CN207635157U - Lamp bar, backlight module and display device - Google Patents
Lamp bar, backlight module and display device Download PDFInfo
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- CN207635157U CN207635157U CN201820003697.1U CN201820003697U CN207635157U CN 207635157 U CN207635157 U CN 207635157U CN 201820003697 U CN201820003697 U CN 201820003697U CN 207635157 U CN207635157 U CN 207635157U
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- lamp bar
- column structure
- backlight module
- luminescence unit
- utility
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Abstract
The utility model discloses a kind of lamp bars, including luminescence unit and column structure；The height of the column structure is more than the height of the luminescence unit, and between column structure setting luminescence unit described at least two.The invention also discloses a kind of backlight module and display devices.Lamp bar, backlight module and the display device of the proposition of the utility model, can improve the picture effect of display device.
Description
Technical field
The utility model is related to display technology field, a kind of lamp bar, backlight module and display device are particularly related to.
Background technology
At present popular display mostly uses greatly side-edge type backlight structure, with current display side entering type backlight product
To the narrow frame even development of Rimless, the distance A of effective luminous zone to LED light-emitting surfaces is smaller and smaller (referring to Fig. 1 b), causes
The light mixing distance of backlight is insufficient (mixed light principle is with reference to figure 1a) so that (the corresponding display area of LED emission sides has hot-spot
Light and shade uneven phenomenon, also known as firefly phenomenon) bad risk it is higher and higher.
Currently, an effective method for theoretically improving Hot-spot is to increase the light emitting angers of LED in the horizontal direction,
A key factor for influencing LED light emitting angers is LED fluorescent glue packaged type.But currently used LED packaged types are recessed
Glue (with reference to figure 1c) peace glue (with reference to figure 1d), is limited to LED packaged types, the light emitting anger of major LED suppliers is no more than
120 ° (with reference to figure 1e).In addition, convex glue (with reference to figure 1f) encapsulation LED tend to occur the problems such as LED fluorescent powder falls off without
It is used.
Therefore, the inventor of the utility model has found side entering type commonly used in the prior art when realizing the utility model
Display has at least the following problems：
1, narrow frame even Rimless product causes mixed light region to reduce；
2, the flat glue of LED and the encapsulation of recessed glue cause the horizontal light emitting angers of LED small, and light mixing effect is poor；
3, the encapsulation of LED convex glue is susceptible to light guide plate (LGP) and squeezes LED fluorescent powder to cause fluorescent powder to fall off bad.
Utility model content
In view of this, the first purpose of the utility model embodiment is, a kind of lamp bar, backlight module and display dress are proposed
It sets, the picture effect of display device can be improved.
Based on above-mentioned purpose, the utility model embodiment in a first aspect, provide a kind of lamp bar, including luminescence unit and
Column structure；The height of the column structure is more than the height of the luminescence unit, and the column structure is arranged at least two
Between the luminescence unit.
Optionally, it is both provided with the column structure between every group of adjacent light-emitting units.
Optionally, the column structure is far from the tower structure for being in the trend that is gradually reduced on lamp bar direction.
Optionally, the tower structure includes multiple frustums stacked mutually, and the floor space of the frustum is more than its top surface
Product, and the tower structure is made of clear material.
Optionally, the tower structure includes multiple frustums stacked mutually, and the top area of the frustum is more than its bottom surface
Product, and the tower structure outer surface is provided with reflectance coating.
Optionally, the luminescence unit is LED, and the LED is that convex glue encapsulates or CSP is encapsulated.
The second aspect of the utility model embodiment provides a kind of backlight module, including such as preceding any one of them lamp
Item.
Optionally, the backlight module further includes glue frame and light guide plate；The lamp bar is fixed in the glue frame；
The glue frame includes stupefied muscle, and the stupefied muscle is perpendicular to the light guide plate surface and is parallel to the lamp bar, described stupefied
Rubber parts is provided between muscle and light guide plate.
Optionally, the backlight module further includes lower diffusion sheet, and black surround is printed on the lower diffusion sheet.
The third aspect of the utility model embodiment provides a kind of display device, including as preceding any one of them is carried on the back
Optical mode group.
From the above it can be seen that lamp bar, backlight module and display device that the utility model embodiment provides, pass through
Setting height is more than the column structure of the luminescence unit in lamp bar, when lamp bar is mounted on backlight module, due to having more
High column structure support so that luminescence unit is not easily susceptible to the extruding of light guide plate, asking to be less prone to that fluorescent powder falls off
Topic.
Description of the drawings
Fig. 1 a are the mixed light schematic diagram of side entering type display in the prior art；
Fig. 1 b are position relationship schematic diagram between the effective luminous zone and LED of side entering type display in the prior art；
Fig. 1 c are the structural schematic diagram of the recessed glue of encapsulation LED in the prior art；
Fig. 1 d are the structural schematic diagram of the flat glue of encapsulation LED in the prior art；
Fig. 1 e are the half light intensity light emitting anger schematic diagram that prior art concave glue or flat glue encapsulate LED；
Fig. 1 f are the structural schematic diagram of the convex glue of encapsulation LED in the prior art；
Fig. 2 is the structural schematic diagram of one embodiment of lamp bar provided by the utility model；
Fig. 3 is the part-structure schematic diagram of another embodiment of lamp bar provided by the utility model；
Fig. 4 is the part-structure schematic diagram of another embodiment of lamp bar provided by the utility model；
Fig. 5 is the part-structure schematic diagram of the further embodiment of lamp bar provided by the utility model；
Fig. 6 is the frustum angle schematic diagram in the further embodiment of lamp bar provided by the utility model；
Fig. 7 is the structural schematic diagram of one embodiment of backlight module provided by the utility model.
Specific implementation mode
To make the purpose of this utility model, technical solution and advantage be more clearly understood, below in conjunction with specific embodiment, and
With reference to attached drawing, the utility model is further described.
It should be noted that all statements for using " first " and " second " are for area in the utility model embodiment
Be divided to two non-equal entities of same names or non-equal parameter, it is seen that " first " " second " only for statement convenience,
The restriction to the utility model embodiment is should not be construed as, subsequent embodiment no longer illustrates this one by one.
The first aspect of the utility model, it is proposed that a kind of one embodiment of lamp bar improves the picture of display device
Effect.As shown in Fig. 2, the structural schematic diagram of one embodiment for lamp bar provided by the utility model.
The lamp bar 10, including luminescence unit 11 and column structure 12；The height of the column structure 12 is more than the hair
The height of light unit 11, and the column structure 12 is arranged between 2 luminescence units 11.
From above-described embodiment as can be seen that lamp bar provided by the utility model, high by being arranged between 2 luminescence units
Degree is more than the column structure of the luminescence unit, when lamp bar is mounted on backlight module, due to there is higher column structure branch
Support so that luminescence unit is not easily susceptible to the extruding of light guide plate, to be less prone to the problem of fluorescent powder falls off.
Preferably, in order to keep the effect of this supporting way more preferable, the column structure 12 may be provided in lamp bar 10
Heart position so that each luminescence unit 11 of its both sides can be by a degree of protection.
The utility model additionally provides another embodiment of the lamp bar.As shown in figure 3, being provided by the utility model
The part-structure schematic diagram of another embodiment of lamp bar.
The lamp bar 10, including luminescence unit 11 and column structure 12；The height of the column structure 12 is more than the hair
The height of light unit 11 is both provided with the column structure 12 between every group of adjacent light-emitting units 11, i.e. the luminescence unit 11
It is spaced and is arranged with column structure 12.
From above-described embodiment as can be seen that lamp bar provided by the utility model, by by the luminescence unit and column knot
Structure interval is arranged, when lamp bar is mounted on backlight module, due to having higher column structure branch beside each luminescence unit
Support so that luminescence unit is not easily susceptible to the extruding of light guide plate, to be less prone to the problem of fluorescent powder falls off.
It should be noted that consider luminescence unit small volume itself and the small-pitch situation of luminescence unit, it is described
Column structure may not be is respectively provided with the column structure between every group of adjacent light-emitting units, if but may be used each
Dry luminescence unit is arranged 1 column structure, i.e., there are luminescence unit (tools more than at least two between adjacent column structure
Body number can be selected according to actual conditions).In this way, on the one hand can ensure that each luminescence unit can have to a certain degree
Protection, on the other hand, it is possible to reduce the setting of column structure so that structure and technique are simpler.
The utility model additionally provides another embodiment of the lamp bar.As shown in figure 4, being provided by the utility model
The part-structure schematic diagram of another embodiment of lamp bar.
The lamp bar 10, including luminescence unit 11 and column structure 12；The height of the column structure 12 is more than the hair
The height of light unit 11, and the column structure 12 is arranged between 2 luminescence units 11；Wherein, the column structure
12 is far from, in the tower structure for the trend that is gradually reduced, the tower structure includes multiple cones stacked mutually on lamp bar direction
The floor space of platform 121, the frustum 121 is more than its top area, and the tower structure is made of clear material；In this way, when hair
When the light that light unit 11 is sent out reaches the column structure 12, by the refraction twice of two sides of column structure 12, from LED
The light sent out is retrodeviated by the column structure from original light angle so that light emitting angle is increased.Optionally, described in composition
The transparent material of tower structure selects the material of light-permeable, such as acrylic board etc..
From above-described embodiment as can be seen that lamp bar provided by the utility model, is more than the luminous list by the way that height is arranged
The column structure of member, when lamp bar is mounted on backlight module, due to there is higher column structure to support so that luminescence unit is not
It is vulnerable to the extruding of light guide plate, to be less prone to the problem of fluorescent powder falls off；Meanwhile by higher column structure to shining
The light that unit is sent out is reflected so that light emitting angle is increased, and can be played the role of breaing up light, further be changed to play
The effect of kind Hot-spot；In addition, the column structure is used far from the tower-like knot on lamp bar direction being in the trend that is gradually reduced
On the one hand structure ensure that the stability of column structure by down big up small structure, on the other hand, with directly one frustum of setting
It compares, base diameter can suitably be reduced so that it is more suitable for being produced between small-pitch luminescence unit, together
When, top diameter can suitably be increased, it is made more to stablize the support of light guide plate.
The utility model additionally provides another embodiment of the lamp bar.As shown in figure 5, being provided by the utility model
The part-structure schematic diagram of the further embodiment of lamp bar.
The lamp bar 10, including luminescence unit 11 and column structure 12；The height of the column structure 12 is more than the hair
The height of light unit 11, and the column structure 12 is arranged between 2 luminescence units 11；Wherein, the column structure
12 is far from, in the tower structure for the trend that is gradually reduced, the tower structure includes multiple cones stacked mutually on lamp bar direction
The top area of platform 122, the frustum 122 is more than its floor space (also that is, as shown in fig. 6, the section of the frustum 122 is formed
Trapezoidal base angle a be more than 90 °), and the tower structure outer surface is provided with reflectance coating；In this way, when luminescence unit 11 is sent out
Light reach the column structure 12 when, pass through the reflection of the reflectance coating on column structure 12 so that light emitting angle is increased.
From above-described embodiment as can be seen that lamp bar provided by the utility model, is more than the luminous list by the way that height is arranged
The column structure of member, when lamp bar is mounted on backlight module, due to there is higher column structure to support so that luminescence unit is not
It is vulnerable to the extruding of light guide plate, to be less prone to the problem of fluorescent powder falls off；Meanwhile by higher column structure to shining
The light that unit is sent out is reflected so that light emitting angle is increased, and can be played the role of breaing up light, further be changed to play
The effect of kind Hot-spot；In addition, the column structure is used far from the tower-like knot on lamp bar direction being in the trend that is gradually reduced
On the one hand structure ensure that the stability of column structure by down big up small structure, on the other hand, with directly one frustum of setting
It compares, base diameter can suitably be reduced so that it is more suitable for being produced between small-pitch luminescence unit, together
When, top diameter can suitably be increased, it is made more to stablize the support of light guide plate.
Optionally, in above-mentioned arbitrary lamp bar embodiment, the luminescence unit 11 can be LED, the LED be convex glue encapsulate or
CSP is encapsulated, and it is more than 120 ° of light emitting angers of recessed glue used at present to make LED light emitting angers, reaches 140 ° of even higher light emitting angers, can be with
Play better light mixing effect；Simultaneously as the presence of column structure so that the structure of the lamp bar can be protected preferably
LED.Here, CSP, full name in English Chip Scale Package, refer to chip size packages, package dimension and chip core
Size is essentially identical, so the ratio of referred to as CSP, interior long term voyage and package area is about 1:1.1, it is every to meet this standard
Encapsulation can be referred to as CSP.
The second aspect of the utility model, it is proposed that a kind of one embodiment of backlight module can improve display device
Picture effect.
The backlight module includes the lamp bar 10 as described in aforementioned any embodiment.
From above-described embodiment as can be seen that backlight module provided by the utility model, big by the way that height is arranged in lamp bar
, due to there is higher column structure to support, make when lamp bar is mounted on backlight module in the column structure of the luminescence unit
The extruding that luminescence unit is not easily susceptible to light guide plate is obtained, to be less prone to the problem of fluorescent powder falls off.
The utility model also proposed another embodiment of the backlight module, can improve the picture effect of display device
Fruit.As shown in fig. 7, the structural schematic diagram of one embodiment for backlight module provided by the utility model.
The backlight module includes the lamp bar 10 as described in aforementioned any embodiment；
The backlight module further includes glue frame 30, light guide plate 20 and backboard 50；The lamp bar 10 is fixed on the backboard 50
On；
The glue frame 30 includes stupefied muscle 31, and the stupefied muscle 31 is perpendicular to 20 surface of the light guide plate and is parallel to the lamp bar
10, it is provided with rubber parts 40 between the stupefied muscle 31 and light guide plate 20.
From above-described embodiment as can be seen that backlight module provided by the utility model, big by the way that height is arranged in lamp bar
, due to there is higher column structure to support, make when lamp bar is mounted on backlight module in the column structure of the luminescence unit
The extruding that luminescence unit is not easily susceptible to light guide plate is obtained, to be less prone to the problem of fluorescent powder falls off.Due to the presence of convex glue, more
The Hot-spot problems caused by light leakage are easy tod produce, by the way that the rubber parts, Neng Gougai are arranged between stupefied muscle and light guide plate
Hot-spot problems caused by kind light leakage.
Optionally, in addition to the above implementation exceptions, the backlight module further includes lower diffusion sheet, is printed on the lower diffusion sheet
There is black surround, can also improve Hot-spot problems caused by light leakage.
In terms of the third of the utility model, it is proposed that a kind of one embodiment of display device can improve display device
Picture effect.
The display device includes the backlight module as described in aforementioned any embodiment.
It should be noted that the display device in the present embodiment can be：Mobile phone, tablet computer, television set, notebook electricity
The product or component of any display function with side entrance back source structure such as brain.
From above-described embodiment as can be seen that display device provided by the utility model, big by the way that height is arranged in lamp bar
, due to there is higher column structure to support, make when lamp bar is mounted on backlight module in the column structure of the luminescence unit
The extruding that luminescence unit is not easily susceptible to light guide plate is obtained, to be less prone to the problem of fluorescent powder falls off.
In the present invention, term " first ", " second ", " third " are used for description purposes only, and should not be understood as referring to
Show or imply relative importance.Term " multiple " refers to two or more, unless otherwise restricted clearly.
Those of ordinary skills in the art should understand that：The foregoing is merely specific embodiment of the utility model
, it is not intended to limit the utility model, it is within the spirit and principle of the utility model, any modification for being made, equivalent
Replace, improve etc., it should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of lamp bar, which is characterized in that including luminescence unit and column structure；The height of the column structure is more than the hair
The height of light unit, and between column structure setting luminescence unit described at least two.
2. lamp bar according to claim 1, which is characterized in that be both provided with the column between every group of adjacent light-emitting units
Structure.
3. lamp bar according to claim 1, which is characterized in that the column structure is on separate lamp bar direction in gradual
The tower structure of diminution trend.
4. lamp bar according to claim 3, which is characterized in that the tower structure includes multiple frustums stacked mutually,
The floor space of the frustum is more than its top area, and the tower structure is made of clear material.
5. lamp bar according to claim 3, which is characterized in that the tower structure includes multiple frustums stacked mutually,
The top area of the frustum is more than its floor space, and the tower structure outer surface is provided with reflectance coating.
6. lamp bar according to claim 1, which is characterized in that the luminescence unit is LED, and the LED encapsulates for convex glue
Or CSP encapsulation.
7. a kind of backlight module, which is characterized in that including lamp bar as claimed in any one of claims 1 to 6.
8. backlight module according to claim 7, which is characterized in that further include glue frame, light guide plate and backboard；The lamp bar
It is fixed on the backboard；
The glue frame includes stupefied muscle, and the stupefied muscle is perpendicular to the light guide plate surface and is parallel to the lamp bar, the stupefied muscle and
Rubber parts is provided between light guide plate.
9. backlight module according to claim 7, which is characterized in that further include lower diffusion sheet, printed on the lower diffusion sheet
Brushed with black surround.
10. a kind of display device, which is characterized in that including such as claim 7-9 any one of them backlight module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820003697.1U CN207635157U (en) | 2018-01-02 | 2018-01-02 | Lamp bar, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820003697.1U CN207635157U (en) | 2018-01-02 | 2018-01-02 | Lamp bar, backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207635157U true CN207635157U (en) | 2018-07-20 |
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ID=62851430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820003697.1U Active CN207635157U (en) | 2018-01-02 | 2018-01-02 | Lamp bar, backlight module and display device |
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| Country | Link |
|---|---|
| CN (1) | CN207635157U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021017197A1 (en) * | 2019-07-30 | 2021-02-04 | 武汉华星光电技术有限公司 | Backlight module and display device |
| WO2022082637A1 (en) * | 2020-10-22 | 2022-04-28 | 京东方科技集团股份有限公司 | Backlight substrate and manufacturing method therefor, backlight source, and display device |
-
2018
- 2018-01-02 CN CN201820003697.1U patent/CN207635157U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021017197A1 (en) * | 2019-07-30 | 2021-02-04 | 武汉华星光电技术有限公司 | Backlight module and display device |
| WO2022082637A1 (en) * | 2020-10-22 | 2022-04-28 | 京东方科技集团股份有限公司 | Backlight substrate and manufacturing method therefor, backlight source, and display device |
| CN114868075A (en) * | 2020-10-22 | 2022-08-05 | 京东方科技集团股份有限公司 | Backlight substrate and manufacturing method thereof, backlight source and display device |
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