CN109725464B - Straight-lower side-in combined liquid crystal module backlight display device - Google Patents
Straight-lower side-in combined liquid crystal module backlight display device Download PDFInfo
- Publication number
- CN109725464B CN109725464B CN201910198736.7A CN201910198736A CN109725464B CN 109725464 B CN109725464 B CN 109725464B CN 201910198736 A CN201910198736 A CN 201910198736A CN 109725464 B CN109725464 B CN 109725464B
- Authority
- CN
- China
- Prior art keywords
- display device
- backlight
- liquid crystal
- module
- direct
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a liquid crystal module backlight display device with a direct-lower-side-in combination, relates to the field of liquid crystal display, and solves the technical problem of providing a liquid crystal module backlight display device which can improve the rear-side appearance of the liquid crystal display device and well control the cost. The technical scheme adopted by the invention is as follows: the backlight display device comprises a display panel, a backlight module and a circuit assembly, wherein the upper part of the backlight module is a low-cost direct type backlight, the lower part of the backlight module is a side-in type backlight with small space requirement, the backlight module is in a shape that the upper part is thick and the lower part is thin, and the circuit assembly is placed on the thin part to beautify the appearance of the rear side of the liquid crystal display device. Because only the lower part of the backlight module is provided with the light guide plate with high cost, compared with the existing full-side-in type LED backlight, the cost of the light guide plate is saved, and the overall cost is better. The liquid crystal module backlight display device combined with the lower side of the straight body can be hung tightly on a wall, so that gaps are prevented from appearing when the wall is hung, and the wall hanging effect is improved.
Description
Technical Field
The invention relates to the field of liquid crystal display, in particular to a liquid crystal display device combining a direct type LED backlight scheme and a side type LED backlight scheme.
Background
The liquid crystal television mainly comprises a liquid crystal display panel, a backlight module, a circuit assembly and a structural rear cover plate. Since the lcd panel does not emit light, the backlight module is one of the key components of the lcd tv because the backlight module needs to provide a light source to normally display images.
The backlight module is divided into a direct type LED backlight type and a side type LED backlight type. When the backlight scheme of the liquid crystal display television is designed, in order to pursue the thinning of the television, a side-entering LED backlight with high cost is selected; in order to reduce the cost, a direct-type LED backlight is adopted, and one of the two types of backlight is selected.
No matter which type of backlight is selected, the thickness of the whole backlight cavity is certain. The bottom of the back of the traditional liquid crystal television is provided with circuit control components such as a power supply, a machine core and the like, so that the whole liquid crystal television is in a thin upper part and thick lower part, the integrity is poor, the problem of large upper part gap is caused particularly when the liquid crystal television is hung on a wall, the appearance effect is poor, and the attractiveness of the television is influenced. In recent years, the thickness of a novel ultrathin wall-mounted television can be well controlled due to the use of a lateral-entry-type ELED backlight scheme and a complex structural arrangement, but the overall cost is very high.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a liquid crystal module backlight display device which can improve the rear side appearance of the liquid crystal display device and can well control the cost.
The technical scheme adopted by the invention for solving the technical problems is as follows: the liquid crystal module backlight display device comprises a display panel, a backlight module and a circuit assembly, wherein the upper part of the backlight module is a direct type backlight, the lower part of the backlight module is a side type backlight, the backlight module comprises an optical film, a direct type LED lamp bar structure and a side type LED lamp bar structure, the back surface of the display panel is the optical film, the upper part of the back surface of the optical film is provided with a diffusion plate and the direct type LED lamp bar structure matched with the diffusion plate, and the back side of the direct type LED lamp bar structure is a module structure back plate; the lower part of the back of the optical film is provided with a light guide plate, the upper side of the light guide plate is spliced with a diffusion plate, and the left side, the right side or the lower side of the light guide plate is provided with an adaptive side-in type LED lamp bar structure; the module structure backplate surrounds straight following formula LED lamp strip structure and covers the back of light guide plate, and the back of the module structure backplate that the light guide plate corresponds the position sets up circuit assembly, and circuit assembly's rear side sets up the structure back shroud.
Specifically, straight following formula LED lamp strip structure includes straight following formula lamp strip PCB, straight following formula LED lamp pearl and lens, and straight following formula lamp strip PCB is at least one and be fixed in module structure backplate front side, sets up one row of straight following formula LED lamp pearl on the straight following formula lamp strip PCB, and each straight following formula LED lamp pearl sets up lens and orientation diffuser plate respectively.
Specifically, formula LED lamp strip structure is gone into to side includes a formula lamp strip PCB that goes into to side, and the interval sets up many formula LED lamp pearls of going into to side on the formula lamp strip PCB that goes into, and formula LED lamp pearl of going into to side is located the downside of light guide plate.
Further, the method comprises the following steps: and the back surface of the light guide plate and the back surface of the diffusion plate are both printed with colored printing ink.
Further, the method comprises the following steps: the type of the printing ink is ultraviolet light curing UV printing ink, the back of the light guide plate is printed with blue printing ink, and the back of the diffusion plate is printed with red printing ink.
Further, the method comprises the following steps: the shape of each single-point printing ink of light guide plate and diffuser plate is circular, oval or triangle-shaped, and each single-point printing ink evenly distributed is in the back of light guide plate and diffuser plate, and the size of single-point printing ink is 0.2 ~ 2mm, and the interval of single-point printing ink is 2 ~ 10 mm.
Further, the method comprises the following steps: the front-view projection area of the side-entry backlight accounts for 20-70% of the total front-view projection area.
Further, the method comprises the following steps: the thickness of the cavity of the optical cavity of the backlight module is large at the upper part and small at the lower part, and the upper part of the structural back plate of the module is flush with the structural back cover plate.
Further, the method comprises the following steps: and the upper part of the module structure back plate is provided with an upper wall hanging hole.
Further, the method comprises the following steps: the overall thickness of the liquid crystal module backlight display device which is vertically combined with the lower side is 20-35 mm.
The invention has the beneficial effects that: the direct-bottom side-in-bonding LCD backlight display device has improved rear integrity at lower cost. The upper part of the backlight module is a low-cost direct type backlight, the lower part of the backlight module is a side-in type backlight with small space requirement, the backlight module is in a shape that the upper part is thick and the lower part is thin, and the thin part is provided with a circuit assembly to beautify the rear appearance of the liquid crystal display device. Because only the lower part of the backlight module is provided with the light guide plate with high cost, compared with the existing full-side-in type LED backlight, the cost of the light guide plate is saved, and the overall cost is better.
The direct type backlight and the side type backlight are different in color and have color difference when being combined together, and the color difference can be improved by printing colored ink on the back surfaces of the light guide plate and the diffusion plate, so that the effect of uniform display is achieved. The upper portion of module structure backplate flushes with the structure back shroud, and the wall is hung to whole hugging closely of LCD, appears the gap when avoiding hanging the wall, improves and hangs the wall effect.
Drawings
FIG. 1 is a schematic view of the back side of a LCD module backlight display device with vertical side-in combination according to the present invention.
FIG. 2 is a longitudinal sectional view of the LCD backlight device with the lower side of the LCD module of FIG. 1.
Fig. 3 is an enlarged view of the area a in fig. 2.
Fig. 4 is an enlarged view of the region B in fig. 2.
Fig. 5 is a schematic partial cross-sectional view of the direct type LED light bar structure shown in fig. 1.
Fig. 6 is a schematic partial cross-sectional view of the side-in type LED light bar structure in fig. 1.
Parts, positions and numbers in the drawings: display panel 1, optical film 2, straight following formula LED lamp strip structure 3, straight following formula lamp strip PCB3-1, straight following formula LED lamp pearl 3-2, lens 3-3, side income formula LED lamp strip structure 4, side income formula lamp strip PCB4-1, side income formula LED lamp pearl 4-2, diffuser plate 5, module structure backplate 6, light guide plate 7, circuit module 8, structure back shroud 9.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 to 4, the liquid crystal module backlight display device with direct-bottom side-in combination of the invention includes a display panel 1, a backlight module and a circuit assembly 8, wherein the backlight module includes an optical film 2, a direct-type LED light bar structure 3 and a side-in LED light bar structure 4, the back of the display panel 1 is the optical film 2, the upper portion of the back of the optical film 2 is provided with a diffusion plate 5 and the direct-type LED light bar structure 3 matched with the diffusion plate 5, the back of the direct-type LED light bar structure 3 is a module structure back plate 6, that is, the upper portion of the backlight module is a direct-type backlight. As shown in fig. 4 and 5, the direct type LED light bar structure 3 includes at least one, for example two, direct type light bars PCB3-1, direct type LED light beads 3-2, and lenses 3-3, and direct type light bars PCB 3-1. The direct type light bar PCB3-1 is fixed to the inner side of the modular structural back plate 6, i.e. to the front side of the modular structural back plate 6. Direct type lamp strip PCB3-1 is gone up and is set up one row of straight following formula LED lamp pearl 3-2, and straight following formula LED lamp pearl 3-2 interval arrangement just is located same straight line, and each straight following formula LED lamp pearl 3-2 sets up lens 3-3 respectively, and lens 3-3 is towards diffuser plate 5. The direct type LED lamp beads 3-2 generate point-shaped light sources, light rays are scattered through the refraction and reflection effects of the lenses 3-3, and then the light rays are homogenized through the diffusion plate 5 and the optical film 2 to form a surface light source with uniform brightness.
2 back lower parts of optical film piece set up light guide plate 7, and the upside and the 5 concatenations of diffuser plate of light guide plate 7, and the left side of light guide plate 7, right side or downside set up the side income formula LED lamp strip structure 4 of adaptation, and backlight unit's lower part is that the side is gone into in a poor light promptly. The side-in type LED light bar structure 4 is preferably arranged at the lower side of the light guide plate 7, and the side-in type backlight light-in mode is that light enters from the long edge of the bottom. For example, as shown in fig. 2, 3 and 6, the side-in type LED light bar structure 4 includes a side-in type light bar PCB4-1, a plurality of side-in type LED light beads 4-2 are arranged on the side-in type light bar PCB4-1 at intervals, and the side-in type LED light beads 4-2 face the lower side of the light guide plate 7. The side-entering LED lamp beads 4-2 generate point-shaped light sources after being electrified, the side-entering LED lamp beads 4-2 are continuously arranged and are in a straight line to form a line light source, the line light source forms a surface light source through the light guide plate 7, and then the surface light source with uniform brightness is formed through the homogenization of the optical film 2.
Direct type LED lamp strip structure 3 is installed in module structure backplate 6, and module structure backplate 6 surrounds direct type LED lamp strip structure 3 and covers the back of light guide plate 7, and backlight unit forms the light cavity thickness that is shaded that upper portion is thick, the lower part is thin.
The back of the module structure back plate 6 at the corresponding position of the light guide plate 7 is provided with a circuit component 8, and the rear side of the circuit component 8 is provided with a structure rear cover plate 9. The circuit components 8 are placed in the thickness difference space of the direct type backlight and the side type backlight, namely, the thin part of the lower part of the backlight module is used for arranging the circuit components 8, and the space is fully utilized, so that the upper part of the module structure back plate 6 is flush with the structure rear cover plate 9. Therefore, the module structure back plate 6 and the structure rear cover plate 9 form a flat back surface, and the large surface of the rear part of the wall is completely flat and then is tightly attached and fixed with the wall, and no obvious gap exists basically.
The upper portion of module structure backplate 6 still sets up the wall hanging hole, and the wall hanging hole is used for hanging display device on the wall, perhaps installs the wall stores pylon. The overall thickness of the liquid crystal module backlight display device which is directly combined with the lower side is 20-35 mm. The ratio of the front-view projection area of the side-entry backlight to the total front-view projection area is 20-70%.
For high-efficiency production, the direct type lamp beads 3-2 and the side type lamp beads 4-2 use fluorescent powder with the same proportion, white light generated by the lamp beads is different in color after being reflected and refracted by the direct type backlight cavity and the side type backlight cavity, and color difference exists when the white light is combined together. The color difference can be improved by printing color inks of opposite color systems on the back surfaces of the light guide plate 7 and the diffusion plate 5, and a uniform display effect can be achieved. The type of ink is UV curable ink, blue ink is printed on the back of the light guide plate 7, and red ink is printed on the back of the diffuser plate 5. The direct-lit backlight is blue, and is nearly white after being combined with the red ink on the back surface of the diffusion plate 5. The side-in type backlight is red, and the back of the light guide plate 7 is printed with blue ink to be close to white after being synthesized. The shape of each single-point printing ink of light guide plate 7 and diffuser plate 5 is circular, oval or triangle-shaped, and each single-point printing ink evenly distributed is in the back of light guide plate 7 and diffuser plate 5, and the size of single-point printing ink is 0.2 ~ 2.0mm, and the interval of single-point printing ink is 2 ~ 10 mm.
Claims (9)
1. The liquid crystal module backlight display device that straight downside income combines includes display panel (1), backlight unit and circuit module (8), its characterized in that: the backlight module comprises an optical film (2), a direct type LED light bar structure (3) and an edge type LED light bar structure (4), wherein the back of the display panel (1) is the optical film (2), the upper part of the back of the optical film (2) is provided with a diffusion plate (5) and the direct type LED light bar structure (3) matched with the diffusion plate (5), and the back side of the direct type LED light bar structure (3) is a module structure back plate (6); the lower part of the back of the optical film (2) is provided with a light guide plate (7), the upper side of the light guide plate (7) is spliced with a diffusion plate (5), the back of the light guide plate (7) is printed with blue ink, the back of the diffusion plate (5) is printed with red ink, and the left side, the right side or the lower side of the light guide plate (7) is provided with an adaptive side-in LED lamp bar structure (4); the module structure backplate (6) surrounds the straight following formula LED lamp strip structure (3) and covers the back of light guide plate (7), and the back that the module structure backplate (6) of light guide plate (7) corresponding position set up circuit component (8), and the rear side of circuit component (8) sets up structure back shroud (9).
2. The direct-bottom-in-combination liquid crystal module backlight display device as claimed in claim 1, wherein: direct type LED lamp strip structure (3) are including straight following formula lamp strip PCB (3-1), straight following formula LED lamp pearl (3-2) and lens (3-3), and straight following formula lamp strip PCB (3-1) is at least one and be fixed in module structure backplate (6) front side, sets up one row of straight following formula LED lamp pearl (3-2) on straight following formula lamp strip PCB (3-1), and each straight following formula LED lamp pearl (3-2) set up lens (3-3) respectively and towards diffuser plate (5).
3. The direct-bottom-in-combination liquid crystal module backlight display device as claimed in claim 1, wherein: the lateral-in type LED lamp strip structure (4) comprises a lateral-in type lamp strip PCB (4-1), a plurality of lateral-in type LED lamp beads (4-2) are arranged on the lateral-in type lamp strip PCB (4-1) at intervals, and the lateral-in type LED lamp beads (4-2) are located on the lower side of the light guide plate (7).
4. The direct-bottom side-in bonding LCD module backlight display device as claimed in claim 1, 2 or 3, wherein: the type of the ink is ultraviolet light curing UV ink.
5. The direct-bottom side-in combination liquid crystal module backlight display device of claim 4, wherein: the shape of each single-point printing ink of light guide plate (7) and diffuser plate (5) is circular, oval or triangle-shaped, and each single-point printing ink evenly distributed is in the back of light guide plate (7) and diffuser plate (5), and the size of single-point printing ink is 0.2 ~ 2mm, and the interval of single-point printing ink is 2 ~ 10 mm.
6. The direct-bottom side-in bonding LCD module backlight display device as claimed in claim 1, 2 or 3, wherein: the front-view projection area of the side-entry backlight accounts for 20-70% of the total front-view projection area.
7. The direct-bottom side-in bonding LCD module backlight display device as claimed in claim 1, 2 or 3, wherein: the thickness of the cavity of the optical cavity of the backlight module is large at the upper part and small at the lower part, and the upper part of the module structure back plate (6) is flush with the structure rear cover plate (9).
8. The direct-bottom-in-combination liquid crystal module backlight display device as claimed in claim 7, wherein: and the upper part of the module structure back plate (6) is provided with an upper wall hanging hole.
9. The direct-bottom side-in combination liquid crystal module backlight display device of claim 8, wherein: the overall thickness of the liquid crystal module backlight display device which is vertically combined with the lower side is 20-35 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910198736.7A CN109725464B (en) | 2019-03-15 | 2019-03-15 | Straight-lower side-in combined liquid crystal module backlight display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910198736.7A CN109725464B (en) | 2019-03-15 | 2019-03-15 | Straight-lower side-in combined liquid crystal module backlight display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109725464A CN109725464A (en) | 2019-05-07 |
| CN109725464B true CN109725464B (en) | 2020-12-29 |
Family
ID=66302555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910198736.7A Active CN109725464B (en) | 2019-03-15 | 2019-03-15 | Straight-lower side-in combined liquid crystal module backlight display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109725464B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110456569B (en) * | 2019-08-08 | 2024-05-10 | 深圳市兆驰股份有限公司 | Front frame, direct type backlight module and liquid crystal display device |
| CN114141206B (en) * | 2021-12-10 | 2023-05-09 | Tcl华星光电技术有限公司 | Backlight correction method, related device and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202253209U (en) * | 2011-10-14 | 2012-05-30 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display with same |
| CN203131608U (en) * | 2013-03-08 | 2013-08-14 | 深圳Tcl新技术有限公司 | Backlight module |
| CN103728688A (en) * | 2013-12-27 | 2014-04-16 | 合肥京东方光电科技有限公司 | Preparation method of light guide plate, light guide plate, backlight module and display device |
| CN104864311A (en) * | 2015-05-06 | 2015-08-26 | 广州创维平面显示科技有限公司 | Liquid crystal display device and downright and side entry hybrid backlight module |
| CN206557427U (en) * | 2017-03-17 | 2017-10-13 | 深圳创维－Rgb电子有限公司 | Backlight module and liquid crystal display device |
| CN108802889A (en) * | 2018-04-04 | 2018-11-13 | 惠州市华星光电技术有限公司 | Light guide plate, backlight module and display |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101339329A (en) * | 2008-08-11 | 2009-01-07 | 上海广电光电子有限公司 | Backlight module group |
| 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 |
| CN102136253A (en) * | 2011-03-28 | 2011-07-27 | 彩虹集团公司 | Hybrid LED (light-emitting diode) backlight source drive method |
| CN203025371U (en) * | 2011-05-19 | 2013-06-26 | 深圳市华星光电技术有限公司 | Light guide plate and backlight display module |
| CN103592705B (en) * | 2013-11-06 | 2014-09-24 | 苏州东显光电科技有限公司 | Diffusion plate, manufacturing method thereof and backlight module |
| JP6592375B2 (en) * | 2016-02-24 | 2019-10-16 | 株式会社ジャパンディスプレイ | Display device |
-
2019
- 2019-03-15 CN CN201910198736.7A patent/CN109725464B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202253209U (en) * | 2011-10-14 | 2012-05-30 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display with same |
| CN203131608U (en) * | 2013-03-08 | 2013-08-14 | 深圳Tcl新技术有限公司 | Backlight module |
| CN103728688A (en) * | 2013-12-27 | 2014-04-16 | 合肥京东方光电科技有限公司 | Preparation method of light guide plate, light guide plate, backlight module and display device |
| CN104864311A (en) * | 2015-05-06 | 2015-08-26 | 广州创维平面显示科技有限公司 | Liquid crystal display device and downright and side entry hybrid backlight module |
| CN206557427U (en) * | 2017-03-17 | 2017-10-13 | 深圳创维－Rgb电子有限公司 | Backlight module and liquid crystal display device |
| CN108802889A (en) * | 2018-04-04 | 2018-11-13 | 惠州市华星光电技术有限公司 | Light guide plate, backlight module and display |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109725464A (en) | 2019-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105842919A (en) | Backlight unit, display module and display equipment | |
| CN101477274A (en) | Liquid crystal display | |
| CN102661535B (en) | Direct type backlight module | |
| CN210514884U (en) | Light emitting diode lamp strip, backlight module and display device | |
| CN110196514A (en) | A kind of backlight module and its display device | |
| CN109725464B (en) | Straight-lower side-in combined liquid crystal module backlight display device | |
| CN107991810A (en) | Backlight and liquid crystal display | |
| WO2016095334A1 (en) | Backlight module structure | |
| CN109507822A (en) | Backlight module and liquid crystal display device | |
| CN210294761U (en) | High-brightness module screen | |
| CN202266937U (en) | Edge-lighting light emitting diode (LED) backlight structure | |
| TW200532316A (en) | Backlight module of direct type point light source and liquid crystal display device using the same | |
| CN201787426U (en) | Direct lighting type LCD backlight module with integrated display casing | |
| CN210835519U (en) | Display screen backlight module | |
| CN205581472U (en) | Backlight unit , display module assembly and display device | |
| KR101878800B1 (en) | Liquid crystal display device | |
| CN106873240A (en) | Backlight assembly and liquid crystal display module | |
| CN111880337A (en) | Backlight assembly and liquid crystal display module | |
| KR20050121578A (en) | Backlight unit | |
| CN109358451B (en) | Backlight module and display device thereof | |
| CN107942581B (en) | Direct type backlight module structure | |
| KR20110073210A (en) | Backlight unit | |
| CN201788335U (en) | Direct-type liquid crystal module using high-power LED as light source | |
| CN205880445U (en) | Back light module and liquid crystal display device | |
| CN103982831A (en) | Backlight module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |