CN110262112A - Liquid crystal display with visual angle deviation - Google Patents
Liquid crystal display with visual angle deviation Download PDFInfo
- Publication number
- CN110262112A CN110262112A CN201910479822.5A CN201910479822A CN110262112A CN 110262112 A CN110262112 A CN 110262112A CN 201910479822 A CN201910479822 A CN 201910479822A CN 110262112 A CN110262112 A CN 110262112A
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- crystal display
- diffusion barrier
- visual angle
- orientation
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0231—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having microprismatic or micropyramidal shape
-
- 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
- G02F1/133504—Diffusing, scattering, diffracting elements
Abstract
The invention discloses a kind of liquid crystal display with visual angle deviation, the liquid crystal display includes the orientation diffusion barrier being sequentially arranged from top to bottom, binding layer and optics group mould；The upper surface of the orientation diffusion barrier is provided with micro-structure, for playing the role of deflection of light；The binding layer is formed by optical cement, the total reflection phenomenon for destroying between optics group mould.The main perspective for solving existing big multi-display equipment is all perpendicular to the normal direction of liquid crystal display, the display screen being especially applied on aircraft, since the spatial position of aircraft cockpit is limited, the observation visual angle off-normal of pilot, the problem of its brightness decay is larger, and pilot is caused not see the information shown on screen.
Description
Technical field
The present invention relates to field of liquid crystal display, and in particular, to a kind of liquid crystal display with visual angle deviation.
Background technique
Liquid crystal display in daily life using more and more common, but the main perspective of big multi-display equipment is all perpendicular to
The normal direction of liquid crystal display.In some special cases, such as aircraft cockpit is because it is limited by space, it is desirable that liquid crystal display
Main view angular direction off-normal, convenient for pilot observe.Since the spatial position of aircraft cockpit is limited, the observation of pilot is regarded
Off-normal its brightness decay in angle is larger to cause pilot not see the information shown on screen.Liquid crystal display is referred to as pilot's
" eyes ", since the spatial position of aircraft cockpit is limited, pilot needs specific angle to remove observation liquid crystal display in some cases,
And when aircraft is in high-altitude flight, the light at the big visual angle of external environment can enter human eye by aircraft cockpit glass, lead to pilot
The picture and character on display screen are not seen, it is difficult to find, lock and hit the mesh in Multi-function display module accurately and in time
Mark.The angle of different types, the normal at the visual angle and liquid crystal display of pilot is different.Experiment shows main light emission angle and liquid crystal display
When normal is vertical, observation visual angle and the angle of liquid crystal display main light emission angular direction are bigger, and mirror surface transmitting is bigger, and brightness declines
What is subtracted is faster, therefore the bigger observing effect of angle of viewing angle and main light emission angle is poorer.
Summary of the invention
The object of the present invention is to provide a kind of liquid crystal displays with visual angle deviation, solve existing most display and set
Standby main perspective is all perpendicular to the normal direction of liquid crystal display, the display screen being especially applied on aircraft, due to aircraft cockpit
Spatial position limited, the observation visual angle off-normal of pilot, brightness decay is larger, and pilot is caused not see on screen
The problem of information of display.
To achieve the goals above, the present invention provides a kind of liquid crystal display with visual angle deviation, the liquid crystals
Display screen includes the orientation diffusion barrier being sequentially arranged from top to bottom, binding layer and optics group mould；
The upper surface of the orientation diffusion barrier is provided with micro-structure, for playing the role of deflection of light；
The binding layer is formed by optical cement, the total reflection phenomenon for destroying between optics group mould.
Preferably, the micro-structure includes: the multiple grooves being sequentially arranged formed in the orientation diffusion barrier upper surface
Structure.
Preferably, the groove structure is chamfer type groove.
Preferably, the bevel edge of the chamfer type groove and the angle of its vertical edge are 20-45 °.
Preferably, the liquid crystal display further includes display screen, and the micro-structure on the orientation diffusion barrier is shown towards described
Display screen.
Preferably, the refractive index of the orientation diffusion barrier is 1.48-1.49.
According to the above technical scheme, the present invention provides a kind of liquid crystal display with visual angle deviation, the liquid crystals
Display screen includes the orientation diffusion barrier being sequentially arranged from top to bottom, binding layer and optics group mould；The upper surface of the orientation diffusion barrier
It is provided with micro-structure, for playing the role of deflection of light；The binding layer is formed by optical cement, for destroying between optics group mould
Total reflection phenomenon；The upper surface of liquid crystal display provided by the invention, orientation diffusion barrier is provided with micro-structure, can be realized
The deviation of light, the diffusion barrier with orientation deviation is arranged in pairs or groups with other optical films, so that liquid crystal display main perspective off-normal
Direction simultaneously guarantees without display defects such as lamp shadow, brightness irregularities；In order to enable the visual angle of orientation diffusion barrier is taken into account under big visual angle
Display effect needs to cooperate other optical films and carries out corresponding optics binding using optical cement, destroys complete between optical film
Reflex is incident on the light under big visual angle in liquid crystal display and has the function that expansion visual angle.To sum up, provided by the invention
Liquid crystal display with visual angle deviation mainly has following advantages: (1) orientation diffusion barrier being used to make the main light emission of liquid crystal display
Angle deviating normal direction, avoiding being affected by ambient light when observing liquid crystal display under the special visual angle of pilot causes pilot to see
Picture and character on unclear display screen；(2) it orients and refractive index, energy is matched by optics binding between diffusion barrier and optics group mould
The visuality under the luminous energy raising big visual angle of liquid crystal display under liquid crystal display wide-angle is enough improved, power consumption is reduced.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
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 structure chart of the liquid crystal display provided by the invention with visual angle deviation；
Fig. 2 is the diffusion principle figure for orienting diffusion barrier.
Description of symbols
1- orients diffusion barrier 2- binding layer
3- optics group mould
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.
In the present invention, in the absence of explanation to the contrary, the noun of locality be included in the term " from top to bottom " etc. is only
Represent orientation of the term under normal service condition, or be those skilled in the art understand that be commonly called as, and be not construed as to this
The limitation of term.
As shown in Figure 1: the present invention provides a kind of liquid crystal display with visual angle deviation, the liquid crystal display includes
Orientation diffusion barrier 1, binding layer 2 and the optics group mould 3 being sequentially arranged from top to bottom；The upper surface setting of the orientation diffusion barrier 1
There is micro-structure, for playing the role of deflection of light；The binding layer 2 is formed by optical cement, for destroying between optics group mould 3
Total reflection phenomenon.The upper surface of liquid crystal display provided by the invention, orientation diffusion barrier is provided with micro-structure, can be realized light
The deviation of line, the diffusion barrier with orientation deviation is arranged in pairs or groups with other optical films, so that liquid crystal display main perspective off-normal side
To and guarantee without display defects such as lamp shadow, brightness irregularities；In order to enable showing under big visual angle is taken into account at the visual angle of orientation diffusion barrier
Show effect, need to cooperate other optical films and carry out corresponding optics binding using optical cement, destroys being all-trans between optical film
Penetrate phenomenon make the light under big visual angle be incident in liquid crystal display have the function that expand visual angle.To sum up, tool provided by the invention
There is the liquid crystal display of visual angle deviation mainly to have following advantages: (1) orientation diffusion barrier being used to make the main light emission angle of liquid crystal display
Off-normal direction is spent, avoiding being affected by ambient light when observing liquid crystal display under the special visual angle of pilot causes pilot to see not
Picture and character on clear display screen；(2) it orients and refractive index is matched by optics binding between diffusion barrier and optics group mould, it can
The visuality under the luminous energy raising big visual angle of liquid crystal display under liquid crystal display wide-angle is improved, power consumption is reduced.
As shown in Figure 2: the refractive index of air is 1, and the refractive index for orienting diffusion barrier is 1.49.According to the law of refraction, work as light
When line vertical incidence, 20 ° of deflection of light of diffusion barrier are oriented out.But practical incident light angle is -90 ° to 90 °, however
Luminous energy is concentrated the most in the distribution of vertical direction attachment, and luminous energy very little entrained by the light of wide-angle can be ignored, therefore
For most of light after orienting diffusion barrier, deviation angle is 20 °.According to the law of refraction of light, the non-structural of diffusion barrier is oriented
When face is incidence surface, the effect of deflection of light can be only achieved, therefore its micro-structure in assembly of this optical film is facing towards liquid
Crystalline substance screen.
In a preferred embodiment of the invention, in order to improve the visuality under the big visual angle of liquid crystal display, function is reduced
Consumption guarantees that the information on display screen is clearly visible, and the micro-structure includes: in the more of orientation 1 upper surface of diffusion barrier formation
A groove structure being sequentially arranged.
In a preferred embodiment of the invention, in order to improve the visuality under the big visual angle of liquid crystal display, function is reduced
Consumption guarantees that the information on display screen is clearly visible, and the groove structure is chamfer type groove.
In a preferred embodiment of the invention, in order to improve the visuality under the big visual angle of liquid crystal display, function is reduced
Consumption guarantees that the information on display screen is clearly visible, and the bevel edge of the chamfer type groove and the angle of its vertical edge are 20-45 °.
In a preferred embodiment of the invention, in order to improve the visuality under the big visual angle of liquid crystal display, function is reduced
Consumption guarantees that the information on display screen is clearly visible, and the liquid crystal display further includes display screen, on the orientation diffusion barrier 1
Micro-structure is towards the display screen.
In a preferred embodiment of the invention, in order to improve the visuality under the big visual angle of liquid crystal display, function is reduced
Consumption guarantees that the information on display screen is clearly visible, and the refractive index of the orientation diffusion barrier 1 is 1.48-1.49.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (6)
1. a kind of liquid crystal display with visual angle deviation, which is characterized in that the liquid crystal display includes from top to bottom sequentially
Orientation diffusion barrier (1), binding layer (2) and the optics group mould (3) of setting；
The upper surface of orientation diffusion barrier (1) is provided with micro-structure, for playing the role of deflection of light；
The binding layer (2) is formed by optical cement, the total reflection phenomenon for destroying between optics group mould (3).
2. liquid crystal display according to claim 1, which is characterized in that the micro-structure includes: to spread in the orientation
Multiple groove structures being sequentially arranged that film (1) upper surface is formed.
3. liquid crystal display according to claim 2, which is characterized in that the groove structure is chamfer type groove.
4. liquid crystal display according to claim 3, which is characterized in that the bevel edge of the chamfer type groove is vertical with it
The angle on side is 20-45 °.
5. liquid crystal display according to claim 1, which is characterized in that the liquid crystal display further includes display screen, institute
The micro-structure in orientation diffusion barrier (1) is stated towards the display screen.
6. liquid crystal display according to claim 1, which is characterized in that it is described orientation diffusion barrier (1) refractive index be
1.48-1.49。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910479822.5A CN110262112A (en) | 2019-06-04 | 2019-06-04 | Liquid crystal display with visual angle deviation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910479822.5A CN110262112A (en) | 2019-06-04 | 2019-06-04 | Liquid crystal display with visual angle deviation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110262112A true CN110262112A (en) | 2019-09-20 |
Family
ID=67916613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910479822.5A Pending CN110262112A (en) | 2019-06-04 | 2019-06-04 | Liquid crystal display with visual angle deviation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110262112A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111580308A (en) * | 2020-07-03 | 2020-08-25 | 上海天马微电子有限公司 | Backlight module and display device |
| CN113204135A (en) * | 2021-05-26 | 2021-08-03 | 中航华东光电有限公司 | Liquid crystal display screen with visual angle control |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20190920 |