CN105717697A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN105717697A CN105717697A CN201410729621.3A CN201410729621A CN105717697A CN 105717697 A CN105717697 A CN 105717697A CN 201410729621 A CN201410729621 A CN 201410729621A CN 105717697 A CN105717697 A CN 105717697A
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- light source
- arcuation
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- incidence surface
- red
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Abstract
The invention discloses a backlight module which comprises light guiding plate, a first light source assembly and a second light source assembly. The light guiding plate is provided with a central line. The first light source assembly is arranged at a first corner of the light guiding plate, and comprises a first read light source, a first green light source and a first blue light source. The second light source assembly is arranged at a second corner of the light guiding plate, and comprises a second red light source, a second green light source and a second blue light source. The first read light source, the first green light source and the first blue light source are respectively and sequentially arranged to be symmetrical to the second red light source, the second green light source and the second blue light source, relative to the central line. Therefore, red light, green light and blue light emitted by the red light sources, the green light sources and the blue light sources of the two light source assemblies respectively can be guided by the light guiding plate and mixed evenly.
Description
Technical field
The present invention relates to a kind of backlight module, particularly relate to a kind of backlight module reducing quantity of light source and improvement display image quality and be equiped with the display device of this backlight module.
Background technology
Owing to liquid crystal indicator has slimming, lightweight, low power consumption, radiationless pollution and can with advantages such as manufacture of semiconductor technical compatibilities, liquid crystal indicator has been widely used in electronic installation miscellaneous, for instance notebook computer, mobile phone, digital camera, personal digital assistant etc..Liquid crystal indicator is through backlight module provides light to display floater, to show picture.Backlight module is generally of light source, light guide plate, reflector plate and optical film combination.Light source is in order to provide light, and light guide plate is in order to by light directed toward display panel, and reflector plate is in order to by light line reflection, and to increase the light utilization efficiency of the light emission side of light guide plate, optical film combination is then in order to improve the optical characteristics of light.It is said that in general, prior art is to be spaced along the side of light guide plate by multiple light sources, its required quantity of light source is more so that the manufacturing cost of backlight module also can increase therewith.
Summary of the invention
The technical problem to be solved is: in order to make up the deficiencies in the prior art, it is provided that a kind of backlight module and display device, to solve the problems referred to above.
The backlight module of the present invention is by the following technical solutions:
Described backlight module includes light guide plate, the first combination of light sources and secondary light source combination.Described light guide plate has centrage.Described first combination of light sources is arranged at the first corner of described light guide plate, and described first combination of light sources includes the first red-light source, the first green-light source and the first blue light source.The combination of described secondary light source is arranged at the second corner of described light guide plate, and the combination of described secondary light source includes the second red-light source, the second green-light source and the second blue light source.Described first red-light source, described first green-light source, described first blue light source are sequentially symmetrical arranged with described second red-light source, described second green-light source, the described second relative described centrage line of blue light source respectively.
Described first red-light source, described first green-light source and described first blue light source are integrated on first substrate, and described second red-light source, described second green-light source are integrated on second substrate with described second blue light source.
Described first corner has the first arcuation incidence surface, described second corner has the second arcuation incidence surface, described first substrate has the first arcuation exiting surface, described second substrate has the second arcuation exiting surface, the contiguous described first arcuation incidence surface of described first arcuation exiting surface, and the contiguous described second arcuation incidence surface of described second arcuation exiting surface.
Described first corner has the first flat incidence surface, described second corner has the second flat incidence surface, described first substrate has the first flat exiting surface, described second substrate has the second flat exiting surface, the contiguous described first flat incidence surface of described first flat exiting surface, and the contiguous described second flat incidence surface of described second flat exiting surface.
Described first corner has the first arcuation incidence surface, described second corner has the second arcuation incidence surface, described first red-light source, described first green-light source and described first blue light source are arcuation arrangement along described first arcuation incidence surface, and described second red-light source, described second green-light source and described second blue light source are arcuation arrangement along described second arcuation incidence surface.
Described first corner has the first flat incidence surface, described second corner has the second flat incidence surface, described first red-light source, described first green-light source and described first blue light source are arranged in a linear along described first flat incidence surface, and described second red-light source, described second green-light source are arranged in a linear along described second flat incidence surface with described second blue light source.
The display device of the present invention is by the following technical solutions:
Described display device includes foregoing backlight module and display floater.Described display floater is arranged on described backlight module.
Described display floater is display panels.
Described display panels has blue phase liquid crystal.
Described display panels is a color-sequential method display panels.
Therefore, according to technique scheme, the backlight module of the present invention and display device at least have following advantages and beneficial effect: the present invention arranges two combination of light sources in two corners of light guide plate, make the light that each combination of light sources sends can enter light from the corner of light guide plate, the uniform diffusion profile thereby through the guiding of light guide plate.Thereby, the present invention just can effectively reduce quantity of light source, thus reducing manufacturing cost.Additionally, the red-light source of two combination of light sources, green-light source and blue light source respectively sequentially the centrage line of relative light guide plate be symmetrical arranged.Thereby, HONGGUANG, green glow and the blue light that the red-light source of two combination of light sources, green-light source and blue light source send respectively just can by the guiding of light guide plate Homogeneous phase mixing.When the blue-phase liquid crystal display panel of the backlight module collocation netrual colour optical filter of the present invention shows picture by field color-sequential method, it is possible to be effectively improved the display image quality of display device.
Accompanying drawing explanation
Fig. 1 is the schematic top plan view of the backlight module of first embodiment of the invention.
The generalized section of the display device of the backlight module that Fig. 2 is equipped with in Fig. 1.
Fig. 3 is the schematic top plan view of the backlight module of second embodiment of the invention.
Fig. 4 is the schematic top plan view of the backlight module of third embodiment of the invention.
Fig. 5 is the schematic top plan view of the backlight module of fourth embodiment of the invention.
Wherein, description of reference numerals is as follows:
1 display device 10,20,30,40 backlight module
12 display floater 100 light guide plates
102 first combination of light sources 104 secondary light source combinations
106 reflector plate 108 optical film combinations
120 upper substrate 122 infrabasal plates
124 blue phase liquid crystal 126 film crystal tube drive circuits
128 touch control induction circuit 1,000 first arcuation incidence surfaces
1002 second arcuation incidence surface 1,004 first flat incidence surfaces
1006 second flat incidence surface 1,020 first red-light sources
1022 first green-light source 1,024 first blue light sources
1026 first substrate 1,028 first arcuation exiting surfaces
1030 first flat exiting surface 1,040 second red-light sources
1042 second green-light source 1,044 second blue light sources
1046 second substrate 1,048 second arcuation exiting surfaces
1050 second flat exiting surface L centrages
C2 the second corner, C1 the first corner
Detailed description of the invention
Refer to the schematic top plan view that Fig. 1 and Fig. 2, Fig. 1 are the backlight modules 10 of first embodiment of the invention, the generalized section of the display device 1 of the backlight module 10 that Fig. 2 is equipped with in Fig. 1.As in figure 2 it is shown, display device 1 includes backlight module 10 and display floater 12, wherein display floater 12 is arranged on backlight module 10.In this example it is shown that device 1 can be liquid crystal indicator, and display floater 12 can be display panels, but is not limited.When display floater 12 is display panels, display panels can have the blue phase liquid crystal 124 between upper substrate 120 and infrabasal plate 122 and film crystal tube drive circuit 126.When having blue phase liquid crystal 124 in display panels, display panels can be a color-sequential method display panels.Field color-sequential method (FieldSequentialColor, FSC) be one do not need use colored filter (colorfilter) Display Technique, lack colored filter, the penetrance of display floater 12 can be increased, but rapid-action blue phase liquid crystal 124 of must arranging in pairs or groups, just will not because of liquid crystal reacted slowly, reduce time that backlight module 10 can light and increase the complexity of type of drive.Additionally, display floater 12 also can form touch control induction circuit 128 on upper substrate 120, to realize touch controllable function.
As shown in Figures 1 and 2, backlight module 10 includes light guide plate the 100, first combination of light sources 102, secondary light source combination 104, reflector plate 106 and optical film combination 108.In practical application, light guide plate 100 can be formed diffusion point (dotpattern) or other interference structure, after making the light that the first combination of light sources 102 and secondary light source combination 104 send enter light guide plates 100, can uniformly be spread and be sent towards the direction of display floater 12.Part veiling glare can be reflected by reflector plate 106, to increase the light extraction efficiency of entirety.Additionally, being arranged on the optical film combination 108 above light guide plate 100 is the optical characteristics improving light, wherein the blooming piece included by optical film combination 108 can be prismatic lens, diffusion sheet etc., depending on practical application.
As it is shown in figure 1, light guide plate 100 has centre line L, the first combination of light sources 102 is arranged at the first corner C1 of light guide plate 100, and secondary light source combination 104 is arranged at the second corner C2 of light guide plate 100.In the present embodiment, first combination of light sources 102 includes the first red-light source the 1020, first green-light source 1022 and the first blue light source 1024, and secondary light source combination 104 includes the second red-light source the 1040, second green-light source 1042 and the second blue light source 1044.First red-light source the 1020, first green-light source the 1022, first blue light source 1024 is sequentially symmetrical arranged with the centre line L line of the second relative light guide plate 100 of red-light source the 1040, second green-light source the 1042, second blue light source 1044 respectively.Thereby, HONGGUANG that second red-light source the 1040, second green-light source the 1042, second blue light source 1044 of first red-light source the 1020, first green-light source the 1022, first blue light source 1024 of the first combination of light sources 102 sends HONGGUANG, green glow, blue light and secondary light source combination 104 sends, green glow, blue light just can by the guiding of light guide plate 100 Homogeneous phase mixing.When backlight module 10 arrange in pairs or groups the blue-phase liquid crystal display panel 12 of netrual colour optical filter show picture by field color-sequential method time, it is possible to be effectively improved the display image quality of display device 1.In addition, the present invention arranges the first combination of light sources 102 and secondary light source combination 104 at the first corner C1 and the second corner C2 of light guide plate 100, make the light that the first combination of light sources 102 and secondary light source combination 104 send can enter light from the corner of light guide plate 100, the uniform diffusion profile thereby through the guiding of light guide plate 100.Thereby, the present invention just can effectively reduce quantity of light source, thus reducing manufacturing cost.
It should be noted that, the display panels that the backlight module 10 of the present invention can also be arranged in pairs or groups general uses, and is not limited with blue-phase liquid crystal display panel of arranging in pairs or groups.Additionally, above-mentioned light source can be light emitting diode (LightEmittingDiode, LED), but it is not limited.
In the present embodiment, the first corner C1 of light guide plate 100 has the first arcuation incidence surface 1000, and the second corner C2 of light guide plate 100 has the second arcuation incidence surface 1002.Therefore, first red-light source the 1020, first green-light source 1022 of the first combination of light sources 102 and the first blue light source 1024 are along the arrangement in arcuation of the first arcuation incidence surface 1000, and second red-light source the 1040, second green-light source 1042 of secondary light source combination 104 and the second blue light source 1044 arrange along the second arcuation incidence surface 1002 in arcuation.
Refer to the schematic top plan view that Fig. 3, Fig. 3 are the backlight modules 20 of second embodiment of the invention.Backlight module 20 is differing primarily in aforesaid backlight module 10, in backlight module 20, first corner C1 of light guide plate 100 has the first flat incidence surface 1004, and the second corner C2 of light guide plate 100 has the second flat incidence surface 1006, as shown in Figure 3.Therefore, first red-light source the 1020, first green-light source 1022 of the first combination of light sources 102 and the first blue light source 1024 are arranged in a linear along the first flat incidence surface 1004, and second red-light source the 1040, second green-light source 1042 of secondary light source combination 104 and the second blue light source 1044 are arranged in a linear along the second flat incidence surface 1006.
Refer to the schematic top plan view that Fig. 4, Fig. 4 are the backlight modules 30 of third embodiment of the invention.Backlight module 30 is differing primarily in aforesaid backlight module 10, in backlight module 30, first red-light source the 1020, first green-light source 1022 of the first combination of light sources 102 and the first blue light source 1024 are integrated on first substrate 1026, and second red-light source the 1040, second green-light source 1042 of secondary light source combination 104 and the second blue light source 1044 are integrated on second substrate 1046, as shown in Figure 4.In the present embodiment, owing to the first corner C1 of light guide plate 100 has the first arcuation incidence surface 1000, and the second corner C2 of light guide plate 100 has the second arcuation incidence surface 1002, therefore, first substrate 1026 has the first arcuation exiting surface 1028, and second substrate 1046 has the second arcuation exiting surface 1048.Thereby, the first arcuation incidence surface 1000 of the first corner C1 that the first arcuation exiting surface 1028 of first substrate 1026 can be close to light guide plate 100 is arranged, and the second arcuation incidence surface 1002 of the second arcuation exiting surface 1048 of second substrate 1046 the second corner C2 that can be close to light guide plate 100 is arranged.
Refer to the schematic top plan view that Fig. 5, Fig. 5 are the backlight modules 40 of fourth embodiment of the invention.Backlight module 40 is differing primarily in aforesaid backlight module 30, in backlight module 40, first corner C1 of light guide plate 100 has the first flat incidence surface 1004, and the second corner C2 of light guide plate 100 has the second flat incidence surface 1006, therefore, first substrate 1026 has the first flat exiting surface 1030, and second substrate 1046 has the second flat exiting surface 1050.Thereby, the first flat incidence surface 1004 of the first corner C1 that the first flat exiting surface 1030 of first substrate 1026 can be close to light guide plate 100 is arranged, and the second flat incidence surface 1006 of the second flat exiting surface 1050 of second substrate 1046 the second corner C2 that can be close to light guide plate 100 is arranged.
Therefore, according to technique scheme, the backlight module of the present invention and display device at least have following advantages and beneficial effect: the present invention arranges two combination of light sources in two corners of light guide plate, make the light that each combination of light sources sends can enter light from the corner of light guide plate, the uniform diffusion profile thereby through the guiding of light guide plate.Thereby, the present invention just can effectively reduce quantity of light source, thus reducing manufacturing cost.Additionally, the red-light source of two combination of light sources, green-light source and blue light source respectively sequentially the centrage line of relative light guide plate be symmetrical arranged.Thereby, HONGGUANG, green glow and the blue light that the red-light source of two combination of light sources, green-light source and blue light source send respectively just can by the guiding of light guide plate Homogeneous phase mixing.When the blue-phase liquid crystal display panel of the backlight module collocation netrual colour optical filter of the present invention shows picture by field color-sequential method, it is possible to be effectively improved the display image quality of display device.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. a backlight module, it is characterised in that described backlight module includes:
Light guide plate, has centrage；
First combination of light sources, is arranged at the first corner of described light guide plate, and described first combination of light sources includes the first red-light source, the first green-light source and the first blue light source；And
Secondary light source combines, and is arranged at the second corner of described light guide plate, and the combination of described secondary light source includes the second red-light source, the second green-light source and the second blue light source；
Wherein, described first red-light source, described first green-light source, described first blue light source are sequentially symmetrical arranged with described second red-light source, described second green-light source, the described second relative described centrage line of blue light source respectively.
2. backlight module as claimed in claim 1, it is characterized in that, described first red-light source, described first green-light source and described first blue light source are integrated on first substrate, and described second red-light source, described second green-light source are integrated on second substrate with described second blue light source.
3. backlight module as claimed in claim 2, it is characterized in that, described first corner has the first arcuation incidence surface, described second corner has the second arcuation incidence surface, described first substrate has the first arcuation exiting surface, described second substrate has the second arcuation exiting surface, the contiguous described first arcuation incidence surface of described first arcuation exiting surface, and the contiguous described second arcuation incidence surface of described second arcuation exiting surface.
4. backlight module as claimed in claim 2, it is characterized in that, described first corner has the first flat incidence surface, described second corner has the second flat incidence surface, described first substrate has the first flat exiting surface, described second substrate has the second flat exiting surface, the contiguous described first flat incidence surface of described first flat exiting surface, and the contiguous described second flat incidence surface of described second flat exiting surface.
5. backlight module as claimed in claim 1, it is characterized in that, described first corner has the first arcuation incidence surface, described second corner has the second arcuation incidence surface, described first red-light source, described first green-light source and described first blue light source are arcuation arrangement along described first arcuation incidence surface, and described second red-light source, described second green-light source and described second blue light source are arcuation arrangement along described second arcuation incidence surface.
6. backlight module as claimed in claim 1, it is characterized in that, described first corner has the first flat incidence surface, described second corner has the second flat incidence surface, described first red-light source, described first green-light source and described first blue light source are arranged in a linear along described first flat incidence surface, and described second red-light source, described second green-light source are arranged in a linear along described second flat incidence surface with described second blue light source.
7. a display device, it is characterised in that described display device includes:
Backlight module as claimed in claim 1；And
Display floater, is arranged on described backlight module.
8. display device as claimed in claim 7, it is characterised in that described display floater is display panels.
9. display device as claimed in claim 8, it is characterised in that in described display panels, there is blue phase liquid crystal.
10. display device as claimed in claim 8, it is characterised in that described display panels is a color-sequential method display panels.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410729621.3A CN105717697A (en) | 2014-12-04 | 2014-12-04 | Backlight module and display device |
| TW104110476A TW201621427A (en) | 2014-12-04 | 2015-03-31 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410729621.3A CN105717697A (en) | 2014-12-04 | 2014-12-04 | Backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105717697A true CN105717697A (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410729621.3A Pending CN105717697A (en) | 2014-12-04 | 2014-12-04 | Backlight module and display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105717697A (en) |
| TW (1) | TW201621427A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023065069A1 (en) * | 2021-10-18 | 2023-04-27 | 瑞仪(广州)光电子器件有限公司 | Backlight module and display device |
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| JP2002133933A (en) * | 2000-10-26 | 2002-05-10 | Rohm Co Ltd | Luminaire and liquid-crystal display device comprising it |
| CN1437056A (en) * | 2002-02-05 | 2003-08-20 | 三星电子株式会社 | Lighting device and display equipment utilizing the same lighting device |
| KR20050066943A (en) * | 2003-12-26 | 2005-06-30 | 후지쯔 디스플레이 테크놀로지스 코포레이션 | Backlight and liquid crystal display device |
| CN1828389A (en) * | 2005-02-28 | 2006-09-06 | 夏普株式会社 | Surface illuminator and liquid crystal display having the same |
| CN201439906U (en) * | 2009-06-18 | 2010-04-21 | 康佳集团股份有限公司 | Edge-lighting backlight module and liquid crystal display (LCD) |
| CN101825246A (en) * | 2009-03-03 | 2010-09-08 | 康佳集团股份有限公司 | Side entering type backlight module |
| CN103047585A (en) * | 2012-12-20 | 2013-04-17 | 康佳集团股份有限公司 | Lateral incidence type backlight module and liquid crystal television |
| CN203431600U (en) * | 2013-06-27 | 2014-02-12 | 欧姆龙株式会社 | Face-shaped light source device, display unit and electronic device with face-shaped light source device |
-
2014
- 2014-12-04 CN CN201410729621.3A patent/CN105717697A/en active Pending
-
2015
- 2015-03-31 TW TW104110476A patent/TW201621427A/en unknown
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002133933A (en) * | 2000-10-26 | 2002-05-10 | Rohm Co Ltd | Luminaire and liquid-crystal display device comprising it |
| CN1437056A (en) * | 2002-02-05 | 2003-08-20 | 三星电子株式会社 | Lighting device and display equipment utilizing the same lighting device |
| KR20050066943A (en) * | 2003-12-26 | 2005-06-30 | 후지쯔 디스플레이 테크놀로지스 코포레이션 | Backlight and liquid crystal display device |
| CN1828389A (en) * | 2005-02-28 | 2006-09-06 | 夏普株式会社 | Surface illuminator and liquid crystal display having the same |
| CN101825246A (en) * | 2009-03-03 | 2010-09-08 | 康佳集团股份有限公司 | Side entering type backlight module |
| CN201439906U (en) * | 2009-06-18 | 2010-04-21 | 康佳集团股份有限公司 | Edge-lighting backlight module and liquid crystal display (LCD) |
| CN103047585A (en) * | 2012-12-20 | 2013-04-17 | 康佳集团股份有限公司 | Lateral incidence type backlight module and liquid crystal television |
| CN203431600U (en) * | 2013-06-27 | 2014-02-12 | 欧姆龙株式会社 | Face-shaped light source device, display unit and electronic device with face-shaped light source device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201621427A (en) | 2016-06-16 |
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Application publication date: 20160629 |