CN101520149B - Hollow side light type backlight module with light-emitting array and display - Google Patents
Hollow side light type backlight module with light-emitting array and display Download PDFInfo
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- CN101520149B CN101520149B CN200910134339XA CN200910134339A CN101520149B CN 101520149 B CN101520149 B CN 101520149B CN 200910134339X A CN200910134339X A CN 200910134339XA CN 200910134339 A CN200910134339 A CN 200910134339A CN 101520149 B CN101520149 B CN 101520149B
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Abstract
The invention discloses a hollow side light type backlight module with a light-emitting array and a display. The hollow side light type backlight module mainly uses a hollow reflection structure to replace a light guide plate structure, is matched with a side light type light source to form a light-emitting unit, and is spliced with a plurality of light-emitting units to form the light-emitting array. The reflection structure of each light-emitting unit is provided with a horizontal plane and a reflection surface connected with the horizontal plane, wherein an included angle exists between theextension surface of the reflection surface and the extension surface of the horizontal plane, and the horizontal plane is arranged to be adjacent to the light source. A diffusion panel of the hollow side light type backlight module is arranged above the reflection surface and the horizontal plane, wherein the diffusion panel, the light source, the horizontal plane and the reflection surface defi ne at least one air cavity chamber.
Description
Technical field
The invention relates to a kind of backlight module and display, particularly relevant for a kind of hollow type side light type back light module and display with light emitting array.
Background technology
Backlight module is one of key part and component of display panels.Because liquid crystal itself can't be luminous, thereby need to provide light source with backlight module, can show normal and the well-balanced image of brightness by making display panels.Generally speaking, backlight module can be divided into straight-down negative (Direct-type) and two kinds of designs of side-light type (Edge-type), and the backlight that wherein backlight module is commonly used for example has cold-cathode fluorescence lamp and light emitting diode (Light Emitting Diode; LED) etc.
Evolution along with LCD Technology, the part control technology (Local Dimming) that flickers has been played the part of considerable role in liquid crystal display market, the surcharge that it can increase liquid crystal display has significantly become the emphasis development project of each liquid crystal display manufacturers.So-called " part flicker control technology " is that the backlight with liquid crystal display is divided into a plurality of different blocks, again according to showing that image carries out respectively briliancy control to each block.In the broadest sense, the part control technology that flickers roughly can be distinguished 3 large classes: the parts of 0 dimension (0D), 1 dimension (1D) and 2 dimensions (2D) control technology that flickers, wherein tie up the flicker best results of control technology of (2D) parts with 2.Known technology is to use the direct-light type LED backlight module to implement 2 dimension (2D) parts control technology that flickers, and it has the advantage of high dynamic contrast and power saving.Yet the thickness of direct type backlight module is too large, can't satisfy the requirement of product slimming.
Another known technology is the framework that a plurality of Wedge shape light conduction boards is spliced into a side light type back light module.To implement flicker control technology and thickness of part less although the framework of this side light type back light module also can be used to, but its number of assembling steps is too complicated, and its assembling variation can cause between each block to some extent difference, so that the actual making difficult that scrabbles up the backlight module of large scale or special size.
Summary of the invention
Because the thickness of known direct-light type LED backlight module is too large; And the number of assembling steps of the side light type back light module of known tool Spliced type light guide plate is too complicated, therefore, the present invention provides a kind of hollow type side light type back light module and display with light emitting array, by implementing the part control technology that flickers, to satisfy the lightening demand of product; And simplify the possibility (Feasibility) that number of assembling steps provides modularization to scrabble up large scale and special size.
According to embodiments of the invention, the hollow type side light type back light module with light emitting array of the present invention includes a light emitting array and a diffuser plate at least.Light emitting array is comprised of a plurality of luminescence unit, and wherein each luminescence unit has reflection configuration and light source.Reflection configuration has a surface level and the reflecting surface that is connected of surface level therewith, wherein have an angle between the extended surface of reflecting surface and surface level, and light source is to be adjacent to surface level.Diffuser plate is the top that is arranged at reflecting surface and surface level, and wherein diffuser plate, light source, surface level and reflecting surface define an air chamber.In another embodiment, this light source is at least one LED source, and this angle is essence between 5 degree between 45 degree, and the cosine value that the area of reflecting surface multiply by angle is that essence is between 1 to 10 to the ratio of the area of surface level.
According to another embodiment of the present invention, the hollow type side light type back light module with light emitting array of the present invention more includes a backboard, and each luminescence unit includes a supporter and a reflector plate.Supporter is to be positioned on the backboard and to have a inclined-plane towards aforesaid light source and diffuser plate, and reflector plate is to be positioned on the inclined-plane of supporter, and form the reflecting surface of aforesaid reflection configuration, wherein the surface of the backboard between aforesaid light source and supporter is the surface level of aforesaid reflection configuration.
According to another embodiment of the present invention, the hollow type side light type back light module with light emitting array of the present invention more includes a backboard, and each luminescence unit includes a supporter.Supporter is to be positioned on the backboard and to have a inclined-plane towards aforesaid light source and diffuser plate, wherein supporter is made by high reflecting material, the inclined-plane of supporter is the reflecting surface of aforesaid reflection configuration, and the surface of the backboard between aforesaid light source and supporter is the surface level of aforesaid reflection configuration.
According to another embodiment of the present invention, each luminescence unit includes a backboard.Backboard has a horizontal part and an inclined plane part, and wherein horizontal part forms the surface level of aforesaid reflection configuration, and inclined plane part forms the inclined-plane of aforesaid reflection configuration.In another embodiment, this inclined plane part more is pasted with a reflector plate.
According to another embodiment of the present invention, reflection configuration is to be made of one piece by reflector plate, and reflector plate is to be arranged on the surface and inclined plane part of light incident sides, backboard.And the side of reflection configuration (light incident sides) has opening, and light source is arranged in the opening.
According to another embodiment of the present invention, the hollow type side light type back light module with light emitting array of the present invention includes a light emitting array and a diffuser plate.Light emitting array is comprised of a plurality of luminescence unit, and each luminescence unit has one first reflection configuration, one second reflection configuration, one first light source and a secondary light source.One first reflecting surface that the first reflection configuration has one first surface level and is connected with the first surface level have one first angle between the extended surface of the first reflecting surface and the first surface level, and the first light source is to be adjacent to the first surface level.One second reflecting surface that the second reflection configuration has one second surface level and is connected with the second surface level, has one second angle between the extended surface of the second reflecting surface and the second surface level, the second reflecting surface is to be connected to the first reflecting surface, and secondary light source is to be adjacent to the second surface level.Diffuser plate is the top that is arranged at the second reflecting surface, the second surface level, the first reflecting surface and the first surface level, wherein diffuser plate, the first light source, the first surface level and the first reflecting surface define one first air chamber, and diffuser plate, secondary light source, the second surface level and the second reflecting surface then define one second air chamber.In another embodiment, the first light source and secondary light source are LED source, the first angle and the second angle are essence between 5 degree between 45 degree, and the cosine value that the area of the first reflecting surface multiply by the first angle is that essence is between 1 to 10 to the ratio of the area of the first surface level; The cosine value that the area of the second reflecting surface multiply by the second angle is that essence is between 1 to 10 to the ratio of the area of the second surface level.In another embodiment, the first reflection configuration and the second reflection configuration are mirrors each other.
According to another embodiment of the present invention, the hollow type side light type back light module with light emitting array of the present invention more includes a backboard, and each luminescence unit comprises: one first supporter, one first reflector plate, one second supporter and one second reflector plate.The first supporter is to be positioned on the backboard and to have the first inclined-plane towards the first light source and diffuser plate, the first reflector plate is to be positioned on the first inclined-plane of the first supporter, and form the first reflecting surface of the first reflection configuration, and the surface of the backboard between the first light source and the first supporter is the first surface level of the first reflection configuration.The second supporter is to be positioned on the backboard and to have the second inclined-plane towards secondary light source and diffuser plate, the second reflector plate is to be positioned on the second inclined-plane of the second supporter, and form the second reflecting surface of the second reflection configuration, and the surface of the backboard between secondary light source and the second supporter is the second surface level of the second reflection configuration.
According to another embodiment of the present invention, the hollow type side light type back light module with light emitting array of the present invention more includes a backboard, and each luminescence unit comprises: one first supporter and one second supporter.The first supporter is to be positioned on the backboard and to have the first inclined-plane towards the first light source and diffuser plate, wherein the first supporter is made by the first high reflecting material, the first inclined-plane of the first supporter is the first reflecting surface of the first reflection configuration, and the surface of the backboard between the first light source and the first supporter is the first surface level of the first reflection configuration.The second supporter is to be positioned on the backboard and to have the second inclined-plane towards secondary light source and diffuser plate, wherein the second supporter is made by the second high reflecting material, the second inclined-plane of the second supporter is the second reflecting surface of the second reflection configuration, and the surface of the backboard between secondary light source and the second supporter is the second surface level of the second reflection configuration.
According to another embodiment of the present invention, each luminescence unit includes a backboard.This backboard has one first horizontal part, one first inclined plane part, one second horizontal part and one second inclined plane part, wherein the first horizontal part forms the first surface level of the first reflection configuration, the first inclined plane part forms the first inclined-plane of the first reflection configuration, the second horizontal part forms the second surface level of the second reflection configuration, and the second inclined plane part forms the second inclined-plane of the second reflection configuration.
According to another embodiment of the present invention, the first reflection configuration is to be made of one piece by the first reflector plate, and the first reflector plate is to be arranged on the surface and the first inclined plane part of the first light incident sides, the first backboard, and the side of the first reflection configuration (the first light incident sides) has opening, and the first light source is arranged in the opening; The second reflection configuration is to be made of one piece by the second reflector plate, and the second reflector plate is to be arranged on the surface and the second inclined plane part of the second light incident sides, the second backboard, and the side of the second reflection configuration (the second light incident sides) has opening, and secondary light source is arranged in the opening.
According to another embodiment of the present invention, display of the present invention includes a display panel and the above-mentioned hollow type side light type back light module with light emitting array.Display panel is arranged on the top of this hollow type side light type back light module.
Description of drawings
For above and other purpose of the present invention, feature, advantage and embodiment can be become apparent, appended accompanying drawing is described in detail as follows:
Figure 1A is the diagrammatic cross-section that illustrates the hollow type side light type back light module with light emitting array of one embodiment of the invention.
Figure 1B is the schematic top plan view that illustrates the light emitting array of one embodiment of the invention.
Fig. 2 A is the diagrammatic cross-section that illustrates the reflection configuration of one embodiment of the invention.
Fig. 2 B is the diagrammatic cross-section that illustrates the integrated reflection configuration of one embodiment of the invention.
Fig. 2 C is the diagrammatic cross-section that illustrates the reflection configuration of another embodiment of the present invention.
Fig. 2 D is the diagrammatic cross-section that illustrates the reflection configuration of another embodiment of the present invention.
Fig. 2 E is the diagrammatic cross-section that illustrates the integrated reflection configuration of another embodiment of the present invention.
Fig. 3 A is the diagrammatic cross-section that illustrates the hollow type side light type back light module with light emitting array of another embodiment of the present invention.
Fig. 3 B is the schematic top plan view that illustrates the light emitting array of another embodiment of the present invention.
Fig. 4 A is the diagrammatic cross-section that illustrates the reflection configuration of another embodiment of the present invention.
Fig. 4 B is the diagrammatic cross-section that illustrates the integrated reflection configuration of another embodiment of the present invention.
Fig. 4 C is the diagrammatic cross-section that illustrates the reflection configuration of another embodiment of the present invention.
Fig. 4 D is the diagrammatic cross-section that illustrates the reflection configuration of another embodiment of the present invention.
Fig. 4 E is the diagrammatic cross-section that illustrates the integrated reflection configuration of another embodiment of the present invention.
Fig. 5 is the diagrammatic cross-section that illustrates the display of one embodiment of the invention.
Drawing reference numeral
100 light emitting arrays, 110 luminescence units
112 light sources, 200 reflection configurations
210 surface levels, 220 reflectings surface
230 light incident sides, 240 supporters
Element is pasted on 241 inclined-planes 242
244 reflector plates, 250 supporters
Element is pasted on 251 inclined-planes 262
264 reflector plates, 300 diffuser plates
310 backboards, 312 surfaces
320 backboards, 322 horizontal parts
324 inclined plane parts, 326 surfaces
330 display panel 380a the first backboard
380b the second backboard 400 light emitting arrays
410 luminescence unit 412a surface
420b the second reflection configuration 422a the first light source
422b secondary light source 424a the first surface level
426a the first reflecting surface 426b the second reflecting surface
430a the first light incident sides 430b the second light incident sides
440a the first supporter 440b the second supporter
441b inclined-plane, 441a inclined-plane
442a first pastes element 442b second and pastes element
444a the first reflector plate 444b the second reflector plate
450a the first supporter 450b the second supporter
451a the first inclined-plane 451b the second inclined-plane
452b surface, 452a surface
462a first pastes element 462b second and pastes element
464a the first reflector plate 464b the second reflector plate
472a the first horizontal part 472b the second horizontal part
474a the first inclined plane part 474b the second inclined plane part
476b surface, 476a surface
A2 the first included angle A 1 angle
D1 distance A 3 second angles
Embodiment
Backlight module framework of the present invention mainly is to replace the light guide plate framework with the hollow type reflection configuration, and collocation side-light type light source becomes a luminescence unit, splice again a plurality of luminescence units and become a light emitting array, by simplifying significantly number of assembling steps, and reach part flicker control and lightening purpose.
Please refer to Figure 1A and Figure 1B, Figure 1A is the diagrammatic cross-section that illustrates the hollow type side light type back light module with light emitting array of one embodiment of the invention, and Figure 1B is the schematic top plan view that illustrates the light emitting array of one embodiment of the invention.The hollow type side light type back light module of the present embodiment includes light emitting array 100 and diffuser plate 300.Light emitting array 100 is comprised of a plurality of luminescence unit 110, and wherein each luminescence unit 110 has reflection configuration 200 and at least one light source 112.The reflecting surface 220 that reflection configuration 200 has surface level 210 and is connected with surface level 210, in this embodiment, reflecting surface 220 is the plane with surface level 210, has included angle A 1 between the extended surface of reflecting surface 220 and surface level 210, wherein included angle A 1 is that essence is between 5 degree are spent to 45, and reflecting surface 220 is projected in the ratio of the area of the area of extended surface of surface level 210 and surface level 210, and namely the area of reflecting surface 220 cosine value that multiply by included angle A 1 is that essence is between 1 to 10 to the ratio of the area of surface level 210.
Diffuser plate 300 is the tops that are arranged at reflecting surface 220 and surface level 210, that is diffuser plate 300 is to be arranged on the light direction of light emitting array 100, and wherein diffuser plate 300, light source 112, surface level 210 and reflecting surface 220 define an air chamber (indicating).Light source 112 is to be adjacent to surface level 210, and light source 112 place light incident sides 230 for example can be: the ostiolate side of reflection configuration 200; Or the non-ostiolate supporting element that belongs to reflection configuration 200, reflex to again diffuser plate 300 in the air chamber as long as can allow the light of light source 112 enter.Light source 112 for example can be: light emitting diode (LED) light source, and the light source in each luminescence unit 110 112 can be connected with circuit board (not shown) or flexible PCB (not shown) in addition and forms light-emitting diode light bar (LED light bar).Because near the light the LED luminous position is strong especially, thus need to reduce its reflection light quantity near part reflection configuration 200 designs of led light source, to avoid producing the clear zone; Away from the part reflection configuration 200 of led light source then need design to produce uniform light field with the profile gradual change.In addition, the reflecting surface 220 of the present embodiment is not limited to a plane, for example, also can be according to different led light source light types, the shape adjustments of reflecting surface 220 is become a curved design.
Shown in Figure 1A, backlight module of the present invention is the splicing framework of more than one hollow type side-lighting type light-emitting unit 110.A flat light emission 110 provides one to show section post light requirement source, and decides number and the spacing of led light source according to brightness demand and the size that shows subregion, to reach the high evenness that respectively shows subregion.Therefore, it is relatively easy that the present embodiment more directly designs large-sized backlight module; And in theory, the sliceable backlight module that goes out arbitrary dimension of framework provided by the present invention.
The production method of the reflection configuration of various embodiments of the present invention below is described.
Embodiment 1:
Please refer to Figure 1A and Fig. 2 A, Fig. 2 A is the diagrammatic cross-section that illustrates the reflection configuration of one embodiment of the invention.The hollow type side light type back light module with light emitting array of the present embodiment includes a backboard 310, and the reflection configuration 200 (shown in Figure 1A) of each luminescence unit 110 is formed by supporter 240 and reflector plate 244, wherein reflector plate 244 is made by high reflecting material, and supporter 240 can be made by for example plastic cement or metal material.Supporter 240 is to be positioned on the backboard 310, and has the inclined-plane 241 towards light source 112 and diffuser plate 300.Reflector plate 244 is to be glued on the inclined-plane 241 of supporter 240 by pasting element 242, and forms the reflecting surface 220 of reflection configuration 200.240 of light source 112 and supporters have a distance D 1 apart, and the surface 312 of backboard 310 therebetween then becomes the surface level 210 of reflection configuration 200.Reflector plate 244 may extend to the surface 312 of the backboard 310 of 240 of light source 112 and supporters.Perhaps, the surface 312 Pastings reflector plate different from the reflectivity of reflector plate 244 of backboard 310.Though above-described embodiment is reflector plate 244 to be pasted on the inclined-plane 241 of supporter 240 by pasting element 242, so the invention is not restricted to this, for example, can or evaporate the reflection horizon with high reflectance in the direct coating in the surface of supporter 240, to form the reflecting surface 220 of reflection configuration 200.
In addition, please refer to Fig. 2 B, it illustrates the diagrammatic cross-section of the integrated reflection configuration of another embodiment of the present invention.Reflection configuration 200 is to be made of one piece by reflector plate 244, and reflector plate 244 is to be arranged on the surface 312 and supporter 240 of light incident sides 230, backboard 310.And the side of reflection configuration 200 (light incident sides 230) has opening (indicate), and light source 112 is arranged in the opening, reflexes to diffuser plate 300 by allowing the light of light source 112 enter in the air chamber and by reflector plate 244.
Embodiment 2:
Please refer to Figure 1A and Fig. 2 C, Fig. 2 C is the diagrammatic cross-section that illustrates the reflection configuration of another embodiment of the present invention.The reflection configuration 200 (shown in Figure 1A) of each luminescence unit 110 of the present embodiment is formed by supporter 250, wherein supporter 250 is to be positioned on the backboard 310 and to have towards the inclined-plane 251 of light source 112 and diffuser plate 300, and 250 of light source 112 and supporters have a distance D 1 apart.As different from Example 1, the supporter 250 of the present embodiment is made by a high reflecting material, therefore need not paste reflector plate on the inclined-plane 251 of supporter 250, inclined-plane 251 that namely can supporter 250 is as the reflecting surface 220 of reflection configuration 200, and with the surface 312 of the backboard 310 of 250 of light source 112 and the supporters surface level 210 as reflection configuration 200.The present embodiment for example can adopt, and the mode of direct injection forms supporter 250.
Embodiment 3:
Please refer to Figure 1A and Fig. 2 D, Fig. 2 D is the diagrammatic cross-section that illustrates the reflection configuration of another embodiment of the present invention.The reflection configuration 200 (shown in Figure 1A) of each luminescence unit 110 of the present embodiment is formed by backboard 320, its dorsulum 320 has a horizontal part 322 and an inclined plane part 324, wherein 324 of light source 112 and inclined plane parts have a distance D 1 apart, the surface 326 of horizontal part 322 therebetween is the surface levels 210 that form reflection configuration 200, and inclined plane part 324 is the reflectings surface 220 that form reflection configuration 200.The present embodiment is pasted reflector plate 264 (high reflecting material) on the surface of the inclined plane part 324 of backboard 320 by pasting element 262, forms the reflecting surface 220 of reflection configuration 200, and wherein reflector plate 264 may extend to the surface 326 of backboard 320.In addition, the also Pasting reflector plate different from the reflectivity of reflector plate 264 of the surface 326 of backboard 320.So the invention is not restricted to this, for example, also can directly make backboard 320 with high reflecting material, perhaps in the surface-coated of the inclined plane part 324 of backboard 320 or the reflection horizon that evaporation has high reflectance, to form the reflecting surface 220 of reflection configuration 200.
In addition, please refer to Fig. 2 E, it illustrates the diagrammatic cross-section of the integrated reflection configuration of another embodiment of the present invention.Reflection configuration 200 is to be made of one piece by reflector plate 264, and reflector plate 264 is to be arranged on the surface 326 and inclined plane part 324 of light incident sides 230, backboard 320.And the side of reflection configuration 200 (light incident sides 230) has opening (indicate), and light source 112 is arranged in the opening, reflexes to diffuser plate 300 again and by reflector plate 244 by allowing the light of light source 112 enter in the air chamber.Reflector plate 264 is to be arranged on the surface 326 and inclined plane part 324 of backboard 320.
In sum, reflection configuration 200 of the present invention has multiple production method: shown in Fig. 2 A, fixedly supporter 240 is attached at reflector plate 244 on the inclined-plane 241 of supporter 240 on backboard 310 again; Shown in Fig. 2 B, the difference of itself and Fig. 2 A is that mainly reflection configuration 200 is to be made of one piece by reflector plate 244; Shown in Fig. 2 C, can use high reflecting material directly to penetrate the supporter 250 of tool reflection function; Shown in Fig. 2 D, can utilize backboard 320 to turn up inclined plane part 324 with supporting reflex sheet 264, if the effectively angle of fixation reflex sheet 264 and position, perhaps, shown in Fig. 2 E, the difference of itself and Fig. 2 A is that mainly reflection configuration 200 can be made of one piece by reflector plate 264.Above-mentioned supporter 240,250 and the design of backboard 320 can be simplified to a plurality of strips unit, to form the luminescence unit row (OK) of light emitting array 100 as shown in Figure 1B, and utilize the outer position of visible area mutually to link, simplify significantly package program, and reduce the assembling variation, thereby can flexibly splice the backlight module of large scale and special size.
The configuration of light source of the present invention is not limited to single-sided illumination to reflection configuration, other for example both sides or all around light inlet to the mode in the reflection configuration also be applicable to the present invention, as long as the collocation suitable pattern reflection configuration.
Please refer to Fig. 3 A and Fig. 3 B, Fig. 3 A is the diagrammatic cross-section that illustrates the hollow type side light type back light module with light emitting array of another embodiment of the present invention, and Fig. 3 B is the schematic top plan view that illustrates the light emitting array of another embodiment of the present invention.The hollow type side light type back light module of the present embodiment includes light emitting array 400 and diffuser plate 300.In the present embodiment, light emitting array 400 is comprised of a plurality of luminescence unit 410, and each luminescence unit 410 is to symmetrical reflection configuration with light source both sides light inlet.Each luminescence unit 410 has the first reflection configuration 420a, the second reflection configuration 420b, at least one first light source 422a and at least one secondary light source 422a, wherein the first reflection configuration 420a and the second reflection configuration 420b are mirrors each other, and can be for example integrated structure.The first light source 422a and secondary light source 422b for example can be: light emitting diode (LED) light source.
The first reflecting surface 426a that the first reflection configuration 420a has the first surface level 424a and is connected with the first surface level 424a, has the first included angle A 2 between the extended surface of the first reflecting surface 426a and the first surface level 424a, and the first light source 422a is adjacent to the first surface level 424a, and the first light source 422a place the first light incident sides 430a for example can be: the ostiolate side of the first reflection configuration 420a; Or the non-ostiolate supporting element that belongs to the first reflection configuration 420a.The second reflecting surface 426b that the second reflection configuration 420b has the second surface level 424b and is connected with the second surface level 424b, has the second included angle A 3 between the extended surface of the second reflecting surface 426b and the second surface level 424b, the second reflecting surface 426b is connected to the first reflecting surface 426a, and secondary light source 422b is adjacent to the second surface level 424b.The first included angle A 2 is essence between 5 degree between 45 degree, and the cosine value that the first reflecting surface 426a multiply by the first included angle A 2 is that essence is between 1 to 10 to the ratio of the first surface level 424a.The second included angle A 3 is essence between 5 degree between 45 degree, and the cosine value that the second reflecting surface 426b multiply by the second included angle A 3 is that essence is between 1 to 10 to the ratio of the second surface level 424b.Diffuser plate 300 is the tops that are arranged at the second reflecting surface 426b, the second surface level 424b, the first reflecting surface 426a and the first surface level 424a, and wherein diffuser plate 300, the first light source 422a, the first surface level 424a and the first reflecting surface 426a define one first air chamber (not indicating); Diffuser plate 300, secondary light source 422b, the second surface level 424b and the second reflecting surface 426b then define one second air chamber (not indicating).
The reflection configuration of the present embodiment is comprised of the first reflection configuration 420a and the second reflection configuration 420b, and the first reflection configuration 420a and the second reflection configuration 420b are mirrors each other.The production method of the first reflection configuration 420a and the second reflection configuration 420b below is described.
Embodiment 4:
Please refer to Fig. 3 A and Fig. 4 A, Fig. 4 A is the diagrammatic cross-section that illustrates the reflection configuration of another embodiment of the present invention.The present embodiment is to adopt the mode of the making reflection configuration 200 shown in Fig. 2 A to make respectively the first reflection configuration 420a and the second reflection configuration 420b.The hollow type side light type back light module with light emitting array of the present embodiment includes a backboard 310, and the first reflection configuration 420a is formed by the first supporter 440a and the first reflector plate 444a; The second reflection configuration 420b is formed by the second supporter 440b and the second reflector plate 444b.The first supporter 440a is positioned on the backboard 310, and has the inclined-plane 441a towards the first light source 422a and diffuser plate 300; The second supporter 440b is positioned on the backboard 310, and has the inclined-plane 441b towards secondary light source 422b and diffuser plate 300.The first reflector plate 444a pastes element 442a by first to be glued on the inclined-plane 441a of the first supporter 440a; The second reflector plate 444b pastes element 442b by second to be glued on the inclined-plane 441b of the second supporter 440b.Between the first light source 422a and the first supporter 440a one distance D 1 is arranged apart, the surperficial 412a of backboard 310 therebetween then becomes the first surface level 424a of the first reflection configuration 420a; Between secondary light source 432 and the second supporter 440b one distance D 1 is arranged apart, the surperficial 412b of backboard 310 therebetween then becomes the second surface level 424b of the second reflection configuration 420b.
In addition, please refer to Fig. 4 B, it illustrates the diagrammatic cross-section of the integrated reflection configuration of another embodiment of the present invention.The first reflection configuration 420a is made of one piece by the first reflector plate 444a, and the first reflector plate 444a is arranged on the surperficial 412a and the first supporter 440a of the first light incident sides 430a, backboard 310.The second reflection configuration 420b is made of one piece by the second reflector plate 444b, and the second reflector plate 444b is arranged on the surperficial 412b and the second supporter 440b of the second light incident sides 430b, backboard 310.And the side of the first reflection configuration 420a (the first light incident sides 430a) has opening (not indicating), the first light source 422a is arranged in the opening, reflexes to diffuser plate 300 by allowing the light of the first light source 422a enter in the air chamber and by the first reflector plate 444a; The side of the second reflection configuration 420b (the second light incident sides 430b) has opening (not indicating), secondary light source 422b is arranged in the opening, reflexes to diffuser plate 300 by allowing the light of secondary light source 422b enter in the air chamber and by the second reflector plate 444b.
Embodiment 5:
Please refer to Fig. 3 A and Fig. 4 C, Fig. 4 C is the diagrammatic cross-section that illustrates the reflection configuration of another embodiment of the present invention.The present embodiment is to adopt the mode of the making reflection configuration 200 shown in Fig. 2 C to make respectively the first reflection configuration 420a and the second reflection configuration 420b.The first reflection configuration 420a of the present embodiment is formed by the first supporter 450a, wherein the first supporter 450a is positioned on the backboard 310 and has the first inclined-plane 451a towards the first light source 422a and diffuser plate 300, between the first light source 422a and the first supporter 450a one distance D 1 is arranged apart.The second reflection configuration 420b of the present embodiment is formed by the second supporter 450b, wherein the second supporter 450b is positioned on the backboard 310 and has the second inclined-plane 451b towards secondary light source 422b and diffuser plate 300, between secondary light source 422b and the second supporter 450b one distance D 1 is arranged apart.As different from Example 4, the first supporter 450a and the second supporter 450b of the present embodiment are made by high reflecting material, therefore need not paste reflector plate on the first inclined-plane 451a and the second inclined-plane 451b, namely can the first inclined-plane 451a and the second inclined-plane 451b as the first reflecting surface 426a of the first reflection configuration 420a and the second reflecting surface 426b of the second reflection configuration 420b, and with the surperficial 452a of the backboard 310 between the first light source 422a and the first supporter 450a the first surface level 412a as the first reflection configuration 420a; And the surperficial 452b of the backboard 310 between secondary light source 422b and the second supporter 450b is as the second surface level 412b of the second reflection configuration 420b.The present embodiment for example can adopt that the mode of direct injection forms the first supporter 450a and the second supporter 450b, and the first supporter 450a and the second supporter 450b are preferably one-body molded.
Embodiment 6:
Please refer to Fig. 3 A and Fig. 4 D, Fig. 4 D is the diagrammatic cross-section that illustrates the reflection configuration of another embodiment of the present invention.The present embodiment is to adopt the mode of the making reflection configuration 200 shown in Fig. 2 D to make respectively the first reflection configuration 420a and the second reflection configuration 420b.The first reflection configuration 420a of the present embodiment and the second reflection configuration 420b are formed by the first backboard 380a and the second backboard 380b respectively.The first backboard 380a has the first horizontal part 472a and the first inclined plane part 474a, wherein between the first light source 422a and the first inclined plane part 474a one distance D 1 is arranged apart, the surperficial 476a of the first horizontal part 472a therebetween is the first surface level 412a that forms the first reflection configuration 420a, and the first inclined plane part 474a is the first reflecting surface 426a that forms the first reflection configuration 420a.The second backboard 380b has the second horizontal part 472b and the second inclined plane part 474b, wherein between secondary light source 422b and the second inclined plane part 474b one distance D 1 is arranged apart, the surperficial 476b of the second horizontal part 472b therebetween is the second surface level 412b that forms the second reflection configuration 420b, and the second inclined plane part 474b is the second reflecting surface 426b that forms the second reflection configuration 420b.And the first backboard 380a and the second backboard 380b are preferably one-body molded.
The present embodiment is pasted element 462a by first and is pasted the first reflector plate 464a on the surface of the first inclined plane part 424a of the first backboard 380a, form the first reflecting surface 426a of the first reflection configuration 420a, wherein the first reflector plate 426a may extend to the surperficial 476a of the first backboard 380a; And paste element 462b by second and paste the second reflector plate 464b on the surface of the second inclined plane part 424b of the second backboard 380b, form the second reflecting surface 426a of the second reflection configuration 420b, wherein the second reflector plate 426b may extend to the surperficial 476b of the second backboard 380b.
In addition, please refer to Fig. 4 E, it illustrates the diagrammatic cross-section of the integrated reflection configuration of another embodiment of the present invention.The first reflection configuration 420a is made of one piece by the first reflector plate 464a, and the first reflector plate 464a is arranged on the surperficial 476a and the first inclined plane part 424a of the first light incident sides 430a, the first backboard 380a.The second reflection configuration 420b is made of one piece by the second reflector plate 464b, and the second reflector plate 464b is arranged on the surperficial 476b and the second inclined plane part 424b of the second light incident sides 430b, the second backboard 380b.The first reflector plate 464a and the second reflector plate 464b are preferably one-body molded.And the side of the first reflection configuration 420a (the first light incident sides 430a) has opening (not indicating), the first light source 422a is arranged in the opening, reflexes to diffuser plate 300 again and by the first reflector plate 464a by allowing the light of the first light source 422a enter in the air chamber; The side of the second reflection configuration 420b (the second light incident sides 430b) has opening (not indicating), secondary light source 422b is arranged in the opening, reflexes to diffuser plate 300 again and by the second reflector plate 464b by allowing the light of secondary light source 422b enter in the air chamber.
Because the technician in the technical field that the present invention belongs to should by above about making the explanation of reflection configuration 200, learn the mode of making the first reflection configuration 420a and the second reflection configuration 420b, therefore do not give unnecessary details in addition at this.
Please refer to Fig. 5, it illustrates the diagrammatic cross-section of the display of one embodiment of the invention.The display of the present embodiment comprises the above-mentioned hollow type side light type back light module with light emitting array (take the structure shown in Fig. 2 B as representative) at least; And a display panel 330, wherein display panel 330 is arranged on the top of diffuser plate 300.
By the embodiment of the invention described above as can be known, use advantage of the present invention and be: with hollow type reflector plate framework collocation side-light type light source, thereby can save the weight of light guide plate, satisfy the lightening demand of product; Can effectively implement the part control that flickers; Can carry out modularization, with simplified design and number of assembling steps and convenient for maintaining, and flexibly splice the backlight module of large scale and special size.
Although the present invention discloses as above with embodiment; so it is not to limit the present invention, any those of ordinary skill in the art, without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention defines and is as the criterion when looking the claim scope.
Claims (22)
1. the hollow type side light type back light module with light emitting array is characterized in that, described backlight module comprises:
One light emitting array, formed by a plurality of luminescence unit, wherein each described these luminescence unit has a reflection configuration and at least one light source, the reflecting surface that described reflection configuration has a surface level and is connected with described surface level, have an angle between the extended surface of described reflecting surface and described surface level, described light source is to be adjacent to described surface level; Described light source is at least one LED source; Described light source is luminous towards described reflecting surface; And
One diffuser plate is arranged at the top of described reflecting surface and described surface level, and wherein said diffuser plate, described light source, described surface level and described reflecting surface define an air chamber.
2. the hollow type side light type back light module with light emitting array as claimed in claim 1 is characterized in that, described backlight module more comprises a backboard, and each described these luminescence unit comprises:
One supporter is positioned on the described backboard and has a inclined-plane towards described light source and described diffuser plate; And
One reflector plate is pasted on the described inclined-plane of described supporter, and forms the described reflecting surface of described reflection configuration;
The surface of the described backboard between wherein said light source and described supporter is the described surface level of described reflection configuration.
3. the hollow type side light type back light module with light emitting array as claimed in claim 1 is characterized in that, described backlight module more comprises a backboard, and each described these luminescence unit comprises:
One supporter, be positioned on the described backboard and have a inclined-plane towards described light source and described diffuser plate, wherein said supporter is made by a high reflecting material, the described inclined-plane of described supporter is the described reflecting surface of described reflection configuration, and the surface of the described backboard between described light source and described supporter is the described surface level of described reflection configuration.
4. the hollow type side light type back light module with light emitting array as claimed in claim 1 is characterized in that, wherein each described these luminescence unit comprises:
One backboard has a horizontal part and an inclined plane part, and wherein said horizontal part forms the described surface level of described reflection configuration, and described inclined plane part forms the described reflecting surface of described reflection configuration.
5. the hollow type side light type back light module with light emitting array as claimed in claim 4 is characterized in that, described backlight module more comprises a reflector plate, and it is pasted on described inclined plane part.
6. the hollow type side light type back light module with light emitting array as claimed in claim 1 is characterized in that, described angle is that essence is between 5 degree are spent to 45.
7. the hollow type side light type back light module with light emitting array as claimed in claim 1 is characterized in that, the cosine value that the area of described reflecting surface multiply by described angle is that essence is between 1 to 10 to the ratio of the area of described surface level.
8. the hollow type side light type back light module with light emitting array as claimed in claim 1, it is characterized in that, described reflection configuration is to be made of one piece by a reflector plate, and a side of described reflection configuration has an opening, and described light source is arranged in the described opening.
9. the hollow type side light type back light module with light emitting array as claimed in claim 8, it is characterized in that, described backlight module more comprises a backboard and a supporter, described supporter is positioned on the described backboard and has towards an inclined-plane of described light source and described diffuser plate, and described reflection configuration is to be positioned on the described inclined-plane and described backboard of described supporter.
10. the hollow type side light type back light module with light emitting array as claimed in claim 8 is characterized in that, described backlight module more comprises a backboard, and described backboard has a horizontal part and an inclined plane part, and described reflection configuration is to be positioned on the described backboard.
11. the hollow type side light type back light module with light emitting array is characterized in that, described backlight module comprises:
One light emitting array is comprised of a plurality of luminescence unit, and wherein each described these luminescence unit has one first reflection configuration, one second reflection configuration, at least one the first light source and at least one secondary light source; Described the first light source and described secondary light source are LED source; Wherein
One first reflecting surface that described the first reflection configuration has one first surface level and is connected with described the first surface level, have one first angle between the extended surface of described the first reflecting surface and described the first surface level, described the first light source is to be adjacent to described the first surface level; Described the first light source is luminous towards described the first reflecting surface;
One second reflecting surface that described the second reflection configuration has one second surface level and is connected with described the second surface level, has one second angle between the extended surface of described the second reflecting surface and described the second surface level, described the second reflecting surface is to be connected to described the first reflecting surface, and described secondary light source is to be adjacent to described the second surface level; Described secondary light source is luminous towards described the second reflecting surface; And
One diffuser plate, be arranged at the top of described the second reflecting surface, described the second surface level, described the first reflecting surface and described the first surface level, wherein said diffuser plate, described the first light source, described the first surface level and described the first reflecting surface define one first air chamber, and described diffuser plate, described secondary light source, described the second surface level and described the second reflecting surface then define one second air chamber.
12. the hollow type side light type back light module with light emitting array as claimed in claim 11 is characterized in that, described the first reflection configuration and described the second reflection configuration are the structures that is formed in one.
13. the hollow type side light type back light module with light emitting array as claimed in claim 11 is characterized in that, described the first reflection configuration and described the second reflection configuration are mirrors each other.
14. the hollow type side light type back light module with light emitting array as claimed in claim 11 is characterized in that described backlight module more comprises a backboard, and each described these luminescence unit comprises:
One first supporter is positioned on the described backboard and has one first inclined-plane towards described the first light source and described diffuser plate;
One first reflector plate, be pasted on described first inclined-plane of described the first supporter, and forming described first reflecting surface of described the first reflection configuration, the surface of the described backboard between wherein said the first light source and described the first supporter is described first surface level of described the first reflection configuration;
One second supporter is positioned on the described backboard and has one second inclined-plane towards described secondary light source and described diffuser plate; And
One second reflector plate, be pasted on described second inclined-plane of described the second supporter, and forming described second reflecting surface of described the second reflection configuration, the surface of the described backboard between wherein said secondary light source and described the second supporter is described second surface level of described the second reflection configuration.
15. the hollow type side light type back light module with light emitting array as claimed in claim 11 is characterized in that described backlight module more comprises a backboard, and each described these luminescence unit comprises:
One first supporter, be positioned on the described backboard and have one first inclined-plane towards described the first light source and described diffuser plate, wherein said the first supporter is made by one first high reflecting material, described first inclined-plane of described the first supporter is described first reflecting surface of described the first reflection configuration, and the surface of the described backboard between described the first light source and described the first supporter is described first surface level of described the first reflection configuration; And
One second supporter, be positioned on the described backboard and have one second inclined-plane towards described secondary light source and described diffuser plate, wherein said the second supporter is made by one second high reflecting material, described second inclined-plane of described the second supporter is described second reflecting surface of described the second reflection configuration, and the surface of the described backboard between described secondary light source and described the second supporter is described second surface level of described the second reflection configuration.
16. the hollow type side light type back light module with light emitting array as claimed in claim 11 is characterized in that, wherein each described these luminescence unit comprises:
One backboard, have one first horizontal part, one first inclined plane part, one second horizontal part and one second inclined plane part, wherein said the first horizontal part forms described first surface level of described the first reflection configuration, described the first inclined plane part forms described first inclined-plane of described the first reflection configuration, described the second horizontal part forms described second surface level of described the second reflection configuration, and described the second inclined plane part forms described second inclined-plane of described the second reflection configuration.
17. the hollow type side light type back light module with light emitting array as claimed in claim 11 is characterized in that, described the first angle is that essence is between 5 degree are spent to 45.
18. the hollow type side light type back light module with light emitting array as claimed in claim 11 is characterized in that, described the second angle is that essence is between 5 degree are spent to 45.
19. the hollow type side light type back light module with light emitting array as claimed in claim 11, it is characterized in that, the cosine value that the area of described the first reflecting surface multiply by described the first angle is that essence is between 1 to 10 to the ratio of the area of described the first surface level.
20. the hollow type side light type back light module with light emitting array as claimed in claim 11, it is characterized in that, the cosine value that the area of described the second reflecting surface multiply by described the second angle is that essence is between 1 to 10 to the ratio of the area of described the second surface level.
21. the hollow type side light type back light module with light emitting array as claimed in claim 11, it is characterized in that, wherein said the first reflection configuration is to be made of one piece by one first reflector plate, described the second reflection configuration is to be made of one piece by one second reflector plate, and a side of described the first reflection configuration has one first opening, one side of described the second reflection configuration has one second opening, described the first light source is arranged in described the first opening, and described secondary light source is arranged in described the second opening.
22. a display is characterized in that, described display comprises:
Such as claim 1 or 6 described hollow type side light type back light modules with light emitting array; And
One display panel is arranged on described top with hollow type side light type back light module of light emitting array.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910134339XA CN101520149B (en) | 2009-04-14 | 2009-04-14 | Hollow side light type backlight module with light-emitting array and display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910134339XA CN101520149B (en) | 2009-04-14 | 2009-04-14 | Hollow side light type backlight module with light-emitting array and display |
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| CN101520149A CN101520149A (en) | 2009-09-02 |
| CN101520149B true CN101520149B (en) | 2013-04-10 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5969735B2 (en) * | 2010-08-18 | 2016-08-17 | エルジー イノテック カンパニー リミテッド | Backlight unit and display device using the same |
| CN102081187A (en) * | 2010-11-30 | 2011-06-01 | 深圳市华星光电技术有限公司 | Spliced type light guide plate structure and backlight module |
| CN102011989A (en) * | 2011-01-13 | 2011-04-13 | 上海向隆电子科技有限公司 | Backlight module and liquid crystal display device |
| WO2013127247A1 (en) * | 2012-02-28 | 2013-09-06 | 天地融科技股份有限公司 | Electronic device |
| WO2013127250A1 (en) * | 2012-02-28 | 2013-09-06 | 天地融科技股份有限公司 | Electronic device |
| CN103218955B (en) * | 2012-02-28 | 2015-10-28 | 天地融科技股份有限公司 | A kind of electronic equipment |
| CN102620211B (en) * | 2012-04-05 | 2013-09-18 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
| CN103727456B (en) * | 2012-10-12 | 2016-11-16 | 赛尔富电子有限公司 | A kind of lighting |
| KR20160098921A (en) * | 2015-02-11 | 2016-08-19 | 엘지전자 주식회사 | Backlight unit and display apparatus comprising the same |
| KR102565959B1 (en) * | 2016-04-29 | 2023-08-14 | 엘지이노텍 주식회사 | Lighting module and lighting apparatus |
| CN113985656B (en) * | 2021-10-27 | 2023-12-26 | 合肥京东方光电科技有限公司 | Backlight source, backlight module and display device |
| DE102022202183A1 (en) | 2022-03-03 | 2023-09-07 | Robert Bosch Gesellschaft mit beschränkter Haftung | Backlight unit for display system, display system, method for operating a display system and control unit |
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