CN109243386A - A kind of backlight module, display device and its control method - Google Patents
A kind of backlight module, display device and its control method Download PDFInfo
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- CN109243386A CN109243386A CN201811393439.XA CN201811393439A CN109243386A CN 109243386 A CN109243386 A CN 109243386A CN 201811393439 A CN201811393439 A CN 201811393439A CN 109243386 A CN109243386 A CN 109243386A
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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
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
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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
- G09G3/36—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
- G09G3/3611—Control of matrices with row and column drivers
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The present invention provides a kind of backlight module, display device and its control methods.The backlight module includes backlight drive module and backlight panel；The side that display panel deviates from light-emitting surface is arranged in the backlight panel；The backlight panel has multirow back light unit, and the display panel has multirow display unit, and a line back light unit corresponds to a line display unit；The backlight drive module is configured as when the display panel shows monochromatic gray scale image line by line, monochromatic light corresponding with the monochrome gray scale image is successively issued according to default Timing driver row back light unit, so that the display panel shows color image.Through the embodiment of the present invention, the fluorescent lifetime of back light unit can be lengthened, to improve display brightness.
Description
Technical field
The present invention relates to field of display technology, more particularly to a kind of backlight module, display device and its control method.
Background technique
Currently, the display mode of color image is, R, G, B monochrome gray scale image are shown, and arrange in pairs or groups and remove the LCD of color film
(Liquid Crystal Display, liquid crystal display) issues Unicolor back light.One color image frame is divided into three monochromatic ashes
Rank image shows, needs LCD refreshing frequency (normal 3 times) with higher when issuing backlight.Since the scanning signal of LCD is swept
(such as 1ms) of the time fixation of a line is retouched, the response time of liquid crystal is fixed (such as 4ms), when the refreshing frequency of color image
When for 60Hz, the refreshing frequency of practical monochrome gray scale image is 180Hz, i.e., only 5.6ms, that is to say, that Unicolor back light shines
Time is about 0.6ms, far can not support required display brightness.
Summary of the invention
The present invention provides a kind of backlight module, display device and its control method, to solve Unicolor back light in the prior art
Fluorescent lifetime it is shorter, the problem of not being able to satisfy brightness demand.
To solve the above-mentioned problems, the invention discloses a kind of backlight module, the backlight module includes backlight drive mould
Block and backlight panel；The side that display panel deviates from light-emitting surface is arranged in the backlight panel；The backlight panel has multirow
Back light unit, the display panel have multirow display unit, and a line back light unit corresponds to a line display unit；
The backlight drive module is configured as when the display panel shows monochromatic gray scale image line by line, according to pre-
If Timing driver row back light unit successively issues monochromatic light corresponding with the monochrome gray scale image, so that the display panel is aobvious
Show color image.
Optionally, the backlight drive module, be configured as showing in the Nth row display unit of the display panel described in
When monochromatic gray scale image, the Nth row back light unit of the backlight panel is driven to issue list corresponding with the monochrome gray scale image
Coloured light；Wherein, N is positive integer.
Optionally, the monochromatic gray scale image includes the first gray scale image, the second gray scale image and third gray scale image；
The backlight drive module is configured as when the Nth row display unit shows first gray scale image, is driven
It moves the Nth row back light unit and issues monochromatic light corresponding with first gray scale image；It is shown in the Nth row display unit
When second gray scale image, the Nth row back light unit is driven to issue monochromatic light corresponding with second gray scale image；?
When the Nth row display unit shows the third gray scale image, the Nth row back light unit is driven to issue and the third ash
The corresponding monochromatic light of rank image；
Wherein, the Nth row display unit issues corresponding with first gray scale image in the Nth row back light unit
After monochromatic light, second gray scale image is scanned, is issued and second gray scale image pair in the Nth row back light unit
After the monochromatic light answered, the third gray scale image is scanned.
Optionally, the back light unit includes multiple monochromatic sources；
The backlight drive module is configured as when display panel progressively scans and shows monochromatic gray scale image, according to pre-
If timing successively drives monochromatic source corresponding with the monochrome gray scale image in row back light unit to shine.
Optionally, the back light unit is straight-down negative rgb light source；
The monochromatic source is light emitting diode.
Optionally, the display time of a line display unit is identical as the fluorescent lifetime of corresponding row back light unit.
The embodiment of the invention also provides a kind of display device, the display device includes display panel, display driving mould
Block, and such as above-mentioned backlight module；
The backlight module includes backlight drive module and backlight panel；The backlight panel is arranged in the display panel
Away from the side of light-emitting surface；The backlight panel have multirow back light unit, the display panel have multirow display unit, one
Row back light unit corresponds to a line display unit；
The driver module is configured as progressively scanning display monochrome according to display panel described in default Timing driver
Gray scale image；
The backlight drive module is configured as when the display panel shows monochromatic gray scale image line by line, according to institute
It states default Timing driver backlight panel and issues monochromatic light corresponding with the monochrome gray scale image line by line, so that the display panel
Show color image.
The embodiment of the invention also provides a kind of control methods of display device, are applied to as claimed in claim 7 aobvious
Showing device, which comprises
Driver module is according to default sequential export display drive signals, and backlight drive module is according to the default timing
Export backlight drive signal；
Display panel receives the display drive signals, and progressive scan shows monochromatic gray scale image；
Backlight panel receives the backlight drive signal, when the display panel shows monochromatic gray scale image line by line, by
Row issues monochromatic light corresponding with the monochrome gray scale image.
Optionally, the display panel receives the display drive signals, and progressive scan shows monochromatic gray scale image, packet
It includes:
The Nth row display unit of the display panel is scanned, the Nth row display unit responds and shows first
Gray scale image；
At the end of the Nth row back light unit of the backlight panel corresponds to first gray scale image and shines, to the N
Row display unit is scanned, and the Nth row display unit responds and shows the second gray scale image；
At the end of the Nth row back light unit corresponds to second gray scale image and shines, to the Nth row display unit
It is scanned, the Nth row display unit responds and shows third gray scale image；
Wherein, N is positive integer.
Optionally, the display panel receives the display drive signals, and progressive scan shows monochromatic gray scale image, packet
It includes:
When the Nth row back light unit corresponds to first gray scale image and shines, to adjacent N+1 row display unit
It is scanned.
Compared with prior art, the present invention includes the following advantages:
In the embodiment of the present invention, backlight module includes backlight drive module and backlight panel；Backlight panel setting is being shown
Panel deviates from the side of light-emitting surface；Backlight panel has multirow back light unit, and display panel has multirow display unit, a line back
Light unit corresponds to a line display unit；When display panel shows monochromatic gray scale image line by line, backlight drive module is according to default
Timing driver row back light unit successively issues monochromatic light corresponding with monochromatic gray scale image, and display panel is made to show color image.
Compared with backlighting scheme in the prior art, display unit and back light unit cooperation are shown in the embodiment of the present invention, can be lengthened
The fluorescent lifetime of back light unit, to improve display brightness.Further, the display time of a color image frame can be compressed,
Refreshing frequency is improved, to promote display effect.
Detailed description of the invention
Fig. 1 shows a kind of structural schematic diagram of backlight module of the embodiment of the present invention one；
Fig. 2 shows the structural schematic diagrams of the display panel of the embodiment of the present invention one；
Fig. 3 shows the waveform diagram of the default timing of the embodiment of the present invention one；
Fig. 4 shows the structural schematic diagram of a line back light unit of the embodiment of the present invention one；
Fig. 5 shows a kind of step flow chart of the control method of display device of the embodiment of the present invention three.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Embodiment one
Referring to Fig.1, a kind of structural schematic diagram of backlight module provided in an embodiment of the present invention is shown.The backlight module
Including backlight drive module 11 and backlight panel 12；One that display panel 21 deviates from light-emitting surface is arranged in the backlight panel 12
Side；The backlight panel 12 has multirow back light unit 121, described referring to the structural schematic diagram of display panel 21 shown in Fig. 2
Display panel 21 has multirow display unit 211, the corresponding a line display unit 211 of a line back light unit 121；
The backlight drive module 11 is configured as pressing when the display panel 21 shows monochromatic gray scale image line by line
Monochromatic light corresponding with the monochrome gray scale image is successively issued according to default Timing driver row back light unit 121, so that described aobvious
Show that panel 21 shows color image.
In the present embodiment, backlight module includes backlight drive module 11 and backlight panel 12, and backlight panel 12 has multirow
Back light unit 121, backlight drive module 11 drive backlight panel 12 to shine.The setting of backlight panel 12 is in display panel 21 away from out
Smooth surface side, display panel 21 have multirow display unit 211, and every row display unit 211 includes at least one-row pixels unit.Example
Such as, every row display unit 211 includes 5 row pixel units.The embodiment of the present invention does not limit this in detail, can be according to practical feelings
Condition is configured.Display panel 21 progressively scans and shows that monochromatic gray scale image, a line display unit 211 are scanning monochromatic grayscale
When image, corresponding row back light unit 121 does not shine；When showing monochromatic gray scale image, corresponding row back light unit 121 is issued
Monochromatic light corresponding with monochromatic gray scale image.A line back light unit 121 successively issues a variety of monochromatic light, and a variety of monochromatic light are mixed
Light cooperates with the monochromatic gray scale image that display unit 211 is shown, display panel 21 is made to show color image.In the prior art, whole
When a display panel 21 shows monochromatic gray scale image, entire backlight panel 12 is simultaneously emitted by the monochrome of corresponding monochromatic gray scale image
Light, it is therefore desirable to the refreshing frequency with higher of display panel 21, and in backlight panel 12 light source fluorescent lifetime it is shorter, no
It is able to satisfy brightness demand.And in the embodiment of the present invention, the corresponding a line back light unit 121 of a line display unit 211, each row display list
Member 211 successively shows that first monochromatic gray scale image, corresponding row back light unit 121 shine.Compared in the prior art, this hair
To lengthen fluorescent lifetime, there are spaces in bright embodiment, and so as to promote the fluorescent lifetime of backlight panel 12, raising display is bright
Degree.
Optionally, the backlight drive module is configured as showing institute in the Nth row display unit of the display panel 21
When stating monochromatic gray scale image, the Nth row back light unit of the backlight panel 12 is driven to issue corresponding with the monochromatic gray scale image
Monochromatic light；Wherein, N is positive integer.
Specifically, referring to Figures 1 and 2, when Nth row display unit scans monochromatic gray scale image, Nth row back light unit is not sent out
Light；When the monochromatic gray scale image of the scanned display of Nth row display unit, backlight drive module drive Nth row back light unit is issued
Monochromatic light corresponding with monochromatic gray scale image；When N+1 row display unit scans monochromatic gray scale image, N+1 row back light unit
It does not shine, when the monochromatic gray scale image of the scanned display of N+1 row display unit, backlight drive module drive N+1 row backlight
Unit issues monochromatic light corresponding with monochromatic gray scale image.
Optionally, the monochromatic gray scale image includes the first gray scale image, the second gray scale image and third gray scale image；
The backlight drive module is configured as when the Nth row display unit shows first gray scale image, is driven
It moves the Nth row back light unit and issues monochromatic light corresponding with first gray scale image；It is shown in the Nth row display unit
When second gray scale image, the Nth row back light unit is driven to issue monochromatic light corresponding with second gray scale image；?
When the Nth row display unit shows the third gray scale image, the Nth row back light unit is driven to issue and the third ash
The corresponding monochromatic light of rank image；
Wherein, the Nth row display unit issues corresponding with first gray scale image in the Nth row back light unit
After monochromatic light, second gray scale image is scanned, is issued and second gray scale image pair in the Nth row back light unit
After the monochromatic light answered, the third gray scale image is scanned.
In the present embodiment, back light unit 121 can be straight-down negative rgb light source, i.e. back light unit 121 can issue RGB tri-
Color, monochromatic gray scale image may include the first gray scale image, the second gray scale image and third gray-scale figure for respectively corresponding tri- color of RGB
Picture.For example, referring to the waveform diagram of default timing shown in Fig. 3, when Nth row display unit scans the first gray scale image, Nth row back
Light unit does not shine；When Nth row display unit the first gray scale image of scanned display, backlight drive module drive Nth row back
Light unit issues monochromatic light corresponding with the first gray scale image.After Nth row back light unit shines, Nth row display unit is swept
The second gray scale image is retouched, Nth row back light unit does not shine.When Nth row display unit the second gray scale image of scanned display, back
Optical drive module drive Nth row back light unit issues monochromatic light corresponding with the second gray scale image.Nth row back light unit light-emitting junction
Shu Hou, Nth row display unit scan third gray scale image, and Nth row back light unit does not shine.Nth row display unit is scanned
When showing third gray scale image, backlight drive module drive Nth row back light unit issues monochrome corresponding with third gray scale image
Light.
Optionally, referring to the schematic diagram of a line back light unit shown in Fig. 4, the back light unit 121 includes multiple monochromes
Light source；
The backlight drive module is configured as when display panel 21 shows monochromatic gray scale image line by line, according to default
Timing successively drives monochromatic source corresponding with the monochrome gray scale image in row back light unit 121 to shine.
In the present embodiment, when Nth row display unit shows the first gray scale image, backlight drive module drive Nth row back
Monochromatic source corresponding with the first gray scale image shines in light unit；When Nth row display unit shows the second gray scale image, back
Monochromatic source corresponding with the second gray scale image shines in optical drive module drive Nth row back light unit；In Nth row display unit
When showing third gray scale image, monochromatic light corresponding with third gray scale image in backlight drive module drive Nth row back light unit
Source shines.The monochromatic source can be light emitting diode (LED, Light-Emitting Diode).In a line back light unit
In 121, monochromatic source may include red-light LED, green light LED, blue-ray LED.For example, referring to shown in Fig. 1 and Fig. 2, Nth row is shown
When unit shows the first gray scale image, the red-light LED in backlight drive module drive Nth row back light unit shines；N+2 row is aobvious
Green LED when showing that unit shows the second gray scale image, in backlight drive module drive N+2 row back light unit；N+4
When row display unit shows third gray scale image, the blue-ray LED in backlight drive module drive N+4 row back light unit shines.
Optionally, the display time of a line display unit 211 is identical as the fluorescent lifetime of corresponding row back light unit 121.
In the present embodiment, the fluorescent lifetime phase of the display time and corresponding row back light unit 121 of a line display unit 211
Together, display time and fluorescent lifetime can be set according to the actual situation, to lengthen the fluorescent lifetime of back light unit, improve display
Brightness.
In conclusion backlight module includes backlight drive module and backlight panel in the embodiment of the present invention；Backlight panel is set
It sets and deviates from the side of light-emitting surface in display panel；Backlight panel has multirow back light unit, and display panel has multirow display single
Member, a line back light unit correspond to a line display unit；When display panel shows monochromatic gray scale image line by line, backlight drive module
Monochromatic light corresponding with monochromatic gray scale image is successively issued according to default Timing driver row back light unit, keeps display panel display color
Chromatic graph picture.Compared with backlighting scheme in the prior art, display unit and back light unit cooperation are shown in the embodiment of the present invention, can
To lengthen the fluorescent lifetime of back light unit, to improve display brightness.
Embodiment two
The embodiment of the invention provides a kind of display devices.The display device includes display panel 21, display driving mould
Block 22 and backlight module as claimed in any one of claims 1 to 6；
The backlight module includes backlight drive module 11 and backlight panel 12；The setting of backlight panel 12 is described aobvious
Show that panel 21 deviates from the side of light-emitting surface；The backlight panel 12 has multirow back light unit 121, and the display panel 21 has
Multirow display unit 211, the corresponding a line display unit 211 of a line back light unit 121；
The driver module 22 is configured as progressively scanning display according to display panel 21 described in default Timing driver
Monochromatic gray scale image；
The backlight drive module 11 is configured as pressing when the display panel 21 shows monochromatic gray scale image line by line
Monochromatic light corresponding with the monochrome gray scale image is issued line by line according to the default Timing driver backlight panel 12, so that described aobvious
Show that panel 21 shows color image.
In the present embodiment, driver module 22 drives the progressive scan of display panel 21 to show monochromatic gray scale image, backlight
Drive module 11 drives backlight panel 12 to issue monochromatic light corresponding with monochromatic gray scale image line by line.For example, referring to shown in Fig. 3,
According to default timing, when Nth row display unit scans the first gray scale image, Nth row back light unit does not shine, and Nth row scans through
When finishing the first gray scale image of display, Nth row back light unit issues the monochromatic light of corresponding first gray scale image.Nth row back light unit
At the end of shining, Nth row display unit scans the second gray scale image.Nth row display unit the second gray-scale figure of scanned display
When picture, Nth row back light unit issues the monochromatic light of corresponding second gray scale image.At the end of Nth row back light unit shines, Nth row
Display unit scans third gray scale image.When the scanned display third gray scale image of Nth row display unit, Nth row backlight list
Member issues the monochromatic light of corresponding third gray scale image.At the end of Nth row back light unit shines, Nth row display unit repeats to sweep again
Retouch the first gray scale image.And so on, each 211 scan round of row display unit is shown, each row back light unit 121 is in display unit
When 211 display monochrome gray scale image, monochromatic light corresponding with monochromatic gray scale image is issued.
Referring to Fig. 3, when Nth row back light unit issues the monochromatic light of corresponding first gray scale image, N+1 row display unit
The first gray scale image is scanned, N+1 row back light unit does not shine.N+1 row display unit the first gray-scale figure of scanned display
When picture, N+1 row back light unit issues the monochromatic light of corresponding first gray scale image, and N+2 row display unit scans the first grayscale
Image, N+2 row back light unit do not shine.When N+2 row display unit the first gray scale image of scanned display, N+3 row
Back light unit issues the monochromatic light of corresponding first gray scale image.And so on, the scanning display downwards first line by line of display panel 21
Gray scale image.The scanning display mode of second gray scale image and third gray scale image is identical as the first gray scale image.
In conclusion display device includes display panel, driver module and backlight mould in the embodiment of the present invention
Group；Backlight module includes backlight drive module and backlight panel；The side that display panel deviates from light-emitting surface is arranged in backlight panel；
Backlight panel has multirow back light unit, and display panel has multirow display unit, and it is single that a line back light unit corresponds to a line display
Member；Driver module is configured as progressively scanning the monochromatic gray scale image of display according to default Timing driver display panel；Backlight
Drive module is configured as when display panel shows monochromatic gray scale image line by line, according to default Timing driver row back light unit
Monochromatic light corresponding with monochromatic gray scale image is successively issued, so that display panel shows color image.It is shown in the embodiment of the present invention
Show that unit and back light unit cooperation are shown, the fluorescent lifetime of back light unit can be lengthened, so that the display for improving display device is bright
Degree.
Embodiment three
Referring to Fig. 5, a kind of step flow chart of the control method of display device provided in an embodiment of the present invention is shown.It answers
For the display device as described in embodiment two, which comprises
Step 301, driver module is according to default sequential export display drive signals, and backlight drive module is according to described
Default sequential export backlight drive signal.
In the present embodiment, display device includes display panel 21, driver module 22 and backlight module.Display panel 21
With multirow display unit 211, including at least one-row pixels unit in each row display unit 211.Backlight module includes that backlight is driven
Dynamic model block 11 and backlight panel 12, backlight panel 12 have multirow back light unit 121, and the corresponding a line of a line back light unit 121 is aobvious
Show unit 211.Driver module 22 is according to default sequential export display drive signals, and backlight drive module 11 is also according to default
Sequential export backlight drive signal.It is provided with synchronization signal between driver module 22 and backlight drive module 11, to protect
It is consistent with the timing of backlight drive signal to demonstrate,prove display drive signals.
Step 402, display panel 21 receives the display drive signals, and progressive scan shows monochromatic gray scale image.
In the present embodiment, display panel 21 receives display drive signals, is scanned line by line and shows monochromatic gray scale image.
The Nth row display unit of the display panel 21 is scanned, the Nth row display unit responds and shows the first gray-scale figure
Picture；At the end of the Nth row back light unit of the backlight panel 12 corresponds to first gray scale image and shines, to the Nth row
Display unit is scanned, and the Nth row display unit responds and shows the second gray scale image；In the Nth row back light unit
At the end of corresponding second gray scale image shines, the Nth row display unit is scanned, the Nth row display unit
It responds and shows third gray scale image；Wherein, N is positive integer.For example, being scanned to the 1st row display unit, the 1st row is shown
Unit responds and is displayed in red gray scale image；At the end of the 1st row back light unit glows, the 1st row display unit is swept
It retouches, the 1st row display unit responds and shows green gray scale image；It is aobvious to the 1st row at the end of the 1st row back light unit green light
Show that unit is scanned, the 1st row display unit responds and is displayed in blue gray scale image；Terminate in the 1st row back light unit blue light-emitting
When, to the red gray scale image of the 1st row display unit scanning next frame.
Optionally, when the Nth row back light unit corresponds to first gray scale image and shines, to adjacent N+1 row
Display unit is scanned.For example, being scanned when the 1st row back light unit glows to the 2nd row display unit；In the 2nd row
When back light unit glows, the 3rd row display unit is scanned.Due to a line back light unit 121 carried out when luminous it is adjacent
The scanning of a line display unit 211, therefore the scanning that can save display panel shows the time, to improve refreshing frequency, contracts
The display time of a short color image frame promotes display effect.
Step 403, backlight panel 12 receives the backlight drive signal, and it is single to progressively scan display in the display panel 21
When color gray scale image, monochromatic light corresponding with the monochrome gray scale image is issued line by line.
In the present embodiment, backlight panel 12 receives backlight drive signal, progressively scans the monochromatic ash of display in display panel 21
When rank image, monochromatic light corresponding with monochromatic gray scale image is issued line by line.For example, the 1st row display unit is responded and is displayed in red
When gray scale image, the 1st row back light unit glows；When 1st row display unit responds and shows green gray scale image, the 1st row back
Light unit green light；When 1st row display unit responds and is displayed in blue gray scale image, the 1st row back light unit blue light-emitting.
In conclusion driver module is according to default sequential export display drive signals, backlight in the embodiment of the present invention
Drive module is according to the default sequential export backlight drive signal；Display panel receives display drive signals, and progressive scan is aobvious
Show monochromatic gray scale image；Backlight panel receives backlight drive signal, when display panel shows monochromatic gray scale image line by line, line by line
Issue monochromatic light corresponding with monochromatic gray scale image.Display unit and back light unit cooperation are shown in the embodiment of the present invention, can be with
The fluorescent lifetime for lengthening back light unit, to improve display brightness.Further, when can compress the display of a color image frame
Between, refreshing frequency is improved, to promote display effect.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, 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 the process, method, commodity or the equipment that include a series of elements not only include that
A little elements, but also including 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 for including the element.
Above to a kind of backlight module provided by the present invention, display device and its control method, it is described in detail,
Used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only used
In facilitating the understanding of the method and its core concept of the invention；At the same time, for those skilled in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as
Limitation of the present invention.
Claims (10)
1. a kind of backlight module, which is characterized in that the backlight module includes backlight drive module and backlight panel；The backlight
The side that display panel deviates from light-emitting surface is arranged in panel；The backlight panel has multirow back light unit, the display panel
With multirow display unit, a line back light unit corresponds to a line display unit；
The backlight drive module is configured as when the display panel shows monochromatic gray scale image line by line, according to it is default when
Sequence driving row back light unit successively issues monochromatic light corresponding with the monochrome gray scale image, so that display panel display is color
Chromatic graph picture.
2. backlight module according to claim 1, which is characterized in that
The backlight drive module is configured as showing the monochromatic gray-scale figure in the Nth row display unit of the display panel
When picture, the Nth row back light unit of the backlight panel is driven to issue monochromatic light corresponding with the monochrome gray scale image；Wherein, N
For positive integer.
3. backlight module according to claim 2, which is characterized in that the monochrome gray scale image includes the first gray-scale figure
Picture, the second gray scale image and third gray scale image；
The backlight drive module is configured as when the Nth row display unit shows first gray scale image, drives institute
It states Nth row back light unit and issues monochromatic light corresponding with first gray scale image；Described in being shown in the Nth row display unit
When the second gray scale image, the Nth row back light unit is driven to issue monochromatic light corresponding with second gray scale image；Described
When Nth row display unit shows the third gray scale image, the Nth row back light unit is driven to issue and the third gray-scale figure
As corresponding monochromatic light；
Wherein, the Nth row display unit issues monochrome corresponding with first gray scale image in the Nth row back light unit
After light, second gray scale image is scanned, is issued in the Nth row back light unit corresponding with second gray scale image
After monochromatic light, the third gray scale image is scanned.
4. backlight module according to claim 1, which is characterized in that the back light unit includes multiple monochromatic sources；
The backlight drive module is configured as when display panel progressively scans and shows monochromatic gray scale image, according to it is default when
Sequence successively drives monochromatic source corresponding with the monochrome gray scale image in row back light unit to shine.
5. backlight module according to claim 4, which is characterized in that
The back light unit is straight-down negative rgb light source；
The monochromatic source is light emitting diode.
6. backlight module according to claim 1, which is characterized in that the display time of a line display unit carries on the back with corresponding row
The fluorescent lifetime of light unit is identical.
7. a kind of display device, which is characterized in that the display device includes display panel, driver module, and as weighed
Benefit requires the described in any item backlight modules of 1-6；
The backlight module includes backlight drive module and backlight panel；The backlight panel setting deviates from the display panel
The side of light-emitting surface；The backlight panel has multirow back light unit, and the display panel has multirow display unit, a line back
Light unit corresponds to a line display unit；
The driver module is configured as progressively scanning the monochromatic grayscale of display according to display panel described in default Timing driver
Image；
The backlight drive module is configured as when the display panel shows monochromatic gray scale image line by line, according to described pre-
If Timing driver backlight panel issues monochromatic light corresponding with the monochrome gray scale image line by line, so that the display panel is shown
Color image.
8. a kind of control method of display device, which is characterized in that it is applied to display device as claimed in claim 7, it is described
Method includes:
Driver module is according to default sequential export display drive signals, and backlight drive module is according to the default sequential export
Backlight drive signal；
Display panel receives the display drive signals, and progressive scan shows monochromatic gray scale image；
Backlight panel receives the backlight drive signal, when the display panel shows monochromatic gray scale image line by line, sends out line by line
Monochromatic light corresponding with the monochrome gray scale image out.
9. according to the method described in claim 8, it is characterized in that, the display panel receives the display drive signals, by
Row scanning shows monochromatic gray scale image, comprising:
The Nth row display unit of the display panel is scanned, the Nth row display unit responds and shows the first grayscale
Image；
It is aobvious to the Nth row at the end of Nth row back light unit of the backlight panel corresponds to first gray scale image and shines
Show that unit is scanned, the Nth row display unit responds and shows the second gray scale image；
At the end of the Nth row back light unit corresponds to second gray scale image and shines, the Nth row display unit is carried out
Scanning, the Nth row display unit respond and show third gray scale image；
Wherein, N is positive integer.
10. according to the method described in claim 9, it is characterized in that, the display panel receives the display drive signals, by
Row scanning shows monochromatic gray scale image, comprising:
When the Nth row back light unit corresponds to first gray scale image and shines, adjacent N+1 row display unit is carried out
Scanning.
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