CN203910618U - Light leakproof microstructure applied to broken hole of keyboard backlight module - Google Patents
Light leakproof microstructure applied to broken hole of keyboard backlight module Download PDFInfo
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- CN203910618U CN203910618U CN201420164287.7U CN201420164287U CN203910618U CN 203910618 U CN203910618 U CN 203910618U CN 201420164287 U CN201420164287 U CN 201420164287U CN 203910618 U CN203910618 U CN 203910618U
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Abstract
The utility model provides a light leakproof microstructure applied to a broken hole of a keyboard backlight module; the light leakproof microstructure comprises a backlight module having a light guide plate; at least one side of the light guide plate is provided with a light source projecting light to the light guide plate; the light guide plate is provided with a t least one broken hole penetrating an upper surface and a lower surface; the microstructure is arranged around the broke hole on the upper and lower surfaces of the light guide plate or arranged on an inner wall surface of the broken hole in a recessed manner; the microstructure of the light guide plate can guide the light, sent to the broken hole by the light guide plate, back to an inner side of the light guide plate, thus effectively preventing light leakage phenomenon of the light emitted by the light guide plate in the broken hole; uniformity and direction of the light emitted by the light guide plate can be adjusted; the microstructure cannot protrude outside the upper and lower surfaces of the light guide plate; the thickness between the light guide plate cooperated reflective sheet and light shield sheet cannot be enlarged, so a whole thickness of the backlight module can be thinner.
Description
Technical field
The utility model provides a kind of light leakage micro-structural that is applied to keyboard back light module broken hole position, espespecially in light guide plate, be positioned at holes around upper and lower two side surface places or holes internal face place for being concaved with micro-structural, and the ray guidance that light guide plate is passed to broken hole position by micro-structural goes back to light guide plate inside, effectively to prevent that light guide plate is in the phenomenon of broken hole position generation light leak.
Background technology
The fast development of electronics technology and information industry now, make various electronic products all towards light, thin, short, little and powerful trend development, as computer, notebook computer, net arrangement (MID), intelligent mobile phone, flat computer etc. in the action, become modern's indispensable electronic product in daily life or work, and between user and electronic product, be to link up with input equipments such as mouse, keyboards mostly, wherein with keyboard, the most conveniently do again the input operation of word, numeral or instruction, and promote practical function.
Moreover, in order to make human eye under the environment of insufficient light, clearly see the symbol on each button, just there is dealer in keyboard, to import light guide plate and light source technology, and develop the backlight keyboard of tool backlight module, the place, the back side that makes light that backlight module produces can project each keycap forms backlight effect, allow user can know the symbol of seeing on keycap, with handled easily, use, and at present backlight keyboard on the market includes key-press module and backlight module, wherein this backlight module is for having a light guide plate, and be provided with light source in light guide plate one side place, and the light-emitting diode on light source can make light guide plate uniformly light-emitting towards light guide plate throw light, the emitted light reflection of light guide plate lower surface can return the reflecting piece in light guide plate for being provided with in place, light guide plate below again, and be provided with the anti-dazzling screen corresponding to key-press module place in light guide plate upper surface, just can by the emitted light of light guide plate through the transmittance section of anti-dazzling screen be incident on key-press module, form backlight.
Yet, in light guide plate, general big city is provided with a plurality of holes, point bar (Pointing Stick) for backlight keyboard inside, after passing, reference column or other member assemble or fixing use, but when reality is used, the light that light source projects is easy to that broken hole position light guide plate spills and phenomenon that light leak occurs, cause the emitted light of light guide plate more inhomogeneous, and can have influence on whole luminous efficiency, and in order to solve light guide plate because of the more inhomogeneous problem of broken hole position bright dipping that light leak causes, just there is dealer to develop can to utilize light-absorption layer to absorb to be passed to the light of broken hole position to prevent the backlight module of light leak, refer to shown in Fig. 8, part sectioned view for existing backlight module, wherein the light guide plate A1 of this backlight module A is upper for being provided with the holes A11 connecting to the upper and lower two side surface places of light guide plate A1, and all utilize ink or other light absorbent to be formed with light-absorption layer A12 with coating method in upper and lower two side surface places around in holes A11, and light guide plate A1 mono-side surface place is provided with reflecting piece A2, light guide plate A1 is provided with an anti-dazzling screen A3 with respect to the another side surface place of reflecting piece A2.
But backlight keyboard design at present more and more trends towards miniaturization, make backlight keyboard inner space also be tending towards narrow, therefore the road of breaking through development is there's no one who doesn't or isn't thought hard by Ge Jia manufacturer, with the upper thickness reduction of expectation backlight keyboard design and more slimming, this kind of light guide plate A1 is positioned at holes A11, and around a side or two side surface places are formed with and print the light-absorption layer A12 that black ink or belling mold catoptric arrangement, just can cause upper and lower two side surfaces of light guide plate A1 and reflecting piece A2, between anti-dazzling screen A3, be formed with respectively a thickness T, to cause backlight module A thickness more to reduce, so will how effectively to prevent that light guide plate A1 light from the phenomenon of light leak occurring at holes A11 place, and can solve the problem of light-absorption layer integral thickness that A12 the causes increase of light guide plate A1, just for being engaged in the key point of this journey redesign that dealer desires most ardently.
Utility model content
The utility model creator is because problem and the disappearance of existing keyboard back light module perforation place light leak, be to collect related data via in many ways assessing and considering, and utilize the research and development experience for many years of engaging in the industry constantly study and revise, the novel birth of light leakage micro-structural that this kind is applied to keyboard back light module broken hole position of beginning to design.
Main purpose of the present utility model is to be to provide the light leakage micro-structural that is applied to keyboard back light module broken hole position, include backlight module, at least one side of light guide plate place of this backlight module institute tool is provided with the light source that projects light towards light guide plate, and be provided with at least one perforation to the holes at upper and lower two side surface places in light guide plate, and in light guide plate, be positioned at holes and around upper and lower two side surface places or holes internal face place be concaved with micro-structural, the ray guidance that the micro-structural of this kind of light guide plate can be passed to light guide plate broken hole position goes back to light guide plate inside.
The beneficial effects of the utility model: the utility model with the light that effectively prevents light guide plate and penetrate in broken hole position generation light leakage phenomena, and adjust the irradiant uniformity of light guide plate and directivity, and because micro-structural can not protrude from the upper and lower two side surface places of light guide plate, can make light guide plate coordinate more docile between reflecting piece, anti-dazzling screen and thickness can not increase, and then make the more slimming of backlight module integral thickness.
Secondary objective of the present utility model be light guide plate holes around better being embodied as in upper and lower two side surface places be concaved with micro-structural, but when practical application, also can further be concaved with at the holes internal face place of light guide plate the micro-structural of annular arrangement, or only at holes internal face place, be concaved with the micro-structural of annular arrangement, and because of the mode of micro-structural machine-shaping a lot, also can utilize low-grade fever molded, micro-ejection formation, micro-casting, the micro-feature Outshooting compression shaping in surface or carbon dioxide laser machine-shaping, or it is molded to utilize carbon dioxide laser machine-shaping first to produce above-mentioned low-grade fever, micro-ejection formation, micro-casting, the micro-feature Outshooting compression shaping in surface or the required micro-die of other micro-model technology, again by micro-die with hot-forming, micro-ejection formation, around upper and lower two side surface places or holes internal face place are concaved with micro-structural at the holes of light guide plate for micro-casting or surperficial micro-feature Outshooting compression shaping.
Accompanying drawing explanation
Fig. 1 is stereo appearance figure of the present utility model.
Fig. 2 is three-dimensional exploded view of the present utility model.
Fig. 3 is side cutaway view of the present utility model.
Fig. 4 is the partial enlarged drawing of the utility model Fig. 3.
Fig. 5 is the side cutaway view of the utility model preferred embodiment.
Fig. 6 is the stereo appearance figure of another preferred embodiment of the utility model.
Fig. 7 is the utility model stereo appearance figure of a preferred embodiment again.
Fig. 8 is the part sectioned view of existing backlight module.
[symbol description]
1, backlight module
11, light guide plate
111, holes
112, micro-structural
113, the first hollow-out parts
12, light source
121, flexible circuit board
122, light-emitting component
13, reflecting piece
131, the second hollow-out parts
14, anti-dazzling screen
141, transmittance section
15, baffle plate
2, key-press module
21, base plate
22, push-button unit
221, keycap
222, connect mechanism
23, film circuit board
24, flexible member
A, backlight module
A1, light guide plate
A11, holes
A12, light-absorption layer
A2, reflecting piece
A3, anti-dazzling screen
Embodiment
For reaching above-mentioned purpose and effect, the technological means that the utility model adopts and structure thereof, hereby draw and illustrate with regard to preferred embodiment of the present utility model that in detail its structure is as follows with function, in order to understand completely.
Refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5, be respectively stereo appearance figure of the present utility model, three-dimensional exploded view, side cutaway view, the partial enlarged drawing of Fig. 3 and the side cutaway view of preferred embodiment, in figure, can know and find out, the utility model is for including backlight module 1, this backlight module 1 is for having a light guide plate 11, and in light guide plate 11, be provided with at least one and connect to the holes 111 at the upper and lower two side surface places of light guide plate 11, and being positioned at holes 111 all utilizes low-grade fever molded in upper and lower two side surface places around, micro-ejection formation, micro-casting, the micro-feature Outshooting compression shaping in surface or other micro-model technology are directly concaved with concentric circles, V-arrangement shape (V-Cut) the section micro-structural 112 of annular or rectangular array, and at least one side of light guide plate 11 place is the light source 12 that is provided with tool flexible circuit board 121 and at least one light-emitting component 122, and the better enforcement of this light-emitting component 122 can be light-emitting diode and is coupled to formation electric connection on flexible circuit board 121, but when practical application, light-emitting component 122 also can be miniature lamp or fluorescent tube (as cold cathode fluorescent lamp) is connected in formation electric connection on flexible circuit board 121.
Moreover, the light guide plate 11 1 side surface places of backlight module 1 are for being provided with reflecting piece 13, and the another side surface place with respect to reflecting piece 13 is provided with anti-dazzling screen 14, and in light guide plate 11 with on reflecting piece 13 surfaces respectively relative being provided with can be the perforation of various shapes or the first hollow-out parts 113 of profile groove and the second hollow-out parts 131, and reflecting piece 13 is better, be embodied as between light guide plate 11 and the flexible circuit board 121 of light source 12, but when practical application, reflecting piece 13 also can be positioned at flexible circuit board 121 with respect to the another side surface place of light guide plate 11, just flexible circuit board 121 can be supported and is affixed on reflecting piece 13 with respect to the another side surface place of light guide plate 11, and stretch into and be positioned at light guide plate 11 first hollow-out parts 113 corresponding with reflecting piece 13 and the second hollow-out parts 131 is a location by a plurality of light-emitting components 122, separately, this anti-dazzling screen 14 is for being a location to being affixed on the another side surface place of light guide plate 11 with respect to flexible circuit board 121, and in anti-dazzling screen 14 surfaces, be provided with corresponding to the holes 111 of light guide plate 11 and a plurality of transmittance sections 141 at the first hollow-out parts 113 places, and each transmittance section 141 can be respectively a perforation or transmission region, again, reflecting piece 13 places, bottom surface of backlight module 1 are coated on for further supporting to paste to be positioned with the ring baffle 15 that light guide plate 11, reflecting piece 13 and anti-dazzling screen 14 are located around, but when practical application, also can around locate as being covered with light leakage adhesive tape (not shown) in light guide plate 11, to prevent that light that light source 12 projected from penetrating and uniformly light-emitting more from light guide plate 11 side edge.
Yet, on backlight module 1 for being further provided with key-press module 2, and include base plate 21 in key-press module 2, a plurality of push-button units 22, film circuit board 23 and at least one flexible member 24, and push-button unit 22 is for being arranged on base plate 21, and include a keycap 221 and be positioned at keycap 221 and 21 connect mechanisms 222 that can move up and down for keycap 221 of base plate, and the better enforcement of connect mechanism 222 can be a scissor leg structure, just film circuit board 23 can be arranged to below or the place, top of base plate 21, and flexible member 24 is arranged between film circuit board 23 and a plurality of push-button unit 22, when user's finger presses is in keycap 221 surfaces of push-button unit 22 when upper, its keycap 221 just can press down flexible member 24 and touch and on film circuit board 23, make the contact of circuit contact with each other to form to electrically conduct, to produce the trigger signals of push-button unit 22 character symbols that are pressed corresponding to this, export the controller of backlight keyboard to, only this part is because key-press module 2 coordinates the structural design mode of backlight module 1 a lot, and the formation of this thin portion is not the main points of founding of this case, hereby do not remake and repeat.
When the light-emitting component 122 of light source 12 is luminous, can projecting light towards light guide plate 11, that light is transmitted in light guide plate 11 is luminous uniformly, because reflecting piece 13 can't printing opacity, just can utilize reflecting piece 13 that the emitted light reflection of light guide plate 11 lower surfaces is returned in light guide plate 11, and make light only can pass through a plurality of transmittance sections 141 on anti-dazzling screen 14, after reentering and being incident upon push-button unit 22 places on key-press module 2 with light-transmissive and passing, can reach the good luminous effect of backlight keyboard, holes 111 with this light guide plate 11 is concaved with micro-structural 112 in upper and lower two side surface places around, the light that light guide plate 11 can be passed to holes 111 places reflects, after reflection, guide back light guide plate 11 inside, effectively to prevent that the emitted light of light guide plate 11 from holes 111 places, light leakage phenomena occurring, and uniformity and the directivity of the light of capable of regulating light guide plate 11 ejaculations, and because micro-structural 112 can not protrude from the upper and lower two side surface places of light guide plate 11, institute is so that light guide plate 11 and reflecting piece 13, more docile and thickness can not increase between anti-dazzling screen 14, and then make the more slimming of thickness of backlight module 1 integral body.
Separately please refer to Fig. 3, Fig. 4, Fig. 6, shown in Fig. 7, be respectively side cutaway view of the present utility model, the partial enlarged drawing of Fig. 3, the stereo appearance figure of another preferred embodiment and the again stereo appearance figure of a preferred embodiment, in figure, can know and find out, wherein around the holes 111 of this light guide plate 11, better being embodied as in upper and lower two side surface places utilizes low-grade fever molded, micro-ejection formation, micro-casting, the micro-feature Outshooting compression shaping in surface or other micro-model technology are concaved with the micro-structural 112 of radial arrangement, but when practical application, also can at the holes 111 internal face places of light guide plate 11, be to be further concaved with the micro-structural 112 of annular arrangement, or omission light guide plate 11 is positioned at holes 111 micro-structural 112 designs at upper and lower two side surface places around, and only at holes 111 internal face places, be concaved with the micro-structural 112 of annular arrangement, and because of micro-structural 112 machine-shaping modes a lot, also around upper and lower two side surface places or holes 111 internal face places are concaved with micro-structural 112 at the holes 111 of light guide plate 11 can to utilize carbon dioxide laser (CO2Laser) machine-shaping, or it is molded to utilize carbon dioxide laser machine-shaping first to produce above-mentioned low-grade fever, micro-ejection formation, micro-casting, the micro-feature Outshooting compression shaping in surface or the required micro-die of other micro-model technology, again by micro-die with hot-forming, micro-ejection formation, around upper and lower two side surface places or holes 111 internal face places are concaved with micro-structural 112 at the holes 111 of light guide plate 11 for micro-casting or surperficial micro-feature Outshooting compression shaping, it only needs the ray guidance that provides micro-structural 112 light guide plate 11 can be passed to holes 111 places to go back to light guide plate 11 inside, effectively to prevent that holes 111 places from light leakage phenomena occurring.
Above-mentioned detailed description is for a kind of preferably possible embodiments explanation of the utility model, only this embodiment is not in order to limit claim of the present utility model, all other do not depart from the equalization completing under the skill spirit that the utility model discloses to be changed and modifies change, all should be contained in the scope of the claims that the utility model contains.
In sum, when the light leakage micro-structural that is applied to keyboard back light module broken hole position of the present utility model is used for really reaching its effect and object, therefore the utility model is really the utility model of a practicality excellence, meet in fact the application requirement of utility model patent, file an application in accordance with the law.
Claims (15)
1. a light leakage micro-structural that is applied to keyboard back light module broken hole position, it is characterized in that including backlight module, this backlight module is for having light guide plate, and be provided with towards light guide plate throw light and make the irradiant light source of light guide plate at least one side of light guide plate place, and for being provided with at least one, connect the holes to upper and lower two side surface places in light guide plate, and be positioned at holes and be around concaved with and the ray guidance that is passed to broken hole position can be returned to the micro-structural of light guide plate inside in upper and lower two side surface places.
2. the light leakage micro-structural that is applied to keyboard back light module broken hole position as claimed in claim 1, it is characterized in that, the micro-structural on this backlight module light-guide plate is for utilizing molded, the micro-ejection formation of low-grade fever, micro-casting, surperficial micro-feature Outshooting compression shaping or the moulding of carbon dioxide laser machining.
3. the light leakage micro-structural that is applied to keyboard back light module broken hole position as claimed in claim 1, it is characterized in that, micro-structural on this backlight module light-guide plate is for forming concentric circles, annular array, rectangular array or radial arrangement, and micro-structural section is V-arrangement shape.
4. the light leakage micro-structural that is applied to keyboard back light module broken hole position as claimed in claim 1, it is characterized in that, the light source of this backlight module is for having flexible circuit board, and be provided with at least one light-emitting component in flexible circuit board, and be provided with reflecting piece in light guide plate one side surface place, and be provided with anti-dazzling screen with respect to the another side surface place of reflecting piece.
5. the light leakage micro-structural that is applied to keyboard back light module broken hole position as claimed in claim 4, it is characterized in that, this light guide plate with on reflecting piece surface, be relative the first hollow-out parts and the second hollow-out parts of being provided with respectively, and be inserted in the first hollow-out parts and the second hollow-out parts and be a location by each light-emitting component of light source, and anti-dazzling screen surface is provided with corresponding to the holes of light guide plate and a plurality of transmittance sections at the first hollow-out parts place.
6. the light leakage micro-structural that is applied to keyboard back light module broken hole position as claimed in claim 4, is characterized in that, this light-emitting component is light-emitting diode, miniature lamp or fluorescent tube.
7. the light leakage micro-structural that is applied to keyboard back light module broken hole position as claimed in claim 1, is characterized in that, the holes internal face place on this backlight module light-guide plate is for being further concaved with the micro-structural of annular arrangement.
8. the light leakage micro-structural that is applied to keyboard back light module broken hole position as claimed in claim 1, it is characterized in that, on this backlight module for being further provided with key-press module, and include base plate, a plurality of push-button unit, film circuit board and at least one flexible member in key-press module, and push-button unit is for being arranged on base plate, and include keycap and be positioned at keycap and base plate between the connect mechanism that can move up and down for keycap, and film circuit board is below or the place, top that is arranged at base plate, and flexible member is arranged between film circuit board and a plurality of push-button unit.
9. a light leakage micro-structural that is applied to keyboard back light module broken hole position, it is characterized in that, include backlight module, this backlight module is for having light guide plate, and be provided with towards light guide plate throw light and make the irradiant light source of light guide plate at least one side of light guide plate place, and for being provided with at least one, connect the holes to upper and lower two side surface places in light guide plate, and holes internal face place is concaved with and the ray guidance that is passed to broken hole position can be returned to the micro-structural of light guide plate inside.
10. the light leakage micro-structural that is applied to keyboard back light module broken hole position as claimed in claim 9, it is characterized in that, the micro-structural on this backlight module light-guide plate is for utilizing molded, the micro-ejection formation of low-grade fever, micro-casting, surperficial micro-feature Outshooting compression shaping or the moulding of carbon dioxide laser machining.
The 11. light leakage micro-structurals that are applied to keyboard back light module broken hole position as claimed in claim 9, is characterized in that, the micro-structural on this backlight module light-guide plate is for forming annular arrangement.
The 12. light leakage micro-structurals that are applied to keyboard back light module broken hole position as claimed in claim 9, it is characterized in that, the light source of this backlight module is for having flexible circuit board, and be provided with at least one light-emitting component in flexible circuit board, and be provided with reflecting piece in light guide plate one side surface place, and be provided with anti-dazzling screen with respect to the another side surface place of reflecting piece.
The 13. light leakage micro-structurals that are applied to keyboard back light module broken hole position as claimed in claim 12, it is characterized in that, this light guide plate with on reflecting piece surface, be relative the first hollow-out parts and the second hollow-out parts of being provided with respectively, and be inserted in the first hollow-out parts and the second hollow-out parts and be a location by each light-emitting component of light source, and anti-dazzling screen surface is provided with corresponding to the holes of light guide plate and a plurality of transmittance sections at the first hollow-out parts place.
The 14. light leakage micro-structurals that are applied to keyboard back light module broken hole position as claimed in claim 12, is characterized in that, this light-emitting component is light-emitting diode, miniature lamp or fluorescent tube.
The 15. light leakage micro-structurals that are applied to keyboard back light module broken hole position as claimed in claim 9, it is characterized in that, on this backlight module for being further provided with key-press module, and include base plate, a plurality of push-button unit, film circuit board and at least one flexible member in key-press module, and push-button unit is for being arranged on base plate, and include keycap and be positioned at keycap and base plate between the connect mechanism that can move up and down for keycap, and film circuit board is below or the place, top that is arranged at base plate, and flexible member is arranged between film circuit board and a plurality of push-button unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420164287.7U CN203910618U (en) | 2014-04-04 | 2014-04-04 | Light leakproof microstructure applied to broken hole of keyboard backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420164287.7U CN203910618U (en) | 2014-04-04 | 2014-04-04 | Light leakproof microstructure applied to broken hole of keyboard backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910618U true CN203910618U (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420164287.7U Expired - Fee Related CN203910618U (en) | 2014-04-04 | 2014-04-04 | Light leakproof microstructure applied to broken hole of keyboard backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203910618U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105304388A (en) * | 2015-09-08 | 2016-02-03 | 苏州达方电子有限公司 | Light-emitting keyboard and shading structure thereof |
| CN105425331A (en) * | 2015-09-01 | 2016-03-23 | 苏州达方电子有限公司 | Backlight module and light guide plate thereof |
| CN108305809A (en) * | 2018-01-25 | 2018-07-20 | 苏州达方电子有限公司 | Illuminated keyboard and its backlight module |
| CN109027766A (en) * | 2018-04-26 | 2018-12-18 | 江西联创致光科技有限公司 | The full frame special shaped LED backlight of mobile phone |
| TWI713983B (en) * | 2018-04-16 | 2020-12-21 | 大陸商光寶電子（廣州）有限公司 | Key structure |
| TWI737439B (en) * | 2019-08-29 | 2021-08-21 | 群光電能科技股份有限公司 | Opto-electronic module |
| US11257637B2 (en) | 2018-04-16 | 2022-02-22 | Lite-On Electronics (Guangzhou) Limited | Backlit key structure bottom plate with light blocking protrusions having differing heights |
| US11599203B2 (en) * | 2021-07-23 | 2023-03-07 | Chicony Power Technology Co., Ltd. | Backlight module |
-
2014
- 2014-04-04 CN CN201420164287.7U patent/CN203910618U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425331A (en) * | 2015-09-01 | 2016-03-23 | 苏州达方电子有限公司 | Backlight module and light guide plate thereof |
| CN105304388A (en) * | 2015-09-08 | 2016-02-03 | 苏州达方电子有限公司 | Light-emitting keyboard and shading structure thereof |
| CN108305809A (en) * | 2018-01-25 | 2018-07-20 | 苏州达方电子有限公司 | Illuminated keyboard and its backlight module |
| TWI713983B (en) * | 2018-04-16 | 2020-12-21 | 大陸商光寶電子（廣州）有限公司 | Key structure |
| US11257637B2 (en) | 2018-04-16 | 2022-02-22 | Lite-On Electronics (Guangzhou) Limited | Backlit key structure bottom plate with light blocking protrusions having differing heights |
| CN109027766A (en) * | 2018-04-26 | 2018-12-18 | 江西联创致光科技有限公司 | The full frame special shaped LED backlight of mobile phone |
| TWI737439B (en) * | 2019-08-29 | 2021-08-21 | 群光電能科技股份有限公司 | Opto-electronic module |
| US11599203B2 (en) * | 2021-07-23 | 2023-03-07 | Chicony Power Technology Co., Ltd. | Backlight module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20190404 |
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| CF01 | Termination of patent right due to non-payment of annual fee |