CN108445674B - Flexible light-emitting module, backlight module and display device - Google Patents
Flexible light-emitting module, backlight module and display device Download PDFInfo
- Publication number
- CN108445674B CN108445674B CN201810229417.3A CN201810229417A CN108445674B CN 108445674 B CN108445674 B CN 108445674B CN 201810229417 A CN201810229417 A CN 201810229417A CN 108445674 B CN108445674 B CN 108445674B
- Authority
- CN
- China
- Prior art keywords
- cutting line
- light emitting
- emitting module
- flexible
- protrusions
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000758 substrate Substances 0.000 claims abstract description 64
- 238000005452 bending Methods 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0274—Optical details, e.g. printed circuits comprising integral optical means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0277—Bendability or stretchability details
- H05K1/028—Bending or folding regions of flexible printed circuits
Abstract
The invention relates to a flexible light-emitting module, a backlight module and a display device. The flexible light-emitting module comprises a flexible substrate and a plurality of light-emitting elements. The flexible substrate has a first side, a second side opposite to the first side, and a first cutting line. The first cutting line extends from the first side to the second side so as to form a plurality of first protruding parts which are arranged in a staggered mode on two sides of the first cutting line along the extending direction of the first cutting line. The light-emitting element is arranged on the flexible substrate and is arranged corresponding to the first protruding part.
Description
Technical Field
The present invention relates to a light emitting module, a backlight module and a display device, and more particularly, to a flexible light emitting module, a backlight module having the flexible light emitting module and a display device using the backlight module.
Background
Since the liquid crystal in the lcd does not emit light, the backlight module is usually added to provide the light source required for displaying. The backlight module generally comprises a light emitting module and a light guide plate, wherein the light emitting module is formed by disposing light emitting elements on a strip substrate. Generally, such a strip light emitting module is called a light bar (light bar), and the maximum size of the light bar is usually limited by the size of the substrate.
However, in a large-sized display device, since the size of the long side is much larger than that of the light bar, and since the long side is limited by the size of the light bar, or a single light bar cannot effectively load all the light emitting elements, it is often necessary to form the backlight module by several light bars. However, such a configuration has a poor layout utilization (layout of layout) and is greatly affected by the size of the light bar. Therefore, it is an urgent need to solve the above-mentioned problems by improving the layout utilization of the light bars and reducing the limitation caused by the size of the light bars.
Disclosure of Invention
The invention provides a flexible light-emitting module, which has better typesetting utilization rate, and the size of the light-emitting module is not limited by the size of a substrate.
The invention provides a backlight module, which can have larger size, the included light-emitting module has better typesetting utilization rate, and the size of the light-emitting module is not limited by the size of a substrate.
The invention provides a display device which can be a large-size display device, and the included light-emitting modules have better typesetting utilization rate, and the size of the light-emitting modules is not limited by the size of a substrate.
The flexible light-emitting module comprises a flexible substrate and a plurality of light-emitting elements. The flexible substrate has a first side, a second side opposite to the first side, and a first cutting line. The first cutting line extends from the first side to the second side so as to form a plurality of first protruding parts which are arranged in a staggered mode on two sides of the first cutting line along the extending direction of the first cutting line. The light-emitting element is arranged on the flexible substrate and is arranged corresponding to the first protruding part.
The flexible light-emitting module comprises a flexible substrate and a plurality of light-emitting elements. The flexible substrate is provided with a plurality of first bulges, a first surface and a second surface opposite to the first surface. The flexible substrate includes a first element region, a second element region and a first inflection region. The first element region has a first edge and a second edge opposite to the first edge, wherein the first protruding portion of the portion is located on the first edge. The second element area is provided with a third edge and a fourth edge opposite to the third edge, wherein the first bulge part of the part is positioned on the third edge, and the outline of the third edge corresponds to the outline of the first edge. The first invagination area is connected between the first component area and the second component area. The light-emitting element is arranged on the first surface of the flexible substrate and is arranged corresponding to the first protruding part.
The backlight module comprises a light guide plate and the flexible light-emitting module. In the flexible light emitting module, the first surface of the first element region and the first surface of the second element region face the light guide plate.
The display device comprises the backlight module and the display element layer. The display element layer is configured on the backlight module.
In view of the above, the flexible light emitting module of the present invention uses the flexible substrate as the substrate, and the flexible substrate can be converted from the folded state to the unfolded state after being cut and folded, so that the size of the flexible light emitting module is not limited by the size of the substrate. In addition, the flexible light emitting module of the invention forms a plurality of protruding parts which are staggered at two sides of the cutting line in the extending direction of the cutting line, and the light emitting elements are arranged corresponding to the protruding parts, therefore, the flexible light emitting module can have better typesetting utilization rate. In addition, since the size of the flexible light emitting module of the present invention is not limited by the size of the substrate, or the flexible light emitting module after being unfolded may have a larger length, the backlight module formed by the flexible light emitting module of the present invention and other components may also have a larger size, and further, the backlight module may be applied to a large-size display device.
In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1A is a top view of a folded state of a flexible light emitting module according to a first embodiment of the invention.
Fig. 1B is a top view of a flexible light emitting module according to a first embodiment of the invention in an unfolded state.
Fig. 1C is a partial cross-sectional view illustrating an expanded state of a flexible light emitting module according to a first embodiment of the invention.
Fig. 2 is a top view of a foldable flexible light emitting module according to a second embodiment of the invention.
Fig. 3 is a top view of a foldable flexible light emitting module according to a third embodiment of the invention.
Fig. 4 is a top view of a foldable flexible light emitting module according to a fourth embodiment of the invention.
Fig. 5 is a top view of a folded flexible light emitting module according to a fifth embodiment of the invention.
Fig. 6 is a top view of a backlight module according to an embodiment of the invention.
Fig. 7 is a schematic perspective view of a display device according to an embodiment of the invention.
Description of reference numerals:
100. 200, 300, 400, 500: flexible light-emitting module
110: flexible substrate
111: a first element region
111 a: first reverse-folding zone
112: second element region
112 a: second inflection region
113: third element region
113 a: third inflection zone
114: a fourth element region
121: first side
122. 422: second side
131: first side
132: second surface
141: first projecting part
142. 442, 542: second projecting part
150. 250, 550: light emitting element
151: distance between two adjacent plates
160: connecting pad
C1: first cutting line
C1 a: first direction of extension
C2: second cutting line
C2 a: second direction of extension
C3: third cutting line
C3 a: a third direction of extension
F1: first fold line
F2: second fold line
F3: third fold line
F4: the fourth broken line
F5: the fifth fold line
F6: the sixth broken line
S1: first side
S2: second side
S3: third side
S4: fourth side
S5: fifth side
S6: sixth side
S7: seventh side
S8: the eighth side
P1: first point
P2: second point
P3: third point
P4: fourth point
P5: fifth point
10: backlight module
11: light guide plate
11 a: light incident surface
11 b: light emitting surface
20: display device
21: display element layer
R: region(s)
Detailed Description
Fig. 1A is a top view of a folded state of a flexible light emitting module according to a first embodiment of the invention. Fig. 1B is a top view of a flexible light emitting module according to a first embodiment of the invention in an unfolded state. Fig. 1C is a schematic partial cross-sectional view illustrating an expanded state of a flexible light emitting module according to a first embodiment of the invention. Specifically, fig. 1C is a schematic cross-sectional view of the region R in fig. 1B.
In this embodiment, the flexible light emitting module 100 may include a flexible substrate 110, a plurality of connecting pads 160, and a plurality of light emitting elements 150. The light emitting element 150 is disposed on the first surface 131 of the flexible substrate 110, and the light emitting element 150 may be electrically connected to the connecting pad 160 through a wire (not shown). In the embodiment, the connecting pads 160 are disposed on the first surface 131 of the flexible substrate 110, but the invention is not limited thereto. In other embodiments, the connecting pads 160 may be disposed on the second surface 132 of the flexible substrate 110 opposite to the first surface 131 according to the requirement of the circuit design (layout). In addition, the light emitting elements 150 can be connected in series and/or in parallel, and can emit lights of the same and/or different colors. In the present embodiment, the Light-emitting element 150 is, for example, a Light-emitting diode (LED), but the Light-emitting color, number, size, style, type of the Light-emitting element 150 and/or the electrical connection manner between the Light-emitting elements 150 are not limited in the present invention. The material of the flexible substrate 110 is, for example, Polyimide (PI) or other suitable flexible materials, so that the flexible light emitting module 100 having the flexible substrate 110 can be bent or curved.
As shown in fig. 1A, the flexible substrate 110 may be a full-face sheet-like substrate, and the flexible substrate 110 has a first side 121 and a second side 122 opposite to each other, wherein the connecting pad 160 is closer to the first side 121 than the second side 122. The flexible substrate 110 has a first cutting line C1, a first folding line F1 and a second folding line F2. The first cutting line C1 intersects the first folding line F1 at a first point P1, the first cutting line C1 intersects the second folding line F2 at a second point P2, the first cutting line C1 extends from the first side 121 to the second side 122 along the first extending direction C1a, and the first cutting line C1 passes through the first point P1 and stops at the second point P2. In other words, the first cut line C1 does not penetrate through the flexible substrate 110. In this way, the flexible substrate 110 may be cut along the first cutting line C1 by scissors, a blade, water jet cutting, laser cutting or other suitable cutting devices/methods, such that the flexible substrate 110 forms the first element region 111 and the second element region 112 on two opposite sides of the first cutting line C1, and the first element region 111 and the second element region 112 are connected by the first inflection region 111a therebetween.
As shown in fig. 1A to 1C, the first element region 111 has a first side S1 and a second side S2 opposite to each other, and the second element region 112 has a third side S3 and a fourth side S4 opposite to each other. In addition, since the first side S1 of the first device region 111 and the third side S3 of the second device region 112 are formed by cutting the flexible substrate 110 along the first cutting line C1, the contour of the first side S1 corresponds to the contour of the third side S3 between the first point P1 and the first side 121. The first cutting line C1 is a broken line having a plurality of concave-convex profiles. In this way, in the first extending direction C1a, the first cutting lines C1 having the concave-convex profile may form a plurality of first protrusions 141 crossing both sides of the first cutting line C1. That is, a part of the first protrusions 141 is located on the first side S1 of the first element region 111, the remaining part of the first protrusions 141 is located on the third side S3 of the second element region 112, and the first protrusions 141 located on the first element region 111 and the first protrusions 141 located on the second element region 112 overlap each other in the first extending direction C1a and are disposed to intersect opposite sides of the first cutting line C1.
In the present embodiment, the concave-convex profile of the first cutting line C1 is substantially a regular trapezoid, such that the first protrusion 141 defined by the first cutting line C1 has a corresponding regular trapezoid, and the upper bottom of the regular trapezoid is a portion of the first cutting line C1 (or the first side S1/the third side S3), but the invention is not limited thereto. In other embodiments, the concave-convex profiles may be similar to an arc, a triangle, a rectangle or an inverted trapezoid, so that the shape of the first protrusion 141 is a corresponding arc, a triangle, a rectangle or an inverted trapezoid.
The light emitting elements 150 are disposed on the first protrusion 141, and distances 151 between the light emitting elements 150 and the first cutting line C1 are the same in a direction perpendicular to the first extending direction C1 a. That is, in the direction perpendicular to the first extending direction C1a, the distance 151 between the light emitting device 150 disposed on the first device region 111 and the first side S1 is the same, and the distance 151 between the light emitting device 150 disposed on the second device region 112 and the third side S3 is the same. As such, when the flexible light emitting module 100 is in the folded state as shown in fig. 1A, the light emitting elements 150 may overlap each other in the first extending direction C1A. Moreover, when the flexible light emitting module 100 is in the unfolded state as shown in fig. 1B, the light emitting elements 150 may overlap each other. Of course, since fig. 1B shows a specific unfolded state, the light emitting elements 150 may not overlap when the flexible light emitting module 100 is in other different unfolded or flexed states.
In the present embodiment, one light emitting element 150 is disposed corresponding to one first protrusion 141. That is, the number of the light emitting elements 150 is the same as the number of the first protrusions 141, but the present invention is not limited thereto. For example, in the embodiment shown in fig. 1A and 1B, three first protrusions 141/light emitting elements 150 are located on the first element region 111, and three first protrusions 141/light emitting elements 150 are located on the second element region 112.
Referring to fig. 1A to fig. 1C, in the present embodiment, a transformation manner between the folded state and the unfolded state of the flexible light emitting module 100 may be as follows. First, referring to fig. 1A, the second element region 112 may be folded toward the first element region 111 and the first inflection region 111A along the second folding line F2, so that the first side S1 and the third side S3 facing and contacting each other in the folded state are separated, and the first surface 131 located in the second element region 112 faces the first surface 131 located in the first element region 111 and the first surface 131 located in the first inflection region 111A. Then, the folded second element region 112 and the first reverse folding region 111a may be folded toward the first element region 111 along the first folding line F1, so that the second face 132 located at the first reverse folding region 111a faces the second face 132 located at the first element region 111, so as to form the unfolded state shown in fig. 1B. Also, in the region R in fig. 1B, a cross-sectional view along the direction from the second side S2/the fourth side S4 to the first side S1/the third side S3 may be as shown in fig. 1C. In addition, the above steps are reversed to convert the flexible light emitting module 100 from the unfolded state to the folded state.
Of course, the above-mentioned conversion manner between the unfolded state and the folded state of the flexible light emitting module 100 is only an exemplary representation, and the invention is not limited thereto. For example, the second element region 112 may be folded toward the first element region 111 and the first inflection region 111a along the second folding line F2, such that the first side S1 and the third side S3 facing and contacting each other in the folded state are separated, and the second surface 132 of the second element region 112 faces the second surface 132 of the first element region 111 and the second surface 132 of the first inflection region 111 a. Then, the folded second element region 112 and the first reverse folding region 111a may be folded toward the first element region 111 along the first folding line F1, so that the first face 131 at the first reverse folding region 111a faces the first face 131 at the first element region 111, to form another unfolded state. In addition, the above steps are reversed to convert the flexible light emitting module 100 from another unfolded state to a folded state.
Of course, the flexible light emitting module 100 may have other different unfolding or bending states by different cutting or folding/bending manners of the flexible substrate 110.
Fig. 2 is a top view of a foldable flexible light emitting module according to a second embodiment of the invention. In the present embodiment, the flexible light emitting module 200 is similar to the flexible light emitting module 100, and similar components are denoted by the same reference numerals and have similar functions, and descriptions thereof are omitted. Referring to fig. 1A and fig. 2, a difference between the flexible light emitting module 200 of the present embodiment and the flexible light emitting module 100 of the above embodiment is: the plurality of light emitting elements 250 are arranged corresponding to one first protrusion 141. That is, the number of the light emitting elements 250 is an integral multiple of the number of the first protrusions 141. In the embodiment shown in fig. 2, three first protrusions 141 on the first device region 111 are taken as an example, six light emitting devices 250 on the first device region 111 are taken as an example, three first protrusions 141 on the second device region 112 are taken as an example, and six light emitting devices 250 on the second device region 112 are taken as an example.
Of course, the flexible light emitting module 200 of the present embodiment can also be converted between the unfolded state and the folded state in a manner similar to the flexible light emitting module 100 of the above embodiments, which is not described herein again.
Fig. 3 is a top view of a foldable flexible light emitting module according to a third embodiment of the invention. In the present embodiment, the flexible light emitting module 300 is similar to the flexible light emitting module 100, and similar components are denoted by the same reference numerals and have similar functions, and descriptions thereof are omitted.
Referring to fig. 1A and fig. 3, in the present embodiment, the flexible substrate 110 further has a second cut line C2, a third cut line C3, a third fold line F3, a fourth fold line F4, a fifth fold line F5, and a sixth fold line F6. The second cut line C2 is located between the first cut line C1 and the third cut line C3. The third fold line F3 is located between the first cut line C1 and the second cut line C2. The fifth fold line F5 is located between the second cut line C2 and the third cut line C3. The second cut line C2, the third cut line F3 and the fourth cut line F4 intersect at a third point P3, the second cut line C2 extends from the second side 122 to the first side 121 along a second extending direction C2a, the second extending direction C2a is opposite to the first extending direction C1a, and the second cut line C2 ends at a third point P3. The third cut line C3 intersects the fifth fold line F5 at a fourth point P4, the third cut line C3 intersects the sixth fold line F6 at a fifth point P5, the third cut line C3 extends from the first side 121 to the second side 122 along a third extending direction C3a, the third extending direction C3a is the same as the first extending direction C1a, and the third cut line C3 passes through the fourth point P4 and ends at the fifth point P5. In other words, neither the second scribe line C2 nor the third scribe line C3 penetrates through the flexible substrate 110. In this way, the flexible substrate 110 may be further cut along the second cutting line C2 and the third cutting line C3, so that the flexible substrate 110 further forms the third device region 113 and the fourth device region 114, wherein the second device region 112 and the third device region 113 are on two opposite sides of the second cutting line C2, and the third device region 113 and the fourth device region 114 are on two opposite sides of the third cutting line C3. The second element region 112 and the third element region 113 are connected by a second inflection region 112a therebetween, and the third element region 113 and the fourth element region 114 are connected by a third inflection region 113a therebetween. The first inflection region 111a and the second inflection region 112a are respectively located at two opposite ends of the second element region 112, and the second inflection region 112a and the third inflection region 113a are respectively located at two opposite ends of the third element region 113.
The third element region 113 has a fifth side S5 and a sixth side S6 opposite to each other, and the sixth element region has a seventh side S7 and an eighth side S8 opposite to each other. Moreover, since the fourth side S4 of the second element region 112 and the sixth side S6 of the third element region 113 are formed by cutting the flexible substrate 110 along the second cutting line C2, and the fifth side S5 of the third element region 113 and the seventh side S7 of the fourth element region 114 are formed by cutting the flexible substrate 110 along the third cutting line C3, the contour of the fourth side S4 corresponds to the contour of the sixth side S6, and the contour of the fifth side S5 corresponds to the contour of the seventh side S7 between the fourth point P4 and the first side 121. The third cutting line C3 is a broken line having a plurality of concave-convex profiles. In this way, in the third extending direction C3a, the third cut line C3 having the concave-convex profile may form a plurality of second protrusions 142 staggered on both sides of the third cut line C3. That is, a part of the second protrusions 142 is located on the fifth side S5 of the third element region 113, the remaining part of the second protrusions 142 is located on the seventh side S7 of the fourth element region 114, and the second protrusions 142 located on the third element region 113 and the second protrusions 142 located on the fourth element region 114 overlap each other in the third extending direction C3a and are arranged to intersect with opposite sides of the third cutting line C3.
In the present embodiment, the number of the first protrusions 141 is the same as the number of the second protrusions 142, but the present invention is not limited thereto.
In the present embodiment, the size and shape of the first protrusion 141 are the same as those of the second protrusion 142, but the present invention is not limited thereto.
Fig. 4 is a top view of a foldable flexible light emitting module according to a fourth embodiment of the invention. In the present embodiment, the flexible light emitting module 400 is similar to the flexible light emitting module 300, and similar components are denoted by the same reference numerals and have similar functions, and descriptions thereof are omitted. Referring to fig. 3 and 4, a difference between the flexible light emitting module 400 of the present embodiment and the flexible light emitting module 300 of the previous embodiment is: the second side 422 of the flexible substrate 110 is a broken line. Part of the fourth side S4 of the second element region 112 and the sixth side S6 of the third element region 113 are formed by cutting the flexible substrate 110 along the second cutting line C2, so that part of the contour of the fourth side S4 corresponds to the contour of the sixth side S6. Also, the number of the first protrusions 141 is different from the number of the second protrusions 442.
Fig. 5 is a top view of a folded flexible light emitting module according to a fifth embodiment of the invention. In the present embodiment, the flexible light emitting module 500 is similar to the flexible light emitting module 300, and similar components are denoted by the same reference numerals and have similar functions, and descriptions thereof are omitted. Referring to fig. 3 and 5, a difference between the flexible light emitting module 500 of the present embodiment and the flexible light emitting module 300 of the previous embodiment is: the size of the first protrusion 141 is different from the size of the second protrusion 542. Besides, the light emitting element 550 disposed on the second protrusion 542 may be the same as or different from the light emitting element 150 disposed on the first protrusion 141, and the invention is not limited thereto.
Fig. 6 is a top view of a backlight module 10 according to an embodiment of the invention. In this embodiment, the backlight module 10 may include a light guide plate 11 and the flexible light emitting module of any of the foregoing embodiments. It is to be noted that, in the embodiment shown in fig. 6, the plurality of flexible light emitting modules included in the backlight module 10 are the flexible light emitting modules 100 of the first embodiment having an unfolded state, and for clarity, each flexible light emitting module 100 only shows a relative relationship between the flexible substrate 110 and the plurality of light emitting elements 150, and the folding state of the flexible substrate 110 is omitted.
Referring to fig. 6, in the flexible light emitting module 100, the first surface 131 equipped with the light emitting element 150 faces the light incident surface 11a of the light guide plate 11, so that the light emitted by the light emitting element 150 can enter the light guide plate 11 through the light incident surface 11a, and then exits from the light emitting surface 11b of the light guide plate 11 after being guided by the light.
In the present embodiment, the flexible light emitting module 100 is in an expanded state, but the invention is not limited thereto. In other embodiments, the flexible light emitting module 100 may have other flexible or bending states according to design requirements.
Fig. 7 is a schematic perspective view of a display device 20 according to an embodiment of the invention. In this embodiment, the display device 20 may include the display element layer 21 and the backlight module 10, wherein the backlight module 10 may include the light guide plate 11 and the flexible light emitting module of any of the foregoing embodiments. It should be noted that in the embodiment shown in fig. 7, the plurality of flexible light emitting modules included in the backlight module 10 is the flexible light emitting module 100 of the first embodiment having an expanded state as an example, and for clarity, the backlight module 10 only shows a relative relationship between the flexible substrate 110 in the flexible light emitting module 100 and the light guide plate 11, and the folding state of the flexible substrate 110 is omitted.
Referring to fig. 7, light emitted from the flexible light emitting module 100 can enter the light guide plate 11 through the light incident surface 11a, and then exit from the light emitting surface 11b of the light guide plate 11 after being guided by the light, and the brightness of the light is controlled by the display device layer 21.
In summary, the flexible light emitting module of the present invention uses the entire flexible substrate as the substrate, and the flexible substrate can be converted from the folded state to the unfolded state after being cut and folded, so that the size of the flexible light emitting module is not limited by the size of the substrate. In addition, the flexible light emitting module of the invention forms a plurality of protruding parts which are staggered at two sides of the cutting line in the extending direction of the cutting line, and the light emitting elements are arranged corresponding to the protruding parts, therefore, the flexible light emitting module can have better typesetting utilization rate. In addition, since the size of the flexible light emitting module of the present invention is not limited by the size of the substrate, or the flexible light emitting module after being unfolded may have a larger length, the backlight module formed by the flexible light emitting module of the present invention and other components may also have a larger size, and further, the backlight module may be applied to a large-size display device.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.
Claims (20)
1. A flexible light emitting module includes:
a flexible substrate having a first side, a second side opposite to the first side, a first cutting line and a first and a second folding line, wherein the first cutting line extends from the first side to the second side to form a plurality of first protrusions crossing the first cutting line along a first extending direction of the first cutting line, the first cutting line intersects the first folding line at a first point, the first cutting line intersects the second folding line at a second point, the first cutting line passes through the first point and stops at the second point, and the first cutting line does not penetrate through the flexible substrate; and
and the light-emitting elements are arranged on the flexible substrate and are arranged corresponding to the first bulges.
2. The flexible light emitting module of claim 1, wherein the first protrusions overlap each other in the first extending direction.
3. The flexible light-emitting module of claim 1, wherein the distances between the light-emitting elements and the first cutting line are the same.
4. The flexible light-emitting module of claim 1, wherein each of the light-emitting elements is disposed corresponding to each of the first protrusions.
5. The flexible light-emitting module of claim 1, wherein a plurality of the light-emitting elements are disposed corresponding to the first protrusions.
6. The flexible light emitting module of claim 1, wherein the flexible substrate further comprises a second scribe line and a third scribe line, wherein:
the second cutting line extends from the second side to the first side; and is
The third cutting line extends from the first side to the second side so as to form a plurality of second protruding portions staggered at two sides of the third cutting line in the extending direction of the third cutting line, the second cutting line is positioned between the first cutting line and the third cutting line, and the light-emitting elements are also arranged corresponding to the second protruding portions;
wherein, the second cutting line and the third cutting line do not penetrate the flexible substrate.
7. The flexible light emitting module of claim 6, wherein the number of the first protrusions is different from the number of the second protrusions.
8. The flexible light emitting module of claim 6, wherein the first protrusions have a different size than the second protrusions.
9. A flexible light emitting module includes:
a flexible substrate having a plurality of first protrusions, a first surface, a second surface opposite to the first surface, a first cutting line, a first folding line and a second folding line, wherein the first cutting line intersects the first folding line at a first point, the first cutting line intersects the second folding line at a second point, the first cutting line passes through the first point and stops at the second point, the first cutting line does not penetrate through the flexible substrate, the flexible substrate comprising:
a first element region having a first edge and a second edge opposite to the first edge, wherein part of the first protrusions are located on the first edge;
the second element area is provided with a third edge and a fourth edge opposite to the third edge, wherein the first convex parts of the part are positioned on the third edge, and the outline of the first edge corresponds to the outline of the third edge; and
a first inflection region connected between the first element region and the second element region; and
and the light-emitting elements are arranged on the first surface of the flexible substrate and are arranged corresponding to the first bulges.
10. The flexible light emitting module of claim 9, wherein the first protrusions overlap each other in a direction in which the first cutting line extends.
11. The flexible light emitting module of claim 9, wherein the distance between the light emitting elements and the first side or the third side is the same.
12. The flexible light-emitting module of claim 9, wherein each of the light-emitting elements is disposed corresponding to each of the first protrusions.
13. The flexible light-emitting module of claim 9, wherein a plurality of the light-emitting elements are disposed corresponding to the first protrusions.
14. The flexible light emitting module of claim 9, wherein the flexible substrate further has a plurality of second protrusions, the light emitting elements are further disposed corresponding to the second protrusions, and the flexible substrate further comprises:
the third element area is provided with a fifth edge and a sixth edge opposite to the fifth edge, wherein part of the second protruding parts are positioned on the fifth edge;
the fourth element area is provided with a seventh side and an eighth side opposite to the seventh side, wherein the second bulges are positioned on the seventh side, and the outline of the fifth side corresponds to the outline of the seventh side;
the second inflection zone is connected between the second element zone and the third element zone, and the first inflection zone and the second inflection zone are respectively positioned at two opposite ends of the second element zone; and
and the second inflection region and the third inflection region are respectively positioned at two opposite ends of the third element region.
15. The flexible light emitting module of claim 14, wherein the number of the first protrusions is different from the number of the second protrusions.
16. The flexible light emitting module of claim 14, wherein the first protrusions have a different size than the second protrusions.
17. The flexible light emitting module of claim 9, wherein the first edge of the first device region faces the third edge of the second device region.
18. The flexible lighting module of claim 9, wherein:
the first surface located in the first element region faces the first surface located in the first inflection region, and the second surface located in the first inflection region faces the second surface located in the second element region; or
The second surface located in the first element region faces the second surface located in the first inflection region, and the first surface located in the first inflection region faces the first surface located in the second element region.
19. A backlight module, comprising:
a light guide plate; and
the flexible light emitting module of claim 9, wherein the first surface of the first element region and the first surface of the second element region face the light guide plate.
20. A display device, comprising:
the backlight module of claim 19; and
a display element layer configured on the backlight module.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107102605 | 2018-01-25 | ||
| TW107102605A TWI647498B (en) | 2018-01-25 | 2018-01-25 | Flexible light emitting module, backlight module with the same, and display device using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108445674A CN108445674A (en) | 2018-08-24 |
| CN108445674B true CN108445674B (en) | 2021-01-19 |
Family
ID=63195336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810229417.3A Active CN108445674B (en) | 2018-01-25 | 2018-03-20 | Flexible light-emitting module, backlight module and display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108445674B (en) |
| TW (1) | TWI647498B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113934049A (en) * | 2020-06-29 | 2022-01-14 | 苏州璨鸿光电有限公司 | Backlight module and display device using same |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329047A (en) * | 2008-07-22 | 2008-12-24 | 友达光电股份有限公司 | Light source module, LCD device and circuit board set |
| TW201106063A (en) * | 2009-08-11 | 2011-02-16 | Au Optronics Corp | Backlight module with low electromagnetic interference and display device using the same |
| TW201118470A (en) * | 2009-11-27 | 2011-06-01 | Au Optronics Corp | Double-side display panel with backlight module used therein and manufacture method thereof |
| CN102386179A (en) * | 2010-09-02 | 2012-03-21 | 恩普乐股份有限公司 | Light emitting apparatus and multi-surface pattern substrate |
| CN103363362A (en) * | 2012-03-29 | 2013-10-23 | 友达光电股份有限公司 | Lamp strip structure |
| TW201351679A (en) * | 2012-06-15 | 2013-12-16 | Gio Optoelectronics Corp | Light emitting apparatus |
| CN203349037U (en) * | 2013-07-22 | 2013-12-18 | 苏州东山精密制造股份有限公司 | LED (Light Emitting Diode) lamp bar and backlight module using same |
| CN104201276A (en) * | 2014-08-15 | 2014-12-10 | 厦门市瀚锋光电科技有限公司 | Peripherally light-emitting strip-shaped light source |
| CN204358668U (en) * | 2014-12-10 | 2015-05-27 | 江苏鸿佳电子科技有限公司 | A kind of LED interlocks continuous circuits plate |
| CN205920916U (en) * | 2016-07-06 | 2017-02-01 | 群光电子(苏州)有限公司 | Softness circuit board of leaded light module and structure cuts thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI420203B (en) * | 2010-10-19 | 2013-12-21 | Au Optronics Corp | Frame, back light module and liquid display module |
| CN103307507A (en) * | 2012-03-09 | 2013-09-18 | 鑫成科技(成都)有限公司 | Assembly method for backlight module, backlight module and liquid crystal display device |
| TWI484254B (en) * | 2012-04-30 | 2015-05-11 | Au Optronics Corp | Mother board of light modulating panel, light modulating panel and stereoscopic display device |
| CN203478019U (en) * | 2013-09-17 | 2014-03-12 | 南京中电熊猫液晶显示科技有限公司 | Backlight module |
| CN104089217A (en) * | 2014-06-20 | 2014-10-08 | 北京京东方视讯科技有限公司 | Backlight source, backlight module and display device |
-
2018
- 2018-01-25 TW TW107102605A patent/TWI647498B/en active
- 2018-03-20 CN CN201810229417.3A patent/CN108445674B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329047A (en) * | 2008-07-22 | 2008-12-24 | 友达光电股份有限公司 | Light source module, LCD device and circuit board set |
| TW201106063A (en) * | 2009-08-11 | 2011-02-16 | Au Optronics Corp | Backlight module with low electromagnetic interference and display device using the same |
| TW201118470A (en) * | 2009-11-27 | 2011-06-01 | Au Optronics Corp | Double-side display panel with backlight module used therein and manufacture method thereof |
| CN102386179A (en) * | 2010-09-02 | 2012-03-21 | 恩普乐股份有限公司 | Light emitting apparatus and multi-surface pattern substrate |
| CN103363362A (en) * | 2012-03-29 | 2013-10-23 | 友达光电股份有限公司 | Lamp strip structure |
| TW201351679A (en) * | 2012-06-15 | 2013-12-16 | Gio Optoelectronics Corp | Light emitting apparatus |
| CN203349037U (en) * | 2013-07-22 | 2013-12-18 | 苏州东山精密制造股份有限公司 | LED (Light Emitting Diode) lamp bar and backlight module using same |
| CN104201276A (en) * | 2014-08-15 | 2014-12-10 | 厦门市瀚锋光电科技有限公司 | Peripherally light-emitting strip-shaped light source |
| CN204358668U (en) * | 2014-12-10 | 2015-05-27 | 江苏鸿佳电子科技有限公司 | A kind of LED interlocks continuous circuits plate |
| CN205920916U (en) * | 2016-07-06 | 2017-02-01 | 群光电子(苏州)有限公司 | Softness circuit board of leaded light module and structure cuts thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201932890A (en) | 2019-08-16 |
| CN108445674A (en) | 2018-08-24 |
| TWI647498B (en) | 2019-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101473552B1 (en) | Surface light source device, lcd device and mobile device | |
| JP5973171B2 (en) | Surface lighting device | |
| JP2010272262A (en) | Planar illuminating device | |
| CN108445674B (en) | Flexible light-emitting module, backlight module and display device | |
| JP6604505B2 (en) | Light emitting device | |
| US8888350B2 (en) | Light source assembly and backlight assembly having the same | |
| JP2012134496A (en) | Led light source module and display device including the same | |
| CN107783222A (en) | Planar illuminating device and substrate | |
| JP2009104801A (en) | Liquid crystal module | |
| TWI479237B (en) | Backlight module | |
| JP2020205183A (en) | Electronic apparatus and display device | |
| JP2008108758A (en) | Flexible substrate | |
| WO2016170621A1 (en) | Light source device, display device, substrate unit manufacturing method, and light source device manufacturing method | |
| JP2006119321A (en) | Electrically conductive connection structure between electric circuits | |
| US20150042902A1 (en) | Lighting device and display system including lighting device | |
| CN110441962A (en) | Backlight module | |
| US20140233257A1 (en) | Light emitting module applied to display device | |
| US11428861B2 (en) | Backlight module and input apparatus | |
| US10925157B2 (en) | Flexible wiring board and display device | |
| TWI516843B (en) | Backlight module and display device | |
| US20240126004A1 (en) | Input apparatus and backlight module | |
| JP6968229B2 (en) | Backlight module and display device equipped with it | |
| CN214252817U (en) | Side income formula liquid crystal display backlight lamp strip structure | |
| US10120122B2 (en) | Planar lighting device with external connection section | |
| JP2007188719A (en) | Liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |