CN106531001A - Reflective big-pixel bistable-state color display module - Google Patents
Reflective big-pixel bistable-state color display module Download PDFInfo
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- CN106531001A CN106531001A CN201610971435.XA CN201610971435A CN106531001A CN 106531001 A CN106531001 A CN 106531001A CN 201610971435 A CN201610971435 A CN 201610971435A CN 106531001 A CN106531001 A CN 106531001A
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- backboard
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- eyeglass
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- display module
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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
- G09F9/37—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 movable elements
- G09F9/372—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 movable elements the positions of the elements being controlled by the application of an electric field
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- 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
- G09G3/3433—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 light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/346—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 light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on modulation of the reflection angle, e.g. micromirrors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention relates to a reflective big-pixel bistable-state color display module, which comprises a transparent panel, a backboard, a plurality of movable lenses, supporting pins and electric conductive elastic fixing pieces, wherein a layer of semipermeable reflective film is arranged on the back side of the transparent panel; a transparent layer covers the surface of the semipermeable reflective film; by virtue of the supporting pins, the transparent panel and the backboard are connected; the side, facing the transparent panel, of the backboard is provided with electrodes; the movable lenses are arranged between the transparent panel and the backboard; the side, facing the transparent panel, of each movable lens is provided with a reflective layer; the movable lenses are connected to the transparent layer or connected to the supporting pins by virtue of the elastic fixing piece; the movable lenses get into contact with the transparent layer or the backboard; and the elastic fixing pieces and the electrodes on the backboard are connected to a driving circuit. The display module provided by the invention is simple in structure, convenient to manufacture and relatively low in cost; the display module is low in energy consumption and excellent in performance under outdoor strong light, and the display module is lightly affected by climate and temperature; and two predetermined contrast colors can be implemented at each pixel, so that the combined display of words or patterns is achieved.
Description
Technical field
The present invention relates to color display technology field, more particularly to a kind of big pixel bistable display mould of color reflective formula
Block.
Background technology
Current display screen generally adopts illuminated display screen, illuminated display screen to there are some defects.People are usually
Can find oneself not seeing mobile phone screen out of doors, reason is that the brightness of display is not large enough to by force overcome the bright of ambient light
Degree.The light sent from display screen will also result in eyestrain, particularly eyes also in developmental child, this illuminated
Screen can cause very big injury to child's eyes.
Importantly, by taking mobile phone as an example, under the working condition of normal shutdown, liquid crystal display still disappears illuminated display
More than the 70% of consumption mobile phone Overall Power Consumption, the backlight of the power consumption of liquid crystal display only about 6% from panel.For mobile aobvious
The demand of the energy for showing is increased with 25～35% speed year by year, and battery capacity is increased less than 6% every year.This expanding day
Gap need fundamentally to be resolved, can just make mobile device more energy efficient, healthy and environmentally friendly.
All the problems above cannot be solved by any existing luminous colored display screen technology.Thoroughly solution must
(RCD, Reflective Color Display) technology must be shown from Electronic Paper or reflection-type colorful, such as the print on paper
Brush is the same, using ambient light come display image.
RCD has obtained many concerns in recent years, but does not also occur one kind on market so far and disclosure satisfy that market demands
RCD products.At present, RCD panels generally comprise bistable light modulator arrays, and each photomodulator generates specific primary colors, face
Color modulates mixing by the combination of RGB color, realizes the less and more dense sub-pixel of various colored needs to express three kinds
A kind of primary colors in primary color.These arrangement of subpixels on same substrate layer, spatially interleaved arrangement form dot matrix.Reason
The color and gray scale thought is realized by the on off state of adjustment sub-pixel.
Current RCD technologies have two root problems.First problem is also that the problem of most serious is embodied in low reflecting rate
In low colour gamut.It is two basic mesh for showing that industry could not be realized reflective so far to improve reflecting rate and simplify manufacturing process
Mark.Although the application that RGB three primary colories are mixed colours on illuminated or Nonopaque type display is very successful, RCD display is applied to
On then have fatal problem.As a result it is reflective efficiency very low (generally below 20%), produces under general environment optical condition
Market cannot be received for raw color.
Another insoluble problem is that resolution and gray level are limited by sub-pixel size.Spatial color and bistable
The shake of state sub-pixel requires that three close placement groups of primary colors element realize the gray level of color.This substantial amounts of, high density of needs
Sub-pixel, and need ranks connecting line come drive control they.Even if it is achieved that manufacturing cost is also extremely expensive.
Simulation Fabry (FPI) color modulator can solve the problem that two root problems of above-mentioned RCD.The concept of simulation FPI
It is suggested many years ago, but as which has the strict accuracy of manufacture to require therefore it is difficult to manufacture and realization.Due to display floater
On using substantial amounts of pixel, as a consequence it is hardly possible to when panel processing and fabricating is completed keep all pixels mechanically and electrically performance one
Cause property.On panel, two reflecting layer of each FPI manipulator will keep perfect parallelism when driving, any between mirror surface
Inclination will cause pixel to show rainbow speckle and cisco unity malfunction.One complete display floater only needs to occur several to be had
Defect pixel just be enough to scrap which, here it is the where the shoe pinches that simulation Fabry color modulator pixel makes, makes industry
Message board or outdoor billboard are even more and are difficult.And traditional LED display power consumption is big, it is difficult to needed for being provided by solar energy
Electric energy, it is necessary to provide energy by civil power.Although black-and-white crystal display screen power consumption is very low, the impact of climate temperature is very big,
The scope of application is very narrow.
The content of the invention
The present invention is in order to solve above-mentioned technical problem, there is provided a kind of big pixel bi-stable display module of color reflective formula, its
Structure is very simple, easy to make, avoids the photoetching in MEMS processing and fabricatings and etching procedure, and using existing on market
Common material, it is using circuit board processing and fabricating and other common processing technique, cheap for manufacturing cost, substantially reduce and enter market
Threshold, be future high-resolution show thin film development establish solid foundation.And have under low energy consumption and outdoor high light
Superior function, can be very strong to the adaptability of climate temperature condition by solar powered, energy saving.Colourama is done by which
Manipulator is related to as pixel cell, by the regular or irregular lattice module of multiple bistable state interference of light manipulators composition,
The arrangement of multiple lattice modules can risk various words or pattern, for outdoor billboard or other open-air industrial display screens.
The display of this color is completed under conditions of zero-power is close to, even if driving energy consumption when showing dynamic is also simply traditional
Below two orders of magnitude for showing.
What the above-mentioned technical problem of the present invention was mainly addressed by following technical proposals：The present invention includes transparent area
Plate, backboard, some mobile eyeglasses, supporting pin and the flexible fastening piece with electric conductivity, the back side of described transparent panel is provided with
One layer of semi-transparent reflective membrane, the surface of semi-transparent reflective membrane are coated with layer of transparent layer, described backboard and described transparent panel phase
Correspondence, the transparent panel and backboard described in described support pin connection, if described backboard is provided with towards the one side of transparent panel
Dry electrode, described mobile eyeglass are located between transparent panel and backboard, and mobile eyeglass is provided with one towards the one side of transparent panel
The clear layer or described flexible fastening piece of layer reflector layer, the described mobile eyeglass of flexible fastening piece connection and transparent panel connects
Mobile eyeglass and supporting pin are connect, the spacing between backboard and described clear layer is more than the thickness of mobile eyeglass, mobile eyeglass
The clear layer of reflector layer and transparent panel contacts or mobile eyeglass and backboard contact, the electricity on flexible fastening piece, backboard
Pole is connected with the drive circuit being located at outside display module respectively.Transparent panel can adopt glass for raw material, it would however also be possible to employ
Other transparent materials, such as macromolecular material etc., by hot pressing or injection mo(u)lding, transparent panel also can be by large-area transparent
Plate is cut and is obtained.Semi-transparent reflective membrane is one layer of plating metal film up, general thick for 5～15 nanometers, usually metal
Chromium or other suitable light reflecting materials.Clear layer is the transparent membrane of a number of plies ten to hundreds of nanometers thickness.Transparent panel
Flatness need be protected, should not have any obvious fluctuating, prevent from causing the deviation of the interference of light.Moving eyeglass can be
The rectangular shape or arbitrary shape of triangle, square, hexagon, octagon, circle or composition seven segment numerical tubular construction.Move
Index glass piece is made up of glass, metal, macromolecular material or ceramics, and the reflector layer on mobile eyeglass generally passes through metal coating shape
Into such as more than the aluminium film of 30 nano thickness.Many technologies of current metal and non-conductive plated film are all very ripe, if any CVD,
The various methods such as PVD, spin coating, are not described further here.Mobile eyeglass is pressed on clear layer or backboard by flexible fastening piece
On.In the present invention, the FPI interference of light that pixel is consisted of the reflector layer on the semi-transparent reflective membrane on transparent panel and mobile eyeglass
Produce color.The signal that drive circuit is formed is made by circuit connection applied voltage between flexible fastening piece and back plate electrode
Mobile eyeglass is abreast zoomed in or out backboard, so as to change semi-transparent reflective membrane along moving perpendicular to the direction of transparent panel
The distance between with reflector layer, that is, change the distance between two interference surfaces, realize and each moves the corresponding pixel of eyeglass
Color change.In the present invention, priming color is determined by the thickness for being covered in clear layer on semi-transparent reflective membrane, during original state,
Reflector layer and clear layer are completely attached to, and the thickness of clear layer is adjusted when making panel, you can the semi-transparent reflective membrane of adjustment and reflector layer
Original state spacing, that is, clear layer thickness determine display module primary colours, be at this moment the first stable state；Contrast color
Controlled by drive circuit, under the control of drive circuit, make to move eyeglass and leave its home position and draw close backboard, so as to
Change the distance between interference of light face, be at this moment the second stable state.When mobile eyeglass can certainly be abutted backboard, pixel shows
Color as priming color, the color that pixel shows when the reflector layer of mobile eyeglass abuts clear layer color as a comparison.Cause
This, in display module, each pixel can show two kinds of colors, i.e. bistable state.The thickness of clear layer determines the face of the first stable state
Color, when mobile eyeglass abuts backboard, the distance between reflector layer and semi-transparent reflective membrane determine the color of the second stable state.Therefore, show
Show that each pixel in module can realize predetermined two kinds of contrasting colors, thus can be by pixel in module
Color contrast combination display digit, letter, word or pattern.The arrangement of mobile eyeglass can be arranged in a regular array,
Irregular alignment can be carried out as needed, and the display for realizing numeral can be also arranged by 7 segment numeral tubular constructions.By multiple display modules
Arrangement is assembled into a complete display floater, so that it may shows the information being made up of numeral, letter, word and pattern, becomes
Outdoor billboard or other industrial information display boards.Present configuration is simple, easy to make, avoids the light in MEMS processing and fabricatings
Carve and etching procedure, and using existing common material on market, using circuit board processing and fabricating and other common processing
Technique, it is cheap for manufacturing cost, the threshold into market is substantially reduced, is that the development of high-resolution display in future thin film establishes solid
Basis.And power consumption is extremely low, below two orders of magnitude that also simply tradition shows of driving energy consumption during Dynamic Announce, therefore can profit
Which is powered with solar energy, greatlys save the energy, while with the superior function under outdoor high light, to climate temperature condition
Adaptability it is very strong.
Under the initial condition not driven, the distance between semi-transparent reflective membrane and reflector layer (i.e. two reflectings surface of the interference of light
The distance between) determine pixel priming color.The interference optical wavelength for reflecting is a times of two distances between the two.Because
The scope of visible wavelength is 400～700 nanometers, and the distance of half-wavelength is 200～350 nanometers.For product between two metal coverings
Raw interference, illustrates that if the interference color for obtaining is black or brown the chamber depth between the optical interference layer is less than 200
Nanometer；Interfere any color all to show that the distance between two-layer interference surface is more than 200 nanometers；Color fringe shows two interference
Face it is not parallel.If it exceeds 350 nanometers, then second level color fringe is presented between 350 nanometers to 500 nanometers, 500 nanometers are extremely
650 nanometers is in third level color fringe.The saturation of color can be between two interference surfaces distance and visible wavelength range
Multiple increases and reduces, and gradually becomes more and more not substantially, and to the last striped disappears.Therefore according to the needs in market, pixel
Certain color fringe can also be specially realized under a state, to produce special display effect.The generally mobile eyeglass back of the body
The cavity of 0.2～5 micrometer depth is left between face and backboard, this cavity depth is set to a suitable distance, moving lens
When piece is driven, pixel just shows another color for determining.Thus, each pixel can be in priming color and driving
Change between color.The more little then driving voltage of the depth of cavity is lower, and it is easier to change, but it is higher to make the requirement of precision.It is empty
Chamber depth is more than more than 1 micron, and the color that driving condition shows is in canescence.
The driving method of drive circuit has various, such as direct drive, active matrix drive and passive-matrix driving method.Directly
Driving principle very simple is connect, each pixel one lead of correspondence applies driving voltage between lead and public electrode to drive
Dynamic mobile eyeglass.Its advantage is simple and clear, has the disadvantage the number of lead equal to M × N, and wherein M and N is to move eyeglass dot matrix
Row and columns in arrangement.It will be apparent that this driving method number of leads is relatively more, for the dot matrix of pixel-intensive very
Difficult operation, and the display module less for pixel is more suitable for, and is particularly suitable for moving what eyeglass was arranged by 7 segment numeral tubular constructions
Display module.Lead required for being driven using active-matrix and passive-matrix is then M+N, and number of leads is substantially reduced, therefore
The type of drive that the dot matrix of pixel-intensive is more practical should be driven using active-matrix or passive-matrix.For actively
For matrix, the behind of transparent panel all mobile eyeglass below becomes an electrode, has and each movement eyeglass on backboard
Corresponding electrode, applies driving voltage to above-mentioned electrode by active-matrix.Active TFT matrix-scanning methods applied ten
Divide extensive, be not detailed herein.The advantage of active TFT matrix drivings is that control and refresh rate are more flexible, and picture
Plain dispaly state is easily guaranteed that, thus color effect is good, but active TFT matrix drivings manufacturing cost is very high, aobvious for bistable state
Wasted one's talent on a petty job for showing module a little.Therefore for bi-stable display module, driven using the easy passive-matrix of low cost, control
It is dynamic more reasonable.For passive-matrix drives, the conductive surface of mobile eyeglass behind can be formed by plated film row (or
Row) electrode strip that arranges of direction, it is vertical with the electrode strip on backboard, electrode strip on backboard and move the electrode strip of back lens surface
Driven by passive-matrix mode.Passive-matrix scan method has been applied quite varied, is just not described in detail here.
Preferably, plural support column is provided with around described mobile eyeglass, support column and described transparent
Panel is vertical, and the front end of support column is connected with the clear layer of transparent panel, the front end of the rear end of support column and described supporting pin
It is connected, described flexible fastening piece is connected between mobile eyeglass and the rear end of support column, described backboard and described support
Pin is connected.Flexible fastening piece for fixed mobile eyeglass can be directly bonded to clear layer, then can omit support column；Also may be used
Using support column, the flexible fastening piece for fixed mobile eyeglass bonds on the support columns.Binding agent can be suitable for using any
In the binding agent of corresponding semi-transparent reflective surface material, such as hot-melting type glue, resinae glue, humidity cure glue or UV solidification glues etc..
Dagger can adopt little glass cube (such as 0.5 × 0.5 millimeter, thick 0.2 millimeter glass cube), place by array and bond
Support column is formed on clear layer.Certainly other solid materials can also be used.The thickness range of support column is zero to mobile eyeglass
Thickness.Support column thickness must be less than mobile lens thickness, i.e., support column is thinner, to ensure to move eyeglass reflector layer and transparent area
Between plate clear layer do not have it is powered under the conditions of contact with each other, with obtain interfere color satisfaction saturation.
Preferably, a layer insulating is coated with the electrode of described backboard.To avoid moving eyeglass and backboard contact
Shi Fasheng is turned on.Backboard also plays a part of display module back-protective layer simultaneously except providing circuit connection and driving.Backboard
Strip shaped electric poles can be produced by plated film, for the driving of passive-matrix using the glass material same with transparent panel.Or adopt
With ripe non-crystalline silicon, oxide or TFT technology, formed on glass material and drive layer, as active matrix drive.Also
Can directly use pcb board, including common pcb board, aluminium base pcb board and ceramic pcb board etc..If using ceramic pcb board
Backboard is made, due to its matching with glass CTE, it should be a kind of preferable back veneer material.
Preferably, one layer of polymeric thin film is scribbled on the reflector layer of described mobile eyeglass, by the pressing in soft or hard face
Reflective layer surface formed a layer thickness differ to polymer film layer, the thickness of polymer film layer is reflective with mobile eyeglass
The fluctuating of layer surface is offset, and described semi-transparent reflective membrane and reflector layer are opposing parallel.If selecting glass material to make transparent area
Plate and mobile eyeglass, the then surface for moving the clear layer of the reflector layer or transparent panel of eyeglass can also carry out planarization process,
The depth of parallelism between two interference surfaces is improved i.e. by smooth compensation.Specifically can cloth apply thin polymer film (thickness be less than 1 micro-
Rice) as cushion, then by the difference pressed to reduce the depth of parallelism or flatness in soft or hard face.Can be by two glass tables
Face carries out hot pressing or UV solidifications so that the thickness of thin polymer film offsets to reach reflector layer and saturating with the fluctuating of glass surface
Bright layer it is opposing parallel.That is in this way, any submicron defect on the surface can be by polymer film layer
To compensate, so as to keep opposing parallel between two interference surfaces.
Preferably, described flexible fastening piece is the elastic film layer corresponding with described transparent panel, Thin Elastic
Film layer is divided into some groups of movement eyeglass film layers, support column film layer and resilient braces by cutting, four of mobile eyeglass film layer
Corner is respectively connected with the resilient brace described in, the mobile eyeglass film layer of resilient brace connection and support column film layer, mobile eyeglass
The rear end face bonding of the back adhesive of film layer and described mobile eyeglass, support column film layer and described support column, support column film
Layer is provided with a through hole that may pass through described supporting pin.In the top dispensing of mobile back lens surface and support column, dispensing can
With by way of drop, it is also possible to by way of silk screen printing or other dies, concrete grammar depends on the control of dispensing amount
System and speed for dispensing glue and efficiency, bonding can be connected by thermosol or other binding agents.Elastic film layer is polymer thin
Film or conductive polymer film, metallic film, when elastic film layer is thin polymer film, elastic film layer towards backboard
Face is coated with layer of metal conducting film, all turns on the back side of the mobile eyeglass that the transparent panel back side arranged by array, connects into
One electrode.Mobile back lens surface also can be linked to be strip shaped electric poles certainly that arrange along row or along row using elastic film layer, such as
The conducting of horizontal mobile eyeglass film layer, support column film layer and resilient brace, longitudinal direction are made by plated film masking method or lithographic method
Between be not turned on, so as to formed by row arrange strip shaped electric poles, with realize passive-matrix drive.
Preferably, described electrode is respectively provided with described and each corresponding backplane region of movement eyeglass, it is described
Elastic film layer forms the electrode of mobile back lens surface, moves the electrode on the electrode and backboard of back lens surface respectively and is located at aobvious
Show that the active matrix drive circuit of module-external is connected.Electrode on the backboard corresponding with same mobile eyeglass is conducted structure
Into an electrode, i.e., the electrode for having and moving number of lenses identical to be mutually not turned on backboard.The electrode of mobile back lens surface connects
It is connected on a public electrode.
Preferably, described flexible fastening piece is elastic pressuring plate, elastic pressuring plate is sleeved on the middle part of supporting pin and and props up
Support pin bonding, two tongues that elastic pressuring plate has four tongues for stretching out to four direction respectively, front side are turned on, two of rear side
Tongue turn on, reticle mask make front side tongue and the tongue of rear side between insulate；Four angles of described mobile back lens surface
The place that falls is provided with chamfering, is coated with conductive layer in mobile back lens surface and chamfering, two on front side of elastic pressuring plate tongue and front-seat two
The chamfering of adjacent mobile eyeglass is connected, the chamfering of the adjacent mobile eyeglass of two on rear side of elastic pressuring plate tongue and heel row two
It is connected, makes the back side of the mobile eyeglass of same row connect to form strip shaped electric poles by circuit, between the mobile eyeglass of adjacent row mutually
Mutually insulate.The material of elastic pressuring plate is the polymeric material that metal material, conducting polymer composite or surface are coated with metal conductive film
Material.Certainly also mobile eyeglass can be linked to be by the strip shaped electric poles arranged by row by elastic pressuring plate, as long as meeting mobile back lens surface
Strip shaped electric poles and backboard on strip shaped electric poles it is perpendicular.Elastic pressuring plate can also be passed through by transparent panel behind by array
The mobile eyeglass of arrangement is linked to be an electrode, to realize active matrix drive.Conductive layer in mobile back lens surface and chamfering can
Being metal coating, it is also possible to plate other conductive materials.Elastic pressuring plate and supporting pin can be also realized by 3D printing method.
Preferably, the electrode on described backboard is in strip-like-shaped electrode into strips, the setting of the strip shaped electric poles on backboard
The setting direction of the strip shaped electric poles that direction and described mobile back lens surface are formed is perpendicular, the strip shaped electric poles and movement on backboard
The strip shaped electric poles that back lens surface is formed are connected with the passive-matrix drive circuit being located at outside display module respectively.
Preferably, described flexible fastening piece is elastic pressuring plate, elastic pressuring plate is sleeved on the middle part of supporting pin and and props up
Support pin bonding, elastic pressuring plate are extended with plural tongue, and described mobile eyeglass is arranged in seven segment numerical tubular construction, described
The back side of mobile eyeglass be provided with chamfering, be coated with conductive layer in mobile back lens surface and chamfering, the tongue difference on elastic pressuring plate
It is connected with the chamfering of the mobile eyeglass around which, makes the back side of the mobile eyeglass for being arranged in seven segment numerical tubular construction be linked to be one
Individual public electrode.The material of elastic pressuring plate is the polymerization that metal material, conducting polymer composite or surface are coated with metal conductive film
Thing material.Mobile eyeglass is arranged in seven segment numerical tubular construction, realizes the display of numeral.In the technical program, elastic pressuring plate has two
Kind, the chamfering of the mobile eyeglass of a kind of connection, be sleeved on in the non-conterminous supporting pin in transparent panel edge；Another kind both connected
The chamfering of mobile eyeglass can be connected with the public electrode on backboard again, be sleeved in the supporting pin at transparent panel edge.It is logical
The connection of elastic pressuring plate is crossed, makes the back side of the mobile eyeglass for being arranged in seven segment numerical tubular construction be linked to be a public electrode and the back of the body
Public electrode on plate is connected.
Preferably, support frame is provided with around described transparent panel behind, support frame is surrounded and is arranged in seven sections
The mobile eyeglass of digital tubular construction, the height of support frame are more than the thickness of mobile eyeglass；Electrode on described backboard has eight
Individual, eight electrodes are corresponding with the seven segment numerical tubular construction of mobile eyeglass, and eight electrodes respectively lead to the electricity formed by conducting film
Pole lead, also has a public pole patchboard on backboard, public pole patchboard is corresponding with support frame, and described backboard is installed
In described support frame, the tongue and described public pole patchboard on the elastic pressuring plate adjacent with support frame is connected,
Move the public electrode of back lens surface to be connected with the public pole patchboard on backboard, eight on backboard piece contact conductor and public
Pole patchboard is connected with the direct driving circuit being located at outside display module respectively.The height of support frame is with to mobile eyeglass one
Individual small activity space is defined, generally within a few micrometers, to move eyeglass between initial condition and driving condition
Conversion, the more little then driving voltage of distance are lower, but it is higher to make required precision.Realize that bistable state is double-colored if desired, then
Therebetween distance needs control within 1 micron.Backboard and support frame bonding, can adopt resinoid,
UV solidification glues can be used.If the stock of display module adopts macromolecular material, such as PC then select macromolecule
Material laser is welded or other bonding modes.
The invention has the beneficial effects as follows：Simple structure, easy to make, material is more common, and manufacturing cost is relatively low, with mental retardation
Superior function under consumption and outdoor high light, the impact of climate temperature are less, and reliability is high, and each pixel in a module is all
Predetermined two kinds of contrasting colors can be realized, display digit, letter, text are combined by the color contrast of pixel in module
Word or pattern, multiple module lattice arrangements constitute large scale, the display screen of low resolution, substantially reduce reflection-type colorful and show point
Array module enters the threshold in market such that it is able to which, with minimum resource, making one kind at low cost is used for outdoor billboard or work
The civilian low resolution display screen of industry, is that solid foundation is established in the development of high-resolution display in future thin film.
Description of the drawings
Fig. 1 is a kind of side structure schematic view of the present invention in the first stable state.
Fig. 2 is a kind of side structure schematic view of the present invention in the second stable state.
Fig. 3 is a kind of side structure schematic view of embodiment 1.
Fig. 4 is a kind of partial rear structural representation of mobile eyeglass and elastic film layer attachment structure in embodiment 1.
Fig. 5 is a kind of backsight structural representation of mobile eyeglass arrangement architecture in embodiment 2.
Fig. 6 is a kind of partial structural diagram of mobile eyeglass and elastic pressuring plate attachment structure in embodiment 2.
Fig. 7 is a kind of main structure diagram of 2 dorsulum Top electrode layout of embodiment.
Fig. 8 is a kind of backsight structural representation of mobile eyeglass arrangement architecture in embodiment 3.
Fig. 9 is a kind of main structure diagram of 3 dorsulum Top electrode layout of embodiment.
1. transparent panel in figure, 2. backboard, 3. moves eyeglass, 4. supporting pin, 5. flexible fastening piece, 6. support column, 7. bullet
Property thin layer, 8. elastic pressuring plate, 9. support frame, 11. semi-transparent reflective membranes, 12. clear layers, 21. strip shaped electric poles, 22. electrodes,
23. contact conductors, 24. public pole patchboards, 31. reflector layers, 32. chamferings, 71. movement eyeglass film layers, 72. support column film layers,
73. resilient braces, 74. through holes, 81. tongues.
Specific embodiment
Below by embodiment, and accompanying drawing is combined, technical scheme is described in further detail.
Embodiment 1：The big pixel bi-stable display module of color reflective formula of the present embodiment, as shown in Figure 3, Figure 4, including one
1, backboard 2 of individual transparent panel, 35 3,48, mobile eyeglass glass supports of supporting pin 4,48 for being arranged in 5 × 7 arrays
Post 6 and an elastic film layer 7 as flexible fastening piece 5, the size of transparent panel 1, elastic film layer 7 and backboard 2
It is corresponding with the size of the 35 mobile eyeglasses arranged with 5 × 7 arrays.The back side of transparent panel 1 is coated with one and half transflections
Light film 11, the surface of semi-transparent reflective membrane 11 be coated with 12,48 glass support post 6 of layer of transparent layer be arranged in 6 × 8 point it is a burst of
Row are vertically mounted on the back side of transparent panel, the front end of support column 6 and clear layer bonding, and four neighbouring support columns are surrounded
Space in place a mobile eyeglass respectively, i.e., per piece move eyeglass the corresponding outside in four angles have a support column,
And mobile eyeglass 3 is one layer of reflector layer 31 towards the one side of transparent panel 1, the reflector layer 31 and transparent panel 1 of mobile eyeglass 3
Clear layer 12 is contacted, and elastic film layer 7 is covered in the back side of the 35 mobile eyeglasses arranged with 5 × 7 arrays, elastic film layer 7
Multigroup mobile eyeglass film layer 71, support column film layer 72 and resilient brace 73 are divided into by cutting, the four of mobile eyeglass film layer 71
Individual corner is respectively connected with a resilient brace 73, the mobile eyeglass film layer 71 of the connection of resilient brace 73 and support column film layer 72, mobile
The rear end face bonding of the back adhesive of eyeglass film layer 71 and mobile eyeglass 3, support column film layer 72 and support column 6, support column film layer
The front end for having a through hole 74 that may pass through supporting pin 4, supporting pin 4 on 72 is connected through through hole 74 with the rear end of support column 6,
Support pin is corresponded with support column and is connected.Elastic film layer 7 is thin polymer film or conductive polymer film, metallic film, when
When elastic film layer is thin polymer film, elastic film layer is coated with layer of metal conducting film towards the one side of backboard, forms movement
The electrode of back lens surface.Display module is backmost backboard 2, is had and the one-to-one installing hole of supporting pin on backboard, is installed
Borehole jack in supporting pin and and supporting pin bonding, make backboard in the supporting pin, and have the one of electrode on backboard 2 facing to bullet
Property thin layer 7, has certain spacing between backboard and elastic film layer, making to move eyeglass has moveable space.With each shifting
Respectively there is an electrode on 3 corresponding backboard of index glass piece, 2 region, form 35 electrodes being mutually not turned on backboard, the electrode of backboard 2
On be coated with a layer insulating, it is to avoid there are conducting, the moving lens that elastic film layer 7 is formed when elastic film layer and backboard are contacted
Active matrix drive electricity of 35 electrodes on one electrode at 3 back side of piece and backboard 2 respectively and outside display module
Road is connected.The surrounding in the space that transparent panel and backboard are surrounded is packaged to form with fine globality display mould
Block.
Embodiment 2：The big pixel bi-stable display module of color reflective formula of the present embodiment, as shown in Fig. 5, Fig. 6, Fig. 7, bag
Include 1, backboard 2 of a transparent panel, 35 mobile eyeglasses, 3,48 supporting pins 4 for being arranged in 5 × 7 arrays and 48 conducts
The elastic pressuring plate 8 of flexible fastening piece 5, mobile eyeglass 3 are square, the size of transparent panel 1 and backboard 2 and with 5 × 7 gusts
The size of 35 mobile eyeglasses of row arrangement is corresponding.The back side of transparent panel 1 is coated with one layer of semi-transparent reflective membrane 11, semi-transparent
The surface of reflective membrane 11 is coated with 12,48 supporting pin 4 of layer of transparent layer and is arranged in 6 × 8 dot-matrix array and is vertically mounted on
The back side of bright panel 1, the front end of supporting pin 4 and clear layer bonding, in the space that four neighbouring supporting pins are surrounded respectively
A mobile eyeglass is placed, i.e., there are a supporting pin, and mobile 3 court of eyeglass in the corresponding outside in four angles that eyeglass is moved per piece
It is one layer of reflector layer 31 to the one side of transparent panel 1, the mobile reflector layer 31 of eyeglass 3 and the clear layer 12 of transparent panel 1 are contacted,
Four corners at mobile 3 back side of eyeglass are arranged to chamfering 32, are coated with conductive layer in mobile 3 back side of eyeglass and chamfering 32.Elasticity
Tabletting 8 is sleeved on the middle part of supporting pin 4 and bonds with supporting pin 4, and the material of elastic pressuring plate is metal material, conducting polymer material
Material or surface are coated with the polymeric material of metal conductive film, and elastic pressuring plate 8 has four tongues 81 for stretching out to four direction respectively,
Two tongues 81 of front side are turned on, and two tongues 81 of rear side are turned on, and reticle mask makes the tongue of the tongue 81 and rear side of front side
Insulate between 81.Two tongues 81 on front side of elastic pressuring plate 8 are connected with the chamfering 32 of front-seat two adjacent mobile eyeglasses 3, bullet
The chamfering 32 of the two adjacent mobile eyeglasses 3 of two tongues 81 and heel row on rear side of property tabletting 8 is connected, and makes the moving lens of same row
The back side of piece 3 connects to form strip shaped electric poles by circuit, and between the mobile eyeglass 3 of adjacent row, mutual insulating, i.e. elastic pressuring plate be both
Fixation is played to mobile eyeglass circuit interconnection function is played to mobile eyeglass again, make the mobile eyeglass arranged with 5 × 7 arrays
The back side formed 5 with arrange setting direction one to strip shaped electric poles.Display module is backmost backboard 2, has and support on backboard
One-to-one installing hole is sold, installing hole is enclosed within supporting pin and bonds with supporting pin, backboard is arranged in supporting pin, and carry on the back
Have the one of electrode on plate 2 facing to moving lens piece 3, between backboard and mobile eyeglass, have certain spacing, make to move eyeglass has can
Mobile space.Electrode on backboard 2 in strip-like-shaped electrode 21 into strips, the setting direction of the strip shaped electric poles 21 on backboard 2 and
The setting direction of the strip shaped electric poles that mobile 3 back side of eyeglass is formed is perpendicular, and one layer of insulation is coated with the strip shaped electric poles of backboard 2
Layer, it is to avoid mobile eyeglass and backboard occur conducting when contacting, what the strip shaped electric poles 21 and mobile 3 back side of eyeglass on backboard 3 were formed
Strip shaped electric poles are connected with the passive-matrix drive circuit outside display module respectively.The sky that transparent panel and backboard are surrounded
Between surrounding be packaged to form with fine globality display module.
Embodiment 3：The big pixel bi-stable display module of color reflective formula of the present embodiment, as shown in Figure 8, Figure 9, including one
1, backboard 2 of individual transparent panel, 15 mobile eyeglasses, 3,23 supporting pins 4 for being arranged in seven segment numerical tubular construction and 23 works
For the elastic pressuring plate 8 of flexible fastening piece 5, wherein each two movement eyeglass is combined into one section, i.e., 14 in seven segment numerical tubular construction
Mobile eyeglass is combined into seven sections in seven segment numerical tubular construction, and another movement eyeglass is used as arithmetic point.Transparent panel 1 and backboard
2 size is corresponding with the size of 15 mobile eyeglasses for being arranged in seven segment numerical tubular construction.The back of the body of transparent panel 1
Face is coated with one layer of semi-transparent reflective membrane 11, and the surface of semi-transparent reflective membrane 11 is coated with layer of transparent layer 12, and mobile eyeglass 3 is square
The pentagon being connected with triangle, moves per piece outside two right angles of eyeglass and has one outside a vertex angle
Support 4,23 supporting pins of pin are vertically mounted on the back side of transparent panel 1,12 bonding of front end and clear layer of supporting pin 4, moving lens
Piece 3 is one layer of reflector layer 31 towards the one side of transparent panel 1, the clear layer 12 of the reflector layer 31 and transparent panel 1 of mobile eyeglass 3
Contact.It is arranged to chamfering 32, mobile 3 back side of eyeglass and chamfering at two right angles and a vertex angle of mobile back lens surface
Conductive layer is coated with 32.Elastic pressuring plate 8 is sleeved on the middle part of supporting pin 4 and bonds with supporting pin 4, and the material of elastic pressuring plate is gold
Category material, conducting polymer composite or surface are coated with the polymeric material of metal conductive film, and elastic pressuring plate 8 is stretched out towards different directions
There are four tongues 81, the tongue 81 on elastic pressuring plate 8 is connected with the chamfering 32 of the mobile eyeglass 3 around which respectively, elasticity
Tabletting had not only played fixation to mobile eyeglass but also had played circuit interconnection function to mobile eyeglass, made 15 to be arranged in seven segment numerical
The back side of the mobile eyeglass 3 of tubular construction is linked to be a public electrode.There is a support frame 9 around 1 behind of transparent panel,
Support frame 9 is trapped among the periphery of the mobile eyeglass 3 for being arranged in seven segment numerical tubular construction, and the height of support frame 9 is more than moving lens
The thickness of piece 3.Display module is backmost backboard 2, and backboard 2 is arranged in support frame 9, and has the one of electrode on backboard 2
Facing to mobile eyeglass 3, between backboard and mobile eyeglass, there is certain spacing, making to move eyeglass has moveable space.Backboard 2
On electrode have eight, eight electrodes 22 are corresponding with the seven segment numerical tubular construction of mobile eyeglass 3, and eight electrodes 22 respectively lead to
The contact conductor 23 formed by conducting film, is coated with a layer insulating on eight electrodes of backboard 2 and contact conductor, it is to avoid mobile
There is conducting when contacting in eyeglass and backboard, also have a public pole patchboard 24, public pole patchboard 24 and carriage on backboard 2
Frame 9 is corresponding, after backboard 2 is installed in support frame 9, tongue 81 on the elastic pressuring plate 8 adjacent with support frame 9 and public
Pole patchboard 24 is connected, that is, the public electrode for moving 3 back side of eyeglass is connected with the public pole patchboard 24 on backboard 2, on backboard 2
Eight contact conductors 23 and public pole patchboard 24 be connected with the direct driving circuit outside display module respectively.It is transparent
The surrounding in the space that panel and backboard are surrounded is packaged to form with fine globality display module.
In the present invention, the FPI that pixel is consisted of the reflector layer on the semi-transparent reflective membrane on transparent panel and mobile eyeglass
The interference of light produces color.The signal that drive circuit is formed applies electricity between flexible fastening piece and back plate electrode by circuit connection
Pressure, makes to move eyeglass along moving perpendicular to the direction of transparent panel, is abreast zoomed in or out backboard, so as to change half transflection
The distance between light film and reflector layer, that is, change the distance between two interference surfaces, realizes the picture corresponding with each movement eyeglass
The color change of element.In the present invention, priming color is determined by the thickness for being covered in clear layer on semi-transparent reflective membrane, original state
When, reflector layer and clear layer are completely attached to, and are adjusted the thickness of clear layer, that is, are adjusted the original state of semi-transparent reflective membrane and reflector layer
Spacing, as shown in figure 1, at this moment be the first stable state.Contrast color is controlled by drive circuit, in the control of drive circuit
Under, make to move eyeglass and leave its home position and draw close backboard, as shown in Fig. 2 so as to change the distance between interference of light face, this
When be the second stable state.The color that pixel shows when mobile eyeglass can certainly be abutted backboard is used as priming color, moving lens
The color that shows of pixel color as a comparison when the reflector layer of piece abuts clear layer.Therefore, in display module, each pixel can be with
Show two kinds of colors, i.e. bistable state.The thickness of clear layer determines the color of the first stable state, and mobile eyeglass abuts reflective during backboard
The distance between layer and semi-transparent reflective membrane determine the color of the second stable state.Therefore, each pixel in display module can
Realize predetermined two kinds of contrasting colors, thus can pass through module on pixel color contrast combine display digit,
Letter, word or pattern, or as embodiment 3 is arranged the display for realizing numeral by 7 segment numeral tubular constructions.Multiple display modules are arranged
Row are assembled into a complete display floater, so that it may show the information being made up of numeral, letter, word and pattern, become family
Outer billboard or other industrial information display boards.
Present configuration is simple, easy to make, avoids the photoetching in MEMS processing and fabricatings and etching procedure, and adopts city
Existing common material on field, it is using circuit board processing and fabricating and other common processing technique, cheap for manufacturing cost, drop significantly
The threshold in low entrance market, is that solid foundation is established in the development of high-resolution display in future thin film.And power consumption is extremely low, dynamic
Below driving energy consumption during display two orders of magnitude that also simply tradition shows, therefore which can be powered using solar energy, greatly
Big energy saving, while with the superior function under outdoor high light, it is very strong to the adaptability of climate temperature condition.
Claims (10)
1. the big pixel bi-stable display module of a kind of color reflective formula, it is characterised in that including transparent panel (1), backboard (2) if,
Dry mobile eyeglass (3), supporting pin (4) and the flexible fastening piece with electric conductivity (5), the back side of described transparent panel (1) sets
Have one layer of semi-transparent reflective membrane (11), the surface of semi-transparent reflective membrane (11) is coated with layer of transparent layer (12), described backboard (2) and
Described transparent panel (1) is corresponding, the transparent panel (1) and backboard (2) described in described supporting pin (4) connection, described
Backboard (2) is provided with some electrodes towards the one side of transparent panel (1), and described mobile eyeglass (3) is positioned at transparent panel (1) and the back of the body
Between plate (2), mobile eyeglass (3) is provided with one layer of reflector layer (31), described flexible fastening piece towards the one side of transparent panel (1)
(5) clear layer (12) or described flexible fastening piece (5) the connection moving lens of mobile eyeglass (3) and transparent panel (1) are connected
Piece (3) and supporting pin (4), the spacing between backboard (2) and described clear layer (12) are moved more than the thickness of mobile eyeglass (3)
The clear layer (12) of the reflector layer (31) and transparent panel (1) of index glass piece (3) contacts or mobile eyeglass (3) and backboard (2)
Contact, the electrode on flexible fastening piece (5), backboard (2) is connected with the drive circuit being located at outside display module respectively.
2. the big pixel bi-stable display module of color reflective formula according to claim 1, it is characterised in that described movement
Plural support column (6) is provided with around eyeglass (3), support column (6) and described transparent panel (1) are vertical, support column
(6) front end is connected with the clear layer (12) of transparent panel (1), the front end of the rear end of support column (6) and described supporting pin (4)
It is connected, described flexible fastening piece (5) is connected between the rear end of mobile eyeglass (3) and support column (6), described backboard (2)
It is connected with described supporting pin (4).
3. the big pixel bi-stable display module of color reflective formula according to claim 1, it is characterised in that described backboard
(2) layer insulating is coated with electrode.
4. the big pixel bi-stable display module of color reflective formula according to claim 1 or 2 or 3, it is characterised in that described
Mobile eyeglass (3) reflector layer (31) on scribble one layer of polymeric thin film, reflector layer (31) table is pressed together on by soft or hard face
Face formed a layer thickness differ to polymer film layer (32), the thickness of polymer film layer (32) is anti-with mobile eyeglass (3)
The fluctuating on photosphere (31) surface is offset, and described semi-transparent reflective membrane (11) and reflector layer (31) are opposing parallel.
5. the big pixel bi-stable display module of color reflective formula according to claim 2, it is characterised in that described elasticity
Fixture (5) is the elastic film layer (7) corresponding with described transparent panel (1), and elastic film layer (7) is by cutting segmentation
Into some groups of movements eyeglass film layer (71), support column film layer (72) and resilient braces (73), move eyeglass film layer (71) four
Corner is respectively connected with the resilient brace described in (73), mobile eyeglass film layer (71) of resilient brace (73) connection and support column film
The back adhesive of layer (72), mobile eyeglass film layer (71) and described mobile eyeglass (3), support column film layer (72) and described props up
The rear end face bonding of dagger (6), support column film layer (72) are provided with a through hole (74) that may pass through described supporting pin (4).
6. the big pixel bi-stable display module of color reflective formula according to claim 5, it is characterised in that and each movement
Described electrode is respectively provided with corresponding backboard (2) region of eyeglass (3), described elastic film layer (7) forms mobile eyeglass (3)
The electrode at the back side, the active moved the electrode on the electrode and backboard (2) at eyeglass (3) back side respectively and be located at outside display module
Matrix driving circuit is connected.
7. the big pixel bi-stable display module of color reflective formula according to claim 1, it is characterised in that described elasticity
Fixture (5) is elastic pressuring plate (8), and elastic pressuring plate (8) is sleeved on the middle part of supporting pin (4) and bonds with supporting pin (4), elasticity
Tabletting (8) has four tongues (81) for stretching out to four direction respectively, two tongue (81) conductings of front side, two tongues of rear side
Head (81) conducting, reticle mask make front side tongue (81) and the tongue (81) of rear side between insulation；Described mobile eyeglass (3)
Four corners at the back side are provided with chamfering (32), are coated with conductive layer, elastic pressuring plate in mobile eyeglass (3) back side and chamfering (32)
(8) two tongues (81) on front side of are connected with the chamfering (32) of front-seat two adjacent mobile eyeglasses (3), after elastic pressuring plate (8)
The chamfering (32) of the adjacent mobile eyeglass (3) of two tongues (81) and the heel row two of side is connected, and makes the mobile eyeglass of same row
(3) the back side connects to form strip shaped electric poles by circuit, mutual insulating between the mobile eyeglass (3) of adjacent row.
8. the big pixel bi-stable display module of color reflective formula according to claim 7, it is characterised in that described backboard
(2) electrode on is in strip-like-shaped electrode (21), the setting direction of the strip shaped electric poles (21) on backboard (2) and described shifting into strips
The setting direction of the strip shaped electric poles that index glass piece (3) back side is formed is perpendicular, the strip shaped electric poles (21) and mobile eyeglass on backboard (3)
(3) strip shaped electric poles that the back side is formed are connected with the passive-matrix drive circuit being located at outside display module respectively.
9. the big pixel bi-stable display module of color reflective formula according to claim 1, it is characterised in that described elasticity
Fixture (5) is elastic pressuring plate (8), and elastic pressuring plate (8) is sleeved on the middle part of supporting pin (4) and bonds with supporting pin (4), elasticity
Tabletting (8) is extended with plural tongue (81), and described mobile eyeglass (3) is arranged in seven segment numerical tubular construction, described
The back side of mobile eyeglass (3) is provided with chamfering (32), is coated with conductive layer, elastic pressuring plate in mobile eyeglass (3) back side and chamfering (32)
(8) tongue (81) on is connected with the chamfering (32) of the mobile eyeglass (3) around which respectively, makes to be arranged in seven segment digital tubes
The back side of the mobile eyeglass (3) of structure is linked to be a public electrode.
10. the big pixel bi-stable display module of color reflective formula according to claim 9, it is characterised in that described is transparent
Support frame (9) is provided with around panel (1) behind, support frame (9) surrounds the moving lens for being arranged in seven segment numerical tubular construction
Piece (3), the height of support frame (9) are more than the thickness of mobile eyeglass (3)；Electrode on described backboard (2) has eight, eight
Electrode (22) is corresponding with the seven segment numerical tubular construction of mobile eyeglass (3), and eight electrodes (22) respectively lead to and formed by conducting film
Contact conductor (23), on backboard (2) also have a public pole patchboard (24), public pole patchboard (24) and support frame
(9) it is corresponding, described backboard (2) in described support frame (9), the elastic pressuring plate adjacent with support frame (9)
(8) tongue (81) on is connected with described public pole patchboard (24), that is, move the public electrode and backboard at eyeglass (3) back side
(2) the public pole patchboard (24) on is connected, and eight contact conductors (23) and public pole patchboard (24) on backboard (2) are respectively
It is connected with the direct driving circuit being located at outside display module.
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| CN107167915A (en) * | 2017-05-17 | 2017-09-15 | 杭州元色科技有限公司 | Ambient light interference formula colourful transparent display module and Transparence Display method |
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| CN106531001B (en) | 2019-01-25 |
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