CN209803523U - backlight power supply structure of liquid crystal display - Google Patents
backlight power supply structure of liquid crystal display Download PDFInfo
- Publication number
- CN209803523U CN209803523U CN201920965445.1U CN201920965445U CN209803523U CN 209803523 U CN209803523 U CN 209803523U CN 201920965445 U CN201920965445 U CN 201920965445U CN 209803523 U CN209803523 U CN 209803523U
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- support frame
- drain pan
- guide plate
- liquid crystal
- power supply
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Abstract
The utility model provides a backlight source structure of LCD screen, including drain pan, reflectance coating, light guide plate, support frame and membrane of adding lustre to, the reflectance coating is located the drain pan bottom, the drain pan has the portion of bending by this drain pan stamping forming all around, the portion of bending is equipped with the through-hole of rectangle, the through-hole with set up in the sand grip in the support frame outside corresponds the card and goes into to be connected, support frame upper end is equipped with the mounting groove, be equipped with in the mounting groove the light guide plate one side is equipped with LED lamp strip the inboard both ends of support frame are equipped with the opening, the opening with locate the protruding buckle at membrane of adding lustre to is connected. Implement the utility model discloses a power assembly is shaded compactly, and is luminous even, exempts from screw assembly, and assembles simply, and the leakproofness is good, avoids producing the side light leak, therefore the product percent of pass is high.
Description
Technical Field
the utility model relates to a power structure technical field in a poor light of LCD screen, in particular to power structure in a poor light of LCD screen.
Background
As mobile phones and tablet computers are widely used in life of people, electronic products of the mobile phones and the tablet computers become more and more tools which cannot be used for life, and in the electronic products of the mobile phones, the tablet computers and the like, the backlight power supply structure of the liquid crystal screen plays a crucial role in the production qualification rate and the display effect of the liquid crystal screen. However, the backlight power supply structures of most liquid crystal screens have complex installation and fixing procedures, uneven light emission and poor sealing performance, side light leakage is easy to generate, and the product yield is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a can realize exempting from the screw fixation, convenient assembling, the leakproofness is good, is difficult for producing the backlight structure of LCD screen of side light leak.
The technical scheme of the utility model is realized like this:
The utility model discloses a backlight source structure of LCD screen, including drain pan, reflectance coating, light guide plate, support frame and membrane of adding lustre to, the reflectance coating is located the drain pan bottom, the drain pan has the portion of bending by this drain pan stamping forming all around, the portion of bending is equipped with the through-hole of rectangle, the through-hole with set up in the sand grip in the support frame outside corresponds the card and goes into to be connected, support frame upper end is equipped with the mounting groove, be equipped with in the mounting groove the light guide plate one side is equipped with LED lamp strip the inboard both ends of support frame are equipped with the opening, the opening with locate the protruding buckle at membrane of adding lustre to both ends is connected.
Furthermore, a groove for installing a flexible circuit board is formed in one side of the bending portion, one end of the flexible circuit board is connected with the LED lamp strip, and a connecting terminal for connecting and supplying power is arranged at the other end of the flexible circuit board.
Furthermore, the LED lamp strip comprises a plurality of LED lamp beads which are arranged linearly, and the light emitting surface of each LED lamp bead points to one side surface of the light guide plate.
Furthermore, the protective frame further comprises a protective frame and an adhesive layer arranged on the lower surface of the protective frame, and the protective frame is attached to the bottom shell along the peripheral edge of the upper surface of the bright enhancement film through the adhesive layer.
Implement the utility model discloses a backlight source structure of LCD screen has following profitable technological effect:
The backlight power supply is compact in assembly, uniform in light emission, free of screw assembly, simple in assembly, good in sealing performance, and free of side light leakage, and therefore the product qualification rate is high.
drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is an exploded schematic view of a backlight power supply structure of a liquid crystal display panel according to the present invention;
FIG. 2 is a schematic structural diagram of a backlight power supply of the LCD panel of the present invention;
Fig. 3 is the utility model discloses a backlight structure center support frame and LED lamp strip schematic diagram of LCD screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Please refer to fig. 1, fig. 3 and fig. 3, an embodiment of the present invention provides a backlight power structure of a liquid crystal display, including a bottom case 1, a reflective film 2, a light guide plate 3, a support frame 4 and a brightness enhancement film 5, the reflective film 2 is disposed at the bottom of the bottom case 1, the bottom case 1 has a bending portion 11 formed by stamping the bottom case 1 all around, the bending portion 11 is provided with a rectangular through hole 12, the through hole 12 corresponds to be clamped into and connected with a convex strip 41 disposed at the outer side of the support frame 4, the upper end of the support frame 4 is provided with a mounting groove 42, the mounting groove 42 is provided with the light guide plate 3, one side of the light guide plate 3 is provided with an LED light bar 6, two ends inside the support frame 4 are respectively provided with four openings 43.
According to one embodiment, a groove 13 for mounting the flexible circuit board 7 is formed in one side of the bending portion 11, one end of the flexible circuit board 7 is connected with the LED light bar 6, and a connection terminal 71 for connecting and supplying power is formed in the other end of the flexible circuit board.
According to one embodiment, the LED lamp strip 6 comprises a plurality of LED lamp beads which are arranged in a straight line, and the light emitting surfaces of the LED lamp beads point to one side surface of the light guide plate 3.
According to one embodiment, the backlight power supply structure of the liquid crystal display further comprises a protective frame 8 and an adhesive layer 9 arranged on the lower surface of the protective frame 8, and the protective frame 8 is attached to the bottom case 1 along the peripheral edge of the upper surface of the brightness enhancement film 5 through the adhesive layer 9.
Implement the utility model discloses a backlight source structure of LCD screen has following profitable technological effect:
The backlight power supply is compact in assembly, uniform in light emission, free of screw assembly, simple in assembly, good in sealing performance, and free of side light leakage, and therefore the product qualification rate is high.
the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a backlight source structure of LCD screen, its characterized in that, includes drain pan, reflectance coating, light guide plate, support frame and membrane of adding lustre to, the reflectance coating is located the drain pan bottom, the drain pan has the portion of bending by this drain pan stamping forming all around, the portion of bending is equipped with the through-hole of rectangle, the through-hole with set up in the sand grip in the support frame outside corresponds the card and goes into to be connected, support frame upper end is equipped with the mounting groove, be equipped with in the mounting groove the light guide plate one side is equipped with LED lamp strip the inboard both ends of support frame are equipped with the opening, the opening with locate the protruding buckle at membrane of adding lustre to is connected.
2. The backlight power supply structure of the liquid crystal display panel according to claim 1, wherein a groove for mounting a flexible printed circuit board is formed on one side of the bending portion, one end of the flexible printed circuit board is connected with the LED light bar, and a connecting terminal for connecting power is formed on the other end of the flexible printed circuit board.
3. The backlight power supply structure of the liquid crystal display of claim 1, wherein the LED light bar comprises a plurality of LED light beads arranged in a straight line, and a light emitting surface of each LED light bead points to one side surface of the light guide plate.
4. The backlight power supply structure of the liquid crystal display according to claim 1, further comprising a protective frame and an adhesive layer disposed on a lower surface of the protective frame, wherein the protective frame is attached to the bottom case along the peripheral edge of the upper surface of the brightness enhancement film through the adhesive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920965445.1U CN209803523U (en) | 2019-06-25 | 2019-06-25 | backlight power supply structure of liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920965445.1U CN209803523U (en) | 2019-06-25 | 2019-06-25 | backlight power supply structure of liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209803523U true CN209803523U (en) | 2019-12-17 |
Family
ID=68834090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920965445.1U Active CN209803523U (en) | 2019-06-25 | 2019-06-25 | backlight power supply structure of liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209803523U (en) |
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2019
- 2019-06-25 CN CN201920965445.1U patent/CN209803523U/en active Active
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