CN107195248B - Optical module and display device - Google Patents
Optical module and display device Download PDFInfo
- Publication number
- CN107195248B CN107195248B CN201710597160.2A CN201710597160A CN107195248B CN 107195248 B CN107195248 B CN 107195248B CN 201710597160 A CN201710597160 A CN 201710597160A CN 107195248 B CN107195248 B CN 107195248B
- Authority
- CN
- China
- Prior art keywords
- light
- incidence surface
- guide plate
- display device
- emitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a kind of optical modules and a kind of display device.Optical module includes light guide plate, birefringent substrate and at least one light-emitting component, light guide plate has the first incidence surface, light-emitting surface and at least one second incidence surface, first incidence surface and light-emitting surface are oppositely arranged, second incidence surface is arranged between the first incidence surface and light-emitting surface, at least one second incidence surface is corresponding with light-emitting component, and birefringent substrate is oppositely arranged with light-emitting surface；Light-emitting component selectively towards with its corresponding to the second incidence surface issue the first light, and, light guide plate can reflect the first light on the second incidence surface for being at least partially illuminated in light guide plate, so that the first light is projected from light guide plate, and enter birefringent substrate, and the refractive index of birefringent substrate is greater than or equal to the refractive index of light guide plate.Optical module of the invention may be implemented to switch under peep-proof mode and normal displaying mode, promote peep-proof effect.
Description
Technical field
The present invention relates to field of display technology, and in particular to a kind of optical module and a kind of display including the optical module
Device.
Background technique
Traditional, with becoming increasingly popular for the mobile display product of commercial affairs, the mobile office based on display product becomes one
Kind new trend bring information stealth and pries through problem by growing interest therewith.
In order to solve the problems, such as above-mentioned peep-proof, in field of liquid crystal display, generally increase peep-proof in the light emission side of display device
Piece, peep-proof principle is mainly to change the angle of divergence for the emergent ray that the display device light emission side is issued, also that is, changing
Become the light transmission state of peep-proof piece.
Obviously, traditional peep-proof piece, by the light transmission state of change peep-proof piece, thus change the angle of divergence of emergent ray,
Can not angle, direction etc. to the angle of divergence control effectively.The peep-proof piece of the structure can't be realized in peep-proof
It is switched between mode state and normal displaying mode.
Therefore, a kind of novel optical module how is designed, effective control can be able to carry out to peep-proof visual angle, direction
It is made for this field technical problem urgently to be resolved.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art, a kind of optical module and one are proposed
Kind includes the display device of the optical module.
To achieve the goals above, the first aspect of the present invention, provides a kind of optical module, and the optical module includes leading
Tabula rasa, birefringent substrate and at least one light-emitting component, the light guide plate have the first incidence surface, light-emitting surface and at least one
Second incidence surface, first incidence surface and the light-emitting surface are oppositely arranged, and the second incidence surface setting enters described first
Between smooth surface and the light-emitting surface, at least one described second incidence surface is corresponding with the light-emitting component, the birefringent substrate with
The light-emitting surface is oppositely arranged；
The light-emitting component selectively towards with its corresponding to second incidence surface issue the first light, also,
The light guide plate can reflect the first light on the first incidence surface for being at least partially illuminated in the light guide plate, so that
It obtains first light to project from the light guide plate, and enters the birefringent substrate, and the refractive index of the birefringent substrate is greater than
Or the refractive index equal to the light guide plate.
Preferably, the light guide plate has multiple second incidence surfaces, and the optical module includes multiple described luminous
Element, each second incidence surface are corresponding with the light-emitting component.
Preferably, the light-emitting component includes LED light bar.
Preferably, the birefringent substrate includes underlay substrate and multiple refractions for being arranged in the underlay substrate
Grain, the underlay substrate are bonded with the light-emitting surface.
Preferably, at least partly described refractive particles protrude from the side towards the light-emitting surface of the underlay substrate
Surface.
Preferably, the underlay substrate includes the first underlay substrate and the second underlay substrate being stacked, and described second
Underlay substrate is arranged between first underlay substrate and the light-emitting surface, and second underlay substrate and the light-emitting surface paste
It closes, first underlay substrate and second underlay substrate are made of resin material, setting in second underlay substrate
There are multiple refractive particles.
Preferably, second underlay substrate with a thickness of 13-15 μm, the partial sizes of the refractive particles is 5-7 μm.
Preferably, the optical module further includes driving circuit, and the driving circuit is electrically connected with the light-emitting component, institute
Driving circuit is stated to drive the light-emitting component to shine.
The second aspect of the present invention, provides a kind of display device, and the display device includes display panel and optics group
Part, the optical module include the optical module recorded above, and the optical module is located at going out for the display panel
Light side, and the light guide plate, between the display panel and the birefringent substrate, the display panel is for providing second
Light, first incidence surface is for receiving second light.
Preferably, the display device further includes backlight module, and what the backlight module was located at the display panel enters light
Side, the optical module are arranged in the light emission side of the backlight module, and be located at the backlight module and the display panel it
Between, the backlight module is for providing the second light, and first incidence surface is for receiving second light.
Optical module of the invention, when being applied in the product having a display function such as display device, Ke Yishi
Existing peep-proof function, meanwhile, the change of light-emitting component luminance is controlled, can also be realized in peep-proof mode and normal displaying mode
Under switch over.Secondly, the peep-proof piece relative to traditional structure, the optical module of the structure can make the brightness of display device
It significantly improves, improves peep-proof effect, effective protection privacy of user.
Display device of the invention, the structure with above-mentioned optical module, it is thereby achieved that peep-proof function, meanwhile, control
The change of light-emitting component luminance processed, it is also possible that the display device is cut under peep-proof mode and normal displaying mode
It changes.Secondly, relative to the peep-proof piece that traditional structure is arranged on the display apparatus, the optical module of the structure can make display fill
The brightness set significantly improves, and improves peep-proof effect, effective protection privacy of user.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of optical module in first embodiment of the invention；
Fig. 2 is optical module in second embodiment of the invention in normal displaying mode working principle diagram；
Fig. 3 is optical module in third embodiment of the invention in unilateral peep-proof mode working principle diagram；
Fig. 4 is optical module in fourth embodiment of the invention in more side peep-proof mode working principle diagrams；
Fig. 5 be fifth embodiment of the invention in optical module under normal displaying mode system brightness with angular distribution figure；
Fig. 6 be sixth embodiment of the invention in optical module under unilateral peep-proof mode system brightness with angular distribution figure；
Fig. 7 be seventh embodiment of the invention in optical module under more side peep-proof modes system brightness with angular distribution figure.
Description of symbols
100: optical module；
110: light guide plate；
111: the first incidence surfaces；
112: light-emitting surface；
113: the second incidence surfaces；
120: birefringent substrate；
130: light-emitting component；
200: display device；
210: display panel.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
With reference to Fig. 1, the first aspect of the present invention is related to a kind of optical module 100, the optical module 100 be applied to it is all
When on such as product having a display function of display device 200, there is peep-proof function.The optical module 100 includes light guide plate
110, which has the first incidence surface 111 and light-emitting surface 112 being oppositely arranged, that is to say, that as shown in Figure 1, light out
Face 112 can be located at the upper surface of light guide plate 110, and correspondingly, the first incidence surface 111 is the lower surface of the light guide plate 110.When
So, the first incidence surface 111 and light-emitting surface 112 can also be in other positions with respect to the light guide plate 110, for example, being in the leaded light
On opposite two side of plate 110 etc..
Wherein, above-mentioned light guide plate 110 also has at least one second incidence surface 113, and the second incidence surface 113 is arranged first
Between incidence surface 111 and light-emitting surface 112, that is to say, that as shown in Figure 1, second incidence surface 113 is equivalent to light guide plate 110
Position where side.
Wherein, above-mentioned optical module 100 further includes the birefringent substrate 120 and at least one light-emitting component 130 of light transmission, at least
One the second incidence surface 113 is corresponding with light-emitting component 130, and light-emitting component 130 can selectively towards with its corresponding to
Second incidence surface 113 issues the first light, as shown in dotted line in Fig. 3 and Fig. 4.
Above-mentioned light guide plate 110 can be to first on the second incidence surface 113 for being at least partially illuminated in the light guide plate 110
Light is reflected, so that the first light is projected from light guide plate 110, and enters birefringent substrate 120.Wherein, birefringent substrate 120
Refractive index be greater than or equal to light guide plate 110 refractive index.
For ease of description, it is illustrated for the optical module 100 of the structure is applied to display device 200.Tool
Body, the optical module 100 of the structure can be arranged in the light emission side of display device 200, in this way, display device 200 goes out
Several second light that light side is issued can be by the first incidence surface 111 to light-emitting surface 112, and first light is through superrefraction later
Substrate 120 on the surface of the birefringent substrate 120 to realize that normal pictures are shown, that is to say, that second light is equivalent to aobvious
The display light that showing device 200 is issued, correspondingly, the first light that light-emitting component 130 issues are equivalent to peep-proof (or interference)
Light.
As shown in Figure 3 and Figure 4, " √ " therein indicates that user can watch the picture of 200 actual displayed of display device,
"×" therein indicates that user can not watch the picture of 200 actual displayed of display device.When needing peep-proof mode, user
The light-emitting component 130 that can control in the optical module 100 is in open state so that light-emitting component 130 towards with its corresponding to
The second incidence surface 113 issue the first light (dotted line in figure), which just reflects in light guide plate 110, finally
It has some light to be reflected on the top to birefringent substrate 120 of light guide plate 110, since the refractive index of birefringent substrate 120 is greater than
Or the refractive index equal to light guide plate 110, therefore, first light of part is just with the biggish angle of emergence (that is, off-normal
Direction) it is emitted from the surface of birefringent substrate 120, so that the display of the display device 200 under the angle of emergence is bright
Degree is remarkably reinforced.Therefore, when peeping user and watching the display device 200 with the angle, due to the display device at the angle
The display brightness of 200 displays is remarkably reinforced, and has been more than user's human eye limit of resolution, peeping user so as to cause this can not watch
Picture shown by 200 reality of display device, and then peep-proof function may be implemented.
As shown in Fig. 2, user only needs to control all light-emitting components 130 and is in closing when not needing peep-proof mode
State.
It should be understood that the above-mentioned angle of emergence can be a specific numerical value, it is also possible in a certain angle model
Interior value is enclosed, can be determined according to actual needs, that is to say, that it is determined according to required peep-proof visual angle,
For example, the angle can be arranged at 30-35 °.
Therefore, the optical module 100 of the present embodiment structure, it is equal with display function being applied to display device 200
Product in when, peep-proof function may be implemented, meanwhile, control the change of 130 luminance of light-emitting component, can also realize anti-
It peeps between under mode and normal displaying mode and switches over.Secondly, the peep-proof piece relative to traditional structure, the optics group of the structure
Part 100 can make the brightness of display device 200 significantly improve, and improve peep-proof effect, effective protection privacy of user.
Shown in as shown in Figure 1, Figure 3 and Figure 4, in order to further improve peep-proof effect.Above-mentioned light guide plate 110 has multiple second
Incidence surface 113, optical module 100 include a plurality of light-emitting elements 130, and each second incidence surface 113 is corresponding with light-emitting component
130。
By there are two be illustrated for light-emitting component 130 for setting on the light guide plate 110.As shown in figure 3, when user is uncommon
When the display device 200 for hoping it utilize realizes right side (i.e. right direction in Fig. 3) peep-proof, only need to control left side second enters
Light-emitting component 130 corresponding to smooth surface 113 is in the open state, that is to say, that can be towards second incidence surface
113 issue the first above-mentioned light.
The index path of above-mentioned first light can with reference to shown in Fig. 3, specifically, as seen from Figure 3, the first light according to
It is secondary to refract to inside light guide plate 110, it is totally reflected inside light guide plate 110, finally, the first light of part can reflex to out light
Face 112, at this point, birefringent substrate 120 can receive first light of part, since the refractive index of birefringent substrate 120 is greater than or waits
In the refractive index of light guide plate 110, so as to which total reflection condition of first light of part in light guide plate 110 is destroyed.
That is first light of part (can be equivalent to the biggish right side for being emitted the angular display device 200 and issue the first light
The opposite side of the light-emitting component 130 of line) outgoing.Specifically, the brightness of display device 200 and user watch the display device 200
Relationship between angle can refer to Fig. 6, as seen from Figure 6, when watching the display device 200 in 40 ° or more of angles,
The display brightness of the display device 200 is remarkably reinforced, and masks the luminous brightness of 200 displayed image of display device,
The 200 actual display picture of institute of display device can not be watched so as to cause in the user of angle viewing display device 200, into
And the function of right side dazzle peep-proof may be implemented.
Correspondingly, when user wishes only to need to control left and right two when peep-proof is realized in the left and right sides of display device 200
The light-emitting component 130 of side is opened, and specifically the index path of the first light can be with reference to shown in Fig. 4.In addition, concrete principle with
Realize that right side dazzle peep-proof function is identical, therefore not to repeat here.Realize the brightness and angle of the display device 200 of peep-proof in the two sides
Between relationship can refer to Fig. 7.
Secondly, the optical module 100 of this implementation structure can also realize multidimensional peep-proof.That is, not only can be real
Now such as the left and right directions realization peep-proof in Fig. 3, it can also realize that front-rear direction as shown in figure 1 realizes peep-proof, it can realize two
Tie up the peep-proof on four direction.Work as needs, when peep-proof is realized in front and back, as long as control in the front-back direction the second incidence surface 113 pair
The light-emitting component 130 answered is opened, and specifically peep-proof principle can be with reference to associated description above, and therefore not to repeat here.
In addition, can control all light-emitting components 130 when not needing peep-proof function, being at closed state i.e.
Can, correspondingly, the relationship between the brightness and angle of the display device 200 under normal displaying mode can refer to Fig. 5.
Therefore, the optical module 100 of the present embodiment structure, not only may be implemented in peep-proof mode and normal displaying mode
Between switch over, can also realize the peep-proof on two-dimentional four direction, peep-proof effect can be made better, so as to
Preferably protect the privacy of user.
In order to further improve peep-proof effect, light-emitting component 130 includes LED light bar, can issue white light, meanwhile,
Using birefringent substrate 120 and light guide plate 110, which can be emitted with the big angle of emergence, can further improved
The brightness of 200 emergent light of display device, so as to cover the image information that display device is really shown, so that
Peep-proof effect is better.
Connection relationship between LED light bar and the second incidence surface 113 is not defined.For example, the LED light bar
It can be directly installed at the second corresponding incidence surface 113.Certainly, which can also be put using other fixed devices
It sets at the position opposite with the second incidence surface 113.
Preferably, above-mentioned birefringent substrate 120 includes underlay substrate (not showing that in figure) and is arranged in underlay substrate
Multiple refractive particles (not showed that in figure), underlay substrate is bonded with light-emitting surface 112.
The optical module 100 of the present embodiment structure is provided with multiple refractive particles in underlay substrate, when the first light is being led
When the light-emitting surface 112 of tabula rasa 110 is incident on underlay substrate, acted on by the pattern of refractive particles, the first light is via refraction
The reflection of particle surface, reflected light individual 110 upper surface angle of reflection of light guide plate compared with normal angle become smaller, so refraction base
Refractive particles in plate 120 can destroy total reflection condition of the first light of LED light bar sending in light guide plate 110, make LED light
The first light that item is issued changes the reflection angle in 110 upside of light guide plate, to allow light with the biggish angle of emergence
The outside of the birefringent substrate 120 is reflected, as shown in Figure 3, Figure 4.Therefore, it can further improve using the optical module
The peep-proof effect of the equal display product of 100 display device 200, protects privacy of user.
How with the realization of light-emitting surface 112 to be bonded and do not define as underlay substrate, for example, the underlay substrate can be with
It is fixed on the light-emitting surface 112 of light guide plate 110 using OCA (Optically Clear Adhesive) glue laminating mode.Certainly,
It can also be using other fixed forms between underlay substrate and the light-emitting surface 112 of light guide plate 110.
Underlay substrate is bonded, on the one hand, can reduce whole by the optical module 100 of the present embodiment structure with light-emitting surface 112
The thickness of a optical module 100, so that will not using 200 thickness of display device of the optical module 100 of the structure
It obviously increases, does not influence user experience.On the other hand, it is bonded due to underlay substrate with light-emitting surface 112, when there is the first light
When at line reflection to interface (interface between light guide plate 110 and underlay substrate), the refractive particles in underlay substrate can be broken
The total reflection condition of bad first light of part, so that second light of part reflects this with the biggish angle of emergence
The outside of birefringent substrate 120, and then peep-proof effect may be implemented, improve peep-proof performance.
It should be understood that above-mentioned birefringent substrate 120 and light guide plate 110 can also be integrally formed, that is to say, that Ke Yi
The upper surface of light guide plate 110 directly forms the birefringent substrate 120, forms the functional film layer of an entirety.
Preferably, in order to further improve peep-proof effect, at least partly refractive particles protrude from underlay substrate
Towards the surface of the side of light-emitting surface 112.
Preferably, above-mentioned underlay substrate includes the first underlay substrate (not showing that in figure) and the second substrate being stacked
Substrate (does not show that) that the second underlay substrate is arranged between the first underlay substrate and light-emitting surface 112, the second underlay substrate in figure
It is bonded with light-emitting surface 112, the first underlay substrate and the second underlay substrate can have resin material to be made, for example, the first substrate
Substrate can be made and be formed by poly terephthalic acid class (PET, Polyethylene terephthalate) material, the second substrate
Substrate can use resin material and make to form resinous coat.Wherein, multiple refractive particles are provided in the second underlay substrate.
The optical module 100 of the present embodiment structure, the first underlay substrate therein are formed as made by PET material, therefore,
It, will not be to the emergent light that display device is issued when the light emission side of display device is arranged in the optical module 100 of the structure
Line (namely the second light received by the first incidence surface 111 of light guide plate 110, such as the solid line in Fig. 2, Fig. 3 and Fig. 4) is made
At interference, therefore, picture when user watches the display device 200 with main perspective is not influenced and is shown, do not influence user and watch effect
Fruit.In addition, forming resinous coat on the surface of the first underlay substrate, multiple refractive particles are evenly distributed in the resinous coat,
Multiple refractive particles influence the propagation path of the first light, that is, change the optical path of the first light, so as to realize peep-proof
Effect, structure are simple.
Preferably, in order to further improve peep-proof effect, the thickness of the second underlay substrate can be 13-15 μm, refraction
The partial size of particle can be 5-7 μm.
Material and thickness for light guide plate 110 do not define, for example, it can be using organic glass
(Polymethylmethacrylate, PMMA) is made to be formed, the made light guide plate 110 formed of the structure, directional light
Transmitance is about 93% or so.In addition, can be 0.6mm, certainly, the thickness of light guide plate 110 as the thickness of the light guide plate 110
Degree or other values, are not limited thereto.
Preferably, above-mentioned optical module 100 further includes driving circuit (not showing that in figure), driving circuit and light-emitting component
130 electrical connections, driving circuit is to drive light-emitting component 130 to shine, that is to say, that control light-emitting component 130 is in opening state
State or closed state.
The optical module 100 of the present embodiment structure, is provided with driving circuit, can be shone to each using the driving circuit
The luminance of element 130 is controlled, so as to carry out peep-proof on different dimensions, different directions by user's selection, or
Person can also utilize the driving circuit, switch between peep-proof mode and normal displaying mode.
The second aspect of the present invention, provides a kind of display device 200, and display device 200 includes display panel 210 and light
Component 100 is learned, optical module 100 includes the optical module 100 recorded above, and optical module 100 is located at display panel 210
Light emission side, and light guide plate 110, between display panel 210 and birefringent substrate 120, display panel 210 is for providing the second light
Line, as shown in solid in Fig. 2, Fig. 3 and Fig. 4, the first incidence surface 111 of light guide plate 110 can receive second light.
The display device 200 of the present embodiment structure has the structure for the optical module 100 recorded above, therefore, Ke Yishi
Existing peep-proof function, specifically peep-proof principle, can refer to and record above, therefore not to repeat here.Meanwhile controlling light-emitting component 130
The change of luminance, it is also possible that the display device 200 switches under peep-proof mode and normal displaying mode.Its
Secondary, relative to the peep-proof piece that traditional structure is arranged on a display device 200, the optical module 100 of the structure can to show
The brightness of device 200 significantly improves, and improves peep-proof effect, effective protection privacy of user.
Preferably, display device 200 further includes backlight module (not showing that in figure), and backlight module is located at display panel
210 incident side, optical module 100 are arranged in the light emission side of backlight module, and be located at backlight module and display panel 210 it
Between, at this point, backlight module may be used to provide the second light, the first incidence surface 111 of light guide plate 110 can receive second light
Line.
The display device 200 of the present embodiment structure is another set-up mode of above-mentioned optical module 100, that is,
It says, as long as guaranteeing that optical module 100 is located at the light emission side of display device 200, the including but not limited to above-mentioned backlight enumerated
The light emission side of mould group, the light emission side etc. of display panel 210.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (8)
1. a kind of display device, which is characterized in that the display device includes display panel and optical module, the optical module
Positioned at the light emission side of the display panel, the optical module includes light guide plate, birefringent substrate and at least one light-emitting component,
The light guide plate has the first incidence surface, light-emitting surface and at least between the display panel and the birefringent substrate
One the second incidence surface, first incidence surface and the light-emitting surface are oppositely arranged, and second incidence surface setting is described the
Between one incidence surface and the light-emitting surface, at least one described second incidence surface is corresponding with the light-emitting component, the refraction base
Plate is oppositely arranged with the light-emitting surface；The light-emitting component selectively towards with its corresponding to second incidence surface issue
First light, also, the light guide plate can be to the first light on the second incidence surface for being at least partially illuminated in the light guide plate
Line is reflected, so that first light is projected from the light guide plate, and enters the birefringent substrate, and the refraction base
The refractive index of plate is less than or equal to the refractive index of the light guide plate；The display panel for provide the second light, described first
Incidence surface is for receiving second light；
Alternatively, the display device includes display panel, backlight module and optical module, the backlight module is located at the display
The incident side of panel, the optical module are arranged in the light emission side of the backlight module, and are located at the backlight module and described
Between display panel, the optical module includes light guide plate, birefringent substrate and at least one light-emitting component, the light guide plate tool
There are the first incidence surface, light-emitting surface and at least one second incidence surface, first incidence surface and the light-emitting surface are oppositely arranged,
Second incidence surface is arranged between first incidence surface and the light-emitting surface, at least one described second incidence surface is corresponding
There is the light-emitting component, the birefringent substrate is oppositely arranged with the light-emitting surface；The light-emitting component selectively towards and its
Corresponding second incidence surface issues the first light, also, the light guide plate can be to being at least partially illuminated in described lead
The first light on second incidence surface of tabula rasa is reflected, so that first light is projected from the light guide plate, is gone forward side by side
Enter the birefringent substrate, and the refractive index of the birefringent substrate is less than or equal to the refractive index of the light guide plate；The backlight mould
Group is for providing the second light, and first incidence surface is for receiving second light.
2. display device according to claim 1, which is characterized in that the light guide plate has multiple described second to enter light
Face, the optical module include multiple light-emitting components, and each second incidence surface is corresponding with the light-emitting component.
3. display device according to claim 2, which is characterized in that the light-emitting component includes LED light bar.
4. display device according to claim 1, which is characterized in that the birefringent substrate includes underlay substrate and setting
Multiple refractive particles in the underlay substrate, the underlay substrate are bonded with the light-emitting surface.
5. display device according to claim 4, which is characterized in that at least partly described refractive particles protrude from the lining
The surface of the side towards the light-emitting surface of substrate.
6. display device according to claim 4, which is characterized in that the underlay substrate includes the first lining being stacked
Substrate and the second underlay substrate, second underlay substrate are arranged between first underlay substrate and the light-emitting surface,
Second underlay substrate is bonded with the light-emitting surface, and first underlay substrate and second underlay substrate are by resinous wood
Material is made, and multiple refractive particles are provided in second underlay substrate.
7. display device according to claim 6, which is characterized in that second underlay substrate with a thickness of 13-15 μm,
The partial size of the refractive particles is 5-7 μm.
8. according to claim 1 to display device described in 7 any one, which is characterized in that the optical module further includes driving
Dynamic circuit, the driving circuit are electrically connected with the light-emitting component, and the driving circuit is to drive the light-emitting component to shine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597160.2A CN107195248B (en) | 2017-07-20 | 2017-07-20 | Optical module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597160.2A CN107195248B (en) | 2017-07-20 | 2017-07-20 | Optical module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107195248A CN107195248A (en) | 2017-09-22 |
| CN107195248B true CN107195248B (en) | 2019-11-22 |
Family
ID=59885140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710597160.2A Active CN107195248B (en) | 2017-07-20 | 2017-07-20 | Optical module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107195248B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109613760A (en) * | 2019-01-30 | 2019-04-12 | 惠科股份有限公司 | Optical film layer and display device |
| CN109613746A (en) * | 2019-01-30 | 2019-04-12 | 惠科股份有限公司 | Optical film layer and display device |
| CN111965888B (en) * | 2019-05-20 | 2023-08-29 | 群创光电股份有限公司 | Display apparatus |
| KR20220130779A (en) * | 2020-03-02 | 2022-09-27 | 레이아 인코포레이티드 | Static-image augmented privacy display, mode-switchable privacy display system, and method |
| FI129780B (en) | 2020-10-26 | 2022-08-31 | Teknologian Tutkimuskeskus Vtt Oy | Optical arrangement for providing privacy |
| CN115376400B (en) * | 2021-05-19 | 2024-05-14 | 瀚宇彩晶股份有限公司 | Display device and method of operating the same |
| CN115172430A (en) * | 2022-07-26 | 2022-10-11 | 厦门天马微电子有限公司 | Display panel, driving method thereof and display device |
| CN116935750B (en) * | 2023-08-08 | 2024-05-10 | 太湖金张科技股份有限公司 | Peep-proof display cover plate |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1987606B (en) * | 2005-12-23 | 2010-04-07 | 群康科技(深圳)有限公司 | Back light module and liquid crystal display module |
| CN102109101B (en) * | 2009-12-29 | 2012-10-17 | 财团法人工业技术研究院 | Face-type light source module and optical film |
| TWI421590B (en) * | 2010-09-17 | 2014-01-01 | Au Optronics Corp | Display device with switchable view angle and the backlight module thereof |
| CN102011981B (en) * | 2010-09-27 | 2012-06-27 | 友达光电股份有限公司 | Display with switchable visual angle and backlight module thereof |
| CN104566051B (en) * | 2015-02-04 | 2017-08-11 | 京东方科技集团股份有限公司 | A kind of peep-proof lamp group and display device |
| CN105867007A (en) * | 2016-05-31 | 2016-08-17 | 京东方科技集团股份有限公司 | Display device and control method thereof |
| CN106019713A (en) * | 2016-07-28 | 2016-10-12 | 京东方科技集团股份有限公司 | Collimation backlight source and display device |
| CN106773179A (en) * | 2017-01-11 | 2017-05-31 | 京东方科技集团股份有限公司 | A kind of display device and display methods |
-
2017
- 2017-07-20 CN CN201710597160.2A patent/CN107195248B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107195248A (en) | 2017-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107195248B (en) | Optical module and display device | |
| KR101751996B1 (en) | Display apparatus | |
| KR102347244B1 (en) | Plate-Type Optical Member with Optical Fiber and Multi-Panel Display Device with the same | |
| US9025111B2 (en) | Seamless display panel using fiber optic carpet | |
| US10338432B2 (en) | Display device | |
| CN101221256B (en) | Microshutter, and lighting device, display device and electronic device | |
| US10578780B2 (en) | Transparent panel and display system thereof | |
| CN106970440A (en) | Back light unit, liquid crystal display device and the electronic equipment including liquid crystal display device | |
| CN108710241A (en) | Backlight module, liquid crystal display die set and electronic device | |
| US9927673B2 (en) | Display apparatus and displaying method thereof | |
| US20140226073A1 (en) | Illumination device, display device, and television receiving device | |
| CN108761923A (en) | Backlight module, liquid crystal display die set and electronic device | |
| US10302846B2 (en) | Display device | |
| US20160266303A1 (en) | Light-emitting unit and display | |
| JP5985221B2 (en) | Backlight unit | |
| CN108776413A (en) | Backlight module, liquid crystal display die set and electronic device | |
| CN103323972B (en) | Display device | |
| CN208421473U (en) | Backlight module, liquid crystal display die set and electronic device | |
| US20060146569A1 (en) | Backlight module with filler portion | |
| CN109188769A (en) | A kind of backlight, display panel and display device | |
| KR20120135047A (en) | Polarization module and image display apparatus | |
| KR102485634B1 (en) | Liquid crystal display device | |
| CN208421475U (en) | Backlight module, liquid crystal display die set and electronic device | |
| JP2019028308A (en) | Display panel and display | |
| US10502884B2 (en) | Light guide plate, manufacturing method thereof, backlight module and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |