CN205158882U - ELED developments back of body light control system - Google Patents
ELED developments back of body light control system Download PDFInfo
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- CN205158882U CN205158882U CN201520941136.2U CN201520941136U CN205158882U CN 205158882 U CN205158882 U CN 205158882U CN 201520941136 U CN201520941136 U CN 201520941136U CN 205158882 U CN205158882 U CN 205158882U
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Abstract
The utility model discloses a ELED developments back of body light control system, wherein, this system includes: backlight processing circuit, optical processing board, backlight drive plate and static plane backlight, the source processing circuit that is shaded is used for acquireing SOC picture signal, decodes SOC picture signal into the light and shade signal and with light and shade signal transfer to optical processing board, the optical processing board is equipped with the transparency carrier, the light and shade signal is received to the optical processing board to break -make state according to light valve on the light and shade signal real time control transparency carrier, the backlight drive plate provides the electric energy for backlight processing circuit and static plane backlight, static plane backlight is used for seeing through the transparency carrier provides dynamic light source for liquid crystal display panel. Through being the light and shade signal with SOC picture signal conversion, static backlight can be controlled and the light to the liquid crystal display panel on is conveyed, liquid crystal display panel goes out final display's picture according to this developments light source and the deemphasis of SOC picture to realize dynamic display frame.
Description
Technical field
The utility model relates to dynamic backlight source control technology field, particularly, relates to a kind of ELED dynamic backlight source control system.
Background technology
At present, along with the LCD TV thickness of main flow is more and more thinner, size increasing and to televisor color and to comparison require more and more higher, occurred the dynamic backlight source control system of DLED (straight-down negative LED), but ELED (side entering type LED) backlight optical control is blank in the industry.
Televisor OC (liquid crystal panel) mainly contains hard screen and soft screen two kinds in the industry, although wherein firmly shield because self structure characteristic picture quality is higher than soft screen, easily produces light leak and allows many complete system plants hang back.
The dynamic backlight source of existing DLED controls to go to control backlight by Region control LED in the industry, and the televisor of DLED limits due to self structure, and thickness is all thick than ELED.
At present, for traditional backlight LED information display system, static backlight source comprises backlight driver plate and Static planar backlight composition.Traditional E LED backlight just acts on below OC by a kind of planar light source of static state, by OC self control interface light and shade, can not realize dynamic backlight source control.
Utility model content
The utility model can not realize dynamic backlight source control defect to overcome in prior art, according to an aspect of the present utility model, proposes a kind of ELED dynamic backlight source control system.
A kind of ELED dynamic backlight source control system that the utility model embodiment provides, comprising: backlight signal processing circuit, optical processing plate, backlight driver plate and Static planar backlight;
Wherein, SOC picture signal, for obtaining SOC picture signal, is decoded as light and shade signal and light and shade signal is sent to optical processing plate by backlight treatment circuit;
Optical processing plate is provided with transparency carrier, and transparency carrier is provided with the light valve circuit for controlling light penetration, and transparency carrier is arranged between static backlight source and liquid crystal panel; Optical processing plate receives light and shade signal, and controls the on off operating mode of light valve on transparency carrier in real time according to light and shade signal;
Backlight driver plate is connected with Static planar backlight with backlight signal processing circuit, for backlight signal processing circuit and Static planar backlight provide electric energy;
Static planar backlight is used for through transparency carrier for liquid crystal panel provides dynamic light source.
In technique scheme, light and shade signal comprises clear signal and/or dark signal;
Optical processing plate controls the light valve of clear signal corresponding position for logical state, controls the light valve of dark signal corresponding position for disconnected state.
In technique scheme, SOC picture signal comprises rgb signal and/or grayscale signal;
Rgb value in rgb signal is less than the signal that gray-scale value in the signal of default RGB threshold value and/or grayscale signal is less than default gray-scale value and is converted to dark signal by backlight treatment circuit.
In technique scheme, backlight signal processing circuit comprises filtering circuit and/or signaling conversion circuit;
Filtering circuit is used for carrying out filtering process to SOC picture signal;
Signaling conversion circuit is used for SOC picture signal to be converted to light and shade signal.
In technique scheme, also comprise: liquid crystal panel;
Liquid crystal panel is used for showing final picture according to SOC picture signal and dynamic light source.
In technique scheme, liquid crystal panel is TFT-LCD.
In technique scheme, the integrated TCON of liquid crystal panel; TCON is used for the operating voltage, working signal and/or the clock signal that are converted to by SOC picture signal needed for liquid crystal panel.
In technique scheme, also comprise: SOC;
SOC is connected with TCON with backlight signal processing circuit respectively, for being respectively backlight signal processing circuit and TCON provides SOC picture signal.
A kind of ELED dynamic backlight source control system that the utility model embodiment provides, by SOC picture signal is converted to light and shade signal, and then static backlight source can be controlled by the transparency carrier on optical processing plate and be sent to light on liquid crystal panel, this optical processing plate and static backlight source constitute dynamic backlight source, liquid crystal panel restores the picture of final display according to this dynamic light source and SOC picture signal, thus realizes Dynamic Announce picture.Dynamic backlight source can provide black signal or local black signal to liquid crystal panel LCD under black picture or under the black picture in local, makes light can not be radiated at liquid crystal panel lower surface, even if there is stress LCD local like this, also can not produce leakage problem; Meanwhile, overall picture is also experienced less than light leak bad on expressing.
Other features and advantages of the utility model will be set forth in the following description, and, partly become apparent from instructions, or understand by implementing the utility model.The purpose of this utility model and other advantages realize by structure specifically noted in write instructions, claims and accompanying drawing and obtain.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for instructions, is used from explanation the utility model, does not form restriction of the present utility model with embodiment one of the present utility model.In the accompanying drawings:
Fig. 1 is the first structural drawing of ELED dynamic backlight source control system in the utility model embodiment;
Fig. 2 is the second structural drawing of ELED dynamic backlight source control system in the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model not by the restriction of embodiment.
According to the utility model embodiment, provide a kind of ELED dynamic backlight source control system, Fig. 1 is system architecture schematic diagram, specifically comprises: backlight signal processing circuit 10, optical processing plate 20, backlight driver plate 30 and Static planar backlight 40.
Concrete, backlight treatment circuit 10 is connected with SCO (SystemonaChip, SOC (system on a chip)), for obtaining the SOC picture signal that SOC sends, SOC picture signal being decoded as light and shade signal simultaneously and light and shade signal is sent to optical processing plate 20.SOC picture signal comprises rgb signal and/or grayscale signal;
In the utility model embodiment, light and shade signal comprises clear signal and/or dark signal.Wherein, the signal that rgb value in rgb signal is less than default RGB threshold value by backlight treatment circuit is converted to dark signal; Or the signal that gray-scale value in grayscale signal is less than default gray-scale value is converted to dark signal by backlight treatment circuit.Wherein, rgb value comprises R, G, B tri-values, the signal that three values are all less than a certain preset value can be converted to dark signal, also the signal that three value sums are less than a certain preset value can be converted to dark signal.All the other signals are converted to clear signal by backlight treatment circuit, and this remaining signal rgb value has exceeded certain value, and human eye sense organ is colour picture., it should be noted that, SOC picture signal, in units of pixel, is decoded as light and shade signal by backlight treatment circuit 10 meanwhile; The i.e. corresponding clear signal of each pixel or a dark signal.
Optical processing plate 20 is provided with transparency carrier, and this transparency carrier is provided with the light valve circuit that can control light penetration, is transmitted into the light through and off of liquid crystal panel for controlling static backlight source.This transparency carrier is arranged between static backlight source 40 and liquid crystal panel; Optical processing plate 20 receives light and shade signal, and controls the on off operating mode of light valve on transparency carrier in real time according to light and shade signal.Concrete, optical processing plate 20 controls the light valve of clear signal corresponding position for logical state, controls the light valve of dark signal corresponding position for disconnected state.
Such as, when a certain light valve on transparency carrier is for logical state, the light that static backlight source 40 is launched can be emitted to liquid crystal panel through this light valve; When the signal that a certain light valve on this transparency carrier is corresponding changes dark signal into, then this light valve is set to disconnected state, and this light valve now on transparency carrier stops the light that static backlight source 40 is launched, and namely on liquid crystal panel, corresponding position is shown as black picture.
Existing general backlight source is lasting area source, and therefore liquid crystal panel LCD can only realize black burst by self circuit; IPS on market shields firmly, because of the singularity of its electrical equipment theory structure, there will be that picture is abnormal to be manifested (be ater picture originally, but can appear light) at LCD self under being subject to the stress in self or the external world under black picture, is called light leak.In the utility model embodiment, dynamic backlight source can provide black signal or local black signal to liquid crystal panel LCD under black picture or under the black picture in local, make light can not be radiated at liquid crystal panel lower surface, even if there is stress LCD local like this, also can not produce leakage problem; Meanwhile, overall picture is also experienced less than light leak bad on expressing.
Backlight driver plate 30 is connected with Static planar backlight 40 with backlight signal processing circuit 10, for backlight signal processing circuit 10 and Static planar backlight 40 provide electric energy; Static planar backlight 40 provides dynamic light source for the transparency carrier through optical processing plate 20 for liquid crystal panel.
A kind of ELED dynamic backlight source control system that the utility model embodiment provides, by SOC picture signal is converted to light and shade signal, and then static backlight source can be controlled by the transparency carrier on optical processing plate and be sent to light on liquid crystal panel, this optical processing plate and static backlight source constitute dynamic backlight source, liquid crystal panel restores the picture of final display according to this dynamic light source and SOC picture signal, thus realizes Dynamic Announce picture.
Preferably, backlight signal processing circuit 10 comprises filtering circuit and/or signaling conversion circuit.Wherein, filtering circuit is used for carrying out filtering process to SOC picture signal; Signaling conversion circuit is used for SOC picture signal to be converted to light and shade signal.
Concrete, filter clear signal according to filtering circuit, only retain dark signal, and be disconnected state (all the other points keep leading to state) according to corresponding light valve on the dark signal control transparency carrier retained.SOC picture signal directly can be converted to clear signal and/or dark signal by signaling conversion circuit.
Preferably, shown in Figure 2, this device also comprises liquid crystal panel 50; Liquid crystal panel 50 is for showing final picture according to SOC picture signal and dynamic light source.
Wherein, this liquid crystal panel 50 is specifically as follows TFT-LCD (ThinFilmTransistorLiquidCrystalDisplay, Thin Film Transistor-LCD), utilizes thin film transistor (TFT) to produce voltage, controls liquid crystal and turns to.
The integrated TCON of this liquid crystal panel 50, or external TCON (TimerControlRegister, timer/counter control register).TCON is used for the operating voltage, working signal and/or the clock signal that are converted to by SOC picture signal needed for liquid crystal panel.Concrete, various timing control signals required for integrated circuit can be generated according to the clock signal of input.
Preferably, shown in Figure 2, this device also comprises: SOC; SOC is connected with TCON with backlight signal processing circuit 10 respectively, for being respectively backlight signal processing circuit 10 and TCON provides SOC picture signal.
A kind of ELED dynamic backlight source control system that the utility model embodiment provides, by SOC picture signal is converted to light and shade signal, and then static backlight source can be controlled by the transparency carrier on optical processing plate and be sent to light on liquid crystal panel, this optical processing plate and static backlight source constitute dynamic backlight source, liquid crystal panel restores the picture of final display according to this dynamic light source and SOC picture signal, thus realizes Dynamic Announce picture.Dynamic backlight source can provide black signal or local black signal to liquid crystal panel LCD under black picture or under the black picture in local, makes light can not be radiated at liquid crystal panel lower surface, even if there is stress LCD local like this, also can not produce leakage problem; Meanwhile, overall picture is also experienced less than light leak bad on expressing.
The utility model can have multiple multi-form embodiment; above for Fig. 1-Fig. 2 by reference to the accompanying drawings to the technical solution of the utility model explanation for example; this does not also mean that the instantiation that the utility model is applied can only be confined in specific flow process or example structure; those of ordinary skill in the art should understand; specific embodiments provided above is some examples in multiple its preferred usage, and the embodiment of any embodiment the utility model claim all should within technical solutions of the utility model scope required for protection.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. an ELED dynamic backlight source control system, is characterized in that, comprising: backlight signal processing circuit, optical processing plate, backlight driver plate and Static planar backlight;
Described SOC picture signal, for obtaining SOC picture signal, is decoded as light and shade signal and described light and shade signal is sent to described optical processing plate by described backlight signal processing circuit;
Described optical processing plate is provided with transparency carrier, and described transparency carrier is provided with the light valve circuit for controlling light penetration, and described transparency carrier is arranged between described Static planar backlight and liquid crystal panel; Described optical processing plate receives described light and shade signal, and controls the on off operating mode of light valve on described transparency carrier in real time according to described light and shade signal;
Described backlight driver plate is connected with described Static planar backlight with described backlight signal processing circuit, for described backlight signal processing circuit and described Static planar backlight provide electric energy;
Described Static planar backlight is used for through described transparency carrier for liquid crystal panel provides dynamic light source.
2. system according to claim 1, is characterized in that, described light and shade signal comprises clear signal and/or dark signal;
Described optical processing plate controls the light valve of clear signal corresponding position for logical state, controls the light valve of dark signal corresponding position for disconnected state.
3. system according to claim 2, is characterized in that, described SOC picture signal comprises rgb signal and/or grayscale signal;
Rgb value in rgb signal is less than the signal that gray-scale value in the signal of default RGB threshold value and/or grayscale signal is less than default gray-scale value and is converted to dark signal by described backlight signal processing circuit.
4., according to the arbitrary described system of claim 1-3, it is characterized in that, described backlight signal processing circuit comprises filtering circuit and/or signaling conversion circuit;
Described filtering circuit is used for carrying out filtering process to described SOC picture signal;
Described signaling conversion circuit is used for described SOC picture signal to be converted to light and shade signal.
5., according to the arbitrary described system of claim 1-3, also comprise: liquid crystal panel;
Described liquid crystal panel is used for showing final picture according to SOC picture signal and dynamic light source.
6. system according to claim 5, is characterized in that, described liquid crystal panel is TFT-LCD.
7. system according to claim 5, is characterized in that, the integrated TCON of described liquid crystal panel; Described TCON is used for the operating voltage, working signal and/or the clock signal that are converted to by SOC picture signal needed for liquid crystal panel.
8. system according to claim 7, is characterized in that, also comprises: SOC;
Described SOC is connected with described TCON with described backlight signal processing circuit respectively, for being respectively described backlight signal processing circuit and described TCON provides SOC picture signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520941136.2U CN205158882U (en) | 2015-11-23 | 2015-11-23 | ELED developments back of body light control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520941136.2U CN205158882U (en) | 2015-11-23 | 2015-11-23 | ELED developments back of body light control system |
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| Publication Number | Publication Date |
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| CN205158882U true CN205158882U (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520941136.2U Expired - Fee Related CN205158882U (en) | 2015-11-23 | 2015-11-23 | ELED developments back of body light control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105654910A (en) * | 2015-11-23 | 2016-06-08 | 乐视致新电子科技（天津）有限公司 | ELED dynamic backlight control system and control method thereof |
-
2015
- 2015-11-23 CN CN201520941136.2U patent/CN205158882U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105654910A (en) * | 2015-11-23 | 2016-06-08 | 乐视致新电子科技（天津）有限公司 | ELED dynamic backlight control system and control method thereof |
| WO2017088362A1 (en) * | 2015-11-23 | 2017-06-01 | 乐视控股（北京）有限公司 | Eled dynamic backlight control system and control method |
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Effective date of registration: 20170721 Granted publication date: 20160413 |
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Date of cancellation: 20200721 Granted publication date: 20160413 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20171123 |