CN108399896A - A kind of display device and its driving method - Google Patents
A kind of display device and its driving method Download PDFInfo
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- CN108399896A CN108399896A CN201810186423.5A CN201810186423A CN108399896A CN 108399896 A CN108399896 A CN 108399896A CN 201810186423 A CN201810186423 A CN 201810186423A CN 108399896 A CN108399896 A CN 108399896A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
This application provides a kind of display device and its driving methods, and wherein display device includes backlight module and display module, and the display module includes the display panel being stacked and light adjustment module；The backlight module, for providing backlight to the display module；The smooth adjustment module, in the preset time period of every frame picture, the transmitance of incident light to be adjusted to less than preset value；The application is modulated incident light by light adjustment module so that the incident light in per frame picture preset time period will not enter human eye, i.e., picture show completely black within a preset period of time, to realize that black plug is handled, eliminates persistence of vision, improvement trailing phenomenon.
Description
Technical field
The present invention relates to technical field of display panel, more particularly to a kind of display device and its driving method.
Background technology
In recent years, the application of virtual reality (VR) is more and more extensive.It is to show tool respectively using display device that VR, which is shown,
There are the left images of parallax, the right and left eyes of observer receive corresponding picture respectively, then are synthesized by brain, to fictionalize object
The radial depth of body, to realize the 3D impressions of immersion.But VR shows the ability for needing display to have quick response,
Otherwise phenomena such as just will appear trailing phenomenon, making the 3D rendering observed that " ghost " occur, the experience effect of people is influenced.
Trailing phenomenon is due to many factors such as the special imaging mechanism of human eye and display panel response time length itself
Caused, the response speed room for promotion of display panel is smaller and smaller at present, for showing tailing problem, people in the art
Member finds thorough solution not yet.
Invention content
A kind of display device of present invention offer and its driving method are asked with solving picture hangover existing in the prior art
Topic.
To solve the above-mentioned problems, the invention discloses a kind of display devices, including：Backlight module and display module, institute
It includes the display panel being stacked and light adjustment module to state display module；
The backlight module, for providing backlight to the display module；
The smooth adjustment module, in the preset time period of every frame picture, the transmitance of incident light being adjusted to low
In preset value.
Preferably, the smooth adjustment module is arranged between the backlight module and the display panel；Alternatively, described aobvious
Show that panel is arranged between the backlight module and the smooth adjustment module.
Preferably, the smooth adjustment module is blue phase liquid crystal box；
The blue phase liquid crystal box, in the preset time period of every frame picture, passing through blue phase in the blue phase liquid crystal box
The transmitance of incident light is adjusted to less than preset value by the deflection of liquid crystal.
Preferably, the blue phase liquid crystal box includes：The first substrate and second substrate being oppositely arranged, the first polaroid, the
Two polaroids, electrode structure and the filling blue phase liquid crystal between second substrate between the first substrate and the second substrate；
The electrode structure, setting between the first substrate and the second substrate, for generating electric field, make described
Blue phase liquid crystal deflects；
The first substrate is arranged close to the display panel；
First polaroid is arranged on surface of the first substrate far from the blue phase liquid crystal, and described first partially
The polarisation axis direction of mating plate, the polarisation axis direction phase with the third polaroid of the close first substrate on the display panel
Together；
Second polaroid is arranged on surface of the second substrate far from the blue phase liquid crystal, and described second partially
The polarisation axis direction of mating plate, it is vertical with the polarisation axis direction of the first polaroid.
Preferably, first polaroid synthesizes the blue phase liquid crystal box and the display surface with the third polaroid
The shared polaroid of plate.
Preferably, the electrode structure includes：The first electrode of bar shaped and the second electrode of bar shaped；
The first electrode and the second electrode are arranged alternately in the first substrate or the second substrate close to institute
It states on the surface of blue phase liquid crystal, there is spacing between adjacent first electrode and second electrode.
To solve the above-mentioned problems, the invention also discloses a kind of driving methods of display device, are applied to such as above-mentioned
Display device described in one, the driving method include：
By the backlight module backlight is provided to the display module；
By the smooth adjustment module, in the preset time period of every frame picture, the transmitance of incident light is adjusted to low
In preset value.
Preferably, the preset time period per frame picture is greater than or equal to the ratio per frame image time section
70%, and it is less than 100%.
Preferably, the preset time period per frame picture and the ratio per frame image time section are 90%.
Preferably, when the optical switch module is blue phase liquid crystal box, by the smooth adjustment module, in every frame picture
In preset time period, the step of the transmitance of incident light is adjusted to less than preset value, including：
In the preset time period of every frame picture, by the deflection of blue phase liquid crystal in the blue phase liquid crystal box, by incident light
Transmitance be adjusted to less than preset value.
Compared with prior art, the present invention includes following advantages：
This application provides a kind of display device and its driving methods, and wherein display device includes backlight module and display mould
Block, the display module include the display panel being stacked and light adjustment module；The backlight module is used for the display
Module provides backlight；The smooth adjustment module, in the preset time period of every frame picture, the transmitance of incident light to be adjusted
To less than preset value；The application is modulated incident light by light adjustment module so that per in frame picture preset time period
Incident light will not enter human eye, i.e., within a preset period of time picture show it is completely black, to realize black plug handle, elimination vision it is residual
It stays, improves trailing phenomenon.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 shows a kind of structural schematic diagram for display device that one embodiment of the invention provides；
The schematic diagram of light modulation process in a kind of display device provided Fig. 2 shows one embodiment of the invention；
Fig. 3 shows the structural schematic diagram for another display device that one embodiment of the invention provides；
Fig. 4 shows the schematic diagram of light modulation process in another display device that one embodiment of the invention provides；
Fig. 5 shows a kind of structural schematic diagram for blue phase liquid crystal box that one embodiment of the invention provides；
Fig. 6 shows the structural schematic diagram of electrode structure in a kind of blue phase liquid crystal box that one embodiment of the invention provides；
Fig. 7 shows a kind of step flow chart for display drive method that one embodiment of the invention provides；
Reference sign：
11- backlight modules；12- display modules；13- display panels；14- light adjustment modules；51- first substrates；52- second
Substrate；The first polaroids of 53-；The second polaroids of 54-；55- blue phase liquid crystals；61- first electrodes；62 second electrodes.
Specific implementation mode
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
In one embodiment of the application, referring to Fig.1, a kind of display device is provided, which may include：Backlight
Module 11 and display module 12, display module 12 may include the display panel 13 being stacked and light adjustment module 14；Backlight
Module 11, for providing backlight to display module 12；Light adjustment module 14 is used in the preset time period of every frame picture, will
The transmitance of incident light is adjusted to less than preset value.
In a kind of realization method of the present embodiment, referring to Fig.1, light adjustment module 14 is arranged in backlight module 11 and display surface
Between plate 13.During every frame picture, backlight module 11 is always on, and backlight is provided to light adjustment module 14.In every frame picture
Preset time period in, such as the preset time period can be the 90% of every frame image time section, will be entered by light adjustment module 14
The transmitance for penetrating light is adjusted to less than preset value, i.e. incident light becomes the pulse that duty ratio is 10% after light adjustment module 14
Light.Realize that grayscale show using display panel 13, it is, in often 90% period of frame picture pixel show it is completely black, most
The picture display times that whole human eye receives only account for the 10% of every frame picture, to realize that black plug is handled.A such as frame image time
For 5ms, after light adjustment module 14 carries out black plug processing, the picture display times that human eye receives become 0.5ms, to thoroughly
Persistence of vision is eliminated, trailing phenomenon is eliminated.Wherein, viewer is subject in the setting of preset value to perceive, in practical applications
It can be determined according to the factors such as the transmitance of display panel and the photosensitive threshold value of viewer.Light is specific in this realization method
Modulated process is referred to Fig. 2, and Fig. 2 shows the light modulation processes of three frame pictures.
In another realization method of the present embodiment, with reference to Fig. 3, the setting of display panel 13 is adjusted in backlight module 11 and light
Between module 14.During every frame picture, backlight module 11 is always on, provides backlight to display panel 13, light is by display
Realize that different grayscale is shown after panel 13, picture at this time still has trailing phenomenon.Light after display panel 13 is again
By light adjustment module 14, equally in 90% preset time period of every frame picture, by light adjustment module 14 by the saturating of incident light
The rate of mistake is adjusted to less than preset value, i.e. incident light becomes the pulsed light that duty ratio is 10% after light adjustment module 14, also
It is that the picture display times that final human eye receives only account for the 10% of every frame picture, to thoroughly eliminate persistence of vision, realizes black plug
Trailing phenomenon is eliminated in processing.Wherein, viewer is subject in the setting of preset value to perceive, in practical applications can basis
The factors such as the photosensitive threshold value of viewer determine.The specific modulated process of light is referred to shown in Fig. 4 in this realization method, Fig. 4
Show the light modulation process of three frame pictures.
Specifically, backlight module 11 can be the arbitrary backlight module for being capable of providing backlight.
Light adjustment module 14 can be blue phase liquid crystal box, can also be OCB (optically compensated
Birefringence) liquid crystal cell, but both are not limited only to, it is all to be that by the preset time period of every frame picture, it will
The transmitance of incident light is adjusted to the device less than preset value, all within the protection domain of the application.
A kind of display device is present embodiments provided, incident light is modulated by light adjustment module so that is drawn per frame
Incident light in the preset time period of face will not enter human eye, i.e., within a preset period of time picture show it is completely black, to realize black plug
Persistence of vision is eliminated in processing, improves trailing phenomenon.
Specifically, the light adjustment module 14 in above-described embodiment can be blue phase liquid crystal box, which is used for
In preset time period per frame picture, by the deflection of blue phase liquid crystal in blue phase liquid crystal box, the transmitance of incident light is adjusted to
Less than preset value.It, can be with by the quick deflection of blue phase liquid crystal since the response time of blue phase liquid crystal is about in sub- millisecond magnitude
It realizes the modulated in real time to incident light, to realize the control to picture display time, black plug processing is carried out to display image.
Specifically, with reference to Fig. 5, above-mentioned blue phase liquid crystal box may include：The first substrate 51 and second substrate being oppositely arranged
52, the first polaroid 53, the second polaroid 54, electrode structure and the indigo plant being filled between first substrate 51 and second substrate 52
Phase liquid crystal 55.Electrode structure can be arranged between first substrate 51 and second substrate 52, for generating electric field, make blue phase liquid crystal
55 deflections；First substrate 51 can be arranged close to display panel 13；First polaroid 53 can be arranged separate in first substrate 51
On the surface of blue phase liquid crystal 55, the third of the polarisation axis direction of the first polaroid 53 and close first substrate 51 on display panel 13
The polarisation axis direction of polaroid is identical；Second polaroid 54 can be arranged on surface of the second substrate 52 far from blue phase liquid crystal 55
On, the polarisation axis direction of the second polaroid 54 is vertical with the polarisation axis direction of the first polaroid 53.
It should be noted that the polarisation axis direction of the first polaroid 53 and the polarisation axis direction of third polaroid can be removed
Other any angles except vertical.In order to improve the utilization rate of light, the preferably polarisation of the first polaroid 53 and third polaroid
Axis direction is identical, and the light being at this moment emitted by display panel 13, which enters, to be emitted inside blue phase liquid crystal box or by blue phase liquid crystal box
Light enters the efficiency highest inside display panel 13.In order to reduce cost, the first polaroid 53 can be same with third polaroid
One polaroid, that is, display panel 13 share same polarisation with the adjacent side surface of blue phase liquid crystal box with first substrate 51
Piece.
Specifically, with reference to Fig. 6, above-mentioned electrode structure may include the first electrode 61 of bar shaped and the second electrode of bar shaped
62；First electrode 61 and second electrode 62 are arranged alternately in first substrate 51 or second substrate 52 close to the surface of blue phase liquid crystal 55
On, there is spacing between adjacent first electrode 61 and second electrode 62.The first electrode 61 and second electrode 62 being arranged alternately
Transverse electric field is formed inside blue phase liquid crystal box, blue phase liquid crystal 55 deflects under the action of the electric field.By adjusting the big of electric field
It is small, the deflection angle of blue phase liquid crystal is controlled, and under the collective effect of the first polaroid 53 and the second polaroid 54, realized to entering
Penetrate the modulation of light transmission rate.
In practical applications, electrode structure can also use other structures, such as first electrode 61 and second electrode 62 are also
It can be separately positioned on two opposite substrate inner surfaces.The application is not limited only to above-mentioned electrode structure, every to produce
The raw electrode structure for making 55 deflecting electric field of blue phase liquid crystal, all within the application protection domain.
Blue phase liquid crystal box in above-described embodiment can carry out whole face driving, not need to distinguish dot structure, so making work
Skill is simple, is all easily achieved in design and technique.
Currently, in order to improve the trailing phenomenon of display device, it is common practice that carry out black plug processing, example to backlight BLU
Such as, in the time of a frame picture, 10% time BLU is in illuminating state, and the time of residue 90% is in dark-state, by this
Method can improve picture trailing phenomenon caused by display panel itself is grown due to the response time.But in order to show higher
Colour gamut, it will usually using RG powder LED BLU come display panel of arranging in pairs or groups, but due to the inherent characteristic of RG powder LED, lead to its nothing
Method carries out black plug processing, however it remains picture trailing phenomenon.And the application is carried out by light adjustment module, such as blue phase liquid crystal box
The scheme of light modulation is suitable for all backlight modules, can carry out black plug processing to display picture, therefore this programme can be thorough
Bottom solves tailing problem in the prior art.
In another embodiment of the application, with reference to Fig. 7, a kind of driving method of display device is additionally provided, is applied to above-mentioned
Display device described in any one embodiment, the driving method may include：
Step 701：By backlight module backlight is provided to display module.
Step 702：By light adjustment module, in the preset time period of every frame picture, the transmitance of incident light is adjusted
To less than preset value.
Wherein, the preset time period per frame picture is greater than or equal to 70% with the ratio per frame image time section, and is less than
100%.It is, human eye, which receives, shows that the period of picture is more than 0% with the ratio per frame image time section, and it is less than or waits
In 30%.
In order to obtain best picture display effect, the preset time period per frame picture and the ratio per frame image time section
It is 90%.It is, human eye, which receives, shows that the period of picture and the ratio per frame image time section are 10%.
Specific light modulation process is referred to the description of above-described embodiment, and which is not described herein again.
When the optical switch module is blue phase liquid crystal box, above-mentioned steps 702 may further include：
In the preset time period of every frame picture, by the deflection of blue phase liquid crystal in blue phase liquid crystal box, by the saturating of incident light
The rate of mistake is adjusted to less than preset value.
Wherein, in blue phase liquid crystal box blue phase liquid crystal deflection, can pass through blue phase liquid crystal box inner electrode generate electricity
It adjusts.
This application provides a kind of display device and its driving methods, and wherein display device includes backlight module and display mould
Block, the display module include the display panel being stacked and light adjustment module；The backlight module is used for the display
Module provides backlight；The smooth adjustment module, in the preset time period of every frame picture, the transmitance of incident light to be adjusted
To less than preset value；The application is modulated incident light by light adjustment module so that per in frame picture preset time period
Incident light will not enter human eye, i.e., within a preset period of time picture show it is completely black, to realize black plug handle, elimination vision it is residual
It stays, improves trailing phenomenon.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiment, the same or similar parts between the embodiments can be referred to each other.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, commodity or equipment including a series of elements include not only that
A little elements, but also include other elements that are not explicitly listed, or further include for this process, method, commodity or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in process, method, commodity or the equipment including the element.
A kind of display device provided by the present invention and its driving method are described in detail above, it is used herein
Principle and implementation of the present invention are described for specific case, and the explanation of above example is only intended to help to understand
The method and its core concept of the present invention；Meanwhile for those of ordinary skill in the art, according to the thought of the present invention, having
There will be changes in body embodiment and application range, in conclusion the content of the present specification should not be construed as to the present invention
Limitation.
Claims (10)
1. a kind of display device, which is characterized in that including：Backlight module and display module, the display module include that stacking is set
The display panel and light adjustment module set；
The backlight module, for providing backlight to the display module；
The smooth adjustment module, in the preset time period of every frame picture, the transmitance of incident light to be adjusted to less than pre-
If value.
2. display device according to claim 1, which is characterized in that
The smooth adjustment module is arranged between the backlight module and the display panel；Alternatively,
The display panel is arranged between the backlight module and the smooth adjustment module.
3. display device according to claim 1 or 2, which is characterized in that the smooth adjustment module is blue phase liquid crystal box；
The blue phase liquid crystal box, in the preset time period of every frame picture, passing through blue phase liquid crystal in the blue phase liquid crystal box
Deflection, the transmitance of incident light is adjusted to less than preset value.
4. display device according to claim 3, which is characterized in that the blue phase liquid crystal box includes：Be oppositely arranged
One substrate and second substrate, the first polaroid, the second polaroid and are filled in the first substrate and described the at electrode structure
Blue phase liquid crystal between two substrates；
The electrode structure, setting between the first substrate and the second substrate, for generating electric field, make the blue phase
Liquid crystal deflection；
The first substrate is arranged close to the display panel；
First polaroid is arranged on surface of the first substrate far from the blue phase liquid crystal, first polaroid
Polarisation axis direction, on the display panel close to the polarisation axis direction of third polaroid of the first substrate it is identical；
Second polaroid is arranged on surface of the second substrate far from the blue phase liquid crystal, second polaroid
Polarisation axis direction, it is vertical with the polarisation axis direction of the first polaroid.
5. display device according to claim 4, which is characterized in that first polaroid is closed with the third polaroid
As the shared polaroid of the blue phase liquid crystal box and the display panel.
6. display device according to claim 4, which is characterized in that the electrode structure includes：The first electrode of bar shaped
With the second electrode of bar shaped；
The first electrode and the second electrode are arranged alternately in the first substrate or the second substrate close to the indigo plant
On the surface of phase liquid crystal, there is spacing between adjacent first electrode and second electrode.
7. a kind of driving method of display device is applied to such as claim 1 to 6 any one of them display device, feature
It is, the driving method includes：
By the backlight module backlight is provided to the display module；
By the smooth adjustment module, in the preset time period of every frame picture, the transmitance of incident light is adjusted to less than pre-
If value.
8. driving method according to claim 7, which is characterized in that the preset time period per frame picture with it is described every
The ratio of frame image time section is greater than or equal to 70%, and is less than 100%.
9. driving method according to claim 7, which is characterized in that the preset time period per frame picture with it is described every
The ratio of frame image time section is 90%.
10. driving method according to any one of claims 7 to 9, which is characterized in that when the optical switch module is blue phase
When liquid crystal cell, by the smooth adjustment module, in the preset time period of every frame picture, the transmitance of incident light is adjusted to low
In the preset value the step of, including：
In the preset time period of every frame picture, by the deflection of blue phase liquid crystal in the blue phase liquid crystal box, by the saturating of incident light
The rate of mistake is adjusted to less than preset value.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114913821A (en) * | 2022-05-31 | 2022-08-16 | 合肥京东方显示技术有限公司 | Display module, control method thereof and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114913821A (en) * | 2022-05-31 | 2022-08-16 | 合肥京东方显示技术有限公司 | Display module, control method thereof and display device |
| CN114913821B (en) * | 2022-05-31 | 2024-03-22 | 合肥京东方显示技术有限公司 | Display module, control method thereof and display device |
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