CN100368898C - Liquid crystal display panel - Google Patents
Liquid crystal display panel Download PDFInfo
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- CN100368898C CN100368898C CNB2003101026674A CN200310102667A CN100368898C CN 100368898 C CN100368898 C CN 100368898C CN B2003101026674 A CNB2003101026674 A CN B2003101026674A CN 200310102667 A CN200310102667 A CN 200310102667A CN 100368898 C CN100368898 C CN 100368898C
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Abstract
The present invention provides a liquid crystal display panel which comprises a first substrate a second substrate and a liquid crystal molecule layer, wherein the liquid crystal molecule layer is arranged between the first substrate and the second substrate, the second substrate also comprises an active region, sealant is surrounded outside the active region, and a gap supporter is arranged between the sealant and the active region so as to prevent the liquid crystal molecule layer from being polluted by sealant and support the first substrate.
Description
Technical field
The present invention relates to a kind of display panels, particularly relate to a kind of liquid crystal over silicon display panel of avoiding sealant (sealant) to pollute liquid crystal molecule.
Background technology
(liquid crystal on silicon, LCOS) display panel is a kind of display panels that utilizes semiconductor technology to produce pel array (pixel cell matrix), drive integrated circult and other electronic components on silicon wafer to liquid crystal over silicon.In addition, the liquid crystal over silicon display panel not only has technical advantages such as small pixel size, high brightness and high resolving power, also have advantages such as simple, the with low cost and volume of technology is little, therefore the liquid crystal over silicon display panel has begun to be used in for example Portable, personal communication audio-visual devices of palm video camera and WAP cellular phone etc., and the audio-visual equipment of projection TV and multimedia projector etc. for example.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the vertical view of known liquid crystal over silicon display panel, and Fig. 2 is the cut-open view of liquid crystal over silicon display panel 2-2 ' along the line shown in Figure 1.As Fig. 1 and shown in Figure 2, one liquid crystal over silicon display panel 10 comprises that a glass substrate 12 (obscures for avoiding illustrated, Fig. 1 does not show glass substrate 12), a silicon substrate 14 parallel and relative with glass substrate 12, and a layer of liquid crystal molecule 18 is formed between glass substrate 12 and the silicon substrate 14.In addition, liquid crystal over silicon display panel 10 comprises that also an alignment films 16a is formed between glass substrate 12 and the layer of liquid crystal molecule 18, and one alignment films 16b be arranged between silicon substrate 14 and the layer of liquid crystal molecule 18, and alignment films 16a and 16b all are used for adjusting the orientation of the liquid crystal molecule in the layer of liquid crystal molecule 18.In addition; liquid crystal over silicon display panel 10 also comprises a sealant 20; be surrounded on layer of liquid crystal molecule 18 around; be used for bonding glass substrate 12 and silicon substrate 14; and; the sealant 20 silica ball (silica ball) that can mix usually is so that can keep a fixed range between glass substrate 12 and the silicon substrate 14.
Yet; the employed sealant material of industry usually can be along with temperature at present; the influence of time and other technological factors and having an effect with liquid crystal molecule; have a strong impact on the arrangement and the yawing moment of liquid crystal molecule and pollute; therefore; when applying identical voltage in layer of liquid crystal molecule 18; the yawing moment that is positioned near the liquid crystal molecule the sealant 20 can be different from the liquid crystal molecule of other position; thereby make near the image the sealant 20 show with other position inconsistent; cause liquid crystal over silicon display panel 10 to produce the phenomenon of irregular colour (mura), and reduce the display quality of liquid crystal over silicon display panel 10.Especially work as alignment films 16a and 16b by silicon dioxide (SiO
2) or silicon nitride (SiN
x) etc. inorganic material when constituting since between liquid crystal molecule and silicon dioxide or the silicon nitride to combine energy (anchoring energy) lower, so easier influence that is subjected to sealant 20 of the yawing moment of liquid crystal molecule.
In order to reduce liquid crystal over silicon display panel 10 produces irregular colour because of sealant 20 situation, known method normally increases the distance between sealant 20 and the active area 14a, yet will reduce the viewing area of liquid crystal over silicon display panel 10 like this, or can increase the die-size (die size) of liquid crystal over silicon display panel 10.Therefore, liquid crystal molecule how to avoid sealant 20 to pollute in the layer of liquid crystal molecule 18 effectively to improve the display quality of liquid crystal over silicon display panel 10, is one of present important topic.
Summary of the invention
The purpose of this invention is to provide a kind of liquid crystal over silicon display panel, to solve foregoing problems.
According to purpose of the present invention, the preferred embodiments of the present invention provide a kind of display panels, and it comprises one first substrate; One second substrate, it comprises an active area, is arranged at the central part of this second substrate; One sealant is arranged on this second substrate and is surrounded on this active area, is used for bonding this second substrate and this first substrate; One gap supporter (spacer wall) is arranged on this second substrate and between sealing agent and this active area; And a layer of liquid crystal molecule, be arranged between this first substrate, this second substrate and the sealing agent, wherein this gap supporter is used for avoiding the sealing agent to pollute this layer of liquid crystal molecule and supports this first substrate.
The invention provides a kind of display panels, it comprises: one first substrate; One second substrate, it comprises an active area; One sealant is arranged on this second substrate and is surrounded on this active area, is used for bonding this second substrate and this first substrate; One gap supporter is arranged on this second substrate and between sealing agent and this active area, wherein this gap supporter comprises that at least one liquid crystal injects opening and at least one gap back-up block, and wherein this gap back-up block is arranged at this liquid crystal injection opening; And a layer of liquid crystal molecule, be arranged between this first substrate, this second substrate and the sealing agent.
The invention provides also a kind of display panels, it comprises: one first substrate; One second substrate, it comprises an active area, a neighboring area outside this active area, and a thin layer that is arranged at this top, neighboring area; One sealant is arranged on this second substrate and is surrounded on this active area, is used for bonding this second substrate and this first substrate; One gap supporter is arranged on this second substrate and between sealing agent and this active area, and sealing agent and this gap supporter all are arranged in this neighboring area; And a layer of liquid crystal molecule, be arranged between this first substrate, this second substrate and the sealing agent.
The invention provides another display panels, it comprises: one first substrate; One second substrate, it comprises an active area, is arranged at the central part of this second substrate; One thin layer is arranged on this second substrate and is surrounded on outside this active area; One sealant is arranged on this thin layer, is used for bonding this second substrate and this first substrate; And a layer of liquid crystal molecule, be arranged between this first substrate, this second substrate and the sealing agent.
The invention provides another liquid crystal over silicon display panel, it comprises: one first substrate; One second substrate, it comprises an active area; One sealant is arranged on this second substrate and is surrounded on this active area, is used for bonding this second substrate and this first substrate; One gap supporter is arranged on this second substrate and between sealing agent and this active area; And a layer of liquid crystal molecule, be arranged between this first substrate, this second substrate and the sealing agent.
Because the present invention is provided with this gap supporter between sealing agent and this active area, thereby can avoid the sealing agent to pollute the interior liquid crystal molecule of this layer of liquid crystal molecule, and then can improve the display quality of this display panels.In addition, this gap supporter can be used for supporting this first substrate in addition, thereby can be omitted in the step of doping silica ball in the sealing agent.
Description of drawings
Fig. 1 is the vertical view of known liquid crystal over silicon display panel;
Fig. 2 is the cut-open view of liquid crystal over silicon display panel 2-2 ' along the line shown in Figure 1;
Fig. 3 and Fig. 5 to Fig. 7 are the vertical view of the liquid crystal over silicon display panel of first embodiment of the invention;
Fig. 4 is the cut-open view of liquid crystal over silicon display panel 4-4 ' along the line shown in Figure 3;
Fig. 8 is the vertical view of the liquid crystal over silicon display panel of second embodiment of the invention;
Fig. 9 is the cut-open view of liquid crystal over silicon display panel 9-9 ' along the line shown in Figure 8;
Figure 10 is the vertical view of the liquid crystal over silicon display panel of third embodiment of the invention;
Figure 11 is the cut-open view of liquid crystal over silicon display panel 11-11 ' along the line shown in Figure 10.
The referenced drawings mark
10 liquid crystal over silicon display panels, 12 glass substrate
14 silicon substrate 16a alignment films
20 sealants, 30 liquid crystal over silicon display panels
32 glass substrate, 34 silicon substrates
34a active area 34b neighboring area
38 layer of liquid crystal molecule, 40 sealants
Supporter 42a gap, 42 gap back-up block
44a liquid crystal injecting port 44b liquid crystal injecting port
46a opening 46b opening
48 anti-reflecting layer 50a alignment films
The 50b alignment films
Embodiment
Please refer to Fig. 3 to Fig. 7, Fig. 3 and Fig. 5 to Fig. 7 are the vertical view of the liquid crystal over silicon display panel of first embodiment of the invention, and Fig. 4 is the cut-open view of liquid crystal over silicon display panel 4-4 ' along the line shown in Figure 3.As shown in Figure 3 and Figure 4, a liquid crystal over silicon display panel 30 comprises a glass substrate 32 (not shown in Fig. 3), a silicon substrate 34 parallel and relative with glass substrate 32, and a layer of liquid crystal molecule 38 is formed between glass substrate 32 and the silicon substrate 34.In addition, liquid crystal over silicon display panel 30 comprises that also an alignment films 36a is formed between glass substrate 32 and the layer of liquid crystal molecule 38, and one alignment films 36b be arranged between silicon substrate 34 and the layer of liquid crystal molecule 38, be used for adjusting the orientation of the liquid crystal molecule in the layer of liquid crystal molecule 38.
On the other hand, as shown in Figure 3 and Figure 4, silicon substrate 34 comprises an active area 34a who is used for display frame, one is surrounded on the neighboring area 34b of active area 34a, an and sealant 40 that is arranged within the 34b of neighboring area, wherein, sealant 40 mainly is to be used for silicon substrate 34 is bonded on the glass substrate 32.It should be noted that, silicon substrate of the present invention 34 surfaces also comprise a gap supporter 42, it is arranged between active area 34a and the sealant 40, be used for completely cutting off sealant 40 and layer of liquid crystal molecule 38, with the liquid crystal molecule of avoiding sealant 40 to pollute in the layer of liquid crystal molecule 38, and then the display quality of raising liquid crystal over silicon display panel 30.In addition, because gap of the present invention supporter 42 can effectively completely cut off sealant 40 and layer of liquid crystal molecule 38, therefore present embodiment can dwindle the distance between sealant 40 and the active area 34a, with display area that enlarges active area 34a or the crystallite dimension of dwindling liquid crystal over silicon display panel 30.In addition, gap supporter 42 can also be used to support glass substrate 32, so that kept a fixed range between glass substrate 32 and the silicon substrate 34, thereby can be omitted in the step of doping silica ball in the sealant 40.
In a preferred embodiment of the invention, gap supporter 42 comprises inorganic material such as silicon dioxide or silicon nitride, and alignment films 36a and 36b then are silicon dioxide (SiO
2) or silicon nitride (SiN
x) etc. inorganic material, it can utilize chemical vapor deposition method and the ion beam of arranging in pairs or groups (ion bearm) to handle and form, or utilizes methods such as oblique sputter or oblique evaporation to be made.In addition, in other embodiments of the invention, alignment films 36a and 36b can be organic materials, and for example: (polyimide, PI) resin, gap supporter 42 then can be photo anti-corrosion agent materials to polyimide.
In addition, as shown in Figure 3, sealant 40 comprises two liquid crystal injecting port 44a and 44b, and gap supporter 42 also comprises two opening 46a and 46b, and the position of opening 46a and 46b corresponds respectively to liquid crystal injecting port 44a and 44b, irritates the carrying out of liquid crystal process with convenient one.Generally speaking, the filling liquid crystal process via liquid crystal injecting port 44a or 44b, pours into liquid crystal molecule between glass substrate 32 and the silicon substrate 34, to form layer of liquid crystal molecule 38.
On the other hand, as Fig. 5 and shown in Figure 6, gap supporter 42 also can comprise a plurality of gap back-up block 42a, be arranged at respectively near opening 46a and the 46b, and gap back-up block 42a is used for avoiding sealant 40 to diffuse in the active area 34a via opening 46a and 46b, thereby pollutes near the opening 46a liquid crystal molecule with 46b.Shape, quantity and the arrangement mode that must be noted that gap back-up block 42a can be according to technology or product needed and adjusted.In addition, as shown in Figure 7, if layer of liquid crystal molecule 38 utilize the liquid crystal drop following formula (one drop filling, ODF) method forms, then sealant 40 does not need liquid crystal injecting port, in the same manner, gap supporter 42 does not need opening yet.
In addition, liquid crystal over silicon display panel 30 shown in Figure 3 is not the unique embodiment of the present invention, below be other embodiments of the invention, and for convenience of description, the following description is represented components identical with identical mark.Please refer to Fig. 8 and Fig. 9, Fig. 8 is the vertical view of the liquid crystal over silicon display panel of second embodiment of the invention, and Fig. 9 is the cut-open view of liquid crystal over silicon display panel 9-9 ' along the line shown in Figure 8.As Fig. 8 and shown in Figure 9, silicon substrate 34 also comprises an anti-reflecting layer 48, and anti-reflecting layer 48 is arranged within the 34b of neighboring area, and between alignment films 36b and silicon substrate 34.In addition, anti-reflecting layer 48 is used for absorbing light, so that neighboring area 34b presents dark attitude, and anti-reflecting layer 48 can be a black mask (black matrix), for example black resin materials such as (resin).
Should be noted that, because mostly the liquid crystal molecule that polluted by sealant 40 is to be positioned at neighboring area 34b, therefore present embodiment utilizes anti-reflecting layer 48 to make neighboring area 34b present dark attitude, to guarantee that contaminated liquid crystal molecule can not be used to show image, and then can avoid liquid crystal over silicon display panel 30 to produce the phenomenon of irregular colour (mura), and improve the display quality of liquid crystal over silicon display panel 30.It should be noted that anti-reflecting layer 48 also can be arranged between sealant 40 and the alignment films 36b, or be arranged on the glass substrate 32.And in the second embodiment of the present invention, the structure of gap supporter 42 can be that Fig. 3 and Fig. 5 are to any structure shown in Figure 7.Must be noted that the second embodiment of the present invention also can omit the making of gap supporter 42.
Please refer to Figure 10 and Figure 11, Figure 10 is the vertical view of the liquid crystal over silicon display panel of third embodiment of the invention, and Figure 11 is the cut-open view of liquid crystal over silicon display panel 11-11 ' along the line shown in Figure 10.With respect to the first embodiment of the present invention, the silicon substrate 34 of the third embodiment of the present invention also comprises an alignment films 50b, and alignment films 50b is arranged within the 34b of neighboring area, and is arranged between sealant 40 and the alignment films 36b.In addition, as shown in figure 11, glass substrate 32 also comprises an alignment films 50a, it is covered on the alignment films 36a, and the position of alignment films 50a corresponds to alignment films 50b, and the alignment films that alignment films 50a and 50b are vertical orientated (vertical alignment), it can utilize letterpress (APR) or ink-jet method (ink jet printer) to make.
Must be noted that major axis that alignment films 50a and 50b be used for making liquid crystal molecule perpendicular to silicon substrate 34 and glass substrate 32, that is to say that the liquid crystal molecule in the 34b of neighboring area vertically is arranged between silicon substrate 34 and the glass substrate 32.Generally speaking, after light passes through the liquid crystal molecule of homeotropic alignment, its polarised direction (polarization) can't change, therefore if the mutually perpendicular two Polarizer (not shown) of liquid crystal over silicon display panel 30 collocation polarity just can make neighboring area 34b present dark attitude.As previously mentioned, because mostly the liquid crystal molecule that polluted by sealant 40 is to be positioned at neighboring area 34b, and present embodiment utilizes alignment films 50a and 50b to make neighboring area 34b present dark attitude, to guarantee that contaminated liquid crystal molecule can not be used to show image, and then can avoid liquid crystal over silicon display panel 30 to produce the phenomenon of irregular colour (mura), and improve the display quality of liquid crystal over silicon display panel 30.And, in the third embodiment of the present invention, the structure of gap supporter 42 can be Fig. 3 and Fig. 5 to any structure shown in Figure 7, on the other hand, the third embodiment of the present invention also can be omitted the making of gap supporter 42.
In addition because of the present invention second, make neighboring area 34b present dark attitude with the 3rd embodiment, therefore, of the present invention second, must not apply the liquid crystal molecule of high pressure in the 34b of neighboring area with the 3rd embodiment.And silicon substrate 34 of the present invention also can utilize glass substrate, plastic cement substrate or other transparent materials to replace, and perhaps glass substrate 32 also can utilize the substrate of plastic cement substrate or any transparent material to replace, and is applied to the display panels of other kinds.
With respect to known technology, the present invention is provided with a gap supporter 42 between sealant 40 and layer of liquid crystal molecule 38, with the liquid crystal molecule of avoiding sealant 40 to pollute in the layer of liquid crystal molecule 38, and then the display quality of raising liquid crystal over silicon display panel 30.In addition, gap supporter 42 can also be used to support glass substrate 32, thereby can be omitted in the step of doping silica ball in the sealant 40.On the other hand, the present invention can also be provided with anti-reflecting layer 48 or alignment films 50a, 50b at neighboring area 34b, so that neighboring area 34b presents dark attitude, and guarantee that contaminated liquid crystal molecule can not be used to show image, and then can avoid liquid crystal over silicon display panel 30 to produce the phenomenon of irregular colour (mura), and improve the display quality of liquid crystal over silicon display panel 30.
The above only is the preferred embodiments of the present invention, and all equal variation and modifications of doing according to claim of the present invention all should belong to the scope that the present invention is contained.
Claims (6)
1. display panels, it comprises:
One first substrate;
One second substrate, it comprises an active area;
One sealant is arranged on this second substrate and is surrounded on this active area, is used for bonding this second substrate and this first substrate;
One gap supporter is arranged on this second substrate and between sealing agent and this active area, wherein this gap supporter comprises that at least one liquid crystal injects opening and at least one gap back-up block, and wherein this gap back-up block is arranged at this liquid crystal injection opening; And
One layer of liquid crystal molecule is arranged between this first substrate, this second substrate and the sealing agent.
2. display panels as claimed in claim 1, wherein this second substrate also comprises a neighboring area outside this active area, an and thin layer that is arranged at top, this neighboring area, and sealing agent and this gap supporter all are arranged in this neighboring area, and wherein this thin layer is an anti-reflecting layer.
3. display panels as claimed in claim 1, wherein this second substrate also comprises a neighboring area outside this active area, an and thin layer that is arranged at top, this neighboring area, and sealing agent and this gap supporter all are arranged in this neighboring area, wherein this thin layer is that one first alignment films and this display panels also comprise one second alignment films, be arranged on this first substrate with respect to this first alignment films, and this first, and this second alignment films be vertical orientated alignment films.
4. display panels as claimed in claim 1 also comprises the second gap back-up block with described gap back-up block laid parallel.
5. display panels, it comprises:
One first substrate;
One second substrate, it comprises an active area, a neighboring area outside this active area, and a thin layer that is arranged at this top, neighboring area;
One sealant is arranged on this second substrate and is surrounded on this active area, is used for bonding this second substrate and this first substrate;
One gap supporter is arranged on this second substrate and between sealing agent and this active area, and sealing agent and this gap supporter all are arranged in this neighboring area; And
One layer of liquid crystal molecule, be arranged between this first substrate, this second substrate and the sealing agent, wherein this thin layer is an anti-reflecting layer or one first vertical alignment layer, when this thin layer is first vertical alignment layer, on this first substrate, also be provided with second vertical alignment layer with respect to this first alignment films.
6. display panels as claimed in claim 5, wherein this gap supporter comprises that at least one liquid crystal injects opening, is used for carrying out one and irritates liquid crystal process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101026674A CN100368898C (en) | 2003-10-28 | 2003-10-28 | Liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101026674A CN100368898C (en) | 2003-10-28 | 2003-10-28 | Liquid crystal display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1612006A CN1612006A (en) | 2005-05-04 |
| CN100368898C true CN100368898C (en) | 2008-02-13 |
Family
ID=34756434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101026674A Expired - Fee Related CN100368898C (en) | 2003-10-28 | 2003-10-28 | Liquid crystal display panel |
Country Status (1)
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| CN (1) | CN100368898C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015125245A (en) * | 2013-12-26 | 2015-07-06 | シナプティクス・ディスプレイ・デバイス合同会社 | Liquid crystal display device, liquid crystal driver, and drive method of the liquid crystal display panel |
| TWI553374B (en) * | 2015-01-07 | 2016-10-11 | 友達光電股份有限公司 | Liquid crystal panel and manufacturing method thereof |
| CN105607352A (en) * | 2016-01-04 | 2016-05-25 | 京东方科技集团股份有限公司 | Display panel and displayer |
| CN106054465A (en) * | 2016-05-27 | 2016-10-26 | 厦门天马微电子有限公司 | Display panel |
| CN107490893A (en) * | 2017-09-27 | 2017-12-19 | 武汉华星光电技术有限公司 | A kind of color membrane substrates and preparation method thereof and liquid crystal display panel |
| CN110727148A (en) * | 2019-10-24 | 2020-01-24 | 深圳慧新辰技术有限公司 | Liquid crystal chip packaging structure, method, projection display and projection display system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5890617A (en) * | 1981-11-25 | 1983-05-30 | Citizen Watch Co Ltd | Manufacture of liquid-crystal display device |
| GB2183073A (en) * | 1985-11-15 | 1987-05-28 | Philips Electronic Associated | Liquid crystal display device |
| JPH06175140A (en) * | 1992-12-09 | 1994-06-24 | Toshiba Corp | Liquid crystal display element and its production |
| JP2000258784A (en) * | 1999-03-10 | 2000-09-22 | Toshiba Corp | Liquid crystal display element |
-
2003
- 2003-10-28 CN CNB2003101026674A patent/CN100368898C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5890617A (en) * | 1981-11-25 | 1983-05-30 | Citizen Watch Co Ltd | Manufacture of liquid-crystal display device |
| GB2183073A (en) * | 1985-11-15 | 1987-05-28 | Philips Electronic Associated | Liquid crystal display device |
| JPH06175140A (en) * | 1992-12-09 | 1994-06-24 | Toshiba Corp | Liquid crystal display element and its production |
| JP2000258784A (en) * | 1999-03-10 | 2000-09-22 | Toshiba Corp | Liquid crystal display element |
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| CN1612006A (en) | 2005-05-04 |
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