CN1941051A - Control method and device of backlighting device - Google Patents
Control method and device of backlighting device Download PDFInfo
- Publication number
- CN1941051A CN1941051A CNA2006101287502A CN200610128750A CN1941051A CN 1941051 A CN1941051 A CN 1941051A CN A2006101287502 A CNA2006101287502 A CN A2006101287502A CN 200610128750 A CN200610128750 A CN 200610128750A CN 1941051 A CN1941051 A CN 1941051A
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- pilot lamp
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- background lighting
- lighting installation
- aspect ratio
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mathematical Physics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The present invention intends to provide a control method of backlighting device which can reduce power consumption of backlighting without decreasing the luminance of the display according to the display proportion of image output from image display to close the indicator of blank field. The method includes the following steps: the step of looking up the output image display proportion; the step of reading out the indicator control data corresponding to memory according to said display proportion; the step of selecting part or entirely startup from majority indicators according to said indicator control data. Moreover, control device adopts the backlighting device of the present invention comprises the following subassembly: backlighting device equipped with majority indicators; circulator for controlling startup of said the majority indicators of backlighting device; memory section for corresponding to memory indicator control data of said majority indicators according to the display proportion; looking up the output image display proportion, reading out said display proportion corresponding to the indicator control data, controller selecting part or entirely startup from majority indicators according to said indicator control data.
Description
Technical field
The present invention is the image display device related invention, and more specifically saying so needs the background illumination of the image of background illumination display module pilot lamp control method and device related invention.
Background technology
Usually the liquid crystal indicator of using as the image display medium of the display of personal computer or notebook computer etc. does not possess self-lighting function, and therefore need establish light-emitting device in addition is background lighting installation (backlight device).The above-mentioned background lighting device is installed in liquid crystal indicator back or bottom surface, penetrates light to the display frame back side that shows by LCD MODULE, makes the user can see its display frame.What be applicable to this background lighting installation mainly contains cold-cathode fluorescence lamp (cold cathod fluorescentlamp).Recently, along with the scope of application of the device of technical development LCD also in variation, and the display frame of above-mentioned liquid crystal indicator is also maximized being tending towards.Under the situation that this liquid crystal indicator maximizes, with single pilot lamp then can't the above-mentioned liquid crystal indicator of ample supply background frame.Therefore, traditional approach proposes the background lighting installation of the employing final election mode that a plurality of pilot lamp big or small in parallel according to liquid crystal indicator use.But, when the above-mentioned background lighting device is equipped with a plurality of pilot lamp, for lighting the problem that there is the transition consumes power in each pilot lamp.Therefore, press for exploitation and do not reduce the technology that display frame brightness also can reduce a plurality of pilot lamp power consumption of outfit.
Summary of the invention
The present invention is intended to overcome the problem points of above-mentioned traditional approach, purpose of the present invention is for providing: according to the pilot lamp that the aspect ratio of the image of video display output is closed the blanking field, the brightness that does not therefore reduce display frame also can reduce the background lighting installation control method of background illumination power consumption.
To achieve these goals, solve the background lighting installation control method of the most pilot lamp of employing outfit of the present invention of conventional art problem, take following technical scheme to realize:
The background lighting installation control method is characterized in that it comprised as the next stage:
(1) finds stage of image output aspect ratio;
(2) read stage by the pilot lamp control data of above-mentioned aspect ratio corresponding stored;
(3), from most pilot lamp, select the stage that partly or entirely starts according to above-mentioned pilot lamp control data.
Aforesaid background lighting installation control method, it is characterized in that finding by signal of video signal or display module set information with above-mentioned aspect ratio is the background lighting installation control method of characteristics.
Aforesaid background lighting installation control method is characterized in that being set as the pilot lamp of closing the blanking field according to above-mentioned aspect ratio with above-mentioned pilot lamp control data is the background lighting installation control method of characteristics.
Aforesaid background lighting installation control method is characterized in that being set as according to above-mentioned aspect ratio with above-mentioned pilot lamp control data and close the background lighting installation control method that the pilot lamp that does not reduce all brightness is characteristics from the pilot lamp in blanking field.
The background lighting installation control device, it comprises following assembly:
(1) background lighting installation of the most pilot lamp of outfit;
(2) circulator of the startup of most pilot lamp of control above-mentioned background lighting device;
(3) control the storage part of the pilot lamp control data that above-mentioned most pilot lamp uses by the aspect ratio corresponding stored;
(4) find the image output aspect ratio, read pilot lamp control data, from most pilot lamp, select the control part that partly or entirely starts according to above-mentioned pilot lamp control data by above-mentioned aspect ratio corresponding stored.
Aforesaid background lighting installation control device is characterized in that finding the background lighting installation control device that above-mentioned aspect ratio is characteristics with above-mentioned control part by signal of video signal or display module set information.
Aforesaid background lighting installation control device is characterized in that being set as the pilot lamp of closing the blanking field according to above-mentioned aspect ratio with above-mentioned pilot lamp control data is the background lighting installation control device of characteristics.
Aforesaid background lighting installation control device is characterized in that being set as according to above-mentioned aspect ratio with above-mentioned pilot lamp control data and cut out the background lighting installation control device that the pilot lamp that does not reduce all brightness is characteristics from the pilot lamp in blanking field.
The invention effect: as mentioned above, the present invention has: according to the pilot lamp that the aspect ratio of the image of video display output is closed the blanking field, the brightness that does not therefore reduce display frame also can reduce the effect of background illumination power consumption.
Description of drawings:
Fig. 1 is the simple knot composition of the image display device in the preferred example of the present invention
Fig. 2 is the process flow diagram of the background illumination in the preferred example of the present invention with the pilot lamp control method
Fig. 3 controls platform example for the background illumination in the preferred example of the present invention with pilot lamp
Wherein picture major part symbolic representation:
100: control part 102: storage part 104: circulator
106: background lighting installation 108-118: the 1st to the 6th pilot lamp
Embodiment:
The present invention goes for being equipped with the multiple image apparatus of background lighting installation, therefore only the composition of background lighting installation control section is done main the introduction in the following example.
Simple knot composition-Fig. 1 with reference to the image display device in the preferred example of the present invention, then control part 100 is controlled above-mentioned image display device totally, especially the horizontal or vertical synchronizing signal that receives signal of video signal in the preferred example of the present invention is found the aspect ratio of image output, or be the aspect ratio that image output is found on the basis with the display module set information, read the pilot lamp control data corresponding from storage part 102 with above-mentioned aspect ratio.Control part 100 is controlled the pilot lamp control data that circulators 104 make its 1st to the 6th pilot lamp 108-118 correspondence of controlling background lighting installation 106 read from storage part 102 afterwards.Storage part 102 storages comprise the multiple information of control part 100 handling procedures, mate the pilot lamp control platform of the pilot lamp control data corresponding with aspect ratio in the preferred example especially of the present invention.And above-mentioned storage part 102 storage display module set information and original pilot lamp state of a control information.
With reference to sample picture Fig. 3 of above-mentioned pilot lamp control platform, in the then above-mentioned pilot lamp control platform with the 1st to N aspect ratio corresponding stored the 1st to N pilot lamp control data.For example, if the 1st aspect ratio is 16: 9, then there is the blanking field in the picture top and bottom, therefore generate and close the 1st and the 6th pilot lamp 108,118, only open the control data of all the other pilot lamp 110-116, if the 2nd aspect ratio is 4: 3, then, therefore generate the control data of opening the 1st to the 6th pilot lamp 108-118 with the full frame image output.Wherein, above-mentioned pilot lamp control data be according to close some pilot lamp also not the test findings of all brightness of image set.Circulator 104 starts the 1st and the 6th pilot lamp 108,118 according to the control of control part 100.Further introduce for example, if control part 100 is according to 16: 9 aspect ratios finding, send to start to remove and be located at the 1st to the 6th pilot lamp 108 in blanking field up and down, outside 118 the 2nd are to the order of the 5th pilot lamp 110-116, then circulator 104 will only start the 2nd to the 5th pilot lamp 110-116 outside the 1st to the 6th pilot lamp 108,118.Different with it, as if 4: 3 aspect ratios finding according to control part 100, send the order that starts the 1st to the 6th pilot lamp 108-118, then start the 1st to the 6th pilot lamp 108-118.
Above-mentioned the 1st to the 6th pilot lamp 108-118 is a background lighting installation 106, and the transverse axis or the longitudinal axis of the LCD MODULE that does not show are arranged in parallel in the drawings, and the irradiation bias light is to the back side of above-mentioned LCD MODULE.
Be reference now with Fig. 2, introduction can be useful in the background illumination control method in the preferred example of above-mentioned image display device.
From outside input signal of video signal, then control part 100 is found the aspect ratio that output image signal is used.Finding of above-mentioned aspect ratio can be found according to the vertical and horizontal synchronization of signal of video signal, or finds according to the display module setting data of reflection user needs.Wherein, above-mentioned display module is set and can be realized by the user interface that does not show among the figure, because of this assignment procedure does not describe in detail for public technology.
Find above-mentioned aspect ratio, then control part 100 is read the pilot lamp control data corresponding with the aspect ratio of finding from the pilot lamp control platform of storage part 102.If the above-mentioned pilot lamp control data of reading is identical with the original pilot lamp state of a control that is stored in above-mentioned storage part 102, then control part 100 is no longer operated and end operation.
In contrast, if the above-mentioned pilot lamp control data of reading is identical different with original pilot lamp state of a control, when then control part 100 makes its opening/closing state of controlling the 1st to the 6th pilot lamp 108-118 according to above-mentioned pilot lamp control data control circulator 104, on storage part 102, store the opening/closing state of above-mentioned pilot lamp with the pilot lamp control forms.Each change aspect ratio all will carry out the operation of above-mentioned control part 100.
Above-mentioned example of the present invention comprises and contains that but promising implementation is multiple to embody the medium that the interpretation computing machine of program command is established in operation by computing machine.But the composition of the medium of above-mentioned interpretation computing machine is program command alone or in combination, data file, data structure.The program command of above-mentioned medium can be for the present invention designs especially or makes up, or also can grasp use jointly by the computer software professional quarters.
As mentioned above, though the present invention introduces with limited example and picture, the present invention is not limited to above-mentioned example, can carry out multiple modifications and changes to these records so long as have the personnel of rudimentary knowledge in the field under the present invention.Therefore, every employing is equal to and replaces or the technical scheme that form obtained of equivalent transformation all drops within the protection domain that right of the present invention asks.
Claims (8)
1, background lighting installation control method is characterized in that it comprised as the next stage:
(1) finds stage of image output aspect ratio;
(2) read stage by the pilot lamp control data of above-mentioned aspect ratio corresponding stored;
(3), from most pilot lamp, select the stage that partly or entirely starts according to above-mentioned pilot lamp control data.
2, background lighting installation control method according to claim 1, it is characterized in that finding by signal of video signal or display module set information with above-mentioned aspect ratio is the background lighting installation control method of characteristics.
3, background lighting installation control method according to claim 1 is characterized in that being set as the pilot lamp of closing the blanking field according to above-mentioned aspect ratio with above-mentioned pilot lamp control data is the background lighting installation control method of characteristics.
4, background lighting installation control method according to claim 1 is characterized in that being set as according to above-mentioned aspect ratio with above-mentioned pilot lamp control data and close the background lighting installation control method that the pilot lamp that does not reduce all brightness is characteristics from the pilot lamp in blanking field.
5, background lighting installation control device, it comprises following assembly:
(1) background lighting installation of the most pilot lamp of outfit;
(2) circulator of the startup of most pilot lamp of control above-mentioned background lighting device;
(3) control the storage part of the pilot lamp control data that above-mentioned most pilot lamp uses by the aspect ratio corresponding stored;
(4) find the image output aspect ratio, read pilot lamp control data, from most pilot lamp, select the control part that partly or entirely starts according to above-mentioned pilot lamp control data by above-mentioned aspect ratio corresponding stored.
6, background lighting installation control device according to claim 5 is characterized in that finding the background lighting installation control device that above-mentioned aspect ratio is characteristics with above-mentioned control part by signal of video signal or display module set information.
7, background lighting installation control device according to claim 5 is characterized in that being set as the pilot lamp of closing the blanking field according to above-mentioned aspect ratio with above-mentioned pilot lamp control data is the background lighting installation control device of characteristics.
8, background lighting installation control device according to claim 5 is characterized in that being set as according to above-mentioned aspect ratio with above-mentioned pilot lamp control data and cut out the background lighting installation control device that the pilot lamp that does not reduce all brightness is characteristics from the pilot lamp in blanking field.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050102354A KR100743295B1 (en) | 2005-10-28 | 2005-10-28 | Method and apparatus of controlling back light |
| KR1020050102354 | 2005-10-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1941051A true CN1941051A (en) | 2007-04-04 |
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ID=37959175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101287502A Pending CN1941051A (en) | 2005-10-28 | 2006-09-03 | Control method and device of backlighting device |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100743295B1 (en) |
| CN (1) | CN1941051A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848281A (en) * | 2010-04-23 | 2010-09-29 | 中兴通讯股份有限公司 | Power-saving terminal and power saving method thereof |
| US8223115B2 (en) | 2008-06-09 | 2012-07-17 | Lg Display Co., Ltd. | Liquid crystal display and driving method thereof |
| CN102044219B (en) * | 2009-10-15 | 2015-05-06 | 康佳集团股份有限公司 | Energy-saving device and method for liquid crystal screen and energy-saving liquid crystal screen |
| CN104795053A (en) * | 2015-04-27 | 2015-07-22 | 三星电子（中国）研发中心 | Screen brightness adjusting method and device and terminal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3873940B2 (en) * | 2003-07-31 | 2007-01-31 | セイコーエプソン株式会社 | Double-sided liquid crystal display |
-
2005
- 2005-10-28 KR KR1020050102354A patent/KR100743295B1/en active IP Right Grant
-
2006
- 2006-09-03 CN CNA2006101287502A patent/CN1941051A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8223115B2 (en) | 2008-06-09 | 2012-07-17 | Lg Display Co., Ltd. | Liquid crystal display and driving method thereof |
| CN101604513B (en) * | 2008-06-09 | 2012-07-25 | 乐金显示有限公司 | Liquid crystal display and driving method thereof |
| CN102044219B (en) * | 2009-10-15 | 2015-05-06 | 康佳集团股份有限公司 | Energy-saving device and method for liquid crystal screen and energy-saving liquid crystal screen |
| CN101848281A (en) * | 2010-04-23 | 2010-09-29 | 中兴通讯股份有限公司 | Power-saving terminal and power saving method thereof |
| CN104795053A (en) * | 2015-04-27 | 2015-07-22 | 三星电子（中国）研发中心 | Screen brightness adjusting method and device and terminal |
| CN104795053B (en) * | 2015-04-27 | 2018-07-13 | 三星电子（中国）研发中心 | Method, apparatus and terminal for adjusting screen intensity |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100743295B1 (en) | 2007-07-26 |
| KR20070045741A (en) | 2007-05-02 |
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