WO2019218109A1 - Liquid crystal display screen device for recognizing interactive article, and method for recognizing interactive article therefor - Google Patents

Liquid crystal display screen device for recognizing interactive article, and method for recognizing interactive article therefor Download PDF

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Publication number
WO2019218109A1
WO2019218109A1 PCT/CN2018/086687 CN2018086687W WO2019218109A1 WO 2019218109 A1 WO2019218109 A1 WO 2019218109A1 CN 2018086687 W CN2018086687 W CN 2018086687W WO 2019218109 A1 WO2019218109 A1 WO 2019218109A1
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Prior art keywords
light
liquid crystal
crystal display
layer
led lamp
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PCT/CN2018/086687
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French (fr)
Chinese (zh)
Inventor
曾宏
陈永新
李振全
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深圳盈天下视觉科技有限公司
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Priority to PCT/CN2018/086687 priority Critical patent/WO2019218109A1/en
Publication of WO2019218109A1 publication Critical patent/WO2019218109A1/en

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light

Definitions

  • the present invention provides a liquid crystal display device for recognizing an interactive object, such as a two-dimensional code, a barcode, and the like, which can be read and on the screen in the case of being in close contact with the screen.
  • the position is tracked in real time, and it can display the contents of the LCD screen normally.
  • the light homogenizing film layer comprises a light homogenizing sheet disposed above the PCB bottom plate and a light homogenizing film disposed on the light homogenizing sheet, and the through hole is disposed on the light homogenizing sheet.
  • the protective layer is tempered glass.
  • the light emitted by the visible light LED lamp is homogenized by the homogenizing film layer to provide a backlight for the liquid crystal display layer, and the visible light reflected by the liquid crystal display layer is reused in the homogenizing film layer backlight; the infrared fill light LED lamp is emitted The light is sequentially irradiated through the homogenizing film layer, the liquid crystal display layer and the protective layer on the graphic code of the interactive object;
  • the light generating reflection of the illumination recognition pattern code is collected by the infrared camera and identifies the image information of the graphic code
  • the light-homogenizing film layer comprises a light-shielding sheet disposed above the PCB substrate and a light-homogenizing film disposed above the light-shading sheet, and the through hole is disposed on the light-shading sheet.
  • FIG. 1 is a schematic diagram of a liquid crystal display device for identifying an interactive object according to the present invention
  • FIG. 2 is a light path of a liquid crystal display layer in a liquid crystal display device for identifying an interactive object according to the present invention
  • FIG. 3 is a schematic diagram of an optical path of an infrared fill LED lamp in a liquid crystal display device for identifying an interactive object according to the present invention
  • FIG. 4 is a schematic diagram of an optical path of an infrared camera receiving light in a liquid crystal display device for identifying an interactive object according to the present invention.
  • the liquid crystal display device includes a top-down protective layer 10, a liquid crystal display layer 20, and a backlight 30.
  • the backlight 30 includes a PCB bottom plate 31, and is distributed on the PCB bottom plate 31.
  • a uniform film for homogenizing the light emitted from the visible light LED lamp 32 and the infrared fill light LED lamp 33 is provided above the PCB bottom plate 31, a uniform film for homogenizing the light emitted from the visible light LED lamp 32 and the infrared fill light LED lamp 33 is provided.
  • the graphic code 101 on the bottom surface of the interactive object 100 is generally a two-dimensional code or a barcode, and is printed by paper carbon ink.
  • the light homogenizing film layer 35 includes a light homogenizing sheet 351 disposed above the PCB bottom plate 31 and a light homogenizing film 352 disposed above the light homogenizing sheet.
  • the through hole 3501 is disposed on the light homogenizing sheet 351, and the infrared camera 34 is provided.
  • the infrared rays reflected from the graphic code of the interactive object 100 are received through the through holes 3501 on the light homogenizing sheet 351.
  • the light emitted by the visible light LED lamp belongs to the visible spectrum range; the infrared fill light LED lamp may be an infrared light of different wavelength ranges; the infrared camera may be other infrared cameras of different wavelength ranges; .
  • the protective layer 10 is made of tempered glass;
  • the light homogenizing sheet 351 is made of PS (polystyrene), PMMA (polymethyl methacrylate), PC (polycarbonate), PP (polypropylene), PVC ( Polyvinyl chloride), PET (polyester resin) and other materials are formed;
  • the homogenizing film 352 is made of PS (polystyrene), PMMA (polymethyl methacrylate), PC (polycarbonate), PP (polypropylene) ), PV C (polyvinyl chloride), PET (polyester resin) and other materials are formed.
  • the present invention also provides a method for identifying an interactive object by a liquid crystal display device, comprising the following steps:
  • the light emitted by the visible light LED lamp 32 is homogenized by the light-homogenizing film layer 34 to provide a backlight for the liquid crystal display layer 20, and the visible light reflected by the liquid crystal display layer 20 is backlit and reused in the light-homogenizing film layer 35;
  • the light emitted by the fill light LED lamp 33 sequentially passes through the light homogenizing film layer 34, the liquid crystal display layer 20 and the protective layer 10 to illuminate the graphic code 101 of the interactive object 100;
  • the light-reflecting of the illumination pattern code 101 is acquired by the infrared camera 35 and the image information of the graphic code 101 is recognized.
  • the light-homogenizing film layer 35 is provided with a through hole 3501 corresponding to the infrared camera 34.
  • the light homogenizing film layer 35 includes a light homogenizing sheet 351 disposed above the PCB bottom plate 31 and a light homogenizing film 352 disposed above the light homogenizing sheet 351.
  • the through hole 3501 is disposed on the light homogenizing sheet 351, and the infrared camera 34 passes through The through hole 3501 on the light homogenizer 351 receives infrared rays reflected from the graphic code of the interactive object 100.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)

Abstract

Provided in the present invention is a liquid crystal display screen device for recognizing an interactive article, which falls within the field of image recognition. The device comprises a protection layer, a liquid crystal display layer and a backlight source from top to bottom. The backlight source comprises a PCB bottom plate, wherein the PCB bottom plate is provided with a visible-light LED lamp, an infrared light-supplementation LED lamp and an infrared camera for recognizing a pattern. A light-uniformizing membrane layer, which is used for uniformizing light emitted by the visible-light LED lamp and the infrared light-supplementation LED lamp, is provided above the PCB bottom plate, and the light-uniformizing membrane layer is provided with a through hole corresponding to the infrared camera. Compared with the prior art, according to the liquid crystal display screen device and the method for recognizing an interactive article therefor, where an interactive article is closely attached to a screen, light emitted by the infrared light-supplementation LED lamp passes through the light-uniformizing membrane layer and the liquid crystal display layer to irradiate the interactive article with a graphical code, and information of the graphical code is read by the infrared camera, and the position is tracked in real time on the screen; moreover, light emitted by the visible-light LED lamp is uniformized by the light-uniformizing membrane layer, so as to display the content of the liquid crystal screen normally.

Description

发明名称:识别互动物件的液晶显示屏装置及其识别互动物件的方 法  Title of Invention: Liquid Crystal Display Device for Identifying Interactive Objects and Method of Identifying Interactive Objects
技术领域  Technical field
[0001] 本发明涉及图像识别领域, 特别是一种识别互动物件的液晶显示屏装置及其识 别互动物件的方法。  [0001] The present invention relates to the field of image recognition, and more particularly to a liquid crystal display device for identifying interactive objects and a method for identifying interactive objects.
背景技术  Background technique
[0002] 现有的识别互动物件的方案有 2种: 最常见的是投影方案, 将投影机与红外摄 像机放置在背投幕后面, 背投幕前会显示投影的内容, 当有被识别物贴紧屏幕 表面时, 红外摄像机可以捕捉到识别物的图形, 从而实现图像的识别与跟踪, 该方案的主要缺点时显示效果一般、 抗光性能差、 需要比较大的背投空间, 稳 定性比较差。 另一种是, 基于电容触控屏, 制作的一个电容触控底座, 该底座 预设了不同的触控点组合, 通过程序的设定, 这些触控点组合即为某种自定义 物体, 再将该底座承载识别物, 从而实现识别物体, 该方案主要缺点是, 只能 作为演示实用, 因为他无法捕捉预设以外的图形, 由于触控膜技术的局限, 当 识别物比较多的时候, 底座就会比较大, 从而影响演示的体验。  [0002] There are two existing schemes for identifying interactive objects: The most common one is a projection scheme, where the projector and the infrared camera are placed behind the rear projection screen, and the projected content is displayed before the rear projection screen, when there is an object to be recognized. When the screen surface is close to the screen, the infrared camera can capture the image of the identifier, thereby realizing the image recognition and tracking. The main disadvantages of the scheme are general display effect, poor light resistance, and need for a large rear projection space. difference. The other is a capacitive touch base based on a capacitive touch screen. The base is preset with different touch point combinations. Through the setting of the program, these touch point combinations are some custom objects. The base is then carried with an identifier to realize the recognition of the object. The main disadvantage of the solution is that it can only be used as a demonstration, because he cannot capture graphics other than the preset. Due to the limitations of the touch film technology, when the identification is relatively large, The base will be larger, which will affect the demo experience.
发明概述  Summary of invention
技术问题  technical problem
问题的解决方案  Problem solution
技术解决方案  Technical solution
[0003] 针对上述问题, 本发明提供了一种识别互动物件的液晶显示屏装置, 例如二维 码、 条形码等图形码, 在与屏幕贴紧的情况下, 可以被读取, 并在屏幕上实时 跟踪位置, 同时它可以正常显示液晶屏的内容。  [0003] In view of the above problems, the present invention provides a liquid crystal display device for recognizing an interactive object, such as a two-dimensional code, a barcode, and the like, which can be read and on the screen in the case of being in close contact with the screen. The position is tracked in real time, and it can display the contents of the LCD screen normally.
[0004] 本发明采用的技术方案为:  [0004] The technical solution adopted by the present invention is:
[0005] 一种识别互动物件的液晶显示屏装置, 包括有从上至下的防护层、 液晶显示层 和背光源, 所述背光源包括 PCB底板, PCB底板上分布有可见光 LED灯、 红外补 光 LED灯以及用于识别图案的红外摄像头, PCB底板上方设有用于对可见光 LED 灯和红外补光 LED灯发出的光匀化的匀光膜片层, 匀光膜片层上设有与红外摄像 头对应的通孔。 [0005] A liquid crystal display device for identifying an interactive object includes a top-down protective layer, a liquid crystal display layer, and a backlight. The backlight includes a PCB bottom plate, and a visible light LED lamp is distributed on the PCB bottom plate. The light LED lamp and the infrared camera for recognizing the pattern, the top layer of the PCB is provided with a homogenizing film layer for homogenizing the light emitted by the visible LED lamp and the infrared complementary LED lamp, and the uniform film layer is provided with infrared The through hole corresponding to the camera.
[0006] 优选地, 所述匀光膜片层包括设置在 PCB底板上方的匀光片和设置在匀光片上 的匀光膜, 通孔设置在匀光片上。  [0006] Preferably, the light homogenizing film layer comprises a light homogenizing sheet disposed above the PCB bottom plate and a light homogenizing film disposed on the light homogenizing sheet, and the through hole is disposed on the light homogenizing sheet.
[0007] 优选地, 所述防护层为钢化玻璃。  [0007] Preferably, the protective layer is tempered glass.
[0008] 本发明还提供一种液晶显示屏装置识别互动物件的方法, 包括以下步骤: The present invention also provides a method for identifying an interactive object by a liquid crystal display device, comprising the following steps:
[0009] 1) 具有图形码的互动物件置于液晶显示层的防护层前方; [0009] 1) an interactive object having a graphic code is placed in front of a protective layer of the liquid crystal display layer;
[0010] 2) 所述 PCB底板上可见光 LED灯和红外补光 LED灯发出光线;  [0010] 2) the visible light LED lamp and the infrared fill light LED lamp on the PCB bottom plate emit light;
[0011] 3) 可见光 LED灯发出的光被匀光膜片层匀化为液晶显示层提供背光, 由液晶 显示层反射回的可见光在匀光膜片层背光再利用; 红外补光 LED灯发出的光依次 穿过匀光膜片层、 液晶显示层和防护层照射在互动物件的图形码上;  [0011] 3) The light emitted by the visible light LED lamp is homogenized by the homogenizing film layer to provide a backlight for the liquid crystal display layer, and the visible light reflected by the liquid crystal display layer is reused in the homogenizing film layer backlight; the infrared fill light LED lamp is emitted The light is sequentially irradiated through the homogenizing film layer, the liquid crystal display layer and the protective layer on the graphic code of the interactive object;
[0012] 4) 照射识别图形码的光发生反射被红外摄像头采集并识别图形码的图像信息  [0012] 4) The light generating reflection of the illumination recognition pattern code is collected by the infrared camera and identifies the image information of the graphic code
[0013] 优选地, 所述匀光膜片层上设有与红外摄像头对应的通孔。 [0013] Preferably, the light-homogenizing film layer is provided with a through hole corresponding to the infrared camera.
[0014] 更优选地, 所述匀光膜片层包括设置在 PCB底板上方的匀光片和设置在匀光片 上方的匀光膜, 通孔设置在匀光片上。  [0014] More preferably, the light-homogenizing film layer comprises a light-shielding sheet disposed above the PCB substrate and a light-homogenizing film disposed above the light-shading sheet, and the through hole is disposed on the light-shading sheet.
发明的有益效果  Advantageous effects of the invention
有益效果  Beneficial effect
[0015] 与现有技术相比, 本发明的有益效果在于: 本发明提供一种液晶显示屏装置及 其识别互动物件的方法, 互动物件在与屏幕贴紧的情况下, 通过红外补光 LED灯 发出的光穿过液晶显示层照射具有图形码的图案, 被红外摄像头读取图形码信 息, 并在屏幕上实时跟踪位置, 同时由于可见光 LED灯发出的光被匀光膜片层匀 化, 这样可以正常显示液晶屏的内容。  [0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides a liquid crystal display device and a method for recognizing an interactive object thereof, wherein the interactive object is in infrared light-filled LED when it is in close contact with the screen. The light emitted by the lamp illuminates the pattern having the graphic code through the liquid crystal display layer, the graphic code information is read by the infrared camera, and the position is tracked in real time on the screen, and at the same time, the light emitted by the visible light LED lamp is homogenized by the uniform film layer. This will display the contents of the LCD screen normally.
对附图的简要说明  Brief description of the drawing
附图说明  DRAWINGS
[0016] 图 1为本发明提供的一种识别互动物件的液晶显示屏装置的示意图;  1 is a schematic diagram of a liquid crystal display device for identifying an interactive object according to the present invention;
[0017] 图 2为本发明提供的一种识别互动物件的液晶显示屏装置中液晶显示层的光路 示意图; 2 is a light path of a liquid crystal display layer in a liquid crystal display device for identifying an interactive object according to the present invention; Schematic diagram
[0018] 图 3为本发明提供的一种识别互动物件的液晶显示屏装置中红外补光LED灯发 出光的光路示意图;  3 is a schematic diagram of an optical path of an infrared fill LED lamp in a liquid crystal display device for identifying an interactive object according to the present invention;
[0019] 图 4为本发明提供的一种识别互动物件的液晶显示屏装置中红外摄像头接收光 线的光路示意图。  4 is a schematic diagram of an optical path of an infrared camera receiving light in a liquid crystal display device for identifying an interactive object according to the present invention.
发明实施例  Invention embodiment
本发明的实施方式  Embodiments of the invention
[0020] 根据附图对本发明提供的优选实施方式做具体说明。  [0020] The preferred embodiments provided by the present invention are specifically described in accordance with the accompanying drawings.
[0021] 图 1至图 4, 为本发明提供的一种识别互动物件的液晶显示屏装置的优选实施方 式。 如图 1至图 4所示, 所述液晶显示屏装置包括有从上至下的防护层 10、 液晶 显示层 20和背光源 30, 所述背光源 30包括PCB底板 31, PCB底板 31上分布有可见 光LED灯 32、 红外补光LED灯 33以及用于识别图案的红外摄像头 34, PCB底板 31 上方设有用于对可见光LED灯 32和红外补光LED灯 33发出的光匀化的匀光膜片层 35 , 匀光膜片层 35上设有与红外摄像头 34对应的通孔 3501, 这样在具有图形码 的互动物件紧贴在液晶显示层 20的防护层 10上时, PCB底板 31上可见光LH)灯 32 和红外补光LED灯 33发出光, 由于红外补光LED灯 33发出的光具有较强的穿透特 性, 依次穿过匀光膜片层 35、 液晶显示层 20和防护层 10直接照射在互动物件 100 的图形码 101上, 并发生反射被伸出通孔 3501的红外摄像头 24采集到识别图形码 的图像信息; 而可见光LED灯 32所发出的可见光, 穿透性较差, 在匀光膜层 35上 发生衰减, 从而能量转换至匀光膜层 35使其发亮, 作为液晶显示层 20的光源, 并且可以阻止观察者观察到匀光膜层 35后面的其他结构部件, 观察者就会看到 一块如同普通液晶屏的显示效果, 并且在表面外观上来看, 不添加任何设备, 如红外触控框、 纳米触控膜、 电容触控膜、 有源标签等设备即可实现识别互动 物件 100。 所述互动物件 100底面的图形码 101—般为二维码或条形码等, 而且采 用纸质碳墨打印。  1 to FIG. 4 show a preferred embodiment of a liquid crystal display device for identifying an interactive object according to the present invention. As shown in FIG. 1 to FIG. 4, the liquid crystal display device includes a top-down protective layer 10, a liquid crystal display layer 20, and a backlight 30. The backlight 30 includes a PCB bottom plate 31, and is distributed on the PCB bottom plate 31. There are a visible light LED lamp 32, an infrared fill light LED lamp 33, and an infrared camera 34 for identifying a pattern. Above the PCB bottom plate 31, a uniform film for homogenizing the light emitted from the visible light LED lamp 32 and the infrared fill light LED lamp 33 is provided. The layer 35, the uniform film layer 35 is provided with a through hole 3501 corresponding to the infrared camera 34, so that when the interactive object having the graphic code is in close contact with the protective layer 10 of the liquid crystal display layer 20, the visible light on the PCB substrate 31 The LH) lamp 32 and the infrared fill LED lamp 33 emit light, and the light emitted from the infrared fill LED lamp 33 has strong penetrating characteristics, and sequentially passes through the light homogenizing film layer 35, the liquid crystal display layer 20, and the protective layer 10. Directly illuminating on the graphic code 101 of the interactive object 100, and the image information of the identification graphic code is collected by the infrared camera 24 that is reflected by the through hole 3501; and the visible light emitted by the visible light LED 32 is less penetrating. Attenuation occurs on the uniform film layer 35, so that the energy is converted to the light-homogenizing film layer 35 to be brightened, as a light source of the liquid crystal display layer 20, and the observer can be prevented from observing other structural components behind the light-homogenizing film layer 35, The observer will see a display effect like a normal LCD screen, and in terms of surface appearance, no device, such as an infrared touch frame, a nano touch film, a capacitive touch film, an active tag, etc. Implementing the identification of the interactive object 100. The graphic code 101 on the bottom surface of the interactive object 100 is generally a two-dimensional code or a barcode, and is printed by paper carbon ink.
[0022] 所述匀光膜片层 35包括设置在PCB底板 31上方的匀光片 351和设置在匀光片上 方的匀光膜 352, 通孔 3501设置在匀光片 351上, 红外摄像头 34穿过匀光片 351上 的通孔 3501接收从互动物件 100的图形码上反射回的红外线。 [0023] 值得注意的是, 所述可见光 LED灯发出的光属于可见光谱范围; 所述红外补光 LED灯可为不同波长范围的红外灯; 所述红外摄像头可为不同波长范围的其它红 外摄像头。 所述防护层 10采用钢化玻璃制成; 所述匀光片 351采用 PS (聚苯乙烯 ) 、 PMMA (聚甲基丙烯酸甲酯) 、 PC (聚碳酸酯) 、 PP (聚丙烯) 、 PVC ( 聚氯乙烯) 、 PET (涤纶树脂) 等材料制作形成; 所述匀光膜 352采用 PS (聚苯 乙烯) 、 PMMA (聚甲基丙烯酸甲酯) 、 PC (聚碳酸酯) 、 PP (聚丙烯) 、 PV C (聚氯乙烯) 、 PET (涤纶树脂) 等材料制作形成。 [0022] The light homogenizing film layer 35 includes a light homogenizing sheet 351 disposed above the PCB bottom plate 31 and a light homogenizing film 352 disposed above the light homogenizing sheet. The through hole 3501 is disposed on the light homogenizing sheet 351, and the infrared camera 34 is provided. The infrared rays reflected from the graphic code of the interactive object 100 are received through the through holes 3501 on the light homogenizing sheet 351. [0023] It should be noted that the light emitted by the visible light LED lamp belongs to the visible spectrum range; the infrared fill light LED lamp may be an infrared light of different wavelength ranges; the infrared camera may be other infrared cameras of different wavelength ranges; . The protective layer 10 is made of tempered glass; the light homogenizing sheet 351 is made of PS (polystyrene), PMMA (polymethyl methacrylate), PC (polycarbonate), PP (polypropylene), PVC ( Polyvinyl chloride), PET (polyester resin) and other materials are formed; the homogenizing film 352 is made of PS (polystyrene), PMMA (polymethyl methacrylate), PC (polycarbonate), PP (polypropylene) ), PV C (polyvinyl chloride), PET (polyester resin) and other materials are formed.
[0024] 本发明还提供一种液晶显示屏装置识别互动物件的方法, 包括以下步骤:  [0024] The present invention also provides a method for identifying an interactive object by a liquid crystal display device, comprising the following steps:
[0025] 1) 具有图形码 101的互动物件 100置于液晶显示层 20的防护层 10前方;  [0025] 1) an interactive object 100 having a graphic code 101 is placed in front of the protective layer 10 of the liquid crystal display layer 20;
[0026] 2) 所述 PCB底板 31上可见光 LED灯 32和红外补光 LED灯 33发出光线;  [0026] 2) the visible light LED lamp 32 and the infrared fill light LED lamp 33 on the PCB bottom plate 31 emit light;
[0027] 3) 可见光 LED灯 32发出的光被匀光膜片层 34匀化为液晶显示层 20提供背光, 由液晶显示层 20反射回的可见光在匀光膜片层 35背光再利用; 红外补光 LED灯 33 发出的光依次穿过匀光膜片层 34、 液晶显示层 20和防护层 10照射在互动物件 100 的图形码 101上;  [0027] 3) The light emitted by the visible light LED lamp 32 is homogenized by the light-homogenizing film layer 34 to provide a backlight for the liquid crystal display layer 20, and the visible light reflected by the liquid crystal display layer 20 is backlit and reused in the light-homogenizing film layer 35; The light emitted by the fill light LED lamp 33 sequentially passes through the light homogenizing film layer 34, the liquid crystal display layer 20 and the protective layer 10 to illuminate the graphic code 101 of the interactive object 100;
[0028] 4) 照射图形码 101的光发生反射被红外摄像头 35采集并识别图形码 101的图像 信息。  [0028] 4) The light-reflecting of the illumination pattern code 101 is acquired by the infrared camera 35 and the image information of the graphic code 101 is recognized.
[0029] 所述匀光膜片层 35上设有与红外摄像头 34对应的通孔 3501。 所述匀光膜片层 35 包括设置在 PCB底板 31上方的匀光片 351和设置在匀光片 351上方的匀光膜 352, 通孔 3501设置在匀光片 351上, 红外摄像头 34穿过匀光片 351上的通孔 3501接收 从互动物件 100的图形码上反射回的红外线。  [0029] The light-homogenizing film layer 35 is provided with a through hole 3501 corresponding to the infrared camera 34. The light homogenizing film layer 35 includes a light homogenizing sheet 351 disposed above the PCB bottom plate 31 and a light homogenizing film 352 disposed above the light homogenizing sheet 351. The through hole 3501 is disposed on the light homogenizing sheet 351, and the infrared camera 34 passes through The through hole 3501 on the light homogenizer 351 receives infrared rays reflected from the graphic code of the interactive object 100.
[0030] 综上所述, 本发明的技术方案可以充分有效的实现上述发明目的, 且本发明的 结构及功能原理都已经在实施例中得到充分的验证, 能达到预期的功效及目的 , 在不背离本发明的原理和实质的前提下, 可以对发明的实施例做出多种变更 或修改。 因此, 本发明包括一切在专利申请范围中所提到范围内的所有替换内 容, 任何在本发明申请专利范围内所作的等效变化, 皆属本案申请的专利范围 之内。  [0030] In summary, the technical solutions of the present invention can fully and effectively achieve the above objects, and the structural and functional principles of the present invention have been fully verified in the embodiments, and can achieve the expected effects and purposes. Many changes or modifications may be made to the embodiments of the invention without departing from the spirit and scope of the invention. Accordingly, the present invention includes all alternatives which are within the scope of the patent application, and any equivalent changes made within the scope of the present invention are within the scope of the patent application.

Claims

权利要求书 Claim
[权利要求 1] 一种识别互动物件的液晶显示屏装置, 包括有从上至下的防护层、 液 晶显示层和背光源, 其特征在于: 所述背光源包括 PCB底板, PCB底 板上分布有可见光 LED灯、 红外补光 LED灯以及用于识别图案的红外 摄像头, PCB底板上方设有用于对可见光 LED灯和红外补光 LED灯发 出的光匀化的匀光膜片层, 匀光膜片层上设有与红外摄像头对应的通 孔。  [Claim 1] A liquid crystal display device for identifying an interactive object, comprising a top-down protective layer, a liquid crystal display layer, and a backlight, wherein: the backlight comprises a PCB bottom plate, and the PCB bottom plate is distributed A visible light LED lamp, an infrared fill light LED lamp, and an infrared camera for recognizing a pattern, and a homogenizing film layer for homogenizing light emitted from the visible light LED lamp and the infrared fill light LED lamp is disposed above the PCB substrate, and the uniformizing film is provided. A through hole corresponding to the infrared camera is disposed on the layer.
[权利要求 2] 根据权利要求 1所述的识别互动物件的液晶显示屏装置, 其特征在于  [Claim 2] The liquid crystal display device for identifying an interactive object according to claim 1, wherein
: 所述匀光膜片层包括设置在 PCB底板上方的匀光片和设置在匀光片 上的匀光膜, 通孔设置在匀光片上。  The uniformized film layer includes a light homogenizing sheet disposed above the PCB substrate and a light homogenizing film disposed on the light homogenizing sheet, and the through hole is disposed on the light homogenizing sheet.
[权利要求 3] 根据权利要求 1所述的识别互动物件的液晶显示屏装置, 其特征在于  [Claim 3] The liquid crystal display device for identifying an interactive object according to claim 1, wherein
: 所述防护层为钢化玻璃。  : The protective layer is tempered glass.
[权利要求 4] 一种如权利要求 1至 3任一所述的液晶显示屏装置识别互动物件的方法 , 其特征在于, 包括以下步骤: [Claim 4] A method for identifying an interactive object by a liquid crystal display device according to any one of claims 1 to 3, comprising the steps of:
1) 具有图形码的互动物件置于液晶显示层的防护层前方;  1) an interactive object having a graphic code is placed in front of the protective layer of the liquid crystal display layer;
2) 所述 PCB底板上可见光 LED灯和红外补光 LED灯发出光线; 2) visible light LED light and infrared fill light LED light on the PCB bottom plate emit light;
3) 可见光 LED灯发出的光被匀光膜片层匀化为液晶显示层提供背光3) The light emitted by the visible light LED is homogenized by the homogenizing film layer to provide backlight for the liquid crystal display layer
, 由液晶显示层反射回的可见光在匀光膜片层背光再利用; 红外补光 LED灯发出的光依次穿过匀光膜片层、 液晶显示层和防护层照射在互 动物件的图形码上; The visible light reflected by the liquid crystal display layer is reused in the backlight layer of the homogenizing film; the light emitted by the infrared complementary LED lamp sequentially passes through the uniformizing film layer, the liquid crystal display layer and the protective layer to illuminate the graphic code of the interactive object ;
4) 照射识别图形码的光发生反射被红外摄像头采集并识别图形码的 图像信息。  4) The light that reflects the recognition pattern code reflects the image information that is captured by the infrared camera and identifies the graphic code.
[权利要求 5] 根据权利要求 4所述的液晶显示屏装置识别互动物件的方法, 其特征 在于: 所述匀光膜片层上设有与红外摄像头对应的通孔。  [Claim 5] The method for recognizing an interactive object according to the liquid crystal display device according to claim 4, wherein: the light-receiving film layer is provided with a through hole corresponding to the infrared camera.
[权利要求 6] 根据权利要求 5所述的液晶显示屏装置识别互动物件的方法, 其特征 在于: 所述匀光膜片层包括设置在 PCB底板上方的匀光片和设置在匀 光片上方的匀光膜, 通孔设置在匀光片上。 [Claim 6] The method for recognizing an interactive object according to the liquid crystal display device of claim 5, wherein: the light homogenizing film layer comprises a light homogenizing sheet disposed above the bottom plate of the PCB and disposed above the light homogenizing sheet The uniform film, the through hole is set on the light homogenizer.
PCT/CN2018/086687 2018-05-14 2018-05-14 Liquid crystal display screen device for recognizing interactive article, and method for recognizing interactive article therefor WO2019218109A1 (en)

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