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WO2018120020A1 - Flash à micro-réseau de diodes électroluminescentes - Google Patents

Flash à micro-réseau de diodes électroluminescentes Download PDF

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Publication number
WO2018120020A1
WO2018120020A1 PCT/CN2016/113500 CN2016113500W WO2018120020A1 WO 2018120020 A1 WO2018120020 A1 WO 2018120020A1 CN 2016113500 W CN2016113500 W CN 2016113500W WO 2018120020 A1 WO2018120020 A1 WO 2018120020A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
emitting diode
micro
array
light emitting
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.)
Ceased
Application number
PCT/CN2016/113500
Other languages
English (en)
Chinese (zh)
Inventor
陈振贤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hong Kong Beida Jade Bird Display Ltd
Original Assignee
Hong Kong Beida Jade Bird Display Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hong Kong Beida Jade Bird Display Ltd filed Critical Hong Kong Beida Jade Bird Display Ltd
Priority to PCT/CN2016/113500 priority Critical patent/WO2018120020A1/fr
Publication of WO2018120020A1 publication Critical patent/WO2018120020A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units

Definitions

  • the present disclosure relates to a flashlight, and more particularly to a light emitting diode microarray flash applied to a smart phone and using a micro light emitting diode array module.
  • the LED fill light of the existing smart phone is a single light source, it cannot adjust the warm color or the cool color light according to the shooting environment requirement, and the subsequent modification of the repair software is still required.
  • some existing smart phones have developed a two-color light source for the fill light to complement the color temperature modulation function, in the case of a special light source, such as: apple light for self-timer or dark green light for fear effect Even in order to further highlight the theme and use the strong light source in different positions, or the double halo effect required for special situations, it is not easy to achieve the situation.
  • the existing projector module utilizes components such as a backlight board and a filter to generate a desired image. If the same technology is used to make the mobile phone directly projectable on the mobile phone, the problem of heat dissipation is caused by the small size of the mobile phone. It will be highlighted, and the power required by the general projection module is too large for the mobile phone, and it is even more difficult to implement the projection function on the mobile phone.
  • the present disclosure will provide an LED micro-array flash for a mobile phone to meet the light color and light type adjustment flash, and can transmit the self-luminous characteristics of the LED micro-array component itself and the external optics.
  • the module directly produces a projected image.
  • the LED microarray flash of the present disclosure is applied to a mobile phone to illuminate a multi-point array mixed light source, which comprises a micro light emitting diode array module and a light mixing optical module.
  • the micro light emitting diode array module is disposed in a casing of the mobile phone to generate a patterned image light source.
  • the light mixing optical module is detachably disposed on the outer surface of the casing of the mobile phone for receiving the image light source and illuminating the multi-point array light mixing source.
  • the thickness of the micro-light-emitting diode array module is smaller than the average thickness of the mobile phone, and the multi-point array mixed light source can be used as the photo source and the illumination source of the mobile phone.
  • the LED micro-array flash further includes an optical module.
  • the optical module is detachably disposed on the outer surface of the casing of the mobile phone for receiving the micro-light emitting diode array module.
  • the image source is projected and projected into an image.
  • the micro-light-emitting diode array module comprises an LED array chip of a plurality of micro-light-emitting diode elements, and the micro-light-emitting diode array module generates an image light source through the micro-light-emitting diode elements.
  • the micro light emitting diode array module further includes microlenses corresponding to each of the micro light emitting diode elements, and the micro light emitting diode elements generate an image light source through the microlens.
  • each of the micro light emitting diode elements belongs to one of a red light emitting diode, a green light emitting diode, and a blue light emitting diode, respectively.
  • At least one red light emitting diode, at least one green light emitting diode, and at least one blue light emitting diode of the micro light emitting diode elements form a pixel group, and the light emitted by the miniature light emitting diode elements in the pixel group Mixing produces a pixel in the patterned image source.
  • micro-light-emitting diode array module further includes a substrate, and the micro-light-emitting diode elements are directly formed on the substrate by an epitaxial structure.
  • the substrate is a complementary metal oxide semiconductor integrated circuit (CMOS IC).
  • CMOS IC complementary metal oxide semiconductor integrated circuit
  • the micro-light emitting diode array module has a thickness of no more than 1 mm.
  • the optical module adjusts a focal length position, a size, and a display shape of the image for projection.
  • the LED microarray flash of the present disclosure generates a flash light source with adjustable light color and light type through a micro light emitting diode array module installed in a mobile phone case and an external light mixing optical module.
  • the light mixing optical module is further replaced by a detachable optical module to produce a projected image.
  • the LED micro-array flash of the present disclosure directly emits a desired image light source by using an LED array chip, and is matched with a light mixing optical module to generate a flash light source with adjustable light color and light type, thereby simultaneously reducing the embedded light.
  • the thickness and volume required for placement in the phone can be projected into a viewable image by replacing the light mixing optical module with an optical module, thereby upgrading to a mobile phone having a projection function.
  • FIG. 1 is a schematic diagram of a light emitting diode micro-array flash according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic view showing a conventional mobile phone with a two-color flash light source.
  • FIG. 3 is a schematic diagram showing a specific embodiment of a micro light emitting diode array module of the present disclosure.
  • FIG. 4 is a schematic diagram of a conventional mobile phone with a projection function.
  • FIG. 5 is a schematic diagram of an optical module using an LED micro-array for a flashlight according to an embodiment of the present disclosure.
  • LED micro array flash 221 light exit
  • Micro LED array module 3 Existing mobile phone with projection function
  • Microarray lens 33 Projecting the optical port
  • Cable 4 Existing mobile phones with two-color flash light source
  • FIG. 1 is a schematic diagram of an LED micro-array flash 1 according to an embodiment of the present disclosure.
  • the LED micro-array flash 1 of the present disclosure can be applied to a mobile phone to illuminate a multi-point array light mixing light source, which includes a micro light emitting diode array module 12 and a light mixing optical module 16 .
  • the micro-light emitting diode array module 12 is disposed in the housing 22 of the mobile phone to generate a patterned image light source.
  • the light mixing optical module 16 is detachably disposed on the outer surface of the casing 22 of the mobile phone for receiving the image light source and illuminating the multi-point array light mixing source.
  • the thickness of the micro-light-emitting diode array module 12 is smaller than the average thickness of the mobile phone, and the multi-point array mixed light source can be used as a photo source and an illumination source of the mobile phone.
  • the multi-point array mixed light source can be used as a flashlight of a mobile phone by a control module of the mobile phone, and further, can be used as an illumination source of the mobile phone.
  • the micro-light-emitting diode array module 12 includes an array of light-emitting diode arrays of a plurality of miniature light-emitting diode elements 122 through which a patterned image light source is generated.
  • the micro light emitting diode array module 12 can generate an image light source without using any filtering or shading elements, so that the thickness of the micro light emitting diode array module 12 can be reduced.
  • Each of the micro light emitting diode elements 122 belongs to one of a red light emitting diode, a green light emitting diode, and a blue light emitting diode. In practical applications, the color of the light emitted by each of the miniature light emitting diode elements 122 may also belong to other basic primary colors that can be mixed with the desired visible light.
  • a color light micro-LED component 122 can also be used with a corresponding phosphor to obtain a light source of another color, such as: using a blue light-emitting diode with a yellow phosphor to obtain a white light source.
  • At least one red light emitting diode of the micro light emitting diode elements 122, at least one green light emitting The photodiode and the at least one blue light emitting diode form a group of pixels, and the light emitted by the miniature light emitting diode elements 122 in the group of pixels can be mixed to produce a pixel in the patterned image light source.
  • the micro-light-emitting diode element 122 of the micro-light-emitting diode array module 12 can be divided into a plurality of pixel groups according to the grouping principle described above, respectively corresponding to each pixel of the image light source, and therefore, each pixel group can directly generate an image.
  • Each pixel in the light source does not need to pass through a backlight, filter or other components, thereby reducing the amount of component usage, thereby reducing the volume of use of the micro-light-emitting diode array module 12 in the handset.
  • the micro-light-emitting diode array module 12 directly emits the required three-color light through the micro-light-emitting diode elements 122, thereby making the color more pure and shortening the reaction time of the pixel.
  • FIG. 2 is a schematic diagram of a conventional mobile phone 4 having a two-color flash light source.
  • the existing mobile phone 4 with two-color flash light source is matched with two flash lamps 41 having different color temperatures to achieve a color temperature modulation function.
  • this method can produce the modulation of the warm and cold light color, the color variability is limited because it is adjusted by only two colors of the light source.
  • the LED micro-array flash 1 of the present disclosure can be modulated by the above-mentioned three-color light modulation mode, such as: the white light color temperature can be freely adjusted to obtain warm white light or cold.
  • the generated light source can be presented with a strong light source for emphasizing a specific position of the main body, a double-halal light source like a car lamp or A gradual composite light source such as white and red, which cannot be easily achieved in a conventional smart phone having only two-color point light sources.
  • FIG. 3 is a schematic diagram of a specific embodiment of the micro LED array module 12 of the present disclosure.
  • the micro-light-emitting diode array module 12 further includes a substrate 124.
  • the micro-light-emitting diode elements 122 are directly formed on the substrate 124 by an epitaxial structure to form an LED array chip.
  • the substrate 124 is a complementary metal oxide semiconductor integrated circuit (CMOS IC), and the wiring 128 of the substrate 124 is used to be embedded in the corresponding control socket to reduce assembly complexity.
  • CMOS IC complementary metal oxide semiconductor integrated circuit
  • a micro-array lens 126 can be matched to adjust the optical properties of the micro-light-emitting diode elements 122 by matching the positions of the micro-light-emitting diode elements 122, so that the light emitted by each of the micro-light-emitting diode elements 122 can be transmitted.
  • the microarray lens 126 increases its collimation to produce a sharper image source.
  • the microarray lens 126 can be directly formed on the corresponding micro light emitting diode element 122 by using a simple process, thereby reducing the process steps and the thickness of the microarray lens 126 while increasing the relative microarray lens of each micro light emitting diode element 122. Matching accuracy of 126.
  • the image light source with collimation is converted into a multi-point array light mixing light source with a soft light effect through the light mixing optical module 16.
  • the volume of the micro-light-emitting diode array module 12 can be made smaller, and since the epitaxial structure of the micro-light-emitting diode elements 122 is directly formed by an epitaxial process, the process required for the process can be reduced.
  • the arrangement accuracy of the micro light-emitting diode elements 122 can be further improved, and the selection conditions of the pitch and arrangement of the micro light-emitting diode elements 122 are also more favorable.
  • the thermal resistance of the entire micro-light-emitting diode array module 12 can be effectively reduced.
  • the value is to increase the heat dissipation and heat dissipation capability of the miniature light emitting diode element 122.
  • the life of the micro light emitting diode element 122 caused by the adhesive spot welding process is not reduced or the failure occurs.
  • the thickness of the micro-light-emitting diode array module 12 used may be no more than the average thickness of the casing 22 of the mobile phone (for example, no more than 1 mm). Therefore, the housing 22 of the mobile phone does not need to be modified in order to accommodate the micro light emitting diode array module 12 to cause partial housing protrusion, and the volume waste in the mobile phone case 22 can be avoided.
  • FIG. 5 is a schematic diagram of an LED module 1 using an optical module 14 according to an embodiment of the present disclosure.
  • the light-emitting diode micro-array flash 1 further includes an optical module 14 .
  • the optical module 14 is detachably disposed on the outer surface of the casing 22 of the mobile phone.
  • the image light source emitted by the micro light emitting diode array module 12 is received and projected into an image.
  • the optical module 14 can be hung on the mobile phone case 22 by using a mounting method.
  • the outer surface of the casing 22 of the mobile phone has a corresponding recess, so that the optical module 14 and the light mixing optical module 16 can be fixed on the mobile phone casing 22 by sliding into the groove to reduce the difficulty of replacement. And improving the accuracy of the position of the optical module 14 and the light mixing optical module 16 relative to the micro light emitting diode array module 12.
  • the housing 22 of the mobile phone has a light exit opening 221, and the micro light emitting diode array module 12 is disposed at a position corresponding to the light exit opening 221 in the mobile phone, so that the generated image light source can pass through the light exit opening 221 to the optical module 14 or the light mixing optical module 16. .
  • FIG. 4 illustrates a schematic diagram of a conventional mobile phone 3 with a projection function. Since the existing projection module cannot be made too thin, the projection light exit 33 of the existing projection function mobile phone 3 cannot be located on the same side of the camera 32, which will require an additional flash 31 to complement the photographing.
  • Taiwan Patent No. I327018 it can be known that if the projection optical port 33 is to be used on the same side as the camera 32, the thickness of the mobile phone should be sufficient to accommodate various optical lenses, illumination sources and filters. It is also impossible to make the phone thin.
  • the LED micro-array flash 1 of the present disclosure has a thickness smaller than the average thickness of the mobile phone, and the optical module 14 and the light mixing optical module 16 can be disassembled when not in use.
  • the mobile phone can maintain the appearance of the original design in peacetime, so that the mobile phone does not feel abrupt in visual perception and its structural shape.
  • the optical module 14 projects the image light source into an image
  • the focal length position, size, and display shape of the image can be adjusted for projection.
  • the optical module 14 can be divided into a plurality of different types of optical modules 14 according to the focusing distance, and matched with the micro LED array module 12 in an optional manner.
  • the optical module 14 can be divided into a distance of about 15 cm.
  • the short-focus module and the long-focus module with a distance of about 2 meters are used to match different environments.
  • an autofocus component can also be built in the optical module 14 to optimize the focal length of the projected image, so that only one optical module 14 can achieve the projection function in different environments.
  • the optical module 14 can further include the functions of image brightness adjustment and color shift adjustment, thereby being different in A clearer projected image is projected on the background screen.
  • the LED microarray flash of the present disclosure generates a flash light source with adjustable light color and light type through a micro light emitting diode array module installed in a mobile phone case and an external light mixing optical module.
  • the light mixing optical module is further replaced by a detachable optical module to produce a projected image.
  • the LED micro-array flash of the present disclosure directly emits a desired image light source by using an LED array chip, and is matched with a light mixing optical module to generate a flash light source with adjustable light color and light type, thereby simultaneously reducing the embedded light.
  • the thickness and volume required for placement in the phone can be projected into a viewable image by replacing the light mixing optical module with an optical module, thereby upgrading to a mobile phone having a projection function.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)
  • Stroboscope Apparatuses (AREA)

Abstract

L'invention concerne un flash à micro-réseau de diodes électroluminescentes (1), appliqué à un téléphone mobile pour générer une source de lumière d'éclairage réglable ou pour projeter une image, qui comprend un module de micro-réseau de diodes électroluminescentes (12), un module optique de lumière mixte (16) et un module optique (14). Le module de micro-réseau de diodes électroluminescentes (12) est disposé dans un boîtier (22) du téléphone mobile pour générer une source de lumière d'image à motifs. Le module optique de lumière mixte (16) et le module optique (14) sont disposés de manière amovible sur la surface extérieure du boîtier (22) du téléphone mobile pour recevoir la source de lumière d'image émise par le module de micro-réseau de diodes électroluminescentes (12) et pour éclairer respectivement la source d'éclairage ou pour projeter l'image. Le dispositif utilise une puce de réseau de diodes électroluminescentes en combinaison avec un module de lumière mixte (16) externe pour générer des flashs (31, 41) qui peuvent être réglés sous forme de motifs de lumière et de couleurs, et pour projeter la source de lumière dans une image en remplaçant le module de mélange de lumière mixte (16) par le module optique (14) de sorte que le téléphone mobile dispose d'une fonction de projection.
PCT/CN2016/113500 2016-12-30 2016-12-30 Flash à micro-réseau de diodes électroluminescentes Ceased WO2018120020A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/113500 WO2018120020A1 (fr) 2016-12-30 2016-12-30 Flash à micro-réseau de diodes électroluminescentes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/113500 WO2018120020A1 (fr) 2016-12-30 2016-12-30 Flash à micro-réseau de diodes électroluminescentes

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Publication Number Publication Date
WO2018120020A1 true WO2018120020A1 (fr) 2018-07-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115811562A (zh) * 2021-09-15 2023-03-17 Oppo广东移动通信有限公司 保护壳和设备组件

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KR100993903B1 (ko) * 2008-07-31 2010-11-11 알티전자 주식회사 사이드 뷰 발광 다이오드 패키지
CN103181154A (zh) * 2010-10-29 2013-06-26 加利福尼亚大学董事会 用于成像的手机显微镜装置和方法
CN204613561U (zh) * 2015-05-15 2015-09-02 精元电脑股份有限公司 能调色坐标的发光二极管闪光装置
CN105404084A (zh) * 2015-11-20 2016-03-16 惠州Tcl移动通信有限公司 基于移动终端闪光灯的投影系统及其投影装置
CN205283677U (zh) * 2015-10-27 2016-06-01 东莞市美光达光学科技有限公司 一种带有近距离光测距功能的闪光灯照明模组及摄像装置
CN105991844A (zh) * 2016-07-19 2016-10-05 广东欧珀移动通信有限公司 摄像头及终端设备
CN205792902U (zh) * 2016-05-25 2016-12-07 中兴通讯股份有限公司 摄像装置及具有其的移动终端设备

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100993903B1 (ko) * 2008-07-31 2010-11-11 알티전자 주식회사 사이드 뷰 발광 다이오드 패키지
CN103181154A (zh) * 2010-10-29 2013-06-26 加利福尼亚大学董事会 用于成像的手机显微镜装置和方法
CN204613561U (zh) * 2015-05-15 2015-09-02 精元电脑股份有限公司 能调色坐标的发光二极管闪光装置
CN205283677U (zh) * 2015-10-27 2016-06-01 东莞市美光达光学科技有限公司 一种带有近距离光测距功能的闪光灯照明模组及摄像装置
CN105404084A (zh) * 2015-11-20 2016-03-16 惠州Tcl移动通信有限公司 基于移动终端闪光灯的投影系统及其投影装置
CN205792902U (zh) * 2016-05-25 2016-12-07 中兴通讯股份有限公司 摄像装置及具有其的移动终端设备
CN105991844A (zh) * 2016-07-19 2016-10-05 广东欧珀移动通信有限公司 摄像头及终端设备

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115811562A (zh) * 2021-09-15 2023-03-17 Oppo广东移动通信有限公司 保护壳和设备组件

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