CN101620837A - Image display method and liquid crystal display device - Google Patents
Image display method and liquid crystal display device Download PDFInfo
- Publication number
- CN101620837A CN101620837A CN200910032660A CN200910032660A CN101620837A CN 101620837 A CN101620837 A CN 101620837A CN 200910032660 A CN200910032660 A CN 200910032660A CN 200910032660 A CN200910032660 A CN 200910032660A CN 101620837 A CN101620837 A CN 101620837A
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- drive circuit
- laser
- backlight
- drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses an image display method, comprising the following steps: receiving picture element signals of an image to be displayed; generating timing sequence driving signal; driving a laser to respectively generate three-color laser light; the three-color laser light is transmitted to a liquid crystal panel for being displayed through a backlight system. The invention also discloses a liquid crystal display device, a color filtering membrane can be omitted and color reproduction can be realized by filed order technology, the utilization rate of luminous energy is improved to achieve the effect of improving displaying brightness.
Description
Technical field
The present invention relates to a kind of lcd technology, relate in particular to a kind of image display method and liquid crystal indicator, this image display method and liquid crystal indicator adopt preface (Field Sequential) laser technology.
Background technology
Colour liquid crystal display device generally comprises the liquid crystal between liquid crystal panel and injection upper substrate and the infrabasal plate, and this liquid crystal panel has a upper substrate and an infrabasal plate.Colour liquid crystal display device also comprises the driving circuit and the module backlight that white light is provided to liquid crystal that are used to drive display panels.In colorized optical filtering type LCD, single pixel is divided into R (red), G (green) and three sub-pixels of B (indigo plant), and R (red), G (green) and B (indigo plant) light filter lay respectively in R, G and the B sub-pixel, comprise that also R, the G and the B that are arranged in the single pixel that is not divided into R, G and B sub-pixel are backlight.R, G and the B liquid crystal that passes backlight offers single pixel with three kinds of primitive color lights, thereby shows each primary colors in order in the mode of timesharing, multichannel, the color reproduction by the neural fusion of observer.
Such colour liquid crystal display device must use color filter film, and production cost is higher.
Summary of the invention
The display packing that the purpose of this invention is to provide a kind of back light system, with field preface laser technology is that liquid crystal indicator is set up back light system, can save the color filter film and realize color rendition, and improve the effect that the efficiency of light energy utilization reaches the raising display brightness by field preface technology.
Technical scheme of the present invention is that a kind of image display method may further comprise the steps: the picture element signal that receives image to be displayed; Produce the sequential drive signal; The drive laser instrument produces three look laser; Three look laser are sent to the output of liquid crystal panel reality through back light system respectively and show.
As a preferred embodiment of the present invention, described back light system comprises a backlight drive circuit, described backlight drive circuit is drive condition of pre-stored at least, and described backlight drive circuit generates described sequential drive signal according to the picture element signal and the drive condition of image to be displayed.
As a preferred embodiment of the present invention, described backlight drive circuit comprises the driving voltage generator, the driving voltage generator receives the drive condition that is associated with backlight illumination from the drive condition that backlight drive circuit provides, and produces the driving voltage of the laser instrument that is suitable for back light system in order.
As a preferred embodiment of the present invention, described backlight drive circuit comprises the pwm signal generator, the pwm signal generator receives the drive condition that is associated with colourity backlight from the drive condition that backlight drive circuit provides, and produces the pwm signal of the laser instrument that is suitable for back light system in order.
As a preferred embodiment of the present invention, described backlight drive circuit also comprises pre-stored, and at least one is used for the drive condition of liquid crystal display, and the liquid crystal panel drive signal that is used for liquid crystal display is selected and exported to described backlight drive circuit from the drive condition that is used for liquid crystal display of pre-stored.
The present invention also provides a kind of liquid crystal indicator device that improves the liquid crystal display resolution effect, can be applied in many product scopes such as TV, digital album (digital photo frame), computer monitor.
A kind of liquid crystal indicator, comprise back light system and liquid crystal panel, described back light system comprises red laser, green (light) laser, blue laser, backlight drive circuit and control module, described red laser, green (light) laser and blue laser send three look laser according to the sequential drive signal that backlight drive circuit produces respectively, three look laser are sent to liquid crystal panel through back light system respectively, and liquid crystal panel is according to three look laser display images.
As a preferred embodiment of the present invention, described backlight drive circuit is drive condition of pre-stored at least, described control module is gathered the picture element signal of image to be displayed, and described backlight drive circuit produces the sequential drive signal of laser instrument according to picture element signal and drive condition.
As a preferred embodiment of the present invention, described backlight drive circuit comprises the driving voltage generator, the driving voltage generator receives the drive condition that is associated with backlight illumination from the drive condition that backlight drive circuit provides, and produces the driving voltage of the laser instrument that is suitable for back light system in order.
As a preferred embodiment of the present invention, described backlight drive circuit comprises the pwm signal generator, the pwm signal generator receives the drive condition that is associated with colourity backlight from the drive condition that backlight drive circuit provides, and produces the pwm signal that is suitable for laser instrument backlight respectively in order.
As a preferred embodiment of the present invention, described backlight drive circuit also comprises pre-stored, and at least one is used for the drive condition of liquid crystal display, and the liquid crystal panel drive signal that is used for liquid crystal display is selected and exported to described backlight drive circuit from the drive condition that is used for liquid crystal display of pre-stored.
The present invention adopts a preface laser technology and just can realize that by a pixel color of three primary colours is synthetic, and need not use three sub-pixels synthesize color and reach the effect of raising liquid crystal display resolution, can reduce production costs.
Description of drawings
Accompanying drawing 2 is the structural representation of liquid crystal indicator in the preferred embodiment of the present invention;
Accompanying drawing 3 is the sequential drive controlling principle schematic of liquid crystal display in the preferred embodiment of the present invention;
Accompanying drawing 4 is the driving synoptic diagram of tricolor laser device in the preferred embodiment of the present invention;
1 is liquid crystal panel among the figure, and 2 is lamp guide and diffuser plate, and 3 is optical fiber, and 4 are optical fiber connection optical splitter.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail, thereby protection scope of the present invention is made more explicit defining so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that.
Be that example illustrates innovative idea of the present invention below with the televisor, but the invention is not restricted to use, can be suitable for consumer products such as computer, digital album (digital photo frame), DVD equally in field of television.
Referring to shown in Figure 1, the real method flow diagram in conjunction with back light system of the present invention elaborates display packing of the present invention.
In the liquid crystal TV set of back light system, the receiving element of liquid crystal TV set receives image to be shown or video signal source, control module can carry out collection analysis to the received signal then, as shown in Figure 3, control module herein is made up of MCU or IC, comprise master chip, decoding chip and control chip, thereby finish the picture element signal step that S1 receives image to be displayed.The picture element signal that master chip obtains obtains R, G and B tristimulus signals through the decoding of decoding chip, control chip drives backlight drive circuit generation sequential drive signal according to the R, the G that obtain and B tristimulus signals, promptly finishes the picture element signal generation sequential drive signal of S2 step according to image to be displayed.Control chip herein, master chip and decoding chip also can adopt a MCU to realize, are not could realize by several chips.In the present embodiment, backlight drive circuit also comprises driving voltage generator and pwm signal generator, be respectively the tricolor laser device driving voltage and pwm signal be provided, thereby realize the tricolor laser device three look laser are provided chronologically.Tricolor laser device herein is meant red, green, basket three look laser instruments.
In control module, according to the picture element signal of image to be displayed, analyze the composition of red, green, blue three coloured light of each pixel, thereby the sequential drive signal is provided, promptly step S3 sequential drive tricolor laser device produces three look laser respectively; Afterwards, the tricolor laser device sends three look laser respectively, is sent to liquid crystal panel by back light system, and promptly S4 step 3 look laser is sent to liquid crystal panel through back light system respectively; In embodiments of the present invention, be pre-stored with at least one corresponding drive condition that drives liquid crystal panel in the backlight drive circuit, liquid crystal panel is according to this drive condition and in conjunction with three look laser, reduce image to be displayed on liquid crystal panel, promptly step S5 liquid crystal panel is according to three look laser display images to be displayed.
In conjunction with the accompanying drawings 2 and 3, among the embodiment of liquid crystal indicator of the present invention, back light system comprises red laser, green (light) laser, blue laser, optical fiber 3, optical fiber connects optical splitter 4, lamp guide and diffuser plate 2, red laser, green (light) laser and blue laser produce three look laser respectively, three look laser can be sent to optical fiber through optical fiber 3 respectively and connect in the optical splitter 4, the effect that connects optical splitter 4 by optical fiber can at a time divide a certain monochromatic light DLT to cross optical fiber to enter in lamp guide and the diffuser plate 2, make light reach the effect of even scattering after the effect through lamp guide and diffuser plate 2, and then be sent in the liquid crystal panel 1, for liquid crystal indicator provides light source.The picture element signal that master chip obtains in the control module of liquid crystal indicator obtains R, G and B tristimulus signals through the decoding of decoding chip, perhaps adopt photoelectric conversion technique to convert the picture element signal of image to electric signal, control chip drives backlight drive circuit generation sequential drive signal according to the R, the G that obtain and B tristimulus signals.And the tricolor laser device produces and transmits in order R, G and B three look laser according to the picture element signal of image to be displayed and the requirement of sequential control, the image that liquid crystal panel 1 can will show the synthetic reproduction of three primary colours according to the temporary effect of human eye vision.
As shown in Figure 4, the backlight drive circuit of liquid crystal indicator of the present invention, comprise a driving voltage generator and a PWM (width modulation, Pulse Width Modulation) signal generator, the driving voltage generator receives the drive condition that is associated with backlight illumination from the drive condition that backlight drive circuit provides, so that produce the R that is suitable for back light system in order, the driving voltage of G and B, be that the driving circuit generator is red, green and blue laser provides control voltage, thereby makes red, green and blue laser changes the needs of brightness to realize showing by demand; The pwm signal generator receives the drive condition that is associated with colourity backlight from the drive condition that backlight drive circuit provides, so that produce the pwm signal that is suitable for R backlight, G and B respectively in order, thereby the output of realization tricolor laser device sequential is satisfied three look laser of image to be displayed requirement to back light system.
As shown in Figure 3, liquid crystal indicator of the present invention comprises above-mentioned back light system and liquid crystal panel 1, the red, green and blue light laser transmits laser to back light system according to the demand timesharing of shows signal, make laser can evenly arrive liquid crystal panel 1 by lamp guide in the back light system and diffuser plate, the observer obtains the image information that will show according to the temporary effect of the vision of vision system.
In conjunction with Fig. 3 and Fig. 4, in according to one exemplary embodiment of the present invention, liquid crystal indicator comprises that also the drive condition of the pre-stored that at least one is used for liquid crystal display is respectively applied for the drive condition of the pre-stored of tricolor laser with at least one, drive condition is respectively in response to same control signal, a corresponding driving condition that is used for liquid crystal and a corresponding driving condition that is used for tricolor laser are selected and exported to backlight drive circuit from the drive condition of one or more pre-stored, thereby realize the driving of liquid crystal and tricolor laser device.
The above; it only is the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (10)
1, a kind of method for displaying image is characterized in that, may further comprise the steps:
Receive the picture element signal of image to be displayed;
Produce the sequential drive signal;
Drive laser produces three look laser respectively;
Described three look laser are sent to liquid crystal panel output through back light system respectively and show.
2, method for displaying image according to claim 1, it is characterized in that: described back light system comprises backlight drive circuit, described at least one drive condition of backlight drive circuit pre-stored, described backlight drive circuit generates described sequential drive signal according to the picture element signal and the drive condition of image to be displayed.
3, method for displaying image according to claim 2, it is characterized in that: described backlight drive circuit comprises the driving voltage generator, described driving voltage generator receives the drive condition that is associated with backlight illumination from the drive condition that backlight drive circuit provides, and produces the driving voltage of the laser instrument that is suitable for back light system in order.
4, method for displaying image according to claim 2, it is characterized in that: described backlight drive circuit comprises the pwm signal generator, the pwm signal generator receives the drive condition that is associated with colourity backlight from the drive condition that backlight drive circuit provides, and produces the pwm signal of the laser instrument that is suitable for back light system in order.
5, according to the described method for displaying image of one of claim 1～4, it is characterized in that: described backlight drive circuit also comprises pre-stored, and at least one is used for the drive condition of liquid crystal display, and the liquid crystal panel drive signal that is used for liquid crystal display is selected and exported to described backlight drive circuit from the drive condition that is used for liquid crystal display of pre-stored.
6, a kind of liquid crystal indicator, comprise back light system and liquid crystal panel, it is characterized in that: described back light system comprises red laser, green (light) laser, blue laser, backlight drive circuit and control module, described red laser, green (light) laser and blue laser send three look laser according to the sequential drive signal that backlight drive circuit produces respectively, three look laser are sent to liquid crystal panel through back light system respectively, and liquid crystal panel is according to three look laser display images.
7, liquid crystal indicator according to claim 6, it is characterized in that: described backlight drive circuit is drive condition of pre-stored at least, described control module is gathered the picture element signal of image to be displayed, and described backlight drive circuit produces the sequential drive signal of laser instrument according to picture element signal and drive condition.
8, liquid crystal indicator according to claim 7, it is characterized in that: described backlight drive circuit comprises the driving voltage generator, the driving voltage generator receives the drive condition that is associated with backlight illumination from the drive condition that backlight drive circuit provides, and produces the driving voltage of the laser instrument that is suitable for back light system in order.
9, liquid crystal indicator according to claim 7, it is characterized in that: described backlight drive circuit comprises the pwm signal generator, the pwm signal generator receives the drive condition that is associated with colourity backlight from the drive condition that backlight drive circuit provides, and produces the pwm signal that is suitable for laser instrument backlight respectively in order.
10, according to the arbitrary described liquid crystal indicator of claim 6～9, it is characterized in that: described backlight drive circuit also comprises pre-stored, and at least one is used for the drive condition of liquid crystal display, and the liquid crystal panel drive signal that is used for liquid crystal display is selected and exported to described backlight drive circuit from the drive condition that is used for liquid crystal display of pre-stored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910032660A CN101620837A (en) | 2009-06-30 | 2009-06-30 | Image display method and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910032660A CN101620837A (en) | 2009-06-30 | 2009-06-30 | Image display method and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101620837A true CN101620837A (en) | 2010-01-06 |
Family
ID=41514045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910032660A Pending CN101620837A (en) | 2009-06-30 | 2009-06-30 | Image display method and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101620837A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225644A (en) * | 2015-11-05 | 2016-01-06 | 苏州苏大维格光电科技股份有限公司 | A kind of laser display apparatus and preparation method thereof |
| CN112118430A (en) * | 2019-06-20 | 2020-12-22 | 青岛海信激光显示股份有限公司 | Laser projection device |
-
2009
- 2009-06-30 CN CN200910032660A patent/CN101620837A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225644A (en) * | 2015-11-05 | 2016-01-06 | 苏州苏大维格光电科技股份有限公司 | A kind of laser display apparatus and preparation method thereof |
| CN112118430A (en) * | 2019-06-20 | 2020-12-22 | 青岛海信激光显示股份有限公司 | Laser projection device |
| US11831126B2 (en) | 2019-06-20 | 2023-11-28 | Hisense Laser Display Co., Ltd | Laser projection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101341526B (en) | Color LCD with bi-color sequential backlight | |
| CN101572058B (en) | Backlight driving circuit and driving method for driving the same | |
| CN104541321B (en) | Display, display control method, display control unit and electronic device | |
| CN101226291B (en) | Field sequence LCD and drive method thereof | |
| US8581887B2 (en) | Color-sequential display method | |
| CN101414449B (en) | Driving method for color sequential display | |
| CN101435935B (en) | Double-field sequence LCD device display method | |
| JP2007122018A (en) | Liquid crystal display device | |
| CN102356425A (en) | Field-sequential color type liquid crystal display apparatus and color display method therefor | |
| CN101872582A (en) | Liquid crystal indicator and driving method thereof | |
| CN106444137A (en) | Display panel, liquid crystal display and drive method of liquid crystal display | |
| TW200828235A (en) | Field sequential liquid crystal display and driving method thereof | |
| US7692624B2 (en) | Liquid crystal display, method for displaying color images, and method for controlling light sources of an LCD panel | |
| CN109243386A (en) | A kind of backlight module, display device and its control method | |
| CN108172194B (en) | Display panel and its driving method, driving device, drive system | |
| CN101494039A (en) | Apparatus and method for adjusting white balance of color sequence method display | |
| US20080068317A1 (en) | Display apparatus | |
| CN101295480A (en) | Alternation contra-rotation scanning type indication method and device | |
| CN101859037A (en) | Liquid crystal display (LCD) device | |
| CN101620837A (en) | Image display method and liquid crystal display device | |
| US20100013755A1 (en) | Color sequential liquid crystal display and liquid crystal display panel driving method thereof | |
| CN202710912U (en) | Optical processing device and high-frame-frequency colour display imaging device | |
| CN104464679A (en) | Liquid crystal display and driving method thereof | |
| CN101587696B (en) | Response time compensation device of color sequential display | |
| CN113489959A (en) | Time sequence color projection LED drive circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20100106 |