CN201166764Y

CN201166764Y - Liquid crystal display apparatus

Info

Publication number: CN201166764Y
Application number: CNU200820056230XU
Authority: CN
Inventors: 徐亮; 吴宾宾
Original assignee: SVA Group Co Ltd
Current assignee: SVA Group Co Ltd
Priority date: 2008-03-14
Filing date: 2008-03-14
Publication date: 2008-12-17
Anticipated expiration: 2018-03-14

Abstract

The utility model relates to a liquid crystal display device, which comprises a first substrate and a second substrate oppositely arranged. A plurality of pixel regions are formed on the first substrate and the second substrate. The frame sealing material is coated at the periphery of the pixel regions, and used for bonding the first substrate and the second substrate. A liquid crystal layer is filled in the region sealed by the frame sealing material; a closed ring is formed on the ring inner side sealed by the frame sealing material and made of the resin material, and has a height which is approximately equal to the thickness of a liquid crystal box. The liquid crystal display device can prevent the contamination of the liquid crystal caused by the frame sealing material, and the structure is not limited by the dimension of a liquid crystal display screen.

Description

Liquid crystal indicator

Technical field

The utility model relates to a kind of liquid crystal display device, relates in particular to a kind of liquid crystal indicator that prevents liquid crystal pollution.

Background technology

Along with the development of information society, people have obtained growth to the demand of display device.In order to satisfy this demand, nearest several flat panel display equipments, as: liquid crystal indicator (LCD), plasm display device (PDP) have all obtained swift and violent development.In the middle of flat-panel display device, liquid crystal indicator is because its weight is low, volume is little, advantage of low energy consumption, is progressively replacing the cold cathode display device.

Liquid crystal indicator is bigger to size at present, performance is better, the lower direction of price develops, and all these have promoted design, the exploitation of liquid crystal indicator, the development of manufacturing technology.

The manufacture method of liquid crystal indicator mainly is divided into traditional liquid crystal vacuum impregnation and the present drop-method of being accepted by most of producer (ODF:One drop fill) at present.Below these two kinds of methods simply are introduced:

The manufacture method of vacuum impregnation:

1) at first on color membrane substrates or array base palte the periphery in the zone of corresponding each display screen be coated with fabric width frame material, but in order to guarantee follow-up liquid crystal injection technology, the formed figure of envelope frame material can not be the zone of a closure, and must leave one or more openings as required.

2) form sept on color membrane substrates or array base palte, these septs can also can be realized by the mode of photoetching by scattering the mode of bedding and padding;

3) color membrane substrates and array base palte are fit together.

4) mode by light or thermmohardening makes the sclerosis of envelope frame material.

5) substrate cut that posts is become little display screen.

6) display screen is carried out application of vacuum, put into then in the middle of the liquid crystal, according to the principle of capillarity, liquid crystal enters in the middle of the display screen slowly.

7) seal the osculum of original reservation by sealing material, and, make its sclerosis by treatment with ultraviolet light.

As can be seen and since when adopting method for implanting liquid crystal to be full of the speed of whole liquid crystal cell slow, so adopt this method productive temp long.Simultaneously, because before the injection liquid crystal, envelope frame material has all hardened fully, do not need to worry to seal the problem that the frame material pollutes liquid crystal.

The manufacture method of liquid crystal drop-method:

1) at first on color membrane substrates or array base palte the periphery in the zone of corresponding each display screen be coated with fabric width frame material owing to adopt drop-method, should be the ring of a closure so at this moment seal the formed figure of frame material.

2) form sept on color membrane substrates or array base palte, these septs can also can be realized by the mode of photoetching by scattering the mode of bedding and padding.

3) splash into certain amount of liquid crystal on color film or array base palte, the position of liquid crystal should be in the inside of the formed closed hoop of envelope frame material.

4) color membrane substrates and array base palte are bonded in vacuum environment.

5) will seal the frame material by light and heat hardens fully.

6) substrate cut that posts is become little display screen.

Compare with above-mentioned injection method, adopting the main advantage of liquid crystal drop-method is to have saved the production time greatly.But compare with injection method, in the drop-method, when envelope frame material did not also harden, liquid crystal had just been splashed into the respective regions of display screen, and this has caused liquid crystal to be polluted easily.

No matter the large-scale liquid crystal indicator that uses is the notebook computer display screen at present, and LCD, or LCD TV all adopt the central ODF technology of mentioning of background material to produce basically.Because ODF technology has been saved the production time greatly,, for example adopt ODF technology in the mobile phone screen so producer is also arranged at present at smaller screen.

A but problem that exists in the ODF technology, the ODF process using splashes into liquid crystal earlier, the method of the frame material of sclerosis envelope then, the pollution that this method has caused liquid crystal to be very easy to be subjected to sealing the frame material for large-sized liquid crystal display, can prevent by the method that move to the center of screen the position that liquid crystal is splashed into, but for undersized display device, be subjected to the restriction of size own, being difficult to avoid sealing the frame material does not also have before the sclerosis, and it comes in contact with liquid crystal.As shown in Figure 1.Envelope frame material and too early the contacting of liquid crystal can cause its inner organic molecule to enter in the middle of the liquid crystal, thereby physics, the chemical property of liquid crystal are brought influence.

Some spot-like projections that hinder liquid crystal movements or wire projection are set around having mentioned in the viewing area in publication number is the Jap.P. of JP2003-315810 to be hindered liquid crystal and seals the frame material and contact too early, but this method is difficult to be applied on the little liquid crystal display device equally, main cause is that for little liquid crystal display device edge of display area is very short apart from the distance of envelope frame material.This has limited the quantity of these projections, so the effect that is difficult to play.

The utility model content

Technical problem to be solved in the utility model provides a kind of liquid crystal indicator that the frame material pollutes liquid crystal and is common to the size dimension display screen that prevents to seal.

The utility model is to solve the problems of the technologies described above the technical scheme that adopts to provide a kind of liquid crystal indicator, comprises first substrate and second substrate that are oppositely arranged, is formed with a plurality of pixel regions on described first substrate and second substrate; Be coated with envelope frame material around the described pixel region, described envelope frame material lumps together first substrate and second substrate junction; Be filled with liquid crystal layer in the zone of described envelope frame material sealing; The ring inboard that wherein said envelope frame material surrounds also is formed with a closed hoop, and described closed hoop is made of resin material, and it is thick that the height of closed hoop is approximately equal to liquid crystal cell.

Be formed with the photoetching bedding and padding between described first substrate and second substrate, described closed hoop can be made by the photoetching bedding and padding.

Be formed with chromatograph on described first substrate, be formed with the photoetching bedding and padding between first substrate and second substrate, described closed hoop can be made jointly by photoetching bedding and padding and chromatograph, and the below of photoetching bedding and padding is lined with chromatograph.

Form the red, green, blue chromatograph on described first substrate, described closed hoop can be made by red, green, blue chromatograph or its permutation and combination.

Be formed with resin bed on described second substrate, described closed hoop can be made by resin bed.

Therefore, liquid crystal indicator of the present utility model is owing to also be formed with a closed hoop of being made by resin material in the ring inboard that envelope frame material surrounds, this closed hoop does not limit the diffusion of liquid crystal in liquid crystal cell, but when liquid crystal molecule is diffused near envelope frame material regional, envelope frame material can't be directly and liquid crystal molecule come in contact, therefore, can prevent that liquid crystal from being sealed the frame material and polluting, and this structure is not subjected to the restriction of LCDs size; Especially when making photoetching bedding and padding, chromatograph or other making layer, make closed hoop, be issued to effect in the situation that does not increase the complex process degree especially by the material of those layers.

Description of drawings

For above-mentioned purpose of the present utility model, feature and advantage can be become apparent, below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, wherein:

Fig. 1 pollutes the liquid crystal synoptic diagram for two substrates applying finishing back envelope frame material in the prior art;

Fig. 2 is fit effect synoptic diagram after finishing of the utility model two substrates;

Fig. 3 is the structural representation of the utility model embodiment;

Fig. 4 is the structural representation of the utility model embodiment;

Fig. 5 is the structural representation of the utility model embodiment;

Fig. 6 is the structural representation of the utility model embodiment;

Fig. 7 is the structural representation of the utility model embodiment.

11, substrate 11a: the first substrate 11b: second substrate 12: envelope frame material

13: liquid crystal layer 14: closed hoop 15: chromatograph

Embodiment

Embodiment 1

Fig. 2 is fit effect synoptic diagram after finishing of the utility model two substrates; Fig. 3 is the structural representation of the utility model embodiment 1.Please refer to Fig. 2 and Fig. 3, liquid crystal indicator of the present utility model comprises the first substrate 11a and the second substrate 11b that is oppositely arranged, and is formed with pixel region on the described first substrate 11a and the second substrate 11b; Be coated with envelope frame material 12 around the pixel region, be filled with liquid crystal layer 13 in the zone of described envelope frame material 12 sealings, described envelope frame material 12 combines the first substrate 11a and the second substrate 11b; Guarantee that simultaneously liquid crystal layer 13 can not leak.The ring inboard that envelope frame material 12 surrounds also is formed with a closed hoop 14, and described closed hoop 14 is made of resin material, and it is thick that the height of closed hoop is approximately equal to liquid crystal cell.

The first substrate 11a, the second substrate 11b are the insulation transparent substrate, as glass substrate, plastic substrate, are formed with many cross one another sweep traces and signal wire on the second substrate 11b, and the infall of sweep trace and signal wire is provided with TFT device (not illustrating among the figure); Be formed with black matrix, three kinds of chromatographs of red, green, blue (not illustrating among the figure) on the first substrate 11a.

With reference to Fig. 3, be formed with photoetching bedding and padding (PhotoSpacer is called for short PS) between the described first substrate 11a and the second substrate 11b, it is thick that PS is used to support liquid crystal cell, and described closed hoop 14 can be made by the photoetching bedding and padding.Promptly when making the photoetching bedding and padding, utilize PS material closed hoop 14, height and liquid crystal cell are thick quite, can be slightly less than the thick height of liquid crystal cell as shown in Figure 3; Or as shown in Figure 4, after the just satisfied first substrate 11a of the height of closed hoop 14 and the second substrate 11b fit together, the lower surface of closed hoop 14 just touched the inside surface of the second substrate 11b.

With reference to Fig. 5, on the first substrate 11a, be formed with chromatograph 15, be formed with the photoetching bedding and padding between the first substrate 11a and the second substrate 11b, described closed hoop 14 can be made jointly by photoetching bedding and padding and chromatograph 15, the below of photoetching bedding and padding is lined with chromatograph 15, and chromatograph 15 can be a kind of of red, green, blue chromatograph or its permutation and combination.

With reference to Fig. 6, be formed with the red, green, blue chromatograph on the first substrate 11a, described closed hoop 14 is made by red, green, blue chromatograph 15 or its permutation and combination.

With reference to Fig. 7, be formed with resin bed on the second substrate 11b, in order to increase the transmittance of liquid crystal indicator, described closed hoop is made by the resin bed material, promptly becomes closed hoop by this resin bed material when making resin bed.

Therefore, the liquid crystal indicator of the utility model embodiment is by when making making layers such as bedding and padding, chromatograph, resin bed, utilize those materials to make closed hoop in the inboard that envelope frame material surrounds, under the condition that does not increase existing process or complexity, prevent to seal the frame material and pollute liquid crystal, and this structure all is suitable for the size dimension LCDs.

Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; any those skilled in the art; in not breaking away from spirit and scope of the present utility model; when doing a little modification and perfect, therefore protection domain of the present utility model is worked as with being as the criterion that claims were defined.

Claims

1. liquid crystal indicator comprises:

First substrate that is oppositely arranged and second substrate are formed with a plurality of pixel regions on described first substrate and second substrate;

Be coated with envelope frame material around the described pixel region, described envelope frame material lumps together first substrate and second substrate junction;

Be filled with liquid crystal layer in the zone of described envelope frame material sealing;

It is characterized in that the ring inboard that described envelope frame material surrounds also is formed with a closed hoop, described closed hoop is made of resin material, and it is thick that the height of closed hoop is approximately equal to liquid crystal cell.

2. liquid crystal indicator as claimed in claim 1 is characterized in that, is formed with the photoetching bedding and padding between described first substrate and second substrate, and described closed hoop is made by the photoetching bedding and padding.

3. liquid crystal indicator as claimed in claim 1, it is characterized in that, be formed with chromatograph on described first substrate, be formed with the photoetching bedding and padding between first substrate and second substrate, described closed hoop is made jointly by photoetching bedding and padding and chromatograph, and the below of photoetching bedding and padding is lined with chromatograph.

4. liquid crystal indicator as claimed in claim 1 is characterized in that, described first substrate is formed with the red, green, blue chromatograph, and described closed hoop is made by red, green, blue chromatograph or its permutation and combination.

5. liquid crystal indicator as claimed in claim 1 is characterized in that, is formed with resin bed on described second substrate, and described closed hoop is made by resin bed.