CN102155681A - Light source circuit module with light reflection structure, backlight module and display - Google Patents
Light source circuit module with light reflection structure, backlight module and display Download PDFInfo
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- CN102155681A CN102155681A CN 201110026756 CN201110026756A CN102155681A CN 102155681 A CN102155681 A CN 102155681A CN 201110026756 CN201110026756 CN 201110026756 CN 201110026756 A CN201110026756 A CN 201110026756A CN 102155681 A CN102155681 A CN 102155681A
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- 229910000765 intermetallic Inorganic materials 0.000 claims description 3
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- 239000002184 metal Substances 0.000 claims description 3
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Abstract
The invention discloses a light source circuit module with a light reflection structure, a backlight module with the light source circuit module and a display. The light source circuit module comprises a circuit board, a first reflecting layer and a second reflecting layer. The first reflecting layer is formed on one surface of the circuit board and has a first reflectivity. The second reflecting layer is formed on the first reflecting layer to partially cover the first reflecting layer and has a second reflectivity, and the second reflectivity is greater than the first reflectivity. The covering area ratio of the second reflecting layer to the first reflecting layer is changed to achieve the effect of adjusting the reflectivity of the reflecting structure formed by the first reflecting layer and the second reflecting layer, so that the light uniformity provided by the light source circuit module is improved, and the problem that moire is generated due to the fact that light provided by a light source is not uniform in the prior art is solved.
Description
Technical field
The present invention refers to a kind of circuit of light sources module, backlight module and display with light reflection structure especially about a kind of circuit of light sources module and backlight module and display with this circuit of light sources module.
Background technology
Along with LCD (Liquid Crystal Display, LCD) manufacturing technology fast development, it possesses advantages such as frivolous, power saving and radiationless line is arranged, make LCD be applied to the various electronic installations that the demonstration demand is arranged in large quantities, for example personal digital aid (PDA) (Personal Digital Assistant, PDA), notebook computer, digital camera, the mechanical, electrical brain screen of digital camera shadow and LCD TV or the like.Because the display panels in the liquid crystal indicator is the display floater of non-self-luminosity, need could produce the function of display frame by the light that backlight module provided.
Along with light emitting diode (the LED luminous power improves day by day for Light-Emitting Diode, the LED) lifting of luminescence technology, therefore at present existing many backlight modules with LED as light source.In less display screen, use the LED of lesser amt, enough brightness can be provided; But in bigger display screen, LCD TV for example, it must use the LED of a greater number, and the beginning can provide enough backlight to whole display floater.With the LCD TV is example, and direct type backlight module mainly comprises a circuit board, an a plurality of led light source and diffuser plate (diffusion plate) that is uniformly distributed on this circuit board.After the light of this a plurality of led light sources emission enters this diffuser plate, after diffusion, mixed light, penetrate this diffuser plate, to provide Liquid Crystal Module required evenly backlight.
Yet at present LCD TV continues to design towards reduction body thickness, and except the thickness of Liquid Crystal Module is restricted, the thickness of backlight module also is restricted.The thickness of reduction backlight module stands in the breach is that the thickness of diffuser plate and LED are to the distance between this diffuser plate.Though the reduced down in thickness of diffuser plate can influence the mixed light effect, but LED is bigger to the shortening influence of the distance between diffuser plate, cause the light intensity that enters diffuser plate to distribute quite inhomogeneous, it is limited to make that diffuser plate improves the effect of distribution of light, modal is exactly the phenomenon that LCD TV produces moire (mura), makes that the display quality of LCD TV is not good.
At this problem, though the backlight module of coating reflecting material on circuit board is arranged at present, also can reflect light so as to making the place that does not have light source, enter the light intensity problem pockety of diffuser plate with improvement.Though this mode can be improved the phenomenon of moire, but since circuit board everywhere reflectivity fix, and arrive circuit board light intensity everywhere along with and its increase and weaken apart from the distance between the light source, cause light intensity that circuit board reflects everywhere also along with and its increase and weaken apart from the distance between the light source, so apart from light source heal the light bulk strength that circuit board reflected far away still more a little less than, make overall light distribute and still be the phenomenon of concentrating distribution, the phenomenon of moire still exists, and it is limited to improve effect.Therefore, having really needs to propose a kind of luminous framework, under the condition of being reduced at backlight module thickness, still can provide the light source of enough uniformitys, addresses the above problem.
Summary of the invention
One of purpose of the present invention is to provide a kind of circuit of light sources module, utilizes the reflection multilayer layer to form light reflection structure, and it utilizes the area change of the reflection block of high reflectance, to improve the uniformity of the light that this circuit of light sources module produces.
Circuit of light sources module of the present invention comprises a circuit board, one first reflecting layer and one second reflecting layer.This circuit board comprises a plurality of electrical connections zone, and each is electrically connected the zone can be electrically fixing for a light emitting diode.This first reflecting layer is formed on the surface of this circuit board, and this first reflecting layer has one first reflectivity.This second reflecting layer is formed on this first reflecting layer partly to hide this first reflecting layer, this second reflecting layer has one second reflectivity, this second reflectivity is greater than this first reflectivity, this second reflecting layer comprises a plurality of reflection blocks, be distributed on this first reflecting layer, the area of this reflection block is along with increasing and increase with its nearest distance that is electrically connected between the zone.
Whereby, these a plurality of zone its areas of reflection block far away more that are electrically connected of distance are big more, the reflectible light intensity of this reflection block is strong more, so can be in order to these a plurality of zones far away more, zone that are electrically connected of complementary range, the problem of distribution of light deficiency, and then make this circuit of light sources module whole can provide than the more uniform light source of light source module that only on circuit board, forms the reflecting layer of individual reflection rate in the prior art.
Another object of the present invention is to provide a kind of circuit of light sources module, utilize the reflection multilayer layer to form light reflection structure, it utilizes the area change in the hollow out zone of high reflectance, to improve the uniformity of the light that this circuit of light sources module produces.
Circuit of light sources module of the present invention comprises a circuit board, one first reflecting layer and one second reflecting layer.This circuit board comprises a plurality of electrical connections zone, and each is electrically connected the zone can be electrically fixing for a light emitting diode.This first reflecting layer is formed on the surface of this circuit board, and this first reflecting layer has one first reflectivity.This second reflecting layer is formed on this first reflecting layer partly to hide this first reflecting layer, this second reflecting layer has one second reflectivity, this second reflectivity is greater than this first reflectivity, this second reflecting layer comprises a plurality of hollow outs zone, be distributed on this first reflecting layer, the area in this hollow out zone is along with increasing and reduce with its nearest distance that is electrically connected between the zone.
Whereby, more little from these a plurality of zone its areas of hollow out zone far away more that are electrically connected, this reflectible light intensity in second reflecting layer is strong more, so also can be in order to these a plurality of zones far away more, zone that are electrically connected of complementary range, the problem of distribution of light deficiency, and then make this circuit of light sources module whole can provide than the more uniform light source of light source module that only on circuit board, forms the reflecting layer of individual reflection rate in the prior art.
Another object of the present invention is to provide a kind of backlight module, adopt circuit of light sources module of the present invention, to provide more uniform more backlight than backlight module of the prior art.
Backlight module of the present invention comprises a circuit of light sources module of the present invention and a diffuser plate.This diffuser plate is arranged on the circuit board of this circuit of light sources module.Because this circuit of light sources module is provided by the uniformity of the light that provides, as described above, therefore the light that enters this diffuser plate penetrates this diffuser plate and can present more uniform more backlightly than backlight module of the prior art after through this diffuser plate diffusion, mixed light, avoids the generation of moire.
Another object of the present invention is to provide a kind of display, adopt backlight module of the present invention, propose the more uniform image demonstration of brightness to provide than display of the prior art.
Backlight module of the present invention comprises a backlight module of the present invention and a display floater.This display floater is arranged on the diffuser plate of this backlight module.Because this backlight module can provide more uniform more backlight than backlight module of the prior art, as described above, so this display floater can use this uniformly backlight to demonstrate the high-quality image that brightness is more even, color is more saturated.
Compared to aforementioned techniques, circuit of light sources module of the present invention utilizes the reflection multilayer layer to form light reflection structure, by changing the masked area ratio of this second reflecting layer to this first reflecting layer, effect with the reflectivity that reaches the catoptric arrangement that adjustment forms by this first reflecting layer and this second reflecting layer, so that these a plurality of zone regional reflectible light intensities far away more that are electrically connected of distance are strong more, overcoming the problem of distribution of light deficiency, and then make this circuit of light sources module whole can provide than the more uniform distribution of light of light source module that only on circuit board, forms the reflecting layer of individual reflection rate in the prior art.In brief, circuit of light sources module of the present invention utilizes light reflection structure that reflectivity can establish change with as parameter that improves backlight uniformity or design freedom, so can increase the design flexibility of backing structure.This light that provides promptly is provided backlight module of the present invention, through diffuser plate diffusion, mixed light effect, and then provides more uniform more backlight than backlight module of the prior art, effectively suppresses the moire phenomenon; Further, display of the present invention promptly utilizes this backlight module to show so that the high-quality image that brightness is more even, color is more saturated to be provided.
Can be further understood by following detailed Description Of The Invention and appended accompanying drawing about the advantages and spirit of the present invention.
Description of drawings
Fig. 1 is the vertical view according to a circuit of light sources module of one first preferred embodiment of the present invention;
Fig. 2 be among Fig. 1 the circuit of light sources module along the profile of face line X-X;
Fig. 3 is the vertical view according to a circuit of light sources module of one second preferred embodiment of the present invention;
Fig. 4 be among Fig. 3 the circuit of light sources module along the profile of face line Y-Y;
Fig. 5 is the generalized section according to a backlight module of one the 3rd preferred embodiment of the present invention;
Fig. 6 is the part sectioned view according to a display of one the 4th preferred embodiment of the present invention.
Wherein, Reference numeral
1,3 circuit of light sources modules, 2 light emitting diodes
5 backlight modules, 7 displays
12,32 circuit boards, 14,34 first reflecting layer
16,36 second reflecting layer, 52 diffuser plates
72 display floaters 122,322 are electrically connected the zone
124,324 surfaces, 162 reflection blocks
522 light tight sites, 362 hollow outs zone
1222,3222 electrode pad D distances
The specific embodiment
Please join Fig. 1 and Fig. 2, Fig. 1 is the vertical view according to a circuit of light sources module 1 of one first preferred embodiment of the present invention, Fig. 2 be among Fig. 1 circuit of light sources module 1 along the profile of face line X-X.This circuit of light sources module 1 comprises a circuit board 12, one first reflecting layer 14 and one second reflecting layer 16.Circuit board 12 comprises a plurality of electrical connections zone 122 (with its scopes of box indicating), and each is electrically connected zone 122 can comprise two electrode pad 1222, electrically connects and fix a light emitting diode 2 on it.First reflecting layer 14 is formed on the surface 124 of circuit board 12 and has one first reflectivity R1.Second reflecting layer 16 is formed on first reflecting layer 14 partly to hide first reflecting layer 14 and to have one second reflectivity R2, and this second reflectivity R2 is greater than this first reflectivity R1.Second reflecting layer 16 comprises a plurality of reflection blocks 162, be distributed on first reflecting layer 14, the area of reflection block 162 is along with increasing and increase with its nearest distance D that is electrically connected between the zone 122, wherein knows figure for convenient, and reflection block 162 adds that hachure represents in Fig. 2.In addition, in the present embodiment, afore-mentioned distance D may be defined as the centre of form of reflection block 162 to the distance between the centre of form in nearest electrical connection zone 122; But the present invention is not as limit.
Generally speaking, there is different reflectivity in each zone because of the situation difference that reflection block 162 distributes on the circuit board 12, this reflectivity is by 162 common contributions of reflection block in first reflecting layer 14 and second reflecting layer 16, for example the operation of the reflectivity in a certain zone definition can be in this zone, the area ratio P1 that expose in first reflecting layer 14 multiply by area ratio P2 that the reflection block 162 in this first reflectivity R1 and second reflecting layer 16 exposes and multiply by this second reflectivity R2 sum (P1 * R1+P2 * R2), its character is an average reflectance, wherein the setting of this area size area size that then should consideration in fact reflects block 162 is calculated distortion to avoid the target area to choose the improper reflectivity that causes.In the present embodiment, the area that is electrically connected zone 122 reflection block 162 far away because of distance is bigger, thus on the circuit board 12 distance to be electrically connected the reflectivity in regional 122 zones far away bigger.On using, the light that self-luminous diode 2 emits can be partly reflected by other and member that circuit of light sources module 1 makes up, and the LGP of backlight module for example, this reverberation can arrive the place far away apart from light emitting diode 2 again through repeatedly reflecting.Though arrive the light on the ground, side of healing far away apart from light emitting diode 2, a little less than its intensity heals, but because circuit board 12 is apart from light emitting diode 2 or to be electrically connected the reflectivity in zone far away, zone 122 bigger, can reflect stronger reverberation with respect to its incident light, so can compensate this strength retrogression, even if make the place far away apart from light emitting diode 2, the light that its integral inverted is penetrated by the reflectivity that designs this place can maintain more than the certain intensity; In other words, circuit of light sources module 1 integral body externally can provide comparatively distribution of light uniformly, solves backlight module in the prior art only forms the individual reflection rate on circuit board reflecting layer and can't effectively improve light and concentrate the problem that distributes.
What remark additionally is, because reflection block 162 distributes for discrete, so the introducing of aforementioned average reflectance is only for ease of analyzing, understand by first reflecting layer 14 and second reflecting layer, 16 formed light reflection structures, and the structure that reflection block 162 and first reflecting layer, 14 formation homogeneous reflect in the non-limiting present embodiment.In addition, reverberation or light transmission itself through repeatedly reflecting are attended by strength retrogression's phenomenon usually, if attenuation degree is obvious, on real the work, the area of aforementioned reflection block 162 should increase again, to compensate aforementioned decay.
In addition, in present embodiment, this first reflectivity R1 is more than or equal to 30% and smaller or equal to 98%, this second reflectivity R2 is more than or equal to 90% and smaller or equal to 100%, selecting material when arranging in pairs or groups first reflecting layer 14 and second reflecting layer 16, must notice that this second reflectivity R2 should be greater than this first reflectivity R1, for example select for use the material in first reflecting layer 14 to comprise metal or metallic compound, barium sulfate (reflectivity about 98%) for example, then can corresponding select the material in second reflecting layer 16 for use is silver powder (reflectivity is greater than 99%); But the present invention is not as limit.Again, first reflecting layer 14 and second reflecting layer 16 can utilize the mode of printing, coat in regular turn on the circuit board 12, but the present invention for example are arranged on the circuit board 12 with sheet material and also can not as limit.
Please join Fig. 3 and Fig. 4, Fig. 3 is the vertical view according to a circuit of light sources module 3 of one second preferred embodiment of the present invention, Fig. 4 be among Fig. 3 circuit of light sources module 3 along the profile of face line Y-Y.This circuit of light sources module 3 comprises a circuit board 32, one first reflecting layer 34 and one second reflecting layer 36.Circuit board 32 comprises a plurality of electrical connections zone 322 (with its scopes of box indicating), and each is electrically connected zone 322 and comprises two electrode pad 3222, electrically connects and fix a light emitting diode 2 on it.First reflecting layer 34 is formed on the surface 324 of circuit board 32 and has one first reflectivity R1.Second reflecting layer 36 is formed on first reflecting layer 34 partly to hide first reflecting layer 34 and to have one second reflectivity R2, and this second reflectivity R2 is greater than this first reflectivity R1.Second reflecting layer 36 comprises a plurality of hollow outs zone 362, be distributed on first reflecting layer 34, the area in hollow out zone 362 is along with increasing and reduce with its nearest distance D that is electrically connected between the zone 322, wherein be convenient knowledge figure, hollow out zone 362 adds that hachure represents in Fig. 3, and 34 in first reflecting layer of exposing in the hollow out zone 362 does not indicate in addition.Similarly, in the present embodiment, afore-mentioned distance D may be defined as the centre of form in hollow out zone 362 to the distance between the centre of form in nearest electrical connection zone 322; But the present invention is not as limit.
In the present embodiment, there is different reflectivity in each zone because of the situation difference that hollow out zone 362 distributes on the circuit board 32, this reflectivity is similarly by 36 the common contributions in first reflecting layer 34 and second reflecting layer, it is basis that the operation definition of the reflectivity in a certain zone also can be adopted the area ratio that exposes respectively with first reflecting layer 34 and second reflecting layer 36, as in aforementioned first preferred embodiment about the explanation of reflectivity, repeat no more.In the present embodiment, the area that is electrically connected hollow out zone 362 far away, zone 122 because of distance is less, in other words, it is higher that second reflecting layer 36 hides the ratio in first reflecting layer 34 in this zone, thus on the circuit board 32 distance to be electrically connected the reflectivity in regional 322 zones far away bigger.What remark additionally is that circuit of light sources module 1 hides the ratio in first reflecting layer 14 with the area that changes reflection block 162 to increase by second reflecting layer 16 in first preferred embodiment, and then reaches the purpose of control reflectivity; 3 of circuit of light sources modules to increase the ratio that second reflecting layer 36 hides first reflecting layer 34, can reach the purpose of control reflectivity with the area that changes hollow out zone 362 equally in second preferred embodiment.In brief, both utilize change first reflecting layer 14,34 and second reflecting layer 16,36 to expose the ratio of area to reach the purpose of control reflectivity, so the basic spirit of both technological means there is no difference.Therefore, can directly consult relevant explanation in aforementioned first preferred embodiment, repeat no more about other explanations in first reflecting layer 34 and second reflecting layer 36.
Please join Fig. 5, it is the part sectioned view according to a backlight module 5 of one the 3rd preferred embodiment of the present invention.Backlight module 5 comprises an aforementioned lights source circuit module 1 and a diffuser plate 52, and diffuser plate 52 is arranged on the circuit board 12, wherein please directly consults relevant explanation in aforementioned first preferred embodiment about the explanation of circuit of light sources module 1 each member, repeats no more; In addition, for ease of explanation, in Fig. 5, its travel path of light of self-luminous diode 2 emissions is represented by dotted lines, and comprises paths such as refraction and reflection.
As shown in Figure 5, the light of self-luminous diode 2 emissions is not all directly to enter in the diffuser plate 52, has at least a part to be advanced towards circuit board 12 by diffuser plate 52 reflections.The light of this reflection will be reflected by the light reflection structure that is formed by first reflecting layer 14 and second reflecting layer 16, this light through secondary reflection still only partly can enter in the diffuser plate 52, remainder is then reflected by diffuser plate 52, can arrive the zone far away apart from light emitting diode 2 through the light of repeatedly reflection.Whereby, diffuser plate 52 not only can receive light near light emitting diode 2 places, also can be at the light that receives away from light emitting diode 2 places by first reflecting layer 14 and 16 reflections of second reflecting layer, so diffuser plate 52 receives than the more uniform incident light of the backlight module of known spot light, and the distribution of light that diffuser plate 52 receives is also more even than the backlight module in the known reflecting layer that only forms the individual reflection rate on circuit board, and then diffuser plate 52 can provide more uniform more backlight than known backlit module; In other words, backlight module of the present invention removes and can slow down the moire phenomenon, and the intensity of variation of reflectivity that also can be by the design light reflection structure is significantly to promote uniformity backlight.
In addition, in the present embodiment, diffuser plate 52 can comprise a plurality of light tight sites 522 in addition, can stop that light enters the amount of diffuser plate 52, gap between the intensity of the light that enters with each zone, reduction self-diffusion plate 52 surface, the uniformity backlight that also helps backlight module 5 to provide.Again, if light tight site 522 is formed with reflecting material, then can further be passed to the zone far away apart from light emitting diode 2 by the light of light tight site 522 reflections, to increase the intensity of the light reflection structure reflection ray far away, also can further promote the inhomogeneity effect backlight that backlight module 5 provides apart from light emitting diode 2.Supplementary notes be, backlight module of the present invention is not limited on real the work with circuit of light sources module 1 as the light source generator, the embodiment of aforementioned various circuit of light sources modules or its distortion, combination all can be used as the light source generator of backlight module of the present invention.
Please join Fig. 6, it is the part sectioned view according to a display 7 of one the 4th preferred embodiment of the present invention.Display 7 comprises an aforementioned backlight module 5 and a display floater 72, and display floater 72 is arranged on the diffuser plate 52, wherein please directly consults relevant explanation in aforementioned the 3rd preferred embodiment about the explanation of backlight module 5, repeats no more.As shown in Figure 6, backlight module 5 can provide (being represented by dotted lines opticpath) backlight quite uniformly to display floater 72 by diffuser plate 52 diffusions, mixed light effect, and its generation mechanism repeats no more as described above.Whereby, the display floater 72 of display 7 of the present invention can utilize evenly backlight that this backlight module 5 provides, and shows the high-quality image that display brightness is more even, color is more saturated than the light reflection structure in the known reflecting layer that only forms the individual reflection rate on circuit board.Supplementary notes be, the backlight module of display of the present invention is not limited to backlight module 5 among Fig. 6 on real the work, the backlight module that other form based on the embodiment of aforementioned various circuit of light sources modules or its distortion, combination also can be applicable to display of the present invention.
Compared to aforementioned techniques, circuit of light sources module of the present invention utilizes the reflection multilayer layer to form the light reflection structure of reflectance varies, so that these a plurality of zone regional reflectible light intensities far away more that are electrically connected of distance are strong more, make this circuit of light sources module whole can provide than the more uniform distribution of light of light source module that only on circuit board, forms the reflecting layer of individual reflection rate in the prior art.In brief, circuit of light sources module of the present invention can be established change with reflectivity light reflection structure is as parameter that improves backlight uniformity or design freedom, so can increase the design flexibility of backing structure.Backlight module of the present invention utilizes this light source module to provide more uniform more backlight than backlight module of the prior art, effectively suppresses the moire phenomenon.Display of the present invention utilizes this backlight module to show so that the high-quality image that brightness is more even, color is more saturated to be provided.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. circuit of light sources module is characterized in that it comprises:
One circuit board comprises a plurality of electrical connections zone, and each is electrically connected the zone can be electrically fixing for a light emitting diode;
One first reflecting layer is formed on the surface of this circuit board, and this first reflecting layer has one first reflectivity; And
One second reflecting layer, be formed on this first reflecting layer partly to hide this first reflecting layer, this second reflecting layer has one second reflectivity, this second reflectivity is greater than this first reflectivity, this second reflecting layer comprises a plurality of reflection blocks, be distributed on this first reflecting layer, the area of this reflection block is along with increasing and increase with its nearest distance that is electrically connected between the zone.
2. circuit of light sources module according to claim 1 is characterized in that, this first reflectivity is more than or equal to 30% and smaller or equal to 98%.
3. circuit of light sources module according to claim 1 is characterized in that, this second reflectivity is more than or equal to 90% and smaller or equal to 99%.
4. circuit of light sources module according to claim 1 is characterized in that the material in this first reflecting layer comprises metal or metallic compound.
5. circuit of light sources module according to claim 1 is characterized in that, the material in this first reflecting layer is a barium sulfate.
6. circuit of light sources module according to claim 1 is characterized in that the material in this second reflecting layer comprises metal or metallic compound.
7. circuit of light sources module according to claim 1 is characterized in that, the material in this second reflecting layer is a silver powder.
8. circuit of light sources module is characterized in that it comprises:
One circuit board comprises a plurality of electrical connections zone, and each is electrically connected the zone can be electrically fixing for a light emitting diode;
One first reflecting layer is formed on the surface of this circuit board, and this first reflecting layer has one first reflectivity; And
One second reflecting layer, be formed on this first reflecting layer partly to hide this first reflecting layer, this second reflecting layer has one second reflectivity, this second reflectivity is greater than this first reflectivity, this second reflecting layer comprises a plurality of hollow outs zone, be distributed on this first reflecting layer, the area in this hollow out zone is along with increasing and reduce with its nearest distance that is electrically connected between the zone.
9. backlight module is characterized in that it comprises:
One according to claim 1 each described circuit of light sources module to the claim 8; And
One diffuser plate is arranged on this circuit board.
10. display is characterized in that it comprises:
One backlight module according to claim 9; And
One display floater is arranged on this diffuser plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99143903A TWI435145B (en) | 2010-12-15 | 2010-12-15 | Light source circuit module, backlight module, and display apparatus with reflective structure of light |
| TW099143903 | 2010-12-15 |
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|---|---|
| CN102155681A true CN102155681A (en) | 2011-08-17 |
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| CN 201110026756 Pending CN102155681A (en) | 2010-12-15 | 2011-01-20 | Light source circuit module with light reflection structure, backlight module and display |
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| TW (1) | TWI435145B (en) |
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| CN102494264A (en) * | 2011-08-31 | 2012-06-13 | 友达光电股份有限公司 | Backlight module and display device |
| CN104330919B (en) * | 2014-09-11 | 2017-04-12 | 友达光电股份有限公司 | Backlight module with netted diaphragm support |
| CN104344291A (en) * | 2014-09-11 | 2015-02-11 | 友达光电股份有限公司 | Backlight module |
| CN104456292A (en) * | 2014-09-11 | 2015-03-25 | 友达光电股份有限公司 | Backlight module with light leakage prevention design and manufacturing method thereof |
| CN104456292B (en) * | 2014-09-11 | 2016-09-07 | 友达光电股份有限公司 | Backlight module with light leakage prevention design and manufacturing method thereof |
| CN104344291B (en) * | 2014-09-11 | 2016-11-16 | 友达光电股份有限公司 | Backlight module |
| CN104330919A (en) * | 2014-09-11 | 2015-02-04 | 友达光电股份有限公司 | Backlight module with netted diaphragm support |
| CN108549178A (en) * | 2018-05-07 | 2018-09-18 | 深圳技术大学（筹） | LCD backlight module and display device |
| CN110554558A (en) * | 2018-05-31 | 2019-12-10 | 深圳光峰科技股份有限公司 | High-contrast reflecting screen |
| CN110376794A (en) * | 2019-07-23 | 2019-10-25 | 深圳市隆利科技股份有限公司 | Backlight module and electronic equipment for fingerprint recognition |
| US11538372B2 (en) | 2020-01-06 | 2022-12-27 | Lite-On Opto Technology (Changzhou) Co., Ltd. | Display device |
| CN113077725A (en) * | 2020-01-06 | 2021-07-06 | 光宝光电(常州)有限公司 | Display device |
| CN113805376A (en) * | 2021-02-19 | 2021-12-17 | 友达光电股份有限公司 | Bump structure and liquid crystal display |
| CN113805376B (en) * | 2021-02-19 | 2023-03-10 | 友达光电股份有限公司 | Bump structure and liquid crystal display |
| CN112987404A (en) * | 2021-03-12 | 2021-06-18 | 深圳康佳电子科技有限公司 | Backlight module |
| CN115605806A (en) * | 2021-03-15 | 2023-01-13 | 京东方科技集团股份有限公司（Cn） | Manufacturing method of light mixing plate, light mixing plate and backlight module |
| TWI806654B (en) * | 2021-06-10 | 2023-06-21 | 群創光電股份有限公司 | Backlight module and electronic device including the same |
| WO2023184583A1 (en) * | 2022-04-01 | 2023-10-05 | Tcl华星光电技术有限公司 | Backlight structure and display apparatus |
| US11802677B2 (en) | 2022-04-01 | 2023-10-31 | Tcl China Star Optoelectronics Technology Co., Ltd | Backlight structure and display device |
| CN114719201A (en) * | 2022-05-23 | 2022-07-08 | 罗化芯显示科技开发(江苏)有限公司 | LED backlight assembly and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI435145B (en) | 2014-04-21 |
| TW201224605A (en) | 2012-06-16 |
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Application publication date: 20110817 |