CN201138409Y - Back light module unit and liquid crystal display - Google Patents
Back light module unit and liquid crystal display Download PDFInfo
- Publication number
- CN201138409Y CN201138409Y CNU2007201717407U CN200720171740U CN201138409Y CN 201138409 Y CN201138409 Y CN 201138409Y CN U2007201717407 U CNU2007201717407 U CN U2007201717407U CN 200720171740 U CN200720171740 U CN 200720171740U CN 201138409 Y CN201138409 Y CN 201138409Y
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- circuit board
- flexible circuit
- area
- reflector plate
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a backlight module and a liquid crystal display device with the backlight module. The liquid crystal display device includes a liquid crystal panel and a the backlight module adjacent to the liquid crystal panel. The backlight module includes a light guide plate, a reflective plate, a flexible circuit board and a tape. The light guide plate includes a bottom side. The reflective plate and the flexible circuit board are adjacent to the bottom side and arranged at intervals. The tape is bonded to the reflective plate and the flexible circuit board and includes at least a shading area; the two boundaries of the reflective plate which are adjacent to the flexible circuit board are arranged in the same shading area. The backlight module and the liquid crystal display device of the utility model have quite high brightness.
Description
Technical field
The utility model relates to a kind of module backlight and adopts the liquid crystal indicator of this module backlight.
Background technology
Because characteristics such as liquid crystal indicator have gently, thin, little, (Personal Digital Assistant is PDA) in the equipment such as grade to make it be fit to very much be applied to mobile phone and personal digital assistant.
Usually, liquid crystal indicator comprises the liquid crystal panel of a module backlight and adjacent this module backlight.Module backlight generally includes a glue frame, a light guide plate, a reflector plate and a flexible light-emitting diodes circuit board.Light guide plate is contained in this glue frame, and it generally includes the bottom surface of exiting surface and relative this exiting surface of an incidence surface, adjacent this incidence surface.This reflector plate and this flexible light-emitting diodes circuit board are fixed in the bottom surface of glue frame and adjacent light guide plate, the adjacent incidence surface of the light emitting diode on the flexible light-emitting diodes circuit board.For preventing that light from spilling from the bottom surface of light guide plate, make this reflector plate and this flexible circuit plate portion overlapped usually, so that this bottom surface of light guide plate is hidden fully, thereby guarantee that this module backlight has higher emitting brightness.
Yet the reflector plate of this module backlight and flexible circuit board are because part is overlapped, and it has increased the thickness of module backlight and liquid crystal indicator, can not satisfy the application that slimming is had relatively high expectations to liquid crystal indicator.
The utility model content
In order to solve the thicker problem of prior art module backlight, be necessary to provide a kind of thin module backlight.
In order to solve the thicker problem of prior art liquid crystal indicator, be necessary to provide a kind of thin liquid crystal indicator.
A kind of module backlight, it comprises a light guide plate, a reflector plate, a flexible circuit board and an adhesive tape.This light guide plate comprises a bottom surface.Adjacent this bottom surface with this flexible circuit board of this reflector plate and space are provided with.This adhesive tape bond this reflector plate and this flexible circuit board, it comprises at least one lightproof area, and this reflector plate two borders adjacent with this flexible circuit board lay respectively in the same lightproof area.
A kind of liquid crystal indicator, it comprises the module backlight of a liquid crystal panel and adjacent this liquid crystal panel.This module backlight comprises a light guide plate, a reflector plate, a flexible circuit board and an adhesive tape.This light guide plate comprises a bottom surface.Adjacent this bottom surface with this flexible circuit board of this reflector plate and space are provided with.This adhesive tape bond this reflector plate and this flexible circuit board, it comprises at least one lightproof area, and this reflector plate two borders adjacent with this flexible circuit board lay respectively in the same lightproof area.
A kind of liquid crystal indicator, it comprises a liquid crystal panel, a framework, at least one light source, a flexible circuit board, a reflector plate and a shading rubber belt.This liquid crystal panel comprises the back side of a display surface and relative this display surface.This framework defines a receiving space, and this light source and this liquid crystal panel are housed in this receiving space, and this light source provides light source for this display panel.This flexible circuit board and this reflector plate are fixed in this framework and non-overlapping copies.This reflector plate is connected by this shading rubber belt with this flexible circuit board and is in the lump that adjacent this back side of this receiving space is one side closed.
Compared with prior art, this module backlight and liquid crystal indicator are provided with this reflector plate and this flexible circuit board space, and the bottom surface of adjacent this light guide plate of difference, and the adjacent boundary of this reflector plate and this flexible circuit board lays respectively in the same lightproof area of an adhesive tape, therefore the lightproof area of this adhesive tape can prevent that light is from penetrating this module backlight between this flexible circuit board and this reflector plate, improve the emitting brightness and the light utilization efficiency of this module backlight, thereby this liquid crystal indicator brightness is higher.And, because this flexible circuit board and this reflector plate space are provided with, promptly this reflector plate and this flexible circuit board zero lap part can avoid the thickness of this module backlight and this liquid crystal indicator to increase, and therefore can satisfy the application that slimming is had relatively high expectations to liquid crystal indicator.
Description of drawings
Fig. 1 is the perspective exploded view of the utility model liquid crystal indicator first embodiment.
Fig. 2 is the schematic perspective view after the liquid crystal indicator assembling shown in Figure 1.
Embodiment
Seeing also Fig. 1, is the perspective exploded view of the utility model liquid crystal indicator first embodiment.This liquid crystal indicator 2 is small-sized demonstration modules, as demonstration modules that portable equipment adopted such as mobile phone or personal digital assistants.This liquid crystal indicator 2 comprises the liquid crystal panel 21 of a module 20 backlight and adjacent this module 20 backlight.This module 20 backlight comprises a reflector plate 22, a flexible circuit board 23, one first shading rubber belt 24, a glue frame 26, a light guide plate 27 and one second shading rubber belt 28.This reflector plate 22, this first shading rubber belt 24, this glue frame 26, this light guide plate 27, this second shading rubber belt 28 and this liquid crystal panel 21 are cascading from bottom to top.This second shading rubber belt 28 is two-sided endless rubber belts that are viscosity, and it is used for this liquid crystal panel 21 is fixed in this glue frame 26.
This light guide plate 27 is rectangular structure, and it comprises the bottom surface 274 of relative this exiting surface 272 with of exiting surface 272 of an incidence surface 270, vertical this incidence surface 270.The material of this light guide plate 27 be generally polycarbonate (Polycarbonate, PC) or polymethylmethacrylate (Polymethyl Methacrylate, PMMA).This liquid crystal panel 21 comprises the back side (not indicating) of display surface (not indicating) and relative this display surface of a display frame, the exiting surface 272 of adjacent this light guide plate 27 in this back side.
This glue frame 26 is structures of a hollow, and it comprises the back up pad 263 of four sidewalls 260, a plurality of storage tank 262 and an annular.This four sidewall 260 joins end to end and forms a pair of first receiving space (indicating) that should liquid crystal panel 21.This back up pad 263 is vertically extended to this first receiving space from the inside surface of this four sidewall 260 (indicating), and forms a pair of second receiving space 264 that should light guide plate 27.These a plurality of storage tank 262 adjacent these incidence surfaces 270, and be connected with this second receiving space 264.
This first shading rubber belt 24 is two-sided light tight adhesive tapes that are viscosity.The profile of this first shading rubber belt 24 is roughly to should back up pad 263, and it mainly is to be used for this reflector plate 22 and this flexible circuit board 23 are fixed in this glue frame 26.This first shading rubber belt 24 comprise a pair of should reflector plate 22 first area 240, a pair of should flexible circuit board 23 second area 241 and one the 3rd zone 243 between this first area 240 and this second area 241.This first area 240, this second area 241 and the 3rd zone 243 are integrative-structures.A pair of first opening 244 that should second receiving space 264 is defined in this first area 240.This second area 241 defines a plurality of respectively to second opening 242 that should storage tank 262, and this second opening 242 and this first opening 244 are not communicated with mutually.The 3rd zone 243 is rectangle lightproof areas.First separatrix 248, this second area 241 that this first area 240 and the 3rd zone are 243 is parallel to each other with second separatrix 247 in 243 in the 3rd zone, and overlaps with the border of this first opening 244 and the border of this second opening 242 respectively.The width in the 3rd zone 243 equals the vertical range of 247 of this first separatrix 248 and this second separatrix.
This flexible circuit board 23 comprise a soft insulation light tight substrate 230, be positioned at a plurality of leads (figure do not show) of these substrate 230 inside and be arranged on a plurality of light sources 232 on this substrate 230.These a plurality of light sources 232 are respectively white light emitting diodes or are respectively the red, green, blue light emitting diode, and it is respectively to should a plurality of second openings 242.These a plurality of light sources 232 are connected to an external power source control circuit (figure does not show) to control the switch of these a plurality of light sources 232 by these a plurality of leads.230 pairs of this substrates should second area 241, and it is lighttight material or forms at light transmissive material surface-coated light screening material.
Seeing also Fig. 2, is the schematic perspective view after liquid crystal indicator 2 assemblings shown in Figure 1.This reflector plate 22 and this flexible circuit board 23 are attached to the lower surface of this back up pad 263 by this first shading rubber belt 24.This reflector plate 22 covers this first area 240 fully, and its border is positioned at the 3rd zone 243.This flexible circuit board 23 covers this second area 241 fully, its border is positioned at the 3rd zone 243, and this reflector plate 22 and this flexible circuit board 23 be non-overlapping copies in the 3rd zone 243, thereby the width in the 3rd zone 243 is greater than the distance between this reflector plate 22 and this flexible circuit board 23.That is, this reflector plate 22 and this flexible circuit board 23 bond by the 3rd zone 243, and form the uncovered box bodys of a base seal in the lump jointly with this glue frame 26.This light guide plate 27 is carried on this reflector plate 22, and corresponding second receiving space 264 that is housed in this uncovered box body.These a plurality of light sources 232 correspondence respectively pass this a plurality of second openings 242, and the corresponding a plurality of storage tanks 262 that are housed in this uncovered box body.This liquid crystal panel 21 is fixed on this back up pad 263 by this second shading rubber belt 28, and corresponding first receiving space that is housed in this uncovered box body.
The light that this light source 232 sends enters this light guide plate 27 by this incidence surface 270, penetrates in this exiting surface 272 after the reflection of this bottom surface 274 and this reflector plate 22, and enters this liquid crystal panel 21.Wherein, the light that this reflector plate 22 of directive and this flexible circuit board are 23 blocks and can't penetrate from the bottom of this liquid crystal indicator 2 because of the 3rd zone 243 of this first shading rubber belt 24, and it can utilize after these shading rubber belt 24 reflections again.
The liquid crystal indicator 2 of the utility model liquid crystal indicator (figure does not show) second embodiment and first embodiment is roughly the same, its key distinction is: first shading rubber belt disconnects in the first area, thereby first shading rubber belt is divided into 2 two parts of separating mutually, its non-overlapping copies be attached at back up pad, reflector plate covers the slit of gap in whole first area and the first area.
Yet it is described that the utility model is not limited to above-mentioned embodiment, and for example this first area 240 and this second area 241 also can be adhesive tape; This first shading rubber belt 24 also can be arranged on the below of this reflector plate 22; Also can comply with the required blooming piece that is provided with between this liquid crystal panel 21 and this light guide plate 27, as diffusion sheet, blast sheet and polaroid etc.; This first shading rubber belt 24 also can disconnect in this second area.
Claims (10)
1. module backlight, it comprises a light guide plate, a reflector plate, a flexible circuit board and an adhesive tape, this light guide plate comprises a bottom surface, it is characterized in that: adjacent this bottom surface with this flexible circuit board of this reflector plate and space are provided with, this adhesive tape bond this reflector plate and this flexible circuit board, it comprises at least one lightproof area, and this reflector plate two borders adjacent with this flexible circuit board lay respectively in the same lightproof area.
2. module backlight as claimed in claim 1 is characterized in that: this adhesive tape comprises a first area, a second area and the 3rd zone between this first area and second area.
3. module backlight as claimed in claim 2 is characterized in that: this first area, this second area and the 3rd zone are one-piece constructions.
4. module backlight as claimed in claim 3 is characterized in that: the 3rd zone is a rectangle shading region.
5. module backlight as claimed in claim 4 is characterized in that: the 3rd zone is the same lightproof area that this reflector plate two borders adjacent with this flexible circuit board are laid respectively at.
6. module backlight as claimed in claim 1 is characterized in that: this adhesive tape also comprises a reflection horizon towards this light guide plate.
7. liquid crystal indicator, the liquid crystal panel that it comprises a module backlight and adjacent this module backlight is characterized in that: this module backlight is the described module backlight of any claim in the claim 1 to 6.
8. liquid crystal indicator, it comprises a liquid crystal panel, one framework, at least one light source, one flexible circuit board, one reflector plate and a shading rubber belt, this liquid crystal panel comprises the back side of a display surface and relative this display surface, this framework defines a receiving space, this light source and this liquid crystal panel are housed in this receiving space, this light source provides light source for this display panel, it is characterized in that: this flexible circuit board and this reflector plate are fixed in this framework and non-overlapping copies, and this reflector plate is connected by this shading rubber belt with this flexible circuit board and is in the lump that adjacent this back side of this receiving space is one side closed.
9. liquid crystal indicator as claimed in claim 8 is characterized in that: this shading rubber belt comprise a pair of should reflector plate the first area, a pair of should flexible circuit board second area and be positioned at this first area and this second area between the 3rd zone.
10. liquid crystal indicator as claimed in claim 9 is characterized in that: this reflector plate and this flexible circuit board are bonding by the 3rd zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201717407U CN201138409Y (en) | 2007-09-07 | 2007-09-07 | Back light module unit and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201717407U CN201138409Y (en) | 2007-09-07 | 2007-09-07 | Back light module unit and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201138409Y true CN201138409Y (en) | 2008-10-22 |
Family
ID=40039093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201717407U Expired - Lifetime CN201138409Y (en) | 2007-09-07 | 2007-09-07 | Back light module unit and liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201138409Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355991A (en) * | 2009-03-17 | 2012-02-15 | 积水化学工业株式会社 | Tape base material for assembling display device, and adhesive sheet for assembling display device and display module unit using same |
| CN102566091A (en) * | 2010-12-23 | 2012-07-11 | 东莞万士达液晶显示器有限公司 | Liquid crystal display device |
| CN107179619A (en) * | 2017-04-28 | 2017-09-19 | 厦门天马微电子有限公司 | A kind of display device and its assemble method |
-
2007
- 2007-09-07 CN CNU2007201717407U patent/CN201138409Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355991A (en) * | 2009-03-17 | 2012-02-15 | 积水化学工业株式会社 | Tape base material for assembling display device, and adhesive sheet for assembling display device and display module unit using same |
| CN102566091A (en) * | 2010-12-23 | 2012-07-11 | 东莞万士达液晶显示器有限公司 | Liquid crystal display device |
| CN107179619A (en) * | 2017-04-28 | 2017-09-19 | 厦门天马微电子有限公司 | A kind of display device and its assemble method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081022 |