CN210270448U - Backlight structure of high accuracy integration of backlight - Google Patents
Backlight structure of high accuracy integration of backlight Download PDFInfo
- Publication number
- CN210270448U CN210270448U CN201920962977.XU CN201920962977U CN210270448U CN 210270448 U CN210270448 U CN 210270448U CN 201920962977 U CN201920962977 U CN 201920962977U CN 210270448 U CN210270448 U CN 210270448U
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- backlight
- cold cathode
- frame
- cathode fluorescent
- light guide
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Abstract
The utility model discloses a backlight structure of backlight high accuracy integration relates to backlight technical field, including preceding frame, the lower extreme of preceding frame is provided with color filter, install the horizontal polaroid between color filter and the preceding frame, and color filter's lower extreme is provided with the liquid crystal display, the backplate with glue and be provided with the backlight between the frame. Be provided with ruddiness LED diode between the cold cathode fluorescent lamp, LED has low-power consumption, low calorific capacity, luminance is high, characteristics such as long-life, the luminance that LED is shaded is high, long-time use luminance also can not descend, and the fuselage that LED is shaded is thinner, the cold cathode fluorescent lamp is placed to the recess that sets up on the light guide plate, make the installation of device compacter, and can avoid the light diffusion of cold cathode fluorescent lamp effectively, when guaranteeing for the luminous efficacy, also be favorable to the integrated installation of device, the setting of recess also avoids the light guide plate can lacerate the cold cathode fluorescent lamp under high temperature simultaneously.
Description
Technical Field
The utility model relates to a backlight technical field specifically is a backlight structure of backlight high accuracy integration.
Background
In the electronics industry, backlighting is a form of illumination that is commonly used on LCD displays. The backlight type is different from the front type in that the backlight is irradiated from the side or the back, and the front light is irradiated from the front as the name suggests. They are used to increase the illumination in low light environments and brightness on computer displays, liquid crystal panel screens, to produce light in a manner similar to CRT displays, in one particular application backlights typically emit light into a light guide, particularly where a very thin backlight is required, such as in laptop computer displays, where the light guide utilizes Total Internal Reflection (TIR) to transport or direct light from an edge-mounted lamp across the length or width of the light guide to opposite edges of the backlight, and where an uneven pattern of local extraction structures is provided on the surface of the light guide to increase on-axis brightness.
However, the backlight source in the current market has a situation of insufficient brightness, the imaging chromaticity of the cold cathode fluorescent lamp of the common backlight source is poor, and the installation position is unreasonable, so that the light-providing rate of the cold cathode fluorescent lamp is poor, and the heat generated by the cold cathode fluorescent lamp cannot be effectively dissipated. Therefore, the backlight source structure with high-precision integration is provided by the people skilled in the art to solve the problems in the background art.
Disclosure of Invention
An object of the utility model is to provide a backlight structure of backlight high accuracy integration to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a backlight structure of backlight high accuracy integration, includes preceding frame, the lower extreme of preceding frame is provided with color filter, install the horizontal polaroid between color filter and the preceding frame, and color filter's lower extreme is provided with the liquid crystal sheet, the lower extreme of liquid crystal sheet is provided with printed circuit board, install perpendicular polaroid between printed circuit board and the liquid crystal sheet, and printed circuit board's lower extreme is provided with glues the frame, glue and be provided with the diffuser plate between frame and the printed circuit board, and the lower extreme of gluing the frame is provided with the backplate, be provided with the backlight between backplate and the gluey frame.
As a further aspect of the present invention: two cold cathode lamp tubes are arranged on two sides of the backlight source, the front end of the backlight source is provided with a light guide plate, the front end of the light guide plate is provided with a diffusion plate, and the rear end of the backlight source is provided with a reflecting plate.
As a further aspect of the present invention: a double-sided adhesive tape is arranged between the front frame and the back plate, a diffusion film is arranged at the lower end of the double-sided adhesive tape, and a light transmission film is arranged between the diffusion film and the double-sided adhesive tape.
As a further aspect of the present invention: the LED lamp comprises a light guide plate, a cold cathode lamp tube and a cold cathode lamp tube, wherein the inner side of the cold cathode lamp tube is provided with a red LED, the upper end and the lower end of the light guide plate are provided with grooves, and the cold cathode lamp tube is connected with the light guide plate through the grooves.
As a further aspect of the present invention: the front frame is connected with the back plate through a buckle, and the front frame and the back plate are plastic components.
As a further aspect of the present invention: two soaking pieces are arranged at two ends of the double-sided adhesive tape, and heat conducting paste is arranged between the two soaking pieces.
As a further aspect of the present invention: the soaking piece is a heat conduction graphite material component, and the heat conduction cream is a silicone grease material component.
Compared with the prior art, the beneficial effects of the utility model are that:
1. be provided with ruddiness LED diode between preferred cold cathode fluorescent lamp, LED has low-power consumption, low calorific capacity, luminance is high, characteristics such as long-life, LED is shaded brightly, long-time use luminance also can not descend, and LED is shaded the fuselage thinner, the appearance is also pleasing to the eye, the color is also softer, the color of cooperation hard screen panel can let eyes more comfortable some, power saving environmental protection radiation is low, traditional high cost with phosphorus cold cathode fluorescent lamp has been avoided, adopt LED to be shaded the advantage that thickness is thinner, the colour gamut is also very wide, can reduce black luminous flux, and then make liquid crystal display TV contrast higher.
2. The groove arranged on the optimized light guide plate is used for placing the cold cathode fluorescent lamp, so that the device is more compact in installation, the light diffusion of the cold cathode fluorescent lamp can be effectively avoided, the light-giving rate is guaranteed, the device is also beneficial to integrated installation, and meanwhile the cold cathode fluorescent lamp can be prevented from being scratched by the light guide plate at high temperature due to the arrangement of the groove.
3. The optimized cold cathode lamp tube is connected to the soaking piece through the heat conducting paste, so that high heat generated on the lamp tube in the working state can be effectively dissipated, the lamp tube is prevented from being damaged by high temperature, and the service life of the cold cathode lamp tube is prevented from being influenced.
Drawings
FIG. 1 is a schematic structural diagram of a backlight structure with integrated high-precision backlight;
FIG. 2 is a schematic diagram of a backlight structure with integrated high-precision backlight;
fig. 3 is a schematic cross-sectional view of a backlight source in a backlight source structure with integrated high-precision backlight source.
In the figure: 1. a front frame; 2. a horizontal polarizer; 3. a color filter; 4. a liquid crystal sheet; 5. a vertical polarizer; 6. a printed circuit board; 7. a diffusion plate; 8. a rubber frame; 9. a backlight source; 10. a back plate; 901. a cold cathode lamp tube; 902. a light guide plate; 903. a diffusion plate; 904. a reflective plate; 101. double-sided adhesive tape; 102. a light transmissive film; 103. a diffusion membrane; 104. heat conducting paste; 105. a heat equalizing sheet.
Detailed Description
Please refer to fig. 1-3, in an embodiment of the present invention, a backlight structure with integrated high-precision backlight source, including a front frame 1, a lower end of the front frame 1 is provided with a color filter 3, a horizontal polarizer 2 is installed between the color filter 3 and the front frame 1, and a lower end of the color filter 3 is provided with a liquid crystal sheet 4, a lower end of the liquid crystal sheet 4 is provided with a printed circuit board 6, a vertical polarizer 5 is installed between the printed circuit board 6 and the liquid crystal sheet 4, and a lower end of the printed circuit board 6 is provided with a glue frame 8, a diffuser plate 7 is installed between the glue frame 8 and the printed circuit board 6, and a lower end of the glue frame 8 is provided with a back plate 10, and a backlight source.
Two cold cathode fluorescent lamps 901 are arranged on two sides of a backlight source 9, a light guide plate 902 is arranged at the front end of the backlight source 9, a diffusion plate 903 is arranged at the front end of the light guide plate 902, a reflection plate 904 is arranged at the rear end of the backlight source 9, a double-sided adhesive tape 101 is arranged between a front frame 1 and a back plate 10, a diffusion film 103 is arranged at the lower end of the double-sided adhesive tape 101, a light transmission film 102 is arranged between the diffusion film 103 and the double-sided adhesive tape 101, a red LED is arranged between the cold cathode fluorescent lamps 901, the LED has the characteristics of low power consumption, low heat productivity, high brightness, long service life and the like, the brightness of the LED backlight is high, the brightness cannot be reduced after long-time use, the body of the LED backlight is thinner, the appearance is attractive, the color is also relatively good, the eyes can be more comfortable by matching with the color of a hard screen panel, the electricity is saved, the color gamut is also very wide, which can reduce the light flux of black, and thus make the contrast higher.
The inner side of the cold cathode fluorescent lamp 901 is provided with a red LED, the upper and lower ends of the light guide plate 902 are provided with grooves, the cold cathode fluorescent lamp 901 is connected with the light guide plate 902 through the grooves, the front frame 1 is connected with the back plate 10 through a buckle, the front frame 1 and the back plate 10 are plastic components, two soaking plates 105 are arranged at two ends of the double-sided adhesive tape 101, a heat conducting paste 104 is arranged between the two soaking plates 105, the soaking plates 105 are heat conducting graphite components, the heat conducting paste 104 is a silicone grease component, the cold cathode fluorescent lamp 901 is placed in the grooves arranged on the light guide plate 902, so that the installation of the device is more compact, the light diffusion of the cold cathode fluorescent lamp 901 can be effectively avoided, the integral installation of the device is also facilitated while the light supply rate is ensured, meanwhile, the arrangement of the grooves also avoids the cold cathode fluorescent lamp 901 from being scratched by the light guide plate 902 at high temperature, the cold cathode fluorescent lamp, the high heat generated on the lamp tube in the working state can be effectively dissipated, and the lamp tube is prevented from being damaged by the high heat, so that the service life of the backlight source 9 is prevented from being influenced.
The utility model discloses a theory of operation is: the grooves arranged on the light guide plate 902 are used for placing the cold cathode lamp tubes 901, so that the cold cathode lamp tubes 901 can be prevented from being scratched by the light guide plate 902 at high temperature, the light diffusion of the cold cathode lamp tubes 901 can be effectively avoided, the light-giving rate is ensured, the device can be more compactly installed, the integrated installation of the device is also facilitated, the cold cathode lamp tubes 901 are connected onto the soaking plates 105 through the heat conducting paste 104, the soaking plates 105 made of stone heat conducting ink and the heat conducting paste 104 made of silicone grease can absorb and dissipate the heat of the cold cathode lamp tubes 901 to a great extent, the lamp tubes can be effectively prevented from being damaged by high temperature, the service life of the backlight source 9 is influenced, red LED diodes are arranged between the cold cathode lamp tubes 901, the LEDs have the characteristics of low power consumption, low heat productivity, high brightness, long service life and the like, the brightness of the LED backlight is high, the brightness cannot be reduced even after long-time use, the color is also softer, and the color of cooperation hard screen panel can let eyes more comfortable, and power saving environmental protection radiation is low, has avoided traditional cold cathode fluorescent lamp 901 to add the high cost of phosphorus, and the advantage that adopts LED to be shaded lies in that thickness is thinner, and the colour gamut is also very wide, can reduce black luminous flux, and then makes the contrast higher.
The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a backlight structure of backlight high accuracy integration, includes preceding frame (1), its characterized in that, the lower extreme of preceding frame (1) is provided with color filter (3), install horizontal polaroid (2) between color filter (3) and preceding frame (1), and the lower extreme of color filter (3) is provided with liquid crystal sheet (4), the lower extreme of liquid crystal sheet (4) is provided with printed circuit board (6), install perpendicular polaroid (5) between printed circuit board (6) and liquid crystal sheet (4), and the lower extreme of printed circuit board (6) is provided with gluey frame (8), it is provided with diffuser plate (7) to glue between frame (8) and printed circuit board (6), and the lower extreme of gluing frame (8) is provided with backplate (10), be provided with backlight (9) between backplate (10) and gluey frame (8).
2. The backlight structure of claim 1, wherein two cold cathode fluorescent lamps (901) are disposed on two sides of the backlight (9), a light guide plate (902) is mounted at the front end of the backlight (9), a diffusion plate (903) is disposed at the front end of the light guide plate (902), and a reflection plate (904) is disposed at the rear end of the backlight (9).
3. The backlight structure of claim 1, wherein a double-sided adhesive tape (101) is disposed between the front frame (1) and the back plate (10), a diffusion film (103) is disposed at a lower end of the double-sided adhesive tape (101), and a light-transmitting film (102) is disposed between the diffusion film (103) and the double-sided adhesive tape (101).
4. The backlight structure of claim 2, wherein the inner side of the cold cathode fluorescent lamp (901) is provided with a red LED, the upper and lower ends of the light guide plate (902) are provided with grooves, and the cold cathode fluorescent lamp (901) is connected with the light guide plate (902) through the grooves.
5. The backlight structure of claim 1, wherein the front frame (1) and the back plate (10) are connected by a snap, and the front frame (1) and the back plate (10) are made of plastic materials.
6. The backlight structure of claim 3, wherein two heat equalizing sheets (105) are mounted at two ends of the double-sided adhesive tape (101), and a thermal conductive paste (104) is disposed between the two heat equalizing sheets (105).
7. The backlight structure of claim 6, wherein the heat spreader (105) is a heat conductive graphite material, and the heat conductive paste (104) is a silicone grease material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920962977.XU CN210270448U (en) | 2019-06-25 | 2019-06-25 | Backlight structure of high accuracy integration of backlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920962977.XU CN210270448U (en) | 2019-06-25 | 2019-06-25 | Backlight structure of high accuracy integration of backlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210270448U true CN210270448U (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920962977.XU Expired - Fee Related CN210270448U (en) | 2019-06-25 | 2019-06-25 | Backlight structure of high accuracy integration of backlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210270448U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255840A (en) * | 2020-11-04 | 2021-01-22 | 深圳市柯瑞光电科技有限公司 | LED backlight source for hyperboloid cell-phone |
| CN113077727A (en) * | 2021-04-07 | 2021-07-06 | 深圳市星创彩光电有限公司 | LED full-color screen drive circuit, LED module and LED display screen |
-
2019
- 2019-06-25 CN CN201920962977.XU patent/CN210270448U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255840A (en) * | 2020-11-04 | 2021-01-22 | 深圳市柯瑞光电科技有限公司 | LED backlight source for hyperboloid cell-phone |
| CN113077727A (en) * | 2021-04-07 | 2021-07-06 | 深圳市星创彩光电有限公司 | LED full-color screen drive circuit, LED module and LED display screen |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200407 Termination date: 20210625 |
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| CF01 | Termination of patent right due to non-payment of annual fee |