CN105546393A - Light bar capable of reducing shadow of cushion blocks, backlight module, displayer and television - Google Patents

Light bar capable of reducing shadow of cushion blocks, backlight module, displayer and television Download PDF

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Publication number
CN105546393A
CN105546393A CN201610002721.5A CN201610002721A CN105546393A CN 105546393 A CN105546393 A CN 105546393A CN 201610002721 A CN201610002721 A CN 201610002721A CN 105546393 A CN105546393 A CN 105546393A
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China
Prior art keywords
cushion block
led
shadow
spacing
adjacent
Prior art date
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Granted
Application number
CN201610002721.5A
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Chinese (zh)
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CN105546393B (en
Inventor
王中意
朋朝明
丁雨芬
王博
周辉
梁琴
王永博
沈思宽
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Shenzhen Skyworth RGB Electronics Co Ltd
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Shenzhen Skyworth RGB Electronics Co Ltd
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Priority to CN201610002721.5A priority Critical patent/CN105546393B/en
Publication of CN105546393A publication Critical patent/CN105546393A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The invention discloses a light bar capable of reducing shadow of cushion blocks, a backlight module, a displayer and a television. A plurality of cushion block units are arranged on the light bar, and each cushion block unit comprises a plurality of LED lamps and one cushion block arranged between the LED lamps and used for supporting a light guide plate. The distances of the position, on one side of each cushion block, of two adjacent LED lamps is gradually increased, and the distance of the position, on the other side of each cushion block, of two adjacent LED lamps is gradually decreased. According to the light bar, the distances between the LED lamps are arranged to be finely changed, and the problem of the bright dark and bright shadow caused by large distance changes between the LED lamps is solved. Meanwhile, lattice points of the light guide plated do not need to be repaired, a membrane does not need to be added for sheltering the shadow, and the production cost is saved.

Description

A kind of lamp bar, backlight module, display and TV reducing cushion block shadow
Technical field
The present invention relates to back light model setting technology field, in particular a kind of lamp bar, backlight module, display and TV reducing cushion block shadow.
Background technology
At present, the backlight product of side-light type, on lamp bar, paster or stickup cushion block support light guide plate, effectively can also control light guide plate and LED surface gap, make backlight product reach high brightness, superior price-performance.The size of cushion block is generally 3.0mm*2.0mm, and between equally spaced two LED lamp, places cushion block in prior art, and light guide plate has shadow with cushion block correspondence position.As shown in Figure 1, place cushion block 20 between LED 10, then cushion block 20 correspondence position on light guide plate 30 has shadow.
If use printing, radium-shine light guide plate mesh point repairing technique, usually need repeatedly to revise.Please refer to Fig. 2, the site diameter of site 31 corresponding with cushion block 20 on light guide plate 30 after amendment becomes greatly, and the site modification process of this light guide plate is complicated, has a strong impact on the construction cycle.If use hot-pressing light guide plate, revise a roller half tone cost higher, cause development cost to increase.As shown in Figure 3, if cover the shadow of cushion block 20 by increasing diaphragm 40 in backlight module, product cost raises.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of the lamp bar, backlight module, display and the TV that reduce cushion block shadow, be intended to solve in prior art and between equally spaced two LED lamp, place cushion block in backlight module, light guide plate there is shadow with cushion block correspondence position, and the defect that this shadow is not easily eliminated.
Technical scheme of the present invention is as follows:
Reduce a lamp bar for cushion block shadow, wherein, comprise multiple cushion block unit; Each cushion block unit comprises multiple LED, and one be arranged between LED, for supporting the cushion block of light guide plate; Spacing between adjacent two LED of described cushion block side increases gradually, and the spacing between adjacent two LED of described cushion block opposite side reduces gradually.
The described lamp bar reducing cushion block shadow, wherein, the spacing between adjacent two LED on the left of described cushion block increases gradually, and the spacing between adjacent two LED on the right side of described cushion block reduces gradually.
The described lamp bar reducing cushion block shadow, wherein, the spacing between adjacent two LED on the left of described cushion block is equal difference incremental variations by direction from left to right.
The described lamp bar reducing cushion block shadow, wherein, the spacing between adjacent two LED on the left of described cushion block is the tolerance of equal difference incremental variations is 0.1mm.
The described lamp bar reducing cushion block shadow, wherein, the spacing between adjacent two LED on the right side of described cushion block is that equal difference is successively decreased change by direction from left to right.
The described lamp bar reducing cushion block shadow, wherein, the spacing between adjacent two LED on the right side of described cushion block is the tolerance of equal difference incremental variations is 0.1mm.
A kind of backlight module, wherein, comprises the lamp bar of described reduced cushion block shadow.
A kind of display, wherein, comprises the lamp bar of described reduced cushion block shadow.
A kind of TV, wherein, comprises the lamp bar of described reduced cushion block shadow.
Beneficial effect: the present invention by arranging multiple cushion block unit on lamp bar; Each cushion block unit comprises multiple LED, and one be arranged between LED, for supporting the cushion block of light guide plate; Spacing between adjacent two LED of described cushion block side increases gradually, and the spacing between adjacent two LED of described cushion block opposite side reduces gradually.The present invention is by being set to slight change by the spacing between LED, and the spacing avoided between LED changes greatly and causes bright secretly clearly demarcated shadow problem.Simultaneously without the need to modifying to light guide plate mesh point, also without the need to increasing diaphragm to cover shadow, save production cost.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the cushion block generation shadow in prior art on backlight module lamp bar;
Fig. 2 is the partial schematic diagram after the light guide plate mesh point revising backlight module in prior art;
Fig. 3 is the partial schematic diagram increasing diaphragm in prior art at backlight module;
Fig. 4 a is the schematic diagram reducing the lamp bar of cushion block shadow of the present invention;
Fig. 4 b is the schematic diagram of cushion block unit in Fig. 4 a;
Fig. 5 is the sectional view of backlight module of the present invention.
Detailed description of the invention
The invention provides a kind of the lamp bar, backlight module, display and the TV that reduce cushion block shadow, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to Fig. 4 a and Fig. 4 b, wherein Fig. 4 a is the schematic diagram reducing the lamp bar of cushion block shadow of the present invention, and Fig. 4 b is the schematic diagram of cushion block unit in Fig. 4 a.As shown in figures 4 a and 4b, the described lamp bar 1000 reducing cushion block shadow, comprises multiple cushion block unit 100; Each cushion block unit 100 comprises multiple LED 110, and one be arranged between LED 110, for supporting the cushion block 120 of light guide plate; Spacing between adjacent two LED of described cushion block 120 side increases gradually, and the spacing between adjacent two LED of described cushion block 120 opposite side reduces gradually.
In figs. 4 a and 4b, be only described with the lamp bar comprising a cushion block unit 100, and the spacing between adjacent two LED is marked (unit of the distance values between adjacent two LED is mm).Mark the spacing between adjacent two LED in Fig. 4 a and Fig. 4 b and only illustrate for example, and be not used in and limit lamp bar and need produce by the standard of Fig. 4 a and Fig. 4 b when actual production, the spacing also namely between adjacent two LED can set arbitrarily.
As shown in figures 4 a and 4b, when the spacing between adjacent two LED of cushion block 120 side described in each cushion block unit 100 is increased gradually, spacing between adjacent two LED of described cushion block 120 opposite side reduces gradually, the light that then LED 110 can be made to enter light guide plate 130 slowly changes, and avoids larger bright dark change and causes the bad subjective vision effect problem of shadow.
Preferably, as shown in figures 4 a and 4b, the spacing between adjacent two LED on the left of described cushion block 120 increases gradually, and the spacing between adjacent two LED on the right side of described cushion block 120 reduces gradually.More specifically, the spacing between adjacent two LED on the left of described cushion block 120 is equal difference incremental variations by direction from left to right, and the tolerance that the spacing between adjacent two LED on the left of described cushion block 120 is equal difference incremental variations is 0.1mm.Spacing between adjacent two LED on the right side of described cushion block 120 is that equal difference is successively decreased change by direction from left to right, and the tolerance that the spacing between adjacent two LED on the right side of described cushion block 120 is equal difference incremental variations is 0.1mm.
Technical scheme for a more clear understanding of the present invention, illustrates below by a specific embodiment.In the prior art by the backlight module of 55E6200 model, being provided with cushion block and between above-mentioned two adjacent LED, spacing is 9.7mm between two adjacent LED, is equally spaced 8.28mm between other two adjacent LED.By above-mentioned setting, light guide plate there is shadow with cushion block correspondence position.When reducing the lamp bar of cushion block shadow by employing is of the present invention, the light making LED enter light guide plate slowly changes, and avoids larger bright dark change and causes the bad subjective vision effect problem of shadow, specifically arrange as shown in table 1.
Table 1
Between the LED being numbered D9 and the LED being numbered D10, be provided with cushion block 1, between the LED being numbered D28 and the LED being numbered D29, be provided with cushion block 2, between the LED being numbered D46 and the LED being numbered D47, be provided with cushion block 3.During concrete enforcement, the LED being numbered D1-D66 from left to right sets gradually on lamp bar.Visible, the spacing between the LED being numbered D4-D9 on the left of cushion block 1 is equal difference incremental variations, and the spacing between the LED being numbered D10-D18 on the right side of cushion block 1 is that equal difference is successively decreased change; Spacing between the LED being numbered D19-D28 on the left of cushion block 2 is equal difference incremental variations, and the spacing between the LED being numbered D29-D37 on the right side of cushion block 2 is that equal difference is successively decreased change; Spacing between the LED being numbered D38-D46 on the left of cushion block 3 is equal difference incremental variations, spacing between the LED being numbered D47-D56 on the right side of cushion block 3 is that equal difference is successively decreased change. by above-mentioned set-up mode, effectively solve the bad problem of ground side lamp bar.
Based on the above-mentioned lamp bar reducing cushion block shadow, present invention also offers a kind of backlight module.As shown in Figure 5, described backlight module comprises backboard 2000, and is arranged on the lamp bar 1000 of the reduced cushion block shadow on described backboard 2000.
Based on the above-mentioned lamp bar reducing cushion block shadow, present invention also offers a kind of display, comprise the lamp bar of described reduced cushion block shadow.
Based on the above-mentioned lamp bar reducing cushion block shadow, present invention also offers a kind of TV, comprise the lamp bar of described reduced cushion block shadow.
In sum, the present invention by arranging multiple cushion block unit on lamp bar; Each cushion block unit comprises multiple LED, and one be arranged between LED, for supporting the cushion block of light guide plate; Spacing between adjacent two LED of described cushion block side increases gradually, and the spacing between adjacent two LED of described cushion block opposite side reduces gradually.The present invention is by being set to slight change by the spacing between LED, and the spacing avoided between LED changes greatly and causes bright secretly clearly demarcated shadow problem.Simultaneously without the need to modifying to light guide plate mesh point, also without the need to increasing diaphragm to cover shadow, save production cost.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and conversion all should belong to the protection domain that the present invention locks claim.

Claims (9)

1. can reduce a lamp bar for cushion block shadow, it is characterized in that, comprise multiple cushion block unit; Each cushion block unit comprises multiple LED, and one be arranged between LED, for supporting the cushion block of light guide plate; Spacing between adjacent two LED of described cushion block side increases gradually, and the spacing between adjacent two LED of described cushion block opposite side reduces gradually.
2. can reduce the lamp bar of cushion block shadow according to claim 1, it is characterized in that, the spacing between adjacent two LED on the left of described cushion block increases gradually, and the spacing between adjacent two LED on the right side of described cushion block reduces gradually.
3. can reduce the lamp bar of cushion block shadow according to claim 2, it is characterized in that, the spacing between adjacent two LED on the left of described cushion block is equal difference incremental variations by direction from left to right.
4. can reduce the lamp bar of cushion block shadow according to claim 3, it is characterized in that, the spacing between adjacent two LED on the left of described cushion block is the tolerance of equal difference incremental variations is 0.1mm.
5. can reduce the lamp bar of cushion block shadow according to claim 3, it is characterized in that, the spacing between adjacent two LED on the right side of described cushion block is that equal difference is successively decreased change by direction from left to right.
6. can reduce the lamp bar of cushion block shadow according to claim 5, it is characterized in that, the spacing between adjacent two LED on the right side of described cushion block is the tolerance of equal difference incremental variations is 0.1mm.
7. a backlight module, is characterized in that, comprises the lamp bar of the reduced cushion block shadow as described in claim 1-6 any one.
8. a display, is characterized in that, comprises the lamp bar of the reduced cushion block shadow as described in claim 1-6 any one.
9. a TV, is characterized in that, comprises the lamp bar of the reduced cushion block shadow as described in claim 1-6 any one.
CN201610002721.5A 2016-01-06 2016-01-06 A kind of lamp bar for reducing cushion block shadow, backlight module, display and TV Active CN105546393B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110032000A (en) * 2019-03-20 2019-07-19 青岛海信电器股份有限公司 A kind of optical element, backlight module and display device

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CN101737670A (en) * 2009-12-11 2010-06-16 安徽华东光电技术研究所 Direct-side lighting combined hybrid backlight
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CN201779512U (en) * 2010-08-25 2011-03-30 上海广中电子电器配件有限公司 Lighting fixture
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CN102748660A (en) * 2012-06-14 2012-10-24 深圳市华星光电技术有限公司 Three-dimensional (3D) display backlight module and light-emitting diode (LED) lamp strip thereof
CN102927499A (en) * 2012-10-24 2013-02-13 深圳市华星光电技术有限公司 Liquid crystal display device and backlight module thereof
US20150078033A1 (en) * 2013-09-16 2015-03-19 Samsung Display Co. Ltd. Backlight assembly and display including the same
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CN102042533A (en) * 2009-10-22 2011-05-04 友达光电股份有限公司 Backlight module
CN101737670A (en) * 2009-12-11 2010-06-16 安徽华东光电技术研究所 Direct-side lighting combined hybrid backlight
CN102713411A (en) * 2010-01-22 2012-10-03 夏普株式会社 Lighting device, display device, and television receiver
CN101936487A (en) * 2010-08-20 2011-01-05 深圳市华星光电技术有限公司 Backlight module
CN201779512U (en) * 2010-08-25 2011-03-30 上海广中电子电器配件有限公司 Lighting fixture
CN101975356A (en) * 2010-09-21 2011-02-16 青岛海信电器股份有限公司 Side light type LED backlight source and display device
CN202216102U (en) * 2011-08-26 2012-05-09 广东长虹电子有限公司 Backlight module
CN102748660A (en) * 2012-06-14 2012-10-24 深圳市华星光电技术有限公司 Three-dimensional (3D) display backlight module and light-emitting diode (LED) lamp strip thereof
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110032000A (en) * 2019-03-20 2019-07-19 青岛海信电器股份有限公司 A kind of optical element, backlight module and display device
CN110032000B (en) * 2019-03-20 2022-08-02 海信视像科技股份有限公司 Optical element, backlight module and display device

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