CN101055381A - Liquid crystal display with interval - Google Patents
Liquid crystal display with interval Download PDFInfo
- Publication number
- CN101055381A CN101055381A CN 200610074688 CN200610074688A CN101055381A CN 101055381 A CN101055381 A CN 101055381A CN 200610074688 CN200610074688 CN 200610074688 CN 200610074688 A CN200610074688 A CN 200610074688A CN 101055381 A CN101055381 A CN 101055381A
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- sept
- lcd
- liquid crystal
- enclosure wall
- shaped element
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Abstract
The invention relates to a construction for the LCD interval which comprises a column element and a bounding wall element surrounding the column element. The column element contacting the transistor metal of a thin film transistor plaque and the bounding wall element are kept a distance with each other. The interval is formed in the black array area of a color light-filtrating plaque. When the temperature is changed, the space can provide the adjustment for the volume variety value of the liquid crystal. When the voltage is indicated, the transverse relative displacement of the two basal plate can be avoided by inter-strangulating the bounding wall element and the metal framework.
Description
Technical field
The sept of the relevant a kind of LCD of the present invention, the particularly relevant sept that uses the LCD of the formula injection method that drips.
Background technology
LCD is constituted by being full of liquid crystal between a colored optical filtering substrates, thin film transistor base plate and two substrates, LCD at large-size is the gap of keeping two substrates, a distributive plural sept keeps two substrates parallel to keep clearance height in liquid crystal layer, in addition at the liquid crystal injection method based on the liquid crystal vacuum impregnation, but injection length is consuming time, (One Drop Fill ODF) replaces, and needs Renewal Design for the structure of sept with the injection method that drips gradually at present.
Be distributed between liquid crystal layer with the ball-type sept in prior art, this kind structure is when substrate is under pressure, because of rolling, sept destroys substrate, or be positioned at the uneven distribution of pixel region generation because distribute arbitrarily, more influence the product yield because of the scattering problem of sept, in recent years with little shadow technology form sept (PhotoSpacer, PS), position, the size of accurate control interval thing and highly replace the structure of traditional ball-type sept.
Please refer to the structure that Fig. 1 is a sept 300, be disclosed in Jap.P. and openly specially permit the communique spy and open among the 2004-191841, by in the middle of the enclosure wall element 310 and keep a space 320 and constituted.Fig. 2 illustrates that existing sept 300 places one to comprise colored filter substrate (Color Filter substrate, CF substrate) 100 and comprise diagrammatic cross-section between the thin film transistor base plate (Thin Film Translator substrate, TFT substrate) 200.When utilizing vacuum impregnation, abolish vacuum behind the liquid crystal 800 that sucks but the space 320 of sept 300 keeps vacuum and adsorbs two substrates 100,200, and keep the spacing of two substrates 100,200, the anchorage force of this hollow structure is relatively poor, if PS pressure produces umbilicate phenomenon than senior general, and at present since the injection method that drips to replace this design of vacuum impregnation gradually no longer suitable gradually.
Moreover Jap.P. is openly speciallyyed permit the communique spy and is opened 2003-084289, utilizes the different height of sept, in case substrate pressurized or at low temperatures, can be by the function of PS elastic compression and increase the compression area ability.
The design of other existing septs is applied to the injection method that drips, relatively liquid crystal spatial reduction and cause liquid crystal process window (window process) deficiency, and because of the expansion coefficient difference of sept and liquid crystal, the temperature after group is upright easily causes the phenomenon of liquid crystal gassing when descending.
Therefore, has an important topic that is designed to promote the LCD design of regulating the liquid crystal function, avoiding relative transversal displacement of two substrates and minimizing aeration demonstration usefulness.
Summary of the invention
For solving the above problems, a kind of sept, it has a hollow space can ccontaining liquid crystal, has the function of regulating liquid crystal, and promptly when two substrates were stressed, the sept space was the notification area adjustable liquid crystal that links to each other with the liquid crystal of pixel region.
Moreover for fear of the horizontal relative displacement of two substrates, a kind of display panels utilizes the sept with center and enclosure wall element design, when display panels bears ambient pressure, utilizes the enclosure wall element to restrain two level of base plate displacements.
Moreover, take place in order to reduce bubble, a kind of display panels, sept is arranged at black matrix", and (black matrix BM) on the position, can lower the probability that bubble takes place at low temperature.
According to above-mentioned, one embodiment of the invention provide a sept, have the structure that a shaped element, the enclosure wall element that surrounds shaped element and shaped element and enclosure wall interelement keep a sept space.Its position can utilize little shadow technology to be formed at the black matrix" district (BM) of colored optical filtering substrates, one end of shaped element and the metal construction adjacency of thin film transistor base plate avoid bubble to take place to avoid the horizontal relative displacement of two substrates with utilizing shaped element and enclosure wall element to restrain two substrates so as to adjusting liquid crystal.
Description of drawings
Fig. 1 is the sept stereographic map of prior art;
Fig. 2 is the sept cut-open view of the LCD of prior art;
Fig. 3 is the sept stereographic map of one embodiment of the invention;
Fig. 4 is the sept stereographic map of another embodiment of the present invention;
Fig. 5 is the sept cut-open view of the LCD of one embodiment of the invention;
Fig. 6 A, 6B and 6C are the sept cut-open views of the LCD of one embodiment of the invention under different temperatures;
Fig. 7 is the sept cut-open view of the LCD of conventional art.
Embodiment
Mode illustrates embodiments of the invention below with reference to accompanying drawings, describes content of the present invention and embodiment in detail.
Fig. 3 is the stereographic map of an embodiment of sept of the present invention, and sept 700a comprises a shaped element 730a and an enclosure wall element 710a, keeps a sept space 720a between shaped element 730a and enclosure wall element 710a.Sept 700a is used to keep the gap of two parallel glass substrates, and shaped element 730a is in order to support the distance of two parallel substrates.The geometric configuration that is noted that shaped element 730a and enclosure wall element 710a is also unrestricted, makes with existing technology as long as be convenient to.Secondly, the height of shaped element 730a and enclosure wall element 710a can be identical, or cylinder enclosure wall element 710a is a little more than shaped element 730a.Moreover shaped element 730a and enclosure wall element 710a can be identical materials, and material that can also be different forms.Fig. 4 is another embodiment of sept, keep identical structure but different geometric configuratioies, comprise the retaining space 720b of a square column element 730b, square tube enclosure wall element 710b and shaped element 730b and enclosure wall element 710b as the sept 700b in the enforcement illustration.
Please refer to Fig. 5, this figure illustrates the tectonic profile synoptic diagram of single sept and colored optical filtering substrates and thin film transistor base plate, upper substrate is a colored optical filtering substrates 500 among the figure, and lower substrate is a thin film transistor base plate 600, and interlayer is to be full of liquid crystal in the liquid crystal layer 800.Colored optical filtering substrates 500 belows form a sept 700 in the liquid crystal layer 800, be the cartridge type enclosure wall element 710 of a shaped element 730, encirclement shaped element 730 in the middle of the sept 700,710 of shaped element 730 and enclosure wall elements have a sept space 720 and constitute.The metal construction 610 of shaped element 730 belows on the thin film transistor base plate 600, the sectional area of shaped element 730 is less than metal construction 610, and the sectional area ratio metal construction 610 of enclosure wall element 710 inside is big.
Shaped element 730 is taken away heat because of the coefficient of heat conductivity high energy of metal fast because of being adjacent to metal construction 610, makes the reaction of 730 pairs of temperature variation of shaped element quick and sensitive than enclosure wall element 710.On the other hand, 710 of enclosure wall elements do not contact with thin film transistor base plate 600, and tool is regulated the function of liquid crystal, and enclosure wall element 710 inner section are bigger than metal construction 610, in case be under pressure and 610 mutual strangulations of metal construction, avoid the relative displacement of the generation horizontal direction of two substrates.
Now illustrate in substrate the be under pressure variation and the function thereof of sept 700 structures, when above panel, applying loading, shaped element 730 compression enclosure wall elements 710 contact with thin film transistor base plate 600 compression area are increased and the withstand voltage ability of increase panel, enclosure wall element 710 is limited to the metal construction horizontal direction on the thin film transistor base plate 600 in addition, avoid the abnormal show district to be exposed at outside the black matrix", thereby alleviate the generation of finger pressure light leak.
The effect of this structure when then temperature variation being described please refer to Fig. 6 A to Fig. 6 C, and this series of drawing is the diagrammatic cross-section that the structure of an embodiment under different temperatures changes, and along with temperature variation, is described as follows:
With reference to figure 6A is organigram under the room temperature, go up and to be colored optical filtering substrates 500, be thin film transistor base plate 600 down, in be full of liquid crystal for liquid crystal layer 800,840 belows, the black matrix" of colored optical filtering substrates 500 (BM) district form sept 700, and the centre is a pixel region 830.The other end of shaped element 730 in abutting connection with and be contacted with on the metal construction 610 of thin film transistor base plate 600, the enclosure wall element 710 of sept surrounds shaped element 730 and its other end does not contact with thin film transistor base plate 600, and 730 of enclosure wall element 710 and shaped elements keep a sept space 720.In legend, the liquid crystal height 810 of pixel region 830 is contour with the liquid crystal height 850 in the zone in sept space 720, all is full of liquid crystal.But when temperature descends because of volume-diminished, the liquid crystal height of zones of different will produce relatively and change, be the liquid crystal height 850 in the liquid crystal height 810 of pixel region 830 and sept space 720 and inequality, phenomenon when below the explanation temperature reduces and the variation and the function of this structure.
With reference to figure 6B, shrink substrate and be subjected to atmospheric pressure and be out of shape when temperature reduces liquid crystal, pixel region 830 is because of the indent that is stressed, BM district 840 is out of shape because of the support that sept 700 is arranged and reduces, be bent downwardly as the colored optical filtering substrates in the legend 500, and thin film transistor base plate 600 is bent upwards, and in the BM district because of the support of sept is arranged, highly almost constant.730 pairs of temperature variation of shaped element are comparatively sensitive and quick, so temperature is reduced and contraction immediately.It is slower that 710 pairs of temperature of enclosure wall element reduce reaction, one end is fixed on colored optical filtering substrates 500, the other end not with thin film transistor base plate 600 adjacency, but be lower than the height of the metal construction 610 of thin film transistor base plate 600, liquid crystal still can be at pixel region 830 and sept space 720 area cirulatings.The liquid crystal height of two substrates in zones of different because of the different height of distortion tool, liquid crystal height 850 reductions that BM district 840 liquid crystal shrink because of sept space 720 produce a liquid crystal exhaustion region at two substrate gaps, pixel region 830 pushes liquid crystal in the zone in sept space 720 because of the distortion that is under pressure, make liquid crystal still be full of pixel region 830 and sept space 720, be appreciated that the liquid crystal height (h2 in legend) 850 of liquid crystal height (h1 in the legend) 810 of pixel region 830 less than space 720 parts of sept 700.
With reference to figure 6C, when temperature continue to reduce, enclosure wall element 710 and thin film transistor base plate 600 in abutting connection with and closed, the liquid crystal in pixel region 830 and sept space 720 is isolated and no longer circulation, but liquid crystal still is full of the zone in pixel region 830 and sept space 720.Assumed temperature continues to descend, because the regulatory function of sept 700 stops, produce a liquid crystal exhaustion region at pixel region, meaning promptly produces bubble, this exhaustion region height (Δ h1 in the legend) 820, this exhaustion region height (Δ h1) 820 are the poor of two substrate gap height of pixel region and liquid crystal height (h1) 810.The exhaustion region height of the liquid crystal in BM district 840 (Δ h2 in the legend) 860, it is the difference in height of the liquid crystal height 850 in two substrate gap height and sept space 720, be appreciated that, when temperature reduces, the volume of the liquid crystal in sept space 720 changes obviously than the liquid crystal of pixel region 830, the liquid crystal exhaustion region height 860 that is BM district 840 is big than the liquid crystal exhaustion region height 820 of pixel region 830, explanation is 840 first gassings in the BM district, and pixel region 830 backs take place, meaning makes bubble concentrate on BM district 840 promptly because of the adjusting in sept space 720.
Please refer to Fig. 7, this figure is the sept tectonic profile synoptic diagram of traditional sept design, the liquid crystal height 410 of pixel region among the figure, liquid crystal exhaustion region height 420, both sides are existing sept 300, and existing sept is because of the design of no enclosure wall, the Δ H that is caused when temperature descends, can be bigger than the design's Δ h1, thereby do not have the function of regulating liquid crystal.
The present invention has the significant design problem that following function overcomes LCD:
1. simplicity of design keeps a sept space by a shaped element, the enclosure wall element that surrounds this shaped element and shaped element and enclosure wall interelement and is constituted.
2. have a liquid crystal regulatory function, the metal construction outshot that utilizes thin film transistor base plate and the shaped element of sept in abutting connection with and the enclosure wall element does not contact with thin film transistor base plate, and tool liquid crystal regulatory function.
3. avoid the horizontal relative displacement of two substrates, utilize the metal construction outshot of thin film transistor (TFT) and the enclosure wall element of sept when substrate is stressed, to restrain mutually.
4. when temperature reduces bubble is concentrated on BM district, liquid crystal adjusting spatial concentration is in the space of sept, promptly all under the BM district, avoids bubble to occur in pixel region.
But the above only is preferred embodiment of the present invention, when not limiting the scope of the invention with it.Be the variation and the modification of all equivalences of being done according to the present patent application claim scope, will do not lose main idea of the present invention place, also without departing from the spirit or scope of the invention, the former capital should be considered as further enforcement situation of the present invention.
Claims (12)
1. the sept of a LCD is arranged between two substrates, and this sept comprises:
One shaped element, this shaped element is connected with this two substrate; And
One enclosure wall element, it surrounds this shaped element, form a space between this enclosure wall element and this shaped element, and this enclosure wall element is connected with this two substrates one.
2. the sept of LCD as claimed in claim 1 is characterized in that this shaped element and this enclosure wall element are to form with a same material.
3. the sept of LCD as claimed in claim 1 is characterized in that this shaped element and this enclosure wall element are to form with a different materials.
4. the sept of LCD as claimed in claim 1 is characterized in that being uneven in length in this enclosure wall element of this shaped element.
5. the sept of LCD as claimed in claim 1 is characterized in that the length of this shaped element equals this enclosure wall element.
6. the sept of LCD as claimed in claim 1 is characterized in that this two substrate is a colored optical filtering substrates and a thin film transistor base plate.
7. the sept of LCD as claimed in claim 6 is characterized in that this colored optical filtering substrates also comprises a black matrix".
8. the sept of LCD as claimed in claim 7 is characterized in that this sept places on this black matrix".
9. the sept of LCD as claimed in claim 1, it is characterized in that this shaped element be cylindric or flat column one of them.
10. the sept of LCD as claimed in claim 1, it is characterized in that this enclosure wall element be cylindric or the square tube shape one of them.
11. the sept of LCD as claimed in claim 1 is characterized in that this shaped element is not more than the sectional area in this space.
12. the sept of LCD as claimed in claim 1 is characterized in that this LCD is a liquid crystal drop down liquid crystal display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100746883A CN100557489C (en) | 2006-04-12 | 2006-04-12 | LCD with sept |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100746883A CN100557489C (en) | 2006-04-12 | 2006-04-12 | LCD with sept |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101055381A true CN101055381A (en) | 2007-10-17 |
| CN100557489C CN100557489C (en) | 2009-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100746883A Expired - Fee Related CN100557489C (en) | 2006-04-12 | 2006-04-12 | LCD with sept |
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| Country | Link |
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| CN (1) | CN100557489C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706622B (en) * | 2008-10-08 | 2012-07-04 | 深超光电（深圳）有限公司 | Film transistor liquid crystal display structure and manufacture method thereof |
| CN102566108A (en) * | 2010-12-20 | 2012-07-11 | 上海天马微电子有限公司 | Liquid crystal display device |
| CN103076700A (en) * | 2013-02-18 | 2013-05-01 | 合肥京东方光电科技有限公司 | Liquid crystal panel and display device |
| CN104516158A (en) * | 2015-01-23 | 2015-04-15 | 合肥京东方光电科技有限公司 | Design method and display device of spacer |
| CN107807478A (en) * | 2017-11-15 | 2018-03-16 | 深圳市华星光电技术有限公司 | Structure of liquid crystal display panel and LCD board manufacturing method |
-
2006
- 2006-04-12 CN CNB2006100746883A patent/CN100557489C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101706622B (en) * | 2008-10-08 | 2012-07-04 | 深超光电（深圳）有限公司 | Film transistor liquid crystal display structure and manufacture method thereof |
| CN102566108A (en) * | 2010-12-20 | 2012-07-11 | 上海天马微电子有限公司 | Liquid crystal display device |
| CN102566108B (en) * | 2010-12-20 | 2015-03-18 | 上海天马微电子有限公司 | Liquid crystal display device |
| CN103076700A (en) * | 2013-02-18 | 2013-05-01 | 合肥京东方光电科技有限公司 | Liquid crystal panel and display device |
| CN103076700B (en) * | 2013-02-18 | 2015-11-25 | 合肥京东方光电科技有限公司 | Liquid crystal panel and display device |
| CN104516158A (en) * | 2015-01-23 | 2015-04-15 | 合肥京东方光电科技有限公司 | Design method and display device of spacer |
| CN107807478A (en) * | 2017-11-15 | 2018-03-16 | 深圳市华星光电技术有限公司 | Structure of liquid crystal display panel and LCD board manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100557489C (en) | 2009-11-04 |
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Granted publication date: 20091104 Termination date: 20200412 |