CN103676257A - Transparent liquid crystal display screen capable of regulating transparency - Google Patents
Transparent liquid crystal display screen capable of regulating transparency Download PDFInfo
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- CN103676257A CN103676257A CN201410003419.2A CN201410003419A CN103676257A CN 103676257 A CN103676257 A CN 103676257A CN 201410003419 A CN201410003419 A CN 201410003419A CN 103676257 A CN103676257 A CN 103676257A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 87
- 230000001105 regulatory effect Effects 0.000 title abstract 4
- 238000002834 transmittance Methods 0.000 claims description 21
- 239000012528 membrane Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000013329 compounding Methods 0.000 description 1
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Abstract
The invention discloses a transparent liquid crystal display screen capable of regulating the transparency, and belongs to the field of the electronic display screen. The transparent liquid crystal display screen capable of regulating the transparency is characterized by consisting of a transparent liquid crystal display screen, an electronic control dimming film and a screen controller, wherein the screen controller receives an image to be displayed from a PC (personal computer); the image to be displayed is processed by a built-in transparent liquid crystal display screen control module to drive the screen of the transparent liquid crystal display screen; meanwhile, a built-in electronic control dimming film control module is used for receiving the transparency control signal of the electronic control dimming film from the PC; the transparency control signal is processed and amplified to control the transparency of the electronic control dimming film to regulate the transparency of the screen of the transparent liquid crystal display screen; when the left half part of the liquid crystal film is under the non-transparent state and the right half part is under the all-transparent state, the left half part of the screen can display an object image; an object entity behind the screen is perspective by the right half part. According to the transparent liquid crystal display screen capable of regulating the transparency, which is disclosed by the invention, the object entity behind the screen can be perspective on the premise of guaranteeing the screen display effect, and therefore the transparent liquid crystal display screen is suitable for display on a booth.
Description
Technical Field
The invention relates to the field of electronic display screens, in particular to a transparency-adjustable transparent liquid crystal display screen which is composed of a transparent liquid crystal display screen and an electric control dimming film. The display screen has the characteristics that the display screen can display objects behind the screen and the display effect of the traditional liquid crystal display screen is excellent.
Background
The transparent liquid crystal display screen is a novel liquid crystal display screen which utilizes a visible light source in the environment to replace a backlight plate of the traditional liquid crystal display screen. Based on the characteristics that transparent liquid crystal display can utilize ambient light to show, often be applied to stand, showcase in order to demonstrate the showpiece of placing behind transparent liquid crystal display.
The electrically controlled light modulating material is prepared by compounding a liquid crystal film and an electrode plate between two layers of light transmitting materials, and controlling the voltage at two ends of the electrode plate to make the electrode plate in various transition states from full transparency to non-transparency. Based on the characteristic that the transparency of the dimming material is adjustable, the dimming material can be used for privacy protection, projection imaging, automobile light isolation and the like.
The utility model 'virtual touch show window' of application No. 201220178991.9 discloses a show cabinet using a transparent liquid crystal display as a show window. However, since the transparent liquid crystal display does not have a backlight plate, the display is displayed only by the diffuse reflection of the white background at the inner side or the rear part of the display cabinet, and the uniform plane backlight effect cannot be provided, so that the picture brightness and the color saturation are greatly different from those of the traditional liquid crystal display.
The utility model discloses an "membrane intelligence window advertisement projection system adjusts luminance" of 201120144384.6 discloses a projection system who utilizes automatically controlled membrane of adjusting luminance as the projection curtain. But because adopt projection display's mode, must guarantee that automatically controlled membrane of adjusting luminance is in opaque state when showing the image, can't show automatically controlled membrane of adjusting luminance back article this moment, show the interactivity not strong.
The transparent liquid crystal display screen which combines the transparent display screen and the electric control dimming film and is adjustable in transparency can simultaneously take into account the good interactive display characteristic of the transparent display screen and the good display characteristic of the traditional liquid crystal display screen, so that better user experience is provided.
Disclosure of Invention
The invention aims to provide a novel transparent liquid crystal display screen with adjustable transparency, which has the characteristics that a transparent liquid crystal display screen can display objects behind the screen and the traditional liquid crystal display screen has excellent display effect.
The present invention is characterized by comprising: the device comprises a transparent liquid crystal display screen, an electric control dimming film unit and a screen controller; wherein:
the screen controller is provided with: transparent liquid crystal display control module, automatically controlled membrane unit control module and power module of adjusting luminance, wherein:
transparent liquid crystal display control module is equipped with: image input interface module, image signal processing module and display screen drive signal output module, wherein:
the image input interface module is provided with: a signal input terminal for the image to be displayed, which inputs the image signal to be displayed outputted from the PC,
an image signal processing module provided with: an image signal input terminal for converting the image signal input from the image input interface module into a driving control signal capable of driving the transparent liquid crystal display screen,
display screen drive signal output module is equipped with: a driving control signal input end for processing the driving control signal input from the image signal processing module into a display screen driving signal, outputting the display screen driving signal to a real-time display image signal input end of the transparent liquid crystal display screen, and displaying an image to be displayed on the transparent liquid crystal display screen,
the automatically controlled membrane unit control module of adjusting luminance is equipped with: control signal input interface module, control signal processing module and automatically controlled membrane unit transmittance drive signal output module of adjusting luminance, wherein:
the control signal input interface module is provided with: an input end of a control signal output by a PC machine for adjusting the transmittance of the electric control light adjusting film unit,
the control signal processing module is provided with: a control signal input end for processing the transparency control signal of the electric control light adjusting film unit input from the control signal input interface module into a transmittance driving control signal of the electric control light adjusting film unit,
automatically controlled membrane unit transmittance drive signal output module of adjusting luminance is equipped with: a transmittance driving signal input end for controlling the transmittance of the electric control light adjusting film unit, which processes the transmittance driving control signal of the electric control light adjusting film unit input from the control signal processing module into the driving signal of the electric control light adjusting film unit and outputs the driving signal to the control electrode of the electric control light adjusting film unit to realize the control of the transmittance level,
and the power supply module is a 12V direct-current power supply and respectively supplies power to the transparent liquid crystal display control module and the electric control dimming film unit control module.
In the screen controller, the image input interface module adopts a VGA image interface module, the image signal processing module adopts an RTD2120L + RTD2025L microprocessor module, and the display screen driving signal output module adopts an LVDS liquid crystal display screen interface module.
In the electric control light modulation film unit control module, the control signal input interface module is a USB interface, the control signal processing module is an ATMEGA328 microprocessor chip, and the electric control light modulation film unit transmittance driving signal output module is a PWM signal modulation module and a boosting module.
In automatically controlled membrane unit of adjusting luminance, the automatically controlled membrane unit of adjusting luminance of half left side can be in light tight state alone for the image of auxiliary display object, and the automatically controlled membrane unit of adjusting luminance of half right side can be in full light transmission state alone, is used for perspective out the object material object behind the transparent liquid crystal display screen.
Compared with the existing electronic display screen, the invention has the following characteristics:
the invention can control the electric control light adjusting film unit to present transparent state, and the user can see the space at the back of the display screen through the transparent liquid crystal display screen.
The invention can control the electric control light adjusting film unit to present an opaque state, so that the transparent liquid crystal display screen presents the same display characteristic as the traditional liquid crystal display screen.
The invention can respectively control each electric control light adjusting film in the electric control light adjusting film unit to be in different opaque states, so that a user can see the space at the rear part of the screen through the display screen, and meanwhile, the part of a display picture can be ensured to show excellent display characteristics. This characteristic provides the bandwagon effect and the user experience that current electronic display screen can't provide.
Drawings
Fig. 1 is a schematic structural view of a transparent liquid crystal display screen with adjustable transparency according to an embodiment of the present invention, in which: the display screen comprises a transparent liquid crystal display screen 1, an electric control dimming film unit 2 and a screen controller 3.
Fig. 2 is a schematic structural diagram of a screen controller of a transparent liquid crystal display screen with adjustable transparency according to an embodiment of the present invention, in which: 1 is transparent liquid crystal display control module, includes: the device comprises an image input interface module 11, an image signal processing module 12 and a display screen driving signal output module 13; 2 is a power supply module; 3 is automatically controlled membrane unit control module of adjusting luminance, includes: a control signal input interface module 31, a control signal processing module 32, and an electric control light adjusting film unit transparency driving signal output module 33.
Fig. 3 is a schematic diagram of different working states of a transparent liquid crystal display screen with adjustable transparency according to an embodiment of the invention. The partial diagram 3-1 shows the opaque state, the partial diagram 3-2 shows the fully transparent state, and the partial diagram 3-3 shows the partially transparent state. In the figure: 1 is a transparent liquid crystal display screen, 2 is an electric control light adjusting film unit, and 313, 323 and 333 are rear objects of the embodiment.
Detailed Description
A transparent liquid crystal display screen capable of adjusting transparency comprises a transparent liquid crystal display screen, an electric control dimming film unit and a screen controller. Wherein,
the transparent liquid crystal display is positioned at the forefront of the user when the user is looking at the display screen. The transparent liquid crystal display screen can display through the image signal sent by the receiving screen controller. The transparent liquid crystal display screen is in a transparent state while displaying images, and a user can see the space behind the display screen through the display screen.
And the electric control light adjusting film unit is arranged at the rear part of the transparent liquid crystal display screen when a user is looking at the display screen. The electric control light adjusting film unit can be tightly attached to the transparent liquid crystal display screen and also can keep a certain distance with the transparent liquid crystal display screen. The electric control light adjusting film unit can be a whole electric control light adjusting film or an electric control light adjusting film group consisting of a plurality of electric control light adjusting films. The electric control light adjusting film unit can receive a driving signal sent by the screen controller and presents different levels of opacity.
The screen controller consists of a transparent liquid crystal display screen control module, an electric control dimming film unit control module and a power module.
The transparent liquid crystal display screen control module in the screen controller comprises an image input interface module, an image signal processing module and a display screen driving signal output module. The transparent liquid crystal display control module receives image signals through the image signal input interface module, converts the input image signals into driving signals capable of driving the transparent liquid crystal display through the image signal processing module, and outputs the driving signals to the transparent liquid crystal display through the display screen driving signal output module to finally realize the display of images.
The control module of the electric control light adjusting film unit in the screen controller comprises a control signal input interface module, a control signal processing module and a transparency driving signal output module of the electric control light adjusting film unit. The control signal of adjusting the transparency of the electric control light adjusting film unit sent by the upper computer is received by the electric control light adjusting film unit control module through the control signal input interface module, the control signal of inputting and adjusting the transparency of the electric control light adjusting film unit is converted into a driving signal of adjusting the transparency of the electric control light adjusting film unit through the control signal processing module, the driving signal of adjusting the transparency of the electric control light adjusting film unit is output to the electric control light adjusting film unit through the electric control light adjusting film unit transparency driving signal output module, and finally the control of the transparency level of the electric control light adjusting film unit is realized. The electric control light modulation film unit control module can also fixedly output a drive signal with a certain rule which can directly drive the electric control light modulation film unit, so that the control of the opacity level of the electric control light modulation film unit is realized.
And the power module in the screen controller provides power for the transparent liquid crystal display control module and the electric control dimming film unit control module in the screen controller.
The invention is further described with reference to the following figures and detailed description.
The following examples are transparent liquid crystal display screens with adjustable transparency made according to the present invention. The present disclosure is not limited to the specific designs and application scenarios set forth in the examples.
The structure of the embodiment is schematically shown in figure 1. In fig. 1, the display device comprises a transparent liquid crystal display screen 1, an electrically controlled dimming film unit 2 and a screen controller 3.
The transparent liquid crystal display 1 receives the image signal sent by the screen controller 3 to display the image. The user can see the show article behind the screen through transparent liquid crystal display when transparent liquid crystal display shows the image.
The electric control light adjusting film unit 2 is clung to the rear part of the transparent liquid crystal display screen 1. The electric control light modulation film unit 2 is formed by splicing a left electric control light modulation film and a right electric control light modulation film. The electric control dimming film unit 2 can present transparency states of different levels by receiving an electric control dimming film driving signal sent by the screen controller 3.
The screen controller 3 is schematically shown in fig. 2. The screen controller 3 is composed of a transparent liquid crystal display control module 31, a power module 32 and an electric control light modulation film unit control module 33.
In this embodiment, the image input interface module 11 of the transparent lcd control module 1 is a VGA image interface module, the image signal processing module 12 is a RTD2120L + RTD2025L microprocessor module, and the display driving signal output module 13 is an LVDS lcd interface module. The power module 2 is a 12V direct current power supply and supplies power to the transparent liquid crystal display screen control module 1 and the electric control dimming film unit control module 3 in the screen controller. The control signal input interface module 31 of the electric control light adjusting film unit control module 3 is a USB interface module, the control signal processing module 32 is an Atmega328 microprocessor chip module, and the electric control light adjusting film unit transparency driving signal output module 33 is a PWM signal modulation and boosting module.
In this embodiment, the PC outputs an image signal to the image input interface module 11 through the VGA port, the image signal converts the input image signal into an LVDS signal through the image signal processing module 12, the LVDS signal outputs a driving signal to the transparent liquid crystal display through the display screen driving signal output module 13, and finally, the picture is displayed on the transparent liquid crystal display.
In this embodiment, the PC outputs the control signal of the electronic control dimming film unit to the control signal input interface module 31 through the USB port, the control signal is converted into a PWM signal with a corresponding duty ratio through the control signal processing module 32, the PWM signal modulates the 12V dc power supply signal through the transparency driving signal output module 33 of the electronic control dimming film unit, the modulated power supply signal is boosted to 65V to form the driving signal of the electronic control dimming film unit, and the electronic control dimming film unit is driven to exhibit different opacities.
Fig. 3 is a schematic diagram of the working state of the present embodiment. In this embodiment, the user can simultaneously cooperate to send two signals to the screen controller 3 through the PC, so that the transparent lcd screen with adjustable transparency can show a state that not only can ensure an excellent image display effect, but also can interactively show the rear space of the display screen. In the schematic diagram 3, the transparent liquid crystal display panel 1 and the electronically controlled dimming film unit 2 of the present embodiment are separately illustrated for clearly illustrating the light propagation path, but in the practical design of the embodiment, the electronically controlled dimming film unit 2 is closely attached to the rear portion of the transparent liquid crystal display panel 1. Fig. 3-1 shows the embodiment operating in an opaque state, fig. 3-2 shows the embodiment operating in a fully transparent state, and fig. 3-3 shows the embodiment operating in a partially transparent state.
When the present embodiment operates in the opaque state, the operation state is as shown in sub-fig. 3-1. At this time, the left and right electrically controlled dimming films in the electrically controlled dimming film unit 312 are both in an opaque state. The light reflected by the object 313 behind the embodiment cannot pass through the electrically controlled dimming film unit 312, so that the user cannot see the object behind the embodiment. Because automatically controlled membrane unit 312 of adjusting luminance all is in opaque state, embodiment rear light source provides even plane backlight effect for transparent liquid crystal display 1 after automatically controlled membrane unit 312 of adjusting luminance refracts, has guaranteed transparent liquid crystal display 1's picture luminance and color saturation.
When the embodiment works in the full transparent state, the working state is as shown in sub-figure 3-2. At this time, the left and right electrically controlled dimming films in the electrically controlled dimming film unit 322 are all in a fully transparent state. In the embodiment, the light reflected by the object 323 can pass through the electrically controlled dimming film unit 322, and at this time, the embodiment can realize all functions of the existing transparent liquid crystal display.
When the present embodiment operates in the partially transparent state, the operation state is as shown in fig. 3-3. At this time, the left electric control dimming film of the electric control dimming film unit 332 is in an opaque state, and the right electric control dimming film is in a fully transparent state. The transparent liquid crystal display screen can display images by using the left half part, and a user can see the rear object of the embodiment through the right half part.
The user can customize various display modes to meet different display requirements, and the user experience is excellent.
Claims (4)
1. A transparent liquid crystal display screen with adjustable transmittance, comprising: the device comprises a transparent liquid crystal display screen, an electric control dimming film unit and a screen controller; wherein:
a transparent liquid crystal display screen which is positioned right in front of the display screen when the user is looking at the display screen and is provided with a real-time display image signal input end,
the electric control light adjusting film unit is a liquid crystal film which is clamped between two layers of light transmitting materials and has the transmittance controlled by a control electrode, is tightly attached to the light transmitting surface on the back surface of the transparent liquid crystal display screen, and has the transmittance changed from full light transmission to light transmission under the control of control voltage,
the screen controller is provided with: transparent liquid crystal display control module, automatically controlled membrane unit control module and power module of adjusting luminance, wherein:
transparent liquid crystal display control module is equipped with: image input interface module, image signal processing module and display screen drive signal output module, wherein:
the image input interface module is provided with: a signal input terminal for the image to be displayed, which inputs the image signal to be displayed outputted from the PC,
an image signal processing module provided with: an image signal input terminal for converting the image signal input from the image input interface module into a driving control signal capable of driving the transparent liquid crystal display screen,
display screen drive signal output module is equipped with: a driving control signal input end for processing the driving control signal input from the image signal processing module into a display screen driving signal, outputting the display screen driving signal to a real-time display image signal input end of the transparent liquid crystal display screen, and displaying an image to be displayed on the transparent liquid crystal display screen,
the automatically controlled membrane unit control module of adjusting luminance is equipped with: control signal input interface module, control signal processing module and automatically controlled membrane unit transmittance drive signal output module of adjusting luminance, wherein:
the control signal input interface module is provided with: the input end of a control signal output by the PC machine for adjusting the transmittance of the electric control light adjusting film unit,
the control signal processing module is provided with: a control signal input end for processing the transparency control signal of the electric control light adjusting film unit input from the control signal input interface module into a transmittance driving control signal of the electric control light adjusting film unit,
automatically controlled membrane unit transmittance drive signal output module of adjusting luminance is equipped with: a transmittance driving signal input end for controlling the transmittance of the electric control light adjusting film unit, which processes the transmittance driving control signal of the electric control light adjusting film unit input from the control signal processing module into the driving signal of the electric control light adjusting film unit and outputs the driving signal to the control electrode of the electric control light adjusting film unit to realize the control of the transmittance level,
and the power supply module is a 12V direct-current power supply and respectively supplies power to the transparent liquid crystal display control module and the electric control dimming film unit control module.
2. The transparent LCD screen of claim 1, wherein the image input interface module is VGA image interface module, the image signal processing module is RTD2120L + RTD2025L microprocessor module, and the display screen driving signal output module is LVDS LCD interface module.
3. The transparent LCD screen of claim 1, wherein in the control module of the electro-controlled dimming film unit, the control signal input interface module is a USB interface, the control signal processing module is an ATMEGA328 microprocessor chip, and the electro-controlled dimming film unit transmittance driving signal output module is a PWM signal modulation module and a boost module.
4. The transparent lcd screen of claim 1, wherein in the electronically controlled dimming film unit, the left half of the electronically controlled dimming film unit can be individually in a non-transparent state for assisting in displaying the image of the object, and the right half of the electronically controlled dimming film unit is individually in a fully transparent state for allowing the object behind the transparent lcd screen to be seen through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410003419.2A CN103676257B (en) | 2014-01-03 | 2014-01-03 | A kind of transparent liquid crystal display curtain of scalable transparency |
Applications Claiming Priority (1)
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| CN201410003419.2A CN103676257B (en) | 2014-01-03 | 2014-01-03 | A kind of transparent liquid crystal display curtain of scalable transparency |
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| CN103676257B CN103676257B (en) | 2016-08-31 |
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| JP7481339B2 (en) | 2020-05-21 | 2024-05-10 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | Display system and display control method |
| CN112802428A (en) * | 2020-12-30 | 2021-05-14 | 陈戟 | Adjustable display system and electronic equipment |
| CN113450669A (en) * | 2021-07-12 | 2021-09-28 | 宁波视睿迪光电有限公司 | Transparent mirror display device and implementation method thereof |
| CN114220357A (en) * | 2022-02-10 | 2022-03-22 | 珠海华萃科技有限公司 | LED display screen, display and control method |
| CN114220357B (en) * | 2022-02-10 | 2023-08-18 | 珠海华萃科技有限公司 | LED display screen, display and control method |
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