CN116400534A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN116400534A CN116400534A CN202310645908.7A CN202310645908A CN116400534A CN 116400534 A CN116400534 A CN 116400534A CN 202310645908 A CN202310645908 A CN 202310645908A CN 116400534 A CN116400534 A CN 116400534A
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- back plate
- backboard
- support rod
- rod
- backlight module
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- 230000007306 turnover Effects 0.000 claims abstract description 11
- 239000012788 optical film Substances 0.000 claims description 9
- 239000004973 liquid crystal related substance Substances 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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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
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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
- G02F1/133608—Direct backlight including particular frames or supporting means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The application discloses backlight module and display device relates to the display field, and the backlight module includes first backplate, second backplate and first structure of turning over, first backplate is used for fixed lamp plate, the second backplate with first backplate stacks up the setting for fixed display panel, first structure of turning over is in first backplate with between the second backplate; the first backboard and the second backboard are connected through the first turnover structure so as to be opened or closed; through the design above, the backlight module can be disassembled and assembled independently, the lamp panel is prevented from being damaged by the whole machine, and the whole light efficiency is further ensured.
Description
Technical Field
The application relates to the technical field of display, in particular to a backlight module and a display device.
Background
Currently, in the field of liquid crystal display technology, liquid crystal display devices start to tend to adopt a borderless mode. The liquid crystal display device of the borderless mode has the following advantages: the display area of the liquid crystal display device is increased, and an ultra-wide view screen is realized; lighter and thinner than conventional liquid crystal display devices; the flat-panel television adopting the borderless liquid crystal display device has wider visual field on viewing experience, and particularly brings visual stimulus caused by frame removal when playing moving pictures. In order to achieve the effect of no frame of the liquid crystal display device, the frame structure needs to be omitted. The liquid crystal display device may include: after the outer frame is canceled, the display panel and the backlight module are bonded together through foam glue, so that the display panel and the die carrier are fixedly connected in a frame-free mode, and further the display panel and the backlight module are fixedly connected.
However, the defect is that the disassembly and reworking are very difficult when the lamp panel and the like in the backlight module of the traditional design are abnormal, the whole machine is required to be disassembled first, then the backlight module is disassembled, and the whole backlight module is irreversibly damaged when serious, so that the whole light efficiency is influenced.
Disclosure of Invention
The purpose of this application is to provide a but independent dismouting, avoids complete machine dismouting to damage the lamp plate, guarantees backlight unit and the display device of whole light efficiency.
The application discloses backlight module, including first backplate, second backplate and first structure of turning over, first backplate is used for fixed lamp plate, the second backplate with first backplate stacks the setting for fixed display panel, first structure of turning over sets up first backplate with between the second backplate; the first backboard and the second backboard are connected through the first turnover structure so as to be opened or closed.
Optionally, the backlight module further includes a second folding structure and a middle back plate for fixing the optical film, the middle back plate and the second folding structure are both disposed between the first back plate and the second back plate, and the middle back plate is connected with the first back plate and the second back plate through the second folding structure.
Optionally, the first structure of turning over includes rotary rod and first spring spare, first spring spare cover is established on the rotary rod, the one end of first backplate with the one end of second backplate is passed through the rotary rod is articulated fixedly, rotates the rotary rod, the second backplate uses the rotary rod is overturn as the centre of a circle.
Optionally, the second folding structure includes a first supporting piece and a second supporting piece, the first supporting piece is disposed between the second backboard and the middle backboard, one end of the first supporting piece is connected with the second backboard, and the other end of the first supporting rod is connected with the middle backboard; the second support piece is arranged between the first backboard and the middle backboard, one end of the second support piece is connected with the first backboard, and the other end of the second support piece is connected with the middle backboard; the rotating rod is rotated anticlockwise, the second backboard turns over in the direction away from the first backboard by taking the rotating rod as a circle center, and the first supporting piece and the second supporting piece are driven to move and then are spread so as to open the backlight module; the rotating rod is rotated clockwise, the second backboard turns over towards the direction close to the first backboard by taking the rotating rod as the circle center, and the first supporting piece and the second supporting piece are driven to move and then fold so as to close the backlight module.
Optionally, the backlight module further includes a driving device, where the driving device is disposed on one side of the first back plate or the second back plate, and the driving device is connected with the rotating rod and provides kinetic energy for the rotating rod.
Optionally, the first backboard, the middle backboard and the second backboard each include a first edge, a second edge, a third edge and a fourth edge, the first edge is opposite to the second edge, and the third edge is opposite to the fourth edge; the first support piece comprises a first support rod and a second support rod, the second support piece comprises a third support rod and a fourth support rod, the first support rod and the second support rod are arranged between the second backboard and the middle backboard in parallel, one end of the first support rod is rotatably connected with the third side of the second backboard, the other end of the first support rod is rotatably connected with the third side of the middle backboard, one end of the second support rod is rotatably connected with the fourth side of the second backboard, and the other end of the second support rod is rotatably connected with the fourth side of the middle backboard; the third support rod and the fourth support rod are arranged between the second backboard and the middle backboard in parallel, one end of the third support rod is in rotary connection with the third side of the second backboard, the other end of the third support rod is in rotary connection with the third side of the first backboard, one end of the fourth support rod is in rotary connection with the fourth side of the middle backboard, and the other end of the fourth support rod is in rotary connection with the fourth side of the first backboard.
Optionally, the middle back plate is provided with a first support rod placing groove corresponding to the first support rod, the first back plate is provided with a third support rod placing groove corresponding to the third support rod, and one end of the first support rod connected with the middle back plate is slidably connected with the first support rod placing groove; one end of the third support rod, which is connected with the first backboard, is connected with the third support rod placing groove in a sliding manner; the middle back plate is provided with a second support rod placing groove corresponding to the second support rod, the first back plate is provided with a fourth support rod placing groove corresponding to the fourth support rod, and one end, connected with the middle back plate, of the second support rod is in sliding connection with the second support rod placing groove; one end of the fourth supporting rod, which is connected with the first backboard, is slidably connected with the fourth supporting rod placing groove; the length of the first supporting rod placing groove is larger than that of the first supporting rod; the length of the second supporting rod placing groove is longer than that of the second supporting rod; the length of the third supporting rod placement groove is longer than that of the third supporting rod; the length of the fourth supporting rod placing groove is larger than that of the fourth supporting rod.
Optionally, the second folding structure further includes a second spring member and a third spring member, the second spring member is disposed at one end of the third support rod connected to the first back plate, and the third spring member is disposed at one end of the fourth support rod connected to the first back plate.
Optionally, the backlight module further includes a limiting structure, the limiting structure includes a first limiting part and a second limiting part, the first limiting part is disposed on one side of the first backboard, the second limiting part is disposed on one side of the second backboard, the first limiting part and the second limiting part are disposed correspondingly, and the first limiting part and the second limiting part are fastened and fixed.
The application also discloses a display device, including display panel and as above backlight unit, display panel sets up one side of backlight unit, backlight unit is for display panel provides the backlight.
Compared with the scheme that the whole machine is required to be dismantled when the lamp panel is abnormal in the prior art, and then the backlight module is dismantled, the backlight module comprises a first backboard, a second backboard and a first turnover structure, wherein the first backboard is used for fixing the lamp panel, the second backboard and the first backboard are stacked and arranged for fixing the display panel, and the first turnover structure is arranged between the first backboard and the second backboard; the first backboard and the second backboard are connected through the first turnover structure so as to be opened or closed; when the lamp plate in the backlight module is abnormal, the backlight module can be directly opened independently through the first folding structure, the lamp plate is inspected and maintained, and damage to other parts is reduced during disassembly, so that the overall light efficiency is ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive faculty for a person skilled in the art. In the drawings:
fig. 1 is a schematic structural view of a display device of the present application;
fig. 2 is a schematic view of the structure of the display device of the present application in an open state;
fig. 3 is a schematic structural diagram of an open state of a backlight module according to a first embodiment of the present disclosure;
fig. 4 is a schematic cross-sectional view of a first turndown structure according to a first embodiment of the present application;
FIG. 5 is an enlarged schematic view of a portion of area A of FIG. 3;
FIG. 6 is a schematic cross-sectional view of the connecting shaft of FIG. 5;
FIG. 7 is an enlarged partial schematic view of region C of FIG. 2;
FIG. 8 is a partially enlarged schematic illustration of region B of FIG. 3;
fig. 9 is a schematic structural diagram of a closed state of a backlight module according to a second embodiment of the present disclosure;
fig. 10 is a partially enlarged schematic view of region D in fig. 9.
10, a display device; 100. a backlight module; 110. a first back plate; 111. a third support bar placement groove; 112. a fourth supporting bar placing groove; 120. a second back plate; 130. a middle backboard; 131. a first support bar placement groove; 132. a second support bar placement groove; 140. a first fold-over structure; 141. a rotating rod; 142. a first spring member; 150. a second fold-over structure; 151. a first support; 152. a first support bar; 153. a second support bar; 154. a second support; 155. a third support bar; 156. a fourth support bar; 157. a second spring member; 158. a third spring member; 159. a connection part; 160. a fixing hole; 161. a connecting shaft; 170. a driving device; 180. a limit structure; 181. a first limiting member; 182. a second limiting piece; 200. an optical film; 300. a lamp panel; 400. a display panel; 20. a first edge; 30. a second side; 40. a third side; 50. fourth side.
Detailed Description
It should be understood that the terminology, specific structural and functional details disclosed herein are merely representative for purposes of describing particular embodiments, but that the application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or implicitly indicating the number of technical features indicated. Thus, unless otherwise indicated, features defining "first", "second" may include one or more such features either explicitly or implicitly; the meaning of "plurality" is two or more. In addition, terms of the azimuth or positional relationship indicated by "upper", "lower", "left", "right", "vertical", "horizontal", etc., are described based on the azimuth or relative positional relationship shown in the drawings, and are merely for convenience of description of the present application, and do not indicate that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
Fig. 1 is a schematic structural view of a display device of the present application, and fig. 2 is a schematic structural view of an open state of the display device of the present application, as shown in fig. 1-2, the present application discloses a display device 10, including a display panel 400 and a backlight module 100, wherein the display panel 400 is disposed on one side of the backlight module 100, and the backlight module 100 provides a backlight source for the display panel 400.
Specifically, fig. 3 is a schematic structural diagram of an open state of a backlight module according to a first embodiment of the present application, as shown in fig. 3, the backlight module 100 includes a first back plate 110, a second back plate 120, and a first folding structure 140, where the first back plate 110 is used for fixing a lamp panel 300, the second back plate 120 is stacked with the first back plate 110 and is used for fixing a display panel 400, and the first folding structure 140 is disposed between the first back plate 110 and the second back plate 120; the first back plate 110 and the second back plate 120 are connected by the first folding structure 140 to open or close.
Compared with the scheme that the whole machine needs to be removed first and then the backlight module 100 needs to be removed when the lamp panel 300 is abnormal in the prior art, the backlight module 100 of the application comprises a first backboard 110, a second backboard 120 and a first turnover structure 140, wherein the first backboard 110 is used for fixing the lamp panel 300, the second backboard 120 and the first backboard 110 are stacked and arranged for fixing the display panel 400, and the first turnover structure 140 is arranged between the first backboard 110 and the second backboard 120; wherein the first back plate 110 and the second back plate 120 are connected by the first folding structure 140 to be opened or closed; therefore, when the lamp panel 300 in the backlight module 100 is abnormal, the backlight module 100 can be opened independently through the first folding structure 140, the lamp panel 300 is correspondingly checked and maintained, and damage to other components during disassembly is reduced, so that the overall lighting effect is ensured.
Wherein the second back plate 120 can be used for fixing the optical film 200 and the display panel 400 at the same time; of course, it is also possible to fix only the display panel 400, and when only the display panel 400 is fixed, the middle back plate 130 may be additionally added for fixing the optical film 200.
The present application is described in detail below with reference to the attached drawings and alternative embodiments.
Embodiment one:
fig. 4 is a schematic cross-sectional structure of a first folding structure provided in the first embodiment of the present application, as shown in fig. 4, the first folding structure 140 includes a rotating rod 141 and a first spring member 142, the first spring member 142 is sleeved on the rotating rod 141, one end of the first back plate 110 and one end of the second back plate 120 are hinged and fixed by the rotating rod 141, the rotating rod 141 is rotated, and the second back plate 120 can turn over by taking the rotating rod 141 as a center of a circle. The arrow direction in the drawing is the rotatable direction of the rotating rod 141, when the rotating rod 141 rotates anticlockwise, the second back plate 120 rotates to open in a direction away from the first back plate 110, the light plate 300 fixed on the first back plate 110 is exposed, so that maintenance and repair can be performed on the light plate 300, and when the maintenance and repair are completed, the rotating rod 141 is rotated clockwise again, and then the second back plate 120 rotates to close in a direction close to the first back plate 110.
When the rotating rod 141 rotates anticlockwise, the controllable rotation torque force is larger, so that the second back plate 120 and the first back plate 110 are opened, and the first spring member 142 can play a certain resistance role on the rotating rod 141, so that the speed of the second back plate 120 after rotating when opening can be relatively stable, and the risk of falling off caused by overlarge impact force of the second back plate 120 when opening under the action of the rotating force and the elastic force is avoided; the second back plate 120 and the first back plate 110 are closed, so that the rotation speed can be controlled to be relatively slow, and a better balance is achieved, so that the second back plate 120 is prevented from colliding with the first back plate 110 when being closed, and the lamp panel 300 or the optical film 200 is prevented from being damaged.
A driving device 170 may be disposed on one side of the first back plate 110 or the second back plate 120, the driving device 170 is connected to the rotating rod 141 to provide kinetic energy for the rotating rod 141, so that the driving device 170 may be controlled to rotate the rotating rod 141, so as to realize intelligent management of opening or closing of the backlight module 100. Specifically, the driving device 170 may include a motor and a driving rod, the motor is connected to the rotating rod 141 through the driving rod, and the driving rod drives the rotating rod 141 to rotate after the motor is started.
Referring to fig. 2-4, the backlight module 100 further includes a second folding structure 150 and a middle back plate 130 for fixing the optical film 200, wherein the middle back plate 130 and the second folding structure 150 are disposed between the first back plate 110 and the second back plate 120, and the middle back plate 130 is connected with the first back plate 110 and the second back plate 120 through the second folding structure 150. When the second back plate 120 is opened by the first folding structure 140, the middle back plate 130 may be opened by driving the second folding structure 150.
The middle back plate 130 and the second back plate 120 are both frame structures with hollow middle parts, the lamp panel 300 is mounted on the first back plate 110 to form a direct type light source, and the light source of the lamp panel 300 is directly directed to the direction of the display panel 400 after the optical film 200 is mounted and fixed with the display panel 400. The first back plate 110, the middle back plate 130, and the second back plate 120 each include a first edge 20, a second edge 30, a third edge 40, and a fourth edge 50, where the first edge 20 is disposed opposite to the third edge 40, and the second edge 30 is disposed opposite to the fourth edge 50. The second folding structure 150 is connected to the third side 40 of the second back plate 120 and the third side 40 of the first back plate 110, and connected to the fourth side 50 of the second back plate 120 and the fourth side 50 of the first back plate 110.
Specifically, the second folding structure 150 includes a first supporting member 151 and a second supporting member 154, where the first supporting member 151 is disposed between the second backboard 120 and the middle backboard 130, one end of the first supporting member 151 is connected with the second backboard 120, and the other end of the first supporting member 151 is connected with the middle backboard 130; the second supporting member 154 is disposed between the first back plate 110 and the middle back plate 130, one end of the second supporting member 154 is connected with the first back plate 110, and the other end of the second supporting member 154 is connected with the middle back plate 130;
rotating the rotating rod 141 counterclockwise, the second back plate 120 turns around the rotating rod 141 in a direction away from the first back plate 110, and drives the first supporting member 151 and the second supporting member 154 to move and then open so as to open the backlight module 100;
the rotating rod 141 is rotated clockwise, the second back plate 120 turns over in a direction approaching to the first back plate 110 with the rotating rod 141 as a center of a circle, and drives the first supporting member 151 and the second supporting member 154 to move and then fold, so as to close the backlight module 100.
As shown in fig. 4, in order to make the middle backplate 130 stable after being opened, the first support member 151 includes a first support rod 152 and a second support rod 153, the second support member 154 includes a third support rod 155 and a fourth support rod 156, the first support rod 152 and the second support rod 153 are disposed between the second backplate 120 and the middle backplate 130 in parallel, one end of the first support rod 152 is rotatably connected to the third side 40 of the second backplate 120, the other end of the first support rod 152 is rotatably connected to the third side 40 of the middle backplate 130, one end of the second support rod 153 is rotatably connected to the fourth side 50 of the second backplate 120, and the other end of the second support rod 153 is rotatably connected to the fourth side 50 of the middle backplate 130;
the third support rod 155 and the fourth support rod 156 are arranged between the second back plate 120 and the middle back plate 130 in parallel, one end of the third support rod 155 is rotatably connected with the third side 40 of the second back plate 120, the other end of the third support rod 155 is rotatably connected with the third side 40 of the first back plate 110, one end of the fourth support rod 156 is rotatably connected with the fourth side 50 of the middle back plate 130, and the other end of the fourth support rod 156 is rotatably connected with the fourth side 50 of the first back plate 110.
In this way, a balanced and stable supporting structure is formed between the two sides of the middle back plate 130 and the first back plate 110 and the second back plate 120, when the second back plate 120 is opened, the first supporting rod 152 and the third supporting rod 155 are driven to move upwards, and then the second supporting rod 153 and the fourth supporting rod 156 are driven to move upwards until the whole middle back plate 130 is opened upwards, and at this time, the whole backlight module 100 is in an opened state.
Fig. 5 is a schematic enlarged view of a portion of the area a in fig. 3, as shown in fig. 3, in combination with fig. 5, in order to make the middle backplate 130 more stable after being opened, the third side 40 of the second backplate 120 is provided with a fixed connection portion 159, the connection portion 159 is provided with a fixing hole 160, one end of the first support rod 152 may rotate left and right along the fixing hole 160 as a center of a circle after being connected with the fixing hole 160 through a connection shaft 161, and similarly, one end of the second support rod 153 connected with the middle backplate 130 is also the connection structure described above, and one end of the third support rod 155 connected with the second backplate 120 and one end of the fourth support rod 156 connected with the middle backplate 130 are both the connection structures described above. This ensures that one end of each of the first, second, third and fourth support bars 152, 153, 155 and 156 can be maintained in a fixed state.
Fig. 6 is a schematic cross-sectional structure of the connecting shaft 161 in fig. 5, as shown in fig. 6, and referring to fig. 5, the connecting shaft 161 may have a structure in which protrusions are uniformly formed on the periphery, and the outer surface of the protrusions, which contacts the fixing hole 160, may have a concave-convex surface, so that friction force between the connecting shaft 161 and the fixing hole 160 when rotating can be increased, and the middle backplate 130 has a certain resistance when being opened, so that impact is not caused to the second backplate 120.
Since the backlight module 100 is an important component that can be normally used in the whole display device 10, the backlight module has an important effect on the overall light efficiency of the display device 10, and after the middle back plate 130 is added, when the second back plate 120, the middle back plate 130 and the first back plate 110 are closed by the second folding structure 150 after folding, the second folding structure 150 needs to be designed to be hidden after folding, so that on one hand, the optical film 200 or the lamp panel 300 is prevented from being damaged due to the existence of the second folding structure 150; on the other hand, the flatness of the whole backlight module 100 is ensured.
FIG. 7 is an enlarged partial schematic view of region C of FIG. 2; as shown in fig. 7, as can be seen from fig. 2 to 3, the middle back plate 130 is provided with a first support rod placement groove 131 corresponding to the first support rod 152, the first back plate 110 is provided with a third support rod placement groove 111 corresponding to the third support rod 155, and one end of the first support rod 152 connected with the middle back plate 130 is slidably connected with the first support rod placement groove 131; one end of the third supporting bar 155 connected to the first back plate 110 is slidably connected to the third supporting bar receiving groove 111;
the middle back plate 130 is provided with a second support rod placement groove 132 corresponding to the second support rod 153, the first back plate 110 is provided with a fourth support rod placement groove 112 corresponding to the fourth support rod 156, and one end of the second support rod 153 connected with the middle back plate 130 is slidably connected with the second support rod placement groove 132; one end of the fourth support bar 156 connected to the first back plate 110 is slidably connected to the fourth support bar placement groove 112;
that is, the end of the first support rod 152 connected to the middle back plate 130 may rotate in the first support rod receiving groove 131 or may slide in the first support rod receiving groove 131; one end of the second support bar 153 connected to the middle back plate 130 may either rotate in the second support bar receiving groove 132 or slide in the second support bar receiving groove 132; the end of the third supporting bar 155 connected to the first back plate 110 may be rotated in the third supporting bar receiving groove 111 or may be slid in the third supporting bar receiving groove 111; the end of the fourth support bar 156 connected to the first back plate 110 may either rotate in the fourth support bar receiving groove 112 or slide in the fourth support bar receiving groove 112. In addition, when the backlight module 100 is in an opened state, the first support rod placement groove 131 and the third support rod placement groove 111 have a through groove structure at one end facing the second back plate 120, so that the folding and storage of the first support rod 152 and the third support rod 155 are not affected during the folding process of the middle back plate 130 and the second back plate 120.
Specifically, when the driving device 170 is controlled to drive the rotating rod 141 to rotate clockwise, the end, connected to the second back plate 120, of the first support rod 152 gradually rotates, and drives the end, connected to the first back plate 152, to slide to a certain distance in a direction close to the middle back plate 130, of the first support rod 152, after the end, connected to the middle back plate 130, of the first support rod 152 rotates clockwise by approximately 180 ° again, under the action of the rotating force of the second back plate 120, the end, connected to the middle back plate 130, of the first support rod 152 is pushed to slide in a direction far away from the second back plate 120, at this time, the first support rod 152 is continuously folded, the first support rod 152 moves while moving, drives the third support rod 155, and the end, connected to the third support rod 155, slides in a direction close to the first back plate 110 in the third support rod placing groove 111, and the middle back plate 130 continues to fold downwards, and the whole first support rod 152 is placed in the first support rod placing groove 131, and the third support rod 155 is placed in the third back plate 130, and the first back plate 120 is closed, and the back plate 130 is placed in the first back plate 120.
Similarly, the second support bar 153 is folded in the same manner as the first support bar 152; the fourth support bar 156 is folded in the same manner as the third support bar 155.
And when the driving means 170 is controlled to drive the rotating lever 141 to rotate counterclockwise, the first, second, third and fourth supporting bars 152, 153, 155 and 156 move in opposite directions to open the first, middle and second back plates 110, 130 and 120.
Wherein, the length of the first supporting bar placing groove 131 is greater than the length of the first supporting bar 152; the length of the second supporting bar receiving groove 132 is greater than the length of the second supporting bar 153; the length of the third supporting bar receiving groove 111 is greater than the length of the third supporting bar 155; the length of the fourth supporting bar receiving groove 112 is greater than the length of the fourth supporting bar 156. Thus, after folding, there is enough space for placing the first support rod 152, the second support rod 153, the third support rod 155 and the fourth support rod 156, and the connection portion 159 of the first support rod 152 and the second back plate 120, the connection portion 159 of the second support rod 153 and the second back plate 120, the connection portion 159 of the third support rod 155 and the middle back plate 130, and the connection portion 159 of the fourth support rod 156 and the middle back plate 130 are placed in the corresponding placing grooves after folding, so as to ensure the overall flatness of the backlight module 100.
In addition, fig. 8 is an enlarged partial view of the area B in fig. 3, and as shown in fig. 8, in combination with fig. 3, the second folding structure 150 further includes a second spring member 157 and a third spring member 158, where the second spring member 157 is disposed at an end of the third support bar 155 connected to the first back plate 110, and the second spring member 157 is disposed at an end of the fourth support bar 156 connected to the first back plate 110. Because the second folding structure 150 is in the process of opening, the first supporting rod 152, the second supporting rod 153, the third supporting rod 155 and the fourth supporting rod 156 drive the middle back plate 130 to open upwards and towards the direction of the second back plate 120, the first supporting rod 152 and the second supporting rod 153 pull the middle back plate 130 towards the direction of the second back plate 120, the third supporting rod 155 and the fourth supporting rod 156 also have a force to push the middle back plate 130 towards the direction close to the second back plate 120, the connecting end part of each supporting rod is rotatable, and the middle back plate 130 has a force to impact the second back plate 120 under the cooperation of the first supporting rod 152, the second supporting rod 153, the third supporting rod 155 and the fourth supporting rod 156 in the opening movement, so the second spring member 157 is arranged to play a resistance role on the third supporting rod 155 when opening, the third spring member 158 can play a resistance role on the fourth supporting rod 156, and meanwhile, the middle back plate 130 is prevented from being bumped against the second back plate 120 in the opening process, and even damaging the second back plate 120.
Embodiment two:
fig. 9 is a schematic structural view of a closed state of a backlight module according to a second embodiment of the present application, and fig. 10 is a partially enlarged schematic view of a D area in fig. 9, as shown in fig. 9-10, as a second embodiment of the present application, the second embodiment of the present application is different from the first embodiment in implementation, the backlight module 100 does not have a driving device, but includes a first limiting member 181 and a second limiting member 182 through a limiting structure 180, the first limiting member 181 is disposed on one side of the first back plate 110 and is hinged to the first back plate 110, the second limiting member 182 is disposed on one side of the second back plate 120, the first limiting member 181 is disposed corresponding to the second limiting member 182, and the first limiting member 181 is engaged with the second limiting member 182. At this time, the backlight module 100 may be opened or closed manually to perform repair and maintenance of the internal components. Thus, the setting of the driving device 170 can be reduced, the kinetic energy is not needed, and the environmental protection effect is achieved.
The limiting structure 180 may be a pressing type, where the first limiting member 181 is fastened with the second limiting member, the first limiting member 181 is pressed, the second limiting member 182 is separated from the first limiting member, and then the backlight module 100 is opened, and components that are overhauled according to specific needs are overhauled. Because the backlight module 100 is relatively fragile in material, the opening force can be relatively reduced by adopting the pressing type structure, so that the backlight module 100 is prevented from being damaged.
It should be noted that, the inventive concept of the present application may form a very large number of embodiments, but the application documents have limited space and cannot be listed one by one, so that on the premise of no conflict, the above-described embodiments or technical features may be arbitrarily combined to form new embodiments, and after the embodiments or technical features are combined, the original technical effects will be enhanced.
Claims (10)
1. A backlight module, comprising:
the first backboard is used for fixing the lamp panel;
the second backboard is stacked with the first backboard and used for fixing the display panel; and
the first turnover structure is arranged between the first backboard and the second backboard;
the first backboard and the second backboard are connected through the first turnover structure so as to be opened or closed.
2. The backlight module according to claim 1, further comprising a second fold-over structure and a middle back plate for fixing the optical film, wherein the middle back plate and the second fold-over structure are both disposed between the first back plate and the second back plate, and the middle back plate is connected with the first back plate and the second back plate through the second fold-over structure.
3. The backlight module according to claim 2, wherein the first folding structure comprises a rotating rod and a first spring member, the first spring member is sleeved on the rotating rod, one end of the first backboard is hinged and fixed with one end of the second backboard through the rotating rod, and the second backboard can turn around the rotating rod as a circle center.
4. A backlight module according to claim 3, wherein the second turnover structure comprises a first support member and a second support member, the first support member is disposed between the second back plate and the middle back plate, one end of the first support member is connected with the second back plate, and the other end of the first support member is connected with the middle back plate; the second support piece is arranged between the first backboard and the middle backboard, one end of the second support piece is connected with the first backboard, and the other end of the second support piece is connected with the middle backboard.
5. A backlight module according to claim 3, further comprising a driving device disposed on one side of the first back plate or the second back plate, wherein the driving device is connected to the rotating rod to provide kinetic energy to the rotating rod.
6. The backlight module of claim 4, wherein the first back plate, the middle back plate, and the second back plate each comprise a first edge, a second edge, a third edge, and a fourth edge, the first edge being disposed opposite the second edge, the third edge being disposed opposite the fourth edge;
the first support piece comprises a first support rod and a second support rod, the second support piece comprises a third support rod and a fourth support rod, the first support rod and the second support rod are arranged between the second backboard and the middle backboard in parallel, one end of the first support rod is rotatably connected with the third side of the second backboard, the other end of the first support rod is rotatably connected with the third side of the middle backboard, one end of the second support rod is rotatably connected with the fourth side of the second backboard, and the other end of the second support rod is rotatably connected with the fourth side of the middle backboard;
the third support rod and the fourth support rod are arranged between the second backboard and the middle backboard in parallel, one end of the third support rod is in rotary connection with the third side of the second backboard, the other end of the third support rod is in rotary connection with the third side of the first backboard, one end of the fourth support rod is in rotary connection with the fourth side of the middle backboard, and the other end of the fourth support rod is in rotary connection with the fourth side of the first backboard.
7. The backlight module according to claim 6, wherein the middle back plate is provided with a first support rod placement groove corresponding to the first support rod, the first back plate is provided with a third support rod placement groove corresponding to the third support rod, and one end of the first support rod connected with the middle back plate is slidably connected with the first support rod placement groove; one end of the third support rod, which is connected with the first backboard, is connected with the third support rod placing groove in a sliding manner;
the middle back plate is provided with a second support rod placing groove corresponding to the second support rod, the first back plate is provided with a fourth support rod placing groove corresponding to the fourth support rod, and one end, connected with the middle back plate, of the second support rod is in sliding connection with the second support rod placing groove; one end of the fourth supporting rod, which is connected with the first backboard, is slidably connected with the fourth supporting rod placing groove;
the length of the first supporting rod placing groove is larger than that of the first supporting rod; the length of the second supporting rod placing groove is longer than that of the second supporting rod; the length of the third supporting rod placement groove is longer than that of the third supporting rod; the length of the fourth supporting rod placing groove is larger than that of the fourth supporting rod.
8. The backlight module according to claim 6, wherein the second folding structure further comprises a second spring member and a third spring member, the second spring member is disposed at an end of the third support rod connected to the first back plate, and the third spring member is disposed at an end of the fourth support rod connected to the first back plate.
9. A backlight module according to claim 3, further comprising a limiting structure, wherein the limiting structure comprises a first limiting member and a second limiting member, the first limiting member is disposed on one side of the first back plate, the second limiting member is disposed on one side of the second back plate, the first limiting member and the second limiting member are disposed correspondingly, and the first limiting member and the second limiting member are fastened and fixed.
10. A display device comprising a display panel and a backlight module according to any one of claims 1-9, the display panel being arranged on one side of the backlight module, the backlight module providing a backlight for the display panel.
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| CN202310645908.7A CN116400534B (en) | 2023-06-02 | 2023-06-02 | Backlight module and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310645908.7A CN116400534B (en) | 2023-06-02 | 2023-06-02 | Backlight module and display device |
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| CN116400534B CN116400534B (en) | 2023-08-25 |
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|---|---|---|---|---|
| JP2001125072A (en) * | 1999-10-25 | 2001-05-11 | Digital Electronics Corp | Liquid crystal display device |
| CN101295087A (en) * | 2007-04-25 | 2008-10-29 | 群康科技(深圳)有限公司 | LCD device |
| CN101661172A (en) * | 2008-08-29 | 2010-03-03 | 欧睿电通股份有限公司 | Liquid crystal display (LCD) device capable of being maintained conveniently and quickly |
| CN204604292U (en) * | 2015-05-14 | 2015-09-02 | 国家电网公司 | Novel multi-layer electrical tool case |
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2023
- 2023-06-02 CN CN202310645908.7A patent/CN116400534B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001125072A (en) * | 1999-10-25 | 2001-05-11 | Digital Electronics Corp | Liquid crystal display device |
| CN101295087A (en) * | 2007-04-25 | 2008-10-29 | 群康科技(深圳)有限公司 | LCD device |
| CN101661172A (en) * | 2008-08-29 | 2010-03-03 | 欧睿电通股份有限公司 | Liquid crystal display (LCD) device capable of being maintained conveniently and quickly |
| CN204604292U (en) * | 2015-05-14 | 2015-09-02 | 国家电网公司 | Novel multi-layer electrical tool case |
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| CN116400534B (en) | 2023-08-25 |
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