CN111679502B - Flexible backlight module and liquid crystal display panel - Google Patents
Flexible backlight module and liquid crystal display panel Download PDFInfo
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- CN111679502B CN111679502B CN202010594560.XA CN202010594560A CN111679502B CN 111679502 B CN111679502 B CN 111679502B CN 202010594560 A CN202010594560 A CN 202010594560A CN 111679502 B CN111679502 B CN 111679502B
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- 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
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
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- 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
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
Abstract
The application provides a flexible backlight unit and liquid crystal display panel, include: the light guide plate comprises a light emitting surface, a bottom surface and at least one light incident surface, the light incident surface is vertical to and adjacent to the light emitting surface, and the light emitting surface and the bottom surface are arranged oppositely; the backlight source is positioned on the light incident surface of the light guide plate; the flexible luminous film layer, it is provided with one or more slots to go out the plain noodles, the flexible luminous film layer sets up in the slot, sets up many slots that have the flexible luminous film layer through the play plain noodles at the light guide plate, can release partly bending stress, realizes the bendability of light guide plate to and solve and lead to the inhomogeneous problem of display backlight distribution because of the display panel is crooked.
Description
Technical Field
The application relates to the technical field of display, in particular to a flexible backlight module and a liquid crystal display panel.
Background
In the field of display technology, liquid crystal display technology has a very important position. A liquid crystal display device, one of the most popular and popular display devices at present, has advantages of a high response speed, a high display screen brightness, a high contrast, and low power consumption. The liquid crystal display device comprises a backlight module and a liquid crystal display module, wherein a display picture needs a light source provided by the backlight module, and a liquid crystal and a color film plate in the liquid crystal display module are used for displaying a color pattern. The quality of the light source provided by the backlight module directly affects the display effect of the display device.
The backlight module can be divided into an edge-lit backlight module and a direct-lit backlight module according to the position of the light source. The side-in type backlight module is characterized in that a light source is arranged at the edge of a back plate at the side rear part of a liquid crystal panel, enters a light guide plate from a light incoming surface at one side of the light guide plate, is emitted from a light outgoing surface of the light guide plate after being reflected and diffused, and forms a surface light source which is provided for the liquid crystal panel. The direct type backlight module is characterized in that a plurality of groups of light sources are uniformly distributed at the bottom of the backlight module, and a divergent lens is additionally arranged on each light source to mix light in the space distance of an inner cavity of the backlight module to form a surface light source for a liquid crystal panel; the side-entry backlight module generally includes an LED light source, a back plate, a reflector plate, a Light Guide Plate (LGP), a diffuser, a brightness enhancement film, and a light-shielding adhesive according to the structure.
With the increasing emergence of wearable applications such as smart glasses, smart watches, etc., the demand of the display industry for flexible display devices is also increasing. The flexible display technology at present only simply makes flexible bendable with liquid crystal display panel part still be practical application far away, still need have flexible backlight unit to arrange and can use, and the crooked main bottleneck that needs to realize being shaded lies in LGP's bending at present, and the material of light guide plate generally adopts the acrylic of comparatively stereoplasm optics level, PC panel or PMMA material, and the flexibility is not good enough, and current backlight technology is difficult to realize even display effect under crooked state in addition.
Disclosure of Invention
The embodiment of the application aims to provide a flexible backlight module and a liquid crystal display panel, and solves the problem of uneven backlight distribution caused by bending of a display panel and bending of the display panel.
The application provides a flexible backlight unit, includes:
the light guide plate comprises a light emitting surface, a bottom surface and at least one light incident surface, the light incident surface is vertical to and adjacent to the light emitting surface, and the light emitting surface and the bottom surface are arranged oppositely;
the backlight source is positioned on one side of the light incident surface, so that light emitted by the backlight source enters the light guide plate through the light incident surface;
the light-emitting surface is provided with one or more grooves, and the flexible light-emitting film layer is arranged in the grooves.
Furthermore, the light-emitting surface is provided with four end faces, and the groove is formed in at least one end face of the light-emitting surface. So that the light guide plate has peripheral flexibility.
Furthermore, the light emitting surface is provided with a center, and the groove penetrates through the center to divide the light emitting surface into two parts. So that the light guide plate can be folded and bent.
Furthermore, the grooves are uniformly distributed on the light emitting surface at intervals. So that the light guide plate has overall flexibility.
Further, the grooves are parallel to each other.
Furthermore, the grooves can be crossed at a certain angle.
Furthermore, the light guide plate is provided with at least one bending shaft, the light guide plate can be bent along the bending shaft, and the orthographic projection of the groove on the light emitting surface is in a strip shape extending along the direction of the bending shaft.
Further, the cross section of the groove is rectangular, triangular, trapezoidal or semicircular.
Furthermore, the flexible light-emitting film layer is composed of a plurality of light-emitting elements, and the light-emitting elements are sub-millimeter light-emitting diodes or/and micro light-emitting diodes.
Furthermore, the groove is provided with a bottom edge, a plurality of side edges and an opening, and the light emitting direction of the flexible light emitting film layer is over against the opening or/and the side edges.
Further, still be provided with the flexible circuit board in the slot, flexible luminous rete with flexible circuit board electric connection.
Further, the flexible luminous film layer is divided into an upper part and a lower part, the light emitting direction of the flexible luminous film layer is from the lower part to the upper part, and the flexible circuit board is located at the lower end of the flexible luminous film layer.
In a second aspect, a liquid crystal display panel is further provided, which includes the backlight module of the first aspect.
The application provides a flexible backlight unit and liquid crystal display panel, because flexible liquid crystal display panel need arrange flexible backlight unit, and backlight unit's flexibility mainly receives the restriction of light guide plate, and this application sets up a plurality of slots through the play plain noodles at the light guide plate, on the one hand, can release the bending stress of partly light guide plate, realizes the peripheral or holistic bendability of light guide plate. On the other hand, set up the flexible luminous rete in the slot, played supplementary luminous effect, broken through traditional side income formula backlight unit and leaded to the light-emitting of light guide plate uneven because the panel is crooked, perhaps jumbo size display panel's light guide plate light-emitting is uneven, influences the condition of display effect at last, in addition, the flexible luminous rete in the slot also can play the effect of supplementary slot shadow, consequently, can realize even display effect under the crooked state of liquid crystal display panel.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic perspective view of a flexible backlight module in the prior art;
fig. 2 is a schematic structural diagram of a flexible backlight module according to an embodiment of the present disclosure;
fig. 3 is a schematic cross-sectional structure view of a flexible backlight module according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a second flexible backlight module according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a third flexible backlight module according to an embodiment of the present disclosure;
fig. 6 is a schematic cross-sectional structure view of a third flexible backlight module according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a fourth flexible backlight module according to an embodiment of the present application;
fig. 8 is a schematic cross-sectional structure view of a fourth flexible backlight module according to an embodiment of the present disclosure;
FIG. 9 is a schematic structural diagram of a groove portion provided in an embodiment of the present application;
fig. 10 is a schematic structural diagram of another groove portion provided in an embodiment of the present application.
Wherein the reference numbers indicate:
100-a light guide plate; 110-a light incident surface; 120-a light-emitting surface; 130-a bottom surface; 200-a trench; 210-bottom edge; 220-side; 300-a flexible luminescent film layer; 310-a light emitting element; 400-a flexible circuit board; 500-bending the shaft; 600-backlight source.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Specifically, referring to fig. 1 to 10, an embodiment of the present invention provides a flexible backlight module, including:
the light guide plate 100 includes a light exit surface 120, a bottom surface 130, and at least one light entrance surface 110, wherein the light entrance surface 110 is perpendicular to and adjacent to the light exit surface 120, and the light exit surface 120 is opposite to the bottom surface 130;
the backlight source 600 is located at one side of the light incident surface 110, so that light emitted by the backlight source 600 enters the light guide plate 100 through the light incident surface 110;
the light emitting surface 120 of the flexible light emitting film layer 300 is provided with one or more grooves 200, and the flexible light emitting film layer 300 is arranged in the grooves 200.
Wherein, the backlight includes circuit board and led.
A flexible circuit board 400 is further disposed in the groove 200, and the flexible light emitting film layer 300 is electrically connected to the flexible circuit board 400.
Wherein, the grooves 200 are parallel to each other or arranged crosswise at a certain angle. When the grooves 200 are arranged crosswise, it is preferable that the crossing angle between the grooves is 90 °, the crossing point is located at the center of the light guide plate, or a plurality of crossing points are arranged around the center, under such a condition, it is advantageous to supplement the light source of the large-sized liquid crystal display panel.
The light guide plate 100 has at least one bending axis 500, the light guide plate 100 can be bent along the bending axis 500, and the orthographic projection of the groove 200 on the light emitting surface 120 is a straight strip extending along the direction of the bending axis 500.
According to the flexible backlight module provided by the embodiment of the application, the light emitting surface 120 of the light guide plate 100 is provided with the plurality of grooves 200, so that a part of bending stress can be released, and the flexibility of the periphery or the whole of the light guide plate 100 is realized. On the other hand, the flexible light-emitting film layer 300 is arranged in the groove 200, so that the auxiliary light-emitting effect is achieved, the situation that the display effect is affected finally due to the fact that the light-emitting of the light guide plate 100 is uneven because the panel of the traditional lateral backlight module is bent or the light-emitting of the light guide plate 100 of a large-size display panel is uneven is broken through, and in addition, the flexible light-emitting film layer 300 in the groove 200 can also achieve the effect of supplementing the groove shadow. Therefore, the liquid crystal display panel can achieve a uniform display effect in a curved state.
In some embodiments, the light emitting surface 120 has four end surfaces, and the groove 200 is disposed on at least one end surface of the light emitting surface 120. Preferably, the end surfaces may be two and oppositely disposed, so that the light guide plate 100 has flexibility of the periphery.
Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a flexible backlight module shown in fig. 1, which includes a light guide plate 100 and a backlight source 600, where the light guide plate 100 includes a light exit surface 120, a bottom surface 120 and a light entrance surface 110, where an arrow represents a light entrance direction of the backlight source 600; fig. 2 is a schematic structural view of a flexible backlight module according to an embodiment of the present disclosure, in which it can be seen that a backlight source 600 is disposed at a lower end of a light guide plate 100 in the flexible backlight module, the backlight module emits light in a side-in mode, and grooves 200 including flexible light-emitting film layers 300 are disposed on left and right end surfaces of the light guide plate 100, so that the light guide plate 100 has left and right flexibility; fig. 3 is a schematic cross-sectional view of a flexible backlight module according to an embodiment of the present disclosure, in which the direction indicated by an arrow is a light emitting direction of the flexible light emitting film 300, and it can be further seen from the figure that, due to poor flexibility of the backlight source 600, the backlight source 600 is disposed at an unbent portion, light sources at the unbent portion of the flexible backlight module are provided by the backlight source 600, and light sources at a curved portion are provided by the flexible light emitting film 300; fig. 4 is a schematic structural view of a second flexible backlight module according to an embodiment of the present disclosure, and it can be seen from the figure that a backlight source 600 is disposed at a lower end of a light guide plate 100 in the flexible backlight module, and grooves 200 containing flexible light emitting film layers 300 are disposed at upper and lower end surfaces of the light guide plate 100, so that the light guide plate 100 has upper and lower flexibility.
It should be understood that the above figures only represent the distribution of the grooves 200 around a portion of the light guide plate 100, and the grooves 200 may also be distributed on both the upper and lower end surfaces or the left and right end surfaces, or at least one groove 200 may be provided on each end surface, as long as the grooves 200 are provided around the light guide plate 100, and the specific description is not limited herein.
According to the flexible backlight module provided by the embodiment of the application, the groove 200 is arranged on the end face, so that the periphery of the light guide plate 100 can be bent to a certain degree.
In some embodiments, the light emitting surface 120 has a center, and the groove 200 passes through the center to divide the light emitting surface 120 into two parts, so that the light guide plate 100 can be folded and bent, thereby realizing the foldable bending of the display panel.
Fig. 5 is a schematic structural diagram of a third flexible backlight module according to an embodiment of the present disclosure, in which a groove 200 is located in a middle position of a light guide plate 100 in the flexible backlight module, and upper and lower ends of the light guide plate 100 are respectively provided with a backlight source 600; fig. 6 shows a structural schematic diagram of a cross section of a corresponding flexible backlight module, wherein arrows indicate light emitting directions of the flexible light emitting film layer 300 and the backlight source 600. The backlight 600 supplements the light sources in the unbent portions and the flexible luminescent film layer 300 supplements the light sources in the curved portions.
The flexible backlight module provided by the embodiment of the application sets up the groove 200 through the intermediate position at the light guide plate 100, thereby can realize the fifty percent discount of light guide plate 100 is crooked, and the flexible luminous rete 300 in the groove 200 can supply the light of the curved part of light guide plate 100, has solved the crooked back of light guide plate 100, and the light that the backlight 600 sent is difficult to reach the curved part of light guide plate 100 for the inhomogeneous phenomenon of light-emitting of light guide plate 100.
In some embodiments, the grooves 200 are uniformly spaced on the light emitting surface 120. So that the light guide plate 100 has overall flexibility.
Referring to fig. 7 and 8, fig. 7 is a schematic structural view of a fourth flexible backlight module according to the embodiment of the present application, and it can be seen from the schematic structural view that grooves 200 are regularly arranged at intervals on the light emitting surface 120 of the light guide plate 100 of the whole flexible backlight module, the grooves 200 are transversely disposed, and the backlight sources 600 are disposed at the upper and lower ends of the light guide plate 100; fig. 8 is a corresponding cross-sectional view of the bent light guide plate 100, wherein arrows indicate light emitting directions of the flexible light emitting film layer 300 and the backlight 600, the backlight 600 is a main light source, and the flexible light emitting film layer 300 is an auxiliary light source.
The embodiment of the application provides a flexible backlight module, so that the light guide plate 100 has overall flexibility. In addition, the method also facilitates the passing of module experiments, especially reliability tests. At present, in the process of manufacturing a product, after the backlight module is manufactured, reliability test needs to be performed on the backlight module, wrinkles (film arches) may appear in the LCD module structure, especially in the backlight structure, wherein the reasons for the wrinkles include bowing (reverse tilting) of the light guide plate 100, the stress condition of the light guide plate 100 is one of the main reasons for bowing of the light guide plate 100, and by arranging the groove 200 on the light guide plate 100, the stress can be released to a certain degree, thereby facilitating the passing of the test.
It is understood that the above figures only represent one aspect of the above embodiments, and the grooves 200 may be disposed longitudinally or inclined at a certain angle, and are not limited herein.
In some embodiments, the cross-section of the groove 200 is rectangular, triangular, trapezoidal, or semi-circular.
In some embodiments, referring to fig. 9 and 10, the flexible light emitting film layer 300 is composed of a plurality of light emitting elements 310, and the light emitting elements 310 are sub-millimeter light emitting diodes (mini LEDs) or/and micro light emitting diodes (micro LEDs).
Sub-millimeter light emitting diodes (mini LEDs) refer to LEDs with a package size of 0.1-0.2mm, and are also called sub-millimeter LEDs.
Micro light emitting diodes (micro leds). The traditional LED structure is miniaturized and matrixed, and a drive circuit is manufactured by adopting a CMOS integrated circuit process to realize the display technology of addressing control and independent drive of each pixel point.
According to the flexible backlight module provided by the embodiment of the application, because the mini LED or the micro LED is used as the complementary backlight source 600, the flexible backlight module has the advantages that the color gamut of the panel is very good, and the contrast is very high. And each lamp can be controlled independently, so that regional dimming can be realized, and the display effect is improved.
The groove 200 has a bottom edge 210, a plurality of side edges 220, and an opening, and the light emitting direction of the flexible light emitting film 300 is opposite to the opening or/and the side edges 220.
Specifically, the flexible light emitting film layer 300 is divided into an upper end and a lower end, the light emitting direction of the flexible light emitting film layer 300 is from the lower end to the upper end, and the flexible circuit board 400 is located at the lower end of the flexible light emitting film layer 300.
Fig. 9 and fig. 10 are schematic structural diagrams of two groove portions according to embodiments of the present disclosure, respectively, where fig. 9 shows that the light emitting direction of the flexible light emitting film layer 300 faces the opening. Fig. 10 shows that the light-emitting direction of the flexible light-emitting film layer 300 faces the two side edges 220 of the groove 200.
The flexible backlight module provided by the embodiment of the application provides the light emitting directions of the two flexible light emitting film layers 300, namely, the direction facing the opening of the groove 200 and the direction facing the side edge 220 of the groove 200, and the light emitting directions of the two flexible light emitting film layers 300 can both realize the auxiliary light emitting effect. It is understood that these two light emitting directions can be applied to any of the above embodiments, and are not described herein.
It should be noted that, in the above embodiment of the flexible backlight module, only the above structure is described, and it should be understood that, besides the above structure, the flexible backlight module according to the embodiment of the present invention may further include any other necessary structure as needed, such as a back plate, a reflective sheet, a diffusion sheet, a brightness enhancement sheet, a light shielding glue, and the like, and the specific structure is not limited herein.
On the basis of the above embodiments, the present application further provides a liquid crystal display panel including the backlight module provided in the above embodiments.
On the basis of the above embodiments, the present application further provides a liquid crystal display device, such as a mobile phone, a liquid crystal television, or a wearable device, including the liquid crystal display panel provided in the above embodiments.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The flexible backlight module and the liquid crystal display panel provided by the embodiment of the present application are described in detail above, and a specific example is applied in the description to explain the principle and the implementation manner of the present application, and the description of the above embodiment is only used to help understanding the technical scheme and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (13)
1. A flexible backlight module, comprising:
the light guide plate comprises a light emitting surface, a bottom surface and at least one light incident surface, when the light guide plate is not bent, the light incident surface is perpendicular to and adjacent to the light emitting surface, and the light emitting surface and the bottom surface are oppositely arranged;
the backlight source is positioned on one side of the light incident surface;
the light-emitting surface is provided with one or more grooves, and the flexible light-emitting film layer is arranged in the grooves.
2. The flexible backlight module according to claim 1, wherein the light exit surface has four curved end surfaces after the light guide plate is bent, and the groove is disposed on at least one curved end surface of the light exit surface.
3. The flexible backlight module according to claim 1, wherein the light exit surface has two curved end surfaces after the light guide plate is bent, the two curved end surfaces are disposed opposite to each other, and the groove is disposed on at least one curved end surface of the light exit surface.
4. The flexible backlight module as recited in claim 1, wherein the light exit surface has a center, and the groove passes through the center to divide the light exit surface into two portions.
5. The flexible backlight module of claim 1, wherein the grooves are uniformly spaced on the light-emitting surface.
6. The flexible backlight module of claim 5, wherein the grooves are parallel to each other.
7. The flexible backlight module according to claim 1, wherein the light guide plate has at least one bending axis, the light guide plate can be bent along the bending axis, and the orthographic projection of the groove on the light emitting surface is a strip shape extending along the direction of the bending axis.
8. The flexible backlight module of claim 1, wherein the grooves have a rectangular, triangular, trapezoidal, or semicircular cross section.
9. The flexible backlight module according to claim 1, wherein the flexible light-emitting film layer is composed of a plurality of light-emitting elements, and the light-emitting elements are sub-millimeter light-emitting diodes or/and micro light-emitting diodes.
10. The flexible backlight module of claim 1, wherein the groove has a bottom edge, a plurality of side edges, and an opening, and the light-emitting direction of the flexible light-emitting film layer is opposite to the opening or/and the side edges.
11. The flexible backlight module of claim 1, wherein a flexible circuit board is further disposed in the groove, and the flexible light-emitting film layer is electrically connected to the flexible circuit board.
12. The flexible backlight module as claimed in claim 11, wherein the flexible light-emitting film layer is divided into an upper end and a lower end, the light-emitting direction of the flexible light-emitting film layer is from the lower end to the upper end, and the flexible circuit board is located at the lower end of the flexible light-emitting film layer.
13. A liquid crystal display panel comprising the flexible backlight module of any one of claims 1-12.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010594560.XA CN111679502B (en) | 2020-06-28 | 2020-06-28 | Flexible backlight module and liquid crystal display panel |
| PCT/CN2020/111883 WO2022000744A1 (en) | 2020-06-28 | 2020-08-27 | Flexible backlight module and liquid crystal display panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010594560.XA CN111679502B (en) | 2020-06-28 | 2020-06-28 | Flexible backlight module and liquid crystal display panel |
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| CN111679502A CN111679502A (en) | 2020-09-18 |
| CN111679502B true CN111679502B (en) | 2021-07-23 |
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| CN114815378B (en) * | 2021-01-18 | 2024-04-16 | 重庆京东方光电科技有限公司 | Backlight module, display panel and display device |
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| WO2022000744A1 (en) | 2022-01-06 |
| CN111679502A (en) | 2020-09-18 |
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