CN106405915B - Optical device and display using the same - Google Patents
Optical device and display using the same Download PDFInfo
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- CN106405915B CN106405915B CN201611092234.9A CN201611092234A CN106405915B CN 106405915 B CN106405915 B CN 106405915B CN 201611092234 A CN201611092234 A CN 201611092234A CN 106405915 B CN106405915 B CN 106405915B
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 56
- 239000004973 liquid crystal related substance Substances 0.000 claims description 34
- 239000002245 particle Substances 0.000 claims description 17
- 239000004815 dispersion polymer Substances 0.000 claims description 9
- 239000002096 quantum dot Substances 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 230000000007 visual effect Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 17
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- 241001025261 Neoraja caerulea Species 0.000 description 8
- 229920000106 Liquid crystal polymer Polymers 0.000 description 4
- 239000004983 Polymer Dispersed Liquid Crystal Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1323—Arrangements for providing a switchable viewing angle
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
- G02F1/13345—Network or three-dimensional gels
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133601—Illuminating devices for spatial active dimming
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133626—Illuminating devices providing two modes of illumination, e.g. day-night
Abstract
An optical device includes an optical switching element and an optical conversion element. The optical switch element is provided with a first area and a second area, wherein the first area and the second area respectively correspond to different viewing angle modes. The light conversion element is arranged opposite to the light switch element and comprises a first part and a second part, wherein the first part corresponds to the first area, and the second part corresponds to the second area. When the first area is opened, the second area is correspondingly closed, and the light path of the light can be controlled to present a narrow visual angle or a wide visual angle by controlling the first area or the second area, so that the effect of simply switching the visual angle mode is achieved.
Description
Technical field
The present invention relates to optical field more particularly to Optical devices and the displays of Application Optics device.
Background technique
Now in portable 3C Product, especially on the 3C Product with display panel, viewing angle control piece is often attached
(privacy filter) is to protect privacy.Viewing angle control piece makes the eyes and display surface of other people by the optical path of limitation light
Information shown on display panel can not be just seen when between plate more than a special angle.This is for business people in aircraft or iron
There is great help in road using computer or for the people for paying attention to individual privacy.
It is currently that viewing angle control piece is set on the surface of display panel to the technical effect for reaching protection privacy, so
And such design method will affect the optical property of display panel.General common disadvantage is after attaching viewing angle control piece, shows
Show that the brightness of panel is dimmed.If in addition, changing use occasion, for example, needing wide when small space is with 3C Product sharing information
Field-of-view mode allows more people to can see the information on display panel, is only capable of manually removing viewing angle control piece at this time, at visual angle
It is quite inconvenient in the operation of switching, and viewing angle control piece removes also Chang Yinwei deformation and is difficult to utilize again.
Summary of the invention
In order to solve the problems, such as in the prior art, it is switched fast field-of-view mode easily and according to use demand,
A kind of Optical devices are provided herein.Optical devices include switching element and light conversion element.Switching element has the firstth area
And secondth area, the firstth area and the secondth area respectively correspond different field-of-view modes.It is, when the firstth area is opened, the secondth area
Correspondingly close.Light conversion element is arranged relative to switching element, and light conversion element includes the first part and the second part,
In first the firstth area of correspondence, and second the secondth area of correspondence.To which light can be presented not by the firstth area or the secondth area
Same optical path, and achieve the effect that view angle switch.
In one embodiment, switching element includes switching medium layer, first electrode and second electrode.Second electrode
It is located at least in the secondth area, switching medium layer is between first electrode and second electrode.Further, switching medium layer is
Polymer dispersion type liquid crystal (polymer dispersed liquid crystal, PDLC) layer or macromolecule network liquid crystal
(polymer network liquid crystal, PNLC) layer controls macromolecule dispersion by first electrode or second electrode
The deflection of type liquid crystal layer or macromolecule network liquid crystal layer, to control the switching of field-of-view mode.
In one embodiment, second is made of multiple quantum dots or quantum column.Quantum dot or quantum column absorb light
It can be converted into white light after the energy of line, and scattering is complete cycle light, and achieve the effect that wide viewing angle.
In one embodiment, Optical devices also include prismatic lens.Prismatic lens include prism area, and prism area corresponds to first
Portion, by the polarisation of prism microstructure in prism area, by deflection of light in specific direction, this is the privacy mode of narrow viewing angle.Into
One step, the width in prism area is greater than or equal to the width in the firstth area, second width is greater than or equal to the width in the secondth area,
Therefore, to avoid generation light leakage.
In one embodiment, Optical devices also include light source module, it is, by switching element, light conversion element, light
Source module common combination is backlight module.Light source module is set to below light conversion element, and light source module is in a first mode
When white light is provided, white light substantially penetrates the firstth area but does not penetrate the secondth area.It is, white light can pass through switching medium layer
Deflection or prism area setting, the firstth area and first can only be passed through to limit the path of white light.In addition, light source module
Also non-white light can be provided in second mode, non-white light not penetrate the firstth area substantially, the quantum dot or quantum column in second by
To excitation, non-white light is converted into white light, and complete cycle light is reached with scattering method, this is the sharing model of wide viewing angle.It is general and
Speech, the wavelength of non-white light are 300 nanometers to 500 nanometers, energy with higher, to excite quantum dot or quantum column.Here, white
Light and non-white light can be realized by the light-emitting component in toggle lights module, alternatively, can also be by toggle lights come real
It is existing.
Here, more providing a kind of display.Display includes Optical devices and display panel.Display panel is relative to light
Device setting is learned, different field-of-view modes can be switched by Optical devices.
In one embodiment, display panel is liquid crystal display panel, and Optical devices can further include light source module,
It is exactly by switching element, light conversion element and light source module jointly as the backlight module of display.
In another embodiment, display panel is an emissive type display panel.Emissive type display panel is to provide light
Line, light do not penetrate the secondth area substantially.
In one embodiment, display also includes prismatic lens, and prismatic lens include prism area, and prism area is first corresponding.
Prismatic lens can be with display panel combination, so that light conversion element is set between prismatic lens and switching element.Prism
Piece can also be combined with Optical devices, so that switching element is set between prismatic lens and light conversion element.
Here, Optical devices provide the mode of corresponding different perspectives range, can initiatively be cut according to the demand used
The mode for changing visual angle, it is simple and convenient in control without the installation or unloading on hardware.
Detailed description of the invention
Fig. 1 is schematic diagram of the first embodiment in first mode of Optical devices of the invention.
Fig. 2 is schematic diagram of the first embodiment in second mode of Optical devices of the invention.
Fig. 3 A is the schematic top plan view of an embodiment of light conversion element of the invention.
Fig. 3 B is the schematic top plan view of another embodiment of light conversion element of the invention.
Fig. 4 is schematic diagram of the second embodiment in first mode of Optical devices of the invention.
Fig. 5 is schematic diagram of the second embodiment in second mode of Optical devices of the invention.
Fig. 6 is the schematic diagram of the first embodiment of display of the invention.
Fig. 7 is the schematic diagram of the second embodiment of display of the invention.
Fig. 8 is the schematic diagram of the 3rd embodiment of display of the invention.
Fig. 9 is the schematic diagram of the fourth embodiment of display of the invention.
Description of symbols:
1 Optical devices, 10 switching element
11 first area, 13 second area
15 first electrode, 17 second electrode
19 switching medium layer, 20 light conversion element
21 first 23 second
25 smooth 30 light source modules of conversion particles
31 light source 31A first light sources
33 light guide plate of 31B second light source
40 prismatic lens, 41 prism area
411 prism microstructure, 5 display panel
51 first substrate, 52 the second substrate
55 light-emitting components
100 display A1 extending shafts
W1Width W2AWidth
W2BWidth W3Width
Specific embodiment
Refering to fig. 1 and Fig. 2, the first embodiment of Optical devices respectively of the invention first mode schematic diagram and
In the schematic diagram of second mode.As shown in Figures 1 and 2, in the present embodiment, Optical devices 1 include switching element 10 and
Light conversion element 20.Switching element 1 has at least one first area 11 and at least one second area 13, wherein the first area 11 and the
Two areas 13 respectively correspond different field-of-view modes.Switching element 10 includes at least a first electrode 15, at least a second electrode
17 and switching medium layer 19.Second electrode 17 is located at least in the second area 13, switching medium layer 19 be located at first electrode 17 with
And between second electrode 19, first electrode 15 and the citing of second electrode 17 are made by transparent conductive material.Switching medium layer
19 be polymer dispersion type liquid crystal (polymer dispersed liquid crystal, PDLC) layer or macromolecule network liquid crystal
(polymer network liquid crystal, PNLC) layer.
Polymer dispersion type liquid crystal layer or macromolecule network liquid crystal layer are scattered in polymeric membrane using liquid crystal molecule, are made
Formation of liquid crystals is spherical or forms three-dimensional network shape.When its characteristic is to be driven by voltage, bright, dark-state is changed significantly.When
Apply voltage when, the molecule of polymer dispersion type liquid crystal or macromolecule network liquid crystal layer is deflected by electric field driven, make light with
Specific direction is by being in illuminated state；When no voltage is applied, the molecule of polymer dispersion type liquid crystal or macromolecule network liquid crystal layer
Non deflected, light is reflected, can not penetrate into dark-state at this time.
Here, the operation of Optical devices 1 is to generate electric field control by applying a voltage to first electrode 15 or second electrode 17
The deflection of the liquid crystal in the first area 11 or the second area 13 in switching element 10 processed.In the subsequent descriptions of present application, it will apply
When voltage makes the deflection of switching medium layer 19 that can penetrate light, it is defined as opening, and light can not be made to pass through no applied voltage,
It is defined as closing.In addition, opening the first area 11 in first mode, and the second area 13 is correspondingly closed.Relatively, exist
The second area 13 is opened when second mode, and the first area 11 is correspondingly closed.
Light conversion element 20 is arranged relative to switching element 10, is exemplified as being mutually attached double with switching element 10
Layer structure can also mutually have interval.Light conversion element 20 includes at least one first 21 and at least one second 23,
In first 21 the first area 11 of correspondence, and second 23 the second area 13 of correspondence.Here, can be blank area in first 21, and
Second 23 is light transition zone, and second 23 includes light conversion particles 25, and light conversion particles 25 are quantum dot, quantum column or above-mentioned
Combination.
In Fig. 1, the first mode for opening the first area 11, the second area 13 of closing is presented.In this embodiment, with light source die
Block 30 is that directly-down light source is example, but not limited to this.Light source module 30 provides white light in first mode.White light light passes through
First area 11 and first 21, the liquid crystal deflection direction due to light by the switching medium layer 19 in the first area 11 is limited, out
Light path is only oriented towards specific direction, and specific direction is exemplified as front viewing angle direction.Meanwhile second area 13 switching medium layer 19
Liquid crystal is non deflected, if having white light light by the secondth area 13, is influenced by liquid crystal in switching medium layer 19, white light light meeting
Reflection or scattering and can not pass through, so that white light light, which is presented, only passes through first 21 and towards the state of specific direction, also
It is to shine visual angle towards specific direction, therefore, the privacy mode of narrow viewing angle is presented in first mode.
In Fig. 2, the second mode opened the second area 13 and close the first area 11 is presented.Light source module 30 is in second mode
When non-white light is provided.The liquid crystal of the switching medium layer 19 in the first area 11 is non deflected, non-white light pass through the firstth area 11 when be blocked and
It can not pass through.Non-white light light enters second 23 behind the second area 13, the light conversion particles 25 in excitation second 23.When
Light conversion particles 25 are excited, and non-white light can be converted to white light, and scatter to form complete cycle light.Here, last be presented
Optical path be white light, and in the form of complete cycle light towards all directions issue, second mode present wide viewing angle sharing model.Due to white
Light is different with the wavelength of non-white light, and exciting light conversion particles 25 need higher energy, non-white light be with 300 nanometers of wavelength extremely
500 nanometers of blue wave band is realized, merely illustrative herein, but not limited to this, the short wavelength light sources such as purple light, ultraviolet light are also reachable
To this effect.
In the present embodiment, the open and close in the first area 11, the second area 13 must cooperate toggle lights module 30 generate white light,
Non-white light switches narrow viewing angle, the function of wide viewing angle to realize.Light source module 30 includes first light source 31A and second light source 31B, the
One light source 31A corresponds to the first area 11 and second light source 31B corresponds to the second area 13, and first light source 31A generates white light, and
Second light source 31B generates non-white light.
Further, first light source 31A and second light source 31B can be light emitting diode (light-emitting
Diode, LED) or Organic Light Emitting Diode (organic light-emitting diode, OLED) light source, first light source 31A
Comprising red-light LED or OLED, green light LED or OLED, blue-ray LED or OLED, it is all turned on to generate white light, and second light source
31B only includes blue-ray LED or OLED, the non-white light for the blue wave band that 300 nanometers to 500 nanometers of generation wavelength.In first mode
Shi Kaiqi first light source 31A, second light source 31B is closed, and opens 31B in second mode, closes first light source 31A to reach
This effect.It is merely illustrative herein, but not limited to this, in change case, the first light source 31A and second light source of light source module 30
31B is all made of the configuration mode comprising red-light LED or OLED, green light LED or OLED, blue-ray LED or OLED, in first mode
First light source 31A and second light source 31B are all turned on, to generate white light, only opened in second mode blue-ray LED or
OLED, and the power of blue-ray LED or OLED are further enhanced to realize.
In addition, second 23 width W2BIt is exemplified as the width W more than or equal to the second area 132A, which has limited enter the
The source of two 23 non-white light light, since so-called non-white light herein has biggish energy, structure design whereby can be with
It avoids in second mode, non-white light light leakage and the eyes for injuring user, the skill for reaching protection user's eyes is designed with this
Art effect, while also avoiding causing color difference or other optical variations because of non-white light light leakage.
Further, refering to Fig. 3 A and Fig. 3 B, the vertical view of the different embodiments of light conversion element respectively of the invention
Schematic diagram.As shown in Figure 3A, by overlooking sight, first 21 of light conversion element 20 and second 23 is staggeredly divided for vertical bar shape
Cloth.And it is as shown in Figure 3B, second 23 of light conversion element 20 is in staggered lines or netted, so that first 21 is in multiple points
From trellis arrangement.It is merely illustrative herein, but not limited to this, for example, first 21 and second 23 can also do other distributions
Mode, for example, first 21 and second 23 for slanted bar shape staggeredly etc..
Further, light source module 30 is set to 10 lower section of switching element.Such as switching element 10, light conversion member
Part 20 is combined into backlight module with 30 groups of light source module.It is, Optical devices 1 can be independently arranged with light source module 30, it can also
It is generated when Optical devices 1 and 30 common combination of light source module are backlight module by control light source module 30 with combination settings
Different light and control switching element 10 and accordingly open or close, control backlight module goes out light optical path in the first mould
It is in specific direction when formula, and is in complete cycle light in second mode, the optical path for controlling backlight module determines the field-of-view mode that shines.
Refering to Fig. 4 and Fig. 5, the second embodiments of Optical devices respectively of the invention first mode schematic diagram and
The schematic diagram of second mode.As shown in Figures 4 and 5, second embodiment different from the first embodiment essentially consists in Optical devices 1
It also include prismatic lens 40.Prismatic lens 40 include prism area 41, and have multiple prism microstructures 411 in prism area, and prism area 41
Corresponding to the first area 11.As shown in figure 4, the prism microstructure 411 in prism area 41 can be by the light of the generation of light source module 30
Deviation is towards specific direction, it is of particular importance that being presented white light deflection of light narrow towards the first area 11 in first mode
Field-of-view mode.
The citing of light source module 30 that Fig. 4 and Fig. 5 is used is side-light type light source, here, light source module 30 includes light source first
Light source 31A, second light source 31B and light guide plate 33, in this embodiment, first light source 31A are located at the side of light guide plate 33, to
White light is generated, and second light source 31B is located at the other side of the light guide plate 33 relative to first light source 31B, to generate non-white light.?
This is merely illustrative, rather than to limit, in change case, first light source 31A and second light source 31B are all made of comprising feux rouges
The configuration mode of LED or OLED, green light LED or OLED, blue-ray LED or OLED, in first mode by first light source 31A and
Two light source 31B are all turned on, and to generate white light, red-light LED and green light LED are closed in second mode, and increase blue-ray LED
Luminous intensity reaches same technical effect.
In general, the light that side-light type light source module 30 generates, is entering the first area 11 or the second by light guide plate 33
Specific direction is had no before area 13, at this point, light is oriented to specific direction by prism microstructure 411.As shown in figure 4,
When one mode, the white light light that first light source 31A is generated is oriented to the first area 11 via light guide plate 33 and prism structure 411, then passes through
By being issued after first 21.As shown in figure 5, in second mode, the non-white light light that second light source 31B is generated, through the light guide plate
Behind 33 the second areas 13 of guiding, entered in second 23 by the switching medium layer 19 of deflection, and excite the light in second 23
Conversion particles 25.When partial non-white light light enters prism structure 411, it is still directed towards the first area 11, but by switching medium
Undeflected liquid crystal stops and can not pass through in layer 19.In some embodiments, prismatic lens 40 may include one or more layers, can
It is configured with the design according to light source, makes to adjust light towards specific direction, to meet the demand of first mode narrow viewing angle.
As shown in figure 5, in second mode, the second light source 31B of light source module 30 is opened with 300 nanometers of generation wavelength extremely
The non-white light of 500 nanometers of blue wave band, and close first light source 31A.Non-white light enters second 23 by the second area 13, swashs
Luminescent conversion particle 25 and generate white light complete cycle light.In addition, non-white light will receive prism area when non-white light does not enter the second area 13
41 are directed to the first area 11, by switching medium layer 19 blocking and reflect or scatter, without entering in first 21.Cause
This, also can avoid the variation that non-white light enters generation color difference or other optical properties in first 21.
In Fig. 4 and Fig. 5, switching element 10, light conversion element 20, light source module 30 and prismatic lens 40 can independently be set
It sets, it can also be with combination settings, for example, switching element 10, light conversion element 20, light source module 30 and prismatic lens 40 are common
Group is combined into backlight module.
Further, the width W in prism area 413More than or equal to the width W in the first area 111, optics road is limited whereby
Diameter also avoids white light light from entering in second 23 and visual angle change or non-white light is caused to enter in first 21.More into one
Step ground, when the light conversion particles 25 in second 23 are quantum column, it is micro- that the long axis of quantum column is parallel to prism in prism area 41
The extending shaft A1 of structure 411, the direction of extending shaft are the direction for being in and out of drawing.
Refering to Fig. 6, Fig. 6 is the schematic diagram of the first embodiment of display of the invention.Display 100 includes Optical devices
1 and display panel 5.Display panel 5 is that opposing optical device 1 is arranged, and Optical devices 1 various embodiments can come as the aforementioned
It implements.Display 100 can separately be independently arranged light source module 30, and Optical devices 1 can be set in display panel 5 and light source die
Between block 30 or Optical devices 1 include light source module 30, that is, switching element 10, light conversion element 20 and light source die
30 common combination of block is backlight module.It is backlight in switching element 10, light conversion element 20 and 30 common combination of light source module
In the case of module, control the first area 11 of switching element 10, the second area 13 open or close and corresponding light source die
The switching of the white light, non-white light of block 30, the light optical path that goes out that can control backlight module is specific direction or complete cycle light, directly makes to show
Show that narrow viewing angle mode or wide angle mode is presented in panel 5.
As shown in fig. 6, display 100 includes also prismatic lens 40, prismatic lens 40 are to be set to display panel 5 and Optical devices
Between 1, the prism area 41 in prismatic lens 40 towards Optical devices 1 and corresponds to first 21, here, prismatic lens 40 are independent
Element, but it is merely illustrative, and it is without being limited thereto, for example, prismatic lens 40 can be attached under display panel 5 in modularization
Surface, and towards Optical devices 1.In this embodiment, light conversion element 20 be positioned at prismatic lens 40 and switching element 10 it
Between.
Refering to Fig. 7, Fig. 7 is the schematic diagram of the second embodiment of display of the invention.Implementation shown by Fig. 7 and Fig. 6
For example the difference is that prismatic lens 40 are set on Optical devices 1, switching element 10 is turned positioned at prismatic lens 40 and light
It changes between element 20, for light conversion element 20 between prismatic lens 40 and display panel 5, prismatic lens 40 are located at switching element
Between 10 and light source module 30.In the embodiment of Fig. 6 and Fig. 7, display panel 5 is exemplified as liquid crystal display panel, light source die
The citing of block 30 is comprising light source 31.It is possible to further as described in embodiment above-mentioned, by prismatic lens 40 and switching element
10, light conversion element 20 and 30 common combination of light source module are that backlight module passes through control when providing light source to display panel 5
The light that backlight module processed generates is and then to determine that the picture generated is narrow viewing angle mould towards specific direction or complete cycle light
Formula or wide angle mode.
In addition, the embodiment of Fig. 6 and Fig. 7 is to use single light source, but not limited to this, the light of other embodiments or change case
Source module is equally applicable in the light source module 30 of Fig. 6 and Fig. 7.
Refering to Fig. 8, Fig. 8 is the schematic diagram of the 3rd embodiment of display of the invention.In embodiment shown in Fig. 8, show
Show that panel 5 is different from Fig. 6 and Fig. 7, display panel 5 shown in Fig. 8 is emissive type display panel, without light source module.Also
It is that display panel 5 has light-emitting component 55, light-emitting component 55 can be LED or OLED to reach self luminous function.Self-luminous
Red-light LED, green light LED, blue-ray LED conduct can be arranged in the pixel region of display panel 5 in the embodiment of type display panel
Light-emitting component 55 and pixel image-forming component, it is merely illustrative herein, however it is not limited to this, with feux rouges, green light, blue light, white light (RGBW)
Common definition pixel region is also the mode that can be implemented.In first mode, display panel 5 provides a light, at this point, the light
Line can not be passed through the second area 13 by the blocking of switching medium layer 19, wherein firstth area 11 is opened in the first mode, and
Secondth area 13 closes, as shown in Figure 8.In second mode, the function for improving blue light emitting element in display panel 5 can control
Rate, light are only entered in second 23 by the second area 13, display panel 5 mentions by the blocking of the switching medium layer 19 in the first area 11
Blue light components in the light of confession are that exciting light conversion particles 25 are converted into white light, and scatter and wide angle mode is presented.
Further, display 100 also includes prismatic lens 40.Prismatic lens 40 be set to display panel 5 and light supply apparatus 1 it
Between, to limit the deviation direction of light.It is to connect with 1 group of Optical devices in this prismatic lens 40, and the prism area 41 of prismatic lens 40
Image surface display panel 5.Here, switching element 10 is between prismatic lens 40 and light conversion element 20.It is herein only to show
Example, but not limited to this, in other change case, prismatic lens 40 can be set to the upper surface of display panel 5, and prism microstructure
411 are directed away from the direction of display panel 5 to realize.
Refering to Fig. 9, Fig. 9 is the schematic diagram of the fourth embodiment of display of the invention.As shown in figure 9, fourth embodiment
Display 100 be different from previous embodiment.In the present embodiment, Optical devices 1 are set to the first substrate 51 of display 100
And between the second substrate 52.First substrate 51 is array substrate, the second substrate 52 is colored optical filtering substrates, but this is merely illustrative,
And it is without being limited thereto.Optical devices 1 include switching element 10, light conversion element 20, first electrode 15 and second electrode 17.First
Electrode 15 is located on first substrate 51.Switching element 10 is located on first electrode 15, and has the first area 11 and second
Area 13.Light conversion element 20 is located on switching element 10, has first 21 and second 23, and first 21 corresponds to first
Area 11, and second 23 corresponds to the second area 13.Second electrode 17 is located in the second substrate 52, towards Optical devices 1, and it is neighbouring
In light conversion element 20, second electrode 17 at least corresponds to be located at second 23.Here, using the first area 11 and second is filled in
The switching medium layer 19 in area 13, i.e. polymer dispersion type liquid crystal layer or macromolecule network liquid crystal layer replace traditional liquid crystal display
Liquid crystal layer, using driving first electrode 15 and second electrode 17 at least one, reach the technical effect of switching-over light path,
So as to the field-of-view mode of initiatively switching display 100.Secondary, first electrode 15 and second electrode 17 are transparency conducting layer material
Made by material, for example, indium tin oxide (ITO), aluminium zinc oxide (AZO) or thickness are in 100 nanometers of (nm) metals below
Deng, it is merely illustrative herein, but not limited to this.Polymer dispersion type liquid crystal layer or macromolecule network mentioned in above embodiments
Liquid crystal, because applying the switching that voltage causes liquid crystal molecule there are two refraction of light path state, for carrying out view angle switch, in this liquid
Crystal seed class is not limited with polymer dispersion type liquid crystal layer or macromolecule network liquid crystal, any to have this characteristic liquid crystal or macromolecule material
Material, all in this range.Selectively, in change case, replace colorized optical filtering using the light conversion particles 25 in second 23
Layer, that is, the chromatic filter layer originally having in first substrate 51 or the second substrate 52 can be omitted, in light conversion element 20
Light conversion particles 25 replace.
Further, display 100 also includes light source module 30 and prismatic lens 40, and light source module 30 is located at first substrate 51
Lower section, and prismatic lens 40 can be merely illustrative herein between light source module 30 and first substrate 51, but not limited to this.
In a change case, the 3rd embodiment of display of the invention can be similar to, using self luminescent display panel, to omit
The use of light source module 30.In another change case, Optical devices 1 are embedded in self luminescent display panel.
In conclusion can by the way that Optical devices to be set to the inside of display, using control the firstth area of Optical devices,
The switch in the secondth area cooperates the corresponding switching of the white light of light source, non-white light, to reach the function of view angle switch.It therefore, can foundation
The demand of use occasion, opportunity and various users initiatively switches the mode at visual angle, without the installation or unloading on hardware,
It is simple and convenient in control.
Although preferred embodiment discloses as described above, however, it is not to limit the invention, any to be familiar with relevant art,
Without departing from the scope of the present invention, when can make a little variation and retouching, therefore scope of patent protection of the invention must regard this
Subject to specification the attached claims institute defender.
Claims (17)
1. a kind of Optical devices, include:
One switching element has at least one first area and at least one second area, wherein firstth area and secondth area difference
Corresponding different field-of-view mode；And
One light conversion element is arranged relative to the switching element, and the light conversion element is comprising at least one first and at least
One second, wherein this first correspondence one first area, and this second correspondence secondth area,
Wherein, which also includes a switching medium layer, and switch Jie is respectively present in firstth area and secondth area
Matter layer, and
Wherein, this first is blank area, and this second is light transition zone and includes light conversion particles, the smooth conversion particles
It is excited by non-white light, the non-white light can be converted to white light, and scatter to form complete cycle light.
2. Optical devices as described in claim 1, wherein the switching element includes:
An at least first electrode；And
An at least second electrode is located at least in secondth area, wherein the switching medium layer be located at the first electrode and this
Between two electrodes.
3. Optical devices as described in claim 1, wherein the switching medium layer is that a polymer dispersion type liquid crystal layer or one are high
Molecular network liquid crystal layer.
4. Optical devices as described in claim 1, wherein the light conversion particles are quantum dot, quantum column or quantum dot and quantum
The combination of column.
5. Optical devices as described in claim 1 also include a prismatic lens, wherein the prismatic lens include an at least prism area,
And the prism area corresponds to firstth area, and wherein the light conversion element is to be set to the prismatic lens and the switching element
Between or the switching element be to be set between the prismatic lens and the light conversion element.
6. Optical devices as claimed in claim 5, wherein the width in the prism area is greater than or equal to the width in firstth area.
7. Optical devices as claimed in claim 6, wherein second width is greater than or equal to the width in secondth area.
8. Optical devices as described in claim 1, wherein second width is greater than or equal to the width in secondth area.
9. Optical devices as described in claim 1, also include a light source module, which is set to the switching element
Lower section, wherein the light source module is to provide a white light, which does not penetrate secondth area substantially.
10. Optical devices as described in claim 1, also include a light source module, which is set to photoswitch member
Below part, wherein the light source module is to provide a non-white light, this second is that the non-white light is converted to white light.
11. Optical devices as claimed in claim 10, wherein the wavelength of the non-white light is 300 nanometers to 500 nanometers.
12. a kind of display, includes:
One Optical devices include:
One switching element has at least one first area and at least one second area, and firstth area and secondth area respectively correspond
Different field-of-view modes；And
One light conversion element is arranged relative to the switching element, which includes at least one first and at least one
Second, wherein this first corresponds to firstth area, and this second corresponds to secondth area；And
One display panel is arranged relative to the Optical devices,
Wherein, which also includes a switching medium layer, and switch Jie is respectively present in firstth area and secondth area
Matter layer, and
Wherein, this first is blank area, and this second is light transition zone and includes light conversion particles, the smooth conversion particles
It is excited by non-white light, the non-white light can be converted to white light, and scatter to form complete cycle light.
13. display as claimed in claim 12, wherein the display panel is a liquid crystal display panel, wherein the Optical devices
Also it is set to below the switching element comprising a light source module.
14. display as claimed in claim 13, wherein the light source module is to provide a white light, which is not penetrated substantially
Secondth area.
15. display as claimed in claim 13, wherein the light source module is to provide a non-white light, this second is that this is non-
White light is converted to white light.
16. display as claimed in claim 12, wherein the display panel is an emissive type display panel, the emissive type
Display panel is that a light is provided in a first mode, which does not penetrate secondth area substantially, wherein in first mould
Firstth area is opened when formula, and secondth area closes.
17. display as claimed in claim 12 also includes a prismatic lens, which includes an at least prism area, and should
Prism area correspond to this first, wherein the light conversion element be set between the prismatic lens and the switching element, or
Person's switching element is set between the prismatic lens and the light conversion element.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105132944 | 2016-10-12 | ||
| TW105132944A TWI587278B (en) | 2016-10-12 | 2016-10-12 | Optical Device and Display with the Optical Device |
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| Publication Number | Publication Date |
|---|---|
| CN106405915A CN106405915A (en) | 2017-02-15 |
| CN106405915B true CN106405915B (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611092234.9A Expired - Fee Related CN106405915B (en) | 2016-10-12 | 2016-12-01 | Optical device and display using the same |
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| CN (1) | CN106405915B (en) |
| TW (1) | TWI587278B (en) |
Families Citing this family (6)
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| JP7083102B2 (en) * | 2017-11-29 | 2022-06-10 | Ｔｉａｎｍａ Ｊａｐａｎ株式会社 | Ray direction control device and display device |
| EP3628919B1 (en) * | 2018-09-27 | 2023-02-22 | BSH Hausgeräte GmbH | Device and method for displaying optical information |
| CN110275352B (en) * | 2019-06-28 | 2021-12-03 | 武汉华星光电技术有限公司 | Backlight module and light transmittance regulation and control method thereof |
| CN111679466B (en) * | 2020-06-19 | 2023-05-23 | 昆山龙腾光电股份有限公司 | Display panel with switchable viewing angles, display device and viewing angle switching method |
| CN113448112B (en) * | 2020-08-13 | 2022-05-20 | 重庆康佳光电技术研究院有限公司 | Display panel and electronic device |
| US11862113B2 (en) | 2020-08-13 | 2024-01-02 | Chongqing Konka Photoelectric Technology Research Institute Co., Ltd. | Display panel and electronic device |
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| JP2007004085A (en) * | 2005-06-27 | 2007-01-11 | Asahi Glass Co Ltd | Dimming device and method for manufacturing the same |
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| WO2012121372A1 (en) * | 2011-03-10 | 2012-09-13 | シャープ株式会社 | Display element and electronic device |
| TWI468775B (en) * | 2011-08-26 | 2015-01-11 | Au Optronics Corp | Electroluminescent display panel and method of making the same |
| GB2509065A (en) * | 2012-12-18 | 2014-06-25 | Dupont Teijin Films Us Ltd Partnership | Method for reducing angular dependence on OLED light emission |
| CN204790254U (en) * | 2015-05-05 | 2015-11-18 | 上海冠显光电科技有限公司 | Changeable peep -proof liquid crystal disply device of separated regions control |
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| CN101371190A (en) * | 2006-01-20 | 2009-02-18 | 日本电气株式会社 | Mobile terminal |
| CN101246262A (en) * | 2008-03-31 | 2008-08-20 | 北京超多维科技有限公司 | 2D/3D switchable stereo display device |
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| Publication number | Publication date |
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| TWI587278B (en) | 2017-06-11 |
| CN106405915A (en) | 2017-02-15 |
| TW201814688A (en) | 2018-04-16 |
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