CN1862333A - Liquid crystal display - Google Patents
Liquid crystal display Download PDFInfo
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- CN1862333A CN1862333A CN 200610087795 CN200610087795A CN1862333A CN 1862333 A CN1862333 A CN 1862333A CN 200610087795 CN200610087795 CN 200610087795 CN 200610087795 A CN200610087795 A CN 200610087795A CN 1862333 A CN1862333 A CN 1862333A
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- hole
- conducting strip
- staged
- reflector plate
- lcd according
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Abstract
The present invention relates to a liquid crystal display. It is characterized by that it utilizes a proper heat-transferring structure to eliminate non-uniform phenomenon of displayed picture. Said liquid crystal display at least includes the following several portions: frame body, reflecting sheet, heat-transferring sheet and circuit board. Said invention also provides the concrete structure of the above-mentioned every portion and the connection mode of all the portions.
Description
Technical field
The present invention is about a kind of LCD, especially in regard to a kind of LCD with the conductive structure that can eliminate the display frame uneven phenomenon.
Background technology
Integrated circuit (IC) can produce high heat usually in the process of data processing, so how to strengthen heat dissipation design to increase heat dissipation, always be that electronic module designs a considerable ring, especially in the field of display.Because the display speed of data promotes day by day, and because of the volume restrictions field of notebook (particularly) causes the distance of electronic component in the liquid crystal display device module and optical module quite approaching, so the optical appearance of the liquid crystal of blooming, light guide plate or array/unit (Array/Cell) that the high heat that electronic component distributed can the local influence backlight module.
For stable twisted nematic LCD (TN LCD), its penetrance can present the relation of negative temperature coefficient along with temperature variation, and promptly temperature heals, and then penetrance is lower for height.Add, when liquid crystal cells and liquid crystal condition not simultaneously, the variable quantity of penetrance may strengthen, the phenomenon that makes temperature rising penetrance reduce is more remarkable.
In liquid crystal display device module, under the bigger display pattern of some load, the electronic package on the printed circuit board (PCB) can produce the phenomenon of high temperature, and its temperature can be up to more than 60 degree Celsius.On the more harsh product of module volume requirement, liquid crystal panel module as notebook, it can and be fixed on the backlight module the printed circuit board (PCB) reflexed when assembling, and in order to save volume, the electronic package on the printed circuit board (PCB) can be kept quite little distance inwardly and with reflector plate.In this case, when heat that electronic package produced concentrates on device without any heat insulation or heat conduction, can make liquid crystal produce the phenomenon of localized hyperthermia, thereby cause the local inhomogeneous of display frame.
Traditional solution to the problems described above is that thermal conductive metal plate is pasted on after the reflector plate, and in order to the high heat that electronic package produced is evenly distributed, and the partial penetration rate of avoiding concentrating on certain liquid crystal cells that a bit causes because of heat reduces.Yet directly attach the result of conducting strip, because the thermal expansivity of conducting strip is different with reflector plate, thus can cause the local inhomogeneous of display frame, and at the edge of conducting strip also vestige can appear, make picture produce tangible bright line on the contrary
Summary of the invention
Therefore, one aspect of the present invention is providing a kind of LCD exactly, eliminates the phenomenon of display frame inequality by suitable conductive structure.
Aluminium platinum) and circuit board according to first preferred embodiment of the present invention, LCD of the present invention comprises glue frame, reflector plate, first conducting strip at least, and (for example:, wherein the glue frame has planar bottom surface, and is formed with the staged through hole on the planar bottom surface.Reflector plate is smooth on the planar bottom surface of glue frame, and first conducting strip is connected to the staged through hole, and with reflector plate predeterminable range is arranged apart.Circuit board is arranged on reflector plate, and smooth circuit board has at least one electronic package in a relative side of glue frame, and this electronic package is placed in the staged through hole.
According to this first preferred embodiment, aforesaid staged through hole can be at the opening that has larger sectional area near the reflector plate place.
According to second preferred embodiment of the invention, aforesaid staged through hole can have the long-pending opening of small cross sections near the reflector plate place.
According to third preferred embodiment of the invention, aforesaid glue frame also has a side, and also is provided with a through hole on this side, in order to the holding electronic assembly.The LCD of this 3rd preferred embodiment also comprises at least: be arranged between through hole and the electronic package second conducting strip (for example: aluminium platinum).This through hole can be the second staged through hole, and second conducting strip can be arranged on the electronic package or in the through hole.
According to this 3rd preferred embodiment, the second staged through hole can be at the opening that has larger sectional area near the reflector plate place.
The another preferred embodiment according to the present invention, the second staged through hole can have the long-pending opening of small cross sections near the reflector plate place.
In addition, first conducting strip and second conducting strip can be arranged on the staged through hole by bonded assemblies or locked assembly.And LCD of the present invention also can comprise at least: with the light guide plate of reflector plate adjacency; Be arranged at least one blooming piece on the light guide plate; And be arranged on display panels on the blooming piece.Circuit board of the present invention can be for example fibre-glass printed circuit board or flexible printed wiring board.
Description of drawings
For above and other objects of the present invention, feature, advantage and embodiment can be become apparent, institute
Being described in detail as follows of accompanying drawing:
Figure 1A and Figure 1B illustrate the structural representation according to the LCD of first preferred embodiment of the invention respectively, wherein use different modes that conducting strip is set.
Fig. 2 A and Fig. 2 B illustrate the structural representation according to the LCD of second preferred embodiment of the invention respectively, wherein use different modes that conducting strip is set.
Fig. 3 illustrates the structural representation according to the LCD of the 3rd preferred embodiment of the present invention.
The primary clustering symbol description
100 circuit boards, 110,112 electronic packages
120 glue frames, 200,202 conducting strips
210,212 bonded assemblies
220 locked assemblies
302,304,306 staged through holes
310,312 through holes
320,322,330 depressed parts
400 reflector plates, 410 light guide plate
420 blooming pieces, 430 liquid crystal cells
D1, d2 predeterminable range
Embodiment
The invention is characterized in and a staged through hole is set earlier on the glue frame; Conducting strip is set again on the stepped sidewalls of staged through hole, so that conducting strip is not direct and reflector plate attaches, but be fixed on the glue frame, and with reflector plate in a space (predeterminable range) at interval, avoid conducting strip to be subjected to temperature variation and reflector plate is caused local rugosity, and remove the vestige that conducting strip attaches the edge.
Please refer to Figure 1A and Figure 1B, it illustrates the structural representation according to the LCD of first preferred embodiment of the invention respectively, wherein uses different modes that conducting strip is set.LCD of the present invention comprises at least: circuit board 100, glue frame 120, conducting strip 200, reflector plate 400, with the light guide plate 410 of reflector plate 400 adjacency, be arranged at least one blooming piece 420 on the light guide plate 410 and be arranged on liquid crystal cells 430 on the blooming piece 420.Glue frame 120 has a planar bottom surface (not indicating), and reflector plate 400 is smooth on the planar bottom surface of glue frame 120.Be formed with through hole 310 on the planar bottom surface of glue frame 120, at least one electronic package 110 in order to ccontaining circuit board 100, wherein circuit board 100 is arranged on the opposite side of glue frame 120 with respect to reflector plate 400, and circuit board 100 can be for example fibre-glass printed circuit board or flexible printed wiring board.
The present invention forms depressed part 320 on the sidewall of through hole 310, this has depressed part 320 through holes 310 and promptly forms so-called staged through hole 302.Then, conducting strip 200 is connected on the top surface of depressed part 320 of staged through hole 302, evenly distributes in order to the high heat that electronic package 110 is produced.Because the setting of staged through hole 302, conducting strip 200 just nature has a predeterminable range d1 (space) apart with reflector plate 400, so can avoid conducting strip 200 to cause the part rugosity to reflector plate effectively, and can remove traditional conducting strip edge and be attached to vestige on the reflector plate because of being subjected to temperature variation.Shown in Figure 1A and Figure 1B, the staged through hole 302 of this first preferred embodiment is at the opening that has larger sectional area near reflector plate 400 places, and promptly depressed part 320 is formed in the end of through hole 310 near reflector plate 400.In addition, shown in Figure 1A, conducting strip 200 by bonded assemblies 210 (for example: adhesive plaster) be fixed in the staged through hole 302 is; Shown in Figure 1B, conducting strip 200 by locked assembly 220 (for example: screw) be fixed in the staged through hole 302 is.
Please refer to Fig. 2 A and Fig. 2 B, it illustrates the structural representation of LCD according to a second, preferred embodiment of the present invention respectively, wherein uses different modes that conducting strip is set.Different with first preferred embodiment of the present invention is, the staged through hole 304 of this second preferred embodiment has the long-pending opening of small cross sections near reflector plate 400 places, be that depressed part 330 is formed on the relative other end of through hole 310 and reflector plate 400, and conducting strip 200 have a predeterminable range d2 (space) apart with reflector plate 400.In addition, shown in Fig. 2 A, conducting strip 200 by bonded assemblies 210 (for example: adhesive plaster) be fixed in the staged through hole 304 is; Shown in Fig. 2 B, conducting strip 200 by locked assembly 220 (for example: screw) be fixed in the staged through hole 304 is.
Please refer to Fig. 3, it illustrates the structural representation according to the LCD of third preferred embodiment of the invention.In some situation, the side of glue frame 120 also can be provided with circuit board 100.At this moment, just can not be formed with through hole 312 on the side of glue frame 120 (indicating), in order at least one electronic package 112 of ccontaining circuit board 100.This 3rd preferred embodiment is between through hole 312 and electronic package 112 conducting strip 202 to be set, and evenly distributes in order to the high heat that electronic package 112 is produced.Conducting strip 202 can be arranged on the electronic package 112; Or be arranged on through hole 312 by bonded assemblies 212 or locked assembly (not shown).
Similarly, third preferred embodiment of the invention also can form depressed part 322 on the sidewall of through hole 312, and forms staged through hole 306.Then, conducting strip 202 is connected on the top surface of depressed part 322 of staged through hole 306.As shown in Figure 3, staged through hole 306 is at the opening that has larger sectional area near reflector plate 400 places.In addition, according to another preferred embodiment of the present invention, staged through hole 306 can have the long-pending opening of small cross sections near reflector plate 400 places.
What deserves to be mentioned is that conducting strip 200 of the present invention and 202 can be made by any Heat Conduction Material, for example: aluminium platinum.
By the invention described above preferred embodiment as can be known, using advantage of the present invention is: the high heat affecting liquid crystal cells 430 that can avoid electronic package to produce causes display frame inhomogeneous, and can avoid conducting strip to be subjected to temperature variation and reflector plate is caused local rugosity, and remove the vestige that conducting strip attaches the edge, thereby eliminate the phenomenon of display frame inequality effectively.
Though the present invention with preferred embodiment openly as above; right its is not in order to qualification the present invention, any insider, without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (15)
1. LCD comprises:
One glue frame has a planar bottom surface, and this planar bottom surface is formed with one first staged through hole;
One reflector plate, smooth in this planar bottom surface of this glue frame;
One first conducting strip is connected to this first staged through hole, and wherein this first conducting strip and this reflector plate have a predeterminable range apart; And
One circuit board, it is smooth in the opposite side of this glue frame to be arranged on this reflector plate, and this circuit board has at least one first electronic package, and wherein this first electronic package is placed in this first staged through hole.
2. LCD according to claim 1, wherein this first conducting strip is an aluminium platinum.
3. LCD according to claim 1, this first staged through hole wherein is at the opening that has larger sectional area near this reflector plate place.
4. LCD according to claim 1, wherein this first staged through hole has the long-pending opening of small cross sections near this reflector plate place.
5. LCD according to claim 1, wherein this first conducting strip is arranged on this first staged through hole by a bonded assemblies.
6. LCD according to claim 1, wherein this first conducting strip is arranged on this first staged through hole by a locked assembly.
7. LCD according to claim 1 also comprises at least:
One light guide plate is with this reflector plate adjacency;
At least one blooming piece is arranged on this light guide plate; And
One display panels is arranged on this blooming piece.
8. LCD according to claim 1, wherein this glue frame also has a side, and this side is provided with a through hole, and this LCD also comprises at least:
At least one second electronic package is arranged on this circuit board, and wherein this second electronic package is placed in this through hole; And
One second conducting strip is arranged between this through hole and this second electronic package.
9. LCD according to claim 8, wherein this through hole is one second staged through hole, this second conducting strip is connected to this second staged through hole.
10. LCD according to claim 9, this second staged through hole wherein is at the opening that has larger sectional area near this reflector plate place.
11. LCD according to claim 9, wherein this second staged through hole has the long-pending opening of small cross sections near this reflector plate place.
12. LCD according to claim 8, wherein this second conducting strip is arranged on this second electronic package.
13. LCD according to claim 8, wherein this second conducting strip is an aluminium platinum.
14. LCD according to claim 8, wherein this second conducting strip is arranged on this through hole by a bonded assemblies.
15. LCD according to claim 8, wherein this second conducting strip is arranged on this through hole by a locked assembly.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610087795 CN1862333A (en) | 2006-06-07 | 2006-06-07 | Liquid crystal display |
| CNB2007101025754A CN100443999C (en) | 2006-06-07 | 2007-05-16 | Backlight module and liquid crystal display containing the backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610087795 CN1862333A (en) | 2006-06-07 | 2006-06-07 | Liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1862333A true CN1862333A (en) | 2006-11-15 |
Family
ID=37389797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610087795 Pending CN1862333A (en) | 2006-06-07 | 2006-06-07 | Liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1862333A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806964A (en) * | 2010-03-09 | 2010-08-18 | 友达光电股份有限公司 | Monitor and rubber frame |
| CN103676252A (en) * | 2013-11-26 | 2014-03-26 | 京东方科技集团股份有限公司 | Display unit |
| CN105717686A (en) * | 2011-03-25 | 2016-06-29 | 青岛海信电器股份有限公司 | LED (Light-Emitting Diode) display device |
| CN105911732A (en) * | 2011-03-25 | 2016-08-31 | 青岛海信电器股份有限公司 | LED display device |
| CN106019724A (en) * | 2016-05-25 | 2016-10-12 | 京东方科技集团股份有限公司 | Display panel and preparation method thereof, display |
| CN102023406B (en) * | 2009-09-14 | 2017-02-15 | 北京京东方光电科技有限公司 | Liquid crystal display panel and method for producing same |
-
2006
- 2006-06-07 CN CN 200610087795 patent/CN1862333A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102023406B (en) * | 2009-09-14 | 2017-02-15 | 北京京东方光电科技有限公司 | Liquid crystal display panel and method for producing same |
| CN101806964A (en) * | 2010-03-09 | 2010-08-18 | 友达光电股份有限公司 | Monitor and rubber frame |
| CN105717686A (en) * | 2011-03-25 | 2016-06-29 | 青岛海信电器股份有限公司 | LED (Light-Emitting Diode) display device |
| CN105911732A (en) * | 2011-03-25 | 2016-08-31 | 青岛海信电器股份有限公司 | LED display device |
| CN105717686B (en) * | 2011-03-25 | 2019-04-19 | 青岛海信电器股份有限公司 | A kind of LED display device |
| CN103676252A (en) * | 2013-11-26 | 2014-03-26 | 京东方科技集团股份有限公司 | Display unit |
| CN103676252B (en) * | 2013-11-26 | 2016-06-01 | 京东方科技集团股份有限公司 | A kind of display unit |
| CN106019724A (en) * | 2016-05-25 | 2016-10-12 | 京东方科技集团股份有限公司 | Display panel and preparation method thereof, display |
| WO2017202181A1 (en) * | 2016-05-25 | 2017-11-30 | 京东方科技集团股份有限公司 | Display panel, manufacturing method therefor and display device |
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