WO2020020171A1 - 一种多功能透明显示设备及其控制方法 - Google Patents

一种多功能透明显示设备及其控制方法 Download PDF

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Publication number
WO2020020171A1
WO2020020171A1 PCT/CN2019/097322 CN2019097322W WO2020020171A1 WO 2020020171 A1 WO2020020171 A1 WO 2020020171A1 CN 2019097322 W CN2019097322 W CN 2019097322W WO 2020020171 A1 WO2020020171 A1 WO 2020020171A1
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Prior art keywords
transparent
liquid crystal
display
display device
led display
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English (en)
French (fr)
Inventor
林健源
历志辉
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Shenzhen TCL New Technology Co Ltd
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Shenzhen TCL New Technology Co Ltd
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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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • 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
    • G09F9/35—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 liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals

Definitions

  • the present invention relates to the field of display devices, and in particular, to a multifunctional transparent display device and a control method thereof.
  • Transparent display devices are more and more common in our daily life, and they have absolute advantages in some special fields.
  • the structure of the existing transparent display device is generally shown in FIG. 1 and FIG. 2.
  • FIG. 1 is a side-emitting LED display screen
  • FIG. 2 is a positive-emitting LED display screen.
  • the outer part is the transparent part.
  • the conventional front-view structure of the transparent LED display screen is composed of many LEDs arranged in a certain matrix, and multiple transparent LED display screens can be spliced into a larger size.
  • the existing LED display has another big flaw. Due to the large size of the LED, it is above 0.6mm (the current market 55 ”4K TFT-LCD pixel size is about 0.3mm), and it is limited by transparency, cost, and heat dissipation. , Reliability, and other factors, it is difficult to make the LED spacing very close, so it is difficult to make the resolution high. This limits the application of LED displays in close viewing (such as televisions, billboards, etc.). Inactive display areas cause consumers to see severe screen graininess.
  • an object of the present invention is to provide a multifunctional transparent display device and a control method thereof, which aim to solve the problems of the single function of the existing transparent display device and the graininess of the screen when viewed at close range.
  • a multifunctional transparent display device includes a transparent LED display screen, a dynamic scattering type liquid crystal display disposed on a light emitting side of the transparent LED display screen, and a control for controlling the transparent LED display screen and the dynamic scattering type liquid crystal display.
  • the controller is electrically connected to the transparent LED display and the dynamic scattering type liquid crystal display, respectively, and the controller is used to control the transparent LED display and the dynamic scattering type liquid crystal display to improve the image display effect and be transparent. Display, shading and transparency.
  • the dynamic scattering type liquid crystal display is disposed in parallel with the transparent LED display screen.
  • the transparent LED display screen includes a transparent substrate and a plurality of LED elements evenly disposed on the transparent substrate.
  • the transparent LED display screen further includes a transparent packaging structure for packaging the LED element.
  • the transparent LED display screen further includes a uniform light element provided in one-to-one correspondence with the LED elements, and the uniform light element is used to emit light of uneven brightness emitted by the LED elements. Processed as light with uniform brightness.
  • the multi-functional transparent display device wherein the dynamic scattering type liquid crystal display includes two transparent substrates and a liquid crystal layer disposed between the two transparent substrates, and the liquid crystal layer is a doped ionic organic conductive material. Liquid crystal material.
  • a method for controlling a multifunctional transparent display device comprising the steps:
  • the controller simultaneously sends an on signal to the transparent LED display screen and the dynamic scattering liquid crystal display.
  • the method for controlling a multifunctional transparent display device wherein, by controlling a vertical distance between the DS-LCD and a transparent LED display screen, the transparent display device has a different image display effect, and the DS-LCD and transparent
  • the vertical distance h (p / 2-c * tan (b / 2)) / tan (a / 2) of the LED display screen, where p is the distance between adjacent pixels in the transparent LED display screen, so
  • the c is the thickness of the dynamic scattering type liquid crystal display, the a is the light emitting angle of the LED in the transparent LED display, and the b is the light emitted by the LED in the transparent LED display passing through the dynamic scattering liquid crystal display. Angle of light after scattering.
  • the control method of the multifunctional transparent display device wherein the vertical distance between the DS-LCD and the transparent LED display is adjusted so that the distance between adjacent pixels in the transparent LED display is 0, to obtain the best image display effect. .
  • the method for controlling a multi-functional transparent display device further comprising the steps of: when the multi-functional transparent display device is used as a transparent display, sending to the transparent LED display and the dynamic scattering type liquid crystal display through a controller respectively; On and off signals.
  • the method for controlling a multifunctional transparent display device further comprising the steps of: when the multifunctional transparent display device is used as a light shielding device, sending a shutdown to the transparent LED display and the dynamic scattering liquid crystal display through a controller respectively; Signal and on signal.
  • the transparent LED display when the transparent LED display is turned off and the DS-LCD is turned on, the transparent LED display is in a transparent state, the DS-LCD is in an opaque state, and the multifunctional transparent
  • the display device can be used as a shading device.
  • the method for controlling a multifunctional transparent display device further comprising the step of: when the multifunctional transparent display device is used as transparent glass, sending a shutdown to the transparent LED display and the dynamic scattering type liquid crystal display through a controller at the same time. signal.
  • the transparent LED display and the DS-LCD are both off, the transparent LED display and the DS-LCD are both in a transparent state at this time, and the multifunctional transparent display is
  • the device can be used as transparent glass.
  • the multifunctional transparent display device includes a transparent LED display screen, and a dynamic scattering type liquid crystal display provided on a light emitting side of the transparent LED display screen, And a controller for controlling the transparent LED display screen and the dynamic scattering type liquid crystal display.
  • the start signal can be sent to eliminate the rough image and effectively improve the image display effect of the multi-functional transparent display device.
  • FIG. 1 is a schematic structural diagram of a side-emitting LED display screen in the prior art.
  • FIG. 2 is a schematic structural diagram of a positive-emitting LED display screen in the prior art.
  • FIG. 3 is a schematic diagram of a preferred embodiment for calculating the transmittance of a side-emitting LED display screen in the prior art.
  • FIG. 4 is a schematic diagram of a conventional embodiment for calculating the transmittance of a positive-emitting LED display screen.
  • FIG. 5 is a schematic structural diagram of a transparent LED display screen after splicing in the prior art.
  • FIG. 6 is a schematic diagram when a user views a transparent LED display screen in the prior art.
  • FIG. 7 is a schematic structural diagram of a preferred embodiment of a multifunctional transparent display device according to the present invention.
  • FIG. 8 is a schematic diagram of the working principle of the dynamic scattering liquid crystal display of the present invention.
  • FIG. 9 is a flowchart of a preferred embodiment of a method for controlling a multifunctional transparent display device according to the present invention.
  • FIG. 10 is a schematic diagram showing a change in light emission angle of light emitted from a transparent LED display screen after being scattered by DS-LCD.
  • FIG. 11 is a schematic diagram when the distance between adjacent pixels of a display image in a DS-LCD in a multifunctional transparent display device of the present invention is zero.
  • FIG. 12 is a schematic diagram when the distance between adjacent pixels of a display image in a DS-LCD in a multifunctional transparent display device of the present invention is greater than 0.
  • FIG. 13 is a schematic diagram when the distance between adjacent pixels of a display image in a DS-LCD in a multifunctional transparent display device of the present invention is less than 0.
  • the present invention provides a multifunctional transparent display device and a control method thereof.
  • the present invention is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
  • the existing transparent LED displays are limited by factors such as transparency, cost, and reliability of heat dissipation, the setting distance between adjacent LEDs is large, and the larger LED pitch will result in lower screen resolution.
  • the picture When watching the LED display, the picture will appear rough and incoherent, which will reduce the picture display effect.
  • the structure of the existing transparent LED display screen is shown in FIG. 6, where A is the distance between adjacent pixels, D is the viewing distance, and s is the viewing angle.
  • the size of the viewing angle s determines the imaging on the retina.
  • the size of the image on the retina determines the visual clarity, the specific calculation formula is as follows: Set d to be the minimum angle of view formed between two points in the object space by a person with normal vision. Due to the limitations of transparency, cost, heat dissipation, and reliability requirements of LED displays commonly used in the market, the The value of the distance A cannot be 0. At this time, when the viewing distance D is sufficiently small, the viewing angle s is greater than the d, that is, the human eye can distinguish the non-display area between the pixels, resulting in a rough screen. Coherent feeling.
  • the present invention provides a multifunctional transparent display device.
  • the multifunctional transparent display device includes a transparent LED display screen 100 and dynamic scattering disposed on the light-emitting side of the transparent LED display screen 100.
  • the dynamic scattering type liquid crystal display is arranged in parallel with the transparent LED display screen.
  • a dynamic scattering type liquid crystal display is provided on the light-emitting side of the transparent LED display screen, and an on signal is simultaneously sent to the transparent LED display screen and the dynamic scattering type liquid crystal display by a controller, thereby eliminating the rough feeling of the screen, thereby effectively Improve the image display effect of multi-functional transparent display devices.
  • a dynamic scattering liquid crystal display (DS-LCD) in the present invention includes two transparent substrates and a liquid crystal layer disposed between the two transparent substrates.
  • the liquid crystal layer is a doped ionic organic Liquid crystal material of conductive material.
  • the electro-optical characteristics of the DS-LCD belong to the current effect.
  • the specific working principle is shown in FIG. 8.
  • the DS-LCD is in an unpowered state, that is, an off state.
  • the liquid crystal molecules are arranged in an orderly manner, and the liquid crystal layer is transparent. That is, the light emitted by the transparent LED display screen can directly pass through the DS-LCD according to the initial light exit angle; when the DS-LCD is in a power-on state, a movement of an ionic organic conductive material is formed in the liquid crystal layer.
  • the generated eddy current state the light emitted by the transparent LED display screen will undergo strong scattering when passing through the DS-LCD, thereby changing its light-emitting angle.
  • the transparent LED display screen includes a transparent substrate, a plurality of LED elements evenly disposed on the transparent substrate, and a transparent packaging structure for packaging the LED elements.
  • the transparent LED display screen further includes a uniform light element provided in one-to-one correspondence with the LED elements, and the uniform light element is used for processing light with uneven brightness emitted by the LED element into light with uniform brightness.
  • the present invention also provides a method for controlling a multifunctional transparent display device, as shown in FIG. 9, which includes steps:
  • the controller sends an open signal to the transparent LED display screen and the dynamic scattering liquid crystal display simultaneously through a controller;
  • the controller sends an open signal and a close signal to the transparent LED display screen and the dynamic scattering type liquid crystal display through a controller;
  • the controller sends a close signal and an open signal to the transparent LED display screen and the dynamic scattering type liquid crystal display through the controller;
  • a shutdown signal is simultaneously sent to the transparent LED display screen and the dynamic scattering type liquid crystal display through a controller.
  • the multi-functional transparent display device when the multi-functional transparent display device needs to improve the image display effect, it is necessary to send an on signal to the transparent LED display and the dynamic scattering type liquid crystal display at the same time through the controller. At this time, the transparent LED display The emitted light will be scattered when passing through the DS-LCD, and its light emitting angle will be changed.
  • the dynamic scattering type liquid crystal display is arranged in parallel with the transparent LED display screen, and the vertical distance between the dynamic scattering type liquid crystal display and the transparent LED display screen is h.
  • the vertical distance between the DS-LCD and the transparent LED display is set so that the transparent display device has a high image display effect, that is, the user can see a clear, grain-free continuous picture.
  • a vertical distance h (p / 2-c * tan (b / 2)) / tan (a / 2) between the dynamic scattering type liquid crystal display and the transparent LED display screen
  • p is the distance between adjacent pixels in the transparent LED display
  • c is the thickness of the dynamic scattering liquid crystal display
  • a is the light emitting angle of the LED in the transparent LED display
  • b The light emitting angle after the light emitted by the LED in the transparent LED display screen is scattered by the dynamic scattering type liquid crystal display.
  • the change of the light emitting angle can change the spacing between adjacent pixels of the final displayed image. The smaller the distance between adjacent pixels is, the less rough the screen is due to the space between pixels, which improves the image display effect.
  • the light output angle also changes to some extent
  • the distance between adjacent pixels of the displayed image is greater than 0, but smaller than the distance between the original adjacent pixels of the transparent LED display.
  • the display effect of the image is somewhat better than that of the separate transparent LED display. Improvement, but not optimal.
  • the vertical distance between the dynamic scattering liquid crystal display and the transparent LED display is as shown in FIG. 13, after the light emitted by the transparent LED display is scattered by DS-LCD, the light output angle also changes to a certain extent. At this time, the distance between adjacent pixels of the displayed image is less than 0, and the final image will have a color mixing phenomenon, which affects the viewing effect.
  • the multi-functional transparent display device when used as a transparent display screen, an on signal and a close signal are respectively sent to the transparent LED display screen and the dynamic scattering type liquid crystal display through a controller.
  • the transparent LED display when the transparent LED display is turned on and the DS-LCD is turned off, the DS-LCD appears transparent at this time.
  • the content displayed by the transparent LED display can be completely presented to the viewer through the DS-LCD.
  • the multifunctional transparent display device can be used as a transparent display.
  • the controller sends a close signal and an open signal to the transparent LED display screen and the dynamic scattering type liquid crystal display through a controller, respectively.
  • the transparent LED display is turned off and the DS-LCD is turned on, the DS-LCD is opaque at this time.
  • the multifunctional transparent display device can be used as a light shielding device and can be applied to windows and conference room partition walls. And so on.
  • a shutdown signal is simultaneously sent to the transparent LED display screen and the dynamic scattering type liquid crystal display through a controller. That is, when the transparent LED display and the DS-LCD are both off, the transparent LED display and the DS-LCD are both in a transparent state at this time, so the multifunctional transparent display device can be used as transparent glass.
  • the present invention provides a multifunctional transparent display device and a control method thereof.
  • the multifunctional transparent display device includes a transparent LED display screen, and a dynamic scattering type liquid crystal provided on the light-emitting side of the transparent LED display screen.
  • different input signals are sent to the transparent LED display screen and the dynamic scattering type liquid crystal display through the controller, so that various functions of the transparent display device can be realized.
  • the start signal can be sent to eliminate the rough image and effectively improve the image display effect of the multi-functional transparent display device.

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Abstract

一种多功能透明显示设备及其控制方法，多功能透明显示设备包括一透明LED显示屏，设置在透明LED显示屏出光侧的动态散射型液晶显示器，以及用于控制透明LED显示屏以及动态散射型液晶显示器的控制器，通过控制器控制透明LED显示屏与动态散射型液晶显示器实现提升图像显示效果、透明显示、遮光以及透明四种功能。通过控制器对透明LED显示屏以及动态散射型液晶显示器发送不同的输入信号，可实现透明显示设备的多种功能。

Description

一种多功能透明显示设备及其控制方法 技术领域
本发明涉及显示设备领域，尤其涉及一种多功能透明显示设备及其控制方法。
背景技术
透明显示设备在我们日常生活中越来越常见，其在一些特殊领域有着绝对的优势。现有透明显示设备的结构通常如图1和图2所示，图1为侧发光LED显示屏，图2为正发光LED显示屏，所述透明显示设备中的LED不透光，除LED之外的部分是透明部分。如图3和图4所示，侧发光LED显示屏的透光度可达到(7.8-1.2)/7.8＝85％，正发光LED显示屏的透光度可达到(7.8-2)/7.8＝75％，这是其他透明技术很难达到的水准。
如图5所示，现有透明LED显示屏正视结构由很多颗LED按照一定矩阵排列，并且多块透明LED显示屏可以拼接成更大尺寸。
现有的LED显示屏还有一个很大的缺陷，由于LED尺寸比较大，在0.6mm以上(目前市场55”4K TFT-LCD像素尺寸在0.3mm左右)，并且受限制于透明度，成本，散热，可靠度等因素，LED间距很难做很接近，所以解析度难以做高。这就限制了LED显示屏在近距离观看方面的应用(例如电视，广告牌等)，由于LED之间存在的非有效显示区域导致消费者会看到严重画面颗粒感。
因此，现有技术还有待于改进和发展。
发明内容
鉴于上述现有技术的不足，本发明的目的在于提供一种多功能透明显示设备及其控制方法，旨在解决现有透明显示设备功能单一以及在近距离观看时存在画面颗粒感的问题。
本发明的技术方案如下：
一种多功能透明显示设备，其中，包括一透明LED显示屏，设置在所述透明LED显示屏出光侧的动态散射型液晶显示器，以及用于控制所述透明LED显示屏以及动态散射型液晶显示器的控制器；所述控制器与所述透明LED显示屏 以及动态散射型液晶显示器分别电连接，所述控制器用于控制所述透明LED显示屏与动态散射型液晶显示器实现提升图像显示效果、透明显示、遮光以及透明四种功能。
所述的多功能透明显示设备，其中，所述动态散射型液晶显示器与所述透明LED显示屏平行设置。
所述的多功能透明显示设备，其中，所述动态散射型液晶显示器与所述透明LED显示屏的垂直距离h＝(p/2-c*tan(b/2))/tan(a/2)，其中，所述p为透明LED显示屏中相邻像素之间的间距，所述c为动态散射型液晶显示器的厚度，所述a为所述透明LED显示屏中LED的出光角度，所述b为所述透明LED显示屏中LED发出的光经过所述动态散射型液晶显示器散射后的出光角度。
所述的多功能透明显示设备，其中，所述透明LED显示屏包括透明基板、均匀设置在所述透明基板上的若干LED元件。
所述的多功能透明显示设备，其中，所述透明LED显示屏还包括用于对所述LED元件进行封装的透明封装结构。
所述的多功能透明显示设备，其中，所述透明LED显示屏还包括与所述LED元件一一对应设置的匀光元件，所述匀光元件用于将LED元件发出的亮度不均匀的光处理为亮度均匀的光。
所述的多功能透明显示设备，其中，所述动态散射型液晶显示器包括两透明基片以及设置在所述两透明基片之间的液晶层，所述液晶层为掺杂离子型有机导电材料的液晶材料。
一种多功能透明显示设备的控制方法，其中，包括步骤：
当所述多功能透明显示设备需要提升图像显示效果时，则通过控制器向所述透明LED显示屏以及动态散射型液晶显示器同时发送开启信号。
所述多功能透明显示设备的控制方法，其中，通过控制所述DS-LCD与透明LED显示屏的垂直距离，使得所述透明显示设备具有较不同的图像显示效果，所述DS-LCD与透明LED显示屏的垂直距离h＝(p/2-c*tan(b/2))/tan(a/2)，其中，所述p为透明LED显示屏中相邻像素之间的间距，所述c为动态散射型液晶显示器的厚度，所述a为所述透明LED显示屏中LED的出光角度，所述b为所述透明LED显示屏中LED发出的光经过所述动态散射型液晶显示器散射后的出光 角度。
所述多功能透明显示设备的控制方法，其中，调整所述DS-LCD与透明LED显示屏的垂直距离，使得透明LED显示屏中相邻像素之间的间距为0，得到最佳图像显示效果。
所述多功能透明显示设备的控制方法，其中，还包括步骤：当所述多功能透明显示设备作为透明显示屏时，则通过控制器向所述透明LED显示屏以及动态散射型液晶显示器分别发送开启信号和关闭信号。
所述多功能透明显示设备的控制方法，其中，还包括步骤：当所述多功能透明显示设备作为遮光设备时，则通过控制器向所述透明LED显示屏以及动态散射型液晶显示器分别发送关闭信号和开启信号。
所述多功能透明显示设备的控制方法，其中，当透明LED显示屏关闭、DS-LCD开启时，此时透明LED显示屏为透明状态，DS-LCD为不透光状态，所述多功能透明显示设备可作为遮光设备使用。
所述多功能透明显示设备的控制方法，其中，还包括步骤：当所述多功能透明显示设备作为透明玻璃时，则通过控制器向所述透明LED显示屏以及动态散射型液晶显示器同时发送关闭信号。
所述多功能透明显示设备的控制方法，其中，当透明LED显示屏和DS-LCD均为关闭状态时，此时透明LED显示屏、DS-LCD均呈现为透明状态，所述多功能透明显示设备可作为透明玻璃使用。
有益效果：本发明提供的一种多功能透明显示设备及其控制方法，所述多功能透明显示设备包括一透明LED显示屏，设置在所述透明LED显示屏出光侧的动态散射型液晶显示器，以及用于控制所述透明LED显示屏以及动态散射型液晶显示器的控制器。本发明通过控制器对透明LED显示屏以及动态散射型液晶显示器发送不同的输入信号，可实现透明显示设备的多种功能，例如，通过控制器向所述透明LED显示屏以及动态散射型液晶显示器同时发送开启信号，可消除画面粗糙感，有效提升多功能透明显示设备的图像显示效果。
附图说明
图1为现有技术中一种侧发光LED显示屏的结构示意图。
图2为现有技术中一种正发光LED显示屏的结构示意图。
图3为现有技术中一种计算侧发光LED显示屏透光度较佳实施例的示意图。
图4为现有技术中一种计算正发光LED显示屏透光度较佳实施例的示意图。
图5为现有技术中透明LED显示屏拼接后的结构示意图。
图6为用户观看现有技术中透明LED显示屏时的示意图。
图7为本发明一种多功能透明显示设备较佳实施例的结构示意图。
图8为本发明动态散射型液晶显示器的工作原理示意图。
图9为本发明一种多功能透明显示设备的控制方法较佳实施例的流程图。
图10为透明LED显示屏发出的光在经过DS-LCD散射后的发光角度改变示意图。
图11为本发明多功能透明显示设备中的DS-LCD中显示图像的相邻像素之间的距离为0时的示意图。
图12为本发明多功能透明显示设备中的DS-LCD中显示图像的相邻像素之间的距离大于0时的示意图。
图13为本发明多功能透明显示设备中的DS-LCD中显示图像的相邻像素之间的距离为小于0时的示意图。
具体实施方式
本发明提供了一种多功能透明显示设备及其控制方法，为使本发明的目的、技术方案及效果更加清楚、明确，以下对本发明进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
由于现有透明LED显示屏受限于透明度、成本、散热可靠度等因素影响，故相邻LED之间的设置距离较大，而较大的LED间距会导致画面解析度较低，当近距离观看LED显示屏时会出现画面粗糙不连贯的现象，从而降低画面显示效果。
具体来讲，现有透明LED显示屏的结构如图6所示，图中A为相邻像素点间距，D为观看距离，s为观看视角，所述观看视角s的大小决定了视网膜上成像的大小，而视网膜上成像大小又决定了视觉清晰度，具体计算公式如下所示：
Figure PCTCN2019097322-appb-000001
设定d为具有正常视觉的人能够分辨物体空间两点间所形成的最小视角，由于市场上通用的LED显示屏受限于透明度、成本、散热、可靠度等要求，使得相邻像素点之间的距离A的数值不能为0，此时，当观看距离D足够小时，就使得观看视角s大于所述d，即人眼就可以分辨出像素之间的非显示区域，从而造成画面粗糙不连贯的感觉。
基于此，本发明提供了一种多功能透明显示设备，如图7所示，所述多功能透明显示设备包括一透明LED显示屏100，设置在所述透明LED显示屏100出光侧的动态散射型液晶显示器200，以及用于控制所述透明LED显示屏100以及动态散射型液晶显示器200的控制器300；所述控制器300与所述透明LED显示屏100以及动态散射型液晶显示器200分别电连接，所述控制器用于控制所述透明LED显示屏与动态散射型液晶显示器，实现提升图像显示效果、透明显示、遮光以及透明四种功能。
优选地，所述动态散射型液晶显示器与所述透明LED显示屏平行设置。
本发明通过在所述透明LED显示屏出光侧设置一动态散射型液晶显示器，并通过控制器向所述透明LED显示屏以及动态散射型液晶显示器同时发送开启信号，可消除画面粗糙感，从而有效提升多功能透明显示设备的图像显示效果。
作为其中一实施方式，本发明中的动态散射型液晶显示器(DS-LCD)包括两透明基片以及设置在两所述透明基片之间的液晶层，所述液晶层为掺杂离子型有机导电材料的液晶材料。
所述DS-LCD的电光特性属于电流效应，其具体工作原理如图8所示，所述DS-LCD在不加电状态，即关闭状态，所述液晶分子有序排列，液晶层呈透明状态，即透明LED显示屏发出的光能够按初始出光角度直接经过所述DS-LCD；当所述DS-LCD在加电状态时，所述液晶层内形成一种离子型有机导电材料的运动而产生的涡流状态，所述透明LED显示屏发出的光在经过所述DS-LCD时会发生强烈的散射，从而改变其出光角度。
作为其中一实施方式，所述透明LED显示屏包括透明基板、均匀设置在所述透明基板上的若干LED元件以及用于对所述LED元件进行封装的透明封装结构。
优选地，所述透明LED显示屏还包括与所述LED元件一一对应设置的匀光元件，所述匀光元件用于将LED元件发出的亮度不均匀的光处理为亮度均匀的光。
基于上述多功能透明显示设备，本发明还提供一种多功能透明显示设备的控制方法，如图9所示，其中，包括步骤：
S10、当所述多功能透明显示设备需要提升图像显示效果时，则通过控制器向所述透明LED显示屏以及动态散射型液晶显示器同时发送开启信号；
S20、当所述多功能透明显示设备作为透明显示屏时，则通过控制器向所述透明LED显示屏以及动态散射型液晶显示器分别发送开启信号和关闭信号；
S30、当所述多功能透明显示设备作为遮光设备时，则通过控制器向所述透明LED显示屏以及动态散射型液晶显示器分别发送关闭信号和开启信号；
S40、当所述多功能透明显示设备作为透明玻璃时，则通过控制器向所述透明LED显示屏以及动态散射型液晶显示器同时发送关闭信号。
作为其中一实施方式，当所述多功能透明显示设备需要提升图像显示效果时，则需通过控制器向所述透明LED显示屏以及动态散射型液晶显示器同时发送开启信号，此时透明LED显示屏发出的光在经过所述DS-LCD时会发生散射，其出光角度发生改变。如图10所示，所述动态散射型液晶显示器与所述透明LED显示屏平行设置，且所述动态散射型液晶显示器与所述透明LED显示屏的垂直距离为h，可根据实际情况对所述DS-LCD与透明LED显示屏的垂直距离进行设置，使所述透明显示设备具有较高的图像显示效果，即用户能看到清晰、无颗粒感的连贯画面。
优选地，如图10所示，所述动态散射型液晶显示器与所述透明LED显示屏的垂直距离h＝(p/2-c*tan(b/2))/tan(a/2)，其中，所述p为透明LED显示屏中相邻像素之间的间距，所述c为动态散射型液晶显示器的厚度，所述a为所述透明LED显示屏中LED的出光角度，所述b为所述透明LED显示屏中LED发出的光经过所述动态散射型液晶显示器散射后的出光角度，出光角度的改变可使得最终显示的图像相邻像素之间的间距发生改变，当所述图像相邻像素之间的间距变小时，也就减小了因为像素之间的间隔所造成的画面粗糙感，从而提升了图像显示效果。
进一步地，当所述动态散射型液晶显示器与所述透明LED显示屏的垂直距离如图11所示时，所述透明LED显示屏发出的光在经过DS-LCD散射后，出光角度发生了一定的改变，此时显示图像的相邻像素之间的距离为0，即为图像的最佳显示效果。
当所述动态散射型液晶显示器与所述透明LED显示屏的垂直距离如图12所示时，所述透明LED显示屏发出的光在经过DS-LCD散射后，出光角度也发生了一定的改变，此时显示图像的相邻像素之间的距离大于0，但是小于透明LED显示屏的原始相邻像素之间的距离，此时图像的显示效果相对单独的透明LED显示屏显示效果得到了一些改善，但未达到最佳。
当所述动态散射型液晶显示器与所述透明LED显示屏的垂直距离如图13所示时，所述透明LED显示屏发出的光在经过DS-LCD散射后，出光角度同样发生了一定的改变，此时显示图像的相邻像素之间的距离小于0，最终图像会出现混色现象，影响观看效果。
作为其中另一实施方式，当所述多功能透明显示设备作为透明显示屏时，则通过控制器向所述透明LED显示屏以及动态散射型液晶显示器分别发送开启信号和关闭信号。也就是说，当透明LED显示屏开启、DS-LCD关闭时，此时DS-LCD呈现为透明状态，透明LED显示屏显示的内容可以透过DS-LCD完整呈现在观看者面前，此时的多功能透明显示设备可作为透明显示屏使用。
作为其中另一实施方式，当所述多功能透明显示设备作为遮光设备时，则通过控制器向所述透明LED显示屏以及动态散射型液晶显示器分别发送关闭信号和开启信号。也就是说，当透明LED显示屏关闭、DS-LCD开启时，此时DS-LCD为不透光状态，所述多功能透明显示设备可作为遮光设备使用，可以应用在窗户、会议室隔墙等地方。
作为其中另一实施方式，当所述多功能透明显示设备作为透明玻璃时，则通过控制器向所述透明LED显示屏以及动态散射型液晶显示器同时发送关闭信号。也就是说，当透明LED显示屏和DS-LCD均为关闭状态时，此时透明LED显示屏、DS-LCD均呈现为透明状态，因此所述多功能透明显示设备可作为透明玻璃使用。
综上所述，本发明提供的一种多功能透明显示设备及其控制方法，所述多功 能透明显示设备包括一透明LED显示屏，设置在所述透明LED显示屏出光侧的动态散射型液晶显示器，以及用于控制所述透明LED显示屏以及动态散射型液晶显示器输入信号的控制器。本发明通过控制器对透明LED显示屏以及动态散射型液晶显示器发送不同的输入信号，可实现透明显示设备的多种功能，例如，通过控制器向所述透明LED显示屏以及动态散射型液晶显示器同时发送开启信号，可消除画面粗糙感，有效提升多功能透明显示设备的图像显示效果。
应当理解的是，本发明的应用不限于上述的举例，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，所有这些改进和变换都应属于本发明所附权利要求的保护范围。

Claims (15)

  1. 一种多功能透明显示设备，其特征在于，包括一透明LED显示屏，设置在所述透明LED显示屏出光侧的动态散射型液晶显示器，以及用于控制所述透明LED显示屏以及动态散射型液晶显示器的控制器；所述控制器与所述透明LED显示屏以及动态散射型液晶显示器分别电连接，所述控制器用于控制所述透明LED显示屏与动态散射型液晶显示器实现提升图像显示效果、透明显示、遮光以及透明四种功能。
  2. 根据权利要求1所述的多功能透明显示设备，其特征在于，所述动态散射型液晶显示器与所述透明LED显示屏平行设置。
  3. 根据权利要求2所述的多功能透明显示设备，其特征在于，所述动态散射型液晶显示器与所述透明LED显示屏的垂直距离h＝(p/2-c*tan(b/2))/tan(a/2)，其中，所述p为透明LED显示屏中相邻像素之间的间距，所述c为动态散射型液晶显示器的厚度，所述a为所述透明LED显示屏中LED的出光角度，所述b为所述透明LED显示屏中LED发出的光经过所述动态散射型液晶显示器散射后的出光角度。
  4. 根据权利要求1所述的多功能透明显示设备，其特征在于，所述透明LED显示屏包括透明基板、均匀设置在所述透明基板上的若干LED元件。
  5. 根据权利要求4所述的多功能透明显示设备，其特征在于，所述透明LED显示屏还包括用于对所述LED元件进行封装的透明封装结构。
  6. 根据权利要求4所述的多功能透明显示设备，其特征在于，所述透明LED显示屏还包括与所述LED元件一一对应设置的匀光元件，所述匀光元件用于将LED元件发出的亮度不均匀的光处理为亮度均匀的光。
  7. 根据权利要求1所述的多功能透明显示设备，其特征在于，所述动态散射型液晶显示器包括两透明基片以及设置在所述两透明基片之间的液晶层，所述液晶层为掺杂离子型有机导电材料的液晶材料。
  8. 一种如权利要求1-6任一所述多功能透明显示设备的控制方法，其特征在于，包括步骤：
    当所述多功能透明显示设备需要提升图像显示效果时，则通过控制器向所述透明LED显示屏以及动态散射型液晶显示器同时发送开启信号。
  9. 根据权利要求8所述多功能透明显示设备的控制方法，其特征在于，通 过控制所述DS-LCD与透明LED显示屏的垂直距离，使得所述透明显示设备具有较不同的图像显示效果，所述DS-LCD与透明LED显示屏的垂直距离h＝(p/2-c*tan(b/2))/tan(a/2)，其中，所述p为透明LED显示屏中相邻像素之间的间距，所述c为动态散射型液晶显示器的厚度，所述a为所述透明LED显示屏中LED的出光角度，所述b为所述透明LED显示屏中LED发出的光经过所述动态散射型液晶显示器散射后的出光角度。
  10. 根据权利要求9所述多功能透明显示设备的控制方法，其特征在于，调整所述DS-LCD与透明LED显示屏的垂直距离，使得透明LED显示屏中相邻像素之间的间距为0，得到最佳图像显示效果。
  11. 根据权利要求8所述多功能透明显示设备的控制方法，其特征在于，还包括步骤：
    当所述多功能透明显示设备作为透明显示屏时，则通过控制器向所述透明LED显示屏以及动态散射型液晶显示器分别发送开启信号和关闭信号。
  12. 根据权利要求8所述多功能透明显示设备的控制方法，其特征在于，还包括步骤：
    当所述多功能透明显示设备作为遮光设备时，则通过控制器向所述透明LED显示屏以及动态散射型液晶显示器分别发送关闭信号和开启信号。
  13. 根据权利要求12所述多功能透明显示设备的控制方法，其特征在于，当透明LED显示屏关闭、DS-LCD开启时，此时透明LED显示屏为透明状态，DS-LCD为不透光状态，所述多功能透明显示设备可作为遮光设备使用。
  14. 根据权利要求8所述多功能透明显示设备的控制方法，其特征在于，还包括步骤：
    当所述多功能透明显示设备作为透明玻璃时，则通过控制器向所述透明LED显示屏以及动态散射型液晶显示器同时发送关闭信号。
  15. 根据权利要求14所述多功能透明显示设备的控制方法，其特征在于，当透明LED显示屏和DS-LCD均为关闭状态时，此时透明LED显示屏、DS-LCD均呈现为透明状态，所述多功能透明显示设备可作为透明玻璃使用。
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