CN211180464U - Graphite heat dissipation type liquid crystal display - Google Patents
Graphite heat dissipation type liquid crystal display Download PDFInfo
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- CN211180464U CN211180464U CN201921935350.1U CN201921935350U CN211180464U CN 211180464 U CN211180464 U CN 211180464U CN 201921935350 U CN201921935350 U CN 201921935350U CN 211180464 U CN211180464 U CN 211180464U
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- polarizing plate
- liquid crystal
- backlight
- heat dissipation
- plate
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Abstract
The utility model discloses a graphite heat dissipation type liquid crystal display screen, which comprises a display group and a backlight source group; the display group comprises a first polarizing plate, a first glass substrate, a rubber frame, a liquid crystal layer, a second glass substrate and a second polarizing plate; the first polarizing plate is positioned at the front side of the second polarizing plate; the light-emitting side of the first polarizing plate faces a viewer; the backlight light source group is arranged at the rear side of the second polarizing plate, and the light emergent side of the backlight light source group faces the rear side of the second polarizing plate; wherein: the light incident side of the second polarizing plate is sequentially provided with a diffusion sheet and a soft light curtain; a graphite radiating fin is arranged at the rear side of the diffusion sheet; the graphite radiating fins are arranged between the diffusion sheet and the backlight source group at intervals; the diffusion sheet and the soft light curtain are sequentially arranged on the light incident side of the second polarizing plate, and the graphite radiating fins are arranged on the rear side of the diffusion sheet, so that the graphite radiating fins are arranged between the diffusion sheet and the backlight light source group at intervals, heat dissipation is enhanced by the graphite radiating fins, and the condition of heat accumulation inside the display screen is effectively improved.
Description
Technical Field
The utility model belongs to the technical field of the liquid crystal display technique and specifically relates to indicate a graphite heat dissipation type liquid crystal display.
Background
Liquid Crystal displays (LCD's), known as L liquid Crystal displays (L CD), are used in a wide variety of applications, such as screen displays for televisions and computers, and are one type of flat panel displays.
Although the liquid crystal display screen has low power consumption, the backlight is needed, and after the liquid crystal display screen is used for a long time, internal heat can be accumulated and is not easy to be dissipated, so that negative effects are easily caused to a light source, a circuit board and the like. In addition, in the liquid crystal display screen in the prior art, the used light source is mainly arranged at the rear end and the side end of the light guide plate, the thickness of the light guide plate is consistent, and the backlight structure is designed to be uniform and consistent.
Therefore, a new technical solution needs to be developed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a graphite heat dissipation type liquid crystal display panel, which has a diffusion sheet and a soft light curtain sequentially disposed on the light incident side of the second polarizer, and a graphite heat dissipation sheet disposed on the rear side of the diffusion sheet, so that the graphite heat dissipation sheet is disposed between the diffusion sheet and the backlight source group, and the graphite heat dissipation sheet is used to enhance heat dissipation, thereby effectively improving the heat accumulation inside the display panel.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a graphite heat dissipation type liquid crystal display screen comprises a display group and a backlight source group; the display group comprises a first polarizing plate, a first glass substrate, a rubber frame, a liquid crystal layer, a second glass substrate and a second polarizing plate which are arranged in sequence; the first polarizing plate is positioned at the front side of the second polarizing plate; the light emitting side of the first polarizing plate faces a viewer; the backlight light source group is arranged on the rear side of the second polarizing plate, and the light emergent side of the backlight light source group faces the rear side of the second polarizing plate; wherein: the light incident side of the second polarizing plate is sequentially provided with a diffusion sheet and a soft light curtain; a graphite radiating fin is arranged on the rear side of the diffusing sheet; and the graphite radiating fins are arranged between the diffusion sheet and the backlight source group at intervals.
As a preferred scheme, the display device is further provided with a fixed frame, the fixed frame is in a rectangular frame shape, an inner cavity is formed in the fixed frame in a surrounding mode, the front end and the rear end of the inner cavity are arranged in an open mode, and the display group 100 is positioned in the inner cavity; and a pressing frame is arranged at the rear side of the fixing frame, is adhered to the rear end of the fixing frame and is used for positioning the rear side of the graphite radiating fin.
As a preferable aspect, the fixing frame has a side wall and a front stop arm integrally connected to a front end of the side wall, and the peripheral front side pad of the first polarizing plate is provided with a waterproof gasket sealed between the front stop arm and the first polarizing plate.
Preferably, the graphite heat dissipation fins extend outward from the outer periphery of the fixing frame.
As a preferable scheme, the first polarizing plate includes a first PVA polarizing layer and first TAC layers disposed on both side surfaces of the first PVA polarizing layer; the second polarizing plate comprises a second PVA polarizing layer, an auxiliary PVA polarizing layer and a quarter wave plate, the quarter wave plate is positioned between the second PVA polarizing layer and the auxiliary PVA polarizing layer, and a second TAC layer is arranged on the outer side of the second PVA polarizing layer and the outer side of the auxiliary PVA polarizing layer.
As a preferred scheme, the backlight source group comprises a tapered light guide plate, a backlight source, an arc-shaped reflecting plate and a reflecting film; the conical light guide plate is designed to be gradually reduced from left to right, the backlight source is positioned on the left side of the conical light guide plate, and the arc-shaped reflecting plate surrounds the left side, the upper side and the lower side of the backlight source so that light rays of the backlight source only irradiate towards the left end face of the conical light guide plate; the reflecting film is attached to the rear end face, the upper end face and the lower end face of the conical light guide plate; the front end face of the conical light guide plate is a vertical plane and is arranged towards the diffusion sheet, and the rear end face of the conical light guide plate (201) is an inclined plane.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, concretely speaking, according to the technical scheme, the diffusion sheet and the soft light curtain are sequentially arranged on the light incident side of the second polarizing plate, and the graphite radiating fin is arranged on the rear side of the diffusion sheet, so that the graphite radiating fin is arranged between the diffusion sheet and the backlight source group at intervals, the graphite radiating fin is utilized to enhance heat radiation, and the condition that heat is accumulated in the display screen is effectively improved;
secondly, the graphite radiating fins extend to the periphery of the fixing frame to be exposed to the periphery of the fixing frame, so that heat can be accelerated to be guided to the outer frame of the display screen, and the radiating effect is better;
moreover, the backlight light source group is combined with the tapered light guide plate through the end face light source arrangement, so that the uniformity of light emitting rays of the light guide plate is ensured by a simpler structure, meanwhile, the effective utilization rate of light is high, the overall structure of the backlight light source group is compact, the occupied space is small, and the structural layout of the liquid crystal display screen is facilitated; and the rear end face of the conical light guide plate is an inclined plane, so that the reserved space can better dissipate heat.
To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a partial cross-sectional view of an embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of a first polarizer according to an embodiment of the present invention;
fig. 3 is a partial cross-sectional view of a second polarizer according to an embodiment of the present invention.
FIG. 4 is an enlarged partial view of FIG. 1A;
FIG. 5 is an enlarged partial view at FIG. 1B;
fig. 6 is a cross-sectional view of a backlight according to an embodiment of the invention.
The attached drawings indicate the following:
First polarizing plate 10 first PVA polarizing layer 101
Liquid crystal layer 40 of rubber frame 30
The second PVA polarizing layer 601 assists the PVA polarizing layer 602
Diffuser 61 soft light curtain 62
Fixing frame 80
First electrode 2 second electrode 3
Graphite radiating fin 4 waterproof gasket 5
Graphite heat dissipation film 6
Tapered light guide plate 201
Backlight source 202 arc reflecting plate 203
A reflective film 204.
Detailed Description
Fig. 1 to 6 show the specific structure of the preferred embodiment of the present invention.
The graphite heat dissipation type liquid crystal display screen comprises a display group 100 and a backlight source group 200; the display set 100 includes a first polarizing plate 10, a first glass substrate 20, a rubber frame 30, a liquid crystal layer 40, a second glass substrate 50, and a second polarizing plate 60, which are sequentially disposed; the opposite sides of the first glass substrate 20 and the second glass substrate 50 are provided with alignment films 1, and a first electrode 2 and a second electrode 3 respectively.
The first polarizing plate 10 is located at the front side of the second polarizing plate 60; the light-emitting side of the first polarizing plate 10 faces the viewer; the backlight source set 200 is disposed at the rear side of the second polarizing plate 60, and the light emitting side of the backlight source set 200 faces the rear side of the second polarizing plate 60; wherein:
the first polarizing plate 10 includes a first PVA polarizing layer 101 and first TAC layers 102 disposed on both side surfaces of the first PVA polarizing layer 101; a diffusion sheet 61 and a soft light curtain 62 are sequentially arranged on the light incident side of the second polarizing plate 60; a diffusion sheet 61 and a soft light curtain 62 are sequentially arranged on the light incident side of the second polarizing plate 60; the rear side of the diffusion sheet 61 is provided with a graphite heat radiating fin 4; the graphite heat sink 4 is disposed between the diffusion sheet 61 and the backlight source group 200.
Preferably, the graphite heat dissipation fins 4 extend to the outer periphery and are exposed to the outer periphery of the fixing frame 80, so that heat can be accelerated to the outer frame of the display screen, and the heat dissipation effect is better.
The second polarizer 60 includes a second PVA polarizing layer 601, an auxiliary PVA polarizing layer 602, and a quarter-wave plate 603, the quarter-wave plate 603 is located between the second PVA polarizing layer 601 and the auxiliary PVA polarizing layer 602, and a second TAC layer 604 is disposed on the outer sides of the second PVA polarizing layer 601 and the auxiliary PVA polarizing layer 602.
The backlight light source group 200 comprises a tapered light guide plate 201, a backlight light source 202, an arc-shaped reflecting plate 203 and a reflecting film 204; the tapered light guide plate 201 is designed to be gradually reduced from left to right, the backlight source 202 is positioned on the left side of the tapered light guide plate 201, and the arc-shaped reflecting plate 203 surrounds the left side, the upper side and the lower side of the backlight source 202 so that light rays of the backlight source 202 only irradiate towards the left end face of the tapered light guide plate 201; the reflecting film 204 is attached to the rear end face, the upper end face and the lower end face of the tapered light guide plate 201; the front end face of the tapered light guide plate 201 is a vertical plane and is arranged toward the diffusion sheet 61, and the rear end face of the tapered light guide plate 201 is an inclined plane.
Still be provided with fixed frame 80, fixed frame 80 is the rectangle frame form, and it encloses and is equipped with the inner chamber, the uncovered setting in preceding, the rear end of inner chamber, display assembly 100 is located the inner chamber. Here, a pressing frame 90 is provided at the rear side of the fixing frame 80, and the pressing frame 90 is adhered to the rear end of the fixing frame 80 to position the rear side of the diffusion sheet 61. The graphite heat sink 4 is annular and is attached to the rear end of the pressing frame 90, and the periphery of the graphite heat sink 4 extends and is exposed out of the periphery of the fixing frame 80; preferably, the inner circumferential surface of the pressing frame 90 is covered with the graphite heat dissipation film 6, and a space surrounded by the graphite heat dissipation film 6 and the graphite heat dissipation fins 4 is a gap provided between the diffusion sheet 61 and the front end surface of the tapered light guide plate 201.
The fixing frame 80 has a side wall and a front stop arm integrally connected to the front end of the side wall, the peripheral front side pad of the first polarizing plate 10 is provided with a waterproof gasket 5, and the waterproof gasket 5 is sealed between the front stop arm and the first polarizing plate 10.
To sum up, the design of the utility model is characterized in that the diffusion sheet and the soft light curtain are sequentially arranged on the light incident side of the second polarizing plate, and the graphite cooling fin is arranged on the rear side of the diffusion sheet, so that the graphite cooling fin is arranged between the diffusion sheet and the backlight source group at intervals, the graphite cooling fin is used for enhancing the heat dissipation, and the condition that the heat is accumulated in the display screen is effectively improved;
secondly, the graphite radiating fins extend to the periphery of the fixing frame to be exposed to the periphery of the fixing frame, so that heat can be accelerated to be guided to the outer frame of the display screen, and the radiating effect is better;
moreover, the backlight light source group is combined with the tapered light guide plate through the end face light source arrangement, so that the uniformity of light emitting rays of the light guide plate is ensured by a simpler structure, meanwhile, the effective utilization rate of light is high, the overall structure of the backlight light source group is compact, the occupied space is small, and the structural layout of the liquid crystal display screen is facilitated; and the rear end face of the conical light guide plate is an inclined plane, so that the reserved space can better dissipate heat.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides a graphite heat dissipation type liquid crystal display, its characterized in that: comprises a display group (100) and a backlight source group (200); the display group (100) comprises a first polarizing plate (10), a first glass substrate (20), a rubber frame (30), a liquid crystal layer (40), a second glass substrate (50) and a second polarizing plate (60) which are sequentially arranged; the first polarizing plate (10) is positioned at the front side of the second polarizing plate (60); the light-emitting side of the first polarizing plate (10) faces a viewer; the backlight light source group (200) is arranged at the rear side of the second polarizing plate (60), and the light outlet side of the backlight light source group (200) faces the rear side of the second polarizing plate (60); wherein: a diffusion sheet (61) and a soft light curtain (62) are sequentially arranged on the light incident side of the second polarizing plate (60); a graphite radiating fin (4) is arranged on the rear side of the diffusion sheet (61); and the graphite radiating fins (4) are arranged between the diffusion sheet (61) and the backlight light source group (200) at intervals.
2. The graphite heat dissipation type liquid crystal display panel according to claim 1, wherein: the display device is further provided with a fixing frame (80), the fixing frame (80) is in a rectangular frame shape, an inner cavity is formed in the fixing frame in a surrounding mode, the front end and the rear end of the inner cavity are arranged in an open mode, and the display group 100 is positioned in the inner cavity; a pressing frame (90) is arranged on the rear side of the fixing frame (80), and the pressing frame (90) is adhered to the rear end of the fixing frame (80) and used for positioning the rear side of the graphite radiating fin (4).
3. The graphite heat dissipation type liquid crystal display panel according to claim 2, characterized in that: the fixed frame (80) has a side wall and an integral connection in the front stop arm of the side wall front end, the peripheral front side pad of first polarizing plate (10) is equipped with waterproof gasket (5), waterproof gasket (5) are sealed between front stop arm, first polarizing plate (10).
4. The graphite heat dissipation type liquid crystal display panel according to claim 2, characterized in that: the graphite radiating fins (4) extend to the periphery and are exposed on the periphery of the fixing frame (80).
5. The graphite heat dissipation type liquid crystal display panel according to claim 2, characterized in that: the first polarizing plate (10) comprises a first PVA polarizing layer (101) and first TAC layers (102) positioned on two side surfaces of the first PVA polarizing layer (101); the second polarizing plate (60) comprises a second PVA polarizing layer (601), an auxiliary PVA polarizing layer (602) and a quarter-wave plate (603), the quarter-wave plate (603) is located between the second PVA polarizing layer (601) and the auxiliary PVA polarizing layer (602), and a second TAC layer (604) is arranged on the outer sides of the second PVA polarizing layer (601) and the auxiliary PVA polarizing layer (602).
6. The graphite heat dissipation type liquid crystal display panel according to claim 1, wherein: the backlight light source group (200) comprises a conical light guide plate (201), a backlight light source (202), an arc-shaped reflecting plate (203) and a reflecting film (204); the tapered light guide plate (201) is designed to be gradually reduced from left to right, the backlight source (202) is positioned on the left side of the tapered light guide plate (201), and the arc-shaped reflecting plate (203) surrounds the left side, the upper side and the lower side of the backlight source (202) so that light rays of the backlight source (202) only irradiate towards the left end face of the tapered light guide plate (201); the reflecting film (204) is attached to the rear end face, the upper end face and the lower end face of the conical light guide plate (201); the front end face of the conical light guide plate (201) is a vertical plane and is arranged towards the diffusion sheet (61), and the rear end face of the conical light guide plate (201) is an inclined plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921935350.1U CN211180464U (en) | 2019-11-11 | 2019-11-11 | Graphite heat dissipation type liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921935350.1U CN211180464U (en) | 2019-11-11 | 2019-11-11 | Graphite heat dissipation type liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211180464U true CN211180464U (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921935350.1U Active CN211180464U (en) | 2019-11-11 | 2019-11-11 | Graphite heat dissipation type liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211180464U (en) |
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2019
- 2019-11-11 CN CN201921935350.1U patent/CN211180464U/en active Active
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