WO2022083460A1 - 用于全彩led显示屏的三基色像素单元及全彩led显示屏 - Google Patents

用于全彩led显示屏的三基色像素单元及全彩led显示屏 Download PDF

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WO2022083460A1
WO2022083460A1 PCT/CN2021/122936 CN2021122936W WO2022083460A1 WO 2022083460 A1 WO2022083460 A1 WO 2022083460A1 CN 2021122936 W CN2021122936 W CN 2021122936W WO 2022083460 A1 WO2022083460 A1 WO 2022083460A1
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led
full
color
display screen
wavelength
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PCT/CN2021/122936
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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 WO2022083460A1 publication Critical patent/WO2022083460A1/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
    • 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 relates to a three-primary-color pixel unit for a full-color LED display screen and a full-color LED display screen using the three-primary-color pixel unit.
  • the imaging principle of the full-color LED display is as follows: the red LED, green LED and blue LED form a pixel unit, that is, a GRB pixel unit, and a GRB pixel unit corresponds to a minimum imaging unit, in which the red LED emits
  • the wavelength of the red light is 615-700nm
  • the wavelength of the green light emitted by the green LED is 515-560nm
  • the wavelength of the blue light emitted by the blue LED is 415-470nm
  • the red light emitted by the red LED the green light emitted by the green LED It can be combined with the blue light emitted by the blue LED to form a full-color light.
  • the full-color LED display is composed of a plurality of such pixel units in a matrix arrangement.
  • the control system controls the on-off of the red LED, green LED and blue LED in the GRB pixel unit to display full-color text, images, videos, etc. various information.
  • the blue light emitted by the blue LED in the GRB pixel unit is between 455-470nm, the blue light is beneficial 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 It is the blue light of 430nm that is the most harmful to the eyes, and users who are exposed to this blue 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 three-primary color pixel unit for a full-color LED display screen.
  • a three-primary color pixel unit for a full-color LED display screen includes a bracket, and the bracket is provided with at least one red LED, at least one green LED and at least one purple LED, so The wavelength of the red light emitted by the red LED is 615-700 nm, the wavelength of the green light emitted by the green LED is 515-560 nm, and the wavelength of the purple light emitted by the purple LED is 385-415 nm.
  • the number of the red LED, the green LED and the violet LED is one.
  • the present invention also provides a full-color LED display screen, which is composed of a plurality of the aforementioned three-primary color pixels to form a matrix arrangement structure, a plurality of the three-primary color pixel units are arranged in a matrix, and a plurality of the three-primary-color pixel units arranged horizontally, etc.
  • the spacing is set, and a plurality of the three-primary color pixel units arranged vertically are set at equal spacing.
  • the present invention replaces the blue LEDs in the pixels of the full-color LED display screen in the prior art with purple light with a wavelength of 385-415 nm, and the red light emitted by the red LED, the green light emitted by the green LED and the purple light emitted by the purple LED can be compounded Full-color light is formed, in which the blue light formed by the composite is harmless to the human eye, and there is no blue light with a wavelength between 415-455 nm that is harmful to the human eye, and the violet light with a wavelength of 385-415 nm can also prevent the human eye from myopia. Therefore, using the three-primary color pixel unit of the present invention to make a full-color LED display screen can prevent 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 three-primary color pixel unit 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, and at least one purple LED.
  • the wavelength of the red light emitted by the light LED is 615-700 nm
  • the wavelength of the green light emitted by the green LED is 515-560 nm
  • the wavelength of the purple light emitted by the violet LED is 385-415 nm.
  • the number of the red LED, the green LED and the violet LED is one.
  • One pixel unit of the present invention corresponds to displaying one minimum imaging unit, and the full-color LED display screen is composed of a plurality of three-primary color pixels as described above to form a matrix arrangement structure.
  • the primary color pixel units are set at equal intervals.
  • Various information such as full-color text, images, videos, etc. can be displayed by controlling the on-off of the red LED, green LED and purple LED in the pixel unit by the control system.
  • the present invention replaces the blue LEDs in the pixels of the full-color LED display screen in the prior art with purple light with a wavelength of 385-415 nm, and the red light emitted by the red LED, the green light emitted by the green LED and the purple light emitted by the purple LED can be compounded Full-color light is formed, in which the blue light formed by the composite is harmless to the human eye, and there is no blue light with a wavelength between 415-455 nm that is harmful to the human eye, and the violet light with a wavelength of 385-415 nm can also prevent the human eye from myopia. Therefore, using the three-primary color pixel unit of the present invention to make a full-color LED display screen can prevent 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显示屏的三基色像素单元，包括一支架，支架上设有至少一红光LED、至少一绿光LED和至少一紫光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。本发明用波长为385～415nm的紫光替换现有技术全彩LED显示屏的像素中中的蓝光LED，红光LED发出的红光、绿光LED发出的绿光和紫光LED发出的紫光可以复合形成全彩色光，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。本发明还提供了一种由若干三基色像素单元做出的防止人眼近视的全彩LED显示屏。

Description

用于全彩LED显示屏的三基色像素单元及全彩LED显示屏 技术领域
本发明涉及一种用于全彩LED显示屏的三基色像素单元及采用该三基色像素单元的全彩LED显示屏。
背景技术
目前，全彩LED显示屏的成像原理是：将红光LED、绿光LED和蓝光LED构成一个像素单元，即GRB像素单元，一个GRB像素单元对应显示一个最小成像单元，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光。全彩LED显示屏由多个这样的像素单元组成矩阵排列结构，通过控制系统调控GRB像素单元中的红光LED、绿光LED和蓝光LED的亮灭来显示全彩色的文字、图像、视频等各种信息。
虽然GRB像素单元中的蓝光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蓝光环境下，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显示屏的三基色像素单元。
本发明是这样实现的，一种用于全彩LED显示屏的三基色像素单元，包括一支架，所述支架上设有至少一红光LED、至少一绿光LED和至少一紫光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。
优选地，所述红光LED、绿光LED和紫光LED的数量均为一个。
本发明还提供了一种全彩LED显示屏，由若干如前所述的三基色像素组成 矩阵排列结构，若干所述三基色像素单元呈矩阵排列，横向排列的若干所述三基色像素单元等间距设置，纵向排列的若干所述三基色像素单元等间距设置。
本发明用波长为385～415nm的紫光替换现有技术全彩LED显示屏的像素中中的蓝光LED，红光LED发出的红光、绿光LED发出的绿光和紫光LED发出的紫光可以复合形成全彩色光，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，利用本发明的三基色像素单元做出全彩LED显示屏，可以防止人眼近视。
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显示屏的三基色像素单元，包括一支架，支架上设有至少一红光LED、至少一绿光LED和至少一紫光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。
优选地，所述红光LED、绿光LED和紫光LED的数量均为一个。
本发明的一个像素单元对应显示一个最小成像单元，全彩LED显示屏由若 干如前所述的三基色像素组成矩阵排列结构，横向排列的若干三基色像素单元等间距设置，纵向排列的若干三基色像素单元等间距设置。通过控制系统调控像素单元中的红光LED、绿光LED和紫光LED的亮灭来显示全彩色的文字、图像、视频等各种信息。
本发明用波长为385～415nm的紫光替换现有技术全彩LED显示屏的像素中中的蓝光LED，红光LED发出的红光、绿光LED发出的绿光和紫光LED发出的紫光可以复合形成全彩色光，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，利用本发明的三基色像素单元做出全彩LED显示屏，可以防止人眼近视。
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 (3)

  1. 一种用于全彩LED显示屏的三基色像素单元，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和至少一紫光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。
  2. 根据权利要求1所述的用于全彩LED显示屏的三基色像素单元，其特征在于，所述红光LED、绿光LED和紫光LED的数量均为一个。
  3. 一种全彩LED显示屏，其特征在于，由若干如权利要求1或2所述的三基色像素单元组成矩阵排列结构，若干所述三基色像素单元呈矩阵排列，横向排列的若干所述三基色像素单元等间距设置，纵向排列的若干所述三基色像素单元等间距设置。
PCT/CN2021/122936 2020-10-19 2021-10-10 用于全彩led显示屏的三基色像素单元及全彩led显示屏 WO2022083460A1 (zh)

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Citations (6)

* 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
CN1704798A (zh) * 2004-05-25 2005-12-07 吕文杰 荧光全彩屏幕
CN102790163A (zh) * 2012-01-16 2012-11-21 中山大学 一种基于紫光led芯片的白光led及其照明装置
CN204204351U (zh) * 2014-10-08 2015-03-11 木林森股份有限公司 一种高像素led显示屏
CN106413643A (zh) * 2014-06-03 2017-02-15 坪田实验室股份有限公司 近视预防物品
CN109256453A (zh) * 2017-07-13 2019-01-22 东贝光电科技股份有限公司 Led发光装置

Patent Citations (6)

* 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
CN1704798A (zh) * 2004-05-25 2005-12-07 吕文杰 荧光全彩屏幕
CN102790163A (zh) * 2012-01-16 2012-11-21 中山大学 一种基于紫光led芯片的白光led及其照明装置
CN106413643A (zh) * 2014-06-03 2017-02-15 坪田实验室股份有限公司 近视预防物品
CN204204351U (zh) * 2014-10-08 2015-03-11 木林森股份有限公司 一种高像素led显示屏
CN109256453A (zh) * 2017-07-13 2019-01-22 东贝光电科技股份有限公司 Led发光装置

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