CN209231671U - It can assist the backlight for preventing liquid crystal display to lack pen - Google Patents
It can assist the backlight for preventing liquid crystal display to lack pen Download PDFInfo
- Publication number
- CN209231671U CN209231671U CN201822203234.2U CN201822203234U CN209231671U CN 209231671 U CN209231671 U CN 209231671U CN 201822203234 U CN201822203234 U CN 201822203234U CN 209231671 U CN209231671 U CN 209231671U
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- China
- Prior art keywords
- liquid crystal
- crystal display
- light guide
- guide plate
- backlight
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Abstract
The backlight for preventing liquid crystal display to lack pen can be assisted the utility model discloses one kind, it includes diffusion barrier, light guide plate and reflective membrane；The upper surface two sides of light guide plate are equipped with the step of sinking, and diffusion barrier is set in the non-sunken regions in light guide plate upper surface, and reflective membrane is set under the lower surface of light guide plate.The utility model is when with assembling liquid crystal display, the step of light guide plate two sides setting just corresponds at liquid crystal display metal pins, even if liquid crystal display metal pins are welded to fit closely between backlight on PCB and be welded and fixed, the metal pins of liquid crystal display avoid poor contact between metal pins and glass of liquid crystal display as caused by external force and the problem of showing scarce pen occur also without other external forces.Meanwhile the step design on the light guide plate also has the function of preventing liquid crystal positional shift, prevents having gap to influence display effect hence into dust impurity between liquid crystal and backlight.
Description
Technical field
The utility model relates to a kind of backlights, and the backlight for preventing liquid crystal display to lack pen can be assisted more particularly to one kind
Plate.
Background technique
The fixation currently, common liquid crystal displays connect with metal pins of many industries and backlight are closely arranged in pairs or groups, has
The effect that liquid crystal display is shown can be observed under dark surrounds.
Liquid crystal display often after metal pins are welded in printed board, fits closely between backlight, leads to liquid
The metal pins of crystal display persistently by the pressure of backlight, are brought between metal pins and glass of liquid crystal display for a long time
Contact problems, the phenomenon that causing liquid crystal display to be easy to appear scarce pen.
Therefore it needs one kind that the method for preventing liquid crystal display to lack pen can be assisted to improve the production yield of desired product, mentions
Mass per liter guarantees the long-time service reliability of product.
Utility model content
The purpose of this utility model is that in view of the deficiencies of the prior art, providing one kind can assist preventing liquid crystal display
Device lacks the backlight of pen.
This backlight for assisting that liquid crystal display is prevented to lack pen provided by the utility model, it includes diffusion barrier, leads
Tabula rasa and reflective membrane；The upper surface two sides of light guide plate are equipped with the step of sinking, under diffusion barrier is set to light guide plate upper surface not
On heavy region, reflective membrane is set under the lower surface of light guide plate.
In a specific embodiment, make the light guide plate stripe board, cross section is convex section, light guide plate
Length direction two sides be equipped with the step.
Preferably, making length direction one end of the light guide plate convenient for the bathrocephaly of inserting.
In order to improve assembly convenient degree, the arc convenient for assembly is equipped at the length direction center of the bathrocephaly outer end
Mouthful.
In a specific embodiment, make 0.5~1.5mm of submergence depth of the step.
In a specific embodiment, make 2.5~4.0mm of width of the step.
The utility model is by the way that when with assembling liquid crystal display, the step of light guide plate two sides setting just corresponds to liquid crystal
Show at device metal pins, be welded and fixed even if liquid crystal display metal pins are welded to fit closely between backlight on PCB,
The metal pins of liquid crystal display avoid the metal pins as caused by external force and liquid crystal also without other external forces
Show poor contact between device glass and the problem of showing scarce pen occurs.Meanwhile the step design on the light guide plate also has and prevents
Liquid crystal positional shift prevents from playing the role of gap between liquid crystal and backlight hence into dust impurity influence display effect.
Detailed description of the invention
Fig. 1 is the schematic front view of one preferred embodiment of the utility model.
Fig. 2 is the schematic top plan view of this preferred embodiment.
Fig. 3 is the assembly schematic front view of this preferred implementation and liquid crystal display.
Fig. 4 is the side view enlarged diagram of this preferred implementation and liquid crystal display.
Illustrate serial number:
1-diffusion barrier；
2-light guide plates, 21-steps, 22-bathrocephalies, 23-arc ports；
3-reflective membranes；
4-liquid crystal displays；
5-metal pins, 51-connection buckles；
6-LED light.
Specific embodiment
As shown in Figure 1 and Figure 2, this backlight for assisting that liquid crystal display is prevented to lack pen provided in this embodiment, including
Diffusion barrier 1, light guide plate 2 and reflective membrane 3.
Light guide plate 2 is stripe board, and cross section is convex section, and the length direction two sides of light guide plate are equipped with step 21；
Step is perpendicular steps, in order to guarantee that backlight does not contact the connection buckle between liquid crystal display metal pins and big sheet glass
Least significant end, step depth generally between 0.5~1.5mm, and in the present embodiment liquid crystal display 4 metal pins 5 and liquid
The least significant end depth of connection buckle 51 between the big sheet glass of crystal display be 0.5mm, therefore in the present embodiment step depth
For 0.5 mm；Width of the maximum width value of step 21 between the big sheet glass of liquid crystal display and liquid crystal display visible area is poor
The 1/2 of value, 1/2 of the width differential between the big sheet glass 102 of liquid crystal display and liquid crystal display visible area are 2.5mm, therefore
The width of step is 2.5mm in the present embodiment；When liquid crystal display and backlight assemble, due to the setting of step, isolation
Stress between liquid crystal display metal pins and backlight, and then the technology for solving assembly difficulty existing in the prior art is asked
Topic.Length direction one end of light guide plate is designed as bathrocephaly 22 in order to insert simultaneously, and in the length side of bathrocephaly outer end
Arc port 23 is equipped with to center in order to assemble.
As shown in Figure 3, Figure 4, diffusion barrier 1 is set to the region in 2 upper surface top bar of light guide plate, the diffusion barrier mainly by
Astigmatic optics particle composition, the light that light guide plate reflects can scatter when passing through diffusion barrier, make surface brightness can be more evenly.
Reflective membrane 3 is set to the lower surface of light guide plate, and the light that light guide plate is refracted to lower section is reflected back again, improves light and utilizes
Rate.Simultaneously can also be in the side mounted LED lamp 6 of light guide plate, LED light can be connected in circuit board.
For the present embodiment when with assembling liquid crystal display, the step of light guide plate two sides setting just corresponds to liquid crystal display gold
Belong at pin, is welded and fixed even if liquid crystal display metal pins are welded to fit closely between backlight on PCB, liquid crystal
Show that the metal pins of device also without other external forces, avoid the metal pins as caused by external force and liquid crystal display glass
Poor contact between glass and there is the problem of showing scarce pen.Meanwhile the step design on the light guide plate also has prevents liquid crystal position
It sets offset, prevent from playing the role of gap between liquid crystal and backlight hence into dust impurity influence display effect.
Claims (6)
1. one kind can assist preventing liquid crystal display to lack the backlight of pen, it is characterised in that: it includes diffusion barrier, light guide plate and anti-
Light film；The upper surface two sides of light guide plate are equipped with the step of sinking, and diffusion barrier is set in the non-sunken regions in light guide plate upper surface,
Reflective membrane is set under the lower surface of light guide plate.
2. the backlight for preventing liquid crystal display to lack pen can be assisted as described in claim 1, it is characterised in that: the light guide plate
For stripe board, cross section is convex section, and the length direction two sides of light guide plate are equipped with the step.
3. the backlight for preventing liquid crystal display to lack pen can be assisted as claimed in claim 2, it is characterised in that: the light guide plate
Length direction one end be convenient for inserting bathrocephaly.
4. the backlight for preventing liquid crystal display to lack pen can be assisted as claimed in claim 3, it is characterised in that: the bathrocephaly
The arc port that the length direction center of outer end is equipped with convenient for assembly.
5. the backlight for preventing liquid crystal display to lack pen can be assisted as claimed in claim 2, it is characterised in that: the step
Submergence depth is 0.5~1.5mm.
6. the backlight for preventing liquid crystal display to lack pen can be assisted as claimed in claim 2, it is characterised in that: the step
Width is 2.5~4.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822203234.2U CN209231671U (en) | 2018-12-26 | 2018-12-26 | It can assist the backlight for preventing liquid crystal display to lack pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822203234.2U CN209231671U (en) | 2018-12-26 | 2018-12-26 | It can assist the backlight for preventing liquid crystal display to lack pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209231671U true CN209231671U (en) | 2019-08-09 |
Family
ID=67509399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822203234.2U Active CN209231671U (en) | 2018-12-26 | 2018-12-26 | It can assist the backlight for preventing liquid crystal display to lack pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209231671U (en) |
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2018
- 2018-12-26 CN CN201822203234.2U patent/CN209231671U/en active Active
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