CN204242565U - 3d display backlight module and 3d display device - Google Patents
3d display backlight module and 3d display device Download PDFInfo
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- CN204242565U CN204242565U CN201420788003.1U CN201420788003U CN204242565U CN 204242565 U CN204242565 U CN 204242565U CN 201420788003 U CN201420788003 U CN 201420788003U CN 204242565 U CN204242565 U CN 204242565U
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Abstract
The utility model provides a kind of 3D display backlight module and 3D display device, this 3D display backlight module comprises at least one backlight area, described backlight area comprises the first sub-backlight area and the second sub-backlight area that are arranged in order, first sub-backlight area and the second sub-backlight area comprise at least two sub-back light units respectively, the first corresponding sub-back light unit in the first sub-back light unit in first sub-backlight area and the second sub-backlight area has public adjacent side, the bearing of trend of described public adjacent side is the length direction of sub-back light unit, wherein the width sum of the width of the first sub-back light unit back light unit corresponding to first is less than or equal to the width of other arbitrary sub-back light units in the first sub-backlight area and the second sub-backlight area.This backlight module can be applicable to oversize 3D display, the degree that the zone line produced when alleviating 3D display is shinny, thus improves the picture quality of 3D display.
Description
Technical field
The utility model relates to technical field of liquid crystal display, refers in particular to a kind of 3D display backlight module and 3D display device.
Background technology
In display field, the flat-panel monitor of ultrahigh resolution and oversize is the focus of each competition, but show the growing market demand with 3D along with improving constantly of resolution, the required data volume transmitted and process of panel drive circuit is just day by day huge, on the panel of simultaneously oversize, transmission range is very long again, is therefore faced with severe problems of Signal Integrity.
Based on the problems referred to above, at present for oversize and ultrahigh resolution display panel, if resolution is 3840 × 2160, refresh rate is the 3D display panel of 120Hz, there is the displaying principle based on splicing, but owing to have employed tiled display principle, the direction of scanning of panel needs to change to sometimes, under to the mode entered or deviate from up and down, and the direction of scanning of backlight module also must be corresponding with the direction of scanning of display panel during 3D display, adopt up and down to when entering or deviate from up and down, as the partitioned mode structure that Fig. 1 is prior art backlight module, when 3D shows, the zone line of synchronization backlight module has two subregions to open, large compared to other regions of brightness, therefore there is the phenomenon that zone line turns white, have a strong impact on picture quality.
Utility model content
Based on more than, the utility model provides a kind of 3D display backlight module and 3D display device, can be applicable to oversize 3D display, the shinny degree of zone line produced when alleviating 3D display, thus improves the picture quality of 3D display.
The utility model provides a kind of 3D display backlight module, comprise at least one backlight area, described backlight area comprises the first sub-backlight area and the second sub-backlight area that are arranged in order, described first sub-backlight area and described second sub-backlight area comprise at least two sub-back light units respectively, the orientation of each described sub-back light unit is identical, the first corresponding sub-back light unit in the first sub-back light unit in described first sub-backlight area and described second sub-backlight area has public adjacent side, the bearing of trend of described public adjacent side is the length direction of described sub-back light unit, width and the width sum of described first corresponding sub-back light unit of wherein said first sub-back light unit are less than or equal to the width of other arbitrary sub-back light units in described first sub-backlight area and described second sub-backlight area.
Preferably, 3D display backlight module described above, the number of wherein said first sub-backlight area neutron back light unit is identical with the number of described second sub-backlight area neutron back light unit, and in described first sub-backlight area and described second sub-backlight area, each sub-back light unit except described first sub-back light unit and described first corresponding sub-back light unit all has the first width.
Preferably, 3D display backlight module described above, the width sum of described first sub-back light unit and described first corresponding sub-back light unit equals described first width.
Preferably, 3D display backlight module described above, the width of described first sub-back light unit equals the width of described first corresponding sub-back light unit.
The utility model also provides a kind of 3D display device, comprises display panel, wherein also comprises the 3D display backlight module as above described in any one, wherein said display panel comprise with described backlight module each described in viewing area corresponding to backlight area.
At least one in the utility model specific embodiment technique scheme has following beneficial effect:
3D display backlight module described in the utility model embodiment, compared to prior art, by the reduced width of adjacent two sub-back light units of the first sub-backlight area and the second sub-backlight area, the width sum of two sub-back light units is made to be less than or equal to the width of other arbitrary sub-back light units in the first sub-backlight area and the second sub-backlight area, like this when the scan mode adopting subtend to scan or to deviate from mutually is lighted, when the first sub-back light unit and the first corresponding sub-back light unit open simultaneously light, it is consistent or less that width and other subregions open the width lighted, the brightness of therefore lighting is also consistent with the brightness that other subregions are lighted or slightly low, thus reach the effect of the shinny degree of zone line produced when alleviating 3D display.
Accompanying drawing explanation
Fig. 1 represents the partitioned organization schematic diagram of prior art 3D display backlight module;
Fig. 2 represents the partitioned organization schematic diagram of 3D display backlight module described in the utility model first embodiment;
Fig. 3 represents the partitioned organization schematic diagram of 3D display backlight module described in the utility model second embodiment;
Fig. 4 adopts control method described in the utility model embodiment, the partitioned organization of 3D display backlight module and the corresponding relation figure of lighting time for representing.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with the accompanying drawings and the specific embodiments the utility model is described in detail.
3D display backlight module described in the utility model specific embodiment, comprise at least one backlight area, wherein said backlight area comprises at least two the first sub-backlight area and the second sub-backlight area that are arranged in order, described first sub-backlight area and described second sub-backlight area comprise at least two sub-back light units respectively, the orientation of each sub-back light unit is identical, the first corresponding sub-back light unit in the first sub-back light unit in first sub-backlight area and the second sub-backlight area has public adjacent side, the bearing of trend of described public adjacent side is the length direction of sub-back light unit, width and the width sum of described first corresponding sub-back light unit of wherein said first sub-back light unit are less than or equal to the width of other arbitrary sub-back light units in described first sub-backlight area and described second sub-backlight area.
The described 3D display backlight module of above-described embodiment, compared to prior art, by adjacent two sub-back light units of the first sub-backlight area and the second sub-backlight area, also be the reduced width of the first sub-back light unit and the second corresponding sub-back light unit, the width sum of two sub-back light units is made to be less than or equal to the width of other arbitrary sub-back light units in the first sub-backlight area and the second sub-backlight area, like this when adopting the mode of subtend scanning to light, when the first sub-back light unit and the second corresponding sub-back light unit open simultaneously light, it is consistent or less that width and other subregions open the width lighted, the brightness of therefore lighting is also consistent with the brightness that other subregions are lighted or slightly low, thus reach the effect of the shinny degree of zone line produced when alleviating 3D display.
Preferably, the number of described first sub-backlight area neutron back light unit is identical with the number of described second sub-backlight area neutron back light unit, in described first sub-backlight area, each sub-back light unit except described first sub-back light unit all has the first width; In described second sub-backlight area, each sub-back light unit except described first corresponding sub-back light unit also all has the first width.
Fig. 2 is the partitioned organization schematic diagram of 3D display backlight module described in the utility model first embodiment.Consult shown in Fig. 2, in a first embodiment, described 3D display backlight module comprises a backlight area, comprise two sub-backlight area, also be the first sub-backlight area 10 and the second sub-backlight area 20, wherein comprise eight sub-back light units be arranged in order respectively in the first sub-backlight area 10 and the second sub-backlight area 20, respectively by being arranged in order from top to bottom, and the first sub-backlight area 10 is identical with the orientation of eight sub-back light units in the second sub-backlight area 20, length direction is horizontal direction.
Composition graphs 2, in a first embodiment, first sub-backlight area 10 comprises sub-back light unit 11 (the first sub-back light unit), second sub-backlight area 20 comprises sub-back light unit 21 (the first corresponding sub-back light unit), its neutron back light unit 11 and sub-back light unit 21 are respectively adjacent two sub-back light units of the first sub-backlight area 10 and the second sub-backlight area 20, there is public adjacent side 1, and the bearing of trend of public adjacent side 1 is the length direction of sub-back light unit.
In addition, in the first sub-backlight area 10, except described sub-back light unit 11, each sub-back light unit has the first width; In second sub-backlight area 20, except described sub-back light unit 21, each sub-back light unit has the second width.In the utility model first embodiment, described first width equals the second width, and also namely in whole backlight module, except sub-back light unit 11 and sub-back light unit 21, the width of each sub-back light unit is equal.
Further, in the utility model first embodiment, sub-back light unit 11 and the width sum of sub-back light unit 21 equal the width of other sub-back light unit, and more preferably, the width of described sub-back light unit 11 equals the width of described sub-back light unit 21, and also namely the width of sub-back light unit 11 and the width of described sub-back light unit 21 equal 1/2nd of the width of other sub-back light units respectively.
Based on the 3D display backlight module of structure shown in Fig. 2, the upper and lower mode to entering can be adopted to scan 3D display backlight module, when each subregion of backlight module is lighted, sub-back light unit 11 and sub-back light unit 21 are opened simultaneously and are lighted, it is consistent that width and other subregions open the width lighted, the brightness of therefore lighting is also consistent with the brightness that other subregions are lighted, there will not be prior art due to the width of each sub-back light unit consistent, lighting to making zone line the twice that width is other subregions, causing the problem that brightness is too high; In like manner, when adopt deviate from up and down mode scan time, opened by the sub-back light unit in the middle of backlight area and light, the sub-back light unit at edge is made to light again successively, the sub-back light unit 11 of zone line and sub-back light unit 21 are opened simultaneously and are lighted, and reach width and other subregions equally and open the consistent effect of the width lighted.
It will be understood by those skilled in the art that and adopt the partitioned organization of the backlight module of the utility model principle to be not limited to only be formed as form shown in Fig. 2, such as, for oversize 3D display, be not limited to only comprise a backlight area.
Figure 3 shows that the partitioned organization schematic diagram of backlight module described in the utility model second embodiment.In a second embodiment, described backlight module comprises two backlight area, also be the sub-backlight area 20 of the first sub-backlight area 10, second, the 3rd sub-backlight area 30 and the 4th sub-backlight area 40, wherein the orientation of each sub-backlight area neutron back light unit is identical, and length direction is horizontal direction.
In a second embodiment, the sub-back light unit 11 of the first sub-backlight area 10 is adjacent with the sub-back light unit 21 of the second sub-backlight area 20, has public adjacent side 1; The sub-back light unit 31 of the 3rd sub-backlight area 30 is adjacent with the sub-back light unit 41 of the 4th sub-backlight area 40, has public adjacent side 2; Wherein the length direction of public adjacent side 1 and public adjacent side 2 is respectively the length direction of sub-back light unit.
Further, in backlight module described in the second embodiment, except the sub-back light unit 21 of the sub-backlight area 20 of sub-back light unit 11, second of the first sub-backlight area 10, the sub-back light unit 31 of the 3rd sub-backlight area 30 and the sub-back light unit 41 of the 4th sub-backlight area 40, the width of each sub-back light unit is equal, is a; And sub-back light unit 11 and the width sum of sub-back light unit 21 are a, sub-back light unit 31 is a with the width sum of sub-back light unit 41; Preferably, sub-back light unit 11, sub-back light unit 21, sub-back light unit 31 are respectively a/2 value with the width of sub-back light unit 41.
When adopting the 3D display backlight module of partitioned organization shown in above-mentioned Fig. 3, when each subregion of control 3D display backlight module is lighted, also the upper and lower mode to entering as shown in Figure 4 is adopted, also the combination zone namely formed the sub-backlight area 20 of the first sub-backlight area 10, second carries out upper and lower to entering scanning, carries out upper and lower to entering scanning to the combination zone that the 3rd sub-backlight area 30, the 4th sub-backlight area 40 are formed.
It will be understood by those skilled in the art that backlight module described in the utility model, also can adopt the upper and lower scan mode deviated from except adopting the upper and lower mode to entering to scan.
Identical with the first embodiment, can adopt 3D display backlight module, under the mode entered is scanned, when each subregion of 3D display backlight module is lighted, the sub-back light unit 11 being positioned at zone line is opened with sub-back light unit 21 simultaneously and is lighted, the sub-back light unit 31 being simultaneously positioned at zone line is opened with sub-back light unit 41 simultaneously and is lighted, and the width lighted and other subregions to open the width lighted consistent, the brightness of therefore lighting is also consistent with the brightness that other subregions are lighted, there will not be prior art due to the width of each sub-back light unit consistent, the twice that width is other subregions is lighted to making zone line, cause the problem that brightness is too high.
The partitioned organization of 3D display backlight module described in above-mentioned first embodiment and the second embodiment; be only the citing of the utility model principle; in concrete 3D display, the subregion of backlight module is not limited to only comprise these two kinds; those skilled in the art can make various distortion according to the utility model principle; as long as make the width sum of the adjacent sub-back light unit of adjacent backlight area be less than or equal to the width of other arbitrary sub-back light units, be all covered by within protection domain of the present utility model.
Adopt in the control method of above-mentioned 3D display backlight module, comprise the first sub-backlight area and the second sub-backlight area for backlight module, particularly, this control method comprises:
In the displaying time s of a two field picture, in described first sub-backlight area, each sub-back light unit is lighted successively;
Simultaneously in the displaying time s of a two field picture, in described second sub-backlight area, each sub-back light unit is lighted successively, and described first sub-back light unit and described first corresponding sub-back light unit are for light simultaneously.
Preferably, light about two sub-back light units that described public adjacent side is symmetrical in described first sub-backlight area and described second sub-backlight area simultaneously.
Adopt the control method of 3D display backlight module described in the utility model embodiment, backlight module employing is carried out scanning to the mode entered or deviate from up and down up and down and is lighted, in synchronization, the some bright area of backlight module is symmetrical about the public adjacent side of adjacent two backlight area.
Particularly, composition graphs 2, in above-mentioned control method, in described first sub-backlight area, from described first sub-back light unit, to the direction away from described first sub-back light unit, each sub-back light unit is lighted successively; In described second sub-backlight area, from described first corresponding sub-back light unit, to the direction away from described first corresponding sub-back light unit, each sub-back light unit is lighted successively, is formed as the upper and lower scan mode deviated from;
Or in above-mentioned control method, in described first sub-backlight area, from apart from the described first sub-back light unit in sub-back light unit edge farthest, to the direction near described first sub-back light unit, each sub-back light unit is lighted successively; In described second sub-backlight area, from apart from the described first sub-back light unit in corresponding sub-back light unit edge farthest, to the direction near described first corresponding sub-back light unit, each sub-back light unit is lighted successively, is formed as up and down to the scan mode entered.
In addition, described schedule time s is display panel one two field picture displaying time, completes once to the scanning of backlight module in the time of an also i.e. two field picture display.
Below in conjunction with the backlight module of partitioned organization shown in Fig. 2, adopt the upper and lower mode to entering to scan to backlight module, the control method that each subregion of backlight module is lighted is described in detail.
Adopt the 3D display backlight module of partitioned organization shown in Fig. 2, composition graphs 2 and above description, the number of the first sub-backlight area 10 neutron back light unit is identical with the number of the second sub-backlight area 20 neutron back light unit, also be namely respectively eight, and the sub-back light unit in the first sub-backlight area 10 and the sub-back light unit in described second sub-backlight area 20 are about described public adjacent side 1 symmetry.Adopt control method described in the utility model embodiment, two sub-back light units symmetrical in the first sub-backlight area 10 and the second sub-backlight area 20 are lighted simultaneously.
Also be, 3D described in the utility model embodiment is adopted to show the control method of module, in a two field picture displaying time s, in the first sub-backlight area 10, from sub-back light unit 12 (the second sub-back light unit) to sub-back light unit 11, each sub-back light unit is lighted successively, and sub-back light unit 12 is the sub-back light unit of the first sub-backlight area 10 middle distance 11 sub-back light unit farthest; In a two field picture displaying time s, in the second sub-backlight area 20, from sub-back light unit 22 (the second corresponding sub-back light unit) to sub-back light unit 21, each sub-back light unit is lighted successively, and sub-back light unit 22 is the sub-back light unit of the second sub-backlight area 20 middle distance 21 sub-back light unit farthest; And simultaneously, two sub-back light units symmetrical in the first sub-backlight area 10 and the second sub-backlight area 20 are lighted simultaneously.Such as, the sub-back light unit 12 of the first sub-backlight area 10 and the sub-back light unit 22 of the second sub-backlight area 20 are lighted simultaneously; The sub-back light unit 13 of the first sub-backlight area 10 and the sub-back light unit 23 of the second sub-backlight area are lighted simultaneously, the like, the sub-back light unit 11 of the first sub-backlight area 10 and the sub-back light unit 21 of the second sub-backlight area are lighted simultaneously.
Further, in above-mentioned control method, described first sub-backlight area 10 is identical with the lighting time t of two sub-back light units symmetrical in described second sub-backlight area 20, and wherein said lighting time t is:
S is the displaying time of a two field picture; N is the number of sub-back light unit included in described first sub-backlight area and described second sub-backlight area.
Fig. 4 adopts 3D described in the utility model embodiment to show the control method of module, the partitioned organization of backlight module and the corresponding relation figure of lighting time for representing.
Composition graphs 4, one two field picture displaying time s is divided into n+1 time cycle, and n is the number of sub-back light unit included in described first sub-backlight area and described second sub-backlight area, in the utility model embodiment, n=8, also namely form the time phase of T1 to T9.According to Fig. 4, first sub-backlight area 10 comprises first to the 8th sub-back light unit from top to bottom, second sub-back light unit 20 comprises first to the 8th sub-back light unit from bottom to up, shown in above Fig. 2, the sub-back light unit 11 of the 8th sub-back light unit corresponding diagram 2 of the first sub-backlight area 10, the sub-back light unit 21 of the 8th sub-back light unit corresponding diagram 2 of the second sub-backlight area 20, width sum equals the width of other sub-back light units.
Wherein, in first sub-backlight area 10, first sub-back light unit of first sub-back light unit and the second sub-backlight area 20 is lit within the time period of T1+T2, second sub-back light unit of the first sub-backlight area 10 and second sub-back light unit of the second sub-backlight area 20 are lit in section when T2+T3, rule is analogized according to this, and the 8th sub-back light unit of the first sub-backlight area 10 and the 8th sub-back light unit of the second sub-backlight area 20 are lit within the time period of T8+T9.
Therefore, 3D described in the utility model embodiment shows in the described control method of module, and the lighting time of two symmetrical sub-back light units is identical respectively, and lighting time t can adopt above-mentioned formula value to calculate.And further, a sub-back light unit is lighted after last adjacent sub-back light unit lights T time, and wherein T is less than t, and also namely adjacent two sub-back light units have overlapping lighting time.According to shown in Fig. 4, T=t/2.
Illustrate, when 3D display module described in the utility model is applied to the 3D display device that resolution is 3840 × 2160, refresh rate is 120Hz, the time value in above-mentioned each stage is T1=T2=T3=T4=T5=T6=T7=T8=s/ (n+1)=8.33/ (8+1)=0.92ms, wherein s=8.33ms is the two field picture display time used, and the lighting time of each sub-back light unit is 0.92 × 2=1.84ms.
Best, in order to the brightness of the zone line making the first sub-backlight area 10 and the second sub-backlight area 20 further reduces, the lighting time of two adjacent the 8th sub-back light units can also be made further to be less than the lighting time of other sub-back light units; Or adopt the mode of the luminous overlapping time of the sub-back light unit of shortening the 8th and the 7th adjacent sub-back light unit to realize; Or the mode adopting the driving voltage making two adjacent the 8th sub-back light units light to be less than the driving voltage that other sub-back light units are lighted in described first sub-backlight area and described second sub-backlight area realizes.Wherein preferentially, the driving voltage that two adjacent the 8th sub-back light units are lighted is identical.
Above-mentioned 3D shows in the described control method of module, mode about the lighting time of each sub-back light unit is only one and illustrates, specifically can be not limited to only adopt above-mentioned mode, as long as can this to when making display module be applied to 3D display device, picture does not produce flicker, and pure color picture is evenly as the criterion.
The another aspect of the utility model specific embodiment also provides a kind of 3D display device, and comprise display panel and above-mentioned 3D display backlight module, wherein said display panel comprises the viewing area corresponding with each backlight area of 3D display backlight module.
Those skilled in the art should be able to understand the concrete structure of the 3D display device adopting above-mentioned backlight module, are not described in detail at this.
The control method that the utility model is above-mentioned, two adjacent the first sub-backlight area and the second sub-backlight area is comprised for described backlight module, the concrete mode of described control method has been described in detail, it will be appreciated by those skilled in the art that, when backlight module comprises two or more backlight area, the mode of subtend scanning lights successively from the fringe region of backlight module to zone line, as long as the setting of the sub-back light unit of adjacent backlight area according to principle of the present utility model, and control method is also according to above-mentioned mode.Control method when this no longer comprises plural backlight area to backlight module is described in detail, and those skilled in the art should be able to learn according to above-mentioned description.
In addition, below be only applied to the backlight module described in the utility model embodiment and up and down the scan mode entered be described, according to principle of the present utility model, the utility model is not limited to only be applied to up and down to the scan mode entered, also can be applied to the scan mode deviated from up and down, the effect of the shinny degree of zone line produced when alleviating 3D display can be reached equally.
In addition, be understandable that, in backlight module, the arrangement mode of each sub-back light unit is except can being above arrangement up and down, also can arrange for left and right, and when for arranging up and down, the control method of display module is transversal scanning; When arranging for left and right, the light-emitting control method of display module is longitudinal scanning.
Above-described is preferred implementation of the present utility model; should be understood that the ordinary person for the art; can also make some improvements and modifications not departing under principle prerequisite described in the utility model, these improvements and modifications are also in protection domain of the present utility model.
Claims (5)
1. a 3D display backlight module, comprise at least one backlight area, described backlight area comprises the first sub-backlight area and the second sub-backlight area that are arranged in order, described first sub-backlight area and described second sub-backlight area comprise at least two sub-back light units respectively, the orientation of each described sub-back light unit is identical, the first corresponding sub-back light unit in the first sub-back light unit in described first sub-backlight area and described second sub-backlight area has public adjacent side, the bearing of trend of described public adjacent side is the length direction of described sub-back light unit, it is characterized in that, width and the width sum of described first corresponding sub-back light unit of described first sub-back light unit are less than or equal to the width of other arbitrary sub-back light units in described first sub-backlight area and described second sub-backlight area.
2. 3D display backlight module as claimed in claim 1, it is characterized in that, the number of described first sub-backlight area neutron back light unit is identical with the number of described second sub-backlight area neutron back light unit, and in described first sub-backlight area and described second sub-backlight area, each sub-back light unit except described first sub-back light unit and described first corresponding sub-back light unit all has the first width.
3. 3D display backlight module as claimed in claim 2, it is characterized in that, the width sum of described first sub-back light unit and described first corresponding sub-back light unit equals described first width.
4. the 3D display backlight module as described in any one of claims 1 to 3, is characterized in that, the width of described first sub-back light unit equals the width of described first corresponding sub-back light unit.
5. a 3D display device, comprises display panel, it is characterized in that, also comprises the 3D display backlight module as described in any one of Claims 1-4, wherein said display panel comprise with described backlight module each described in viewing area corresponding to backlight area.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420788003.1U CN204242565U (en) | 2014-12-12 | 2014-12-12 | 3d display backlight module and 3d display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420788003.1U CN204242565U (en) | 2014-12-12 | 2014-12-12 | 3d display backlight module and 3d display device |
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| CN204242565U true CN204242565U (en) | 2015-04-01 |
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| CN201420788003.1U Withdrawn - After Issue CN204242565U (en) | 2014-12-12 | 2014-12-12 | 3d display backlight module and 3d display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409052A (en) * | 2014-12-12 | 2015-03-11 | 京东方科技集团股份有限公司 | 3D display backlight module, control method thereof and 3D display |
| WO2019041846A1 (en) * | 2017-08-31 | 2019-03-07 | 京东方科技集团股份有限公司 | Backlight module and control method thereof and display device and driving method thereof |
| CN111429831A (en) * | 2020-04-30 | 2020-07-17 | Tcl华星光电技术有限公司 | Tiled display device |
| US11222568B2 (en) | 2020-04-30 | 2022-01-11 | Tcl China Star Optoelectronics Technology Co., Ltd. | Spliced display device |
-
2014
- 2014-12-12 CN CN201420788003.1U patent/CN204242565U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409052A (en) * | 2014-12-12 | 2015-03-11 | 京东方科技集团股份有限公司 | 3D display backlight module, control method thereof and 3D display |
| WO2019041846A1 (en) * | 2017-08-31 | 2019-03-07 | 京东方科技集团股份有限公司 | Backlight module and control method thereof and display device and driving method thereof |
| US11341926B2 (en) | 2017-08-31 | 2022-05-24 | Beijing Boe Optoelectronics Technology Co., Ltd. | Backlight module, control method therefor and display device, driving method therefor |
| CN111429831A (en) * | 2020-04-30 | 2020-07-17 | Tcl华星光电技术有限公司 | Tiled display device |
| CN111429831B (en) * | 2020-04-30 | 2021-11-02 | Tcl华星光电技术有限公司 | Tiled display device |
| WO2021217758A1 (en) * | 2020-04-30 | 2021-11-04 | Tcl华星光电技术有限公司 | Spliced display device |
| US11222568B2 (en) | 2020-04-30 | 2022-01-11 | Tcl China Star Optoelectronics Technology Co., Ltd. | Spliced display device |
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