CN100434979C - Display unit - Google Patents
Display unit Download PDFInfo
- Publication number
- CN100434979C CN100434979C CNB2006100586615A CN200610058661A CN100434979C CN 100434979 C CN100434979 C CN 100434979C CN B2006100586615 A CNB2006100586615 A CN B2006100586615A CN 200610058661 A CN200610058661 A CN 200610058661A CN 100434979 C CN100434979 C CN 100434979C
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- light
- light source
- liquid crystal
- display unit
- guide plate
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Abstract
The invention is a display unit, comprising a liquid crystal panel, a circuit board, a light guide plate, at least a light source and a double-faced adhesive tape, where the light source is connected with the circuit board and located outside the light guide plate, and the double-faced adhesive tape is used to bond the liquid crystal panel with the light guide plate and has at least a gap which corresponds to the light source to reduce the irradiation of the light source on the double-faced adhesive tape and there is a halo formed at the gap.
Description
Technical field
The present invention is relevant with LCD, is meant a kind of display unit that reduction is present near the halation phenomenon of light source that has in more detail.
Background technology
Press, the display effect of panel of LCD and quality are the significant consideration of consumer when choosing this product, and for this reason, the dealer drops into substantial contribution and technical research invariably, and the phase can effectively promote the display effect and the quality of panel of LCD.
Only partly display often is to finish the back disappearance of finding that just it is hiding of assembling, aforementioned disappearance is as being present in the backlight module, the halation phenomenon that the light that produces because of light source is caused when passing double sticky tape now cooperates the display device structure shown in Fig. 1,2 that the halation phenomenon that this structure exists is described:
This display device structure comprises a liquid crystal panel 1, one flexible printed wiring board 2, one light source 3 (being depicted as LED) as drawing, one light guide plate 4 and a two-sided adhesive tape 5, wherein, this flexible printed wiring board 2 electrically connects with this liquid crystal panel 1, and these flexible printed wiring board 2 surfaces are provided with this light source 3, this light source 3 forms a light-emitting area 3a and an incidence surface 4a respectively with these light guide plate 4 corresponding one sides, the two sides of this double sticky tape 5 is bonding on the surperficial 1a of this liquid crystal panel 1 and the exiting surface 4b of this light guide plate 4 respectively, with this make the light that produced via light guide plate 4 exiting surface 4b can be really and equably projection go into liquid crystal panel 1, to reach the demonstration purpose.
Yet, in the effective launching zone of light source 3, when light runs into the transparent adhesive tape material, because of the tool guiding property of glue material own, therefore light can change in the inner progress path that produces of glue material, and this situation not only can weaken the energy of light, and produces halation phenomenon in glue material position, especially the locating of the most close light source 3, its halation phenomenon more highlights.Figure 1 shows that example, because double sticky tape 5 is the L type, and light source 3 faces the turning point, therefore will form strong halation 6 in this turning point, in this way, will have a strong impact on the display effect and the quality of liquid crystal panel 1.
Summary of the invention
The object of the present invention is to provide a kind of display unit, it is provided with a breach by this double sticky tape in relative this light source position, reduce this this double sticky tape of light source direct irradiation and form halation in this place with this, and can reduce halation phenomenon, promote the display effect and the quality of display according to this.
For achieving the above object, a kind of display unit provided by the invention includes:
One liquid crystal panel, two big faces of this liquid crystal panel are respectively a display surface and a non-display surface;
One circuit board electrically connects with this liquid crystal panel;
One light guide plate is arranged at the non-display surface one side of this liquid crystal panel, and this light guide plate is made as an exiting surface in the one side towards this liquid crystal panel, and this light guide plate is formed with an incidence surface at least, and this incidence surface is positioned at different this exiting surface position;
At least one light source is arranged at this light guide plate outside, and electrically connects with this circuit board, and this light source is formed with a light-emitting area, and this light-emitting area is corresponding to the incidence surface of this light guide plate; And
One two-sided adhesive tape (double coating tape), this double sticky tape simultaneously fits in this liquid crystal panel, and another side fits in the exiting surface of this light guide plate, and this double sticky tape has at least one breach, and this notch alignment is in this light source.
Described display unit, wherein this light source has a light-emitting area, and the gap width of this double sticky tape is greater than the light-emitting area width of this light source.
Described display unit, wherein this light source has a light-emitting area, and the gap width of this double sticky tape equals the light-emitting area width of this light source.
Described display unit, wherein this double sticky tape is established radial cross section in the both sides of this breach, and by a side of this light source towards opposite side direction flaring away from this light source.
Described display unit, wherein this circuit board is a flexible printed wiring board, and this light source is arranged at this flexible printed wiring board.
Described display unit, wherein this circuit board is a flexible printed wiring board, and this display unit includes a circuit of light sources plate, and this light source is arranged at this circuit of light sources plate, and this circuit of light sources plate and the electric connection of this flexible printed wiring board.
Described display unit, wherein this light source is light emitting diode (LED).
Described display unit wherein is provided with an optical diaphragm group between this light guide plate and this liquid crystal panel.
Description of drawings
Fig. 1 is the three-dimensional exploded view of general display unit.
Fig. 2 is the 2-2 direction cut-open view of Fig. 1.
Fig. 3 is the three-dimensional exploded view of a preferred embodiment of the present invention.
Fig. 4 is the combination of side view of the above-mentioned preferred embodiment of the present invention.
Fig. 5 is the partial top view of the above-mentioned preferred embodiment of the present invention, shows the breach of the light of LED generation by double sticky tape.
Fig. 6 is Fig. 5 roughly the same, and the gap width that shows double sticky tape is and increases progressively shape.
Fig. 7 is the three-dimensional exploded view of another preferred embodiment of the present invention.
Fig. 8 is the partial top view of above-mentioned another preferred embodiment of the present invention.
Embodiment
See also Fig. 3 to shown in Figure 5, display unit for a preferred embodiment of the present invention, aforementioned display unit is a LCD 10, it includes a liquid crystal panel 11, a light guide plate 12, an optical diaphragm group 13, a circuit board (is flexible printed wiring board 14 as drawing), and is the light source of LED 15 and a two-sided adhesive tape 16, wherein:
This liquid crystal panel 11 comprises a top glass substrate 11a and a lower glass substrate 11b, this two glass substrate 11a, 11b pour into liquid crystal material behind involution, liquid crystal panel 11 is formed with a display surface 11c and a non-display surface (among the figure not label), but this display surface 11c display text or figure.
This light guide plate 12 is arranged at the non-display surface below of liquid crystal panel 11, light guide plate 12 has an exiting surface 12a and at least one incidence surface 12b, in the present embodiment, this exiting surface 12a is formed at the one side of light guide plate 12 in the face of this liquid crystal panel 11, and a rescinded angle is established at light guide plate 12 a corner, and form this incidence surface 12b in the cross section of this rescinded angle, the effect of light guide plate 12 is that the light guiding that LED 15 can be produced turns to, and from exiting surface 12a directive liquid crystal panel 11.
This optical diaphragm group 13 includes diffusion sheet 131 and blast sheet 132 blooming pieces such as grade, its grade is located between light guide plate 12 and the liquid crystal panel 11, respectively in order to being spread and be condensed, to reach briliancy and the inhomogeneity purpose that improves liquid crystal panel 11 required backlights from the light that light guide plate 12 exiting surface 12a penetrate.
These flexible printed wiring board 14 1 ends and liquid crystal panel 11 electrically connect, and the other end is around electrically connect (figure does not show) to light guide plate 12 belows and with other electronic package (as PCB).
This LED 15 is located at flexible printed wiring board 14 surfaces, and it has a light-emitting area 15a, and the LED 15 after the assembling is positioned at light guide plate 12 outsides, and its light-emitting area 15a is in the face of this incidence surface 12b.
These double sticky tape 16 one sides fit in the display surface 11c outside left of liquid crystal panel 11, another side then is sticked along the periphery of light guide plate 12 exiting surface 12a, as shown in Figure 3, double sticky tape 16 of the present invention has a breach 161,161 pairs of this breach should incidence surface 12b, in other words, breach 161 faces the light-emitting area 15a of LED 15.
More than be the explanation of LCD 10 each member of the present invention and relevant position thereof, please continue with reference to shown in Figure 5, the light that is produced from LED 15 is radial ejaculation, because 161 of the breach of double sticky tape 16 of the present invention are at the most close LED 15 places, should locate, there is no any glue material exists, therefore when light passes through this breach 161, luminous energy is unlikely to be subjected to hindering influence and weakened too much, more do not have the formation of halation in this place, base this make the display effect of LCD 10 and quality can obtain to promote.
Other what deserves to be mentioned is that for effectively promoting display effect, breach 161 width W 1 of double sticky tape of the present invention are good with the face width W2 that is greater than or equal to LED 15 light-emitting area 15a.
Moreover, double sticky tape of the present invention also can be made into aspect as shown in Figure 6, promptly this double sticky tape 16 ' is established radial cross section 162 ' in the both sides of breach 161 ', and this double sticky tape 16 ' by a side of this light source 15 towards opposite side direction flaring away from this light source 15, this structure kenel can reduce the possibility that light meets with double sticky tape 16 ', to increase effective usability of light.
Please consult another preferred embodiment of display unit of the present invention shown in Fig. 7,8 again, this display unit is a LCD 20, it includes a liquid crystal panel 21, a light guide plate 22, a blooming group 23, one two-sided adhesive tape 24, a flexible printed wiring board 25, a circuit of light sources plate 26, one the one LED27 and one the 2nd LED 28, wherein liquid crystal panel 21, blooming group 23 are identical with previous embodiment with flexible printed wiring board 25, will not give unnecessary details in this, in after the narration that only just do not exist together:
Wherein, this light guide plate 22 is complete cuboid, its incidence surface 22a is in the face of those LED 27,28 light- emitting area 27a, 28a, again, the one LED 27 and the 2nd LED 28 are for together being arranged at the circuit of light sources plate 26 that is fitted on the double sticky tape 24, this circuit of light sources plate 26 electrically connects and is provided with a lead 26a, and this lead 26a differs from an end and 25 electric connections of this flexible printed wiring board of this circuit of light sources plate 26, as shown in Figure 8, double sticky tape 24 has a breach 241 and breach 242 respectively at a corresponding LED 27 and the 2nd LED 28 places, in other words, in those breach 241,242 places there is no the viscose composition and exist, and when therefore the light that is produced as a LED 27 and the 2nd LED 28 passes this place, do not have the formation of halation, in this way, make LCD 20 can obtain to have the backlight of high brightness and high uniformity.
The above only is a preferable possible embodiments of the present invention, changes so use the equivalent structure that instructions of the present invention and claim do such as, ought to be included in the claim of the present invention.
Claims (8)
1. display unit includes:
One liquid crystal panel, the two sides of this liquid crystal panel are respectively a display surface and a non-display surface;
One circuit board electrically connects with this liquid crystal panel;
One light guide plate is arranged at the non-display surface one side of this liquid crystal panel, and this light guide plate is made as an exiting surface in the one side towards this liquid crystal panel, and this light guide plate is formed with an incidence surface at least, and this incidence surface is positioned at different this exiting surface position;
At least one light source is arranged at this light guide plate outside, and electrically connects with this circuit board, and this light source is formed with a light-emitting area, and this light-emitting area is corresponding to the incidence surface of this light guide plate; And
One two-sided adhesive tape, this double sticky tape simultaneously fits in this liquid crystal panel, and another side fits in the exiting surface of this light guide plate, and this double sticky tape has at least one breach, and this notch alignment is in this light source.
2. display unit as claimed in claim 1 is characterized in that wherein this light source has a light-emitting area, and the gap width of this double sticky tape is greater than the light-emitting area width of this light source.
3. display unit as claimed in claim 1 is characterized in that wherein this light source has a light-emitting area, and the gap width of this double sticky tape equals the light-emitting area width of this light source.
4. as claim 2 or 3 described display units, it is characterized in that wherein this double sticky tape is established radial cross section in the both sides of this breach, and by a side of this light source towards opposite side direction flaring away from this light source.
5. display unit as claimed in claim 1 is characterized in that, wherein this circuit board is a flexible printed wiring board, and this light source is arranged at this flexible printed wiring board.
6. display unit as claimed in claim 1, it is characterized in that wherein this circuit board is a flexible printed wiring board, this display unit includes a circuit of light sources plate, this light source is arranged at this circuit of light sources plate, and this circuit of light sources plate and the electric connection of this flexible printed wiring board.
7. display unit as claimed in claim 1 is characterized in that, wherein this light source is a light emitting diode.
8. display unit as claimed in claim 1 is characterized in that, wherein is provided with an optical diaphragm group between this light guide plate and this liquid crystal panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100586615A CN100434979C (en) | 2006-03-06 | 2006-03-06 | Display unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100586615A CN100434979C (en) | 2006-03-06 | 2006-03-06 | Display unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101034216A CN101034216A (en) | 2007-09-12 |
| CN100434979C true CN100434979C (en) | 2008-11-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100586615A Expired - Fee Related CN100434979C (en) | 2006-03-06 | 2006-03-06 | Display unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100434979C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551538B (en) * | 2008-04-02 | 2010-12-15 | 胜华科技股份有限公司 | Liquid crystal display module and electronic device applying same |
| CN101769472A (en) * | 2008-12-30 | 2010-07-07 | 统宝光电股份有限公司 | Backlight module for increasing light output efficiency |
| US20120176567A1 (en) * | 2009-09-15 | 2012-07-12 | Sharp Kabushiki Kaisha | Liquid crystal display device |
| US9097832B2 (en) * | 2010-04-27 | 2015-08-04 | Xiao Lin Yu | Liquid crystal display (LCD) system and method |
| CN102073156B (en) * | 2010-10-27 | 2012-05-30 | 友达光电(厦门)有限公司 | Display device and assembling method thereof |
| CN102278675A (en) * | 2011-08-26 | 2011-12-14 | 广东长虹电子有限公司 | Backlight module and light guide plate thereof |
| WO2016159995A1 (en) * | 2015-03-31 | 2016-10-06 | Hewlett-Packard Development Company, L. P. | Printed circuit board |
| CN109509670A (en) * | 2017-09-15 | 2019-03-22 | 光宝科技股份有限公司 | Unit type back optical module and the backlight keyboard for applying it |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003121814A (en) * | 2001-10-11 | 2003-04-23 | Citizen Watch Co Ltd | Liquid crystal display device |
| CN1580893A (en) * | 2004-05-20 | 2005-02-16 | 友达光电股份有限公司 | Planar display device |
| JP2006010931A (en) * | 2004-06-24 | 2006-01-12 | Dainippon Ink & Chem Inc | Double-coated tape and liquid crystal display module unit using same |
| TWI250335B (en) * | 2003-09-19 | 2006-03-01 | Seiko Epson Corp | Electro-optical device, electronic equipment, and method for manufacturing electro-optical device |
-
2006
- 2006-03-06 CN CNB2006100586615A patent/CN100434979C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003121814A (en) * | 2001-10-11 | 2003-04-23 | Citizen Watch Co Ltd | Liquid crystal display device |
| TWI250335B (en) * | 2003-09-19 | 2006-03-01 | Seiko Epson Corp | Electro-optical device, electronic equipment, and method for manufacturing electro-optical device |
| CN1580893A (en) * | 2004-05-20 | 2005-02-16 | 友达光电股份有限公司 | Planar display device |
| JP2006010931A (en) * | 2004-06-24 | 2006-01-12 | Dainippon Ink & Chem Inc | Double-coated tape and liquid crystal display module unit using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101034216A (en) | 2007-09-12 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Dongguan Master LCD Monitors Co., Ltd. Assignor: Shenghua Science and Technology Co., Ltd. Contract record no.: 2010990000311 Denomination of invention: The method for transferring the display screen driving data and control driving module of the display unit Granted publication date: 20081119 License type: Exclusive License Open date: 20070912 Record date: 20100527 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081119 Termination date: 20150306 |
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| EXPY | Termination of patent right or utility model |