CN110673375B - Ultrathin double-sided display screen - Google Patents
Ultrathin double-sided display screen Download PDFInfo
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- CN110673375B CN110673375B CN201910984293.4A CN201910984293A CN110673375B CN 110673375 B CN110673375 B CN 110673375B CN 201910984293 A CN201910984293 A CN 201910984293A CN 110673375 B CN110673375 B CN 110673375B
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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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
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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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
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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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- 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
- G02F1/133342—Constructional arrangements; Manufacturing methods for double-sided displays
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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
- G02F1/133628—Illuminating devices with cooling means
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
Abstract
An ultra-thin, double-sided display screen, comprising: two lamp strip cooling fins; the first connecting plate is used for transversely connecting the two lamp strip radiating fins; the two light guide plates are respectively arranged in front of and behind the two light bar radiating fins; the two light bars are respectively arranged on the light bar radiating fins and are positioned on one side of each light guide plate; two liquid crystal panels respectively arranged in front of and behind the two light guide plates; and the two front frames cover the side edge of the liquid crystal panel and are fixed with the light bar radiating fins. According to the ultrathin double-sided display screen, the light guide plate and the liquid crystal panel are sequentially arranged on the light bar radiating fin, the front frame covers the side edge of the liquid crystal panel, and the light guide plate and the liquid crystal panel are fixed between the front frame and the light bar radiating fin by fixing the front frame and the light bar radiating fin, so that the assembly mode is very compact, and the thickness of the display screen can be greatly reduced.
Description
Technical Field
The present invention relates to a display screen.
Background
In the prior art, a double-sided display screen is generally formed by mutually and oppositely stacking two complete displays, each display adopts independent and complete assembly, and the double-sided display screen formed by simply and mutually stacking and assembling the displays has larger thickness, so that the double-sided display screen has huge volume and occupies a large amount of space.
Disclosure of Invention
An object of the present invention is to provide an ultra-thin double-sided display screen to solve the above problems.
According to an aspect of the present invention, there is provided an ultra-thin double-sided display screen, including:
two lamp strip cooling fins;
the first connecting plate is used for transversely connecting the two lamp strip radiating fins;
the two light guide plates are respectively arranged in front of and behind the two light bar radiating fins;
the two light bars are respectively arranged on the light bar radiating fins and are positioned on one side of each light guide plate;
two liquid crystal panels respectively arranged in front of and behind the two light guide plates;
and the two front frames cover the side edge of the liquid crystal panel and are fixed with the light bar radiating fins.
According to the ultrathin double-sided display screen, the light guide plate and the liquid crystal panel are sequentially arranged on the light bar radiating fin, the front frame covers the side edge of the liquid crystal panel, and the light guide plate and the liquid crystal panel are fixed between the front frame and the light bar radiating fin by fixing the front frame and the light bar radiating fin, so that the assembly mode is very compact, and the thickness of the display screen can be greatly reduced.
In some embodiments of the present invention, the substrate is,
each light bar radiating fin extends longitudinally, and the outer edge of each light bar radiating fin extends forwards and backwards along the thickness direction to form a first flange and a second flange respectively;
the two sides of each light guide plate are respectively arranged on the first flange of one light bar radiating fin and the second flange of the other light bar radiating fin.
From this, through having first flange and the second flange that extends to the place ahead and rear respectively with the design of lamp strip fin, can install two light guide plates respectively in the place ahead and the rear of lamp strip fin, the first flange and the second flange of every lamp strip fin can provide assembly structure for two light guide plates in front and back respectively, and this kind of mounting means is very compact, can further reduce display screen thickness.
In some embodiments of the present invention, the substrate is,
two sides of each liquid crystal panel are respectively arranged on the first flange of one light bar radiating fin and the second flange of the other light bar radiating fin.
From this, first flange and the second flange through lamp strip fin provide assembly structure for two blocks of liquid crystal display panels in front and back respectively, realize liquid crystal display panel's compact assembly, can further reduce display screen thickness.
In some embodiments, further comprising:
two middle frames, which are shaped into a three-side frame capable of covering the top edge, the bottom edge and one of the side edges of the light guide plate, and the inner sides of the two middle frames form a first groove for accommodating the light guide plate;
a second groove for accommodating the lamp strip and the light guide plate is formed on the inner side of the second flange of the lamp strip radiating fin;
a third recess for accommodating the middle frame is formed on the inner side of the first flange of the light bar radiating fin;
the first side edge of the light guide plate is arranged in the first groove of the middle frame and is arranged in the third recess of the first flange of one light bar radiating fin through the middle frame; the second side edge of the light guide plate is arranged in a second groove of a second flange of the other light bar radiating fin, and the light bar is arranged in the second groove to be close to the second side edge of the light guide plate; the top edge and the bottom edge of the light guide plate are arranged in the first groove of the middle frame.
From this, through inserting the light guide plate in the first recess of center to and with the light guide plate and the center card income lamp strip fin, can realize the assembly of light guide plate, replaced traditional front installation and added the mode of screw fixation light guide plate, can further reduce the thickness of display screen.
In some embodiments of the present invention, the substrate is,
the inner side of the middle frame is also provided with a first recess for accommodating the liquid crystal panel;
a second recess for accommodating the liquid crystal panel is formed on the inner side of the second flange of the light bar radiating fin;
the first side edge of the liquid crystal panel is arranged in the first recess and is arranged in a third recess of the first flange of one light bar radiating fin through the middle frame; the second side edge of the liquid crystal panel is arranged in a second recess of a second flange of the other light bar radiating fin; the top and bottom edges of the liquid crystal panel are disposed in the first recess of the middle frame.
Therefore, the liquid crystal panel is accommodated in the middle frame to realize assembly, the thickness of the display screen can be further reduced, and the assembly efficiency is increased.
In some embodiments, further comprising:
the two frames are respectively connected with the top and the bottom of the light bar radiating fin and can cover the top edge and the bottom edge of the light guide plate and the liquid crystal panel;
the front frame is a four-sided frame, which also covers the top and bottom edges of the liquid crystal panel and is fixed with the bezel.
From this, set gradually light guide plate and LCD panel on lamp strip radiator to cover preceding frame on LCD panel's topside and base, through fixed with preceding frame and frame, make light guide plate and LCD panel fix between preceding frame and frame, similar with the side assembly mode of light guide plate and LCD panel, further realized the assembly on the topside and the base of light guide plate and LCD panel, assembly mode is very compact, can the greatly reduced display screen thickness.
In some embodiments, further comprising:
the two second connecting plates are respectively and transversely connected between the tops and the bottoms of the two light bar radiating fins;
two frames are connected with the top and the bottom of two second connecting plates respectively to make the frame pass through the second connecting plate and be connected with the lamp strip fin.
From this, realize being connected between frame and the lamp strip fin through the second connecting plate, can fix inner structure better for the display screen is convenient for install more.
In some embodiments of the present invention, the substrate is,
the longitudinal section of the front frame is L-shaped so as to cover the frame and the liquid crystal panel; the inner surface of the front frame and the outer surface of the side frame are respectively provided with a first clamping structure which is matched with the inner surface of the front frame, and the front frame is clamped with the side frame through the first clamping structure;
the transverse section of the front frame is L-shaped so as to cover the light bar radiating fins and the liquid crystal panel; the inner surface of the front frame and the outer surface of the light bar radiating fin are respectively provided with a second clamping structure which is matched with the front frame, and the front frame is clamped with the light bar radiating fin through the second clamping structure.
From this, through the first block structure of preceding frame and frame, the second block structure of preceding frame and lamp strip fin for the preceding frame is fixed light guide plate and liquid crystal display panel inside frame and lamp strip fin through the mode of block, compares the mode that relies on screw assembly completely, can reduce the screw quantity, thereby can reduce thickness, also can increase assembly efficiency.
In some embodiments, further comprising: and the outer frame is fixed around the frame and the light bar radiating fins.
This can increase the structural stability of the display panel.
In some embodiments, further comprising: the control box body is fixed at the top of the outer frame, and the suspension component is arranged at the top of the control box body;
or the control box body is fixed at the bottom of the outer frame, and the support legs are arranged at the bottom of the control box body.
Therefore, the display screen is convenient to mount and use.
Drawings
FIG. 1 is a front view of an ultra-thin double-sided display screen of the present invention;
FIG. 2 is an exploded view of an ultra-thin double-sided display panel of the present invention;
FIG. 3 is an exploded view of the light bar heat sink, the bezel, the first connecting plate and the second connecting plate of the present invention;
FIG. 4 is a cross-sectional view of a light bar heat sink of the present invention;
FIG. 5 is a cross-sectional view taken at B-B of FIG. 1;
FIG. 6 is a schematic view of the installation of the light guide plate and the middle frame according to the present invention;
fig. 7 is a cross-sectional view taken at a-a of fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the invention, the placement mode of the ultrathin double-sided display screen in use is taken as a reference, the transverse direction, the longitudinal direction and the thickness direction are taken as three-dimensional coordinate directions, two sides refer to the left side and the right side in the transverse direction, the top and the bottom refer to the upper end and the lower end in the longitudinal direction respectively, and the front side and the rear side refer to the front-back direction in the thickness direction.
Fig. 1 and 2 schematically show an ultra-thin double-sided display panel (hereinafter referred to as a display panel) according to an embodiment of the present invention, which includes a light bar heat sink 1, a first connection plate 21, a light guide plate 31, a light bar 32, a liquid crystal panel 4, a middle frame 51, a second connection plate 22, a side frame 52, a front frame 53, an outer frame 6, a control box 7, and a suspension member.
As shown in fig. 3 to 5, the light bar heat sink 1 has two pieces, each light bar 32 extends in the longitudinal direction, and the outer edges of the light bar heat sink 1 extend in the front and rear directions of the thickness direction of the display screen to form a first flange 11 and a second flange 12, respectively. The inner side edges of the two light bar radiating fins 1 are respectively connected with the two sides of the first connecting plate 21 and the two second connecting plates 22, so that the two light bar radiating fins 1 are transversely connected. Wherein first connecting plate 21 transverse connection is in the central authorities of two lamp strip fin 1, and two second connecting plate 22 transverse connection are respectively between the top of two lamp strip fins 1 and between the bottom. Preferably, the two light bar cooling fins 1 are respectively located in front of and behind the first connecting plate 21 and the second connecting plate 22, forming a stable structure clamped in front and back. And the second flange 12 of the first light bar heat sink 1 is opposite to the first flange 11 of the second light bar heat sink 1 from left to right for accommodating a corresponding group of light guide plates 31 and liquid crystal panels 4, and the second flange 12 of the second light bar heat sink 1 is opposite to the first flange 11 of the first light bar heat sink 1 from left to right for accommodating another corresponding group of light guide plates 31 and liquid crystal panels 4. Preferably, the inner side of the second flange 12 forms a second groove 121 for accommodating the light bar 32 and the light guide plate 31, and a second recess 122 for accommodating the liquid crystal panel 4. In the present invention, the "groove" means a "U" shaped groove with three closed sides and one open side, and the "recess" means an "L" shaped recess with two closed sides and two open sides, and the mounting effect is different. The second groove 121 is a groove with an inward opening, so that the light bar 32 and the light guide plate 31 are fixed. The second recess 122 is a recess with an opening facing inward and facing forward (or backward) to facilitate the mounting of the liquid crystal panel 4. The inner side of the first flange 11 forms a third recess 111 for accommodating the middle frame 51, and the third recess 111 is a recess opened inward and facing forward (or rearward) to facilitate the installation of the middle frame 51. The outer side of the light bar radiating fin 1 is also provided with a third groove 13 for accommodating the outer frame 6.
As shown in fig. 3, the first connection plate 21 is also used for mounting driving components of the liquid crystal panel 4. The second connecting plate 22 is also used for mounting the frame 52.
As shown in fig. 5 and 7, the middle frame 51 has two parts, and is shaped as a three-sided frame, and covers the top edge, the bottom edge, and one side edge of the light guide plate 31, respectively, and the inner side of the middle frame 51 forms a first groove 511 for accommodating the light guide plate 31, so that the light guide plate 31 can be inserted into the middle frame 51 and fixed when being installed, as shown in fig. 6. Further, the inner side of the middle frame 51 also forms a first recess 512 for accommodating the liquid crystal panel 4. The side of the middle frame 51 is disposed in the third recess 111 of the first flange 11.
As shown in FIG. 7, the two side frames 52 are in a bar-shaped structure, one side frame 52 is fixed above the top second connecting plate 22 and covers the top edge of the middle frame 51, and the other side frame 52 is fixed below the bottom second connecting plate 22 and covers the bottom edge of the middle frame 51. The side frame 52 extends forward and backward in the thickness direction to form a symmetrical third flange 521, and the inner surface of the third flange 521 is further provided with a fourth recess 522 for accommodating the middle frame 51, and the opening of the fourth recess 522 faces inward and faces forward (or backward). The outer surface of the frame 52 is further provided with a fourth recess 523 for receiving the outer frame 6.
As shown in fig. 5, two light bars 32 are longitudinally fixed in the second grooves 121 of the light bar heat sink 1.
As shown in fig. 5, the light guide plate 31 has two light guide plates, which are respectively disposed in front of the first light bar heat sink 1 and behind the second light bar heat sink 1. The first side edge of each light guide plate 31 is disposed in the first groove 511 of the middle frame 51, and is disposed in the third recess 111 of the first flange 11 of the light bar heat sink 1 through the middle frame 51. The second side edge of each light guide plate 31 is disposed in the second groove 121 of the light heat sink 1 and close to the light bar 32, so that light from the light bar 32 is diffused through the light guide plate 31, and is converted from a linear light source of the light bar 32 to a surface light source of the light guide plate 31, thereby providing a backlight source for the liquid crystal panel 4.
As shown in fig. 5, the liquid crystal panel 4 has two liquid crystal panels, which are respectively disposed in front of and behind the corresponding light guide plate 31, so that the light source of the light guide plate 31 is emitted through the liquid crystal panel 4. The first side of each liquid crystal panel 4 is disposed at the first recess 512 of the middle frame 51, and is disposed in the third recess 111 of the first flange 11 of the light bar heat sink 1 through the middle frame 51. The second side of each liquid crystal panel 4 is disposed in the second recess 122 of the second flange 12 of the light bar heat sink 1.
As shown in fig. 5 and 7, the front frame 53 has two, which are four-sided frames, and each front frame 53 may be further divided into two sub-frames each of which is a three-sided frame with the longitudinal center line as a symmetrical reference, thereby facilitating installation. The longitudinal section of the front frame 53 is "L" shaped to cover the side frame 52 and the liquid crystal panel 4, and the inner surface of the front frame 53 and the outer surface of the side frame 52 are respectively provided with a first engaging structure 81 which is adapted to the inner surface, the first engaging structure 81 can adopt a structure of a groove and a protrusion, the top edge and the bottom edge of the front frame 53 respectively cover the side frame 52 and the liquid crystal panel 4, and the liquid crystal panel 4 can be fixed with the side frame 52 by engaging the front frame 53 with the side frame 52. Similarly, the transverse section of the front frame 53 is "L" shaped to cover the light bar heat sink 1 and the liquid crystal panel 4, and the inner surface of the front frame 53 and the outer surface of the light bar heat sink 1 are respectively provided with the second engaging structure 82 in a matching manner, the second engaging structure 82 can adopt a groove and a protrusion structure, two side edges of the front frame 53 respectively cover the light bar heat sink 1 and the liquid crystal panel 4, and the liquid crystal panel 4 can be fixed with the light bar heat sink 1 by engaging the front frame 53 with the light bar heat sink 1. In this scheme, the front frame 53 is engaged with the frame 52 at the top and bottom edges thereof, and is engaged with the light bar heat sink 1 at the two side edges thereof, so that the light guide plate 31 and the liquid crystal panel 4 can be fixed between the front frame 53 and the frame 52, and between the front frame 53 and the light bar heat sink 1.
As shown in fig. 5 and 7, the outer frame 6 has a four-sided frame structure, and an inner hole is formed in the middle, and is fixed around the frame 52 (top and bottom sides) and the light bar heat sink 1 (left and right sides), so as to serve as a mounting frame for the frame 52 and the light bar heat sink 1. The outer frame can be made of toughened glass, so that the firmness of the display screen is improved.
As shown in fig. 1, the control box 7 is fixed to the bottom of the outer frame 6, and a power supply and a control circuit are provided in the control box 7. The support legs 9 are arranged at the bottom of the control box body 7 so as to stand the display screen on the ground, and the display screen is used as a vertical display screen.
In another embodiment, the control box 7 is fixed on top of the outer frame 6, and the support legs 9 are replaced with hanging members (not shown) provided on top of the control box 7 for hanging the display screen on the ceiling, and the display screen is used as a hanging display screen.
During installation, one of the light bar radiating fins 1 is firstly fixed with the first connecting plate 21 (specifically, screws can be used), the light bar radiating fin 1 with the first connecting plate 21 installed is installed at the side edge of the inner hole of the outer frame 6 through the third groove 13, the other light bar radiating fin 1 is installed at the other side edge of the inner hole of the outer frame 6 through the third groove 13, and the light bar radiating fin 1 is also fixed with the first connecting plate 21 (specifically, screws can be used). At the moment, the two lamp strip radiating fins 1 are fixed on the inner hole of the outer frame 6 through the third grooves 13 respectively. Then, the two frames 52 are respectively installed at the top edge and the bottom edge of the inner hole of the outer frame 6 through the fourth groove 523, and then the two second connecting plates 22 are respectively fixed with the upper frame 52 and the lower frame 52 (specifically, screws and slots can be used), and two sides of the second connecting plates 22 are also fixed with the light bar heat sink 1 (specifically, screws can be used). Secondly, the light bar 32 is installed in the light bar heat sink 1, the light guide plate 31 is transversely inserted into the middle frame 51, and then the light guide plate 31 is integrally placed in the assembled light bar heat sink 1 and the frame 52, specifically, the second side edge (the side without the middle frame 51) of one light bar 32 and the second side edge (the side without the middle frame 51) of the light guide plate 31 are sequentially placed in the second groove 121 of the second flange 12 of one light bar heat sink 1, so that the second side edge of the light guide plate 31 is juxtaposed with the light bar 32, then the first side edge of the light guide plate 31, namely, one side of the middle frame 51 is placed in the third recess 111 of the first flange 11 of the other light bar heat sink 1, and as the third recess 111 is an "L" shaped opening, rather than a "U" shape, the problem that the light bar is difficult to place is solved. At the same time, the top and bottom edges of the middle frame 51 are also placed in the fourth recess 522 of the bezel 52. Next, the liquid crystal panel 4 is placed in front of or behind the light guide plate 31, specifically, the second side edge of the liquid crystal panel 4 is placed in the second recess 122 of the second flange 12 of one light bar heat sink 1, the first side edge of the liquid crystal panel 4 is placed in the first recess 512 of the middle frame 51, and meanwhile, the top edge and the bottom edge of the liquid crystal panel 4 are also placed in the first recess 512 of the middle frame 51. Next, the front frame 53 is covered on the edge of the liquid crystal panel 4, the top and bottom edges of the front frame 53 are engaged with the frame 52 through the first engaging structure 81, and the left and right side edges of the front frame 53 are engaged with the light bar heat sink 1 through the second engaging structure 82, so that the liquid crystal panel 4 is fixed. Finally, the control box body 7 is fixed with the outer frame 6, and the suspension component or the support leg 9 is installed with the control box body 7.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made, or combinations of the above-described embodiments can be made without departing from the spirit of the invention, and the scope of the invention is to be determined by the appended claims.
Claims (8)
1. An ultra-thin double-sided display screen, comprising:
the lamp strip cooling fin comprises two lamp strip cooling fins (1), wherein each lamp strip cooling fin (1) extends longitudinally, and the outer edge of each lamp strip cooling fin extends forwards and backwards in the thickness direction to form a first flange (11) and a second flange (12) respectively;
the first connecting plate (21) is used for transversely connecting the two light bar radiating fins (1);
the two light guide plates (31) are respectively arranged in front of and behind the two light bar radiating fins (1), and two sides of each light guide plate (31) are respectively arranged on the first flange (11) of one light bar radiating fin (1) and the second flange (12) of the other light bar radiating fin (1);
two light bars (32) respectively arranged on the light bar radiating fins (1) and positioned on one side of each light guide plate (31);
two liquid crystal panels (4) respectively disposed in front of and behind the two light guide plates (31);
two front frames (53) covering the side edges of the liquid crystal panel (4) and fixed to the light bar heat sink (1);
two middle frames (51) shaped as a three-sided frame capable of covering the top, bottom and one of the sides of the light guide plate (31), the inner sides of which form a first groove (511) for accommodating the light guide plate (31);
the inner side of the second flange (12) of the light bar radiating fin (1) is provided with a second groove (121) for accommodating the light bar (32) and the light guide plate (31);
the inner side of the first flange (11) of the light bar cooling fin (1) forms a third recess (111) for accommodating the middle frame (51);
the first side edge of the light guide plate (31) is arranged in a first groove (511) of the middle frame (51) and is arranged in a third recess (111) of a first flange (11) of one light bar cooling fin (1) through the middle frame (51); the second side edge of the light guide plate (31) is arranged in a second groove (121) of a second flange (12) of another light bar radiating fin (1), and the light bar (32) is arranged in the second groove (121) to be close to the second side edge of the light guide plate (31); the top and bottom edges of the light guide plate (31) are disposed in the first groove (511) of the middle frame (51).
2. The ultra-thin double-sided display screen of claim 1, wherein: two sides of each liquid crystal panel (4) are respectively arranged on a first flange (11) of one light bar radiating fin (1) and a second flange (12) of the other light bar radiating fin (1).
3. The ultra-thin double-sided display screen of claim 1, wherein:
the inner side of the middle frame (51) is also provided with a first recess (512) for accommodating the liquid crystal panel (4);
the inner side of the second flange (12) of the light bar cooling fin (1) is also provided with a second recess (122) for accommodating the liquid crystal panel (4);
the first side edge of the liquid crystal panel (4) is arranged in the first recess (512) and is arranged in a third recess (111) of a first flange (11) of one light bar cooling fin (1) through the middle frame (51); the second side edge of the liquid crystal panel (4) is arranged in a second recess (122) of a second flange (12) of another light bar cooling fin (1); the top and bottom edges of the liquid crystal panel (4) are disposed in the first recess (512) of the middle frame (51).
4. The ultra-thin double-sided display screen of any one of claims 1 to 3, further comprising:
two frames (52) which are respectively connected with the top and the bottom of the lamp strip cooling fin (1) and can cover the top edge and the bottom edge of the light guide plate (31) and the liquid crystal panel (4);
the front frame (53) is a four-sided frame, and is also covered on the top edge and the bottom edge of the liquid crystal panel (4) and fixed with the frame (52).
5. The ultra-thin double-sided display screen of claim 4, further comprising:
the two second connecting plates (22) are respectively and transversely connected between the tops and the bottoms of the two light bar radiating fins (1);
the two frames (52) are respectively connected with the top and the bottom of the two second connecting plates (22), so that the frames (52) are connected with the light bar radiating fins (1) through the second connecting plates (22).
6. The ultra-thin double-sided display screen of claim 5, wherein:
the longitudinal section of the front frame (53) is L-shaped so as to cover the frame (52) and the liquid crystal panel (4); the inner surface of the front frame (53) and the outer surface of the side frame (52) are respectively provided with a first clamping structure (81) which is matched with the inner surface, and the front frame (53) is clamped with the side frame (52) through the first clamping structure (81);
the transverse section of the front frame (53) is L-shaped so as to cover the light bar radiating fins (1) of the light bar (32) and the liquid crystal panel (4); the inner surface of the front frame (53) and the outer surface of the light bar radiating fin (1) are respectively provided with a second clamping structure (82) which is matched with the inner surface of the front frame (53), and the front frame (53) is clamped with the light bar radiating fin (1) through the second clamping structure (82).
7. The ultra-thin double-sided display screen of claim 4, further comprising: an outer frame (6) secured around the rim (52) and the light bar heat sink (1).
8. The ultra-thin double-sided display screen of claim 7, further comprising:
a control box body (7) fixed on the top of the outer frame (6), and a suspension component arranged on the top of the control box body (7);
or a control box body (7) fixed at the bottom of the outer frame (6), and a support leg (9) arranged at the bottom of the control box body (7).
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| CN111308765A (en) * | 2020-04-15 | 2020-06-19 | 苏州财纳电子科技有限公司 | Ultrathin double-sided screen |
| CN113219692B (en) * | 2021-03-25 | 2022-12-06 | 武汉华星光电技术有限公司 | Display module and display system |
| CN114371527B (en) * | 2021-12-03 | 2024-06-14 | 安徽康佳电子有限公司 | Double-sided screen backlight module with glass light guide plate structure |
| CN115035802A (en) * | 2022-06-28 | 2022-09-09 | 惠科股份有限公司 | Backlight module, assembling method of backlight module and display equipment |
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| CN106547133A (en) * | 2017-01-16 | 2017-03-29 | 上海启钧电子有限公司 | Double-sided display modular structure and its assemble method |
| CN109307944A (en) * | 2018-12-13 | 2019-02-05 | 上海启钧电子有限公司 | Ultrathin double-face display module |
| CN208672964U (en) * | 2018-09-13 | 2019-03-29 | 深圳市万国电器有限公司 | Double-sided liquid crystal display device |
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| CN106547133A (en) * | 2017-01-16 | 2017-03-29 | 上海启钧电子有限公司 | Double-sided display modular structure and its assemble method |
| CN208672964U (en) * | 2018-09-13 | 2019-03-29 | 深圳市万国电器有限公司 | Double-sided liquid crystal display device |
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