CN212781591U - Display device - Google Patents
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- CN212781591U CN212781591U CN202021223067.9U CN202021223067U CN212781591U CN 212781591 U CN212781591 U CN 212781591U CN 202021223067 U CN202021223067 U CN 202021223067U CN 212781591 U CN212781591 U CN 212781591U
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Abstract
The utility model provides a display device, which comprises a display module and a backlight module, wherein the display module is fixed on the backlight module, the light-emitting side of the backlight module faces to the light-in side of the display module, the backlight module comprises an installation frame and a diaphragm, and the backlight module also comprises a groove-shaped strip, a strip-shaped lens and a strip-shaped LED light source; the groove-shaped strip, the strip-shaped lens and the LED light source are arranged in the mounting groove; the groove-shaped strips are arranged along the length direction of the mounting groove and provided with fixing grooves arranged along the length direction of the groove-shaped strips; the length direction of the strip-shaped lens is arranged along the length direction of the groove-shaped strip, the strip-shaped lens covers the opening of the fixed groove, the section, perpendicular to the length direction, of the surface of one side of the strip-shaped lens is a convex arc surface and faces the diaphragm, the surface of the other side of the strip-shaped lens is a plane, and the plane faces the fixed groove and is fixed on the groove-shaped strip; the LED light source sets up in the fixed slot, and the light-emitting side of LED light source reduces the LED lamp pearl quantity of LED light source towards the plane of bar lens.
Description
Technical Field
The utility model belongs to the technical field of show, more specifically say, relate to a display device.
Background
Currently, a display device has been widely used in various electronic products as a display part of an electronic apparatus. The existing display device comprises a display screen and a backlight module, wherein the backlight module comprises a mounting plate, a light source, a light guide plate, a reflection sheet, a diffusion sheet and a polarizing film, a mounting groove is formed in the mounting plate, the light source, the light guide plate, the reflection sheet, the diffusion sheet and the polarizing film are arranged in the mounting groove, and the display screen is fixed on the mounting plate and covers the polarizing film. The light source adopts an LED lamp strip. LED lamp area adopts paster LED lamp pearl to give out light, because the light beam that paster LED lamp pearl sent belongs to spotlight, the light that every paster LED lamp pearl sent all illuminates its the place ahead, and the region that lies in the middle of two paster LED lamp pearls exists obviously dimly, in order to guarantee the illuminating effect in LED lamp area, the user need set up more paster LED lamp pearl on the LED lamp area of certain length, and the distance between the adjacent paster LED lamp pearl is less.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a display device to solve the technical problem who sets up more paster LED lamp pearl among the prior art on the LED lamp area of certain length.
In order to achieve the above object, the utility model adopts the following technical scheme: the display device comprises a display module and a backlight module, wherein the display module is fixed on the backlight module, the light-emitting side of the backlight module faces to the light-in side of the display module, the backlight module comprises an installation frame and a diaphragm, the installation frame is provided with an installation groove, the diaphragm is arranged in the installation groove, and the backlight module further comprises a groove-shaped strip, a strip-shaped lens and a strip-shaped LED light source; the groove-shaped strip, the strip-shaped lens and the LED light source are arranged in the mounting groove;
the groove-shaped strip is arranged along the length direction of the mounting groove and is provided with a fixing groove arranged along the length direction of the groove-shaped strip;
the length direction of the strip-shaped lens is arranged along the length direction of the groove-shaped strip, the strip-shaped lens covers the opening of the fixed groove, the section, perpendicular to the length direction, of the surface of one side of the strip-shaped lens is a convex arc surface and faces the diaphragm, the surface of the other side of the strip-shaped lens is a plane, and the plane faces the fixed groove and is fixed on the groove-shaped strip;
the LED light source is arranged in the fixing groove, and the light emitting side of the LED light source faces to the plane of the strip-shaped lens;
the LED light source comprises a circuit board and a plurality of lamp beads, all the lamp beads are arranged along the length direction of the circuit board, and the lamp beads are electrically connected and fixed on the circuit board.
Furthermore, the circuit board is a flexible circuit board, each lamp bead is a patch LED, and all the patch LEDs are uniformly arranged along the length direction of the flexible circuit board.
Furthermore, the display device further comprises a temperature sensor and a reminding device, wherein a detection hole is formed in the mounting frame, one end of the detection hole penetrates into the mounting groove, the temperature sensor is fixed in the detection hole and avoids the diaphragm, and the temperature sensor is used for detecting the temperature in the mounting groove;
the reminding device is electrically connected with the temperature sensor, is positioned outside the backlight module and is used for reminding a user when the temperature in the mounting groove is abnormal.
Furthermore, one end of the detection hole, which is deviated from the installation groove, penetrates through the outer side of the installation frame.
Further, the end face of the detection end of the temperature sensor is flush with the inner side wall of the end part of the installation groove, which is penetrated through the detection hole.
Furthermore, the display device further comprises a light-tight layer, the light-tight layer is located between the inner wall of the detection hole and the temperature sensor, and the temperature sensor is fixed in the detection hole through the light-tight layer.
Further, the temperature sensor is set as an infrared temperature sensor or a negative temperature thermistor.
Further, when the temperature sensor is set as the negative temperature thermistor, the reminding device comprises a light emitting diode and a stabilized voltage supply module, the output end of the stabilized voltage supply module is electrically connected to one end of the negative temperature thermistor, the other end of the negative temperature thermistor is connected to the anode of the light emitting diode, and the cathode of the light emitting diode is grounded.
Further, when the temperature sensor is an infrared temperature sensor, the reminding device comprises a comparator, a triode and a reminding unit;
the output end of the infrared temperature sensor is connected to the in-phase end of the comparator, a first power supply voltage is input into the power supply end of the infrared temperature sensor, and the grounding end of the infrared temperature sensor is grounded;
the output end of the comparator is electrically connected with the base electrode of the triode;
and a second power supply voltage is input into a collector electrode of the triode, an emitter electrode of the triode is grounded, and a power supply end of the reminding unit is connected with the collector electrode of the triode.
Further, the reminding unit is a buzzer or a flasher.
The utility model provides a pair of display device's beneficial effect lies in: compared with the prior art, the plane plays and fixes the effect on bar lens with the LED light source, the light that the LED light source sent can pass through bar lens's plane, the convex arc face enters into the diaphragm, the convex arc face has divergence to the light through the plane, the light that each lamp pearl sent has increased irradiation range behind the bar lens, thereby the light that the light of adjacent lamp pearl formed behind the bar lens passes through intersects easily together, distance between the adjacent lamp pearl can set up far away, thereby need not set up more lamp pearl on certain length's circuit board, realize reducing the cost of LED light source. The channel strips serve to fix the strip-shaped lens and the LED light source at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 3 is a schematic partial structural diagram of a display device according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic view at A in FIG. 3;
fig. 5 is a schematic view of a partial structure of a display device according to an embodiment of the present invention;
fig. 6 is a schematic view of a partial structure of a display device according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1. a backlight module; 11. installing a frame; 111. a lower plate; 112. a frame body; 113. mounting grooves; 1131. a detection hole; 12. a membrane; 121. a reflective plate; 122. a light guide plate; 13. an LED light source; 131. a flexible circuit board; 132. a surface-mounted LED; 14. a channel strip; 141. fixing grooves; 15. a strip lens; 151. a plane; 152. a convex arc surface; 2. a temperature sensor; 21. an infrared temperature sensor; 3. a reminder device; 31. a light emitting diode; 32. a regulated power supply module; 35. a reminding unit; 4. a light-impermeable layer; 6. a display module; 61. a display frame; 62. a diffusion sheet; 63. a brightness enhancement film; 64. and a liquid crystal screen.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 and fig. 2, a display device according to the present invention will be described. A display device comprises a display module 6 and a backlight module 1, wherein the display module 6 is fixed on the backlight module 1, the light-emitting side of the backlight module 1 faces the light-in side of the display module 6, the backlight module 1 comprises a mounting frame 11 and a diaphragm 12, the mounting frame 11 is provided with a mounting groove 113, and the diaphragm 12 is arranged in the mounting groove 113, and the display device is characterized in that the backlight module 1 further comprises a groove-shaped strip 14, a strip-shaped lens 15 and a strip-shaped LED light source 13; the groove type strip 14, the strip lens 15 and the LED light source 13 are arranged in the mounting groove 113
The channel bar 14 is disposed along a length direction of the installation groove 113, and the channel bar 14 has an installation groove 141 disposed along a length direction thereof;
the strip-shaped lens 15 is arranged along the length direction of the groove-shaped strip 14 in the length direction, the strip-shaped lens 15 covers the opening of the fixing groove 141, the section, perpendicular to the length direction, of one side surface of the strip-shaped lens 15 is a convex arc surface 152 and faces the diaphragm 12, the other side surface of the strip-shaped lens 15 is a plane 151, and the plane 151 faces the fixing groove 141 and is fixed on the groove-shaped strip 14;
the LED light source 13 is arranged in the fixing groove 141, and the light emitting side of the LED light source 13 faces the plane 151 of the strip-shaped lens 15;
the LED light source 13 comprises a circuit board and a plurality of lamp beads, all the lamp beads are arranged along the length direction of the circuit board, and each lamp bead is electrically connected with and fixed on the circuit board.
The utility model provides a pair of display device, compared with the prior art, plane 151 plays and fixes LED light source 13 on bar lens 15 effect, the light that LED light source 13 sent can pass through bar lens 15 plane 151, protruding cambered surface 152 enters into in diaphragm 12, protruding cambered surface 152 has the divergence to the light through plane 151, the light that each lamp pearl sent has increased irradiation range behind bar lens 15, thereby the light that forms behind bar lens 15 of the light of adjacent lamp pearl intersects easily together, distance between the adjacent lamp pearl can set up far away, thereby need not set up more lamp pearl on certain length's the circuit board, realize reducing LED light source 13's cost. The groove type bar 14 functions to fix the bar lens 15 and the LED light source 13 at the same time.
Specifically, the strip lens 15 is provided as a polycarbonate mirror or a transparent resin mirror.
Further, please refer to fig. 1 together, as the utility model provides a specific implementation of a display device, the circuit board is established to flexible circuit board 131, and each lamp pearl is all established to paster LED132, and all paster LEDs 132 evenly set up along flexible circuit board 131's length direction, and each paster LED 132's light has improved irradiation range after passing through bar lens 15 to adjacent each paster LED 132's light passes through bar lens 15 and forms light crossing together easily, makes the region between the adjacent paster LED132 can not have obvious dim state. Since the lights of the adjacent patch LEDs 132 are easily intersected after passing through the strip lens 15, the distance between the adjacent patch LEDs 132 can be set to be long, so that a large number of patch LEDs 132 do not need to be arranged on the flexible circuit board 131 with a certain length.
Specifically, the display device further includes a connecting wire electrically connected to a terminal of the LED light source 13, and the connecting wire is inserted into the groove strip 14 to facilitate power on of the LED light source 13.
Further, please refer to fig. 2 to 4, as a specific embodiment of the display device provided by the present invention, the display device further includes a temperature sensor 2 and a reminding device 3, the mounting frame 11 is provided with a detection hole 1131, one end of the detection hole 1131 penetrates into the mounting groove 113, the temperature sensor 2 is fixed in the detection hole 1131 and avoids the diaphragm 12, and the temperature sensor 2 is used for detecting the temperature in the mounting groove 113;
reminding device 3 electricity is connected in temperature sensor 2, and reminding device 3 is located outside backlight unit 1 to remind the user when the temperature in mounting groove 113 is unusual.
Specifically, referring to fig. 2, the mounting frame 11 includes a frame 112 and a lower plate 111, the frame 112 is fixed to one side of the lower plate 111, and a mounting groove 113 is formed between the inner side of the frame 112 and the lower plate 111.
Optimally, referring to fig. 2, the display module 6 includes a display frame 61, a diffusion sheet 62, a brightness enhancement sheet 63 and a liquid crystal screen 64, the display frame 61 is fixed on a side of the frame 112 away from the lower plate 111, the diffusion sheet 62, the brightness enhancement sheet 63 and the liquid crystal screen 64 are located between the frame 112 and the display frame 61, the diffusion sheet 62, the brightness enhancement sheet 63 and the liquid crystal screen 64 are sequentially stacked, the diffusion sheet 62 and the brightness enhancement sheet 63 are embedded in the frame 112 and cover the notch of the mounting groove 113, the liquid crystal screen 64 is embedded in the display frame 61, and the conductive end of the liquid crystal screen 64 penetrates through the display frame 61;
the diaphragm 12 includes a reflection plate 121 and a light guide plate 122, the reflection plate 121 and the light guide plate 122 are sequentially stacked, the channel strip 14 is fixed on a side wall of the frame 112 facing the mounting groove 113, and a light emitting side of the light source faces the light guide plate 122.
Preferably, the frame 112 is a rubber frame.
Further, refer to fig. 4, as a specific implementation manner of the display device provided by the present invention, one end of the detection hole 1131 deviating from the mounting groove 113 runs through to the outside of the mounting frame 11, and one end of the detection hole 1131 deviating from the mounting groove 113 is convenient for the external structure to be electrically connected with the temperature sensor 2.
Further, please refer to fig. 4, as a specific embodiment of the present invention, the end face of the detecting end of the temperature sensor 2 and the inner side wall of the end portion of the detecting hole 1131 penetrating through the mounting groove 113 are flush, so that the temperature of the end face of the detecting end of the temperature sensor 2 in the backlight module 1 is more accurate.
Further, please refer to fig. 4, as a specific embodiment of the present invention, the display device further includes a light impermeable layer 4, the light impermeable layer 4 is located between the inner wall of the detection hole 1131 and the temperature sensor 2, the temperature sensor 2 is fixed in the detection hole 1131 through the light impermeable layer 4, the light in the backlight module 1 is prevented from leaking out of the backlight module 1 from between the inner wall of the detection hole 1131 and the temperature sensor 2, and the display effect of the display device is ensured.
Specifically, the opaque layer 4 is a black glue layer, which is convenient to use.
Further, referring to fig. 5 and fig. 6, as a specific embodiment of the display device provided by the present invention, the temperature sensor 2 is set as the infrared temperature sensor 21 or the negative temperature thermistor VR, which is simple in structure and very practical.
Further, please refer to fig. 5, as a specific embodiment of the present invention, when the temperature sensor 2 is set as the ntr thermistor VR, the reminding device 3 includes a light emitting diode 31 and a regulated power supply module 32, the output terminal of the regulated power supply module 32 is electrically connected to one end of the ntr thermistor VR, the other end of the ntr thermistor VR is connected to the anode of the light emitting diode 31, and the cathode of the light emitting diode 31 is grounded.
The resistance of the negative temperature thermistor VR decreases with the increase of the internal temperature of the backlight module 1. When the internal temperature of the backlight module 1 reaches an abnormal temperature, the resistance of the negative temperature thermistor VR is small, the current flowing through the negative temperature thermistor VR and the light emitting diode 31 is large, and the light emitting diode 31 emits light. The voltage-stabilized power supply module 32 ensures that current flows to the light-emitting diode 31 and the negative temperature thermistor VR, and ensures normal use of the reminding device 3.
Specifically, the regulated power supply module 32 is provided as a regulated power supply chip.
Further, please refer to fig. 6, as a specific embodiment of the display device provided by the present invention, when the temperature sensor 2 is set as the infrared temperature sensor 21, the reminding device 3 includes a comparator OA, a triode Q and a reminding unit 35;
the output end of the infrared temperature sensor 21 is connected to the in-phase end of the comparator OA, a first power supply voltage is input into the power supply end of the infrared temperature sensor 21, and the grounding end of the infrared temperature sensor 21 is grounded;
the output end of the comparator OA is electrically connected with the base electrode of the triode Q;
the collector of the triode Q inputs the second power supply voltage VCC2, the emitter of the triode Q is grounded, and the power supply end of the reminding unit 35 is connected to the collector of the triode Q.
The infrared temperature sensor 21 detects the temperature in the backlight module 1, when the temperature in the backlight module 1 reaches an abnormal temperature, the output voltage of the infrared temperature sensor 21 received by the in-phase end of the comparator OA is greater than the preset voltage Vrep, the output end of the comparator OA outputs a high level, the base of the triode Q receives the high level and is conducted, and then the second power supply voltage VCC2 supplies power to the reminding unit 35, so that the reminding unit 35 works normally.
Specifically, the transistor Q is an NPN transistor.
Further, as the utility model provides a pair of a display device's a concrete implementation mode reminds unit 35 to establish to bee calling organ or flasher, reaches the effect of in time reminding the user, and is very convenient.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A display device comprises a display module and a backlight module, wherein the display module is fixed on the backlight module, the light-emitting side of the backlight module faces the light-in side of the display module, the backlight module comprises an installation frame and a diaphragm, the installation frame is provided with an installation groove, and the diaphragm is arranged in the installation groove; the groove-shaped strip, the strip-shaped lens and the LED light source are arranged in the mounting groove;
the groove-shaped strip is arranged along the length direction of the mounting groove and is provided with a fixing groove arranged along the length direction of the groove-shaped strip;
the length direction of the strip-shaped lens is arranged along the length direction of the groove-shaped strip, the strip-shaped lens covers the opening of the fixed groove, the section, perpendicular to the length direction, of the surface of one side of the strip-shaped lens is a convex arc surface and faces the diaphragm, the surface of the other side of the strip-shaped lens is a plane, and the plane faces the fixed groove and is fixed on the groove-shaped strip;
the LED light source is arranged in the fixing groove, and the light emitting side of the LED light source faces to the plane of the strip-shaped lens;
the LED light source comprises a circuit board and a plurality of lamp beads, all the lamp beads are arranged along the length direction of the circuit board, and the lamp beads are electrically connected and fixed on the circuit board.
2. The display device of claim 1, wherein the circuit board is a flexible circuit board, each of the lamp beads is a patch LED, and all the patch LEDs are uniformly arranged along a length direction of the flexible circuit board.
3. The display device according to claim 1, wherein the display device further comprises a temperature sensor and a reminding device, a detection hole is formed in the mounting frame, one end of the detection hole penetrates into the mounting groove, the temperature sensor is fixed in the detection hole and avoids the diaphragm, and the temperature sensor is used for detecting the temperature in the mounting groove;
the reminding device is electrically connected with the temperature sensor, is positioned outside the backlight module and is used for reminding a user when the temperature in the mounting groove is abnormal.
4. The display device as claimed in claim 3, wherein an end of the detection hole facing away from the mounting groove penetrates to an outer side of the mounting frame.
5. The display device according to claim 4, wherein an end surface of the sensing end of the temperature sensor is flush with an inner sidewall of an end portion of the sensing hole penetrating the mounting groove.
6. The display device according to claim 5, further comprising a light-impermeable layer between an inner wall of the detection hole and the temperature sensor, wherein the temperature sensor is fixed in the detection hole through the light-impermeable layer.
7. The display device according to claim 3, wherein the temperature sensor is provided as an infrared temperature sensor or a negative temperature thermistor.
8. The display device according to claim 7, wherein when the temperature sensor is set as the ntc thermistor, the prompting device comprises a light emitting diode and a regulated power supply module, an output end of the regulated power supply module is electrically connected to one end of the ntc thermistor, the other end of the ntc thermistor is connected to a positive electrode of the light emitting diode, and a negative electrode of the light emitting diode is grounded.
9. The display device according to claim 7, wherein when the temperature sensor is set as an infrared temperature sensor, the reminding device comprises a comparator, a triode and a reminding unit;
the output end of the infrared temperature sensor is connected to the in-phase end of the comparator, a first power supply voltage is input into the power supply end of the infrared temperature sensor, and the grounding end of the infrared temperature sensor is grounded;
the output end of the comparator is electrically connected with the base electrode of the triode;
and a second power supply voltage is input into a collector electrode of the triode, an emitter electrode of the triode is grounded, and a power supply end of the reminding unit is connected with the collector electrode of the triode.
10. The display device according to claim 9, wherein the warning unit is provided as a buzzer or a flash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021223067.9U CN212781591U (en) | 2020-06-28 | 2020-06-28 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021223067.9U CN212781591U (en) | 2020-06-28 | 2020-06-28 | Display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212781591U true CN212781591U (en) | 2021-03-23 |
Family
ID=75086938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021223067.9U Active CN212781591U (en) | 2020-06-28 | 2020-06-28 | Display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212781591U (en) |
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2020
- 2020-06-28 CN CN202021223067.9U patent/CN212781591U/en active Active
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