CN100487536C - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
- Publication number
- CN100487536C CN100487536C CNB2004100032494A CN200410003249A CN100487536C CN 100487536 C CN100487536 C CN 100487536C CN B2004100032494 A CNB2004100032494 A CN B2004100032494A CN 200410003249 A CN200410003249 A CN 200410003249A CN 100487536 C CN100487536 C CN 100487536C
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- crystal panel
- backlight assembly
- housing
- adhesive coating
- 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
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 134
- 239000000853 adhesive Substances 0.000 claims description 42
- 230000001070 adhesive effect Effects 0.000 claims description 42
- 238000000576 coating method Methods 0.000 claims description 41
- 239000011248 coating agent Substances 0.000 claims description 38
- 230000006750 UV protection Effects 0.000 claims description 11
- 239000002390 adhesive tape Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000001795 light effect Effects 0.000 claims description 4
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 abstract 3
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 230000004224 protection Effects 0.000 description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
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- Liquid Crystal (AREA)
Abstract
The liquid crystal display device includes one liquid crystal panel, one back light assembly, one outer frame and one light inducing adhering layer. The back light assembly and the outer frame are set on two sides of the liquid crystal panel separately; the outer frame covers the liquid crystal panel and the back light assembly; and the light inducing adhering layer is set between the liquid crystal panel and the outer frame to adhere the liquid crystal panel and the outer frame. When being irradiated with specific light, the light inducing adhering layer will lose its adhesiveness and the liquid crystal panel may be separated from the outer frame.
Description
Technical field
The invention relates to a kind of liquid crystal indicator, and be particularly to a kind of double-sided LCD device that uses two-sided direct type backlight assembly.
Background technology
Along with the evolution of display technology, display device produces various new-type display device from the continuous evolution of traditional cathode ray tube (CRT).Wherein, advantages such as that liquid crystal indicator (LCD) has is frivolous, power saving, low radiation, therefore become one of common now display device gradually, can be widely used among communication, information or the consumption electronic products such as mobile computer, digital camera, Video Camera, mobile phone.
Liquid crystal indicator mainly is to show with a liquid crystal panel (LCD panel), because liquid crystal panel itself can't be luminous, therefore must supply the light source that brightness is abundant and be evenly distributed, and makes normally show image of liquid crystal panel.The function of this supply light source is promptly undertaken by (backlight) backlight assembly.Backlight assembly can be according to the difference of its structure, and is divided into two kinds of side-light type backlight assembly and straight-down negative (or claiming flat) backlight assemblies.In addition, liquid crystal panel uses a housing (bezel) that it is covered with after backlight assembly combines usually, with the assembly of protection liquid crystal panel and backlight assembly.
Referring to Fig. 1, Fig. 1 is the structure of expression one known liquid crystal indicator.This known liquid crystal indicator has a liquid crystal panel 100, backlight assembly 110 and housing 120.Backlight assembly 110 generally includes assemblies such as diffusion sheet, prismatic lens, back up pad, the fluorescent tube as light source, reflector plate and light modulation site, at this detailed icon not.Housing 120 is provided with the perforate 125 of undersized in liquid crystal panel 100, with so that liquid crystal panel 100 expose to carry out Presentation Function.As shown in Figure 1, backlight assembly 110 is arranged at the downside of liquid crystal panel 100, and housing 120 then is that the upside by liquid crystal panel 100 covers downwards, and covering liquid crystal panel 100 and backlight assembly 110 are to constitute the structure of liquid crystal indicator.
One of purpose when liquid crystal indicator is made is to avoid the impact because of the external force collision produces to damage.Generally speaking, because liquid crystal panel 100 is the lower glass material of elasticity, the easiest generation destroys when liquid crystal indicator is subjected to impacting; Therefore, for considering the applicability of liquid crystal indicator, must adopt suitable safeguard procedures to liquid crystal panel 100, to reduce the probability of its destruction.Below referring to Fig. 2 a and Fig. 2 b, two kinds of liquid crystal panel commonly used 100 safeguard procedures are described.
Fig. 2 a is the upward view when combining with housing 120 for liquid crystal panel 100, its way is to adopt the way of inserting cushion 150 in the gap 130 (hatched example areas among Fig. 2 a) of 120 of liquid crystal panel 100 and housings, so that liquid crystal panel 100 and housing 120 are fixed by cushion 150.Cushion 150 generally can adopt shock absorption plastic material preferably, for example impact-resistant rubber, plastic or other material, therefore, when liquid crystal indicator is subjected to impacting, because cushion 150 absorbs most of energy that impacts, can reduce the probability that liquid crystal panel 100 destroys.
Yet, the way that the use cushion 150 of Fig. 2 a protects, because cushion 150 must have certain volume or thickness, can reach comparatively desirable protection effect, the width that therefore gap 130 of 120 of liquid crystal panel 100 and housings must be kept a certain size, so for the LCDs of the identical size of display size, size that then must increasing housing 120, thereby increase the volume of LCDs, be unfavorable for the space utilization and the portability of LCDs.
Fig. 2 b is the upward view of same liquid crystal panel 100 when combining with housing 120, it shows another kind of safeguard procedures, use the adhesive materials of tool such as adhesive tape in the liquid crystal panel 100 and zone 160 (hatched example areas among Fig. 2 b) that coincide of housing 120, liquid crystal panel 100 and housing 120 is bonded to each other, make liquid crystal panel 100 fixing with housing 120.Therefore, when liquid crystal indicator is subjected to impacting, as long as being fixed well of housing 120 and liquid crystal panel 100 then can absorb most of energy that impacts by housing 120.In addition, because cushion need not inserted in the gap 130 that liquid crystal panel 100 and housing are 120, therefore the dimension width in gap 130 can be dwindled, so for the LCDs of the identical size of display size, the size of housing 120 also can be dwindled relatively, the volume of LCDs is reduced, increase its space utilization and portability.
Yet, in the assembling process of LCDs, sometimes may be because locate the bad various factors that waits, (rework) need do over again; Yet, use the above-mentioned mode that is adhesively fixed, for asking the fixation of housing 120 and liquid crystal panel 100, general strong adhesive tape of stickability or the sticker of all adopting, therefore not only dismounting is difficult, and in the process of doing over again, cause easily the breakage of housing 120 or liquid crystal panel 100, like this then reduce the doing over again property of LCDs relatively.
Summary of the invention
In view of this, one of the present invention purpose promptly is to propose a kind of liquid crystal indicator, improved at the fixed liquid crystal panel safeguard procedures of known adhesion, employing photoinduction formula adhesion colloid is carried out the adhesion between housing and the liquid crystal panel, so can keep being fixed well of housing and liquid crystal panel, the volume of LCDs is reduced, increase its space utilization and portability, simultaneously when occurring doing over again demand, also can be by destroying the viscosity of colloid in the mode of the irradiate light of specific wavelength, and improve the doing over again property of LCDs.
The present invention discloses a kind of liquid crystal indicator, has a liquid crystal panel, a backlight assembly, a housing and a photoinduction adhesive coating.Backlight assembly and housing are arranged at the both sides of liquid crystal panel respectively, and backlight assembly has a uv-protection layer, housing covering liquid crystal panel and backlight assembly; The photoinduction adhesive coating then is to be arranged between liquid crystal panel and the housing, in order to adhering liquid crystal panel and housing.When the photoinduction adhesive coating was subjected to specific light irradiation, the photoinduction adhesive coating was subjected to the specific light effect and loses viscosity, makes that liquid crystal panel and housing are separable.
In the liquid crystal indicator of the present invention, backlight assembly also can be adhered to liquid crystal panel by another photoinduction adhesive coating.In addition, specific light generally is to be a ultraviolet light (ultraviolet light, UV light), and the photoinduction adhesive coating then can use the ultraviolet light induced adhesive tape.At this moment, preferably be provided with a uv-protection layer on the backlight assembly, preventing the ultraviolet light transmission, and the transmissive visible light.
In addition, in the liquid crystal indicator of the present invention, backlight assembly can adopt common side-light type backlight assembly or direct type backlight assembly.
For above-mentioned and other purpose of the present invention, feature and advantage can be become apparent, concrete preferred embodiment cited below particularly, and cooperate appended graphic elaborating.
Description of drawings
Fig. 1 is the exploded view of known liquid crystal indicator.
Fig. 2 a is the upward view of the liquid crystal panel of known use buffering fixed form when combining with housing.
Fig. 2 b is the upward view of the liquid crystal panel of known use adhesion fixed form when combining with housing.
Fig. 3 a is the synoptic diagram of the liquid crystal panel of liquid crystal indicator in one embodiment of the invention.
Fig. 3 b is the exploded view of liquid crystal indicator in the foregoing description.
Fig. 3 c is the upward view when liquid crystal panel combines with housing in the foregoing description.
Fig. 3 d is the side cutaway view of liquid crystal indicator in the foregoing description.
Fig. 4 is the synoptic diagram that liquid crystal indicator is done over again in the foregoing description.
The reference numeral explanation:
100～liquid crystal panel; 105～liquid crystal panel zone that coincides;
110～backlight assembly;
115～uv-protection layer;
120～housing;
125～perforate;
130～gap;
150～cushion;
160～zone coincides;
200～the first ultraviolet light induced adhesive coatings;
210～the second ultraviolet light induced adhesive coatings;
300～gap.
Embodiment
Below with a preferred embodiment liquid crystal indicator of the present invention is described.In this mandatory declaration, the explanation of present embodiment and accompanying drawing thereof are not in order to limit liquid crystal indicator of the present invention; In other words, protection scope of the present invention should be with being as the criterion that claim was defined.
Referring to Fig. 3 a and Fig. 3 b, the liquid crystal indicator of present embodiment is described.The liquid crystal indicator of present embodiment is to have a liquid crystal panel 100, a backlight assembly 110, a housing 120 and a photoinduction adhesive coating 200.Photoinduction adhesive coating 200 generally can adopt common ultraviolet light induced adhesive tape or sticker (UV responds to glue), its function is to be adhering liquid crystal panel 100 and housing 120, and when photoinduction adhesive coating 200 is subjected to a specific light (for example wavelength is lower than the ultraviolet light of general visible light) irradiation, can be subjected to this specific light effect and lose viscosity, make that so promptly liquid crystal panel 100 and housing 120 are separable.
Shown in Fig. 3 a, the zone 105 that coincides when liquid crystal panel 100 has with housing 120 assemblings, what therefore photoinduction adhesive coating 200 can be attached at liquid crystal panel 100 coincides regional 105.
Fig. 3 b is the exploded view that shows liquid crystal indicator in the present embodiment.Wherein, liquid crystal panel 100 shown in Fig. 3 a, is pasted with photoinduction adhesive coating 200.Backlight assembly 110 generally includes assemblies such as diffusion sheet, prismatic lens, back up pad, the fluorescent tube as light source, reflector plate and light modulation site, at this detailed icon not; Yet because these assemblies are film or laminal form mostly, in a single day its material is subjected to the irradiation of ultraviolet light, may produce rotten or destruction, therefore for the assembly of protection backlight assembly 110, a uv-protection layer 115 can be set on its surface.The effect of uv-protection layer 115 is to prevent the ultraviolet light transmission, but must allow visible optical transmission, so that the function of backlight assembly 110 supply light sources can normally act on.In addition, housing 120 is provided with the perforate 125 of undersized in liquid crystal panel 100, with so that liquid crystal panel 100 expose to carry out Presentation Function.
Shown in Fig. 3 b, backlight assembly 110 and housing 120 are arranged at the both sides of liquid crystal panel 100 respectively, backlight assembly 110 is the downsides that are arranged at liquid crystal panel 100, housing 120 then is that the upside by liquid crystal panel 100 covers downwards, covering liquid crystal panel 100 and backlight assembly 110 are to constitute the structure of liquid crystal indicator.
Again referring to Fig. 3 c and Fig. 3 d, respectively with look up and liquid crystal indicator that the side-looking direction shows present embodiment in conjunction with the time structure.Shown in Fig. 3 c, the zone that coincides (hatched example areas among Fig. 3 c) of liquid crystal panel 100 and housing 120, owing to be pasted with photoinduction adhesive coatings 200 such as ultraviolet light induced adhesive tape or sticker, therefore can liquid crystal panel 100 is bonded to each other firm with housing 120, make liquid crystal panel 100 fixing, and increase the resistance to impact of liquid crystal indicator with housing 120.In addition, shown in Fig. 3 d, produce collision owing to also may or sliding between liquid crystal panel 100 and the backlight assembly 110, so also can between backlight assembly 110 and liquid crystal panel 100, use another photoinduction adhesive coating (for example ultraviolet light induced adhesive tape or sticker) to adhere fixing because of friction.In other words, can be provided with the first ultraviolet light induced adhesive coating 200 between liquid crystal panel 100 and the housing 120, and can be provided with the second ultraviolet light induced adhesive coating 210 between liquid crystal panel 100 and the backlight assembly 110, and the first ultraviolet light induced adhesive coating 200 and the second ultraviolet light induced adhesive coating 210 all can adopt common ultraviolet light induced adhesive tape or sticker.
The liquid crystal indicator of present embodiment in the assembling processing procedure, can utilize above-mentioned photoinduction adhesive coating 200 (or 210) to carry out good fixing.In addition, when waiting dismounting to move if need do over again, then can be as shown in Figure 4, (maybe can change photoinduction adhesive coating 200 with ultraviolet light, the specific light of 210 specific wavelength) irradiating liquid crystal display device, so, then can make the first ultraviolet light induced adhesive coating 200 be subjected to action of ultraviolet light and lose viscosity, make that liquid crystal panel 100 and housing 120 are separable.Similarly, though not shown among Fig. 4, the second ultraviolet light induced adhesive coating 210 also is subjected to action of ultraviolet light and loses viscosity, so liquid crystal panel 100 is also separable with backlight assembly 110.At this moment, because photoinduction adhesive coating 200,210 has lost viscosity, therefore can on liquid crystal panel 100, not produce residual vestige, and be easy to remove.
In addition, among Fig. 4, because backlight assembly 110 is provided with uv-protection layer 115, can prevent the ultraviolet light transmission, therefore, when UV-irradiation, the assembly of backlight assembly 110 can not produce rotten because of the effect of ultraviolet light or destroy.
In this mandatory declaration, liquid crystal indicator of the present invention does not limit the structure of backlight assembly 110, therefore can suitably select common side-light type backlight assembly or direct type backlight assembly for use.
Function of the present invention is by using the photoinduction adhesive coating to carry out the fixing of housing and liquid crystal panel, can have the advantage of keeping the miniaturization of LCDs in the known adhesion fixed form, increasing its space utilization and portability; Simultaneously, when occurring doing over again demand, also can destroy the viscosity of photoinduction adhesive coating, and be easy to dismantle each assembly, improve the doing over again property of LCDs by mode with the irradiate light of specific wavelength.
Though the present invention discloses as above with concrete preferred embodiment; right its is not in order to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; still can do a little change and retouching, so protection scope of the present invention is when looking being as the criterion that claim defines.
Claims (11)
1. liquid crystal indicator comprises:
One liquid crystal panel;
One is arranged at the backlight assembly of a side of this liquid crystal panel, and this backlight assembly has a uv-protection layer;
One housing, this housing are arranged at the opposite side of this liquid crystal panel with respect to this backlight assembly, coat this liquid crystal panel and this backlight assembly; And
One photoinduction adhesive coating, this photoinduction adhesive coating is arranged between this liquid crystal panel and this housing, adhere this liquid crystal panel and this housing, when this photoinduction adhesive coating is subjected to specific light irradiation, this photoinduction adhesive coating is subjected to this specific light effect and loses viscosity, makes this liquid crystal panel separate with this housing.
2. liquid crystal indicator as claimed in claim 1 is characterized in that: this specific light is a ultraviolet light.
3. liquid crystal indicator as claimed in claim 2 is characterized in that: this uv-protection layer prevents this uv-protection layer of this ultraviolet light transmission, and this uv-protection layer of visible light transmissive.
4. liquid crystal indicator as claimed in claim 1 is characterized in that: this photoinduction adhesive coating comprises the ultraviolet light induced adhesive tape.
5. liquid crystal indicator as claimed in claim 1 is characterized in that: this backlight assembly is a side-light type backlight assembly.
6. liquid crystal indicator as claimed in claim 1 is characterized in that: this backlight assembly is a direct type backlight assembly.
7. liquid crystal indicator as claimed in claim 1 is characterized in that: this backlight assembly is to be adhered to this liquid crystal panel with another photoinduction adhesive coating.
8. liquid crystal indicator comprises:
One liquid crystal panel;
One is arranged at the backlight assembly of a side of this liquid crystal panel, and this backlight assembly has a uv-protection layer;
One housing, this housing are arranged at the opposite side of this liquid crystal panel with respect to this backlight assembly, coat this liquid crystal panel and this backlight assembly; And
One first ultraviolet light induced adhesive coating, this first ultraviolet light induced adhesive coating is arranged between this liquid crystal panel and this housing, adhere this liquid crystal panel and this housing;
One second ultraviolet light induced adhesive coating, this second ultraviolet light induced adhesive coating is arranged between this liquid crystal panel and this backlight assembly, adhere this liquid crystal panel and this backlight assembly;
When this first ultraviolet light induced adhesive coating and this second ultraviolet light induced adhesive coating are subjected to a UV-irradiation, this first ultraviolet light induced adhesive coating and this second ultraviolet light induced adhesive coating are subjected to this specific light effect and lose viscosity, make this liquid crystal panel, this housing separate with this backlight assembly.
9. liquid crystal indicator as claimed in claim 8 is characterized in that: this photoinduction adhesive coating comprises the ultraviolet light induced adhesive tape.
10. liquid crystal indicator as claimed in claim 8 is characterized in that: this backlight assembly is a side-light type backlight assembly.
11. liquid crystal indicator as claimed in claim 8 is characterized in that: this backlight assembly is a direct type backlight assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100032494A CN100487536C (en) | 2004-01-30 | 2004-01-30 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100032494A CN100487536C (en) | 2004-01-30 | 2004-01-30 | Liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1558279A CN1558279A (en) | 2004-12-29 |
| CN100487536C true CN100487536C (en) | 2009-05-13 |
Family
ID=34350783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100032494A Expired - Lifetime CN100487536C (en) | 2004-01-30 | 2004-01-30 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100487536C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008153293A2 (en) | 2007-06-15 | 2008-12-18 | Lg Innotek Co., Ltd | Display device and method for manufacturing thereof |
| TWI467275B (en) * | 2011-09-16 | 2015-01-01 | Au Optronics Corp | Display apparatus and assembling/disassembling method thereof |
| CN102623471B (en) * | 2012-03-27 | 2015-09-09 | 格科微电子（上海）有限公司 | The method for packing of imageing sensor |
| CN104571664B (en) * | 2013-10-25 | 2018-06-05 | 宏碁股份有限公司 | Touch control display apparatus |
| CN104359053A (en) * | 2014-12-08 | 2015-02-18 | 合肥鑫晟光电科技有限公司 | Backlight module, working method thereof, and display device |
| CN106019669A (en) * | 2016-06-14 | 2016-10-12 | 联想(北京)有限公司 | Display device and electronic equipment |
| CN109870837B (en) * | 2017-12-05 | 2021-10-15 | 华为终端有限公司 | Display assembly, display, terminal and display disassembling method |
| CN109390500A (en) * | 2018-12-03 | 2019-02-26 | 武汉华星光电半导体显示技术有限公司 | Display module and preparation method thereof, electronic device |
| CN111554189A (en) * | 2020-05-15 | 2020-08-18 | 京东方科技集团股份有限公司 | Flexible display device |
| CN115547197A (en) * | 2022-09-29 | 2022-12-30 | 厦门天马显示科技有限公司 | Display module and display device |
-
2004
- 2004-01-30 CN CNB2004100032494A patent/CN100487536C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1558279A (en) | 2004-12-29 |
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Granted publication date: 20090513 |
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