CN110441948A - One kind can penetrate liquid crystal display device - Google Patents
One kind can penetrate liquid crystal display device Download PDFInfo
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- CN110441948A CN110441948A CN201910888832.4A CN201910888832A CN110441948A CN 110441948 A CN110441948 A CN 110441948A CN 201910888832 A CN201910888832 A CN 201910888832A CN 110441948 A CN110441948 A CN 110441948A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 226
- 229920000642 polymer Polymers 0.000 claims description 14
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 4
- 239000004815 dispersion polymer Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 210000004027 cell Anatomy 0.000 description 20
- 210000002858 crystal cell Anatomy 0.000 description 13
- 239000000047 product Substances 0.000 description 11
- 239000010408 film Substances 0.000 description 6
- 239000012788 optical film Substances 0.000 description 6
- 239000004983 Polymer Dispersed Liquid Crystal Substances 0.000 description 5
- 230000010287 polarization Effects 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000005686 electrostatic field Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 mobile phones Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- 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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses one kind can penetrate liquid crystal display device, it is characterised in that: including the transparent liquid crystal display module for showing electronic graph-text information and the backlight control mould group for controlling backlight；The transparent liquid crystal display module and the movable connection of backlight control mould group, the activity of backlight control mould group are extremely corresponding or movable to separate with transparence display mould group back with transparent liquid crystal display module back；The light that the backlight module generates at least partly is projected in transparent liquid crystal display module；The transparent liquid crystal display module and backlight control Mo Zu connect control mainboard respectively.Originally liquid crystal display device, which can be penetrated, makes user both and can watch graph text information in transparent liquid crystal display module, also can watch the product of transparent liquid crystal display module behind.Originally can penetrate liquid crystal display device have it is simple and reasonable, it is easy to use, different occasions are applicable to, the features such as versatility and practical, use scope is wide.
Description
Technical Field
The invention relates to the field of display devices, in particular to a penetrable liquid crystal display device.
Background
The traditional liquid crystal display screen comprises a liquid crystal display module, wherein the liquid crystal display module can not emit light, and people can see various black-white or color image-text information on the liquid crystal display screen because a backlight module is arranged in the liquid crystal display screen, the backlight module and the liquid crystal display module jointly form the liquid crystal display screen, the backlight source is a light source generated by a backlight module control system positioned behind the liquid crystal display module, and the light emitting effect of the backlight source directly influences the visual effect of the image-text information on the liquid crystal display module. Specifically, the backlight source has a light intensity of about 300cd/m after passing through the liquid crystal display module2The liquid crystal display screen is suitable for most of environments, but when the ambient light ratio is high, for example, when people watch electronic products with liquid crystal display screens such as mobile phones, tablet computers, notebooks and the like under sunlight, because the contrast ratio of the backlight source in the liquid crystal display screen is relatively low, users can hardly see graphic and text information on the liquid crystal display screen under sunlight, and the electronic products with the liquid crystal display screens are very inconvenient to use outdoors.
In addition, for satisfying high-end product, the show of valuables etc., display, exhibition etc., a transparent display case appears in the market, this transparent display case is a transparent liquid crystal display module assembly setting on a browse the box, generally design into white in the browse box, carry out effective scattering with the light in the browse box, thereby make effectual backlight effect, the viewer just can watch the picture and text information on the transparent liquid crystal display module assembly simultaneously and leave the product behind the transparent liquid crystal display module assembly like this, can be in order to see the product of browsing the incasement and depositing, article etc.. The disadvantages of such transparent display cases are: 1. when the transparent display box is used, the transparent display state or the non-transparent display state can not be switched at will, the transparent display box can realize transparent display only when the color of a display picture approaches white, the transparent display can not be realized when the color of the display picture approaches black, and the non-transparent display can not be realized when the color of the display picture is turned to white; 2. the transparent display box can not be separated from the browsing box body, the browsing box body needs to occupy a larger space position in actual use, and is inconvenient to move, so that the transparent display box is difficult to popularize.
Therefore, further improvements are needed.
Disclosure of Invention
The present invention is directed to overcome the above-mentioned deficiencies of the prior art, and provides a transparent liquid crystal display device, which enables a user to view not only the graphic information on the transparent liquid crystal display module, but also the product behind the transparent liquid crystal display module; in addition, the penetrable liquid crystal display device is simple and reasonable in structure, convenient to use, applicable to different occasions, high in universality and practicability and wide in application range.
The purpose of the invention is realized as follows:
a penetrable liquid crystal display device, comprising: the backlight control module is used for controlling the backlight source; the transparent liquid crystal display module is movably connected with the backlight control module, and the backlight control module moves to correspond to the back of the transparent liquid crystal display module or moves to be away from the back of the transparent display module; at least part of light rays generated by the backlight module are projected to the transparent liquid crystal display module; the transparent liquid crystal display module and the backlight control module are respectively connected with the control mainboard.
The transparent liquid crystal display module is movably connected with the backlight control module through a hinge connecting piece.
And a shading strip for shading the gap between the transparent liquid crystal display module and the backlight control module is arranged between the transparent liquid crystal display module and the backlight control module.
The transparent liquid crystal display device also comprises a switching module for switching a transparent working mode or an opaque working mode; the transparent liquid crystal display module, the backlight control module or the switching module is provided with an electric control switch for independently controlling the switching module; the switching module is movably connected between the transparent liquid crystal display module and the backlight control module.
The switching module is composed of more than one integral box of a polymer network liquid crystal box, a polymer dispersion liquid crystal box, a cholesteric liquid crystal box, a liquid crystal display box and a dye-doped liquid crystal display box.
The transparent liquid crystal display module is movably connected with the switching module through a corresponding hinge connecting piece; the switching module is movably connected with the backlight control module through a corresponding hinge connecting piece.
The backlight control module is provided with backlight sources with different colors; and a light source control switch for controlling the backlight control module to be switched on is arranged on the transparent liquid crystal display module or the backlight control module.
In order to uniformly project light on the transparent liquid crystal display module, at least the following scheme is adopted:
in the first scheme, a light projecting assembly is arranged on the backlight control module, and the light projecting assembly comprises a light projecting lamp, a double-spherical condenser lens, a front lamp fresnel lens, a center fresnel lens, an eccentric fresnel lens and a light projecting head which are sequentially arranged along a light propagation path.
A reflecting part for uniformly projecting the light rays generated by the backlight control module on the transparent liquid crystal display module is arranged between the transparent liquid crystal display module and the backlight control module; the reflecting surface used for reflecting light on the reflecting component is a plane or an arc surface.
The invention has the beneficial effects that:
because the backlight control module is completely independent from the traditional crystal display device, the backlight control module can provide the required backlight outside the transparent liquid crystal display module; the backlight source supply condition of the transparent liquid crystal display module can be changed at any time through a light source control switch on the backlight control module; especially when the penetrable liquid crystal display device is used under the condition of sufficient outdoor light, the transparent liquid crystal display module is opened from the backlight control module through the connecting mechanism, the use angle of the transparent liquid crystal display module is adjusted, and the light with sufficient external is used as the backlight source of the transparent liquid crystal display module, so that the image and text contents on the transparent liquid crystal display module can be clearly browsed under the sunlight; on the other hand, the backlight control module does not need to work (does not need to provide a light source) under the condition of sufficient external light, so that the energy consumption can be greatly reduced.
In addition, through set up the switching module that can be used to switch transparent mode or nontransparent mode between transparent liquid crystal display module assembly and the control module group that is shaded, make the transparent liquid crystal display module assembly whether transparent of user's control according to the use needs to avoid the object behind the transparent liquid crystal display module assembly to influence the user and browse the picture and text information on the transparent liquid crystal display module assembly, effectively promote user's use embodiment.
Drawings
FIG. 1 is a schematic diagram illustrating an expanded state of a transparent LCD device according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a first embodiment of a transparent LCD device according to the present invention in a closed state;
FIG. 3 is an enlarged schematic view at A in FIG. 1;
FIG. 4 is a schematic view illustrating light projection of a backlight control module according to a first embodiment of the present invention;
FIG. 5 is a schematic view illustrating the transmissive LCD device of the first embodiment of the present invention in a situation of insufficient ambient light;
FIG. 6 is a schematic view illustrating the use of the transparent LCD device of the first embodiment of the present invention under a condition of sufficient ambient light;
FIG. 7 is a partial cross-sectional view of a transparent LCD module according to a first embodiment of the present invention;
FIG. 8 is a partial cross-sectional view of a backlight control module according to a first embodiment of the present invention;
FIG. 9 is a schematic view of a second embodiment of a penetrable LCD device in an expanded state;
FIG. 10 is a schematic view of a third embodiment of a transflective LCD device according to the present invention in an expanded state I;
FIG. 11 is a schematic diagram illustrating a second expanded state of the penetrable liquid crystal display device in accordance with the third embodiment of the present invention;
FIG. 12 is a schematic view of a third embodiment of the present invention showing the transmissive LCD device in a condition of insufficient ambient light;
FIG. 13 is a schematic view of a third embodiment of the transparent LCD device in accordance with the present invention in a condition of sufficient ambient light;
FIG. 14 is a partial cross-sectional view of a hazy state of a polymer network liquid crystal cell according to a third embodiment of the present invention;
FIG. 15 is a partial cross-sectional view of a transparent state of a polymer network liquid crystal cell according to a third embodiment of the present invention;
FIG. 16 is a partial cross-sectional view of a transparent state of a polymer dispersed liquid crystal cell according to a third embodiment of the present invention;
FIG. 17 is a partial cross-sectional view of a hazy state of a polymer dispersed liquid crystal cell according to a third embodiment of the invention;
FIG. 18 is a partial cross sectional view of a liquid crystal display cell in a third embodiment of the present invention;
FIG. 19 is a partial cross sectional view of a dye-doped liquid crystal display cell in a transparent state according to a third embodiment of the present invention;
FIG. 20 is a partial cross-sectional view of a dye-doped liquid crystal cell in a third embodiment of the present invention showing a foggy state.
Wherein in the figure: 1 is a transparent liquid crystal display module; 2 is a backlight control module; 3 is a connecting mechanism; 4 is a switching module; 5 is a shading strip; 6 is a reflecting member; 7 is a spherical reflector; 8 is a projection lamp; 9 is an optical spherical condenser; 10 is a Fresnel mirror in front of the lamp; 11 is a positive center Fresnel mirror; 12 is an eccentric Fresnel mirror; 13 is a projection head; 100 is a real object behind the transparent liquid crystal display module; 101 is the graphic information displayed on the transparent liquid crystal display module; 000 is the sun; 001 is backlight light; 002 is natural light ray.
Detailed Description
The invention is further described with reference to the following figures and examples.
First embodiment
Referring to fig. 1-8, the transparent liquid crystal display device includes a transparent liquid crystal display module 1 for displaying electronic image-text information 101 and a backlight control module 2 for controlling a backlight source, wherein the transparent liquid crystal display module 1 is an ultra-thin liquid crystal display box having a thin film transistor, an advanced display function and a passive driving layout; the transparent liquid crystal display module 1 is movably connected with the backlight control module 2, and the backlight control module 2 can be moved to correspond to the back of the transparent liquid crystal display module 1 or can be moved to be away from the back of the transparent display module 1; at least part of the light generated by the backlight module 2 is projected to the back of the transparent liquid crystal display module 1; the transparent liquid crystal display module 1 and the backlight control module 2 are respectively connected with the control mainboard. The penetrable liquid crystal display device completely separates the backlight control module 2 from the traditional liquid crystal display device, and the backlight control module 2 can provide required backlight source light 001 outside the transparent liquid crystal display module 1; the backlight source supplying condition of the transparent liquid crystal display module 1 can be changed at any time through a light source control switch on the backlight control module 2; especially when the penetrable liquid crystal display device is used under the condition of sufficient outdoor light, the transparent liquid crystal display module 1 is only required to be opened from the backlight control module 2, the use angle of the transparent liquid crystal display module 1 is adjusted, and the light with sufficient external is used as the backlight source of the transparent liquid crystal display module 1, so that the image-text information 101 on the transparent liquid crystal display module 1 can be clearly browsed under sunlight; on the other hand, the backlight control module 2 does not need to work (does not need to provide a light source) under the condition of sufficient external light, so that the energy consumption can be greatly reduced.
Further, the transparent liquid crystal display module 1 is movably connected with the backlight control module 2 through the hinge connector 3, that is, the backlight control module 2 can be unfolded or closed in a hinge manner relative to the transparent liquid crystal display module 1. When the external light is insufficient, the backlight control module 2 is lighted up to work, the backlight light 001 generated by the backlight control module 2 can be projected to the back of the transparent liquid crystal display module 1 to provide a necessary backlight source for the image-text display of the transparent liquid crystal display module 1, and at the moment, the backlight control module 2 can be in an unfolded or closed state. When external light is sufficient, the backlight control module 2 can extinguish and does not work, external natural light rays 002 can be projected to the back of the transparent liquid crystal display module 1 to provide necessary backlight for image-text display of the transparent liquid crystal display module 1, and at the moment, the backlight control module 2 is in an unfolded state so that the external natural light rays 002 can be smoothly projected to the back of the transparent liquid crystal display module 2.
Furthermore, the transparent liquid crystal display module 1 and the backlight control module 2 are movably connected, so that a gap is difficult to avoid between the transparent liquid crystal display module 1 and the backlight control module 2, when the backlight control module 2 is lighted up to work, backlight light 001 may pass through the gap to cause a light leakage phenomenon, but the light leakage phenomenon is generally not obvious, and the browsing of the graphic information 101 on the transparent liquid crystal display module 1 is not greatly influenced; especially, in the case of sufficient external light, the light leakage phenomenon can be ignored. Of course, the above light leakage problem can be solved by the following structure: a shading strip 5 for shading the gap between the transparent liquid crystal display module 1 and the backlight control module 2 is arranged between the transparent liquid crystal display module 1 and the backlight control module 2, the gap can be effectively shaded by arranging the shading strip 5, and further the effect of preventing light leakage is achieved, and the shading strip 5 is made of opaque materials; besides adding the light-shielding strip 5 to solve the problem of light leakage; still can go out the shading limit at transparent liquid crystal display module assembly 1 and/or backlight control module assembly 2 go up integrated into one piece, when transparent liquid crystal display module assembly 1 and backlight control module assembly 2 expand relatively to a definite position, the shading limit can effectively shelter from the clearance, and then realize the leak protection light effect.
Further, backlight sources with different colors are arranged in the backlight control module 2 to cooperate with each other to form image-text information 101 with gorgeous colors; the backlight control module 2 is provided with a light source control switch (not marked in the figure) for controlling the backlight control module 2 to be switched on, and the light source control switch can be used for independently controlling whether the backlight control module 2 works or not, so that the control mode is simple and convenient.
Further, referring to fig. 7, the transparent liquid crystal display module 1 includes a first polarizer 11, a first glass substrate 12, a color filter 13, a first alignment film 14, a liquid crystal 15, a second alignment film 16, a second glass substrate 17, and a second polarizer 18; the transparent liquid crystal display module 1 adds charges to the transparent motor of each pixel or sub-pixel to generate an electrostatic field, so that molecules of liquid crystal are induced by the electrostatic field to induce charges and generate electrostatic torsion, the original rotation arrangement of the liquid crystal molecules is changed, and the rotation amplitude of passing light is changed; changing a certain angle so as to pass through the polarizing plate; by controlling the voltage, the degree of twist of the liquid crystal molecular arrangement can be controlled, thereby achieving different gray scales.
Further, referring to fig. 8, the backlight control module 2 includes a first optical film 21, a lamp reflection plate 22, a cold cathode lamp 23, a light guide plate 24, a second optical film 25, and a triangular sawtooth film 16; the cold cathode fluorescent lamp 23 is a light source, light can be guided out by the light guide plate 24, the second optical film 25 has a reflection function, the guided light is reflected to the first optical film 21, and the first optical film 21 and the triangular sawtooth film 16 mainly have a scattering function, so that the light is uniformly scattered and then is emitted outwards.
Further, the transparent liquid crystal display module 1 and the backlight control module 2 are movably connected with each other through a hinge connector 3, that is, the transparent liquid crystal display module 1 is turned over and opened relative to the backlight control module 2, and backlight light 001 generated by the backlight control module 2 may not be uniform enough when being projected to the back of the transparent liquid crystal display module 1, but the user cannot be influenced to browse the image-text information 101 on the transparent liquid crystal display module 1; and the graphic and text information 101 on the transparent liquid crystal display module 1 often only exists at a local position, as long as it is ensured that the backlight light 001 is projected at the back position corresponding to the displayed graphic and text information 101. Of course, the problem of uneven light projection can be solved by using the principle of a projector, specifically, a light projection assembly is arranged in the backlight control module 2, the light projection assembly comprises a spherical reflecting piece 7, a light projection lamp 8, a double-spherical condenser lens 9, a front lamp fresnel lens 10, a front center fresnel lens 11, an eccentric fresnel lens 12 and a light projection head 13 which are sequentially arranged along a light propagation path, and the light projection head 13 consists of two or three lenses; through the principle structure of the projector, the backlight source light 001 projected by the backlight control module 2 to the transparent liquid crystal display module 1 can be effectively ensured to be uniform, and the display effect of the image-text information 101 on the transparent liquid crystal display module 1 can be effectively ensured.
Detailed working principle
Referring to fig. 5: under the condition that the outside does not have enough natural light rays 002, a light source control switch on the backlight control module 2 is turned on to enable the backlight control module 2 to work in a lighting mode, and at the moment, the transparent liquid crystal display module 1 provides backlight light rays 001 through the backlight control module 2; when the backlight control module 2 is unfolded, the transparent liquid crystal display module 1 is in a transparent working mode, and a viewer can view the object 100 placed behind the transparent liquid crystal display module 1 while browsing the graphic information 101 on the transparent liquid crystal display module 1. The transparent working mode is suitable for the situation that the external natural light rays 002 are not enough to provide the backlight source needed by the transparent liquid crystal display module 1, such as being used at night or when indoor products are displayed or a display cabinet.
Referring to fig. 6: under the environment that the external natural light ray 002 is sufficient, a light source control switch on the backlight control module 2 is closed, so that the backlight control module 2 stops working, at the moment, the natural light ray 002 serves as a backlight source of the transparent liquid crystal display module 1, the transparent liquid crystal display module 1 is in a transparent working mode, and a viewer can view the object 100 placed behind the transparent liquid crystal display module 1 while browsing the image and text 101 on the transparent liquid crystal display module 1; in the transparent working mode, the backlight control module 2 can not work, so a large amount of electric energy can be saved, and the transparent working mode is low-carbon, energy-saving and environment-friendly. The transparent working mode can be suitable for the use environment with sufficient external natural light rays 002, and is particularly suitable for the product exhibition in the outdoor large-scale advertising lamp box.
When the penetrable liquid crystal display device is applied to electronic products, such as mobile phones, tablet computers, notebook computers and the like, the backlight control module 2 can be arranged on the matched independent light control shell; when using above-mentioned electronic product in the open air, when the luminance conflict takes place for external sufficient natural light ray 002 and the backlight light 001 that control module 2 produced in a poor light, can lift the accuse light shell of taking control module 2 in a poor light off, directly utilize natural light ray 002 to provide the backlight for transparent liquid crystal display module 1, guarantee electronic product's liquid crystal display device and normally show, made things convenient for outdoor use electronic product greatly.
Second embodiment
Referring to fig. 9, the present embodiment relates to a penetrable liquid crystal display device different from the first embodiment in that: a reflecting component 6 for uniformly projecting the light generated by the backlight control module 2 on the transparent liquid crystal display module 1 is arranged between the overturning outer side of the transparent liquid crystal display module 1 and the overturning outer side of the backlight control module 2; the reflecting surface of the reflecting component 6 for reflecting light is a plane or a cambered surface. The light projection of this embodiment cancels the projector principle of the first embodiment, and uses the reflection component 6 to emit the backlight light 001, so that the backlight light is uniformly projected to the back of the transparent liquid crystal display module 1, thereby ensuring uniform display of the image-text information 101.
Other parts not described above are the same as those of the first embodiment, and are not explained in detail here.
Third embodiment
Referring to fig. 10 to 20, the present embodiment relates to a penetrable liquid crystal display device different from the first embodiment in that:
the penetrable liquid crystal display device is suitable for environments such as exhibition, display and exhibition of high-end products or valuables, the object 100 for browsing can be placed behind the transparent liquid crystal display module 1, and simultaneously, the related image-text information 101 can be synchronously displayed on the transparent liquid crystal display module 1, so that the penetrable liquid crystal display device is very convenient to use, does not need to be additionally provided with a browsing box body for placing the object 100, and does not occupy redundant position space. In order to protect the privacy of the real object 100 without exposing the real object 100 temporarily, the transparent LCD device can be further provided with a switching module 4 for switching a transparent working mode or an opaque working mode; an electric control change-over switch (not marked in the figure) for independently controlling the switching module 4 is arranged on the switching module 4, and the electric control change-over switch has two gears of 'transparent' and 'fuzzy'; when the electric control switch is switched to a transparent gear, the object 100 placed behind the electric control switch can be seen through the transparent liquid crystal display module 1; when the electric control change-over switch is switched to a fuzzy gear, the object 100 placed behind the electric control change-over switch can not be seen through the transparent liquid crystal display module 1; therefore, the transparent liquid crystal display module 1 can be controlled to be transparent or non-transparent at any time by arranging the switching module 4.
Further, the transparent liquid crystal display module 1 is responsible for controlling the screen information of the screen, and the transparent liquid crystal display module 1 is transparent at any time except for displaying black information; however, the whole device is not transparent, and it is required to be the setting of the backlight control module 2 and the switching module 4, the switching module 4 should be in the open state first, and the backlight control module 2 should not disturb the light passing state, and the device may be transparent at this time. The backlight control module 2 uses three principles of scattering, changing polarization direction and dye absorption to disturb or obstruct light rays entering the transparent liquid crystal display module 1, so as to achieve the opaque effect; the transparent liquid crystal display device can select a transparent or non-transparent mode to use the transparent liquid crystal display screen, when the backlight control module 2 is turned on for use, the backlight of the backlight control module 2 can be turned off, and the environment natural light is used as the backlight, so that the transparent liquid crystal display device is more power-saving.
Further, the switching device 4 cannot be used as a backlight source of the transparent liquid crystal display module 1 alone, and there are only two backlight sources, one is sunlight, and the other is the backlight control device 2; the switching device 4 only helps the backlight to enter or prevent the light from entering the transparent liquid crystal display module 1 more uniformly and effectively; the switching module 4 is composed of more than one integral box of a polymer network liquid crystal box, a polymer dispersion liquid crystal box, a cholesteric liquid crystal box, a liquid crystal display box and a dye-doped liquid crystal display box;
wherein,
referring to fig. 14 to 17, the polymer network liquid crystal cell and the polymer dispersed liquid crystal cell respectively include a transparent electrode 41, a polymer 42, and liquid crystal molecules 43; the polymer network liquid crystal box and the polymer dispersion liquid crystal box mainly have the functions of scattering incident light rays into scattered emergent light, and the effect of molding lake and transparency can be realized through the two boxes; the fuzzy state helps to break up the incoming light rays with inconsistent intensity into uniform outgoing light rays, which is the same as the first optical film 21 on the upper side in the backlight control device 2; the two cells are respectively such that in the absence of a voltage, the polymer network cell is in the hazy state, while the polymer dispersed cell is in the transparent state; given the corresponding voltages, the situation is reversed, i.e. the polymer network cell is in a transparent state and the polymer dispersed cell is in a hazy state;
cholesteric liquid crystal cells are similar in principle to polymer network liquid crystal cells or polymer dispersed liquid crystal cells; that is, cholesteric liquid crystal cells scatter incident light to achieve the effect of mold lake and transparency, but it has reflected light, and transparency is not as good as the above two types of cells (polymer network liquid crystal cells or polymer dispersed liquid crystal cells);
referring to fig. 18, the liquid crystal display cell includes a first cell glass substrate 44, a first cell alignment film 45, a cell liquid crystal 46, a cell second alignment film 47, a second cell glass substrate 48, a cell polarizer 49; the liquid crystal display box has the same structure as the transparent liquid crystal display module 1, only a polaroid and a color filter are omitted, and the liquid crystal display box controls the transparency and the non-transparency by controlling the polarization direction of the entering light; firstly, a polarizer at the bottom layer of the liquid crystal display box can change unpolarized incident light into polarized light, after passing through the liquid crystal display box, the original polarization direction of liquid crystals arranged in different voltages is changed, and when the polarization direction is parallel to the polarizer at the bottom layer of the first device, the light can enter the transparent liquid crystal display module 1, namely, the transparent state; when the polarization direction forms a vertical direction, light rays cannot enter the transparent liquid crystal display module 1 to form an opaque state;
referring to fig. 19 and 20, the dye-doped liquid crystal display cell includes a transparent electrode 41, liquid crystal molecules 43, and a fuel 410; the dye-doped liquid crystal display cell is equivalent to a dye-doped liquid crystal display cell, and the arrangement of liquid crystal can influence the arrangement of dye molecules; when the dye molecules are vertically arranged, the dye-doped liquid crystal display cell is in a transparent state; when the dye molecules are out of vertical, the incoming light is absorbed, making the dye-doped liquid crystal display cell opaque.
Further, the transparent liquid crystal display module 1 is movably connected with the switching module 4 through the corresponding hinge connecting piece 3; the switching module 4 is movably connected with the backlight control module 2 through the corresponding hinge connecting piece 3.
Detailed working principle
Referring to fig. 10, under the condition that the external natural light ray 002 is sufficient, in order to ensure that the transparent liquid crystal display module 1 does not have a black screen phenomenon, the transparent liquid crystal display module 1 is turned over and unfolded to a suitable angle relative to the backlight control module 2, and the natural light ray 002 is fully utilized as a backlight source of the transparent liquid crystal display module 1, so that a viewer can view the object 100 placed behind the transparent liquid crystal display module 1 through the transparent liquid crystal display module 1 while browsing clear image-text information 101 on the transparent liquid crystal display module 1; referring to fig. 11, in order to realize the transparent-to-opaque conversion of the transparent liquid crystal display module 1 under sunlight, the electrically controlled switch can be switched to a "fuzzy" position, so that the transparent liquid crystal display module 1 is opaque under sunlight, and the viewer can not see the object 100 placed behind the transparent liquid crystal display module 1 but only view the graphic information 101 on the transparent liquid crystal display module 1, and can not see the object 100 placed behind the transparent liquid crystal display module 1 but protect the object 100 which needs to be kept secret under an unpublished state. Therefore, the transparent liquid crystal display module 1 can be effectively controlled to be switched between transparent and non-transparent at will through the switching module 4.
Under the condition that the outside does not have enough natural light rays 002, the backlight control module 2 needs to be opened, the backlight light rays 001 generated by the backlight control module 2 are used as the backlight source of the transparent liquid crystal display module 1, and at the moment, a viewer can view the object 100 placed behind the transparent liquid crystal display module 1 through the transparent liquid crystal display module 1 while browsing clear image-text information 101 on the transparent liquid crystal display module 1; in order to realize the conversion from transparent to opaque of the transparent liquid crystal display module 1, the electric control switch can be switched to a 'fuzzy' gear, so that the transparent liquid crystal display module 1 is opaque, the sight of a viewer can not penetrate through the transparent liquid crystal display module 1 and can only browse the image-text information 101 on the transparent liquid crystal display module 1, and the object 100 placed behind the viewer can not be seen, so that the object 100 needing to be kept secret in an unpublished state can be protected.
The foregoing is a preferred embodiment of the present invention, and the basic principles, principal features and advantages of the invention are shown and described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and the invention is intended to be protected by the following claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A penetrable liquid crystal display device, comprising: comprises a transparent liquid crystal display module (1) for displaying electronic image-text information and a backlight control module (2) for controlling a backlight source; the transparent liquid crystal display module (1) is movably connected with the backlight control module (2), and the backlight control module (2) moves to correspond to the back of the transparent liquid crystal display module (1) or moves to be away from the back of the transparent display module (1); at least part of light rays generated by the backlight module (2) are projected to the transparent liquid crystal display module (1); the transparent liquid crystal display module (1) and the backlight control module (2) are respectively connected with the control mainboard.
2. The penetrable liquid crystal display device of claim 1, wherein: the transparent liquid crystal display module (1) is movably connected with the backlight control module (2) through a hinge connecting piece (3).
3. The penetrable liquid crystal display device of claim 1, wherein: and a shading strip (5) for shading the gap between the transparent liquid crystal display module (1) and the backlight control module (2) is arranged between the transparent liquid crystal display module and the backlight control module.
4. The penetrable liquid crystal display device of claim 1, wherein: the device also comprises a switching module (4) for switching a transparent working mode or an opaque working mode; the transparent liquid crystal display module (1), the backlight control module (2) or the switching module (4) are provided with electric control switches for independently controlling the switching module (4); the switching module (4) is movably connected between the transparent liquid crystal display module (1) and the backlight control module (2).
5. The penetrable liquid crystal display device of claim 4, wherein: the switching module (4) is composed of more than one integral box of a polymer network liquid crystal box, a polymer dispersion liquid crystal box, a cholesteric liquid crystal box, a liquid crystal display box and a dye-doped liquid crystal display box.
6. The penetrable liquid crystal display device of claim 4, wherein: the transparent liquid crystal display module (1) is movably connected with the switching module (4) through the corresponding hinge connecting piece (3); the switching module (4) is movably connected with the backlight control module (2) through the corresponding hinge connecting piece (3).
7. The penetrable liquid crystal display device of claim 1, wherein: backlight sources with different colors are arranged on the backlight control module (2); and a light source control switch for controlling the backlight control module (2) to be switched on is arranged on the transparent liquid crystal display module (1) or the backlight control module (2).
8. The penetrable liquid crystal display device of claim 1, wherein: be provided with the light projecting subassembly on control module group (2) in a poor light, the light projecting subassembly includes projecting lamp (8), two sphere condensing lens (9), preceding fresnel lens (10) of lamp, positive center fresnel lens (11), eccentric fresnel lens (12) and light projecting head (13) that set gradually along light propagation route.
9. The penetrable liquid crystal display device of claim 1, wherein: a reflecting component (6) used for uniformly projecting the light rays generated by the backlight control module (2) on the transparent liquid crystal display module (1) is arranged between the transparent liquid crystal display module (1) and the backlight control module (2); and the reflecting surface of the reflecting component (6) for reflecting light is a plane or an arc surface.
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| CN201811102019 | 2018-09-20 | ||
| CN2018111020191 | 2018-09-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113096567A (en) * | 2021-04-25 | 2021-07-09 | 三博显示有限公司 | Multifunctional display panel |
| CN116068802A (en) * | 2021-10-29 | 2023-05-05 | 北京小米移动软件有限公司 | Electronic equipment |
-
2019
- 2019-09-19 CN CN201910888832.4A patent/CN110441948A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113096567A (en) * | 2021-04-25 | 2021-07-09 | 三博显示有限公司 | Multifunctional display panel |
| CN116068802A (en) * | 2021-10-29 | 2023-05-05 | 北京小米移动软件有限公司 | Electronic equipment |
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Effective date of registration: 20201204 Address after: Room 203, 129 Baishi Avenue, Pengjiang district, Jiangmen City, Guangdong Province Applicant after: Jiangmen Huayuan Industrial Products Development Co.,Ltd. Address before: 529000 501, No.111 Shengli Road, Pengjiang district, Jiangmen City, Guangdong Province Applicant before: Lin Anjiang |
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