WO2022083461A1 - 用于全彩led显示屏的四基色发光器件 - Google Patents

用于全彩led显示屏的四基色发光器件 Download PDF

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Publication number
WO2022083461A1
WO2022083461A1 PCT/CN2021/122937 CN2021122937W WO2022083461A1 WO 2022083461 A1 WO2022083461 A1 WO 2022083461A1 CN 2021122937 W CN2021122937 W CN 2021122937W WO 2022083461 A1 WO2022083461 A1 WO 2022083461A1
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led
light
wavelength
light emitted
color
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PCT/CN2021/122937
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English (en)
French (fr)
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夏林嘉
凌琳
夏淑丹
唐美君
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夏林嘉
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Publication of WO2022083461A1 publication Critical patent/WO2022083461A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes

Definitions

  • the invention belongs to the technical field of full-color LED display screens, and in particular relates to a four-primary-color light-emitting device for full-color LED display screens.
  • a three-primary color light-emitting device for a full-color LED display includes a bracket on which a red LED, a green LED and a blue LED are arranged, that is, a GRB combination, wherein the red light emitted by the red LED has a wavelength of 615 ⁇ 700nm, the wavelength of green light emitted by green LED is 515 ⁇ 560nm, the wavelength of blue light emitted by blue LED is 415 ⁇ 470nm, the red light emitted by red LED, the green light emitted by green LED and the blue light emitted by blue LED can be Composite to form full color.
  • the blue light emitted by the blue LED in the GRB combination is between 455-470nm, the blue light is beneficial and harmless to the human eye, but the blue light emitted by the blue LED with a wavelength between 415-455nm is harmful to the human eye, especially 430nm blue light is the most harmful to the eyes, and users who are exposed to this light environment for a long time can easily lead to myopia.
  • the purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, and to provide a four-primary color light-emitting device for a full-color LED display screen.
  • a four-primary color light-emitting device for a full-color LED display screen includes a bracket on which at least one red LED, at least one green LED, at least one purple LED and at least one A cyan LED, the red light emitted by the red LED has a wavelength of 615-700 nm, the green light emitted by the green LED has a wavelength of 515-560 nm, and the purple light emitted by the violet LED has a wavelength of 385-415 nm, so The cyan light emitted by the cyan LED has a wavelength of 470-500 nm.
  • the number of the red LED, the green LED, the violet LED and the cyan LED is one.
  • the present invention replaces the blue LED in the light-emitting device of the prior art full-color LED display with violet light with a wavelength of 385-415 nm and a cyan LED with a wavelength of 470-500 nm.
  • the violet light emitted by green and violet LEDs and the cyan light emitted by cyan LEDs can be compounded to form a full color.
  • the compounded blue light is harmless to the human eye, and there is no blue light with a wavelength between 415-455nm that is harmful to the human eye.
  • the violet light with a wavelength of 385-415 nm can also prevent myopia of human eyes. Therefore, the four-primary color light-emitting device of the present invention can be used to make a full-color LED display that prevents myopia of human eyes.
  • the violet light with a wavelength of 385-415nm is abundant in sunlight, but it is almost impossible to measure indoors. This is because violet light is very close to ultraviolet rays. Almost all window glass can block all light below 415nm, including violet light. In addition, indoor light sources Violet light below 415nm is hardly emitted. Therefore, the lack of violet light caused by excessive UV protection is one of the reasons for the high incidence of myopia.
  • a four-primary color light-emitting device for a full-color LED display screen provided by an embodiment of the present invention includes a bracket, and the bracket is provided with at least one red LED, at least one green LED, at least one purple LED, and at least one A cyan LED, the wavelength of red light emitted by red LED is 615-700nm, the wavelength of green light emitted by green LED is 515-560nm, the wavelength of purple light emitted by violet LED is 385-415nm, and the wavelength of cyan light emitted by cyan LED The wavelength is 470-500nm, the red light emitted by the red LED, the green light emitted by the green LED, the violet light emitted by the violet LED and the cyan light emitted by the cyan LED can be combined to form a full color.
  • the number of the red LED, the green LED, the violet LED and the cyan LED is one.
  • the present invention replaces the blue LED in the light-emitting device of the prior art full-color LED display with violet light with a wavelength of 385-415 nm and a cyan LED with a wavelength of 470-500 nm.
  • the violet light emitted by green and violet LEDs and the cyan light emitted by cyan LEDs can be compounded to form a full color.
  • the compounded blue light is harmless to the human eye, and there is no blue light with a wavelength between 415-455nm that is harmful to the human eye.
  • the violet light with a wavelength of 385-415 nm can also prevent myopia of human eyes. Therefore, the four-primary color light-emitting device of the present invention can be used to make a full-color LED display that prevents myopia of human eyes.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种用于全彩LED显示屏的四基色发光器件，包括一支架，支架上设有至少一红光LED、至少一绿光LED、至少一紫光LED和至少一青光LED，红光LED发出的红光波长为615～700nm，绿光LED发出的绿光的波长为515～560nm，紫光LED发出的紫光的波长为385～415nm，青光LED发出的青光的波长为470～500nm，红光LED发出的红光、绿光LED发出的绿光、紫光LED发出的紫光和青光LED发出的青光可以复合形成全彩色，其中复合形成的蓝光对人眼无害，且不存在对人眼有害的波长在415-455nm之间的蓝光，而且波长为385～415nm的紫光还可以防止人眼近视，因此，利用本发明的四基色发光器件可以做出防止人眼近视的全彩LED显示屏。

Description

用于全彩LED显示屏的四基色发光器件 技术领域
本发明属于全彩LED显示屏技术领域，尤其涉及一种用于全彩LED显示屏的四基色发光器件。
背景技术
目前，用于全彩LED显示屏的三基色发光器件包括一支架，支架上设有红光LED、绿光LED和蓝光LED，即GRB组合，其中，红光LED发出的红光波长为615～700nm，绿光LED发出的绿光的波长为515～560nm，蓝光LED发出的蓝光的波长为415～470nm，红光LED发出的红光、绿光LED发出的绿光和蓝光LED发出的蓝光可以复合形成全彩色。
虽然GRB组合中的蓝光LED发出的波长在455-470nm之间蓝光是有益蓝光，对人眼无害，但是蓝光LED发出的波长在415-455nm之间的蓝光是对人眼有害的，尤其是430nm的蓝光对眼睛危害最大，使用者长期处于这种光线环境下，容易导致人眼近视。
发明内容
本发明的目的在于克服上述现有技术的不足，提供一种用于全彩LED显示屏的四基色发光器件。
本发明是这样实现的，一种用于全彩LED显示屏的四基色发光器件，包括一支架，所述支架上设有至少一红光LED、至少一绿光LED、至少一紫光LED和至少一青光LED，所述红光LED发出的红光波长为615～700nm，所述绿光LED发出的绿光的波长为515～560nm，所述紫光LED发出的紫光的波长为385～415nm，所述青光LED发出的青光的波长为470～500nm。
优选地，所述红光LED、绿光LED、紫光LED和青光LED的数量均为一个。
本发明用波长为385～415nm的紫光和波长为470～500nm的青光LED替换现有技术全彩LED显示屏的发光器件中的蓝光LED，红光LED发出的红光、 绿光LED发出的绿光、紫光LED发出的紫光和青光LED发出的青光可以复合形成全彩色，其中复合形成的蓝光对人眼无害，且不存在对人眼有害的波长在415-455nm之间的蓝光，而且波长为385～415nm的紫光还可以防止人眼近视，因此，利用本发明的四基色发光器件可以做出防止人眼近视的全彩LED显示屏。
具体实施方式
下面对本发明实施例中的技术方案进行清楚、完整地描述。
申请人利用小鸡进行动物实验发现，患有近视的小鸡如果生活在紫光环境中，其体内抑制近视的基因EGR1的表达会增强，小鸡眼轴长度的增加幅度变小，即近视症状得到控制。
此外，在临床研究中，申请人比较了佩戴不同眼镜者的情况，发现佩戴能透过紫光的隐形眼镜的人与佩戴普通眼镜的人相比，佩戴能透过紫光的隐形眼镜的人的近视症状得到抑制。
申请人发现，由于日常使用的照明设备缺乏紫光，紫光通常也不能透过普通眼镜和玻璃等物品，因此现代社会人们生活在缺少紫光的环境中，这与全球近视人口增多有关。
波长为385～415nm的紫光在太阳光线中含量丰富，但在室内几乎测量不到，这是因为紫光非常毗邻紫外线，几乎所有的窗户玻璃都可以阻断415nm以下所有光线包括紫光，另外，室内光源几乎不会发出415nm以下的紫光，因此，过度的紫外线防护造成紫光照缺失是近视高发的原因之一。
鉴于此，本发明实施例提供的一种用于全彩LED显示屏的四基色发光器件，包括一支架，支架上设有至少一红光LED、至少一绿光LED、至少一紫光LED和至少一青光LED，红光LED发出的红光波长为615～700nm，绿光LED发出的绿光的波长为515～560nm，紫光LED发出的紫光的波长为385～415nm，青光LED发出的青光的波长为470～500nm，红光LED发出的红光、绿光LED发出的绿光、紫光LED发出的紫光和青光LED发出的青光可以复合形成全彩色。
优选地，所述红光LED、绿光LED、紫光LED和青光LED的数量均为一个。
本发明用波长为385～415nm的紫光和波长为470～500nm的青光LED替换现有技术全彩LED显示屏的发光器件中的蓝光LED，红光LED发出的红光、 绿光LED发出的绿光、紫光LED发出的紫光和青光LED发出的青光可以复合形成全彩色，其中复合形成的蓝光对人眼无害，且不存在对人眼有害的波长在415-455nm之间的蓝光，而且波长为385～415nm的紫光还可以防止人眼近视，因此，利用本发明的四基色发光器件可以做出防止人眼近视的全彩LED显示屏。
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围。

Claims (2)

  1. 一种用于全彩LED显示屏的四基色发光器件，其特征在于，包括一支架，所述支架上设有至少一红光LED、至少一绿光LED、至少一紫光LED和至少一青光LED，所述红光LED发出的红光波长为615～700nm，所述绿光LED发出的绿光的波长为515～560nm，所述紫光LED发出的紫光的波长为385～415nm，所述青光LED发出的青光的波长为470～500nm。
  2. 根据权利要求1所述的用于全彩LED显示屏的四基色发光器件，其特征在于，所述红光LED、绿光LED、紫光LED和青光LED的数量均为一个。
PCT/CN2021/122937 2020-10-19 2021-10-10 用于全彩led显示屏的四基色发光器件 WO2022083461A1 (zh)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2524331Y (zh) * 2001-05-10 2002-12-04 凌巨科技股份有限公司 四色组合的彩色显示器
US20020191130A1 (en) * 2001-06-19 2002-12-19 Wei-Chen Liang Color display utilizing combinations of four colors
CN103346152A (zh) * 2013-06-24 2013-10-09 江西量一光电科技有限公司 可任意调节380-780nm波长的COB封装技术
WO2017131715A1 (en) * 2016-01-28 2017-08-03 Ecosense Lighting Inc. Methods for generating melatonin-response-tuned white light with high color rendering
CN108279525A (zh) * 2017-01-06 2018-07-13 群创光电股份有限公司 显示装置与光源装置
CN112234051A (zh) * 2020-10-19 2021-01-15 夏林嘉 用于全彩led显示屏的四基色像素单元及全彩led显示屏
CN214043669U (zh) * 2020-12-23 2021-08-24 华显光电技术（惠州）有限公司 一种像素结构以及显示面板

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2524331Y (zh) * 2001-05-10 2002-12-04 凌巨科技股份有限公司 四色组合的彩色显示器
US20020191130A1 (en) * 2001-06-19 2002-12-19 Wei-Chen Liang Color display utilizing combinations of four colors
CN103346152A (zh) * 2013-06-24 2013-10-09 江西量一光电科技有限公司 可任意调节380-780nm波长的COB封装技术
WO2017131715A1 (en) * 2016-01-28 2017-08-03 Ecosense Lighting Inc. Methods for generating melatonin-response-tuned white light with high color rendering
CN108279525A (zh) * 2017-01-06 2018-07-13 群创光电股份有限公司 显示装置与光源装置
CN112234051A (zh) * 2020-10-19 2021-01-15 夏林嘉 用于全彩led显示屏的四基色像素单元及全彩led显示屏
CN214043669U (zh) * 2020-12-23 2021-08-24 华显光电技术（惠州）有限公司 一种像素结构以及显示面板

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