CN110111749A - A kind of Liquid Crystal Display And Method For Driving - Google Patents
A kind of Liquid Crystal Display And Method For Driving Download PDFInfo
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- CN110111749A CN110111749A CN201910526508.8A CN201910526508A CN110111749A CN 110111749 A CN110111749 A CN 110111749A CN 201910526508 A CN201910526508 A CN 201910526508A CN 110111749 A CN110111749 A CN 110111749A
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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
-
- 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
- G09G3/3413—Details of control of colour illumination sources
-
- 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
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The embodiment of the present invention provides a kind of Liquid Crystal Display And Method For Driving, and liquid crystal display includes: the first liquid crystal display panel, backlight module and the second liquid crystal display panel；Second liquid crystal display panel is between the first liquid crystal display panel and backlight module；First liquid crystal display panel includes the first array substrate, color membrane substrates and the first liquid crystal layer between the first array substrate and color membrane substrates；First liquid crystal display panel includes the first sub-pixel of multiple array arrangements；Second liquid crystal display panel includes second array substrate and the second liquid crystal layer；Second liquid crystal layer is between the first array substrate and second array substrate；Second liquid crystal display panel includes the second sub-pixel of multiple array arrangements；Backlight module includes the light emitting region of multiple array arrangements, and each light emitting region includes at least one light emitting diode；The driving voltage or driving current of different light emitting regions are adjustable.The embodiment of the present invention provides a kind of Liquid Crystal Display And Method For Driving, improves image display contrast to realize.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of Liquid Crystal Display And Method For Drivings.
Background technique
With the development of science and technology and social progress, dependence journey of the people for exchange and the transmitting etc. of information
Benefit of subsisting increases, and main carriers and material base of the display as information exchange and transmitting, has become numerous scientists
The hot spot of research.
Currently, the dark region is dark enough in order to which the region for keeping this bright is bright enough, the technology for being often used local light modulation includes
Double screen technique.In double screen technique, the liquid crystal surface of local light modulation is irradiated to using the light beam that conventional backlight issues uniform luminance
Plate is realized local light modulation, is dimmed by domain by the control of the deflection angle of liquid crystal molecule in the liquid crystal display panel of local area light modulation
Liquid crystal display panel after light beam be irradiated on the liquid crystal display panel of display and project final image to user.But image display comparison
There are still the spaces further increased for degree.
Summary of the invention
The present invention provides a kind of Liquid Crystal Display And Method For Driving, improves image display contrast to realize.
In a first aspect, the embodiment of the present invention provides a kind of liquid crystal display, comprising: the first liquid crystal display panel, backlight module with
And second liquid crystal display panel；Second liquid crystal display panel is between first liquid crystal display panel and the backlight module；
First liquid crystal display panel is including the first array substrate, color membrane substrates and is located at first array substrate and institute
State the first liquid crystal layer between color membrane substrates；First liquid crystal display panel includes the first sub-pixel of multiple array arrangements；
Second liquid crystal display panel includes second array substrate and the second liquid crystal layer；Second liquid crystal layer is located at described the
Between array basal plate and the second array substrate；Second liquid crystal display panel includes the second sub- picture of multiple array arrangements
Element；
The backlight module includes the light emitting region of multiple array arrangements, and each light emitting region includes at least one hair
Optical diode；The driving voltage or driving current of the different light emitting regions are adjustable；
Wherein, each second sub-pixel is corresponding covers multiple first sub-pixels；Each light emitting region covers multiple institutes
The second sub-pixel is stated, each light emitting region provides backlight for multiple second sub-pixels.
Second aspect, the embodiment of the present invention provide a kind of driving method of liquid crystal display, comprising:
Image to be displayed is obtained, the aobvious of each first sub-pixel of the first liquid crystal display panel is determined according to the image to be displayed
Show brightness；
According to the first corresponding relationship and each institute of the second sub-pixel of the second liquid crystal display panel and first sub-pixel
The display brightness for stating the first sub-pixel determines the display brightness of second sub-pixel；First corresponding relationship includes: each
Second sub-pixel is corresponding to cover multiple first sub-pixels；When one first sub-pixel shows luminous, corresponding covering
Second sub-pixel of first sub-pixel, which is shown, to shine；The whole of the corresponding covering of one second sub-pixel described the
When one sub-pixel shows zero luminance, second sub-pixel shows zero luminance；
According to the second corresponding relationship and each described second of the light emitting region of backlight module and second sub-pixel
The display brightness of sub-pixel determines the driving voltage or driving current of the light emitting region；Second corresponding relationship includes: every
A light emitting region is corresponding to cover multiple second sub-pixels；When one second sub-pixel shows luminous, corresponding covering
The light emitting region of second sub-pixel, which is shown, to shine, and the light emitting region to show luminous provides driving voltage or drive
Streaming current；When whole second sub-pixel of the corresponding covering in one light emitting region shows zero luminance, the light emitting region
Show zero luminance；
Wherein, the liquid crystal display includes: the first liquid crystal display panel, backlight module and the second liquid crystal display panel；Described
Two liquid crystal display panels are between first liquid crystal display panel and the backlight module；First liquid crystal display panel includes the first array
Substrate, color membrane substrates and the first liquid crystal layer between first array substrate and the color membrane substrates；Described first
Liquid crystal display panel includes the first sub-pixel of multiple array arrangements；Second liquid crystal display panel includes second array substrate and the second liquid
Crystal layer；Second liquid crystal layer is between first array substrate and the second array substrate；Second liquid crystal surface
Plate includes the second sub-pixel of multiple array arrangements；The backlight module includes the light emitting region of multiple array arrangements, Mei Yisuo
Stating light emitting region includes at least one light emitting diode.
In the embodiment of the present invention, liquid crystal display includes for the first liquid crystal display panel of display and for the of local light modulation
Two liquid crystal display panels, liquid crystal display further include being located at backlight module of second liquid crystal display panel far from the first liquid crystal display panel side, back
After the illuminating bundle that optical mode group provides first passes around the progress local light modulation of the second liquid crystal display panel, it is then irradiated to the first liquid crystal display panel
And the first liquid crystal display panel is made to show picture.In the embodiment of the present invention, backlight module includes the adjustable luminous zone of multiple light emission luminance
Domain, so that backlight module and the second liquid crystal display panel play the role of local light modulation, to improve image display contrast.
On the other hand, since lesser driving voltage or driving current can be provided for the corresponding light emitting region in the darker position of picture,
Therefore the power consumption of backlight module can be reduced, to reduce the power consumption of liquid crystal display.
Detailed description of the invention
Fig. 1 is a kind of overlooking structure diagram of liquid crystal display provided in an embodiment of the present invention；
Fig. 2 is the overlooking structure diagram of another liquid crystal display provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of the section structure of the AA ' along Fig. 2；
Fig. 4 is the schematic diagram of the section structure of another liquid crystal display provided in an embodiment of the present invention；
Fig. 5 is the overlooking structure diagram of another liquid crystal display provided in an embodiment of the present invention；
Fig. 6 is the schematic diagram of the section structure of the BB ' along Fig. 5；
Fig. 7 is the overlooking structure diagram of the first liquid crystal display panel provided in an embodiment of the present invention；
Fig. 8 is the overlooking structure diagram of the second liquid crystal display panel provided in an embodiment of the present invention；
Fig. 9 is the overlooking structure diagram of backlight module provided in an embodiment of the present invention；
Figure 10 is the overlooking structure diagram of another liquid crystal display provided in an embodiment of the present invention；
Figure 11 is the schematic diagram of the section structure of another liquid crystal display provided in an embodiment of the present invention；
Figure 12 is the schematic diagram of the section structure of another liquid crystal display provided in an embodiment of the present invention；
Figure 13 is the schematic diagram of the section structure of another liquid crystal display provided in an embodiment of the present invention；
Figure 14 is the schematic diagram of the section structure of another liquid crystal display provided in an embodiment of the present invention；
Figure 15 is the structural schematic diagram of another liquid crystal display provided in an embodiment of the present invention；
Figure 16 is a kind of driving method flow chart of liquid crystal display provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Fig. 1 is a kind of overlooking structure diagram of liquid crystal display provided in an embodiment of the present invention, and Fig. 2 is that the present invention is implemented
The overlooking structure diagram for another liquid crystal display that example provides, Fig. 3 are the schematic diagram of the section structure of the AA ' along Fig. 2,
In, Fig. 1 illustrates the distribution of the first sub-pixel 100, the second sub-pixel 200 and light emitting region 300.With reference to Fig. 1, Fig. 2 and figure
3, liquid crystal display includes the first liquid crystal display panel 10, backlight module 30 and the second liquid crystal display panel 20, the second liquid crystal display panel 20
Between the first liquid crystal display panel 10 and backlight module 30.First liquid crystal display panel 10 includes the first array substrate 11, color membrane substrates 12
And the first liquid crystal layer 13 between the first array substrate 11 and color membrane substrates 12, the first liquid crystal display panel 10 include multiple battle arrays
Arrange the first sub-pixel 100 of arrangement.Second liquid crystal display panel 20 includes second array substrate 21 and the second liquid crystal layer 22.Second liquid crystal
Layer 22 is between the first array substrate 11 and second array substrate 21.Second liquid crystal display panel 20 includes the of multiple array arrangements
Two sub-pixels 200.Backlight module 30 includes the light emitting region 300 of multiple array arrangements, and each light emitting region 300 includes at least one
A light emitting diode 31.The driving voltage or driving current of different light emitting regions 300 are adjustable.Wherein, each second sub-pixel 200
Corresponding to cover multiple first sub-pixels 100, each light emitting region 300 covers multiple second sub-pixels 200, each light emitting region
300 provide backlight for multiple second sub-pixels 200.
Illustratively, with reference to Fig. 1, Fig. 2 and Fig. 3, each light emitting region 300 covers 4 the second sub-pixels 200, each
Second sub-pixel 200 covers 16 the first sub-pixels 100.Multiple light emitting regions 300 can have different light emission luminance, can be with
It is considered that the first order dims.The driving voltage or driving current of light emitting region 300 can be light emitting diode in light emitting region 300
31 driving voltage or driving current, the light emission luminance of light emitting region 300 can by the driving voltage of light emitting diode 31 or
Electricity is driven to adjust.Multiple second sub-pixels 200 that same light emitting region 300 covers can have different transmitances, thus
So that multiple second sub-pixels 200 show different brightness, it is believed that be second level light modulation, the transmission of the second sub-pixel 200
Rate can be adjusted by the driving voltage or driving current of the corresponding pixel electrode 25 of the second sub-pixel 200.Same second
Multiple first sub-pixels 100 that sub-pixel 200 covers can have different transmitances, so that multiple first sub-pixels
The different brightness of 100 displays, it is believed that be third level light modulation, the transmitance of the first sub-pixel 100 can pass through the first sub- picture
The driving voltages of plain 100 corresponding first panel pixel electrodes 191 or driving current are adjusted.Light emitting region 300 covers more
A second sub-pixel 200 refers to that multiple second sub-pixels 200 are located at a luminous zone in the orthographic projection of second array substrate 21
Domain 300 is in the orthographic projection of second array substrate 21.Second sub-pixel 200 cover multiple first sub-pixels 100 refer to it is multiple
First sub-pixel 100 is located at second sub-pixel 200 in second array substrate 21 in the orthographic projection of second array substrate 21
In orthographic projection.
In the embodiment of the present invention, liquid crystal display includes for the first liquid crystal display panel of display and for the of local light modulation
Two liquid crystal display panels, liquid crystal display further include being located at backlight module of second liquid crystal display panel far from the first liquid crystal display panel side, back
After the illuminating bundle that optical mode group provides first passes around the progress local light modulation of the second liquid crystal display panel, it is then irradiated to the first liquid crystal display panel
And the first liquid crystal display panel is made to show picture.It is understood that in order to realize multistage light modulation, it can be in backlight module and the first liquid
Multiple second liquid crystal display panels are added between crystal panel, due to second liquid crystal display panel itself and non-fully light transmission, the second liquid crystal display panel
A certain sub-pixel even adjust to highest grayscale and can also have absorption to light, therefore just need increasing by the second liquid crystal display panel
While increase backlight module driving voltage or driving current, increase power consumption, and multiple second liquid crystal display panels can also be led
Cause the increase of liquid crystal display cost.In the embodiment of the present invention, backlight module includes the adjustable light emitting region of multiple light emission luminance,
So that backlight module and the second liquid crystal display panel play the role of local light modulation, to improve image display contrast.Separately
On the one hand, since lesser driving voltage or driving current can be provided for the corresponding light emitting region in the darker position of picture, because
This can reduce the power consumption of backlight module, to reduce the power consumption of liquid crystal display.
Optionally, with reference to Fig. 3, backlight module 30 further includes diffuser plate 32, and it is separate that light emitting diode 31 is located at diffuser plate 32
Second liquid crystal display panel, 20 side.Backlight module 30 is down straight aphototropism mode set, and the light that light emitting diode 31 issues is towards Z-direction
It is irradiated to diffuser plate 32, and is irradiated on the second liquid crystal display panel 20 after diffuser plate 32 is spread uniformly.
Optionally, with reference to Fig. 3, backlight module 30 may include being located at back of the diffuser plate 32 far from 31 side of light emitting diode
Light diffusing sheet 33 and brightness enhancement film 34, backlight diffusion sheet 33 is between diffuser plate 32 and brightness enhancement film 34.The thickness of backlight diffusion sheet 33
Degree is less than the thickness of diffuser plate 32.Diffuser plate 32 spread after light beam by backlight diffusion sheet 33 further diffusion after Luminance Distribution
More uniformly.First liquid crystal display panel 10 can also include color blocking 14 and the first black matrix 15, and color blocking 14 can be located at two neighboring
Between first black matrix 15.Optionally, the region between two neighboring first black matrix 15 can be for where the first sub-pixel 100
Region.Color blocking 14 for example may include red color resistance, green color blocking and blue color blocking.It is shown across the light of red color resistance red
Color, the light across green color blocking show green, and the light across blue color blocking is displayed in blue.First liquid crystal layer 13 can be located at first
In the enclosure space that array substrate 11, color membrane substrates 12 and the first sealant (being not shown in Fig. 4) are formed, the second liquid crystal layer 22 can
To be located in the enclosure space that the first array substrate 11, second array substrate 21 and the second sealant (being not shown in Fig. 4) are formed.
In the embodiment of the present invention, the second liquid crystal display panel 20 has shared the first array substrate 11 of the first liquid crystal display panel 10, to reduce
The usage quantity of substrate is thinned the thickness of liquid crystal display.
Fig. 4 is the schematic diagram of the section structure of another liquid crystal display provided in an embodiment of the present invention, with reference to Fig. 4, second
Liquid crystal display panel 20 further includes counter substrate 24, and counter substrate 24 is oppositely arranged with second array substrate 21, the second liquid crystal layer 22
Between counter substrate 24 and second array substrate 21, the second liquid crystal layer 22 can be located at counter substrate 24, second array substrate
21 and third sealant (being not shown in Fig. 5) formed enclosure space in.Second liquid crystal display panel 20 further includes the second black matrix 23,
Second black matrix 23 is located at counter substrate 24 adjacent to 21 side of second array substrate.Optionally, two neighboring second black matrix 23
Between region can region where the second sub-pixel 200.In the embodiment of the present invention, the first liquid crystal display panel 10 and the second liquid
Crystal panel 20 can be independently fabricated separately, and the first liquid crystal display panel 10 and the second liquid crystal display panel 20 can be made of existing panel
Technique is formed, and the manufacture craft of the first liquid crystal display panel 10 and the second liquid crystal display panel 20 is had not been changed, to reduce liquid crystal display
Manufacture difficulty.
Fig. 5 is the overlooking structure diagram of another liquid crystal display provided in an embodiment of the present invention, and Fig. 6 is along Fig. 5
The schematic diagram of the section structure of BB ', with reference to Fig. 5 and Fig. 6, backlight module 30 includes light guide plate 35, and light emitting diode 31 is located at leaded light
The side end face of plate 35, the light emission direction of light emitting diode 31 are parallel to 35 place plane of light guide plate.Optionally, the side of light guide plate 35
End face is vertical adjacent to the surface of 20 side of the second liquid crystal display panel with light guide plate 35.Light guide plate 35 is located at second array substrate 21 and deviates from
The side of second liquid crystal layer 22, the light that the light emitting diode 31 of each light emitting region 300 issues are at least one by light guide plate 35
The second sub-pixel of row 200 provides backlight.Backlight module 30 is side entrance back module, and the light that light emitting diode 31 issues is towards X
Axis direction is irradiated to light guide plate 35, and is irradiated on the second liquid crystal display panel 20 after the conduction of light guide plate 35.
Optionally, with reference to Fig. 6, backlight module 30 may include the back between light guide plate 35 and the second liquid crystal display panel 20
Light diffusing sheet 33 and brightness enhancement film 34, backlight diffusion sheet 33 is between light guide plate 35 and brightness enhancement film 34.After light guide plate 35 conducts
Light beam light beam after the diffusion of backlight diffusion sheet 33 becomes more uniform.
Optionally, with reference to Fig. 5 and Fig. 6, the second liquid crystal display panel 20 further includes the pixel electrode 25 of multiple strips, pixel electrode
25 between second array substrate 21 and the second liquid crystal layer 22, and each pixel electrode 25 controls at least second sub-pixel of column
200.The extending direction of pixel electrode 25 and the extending direction of light emitting region 300 intersect.In the embodiment of the present invention, the second liquid crystal surface
Pixel electrode 25 in plate 20 is set as strip shaped electric poles, and the pixel electrode 25 of strip is intersected to form with the light emitting region 300 of strip
Multiple intersection regions (as shown in the region S1 in Fig. 5).In other embodiments, the pixel in each second liquid crystal display panel 20
Electrode 25 can also only control second sub-pixel 200.
Illustratively, with reference to Fig. 5 and Fig. 6, the pixel electrode 25 of multiple strips extends along Y-direction, multiple light emitting regions 300
Extend in X direction.The second sub-pixel 200 (such as Fig. 5 at pixel electrode 25 and 300 region crossover location S1 of light emitting region
In the second sub-pixel 200a), only covering the region S1 light emitting region 300 (such as light emitting region 300a in Fig. 5) shine,
And cover pixel electrode 25 (such as pixel electrode 25a in Fig. 5) control corresponding with pixel electrode 25 at least one in the region S1
200 light transmission of the second sub-pixel of column (such as in Fig. 5, pixel electrode 25a control two the second sub-pixels 200 of column), the in the region S1
Two sub-pixels 200, which could be shown, to shine.
Optionally, with reference to Fig. 5 and Fig. 6, the first liquid crystal display panel 10 can also include first panel pixel electrode 191 and first
Common electrode in panel 192, first panel pixel electrode 191 are each between the first array substrate 11 and the first liquid crystal layer 13
First panel pixel electrode 191 controls first sub-pixel 100.First panel public electrode 192 can be set black in first
Between matrix 15 and the first liquid crystal layer 13.Electric field between first panel pixel electrode 191 and first panel public electrode 192 makes
Liquid crystal molecule deflection in first liquid crystal layer 13, to change the transmitance of the first sub-pixel 100.In other embodiments,
First panel pixel electrode 191 and first panel public electrode 192 can also be set to the first array substrate 11 and first jointly
Between liquid crystal layer 13.Second liquid crystal display panel 20 can also include public electrode 26, and public electrode 26 can be set in the second black square
Between battle array 23 and the second liquid crystal layer 22.Electric field between pixel electrode 25 and public electrode 26 makes the liquid crystal in the second liquid crystal layer 22
Molecule deflection, to change the transmitance of the second sub-pixel 200.In other embodiments, pixel electrode 25 and public electrode
26 can also be set to jointly between second array substrate 21 and the second liquid crystal layer 22.
Fig. 7 is the overlooking structure diagram of the first liquid crystal display panel provided in an embodiment of the present invention, and Fig. 8 is the embodiment of the present invention
The overlooking structure diagram of the second liquid crystal display panel provided, Fig. 9 are the plan structure of backlight module provided in an embodiment of the present invention
Schematic diagram, Figure 10 are the overlooking structure diagram of another liquid crystal display provided in an embodiment of the present invention, with reference to Fig. 7, Fig. 8,
Fig. 9 and Figure 10, the first liquid crystal display panel 10 include the first viewing area 101, and the first sub-pixel 100 of multiple array arrangements is located at first
In viewing area 101, the second liquid crystal display panel 20 includes the second viewing area 201, and the second sub-pixel 200 of multiple array arrangements is located at the
In two viewing areas 201.First viewing area 101 is located in the second viewing area 201, and the edge of the first viewing area 101 and second is shown
Show the distance between the edge in area 201 greater than 0 and less than 5 μm, the second viewing area 201 is located at all 300 locations of light emitting region
Domain (shows all 300 regions of light emitting region in Fig. 7 with label 301, and for simplicity referred to as third region 301)
It is interior, and the distance between edge of the edge of the second viewing area 201 and all 300 regions of light emitting region is greater than 0 and less than 5
μm, i.e., the distance between the edge at the edge of the second viewing area 201 and third region 301 is greater than 0 and less than 5 μm.The present invention is real
It applies in example, third region 301 surrounds the second viewing area 201, and the second viewing area 201 surrounds the first viewing area 101, thus in side view
Under visual angle, there are the second sub-pixels 200 can provide photograph for the first sub-pixel 100 positioned at 101 adjacent edges of the first viewing area
Mingguang City's beam, and there are light emitting region 300 be to provide illumination positioned at the second sub-pixel 200 of 201 adjacent edges of the second viewing area
Light beam ensure that liquid crystal display also has good luminescence display effect under side view visual angle.The edge of first viewing area 101
Refer to that the boundary of the first viewing area 101, the edge of the second viewing area 201 refer to the boundary of the second viewing area 201.It is optional
Ground, the first liquid crystal display panel 10 can also include the first non-display area 102, and the edge of the first viewing area 101 is the first viewing area 101
With the boundary line of the first non-display area 102, the second liquid crystal display panel 20 can also include the second non-display area 202, the second viewing area
201 edge is the boundary line of the second viewing area 201 and the second non-display area 202.
Illustratively, with reference to Fig. 7, Fig. 8, Fig. 9 and Figure 10, the first liquid crystal display panel 10 can also include the first non-display area
102, the first non-display area 102 is arranged around the first viewing area 101.In other embodiments, the first non-display area 102 can also
To be located at the side of the first viewing area 101.Alternatively, the first liquid crystal display panel 10 only includes the first viewing area 101, without including first
Non-display area 102, to realize full screen display.Second liquid crystal display panel 20 can also include the second non-display area 202, and second is non-aobvious
Show that area 202 is arranged around the second viewing area 201.In other embodiments, it is aobvious can also to be located at second for the second non-display area 202
Show the side in area 201.Alternatively, the second liquid crystal display panel 20 only includes the second viewing area 201, without including the second non-display area 202.
Optionally, the area of light emitting region 300 is greater than 400mm2And it is less than 900mm2.In the prior art, local light modulation is realized
A kind of liquid crystal display device, only pass through local dim backlight module 30 realize local light modulation, it is therefore desirable to by backlight module
30 divide a large amount of light emitting region 300, this undoubtedly causes being significantly greatly increased for 30 cost of backlight module.And only lean on backlight module very
Hardly possible realizes a large amount of subregion, therefore the fineness of local light modulation is often poor.And in the embodiment of the present invention, mainly pass through the second liquid
Crystal panel 20 realizes a large amount of subregion, and the second sub-pixel 200 in the second liquid crystal display panel 20 has lesser size, so as to
Increase the fineness of local light modulation.Backlight module 30 in the embodiment of the present invention is without dividing a large amount of light emitting region 300, therefore
It can have less number of partitions and bigger area for light emitting region 300 in compared with the existing technology.The present invention is real
It applies in example, the area of light emitting region 300 is greater than 400mm2And it is less than 900mm2, the subregion of backlight module 30 is less, reduces backlight
The cost of manufacture of mould group 30.
Figure 11 is the schematic diagram of the section structure of another liquid crystal display provided in an embodiment of the present invention, with reference to Figure 11, figure
Pixel electrode 25 and public electrode 26 in the second liquid crystal display panel 20 are omitted in 11, also omits in the first liquid crystal display panel 10
First panel pixel electrode 191 and first panel public electrode 192.First liquid crystal display panel 10 further includes the first polaroid 17 and
Two polaroids 18, the first polaroid 17 are located at color membrane substrates 12 far from 11 side of the first array substrate, and the second polaroid 18 is located at
First array substrate 11 is far from 12 side of color membrane substrates.First liquid crystal layer 13 be located at the first polaroid 17 and the second polaroid 18 it
Between, corresponding different first sub-pixels 100 of liquid crystal molecule of different deflection angles may be implemented different in the first liquid crystal layer 13
Transmitance.Second liquid crystal display panel 20 further includes third polaroid 26 and the 4th polaroid 27, and third polaroid 26 is located at the second liquid
Crystal layer 22 is far from 21 side of second array substrate, and optionally, third polaroid 26 can be located at counter substrate 24 far from second gust
21 side of column substrate.4th polaroid 27 is located at second array substrate 21 far from 22 side of the second liquid crystal layer.Second liquid crystal layer 22
Between third polaroid 26 and the 4th polaroid 27, the liquid crystal molecule of different deflection angles is corresponding in the second liquid crystal layer 22
Different transmitances may be implemented in different second sub-pixels 200.
Figure 12 is the schematic diagram of the section structure of another liquid crystal display provided in an embodiment of the present invention, with reference to Figure 12, figure
Pixel electrode 25 and public electrode 26 in the second liquid crystal display panel 20 are omitted in 12, also omits in the first liquid crystal display panel 10
First panel pixel electrode 191 and first panel public electrode 192.First liquid crystal display panel 10 further includes the first polaroid 17 and
Two polaroids 18, the first polaroid 17 are located at color membrane substrates 12 far from 11 side of the first array substrate, and the second polaroid 18 is located at
First array substrate 11 is far from 12 side of color membrane substrates.First liquid crystal layer 13 be located at the first polaroid 17 and the second polaroid 18 it
Between, corresponding different first sub-pixels 100 of liquid crystal molecule of different deflection angles may be implemented different in the first liquid crystal layer 13
Transmitance.Second liquid crystal display panel 20 further includes the 5th polaroid 28, and the 5th polaroid 28 is located at second array substrate 21 far from
Two liquid crystal layers, 22 side.Second liquid crystal layer 22 is between the second polaroid 18 and the 5th polaroid 28, in the second liquid crystal layer 22
Different transmitances may be implemented in corresponding different second sub-pixels 200 of the liquid crystal molecule of different deflection angles.The present invention is implemented
In example, the second liquid crystal display panel 20 has shared the second polaroid 18 of the first liquid crystal display panel 10, to reduce the use of polaroid
Quantity is thinned the thickness of liquid crystal display.
Figure 13 is the schematic diagram of the section structure of another liquid crystal display provided in an embodiment of the present invention, with reference to Figure 13, figure
Pixel electrode 25 and public electrode 26 in the second liquid crystal display panel 20 are omitted in 13, also omits in the first liquid crystal display panel 10
First panel pixel electrode 191 and first panel public electrode 192.Liquid crystal display further include be located at the first liquid crystal display panel 10 with
Diffusion sheet 40 between second liquid crystal display panel 20.Due to including the first sub-pixel of multiple array arrangements in the first liquid crystal display panel 10
100, it include the second sub-pixel 200 of multiple array arrangements in the second liquid crystal display panel 20.Regularly arranged 100 structure of the first sub-pixel
At array, the array constituted with regularly arranged the second sub-pixel 200 is easy to produce moire fringes.In order to eliminate moire fringes, this
By the way that diffusion sheet 40 is arranged between the first liquid crystal display panel 10 and the second liquid crystal display panel 20 in inventive embodiments, diffusion sheet 40 is utilized
To the diffusion of light beam, the edge of each second sub-pixel 200 is no longer sharp keen in the array for constituting the second sub-pixel 200,
That is, the edge of second sub-pixel 200 thickens after diffusion sheet 40, so that the array that the second sub-pixel 200 is constituted is not allowed
The array easily constituted with the first sub-pixel 100 generates moire fringes, to improve the display effect of liquid crystal display.
Optionally, with reference to Figure 13, the first liquid crystal display panel 10 further includes the first polaroid 17 and the second polaroid 18, and first partially
Mating plate 17 is located at color membrane substrates 12 far from 11 side of the first array substrate, and it is separate that the second polaroid 18 is located at the first array substrate 11
12 side of color membrane substrates.Liquid crystal display further includes fixing piece 50, fixing piece 50 be located at diffusion sheet 40 and the second polaroid 18 it
Between, for diffusion sheet 40 to be fixed on the second polaroid 18.Fixing piece 50 may include being mechanically fixed device or pasting solid
Determine device.
Optionally, with reference to Fig. 7 and Figure 13, the first liquid crystal display panel 10 includes the first viewing area 101 and the first non-display area
102, the first sub-pixel 100 of multiple array arrangements is located in the first viewing area 101, and fixing piece 50 is located at the first liquid crystal display panel 10
The first non-display area 102 in.In the embodiment of the present invention, fixing piece 50 is set in the first non-display area 102, is not influenced
The light beam of the first viewing area 101 is crossed, to not influence the luminescence display of liquid crystal display device.
Figure 14 is the schematic diagram of the section structure of another liquid crystal display provided in an embodiment of the present invention, with reference to Figure 14, figure
Pixel electrode 25 and public electrode 26 in the second liquid crystal display panel 20 are omitted in 14, also omits in the first liquid crystal display panel 10
First panel pixel electrode 191 and first panel public electrode 192.Liquid crystal display further includes for bonding the first liquid crystal display panel
10 and second liquid crystal display panel 20 diffusion glue-line 60, diffusion glue-line 60 includes optics gum base materials 61 and being distributed in optics gum base materials 61
In diffusion particle 62.On the one hand, diffusion glue-line 60 plays the role of beam spread, the battle array for avoiding the first sub-pixel 100 from constituting
Column generate moire fringes with the array that the second sub-pixel 200 is constituted.On the other hand, diffusion glue-line 60, which plays, is adhesively fixed the first liquid crystal
The effect of panel 10 and the second liquid crystal display panel.
Figure 15 is the structural schematic diagram of another liquid crystal display provided in an embodiment of the present invention, with reference to Figure 15, liquid crystal
Show that device further includes signal source 70, signal source 70 is electrically connected with the first liquid crystal display panel 10, the second liquid crystal display panel 20 and backlight module 30
It connects.
Illustratively, in one embodiment, signal source 70 can in the first liquid crystal display panel 10 pixel electrode and
Public electrode electrical connection, signal source 70 can in the second liquid crystal display panel 20 pixel electrode and public electrode be electrically connected, news
Number source 70 can be electrically connected with the light emitting diode 31 in backlight module 30.In another embodiment, the first liquid crystal display panel 10
It may include the first driving chip (being not shown in Figure 15), the first driving chip can be with the pixel electricity in the first liquid crystal display panel 10
Pole and public electrode electrical connection, the second liquid crystal display panel 20 may include the second driving chip (being not shown in Figure 15), and second drives
Dynamic chip can in the second liquid crystal display panel 20 pixel electrode and public electrode be electrically connected, backlight module 30 may include
Three driving chips (are not shown) in Figure 15, and third driving chip can be electrically connected with the light emitting diode 31 in backlight module 30,
Signal source 70 can be electrically connected with the first driving chip, the second driving chip and third driving chip.
Illustratively, signal source 70 obtains image to be displayed, determines each of the first liquid crystal display panel 10 according to image to be displayed
The display brightness of a first sub-pixel 100.Signal source 70 is according to the second sub-pixel 200 of the second liquid crystal display panel 20 and the first sub- picture
Plain 100 the first corresponding relationship and the display brightness of each first sub-pixel 100, determine that the display of the second sub-pixel 200 is bright
Degree.Signal source 70 is according to the light emitting region 300 of backlight module 30 and the second corresponding relationship of the second sub-pixel 200 and each
The display brightness of second sub-pixel 200 determines the driving voltage or driving current of light emitting region 300.Signal source 70 is simultaneously each
The corresponding first panel pixel electrode 191 of a first sub-pixel 100 applies driving voltage corresponding with its brightness or driving electricity
Stream, while applying driving voltage corresponding with its brightness or driving for the corresponding pixel electrode 25 of each second sub-pixel 200
Electric current, while applying driving voltage corresponding with the brightness of light emitting region 300 or driving current for each light emitting diode 31.
Be described in detail is how linkage control integrally realizes backlight local dimming and panel localdimming phase
Mutually cooperation is to realize desired function.Or write together can also be with for the following driving method of cooperation.
Figure 16 is a kind of driving method flow chart of liquid crystal display provided in an embodiment of the present invention, and the embodiment of the present invention mentions
The driving method of the liquid crystal display of confession can based on the above embodiment in liquid crystal display execute, with reference to Fig. 1-Figure 16, liquid
The driving method of crystal display includes the following steps:
S110, image to be displayed is obtained, each first sub-pixel of the first liquid crystal display panel 10 is determined according to image to be displayed
100 display brightness.
Image to be displayed is the image of final luminescence display, and by the visible image of user.
S120, according to the second sub-pixel 200 of the second liquid crystal display panel 20 and the first corresponding relationship of the first sub-pixel 100,
And the display brightness of each first sub-pixel 100, determine the display brightness of the second sub-pixel 200.
First corresponding relationship, which includes: that each second sub-pixel 200 is corresponding, covers multiple first sub-pixels 100.Illustratively,
As shown in fig. 1,16 the first sub-pixels 100 of the corresponding covering of each second sub-pixel 200.One first sub-pixel 100 display hair
The second sub-pixel 200 display of light time, the first sub-pixel 100 of corresponding covering shine.Display, which shines, refers to display zero brightness.
When all the first sub-pixels 100 of the corresponding covering of one the second sub-pixel 200 show zero luminance, second sub-pixel 200 due to
Without providing illuminating bundle for the first sub-pixel 100 of its covering, therefore second sub-pixel 200 can show zero luminance.It is real
In the product of border, the display brightness of sub-pixel (including first sub-pixel and second sub-pixel) can for example use the grayscale of 0-255
To indicate.
S130, according to the light emitting region 300 of backlight module 30 and the second corresponding relationship of the second sub-pixel 200, and it is each
The display brightness of a second sub-pixel 200 determines the driving voltage or driving current of light emitting region 300.
Second corresponding relationship, which includes: that each light emitting region 300 is corresponding, covers multiple second sub-pixels 200.One second sub- picture
When 200 display of element shines, the display of light emitting region 300 of the second sub-pixel 200 of corresponding covering shines, to show luminous luminous zone
Domain 300 provides driving voltage or driving current.All the second sub-pixels 200 display zero of the corresponding covering in one light emitting region 300
When brightness, which provides illuminating bundle due to being not necessarily to for second sub-pixel 200 of its covering, the luminous zone
Domain 300 can show zero luminance, without providing driving voltage or driving current for the light emitting region 300.Each light emitting region 300
Including at least one light emitting diode 31, the driving voltage or driving current of light emitting region 300 can be to send out in light emitting region 300
The driving voltage or driving current of optical diode 31.
Optionally, with reference to Fig. 1 and Figure 16, according to the second sub-pixel 200 and the first sub-pixel 100 of the second liquid crystal display panel 20
The first corresponding relationship and each first sub-pixel 100 display brightness, determine the display brightness of the second sub-pixel 200,
(i.e. step S120) includes:
S121, according to the second sub-pixel 200 of the second liquid crystal display panel 20 and the first corresponding relationship of the first sub-pixel 100,
The peak value in the display brightness of each first sub-pixel 100 of the corresponding covering of the second sub-pixel 200 is chosen as the second sub-pixel
200 display brightness.
Since the second sub-pixel 200 needs each first sub-pixel 100 for the corresponding covering of second sub-pixel 200 to provide
Illuminating bundle, therefore display brightness of the peak value of display brightness in the first sub-pixel 100 as second sub-pixel 200 is chosen,
The brightness demand that can satisfy all first sub-pixels 100 of second sub-pixel 200 covering, avoids the brightness that image is shown
Distortion.
Optionally, with reference to Fig. 1 and Figure 16, according to the second of the light emitting region 300 of backlight module 30 and the second sub-pixel 200
The display brightness of corresponding relationship and each second sub-pixel 200 determines the driving voltage or driving current of light emitting region 300,
(i.e. step S130), comprising:
S131, according to the light emitting region 300 of backlight module 30 and the second corresponding relationship of the second sub-pixel 200, choose hair
Display of the peak value of the display brightness of corresponding each second sub-pixel 200 that backlight is provided in light region 300 as light emitting region 300
Brightness determines the driving voltage or driving current of light emitting region 300 according to the display brightness of each light emitting region 300.
Since light emitting region 300 needs each second sub-pixel 200 for the corresponding covering in the light emitting region 300 to provide illumination
Light beam, therefore choose display brightness of the peak value of display brightness in the second sub-pixel 200 as the light emitting region 300, Ke Yiman
The brightness demand of all second sub-pixels 200 of the foot light emitting region 300 covering, avoids the luminance distortion that image is shown.
Optionally, with reference to Fig. 5, Fig. 6 and Figure 16, the second liquid crystal display panel 20 further includes the pixel electrode 25 of multiple strips, as
Plain electrode 25 is located between second array substrate 21 and the second liquid crystal layer 22, each control of pixel electrode 25 at least second son of column
Pixel 200.The extending direction of pixel electrode 25 and the extending direction of light emitting region 300 intersect.In the hair according to backlight module 30
The display brightness of the second corresponding relationship and each second sub-pixel 200 of light region 300 and the second sub-pixel 200 determines hair
The driving voltage or driving current in light region 300, after (i.e. step S130), driving method further include:
Pixel electrode 25 corresponding to S140, the second sub-pixel 200 to shine for display, and the second son that display shines
Light emitting region 300 corresponding to pixel 200 provides driving voltage or driving current simultaneously.
Illustratively, with reference to Fig. 5, to intersect to form the pixel electrode 25 in the region S1 and light emitting region 300 while providing
Driving voltage or driving current, so that the display of the second sub-pixel of at least one of region S1 200 shines.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above embodiments to this
Invention is described in further detail, but the present invention is not limited to the above embodiments only, is not departing from present inventive concept
In the case of, it can also include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (17)
1. a kind of liquid crystal display characterized by comprising the first liquid crystal display panel, backlight module and the second liquid crystal display panel；Institute
The second liquid crystal display panel is stated between first liquid crystal display panel and the backlight module；
First liquid crystal display panel is including the first array substrate, color membrane substrates and is located at first array substrate and the coloured silk
The first liquid crystal layer between ilm substrate；First liquid crystal display panel includes the first sub-pixel of multiple array arrangements；
Second liquid crystal display panel includes second array substrate and the second liquid crystal layer；Second liquid crystal layer is located at described first gust
Between column substrate and the second array substrate；Second liquid crystal display panel includes the second sub-pixel of multiple array arrangements；
The backlight module includes the light emitting region of multiple array arrangements, each light emitting region include at least one shine two
Pole pipe；The driving voltage or driving current of the different light emitting regions are adjustable；
Wherein, each second sub-pixel is corresponding covers multiple first sub-pixels；Each light emitting region covering multiple described the
Two sub-pixels, each light emitting region provide backlight for multiple second sub-pixels.
2. liquid crystal display according to claim 1, which is characterized in that the backlight module further includes diffuser plate, described
Light emitting diode is located at the diffuser plate far from second liquid crystal display panel side.
3. liquid crystal display according to claim 1, which is characterized in that the backlight module includes light guide plate, the hair
Optical diode is located at the side end face of the light guide plate, and the light guide plate is located at the second array substrate away from second liquid crystal
The side of layer, the light that the light emitting diode of each light emitting region issues are at least described in a line by the light guide plate
Second sub-pixel provides backlight.
4. liquid crystal display according to claim 3, which is characterized in that second liquid crystal display panel further includes multiple strips
Pixel electrode, the pixel electrode is between the second array substrate and second liquid crystal layer, each pixel
At least one column second sub-pixel of electrode control；The extending direction of the extending direction of the pixel electrode and the light emitting region
Intersect.
5. liquid crystal display according to claim 1, which is characterized in that first liquid crystal display panel includes the first display
First sub-pixel in area, the multiple array arrangement is located in first viewing area, and second liquid crystal display panel includes second
Second sub-pixel of viewing area, the multiple array arrangement is located in second viewing area；
First viewing area is located in second viewing area, and the edge of first viewing area and second viewing area
The distance between edge be greater than 0 and less than 5 μm；Second viewing area is located in all light emitting region regions, and institute
The distance between the edge of the second viewing area and the edge of all light emitting region regions are stated greater than 0 and less than 5 μm.
6. liquid crystal display according to claim 1, which is characterized in that the area of the light emitting region is greater than 400mm2And
Less than 900mm2。
7. liquid crystal display according to claim 1, which is characterized in that first liquid crystal display panel further includes the first polarisation
Piece and the second polaroid, first polaroid are located at the color membrane substrates far from first array substrate side, and described
Two polaroids are located at first array substrate far from the color membrane substrates side；
Second liquid crystal display panel further includes third polaroid and the 4th polaroid, and the third polaroid is located at second liquid
For crystal layer far from second array substrate side, the 4th polaroid is located at the second array substrate far from second liquid
Crystal layer side.
8. liquid crystal display according to claim 1, which is characterized in that first liquid crystal display panel further includes the first polarisation
Piece and the second polaroid, first polaroid are located at the color membrane substrates far from first array substrate side, and described
Two polaroids are located at first array substrate far from the color membrane substrates side；
Second liquid crystal display panel further includes the 5th polaroid, and the 5th polaroid is located at the second array substrate far from institute
State the second liquid crystal layer side.
9. liquid crystal display according to claim 1, which is characterized in that the liquid crystal display further includes being located at described the
Diffusion sheet between one liquid crystal display panel and second liquid crystal display panel.
10. liquid crystal display according to claim 9, which is characterized in that first liquid crystal display panel further includes first inclined
Mating plate and the second polaroid, first polaroid are located at the color membrane substrates far from first array substrate side, described
Second polaroid is located at first array substrate far from the color membrane substrates side；
The liquid crystal display further includes fixing piece, the fixing piece between the diffusion sheet and second polaroid,
For the diffusion sheet to be fixed on second polaroid.
11. liquid crystal display according to claim 10, which is characterized in that first liquid crystal display panel includes the first display
First sub-pixel of area and the first non-display area, the multiple array arrangement is located in first viewing area；The fixing piece
In the first non-display area of first liquid crystal display panel.
12. liquid crystal display according to claim 1, which is characterized in that the liquid crystal display further includes for bonding
The diffusion glue-line of first liquid crystal display panel and second liquid crystal display panel, the diffusion glue-line includes optics gum base materials and distribution
Diffusion particle in the optics gum base materials.
13. liquid crystal display according to claim 1, which is characterized in that further include signal source, the signal source with it is described
First liquid crystal display panel, second liquid crystal display panel and backlight module electrical connection.
14. a kind of driving method of liquid crystal display characterized by comprising
Image to be displayed is obtained, determines that the display of each first sub-pixel of the first liquid crystal display panel is bright according to the image to be displayed
Degree；
According to the first corresponding relationship of the second sub-pixel of the second liquid crystal display panel and first sub-pixel and each described the
The display brightness of one sub-pixel determines the display brightness of second sub-pixel；First corresponding relationship includes: each described
Second sub-pixel is corresponding to cover multiple first sub-pixels；When one first sub-pixel shows luminous, described in corresponding covering
Second sub-pixel of first sub-pixel, which is shown, to shine；The whole of the corresponding covering of one second sub-pixel first son
When pixel shows zero luminance, second sub-pixel shows zero luminance；
According to the second corresponding relationship and each second sub- picture of the light emitting region of backlight module and second sub-pixel
The display brightness of element, determines the driving voltage or driving current of the light emitting region；Second corresponding relationship includes: each institute
State corresponding multiple second sub-pixels of covering in light emitting region；When one second sub-pixel shows luminous, described in corresponding covering
The light emitting region of second sub-pixel, which is shown, to shine, to show that the luminous light emitting region provides driving voltage or driving electricity
Stream；When whole second sub-pixel of the corresponding covering in one light emitting region shows zero luminance, the light emitting region is shown
Zero luminance；
Wherein, the liquid crystal display includes: the first liquid crystal display panel, backlight module and the second liquid crystal display panel；Second liquid
Crystal panel is between first liquid crystal display panel and the backlight module；First liquid crystal display panel includes the first array base
Plate, color membrane substrates and the first liquid crystal layer between first array substrate and the color membrane substrates；First liquid
Crystal panel includes the first sub-pixel of multiple array arrangements；Second liquid crystal display panel includes second array substrate and the second liquid crystal
Layer；Second liquid crystal layer is between first array substrate and the second array substrate；Second liquid crystal display panel
The second sub-pixel including multiple array arrangements；The backlight module includes the light emitting region of multiple array arrangements, each described
Light emitting region includes at least one light emitting diode.
15. driving method according to claim 14, which is characterized in that according to the second sub-pixel of the second liquid crystal display panel with
The display brightness of first corresponding relationship of first sub-pixel and each first sub-pixel determines second son
The display brightness of pixel, comprising:
According to the first corresponding relationship of the second sub-pixel of the second liquid crystal display panel and first sub-pixel, second son is chosen
Peak value in the display brightness of each first sub-pixel of the corresponding covering of pixel is bright as the display of second sub-pixel
Degree.
16. driving method according to claim 14, which is characterized in that according to the light emitting region of backlight module and described the
The display brightness of second corresponding relationship of two sub-pixels and each second sub-pixel, determines the drive of the light emitting region
Dynamic voltage or driving current, comprising:
According to the second corresponding relationship of the light emitting region of backlight module and second sub-pixel, it is corresponding to choose the light emitting region
Display brightness of the peak value of the display brightness of each second sub-pixel of backlight as the light emitting region is provided, according to each
The display brightness of a light emitting region determines the driving voltage or driving current of the light emitting region.
17. driving method according to claim 14, which is characterized in that second liquid crystal display panel further includes multiple strips
Pixel electrode, the pixel electrode is between the second array substrate and second liquid crystal layer, each pixel
At least one column second sub-pixel of electrode control；The extending direction of the extending direction of the pixel electrode and the light emitting region
Intersect；
According to the light emitting region of backlight module and the second corresponding relationship of second sub-pixel and each second son
The display brightness of pixel, after the driving voltage or the driving current that determine the light emitting region, the driving method further include:
To show the pixel electrode corresponding to luminous second sub-pixel, and the described second sub- picture that display is luminous
Light emitting region corresponding to element provides driving voltage or driving current simultaneously.
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