‧Control circuit
VS‧‧‧電源 VS‧‧‧ power supply
VFB‧‧‧回授電壓 VFB‧‧‧ feedback voltage
S410~S430‧‧‧步驟 S410~S430‧‧‧Steps
700‧‧‧顯示器本體 700‧‧‧Display body
710‧‧‧環境光感應器 710‧‧‧ Ambient light sensor
720‧‧‧亮度模式決定電路 720‧‧‧Brightness mode decision circuit
730‧‧‧亮度控制模組 730‧‧‧Brightness control module
731‧‧‧液晶 731‧‧‧LCD
732‧‧‧偏光片 732‧‧‧ polarizer
733‧‧‧亮度控制電路 733‧‧‧Brightness control circuit
740‧‧‧微機電掃描鏡 740‧‧‧Microelectromechanical scanning mirror
750‧‧‧影像處理器 750‧‧‧ image processor
760‧‧‧掃描鏡驅動電路 760‧‧‧Scan mirror drive circuit
770‧‧‧雷射驅動電路 770‧‧‧Laser drive circuit
780‧‧‧雷射光源 780‧‧‧Laser light source
800‧‧‧擴散器 800‧‧‧Diffuser
900‧‧‧影像結合器 900‧‧‧Image combiner
S100‧‧‧感應訊號 S100‧‧‧ induction signal
S200‧‧‧亮度模式訊號 S200‧‧‧Bright mode signal
S210‧‧‧強亮度模式訊號 S210‧‧‧Strong brightness mode signal
S220‧‧‧弱亮度模式訊號 S220‧‧‧Weak brightness mode signal
S310‧‧‧第一驅動訊號 S310‧‧‧First drive signal
S320‧‧‧第二驅動訊號 S320‧‧‧second drive signal
S330‧‧‧第三驅動訊號 S330‧‧‧ third drive signal
L110‧‧‧雷射光 L110‧‧‧Laser light
L110’‧‧‧雷射光 L110’‧‧‧Laser light
L120‧‧‧投射強度 L120‧‧‧projection intensity
L120’‧‧‧投射強度 L120’‧‧‧projection intensity
L121‧‧‧強投射強度 L121‧‧‧strong projection intensity
L122‧‧‧弱投射強度 L122‧‧‧Weak projection intensity
第1圖為先前技術示意圖。 Figure 1 is a prior art schematic.
第2圖為另一先前技術示意圖。 Figure 2 is a schematic diagram of another prior art.
第3圖係為本發明之電路方塊圖。 Figure 3 is a block diagram of the circuit of the present invention.
第4圖為本發明實施例一之流程示意圖。 FIG. 4 is a schematic flow chart of Embodiment 1 of the present invention.
第5圖係為本發明實施例二之流程示意圖。 Figure 5 is a schematic flow chart of the second embodiment of the present invention.
第6圖係為本發明另一態樣之電路方塊圖。 Figure 6 is a block diagram of another embodiment of the present invention.
為便貴審查委員能對本發明之目的、形狀、構造裝置特徵及其功效,做更進一步之認識與瞭解,茲舉實施例配合圖式,詳細說明如下。 To further understand and understand the purpose, shape, structure and function of the present invention, the present invention will be described in detail below with reference to the drawings.
請參考第3圖所示,本發明提供一種雷射調光系統,具有一顯示器本體700,該顯示器本體700係包括:一環境光感應器710,可自動偵測外在環境之光亮度,並輸出一感應訊號S100至一亮度模式決定電路720,該亮度模式決定電路720依據該感應訊號S100輸出至少一亮度模式訊號S200至一亮度控制模組730,該亮度控制模組730包括一液晶731、一偏光片732以及一亮度控制電路733,該亮度控制模組730接受該等亮度模式訊號S200,其該亮度控制電路733會控制該液晶731之結構排列;該顯示器本體700包括有一影像處理器750,當該影像處理器750被啟動時,會同時分別輸出一第一驅動訊號S310予一雷射驅動電路770以及一第二驅動訊號S320予一掃描鏡驅動電路760,該雷射驅動電路770接收該第一驅動訊號S310後則輸出電流啟動一雷射光源780,令該雷射光源780輸出一影像之雷射光L110予該亮度控制模組730之液晶731,因該液晶731於接受該等亮度模式訊號S200時已透過該亮度控制電路733調整其結構之排列,當該雷射光L110輸入該液晶731後,依據該等亮度模式訊號S200會輸出不同強度之一投射強度L120至一偏光片732,經該偏光片732調整該投射強度L120後輸出一投射強度L120’;該掃描鏡驅動電路760會輸出一第三驅動訊號S330與 一微機電掃描鏡740,該微機電掃描鏡740可為MEMS,同時該微機電掃描鏡,740接收來自該亮度控制模組730輸出之該投射強度L120’,透過該微機電掃描鏡740將該投射強度L120’輸出至一擴散器800上,藉由該擴散器800降低投射影像之光斑,並將影像輸出至一影像結合器900上,進一步利用該影像結合器900再將影像顯示出來,而影像的最大亮度受到亮度模式訊號的控制,例如系統包含強亮度模式訊號及弱亮度模式訊號兩種時,在弱模式訊號的情況下,影像的最大亮度為系統所能提供的最大訊號的一半。 As shown in FIG. 3, the present invention provides a laser dimming system having a display body 700. The display body 700 includes an ambient light sensor 710 that automatically detects the brightness of the external environment. Outputting a sensing signal S100 to a brightness mode determining circuit 720, the brightness mode determining circuit 720 outputs at least one brightness mode signal S200 to a brightness control module 730 according to the sensing signal S100, the brightness control module 730 includes a liquid crystal 731, A brightness control module 730 receives the brightness mode signal S200, and the brightness control circuit 733 controls the structure of the liquid crystal 731. The display body 700 includes an image processor 750. When the image processor 750 is activated, a first driving signal S310 is simultaneously outputted to a laser driving circuit 770 and a second driving signal S320 to a scanning mirror driving circuit 760, and the laser driving circuit 770 receives After the first driving signal S310, the output current starts a laser light source 780, and the laser light source 780 outputs an image of the laser light L110 to the brightness. The liquid crystal 731 of the module 730 is configured to adjust the arrangement of the structure through the brightness control circuit 733 when the liquid crystal 731 receives the brightness mode signal S200. After the laser light 110 is input to the liquid crystal 731, according to the brightness mode. The signal S200 outputs a projection intensity L120 of a different intensity to a polarizer 732, and the projection intensity L120 is adjusted by the polarizer 732 to output a projection intensity L120'; the scanning mirror driving circuit 760 outputs a third driving signal S330 and a microelectromechanical scanning mirror 740, which may be a MEMS, and the microelectromechanical scanning mirror 740 receives the projection intensity L120' output from the brightness control module 730, through the microelectromechanical scanning mirror 740 The projection intensity L120' is outputted to a diffuser 800, and the diffuser 800 reduces the spot of the projected image, and outputs the image to an image combiner 900, and further uses the image combiner 900 to display the image. The maximum brightness of the image is controlled by the brightness mode signal. For example, when the system includes two types of strong brightness mode signals and weak brightness mode signals, in the case of weak mode signals, the maximum brightness of the image is half of the maximum signal that the system can provide.
實施例一 Embodiment 1
請參閱第4圖所示,在強光環境下,該環境光感應器710自動偵測其光源強度,輸出該感應訊號S100予該亮度模式決定電路720,該亮度模式決定電路720輸出一強亮度模式訊號S210予該亮度控制模組730,透過該亮度控制電路733控制該液晶731之結構,並將接收到之該雷射光L110自該亮度控制模組730輸出一強投射強度L121予該微機電掃描鏡740,接著經過該擴散器800與該影像結合器900調整影像,並將資訊清楚的投影出來,令使用者在外在光線充足之情況下仍可清楚看到投影出來之資訊。 Referring to FIG. 4, in a strong light environment, the ambient light sensor 710 automatically detects the intensity of the light source, and outputs the sensing signal S100 to the brightness mode determining circuit 720. The brightness mode determining circuit 720 outputs a strong brightness. The mode signal S210 is applied to the brightness control module 730, and the brightness control circuit 733 controls the structure of the liquid crystal 731, and the received laser light L110 receives a strong projection intensity L121 from the brightness control module 730 to the MEMS. The scanning mirror 740 is then used to adjust the image through the diffuser 800 and the image combiner 900, and the information is clearly projected, so that the user can clearly see the projected information when the external light is sufficient.
實施例二 Embodiment 2
請參閱第5圖所示,當外界光線不足時,該環境光感應器710自動偵測其光源,並輸出該感應訊號S100至該亮度模式決定電路720,該亮度模式決定電路720輸出一弱亮度模式訊號S220予該亮度控制模組730,透過該亮度控制電路733控制該液晶731之結構,並將接收到之該雷射光L110自該亮度控制模組730輸出一弱投射強度L122予該微機電掃描鏡740,接著經過該擴散器800 與該影像結合器900調整影像,並將資訊清楚的投影出來,令使用者在外在光線不足之情況下不至於感到影像太刺眼。 Referring to FIG. 5, when ambient light is insufficient, the ambient light sensor 710 automatically detects the light source, and outputs the sensing signal S100 to the brightness mode determining circuit 720. The brightness mode determining circuit 720 outputs a weak brightness. The mode signal S220 is applied to the brightness control module 730, and the structure of the liquid crystal 731 is controlled by the brightness control circuit 733, and the received laser light L110 is outputted from the brightness control module 730 by a weak projection intensity L122 to the MEMS. Scanning mirror 740, then passing through diffuser 800 The image combiner 900 adjusts the image and clearly projects the information, so that the user does not feel the image is too glaring when the external light is insufficient.
請參閱第6圖所示,本發明之該顯示器本體700可為另一態樣,該微機電掃描鏡740可設置在該亮度控制模組730前,該雷射光L110投射至該微機電掃描鏡740,該微機電掃描鏡740同時接收該第三驅動訊號S330,輸出一雷射光L110’至該亮度控制模組730的該液晶731以及該偏光片732,而亮度模式決定電路720所輸出之該亮度模式訊號S200,控制該亮度控制電路733來決定該液晶731之結構排列,在該雷射光L110’投射至該液晶731時,透過該液晶731結構之不同排列,該亮度控制模組730所投射出之該投射強度L120’將會不同,接著該亮度控制模組730輸出該投射強度L120’予該擴散器800,進一步透過該影像結合器900將影像顯現出來。 Referring to FIG. 6 , the display body 700 of the present invention may be another aspect. The MEMS scanning mirror 740 may be disposed in front of the brightness control module 730 , and the laser light L110 is projected to the MEMS scanning mirror. 740. The MEMS scanning mirror 740 simultaneously receives the third driving signal S330, and outputs a laser light L110' to the liquid crystal 731 of the brightness control module 730 and the polarizer 732, and the brightness mode determining circuit 720 outputs the same. The brightness mode signal S200 controls the brightness control circuit 733 to determine the structure of the liquid crystal 731. When the laser light 710 is projected onto the liquid crystal 731, the brightness control module 730 projects through the different arrangement of the liquid crystal 731 structure. The projection intensity L120' will be different. Then, the brightness control module 730 outputs the projection intensity L120' to the diffuser 800, and further visualizes the image through the image combiner 900.
進一步本發明可運用在汽車之抬頭顯示器,感應車子外在環境光線之強弱,自動調整抬頭顯示器成像之亮度,不論白天或晚上其顯示器之成像亮度皆適中,不會令駕駛人感到刺眼或不清楚之情況發生。 Further, the present invention can be applied to a head-up display of a car to sense the intensity of the ambient light outside the car, and automatically adjust the brightness of the image of the head-up display. The brightness of the display of the display is moderate during the day or night, and the driver is not glaring or unclear. The situation happened.
惟以上所述者,僅為本發明之較佳實施例而已,當不能以此限定本發明實施之範圍;故,凡依本發明申請專利範圍及發明說明書內容所作之簡單的等效變化與修飾,皆應仍屬本創作專利涵蓋之範圍內。 However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; therefore, the simple equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the invention are modified. All should remain within the scope of this creation patent.
700‧‧‧顯示器本體 700‧‧‧Display body
710‧‧‧環境光感應器 710‧‧‧ Ambient light sensor
720‧‧‧亮度模式決定電路 720‧‧‧Brightness mode decision circuit
730‧‧‧亮度控制模組 730‧‧‧Brightness control module
731‧‧‧液晶 731‧‧‧LCD
732‧‧‧偏光片 732‧‧‧ polarizer
733‧‧‧亮度控制電路 733‧‧‧Brightness control circuit
740‧‧‧微機電掃描鏡 740‧‧‧Microelectromechanical scanning mirror
750‧‧‧影像處理器 750‧‧‧ image processor
760‧‧‧掃描鏡驅動電路 760‧‧‧Scan mirror drive circuit
770‧‧‧雷射驅動電路 770‧‧‧Laser drive circuit
780‧‧‧雷射光源 780‧‧‧Laser light source
800‧‧‧擴散器 800‧‧‧Diffuser
900‧‧‧影像結合器 900‧‧‧Image combiner
S100‧‧‧感應訊號 S100‧‧‧ induction signal
S200‧‧‧亮度模式訊號 S200‧‧‧Bright mode signal
S310‧‧‧第一驅動訊號 S310‧‧‧First drive signal
S320‧‧‧第二驅動訊號 S320‧‧‧second drive signal
S330‧‧‧第三驅動訊號 S330‧‧‧ third drive signal
L110‧‧‧雷射光 L110‧‧‧Laser light
L120‧‧‧投射強度 L120‧‧‧projection intensity
L120’‧‧‧投射強度 L120’‧‧‧projection intensity
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TW201737004A (en) | 2017-10-16 |
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