CN1129107C - Plasma display - Google Patents
Plasma display Download PDFInfo
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- CN1129107C CN1129107C CN00118466A CN00118466A CN1129107C CN 1129107 C CN1129107 C CN 1129107C CN 00118466 A CN00118466 A CN 00118466A CN 00118466 A CN00118466 A CN 00118466A CN 1129107 C CN1129107 C CN 1129107C
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- pixel cell
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Abstract
The present invention relates to a plasma display which comprises a back plate, a front plate, a plurality of electrode pairs, a plurality of blocking walls and a light shielding layer, wherein each electrode pair comprises a first electrode and a second electrode, and the first electrode and the second electrode are equidistantly arranged at the lower side of the front plate in parallel along a first direction. The blocking wall at least comprises a first blocking wall, a second blocking wall and a third blocking wall, wherein the first blocking wall, the second blocking wall and the third blocking wall are arranged at the upper side of the back plate in parallel along a second direction. A meeting position of the first blocking wall and the second blocking wall and the electrode pair forms a primary pixel unit, and a meeting position of the second blocking wall and the third blocking wall and the electrode pair forms a secondary pixel unit. The light shielding layer is arranged on the partial surface of the front plate, and the light transmittance of the primary pixel unit is higher than that of the secondary pixel unit.
Description
Technical field
(plasma display panel PDP), particularly relates to a kind of plasma display that utilizes transmittance to control the pixel cell colour temperature to the present invention relates to a kind of plasma display.
Background technology
Plasma display is applied to large scale and large-area display device gradually, plasma display be by the electrode drive plasma (be ionized gas; Plasma) produce ultraviolet light, be radiated on the phosphor body, make phosphor body send visible light.
See also Fig. 1.Fig. 1 is the synoptic diagram of existing plasma display 10.Existing plasma display 10 includes a housing (not shown), a back plate 12, and a header board 14 is installed on the plate 12 of back abreast.Header board 14 is a transparent plate body.
The downside of header board 14 is provided with a plurality of electrode pairs (electrode pair) 16; each electrode pair 16 includes two strip electrodes 18; one dielectric layer 20 is located at the downside of header board 14 and coated electrode to 16; with guard electrode to 16; one protective seam 22 is located at the downside of dielectric layer 20, is used for protecting dielectric layer 20 not to be subjected to plasma sputtering and causes deterioration.Protective seam 22 is made of magnesium oxide (MgO) usually.Back plate 12 is provided with a plurality of barrier ribs (rib) 24, and a plurality of information electrodes (data electrode) 26 is between barrier rib 24, and blueness, redness and green fluorescent body (phosphor) 30B, 30R, 30G insert between the barrier rib 24 in order.Be filled with ionized gas between the per two adjacent barrier ribs 24.The downside of protective seam 22 is fixed on the top of a plurality of barrier ribs 24, is used for intercepting usefulness and isolated, so that the plasma on barrier rib 24 both sides can't circulate mutually.
Each electrode 18 comprises keeps electrode (sustain electrode) 36 and one auxiliary electrode 38.Keep electrode 36 and be a broad and near transparent conductor, usually by tin indium oxide (indium tin oxide, ITO) made, be used for causing and keeping discharge.Auxiliary electrode 38 is a thinner and opaque plain conductor, and is made by chromium one bronze medal one chromium three-layer metal usually, is used for assisting keeping electrode 36 initiation discharges, and reduces the resistance of electrode 18.
As shown in Figure 1, per two barrier ribs 24 form a pixel cell (sub pixel unit) 32B, 32R or 32G with the confluce (intersection) of electrode pair 16.Three times pixel cell 32B, 32R, 32G form a pixel cell (pixel unit) 34.When apply a voltage in inferior pixel cell 32B, 32R, 32G two electrodes 18 and information electrode 26 between the time, can form an electric field between two electrodes 18 and the information electrode 26, cause the ultraviolet ray of ionized gas discharge generation, and irradiation phosphor body 30B, 30R or 30G and luminous.The reason of influence time pixel cell 32B, 32R, 32G luminescence efficiency has a lot, as ionized gas, the kind of electrode and the luminescence efficiency of phosphor body etc. of filling.
When generally designing plasma display, can wish that the luminescence efficiency of each time pixel cell 32R, 32G, 32B is close,, make picture more distinct to improve the colour temperature that whole plasma display is presented.Yet with existing phosphor body material, luminescence efficiency the best of red phosphor body 30R, green fluorescent body 30G takes second place, and 30B is the poorest for the blue-fluorescence body.Thus, under the identical situation of other conditions, the brightness of of all kinds pixel cell 32B, 32R, 32G promptly can produce uneven situation, and the colour temperature that whole plasma display presented also thereby can't improve.
See also Fig. 2.Fig. 2 is the synoptic diagram of existing another plasma display 40.Another kind of existing plasma display 40 is promptly addressing the above problem.The main difference part of plasma display 40 and plasma display 10 is the spacing of barrier rib 44.The barrier rib 24 of plasma display 10 is equidistantly arranged, but 44 right and wrong of the barrier rib of plasma display 40 are equidistantly arranged.The barrier rib spacing that covers blue-fluorescence body 30B is the wideest, and the barrier rib spacing that covers green fluorescent body 30G is taken second place, and covers the barrier rib spacing minimum of red phosphor body 30R.The barrier rib spacing is big more, mean can be luminous phosphor body many more, so to adjust the different situation of phosphor body luminescence efficiency of all kinds, make the brightness of of all kinds pixel cell 32B, 32R, 32G even, reach the purpose that improves colour temperature.
Yet, because barrier rib 44 spacings of plasma display 40 differ, so the ratio that the barrier rib 44 of part must be done distance between the barrier rib 24 of the plasma display under the same resolution 10 is little, mean that so making degree of accuracy must improve, to produce the less barrier rib of spacing 44.Generally speaking, the barrier rib spacing that covers blue-fluorescence body 30B must be bigger more than 20% than green 30G and red 30R, just has the effect that more obviously improves colour temperature, and in today that resolution requirement day is advanced, this kind settling mode can increase the degree of difficulty in the manufacturing.
Summary of the invention
The object of the present invention is to provide a kind of plasma display that utilizes light transmission capacity to control the pixel cell colour temperature, each of its same pixel cell time pixel cell has different light transmission capacities, to improve the colour temperature that different colours light is presented when synthetic.
The object of the present invention is achieved like this, and a kind of plasma display promptly is provided, and it includes: a back plate; One header board, this header board are arranged on this back plate abreast; One electrode pair, this electrode pair comprise one first electrode and one second electrode, and this first electrode and this second electrode are located at the downside of this header board along a first direction; A plurality of barrier ribs (rib), these a plurality of barrier ribs comprise one first barrier rib at least, one second barrier rib, one the 3rd barrier rib, be located at the upside of this back plate in regular turn abreast along a second direction, this second direction and this first direction near normal, this first barrier rib, second barrier rib and this electrode pair confluce formation one is pixel cell (sub pixel unit) for the first time, and this second barrier rib, the 3rd barrier rib and this electrode pair confluce formation one is pixel cell for the second time; And a light shield layer, be arranged on the right part surface of this front plate electrodes, in order to cover a part desire to penetrate this first time pixel cell with the light of pixel cell for the second time; Wherein for the first time the area of this light shield layer is less than this area of this light shield layer in pixel cell for the second time in the pixel cell, and the transmittance that makes this of pixel cell greater than the transmittance of this of pixel cell first time second time.
The present invention also comprises a kind of plasma display, and it includes: a back plate; One header board, this header board are arranged on this back plate abreast; One electrode pair (electrode pair), this electrode pair comprise one first electrode and one second electrode, and this first electrode and this second electrode are located at the downside of this header board along a first direction; And a plurality of barrier ribs (rib), these a plurality of barrier ribs comprise one first barrier rib at least, one second barrier rib, one the 3rd barrier rib, be located at the upside of this back plate in regular turn abreast along a second direction, this second direction and this first direction near normal, this first barrier rib, second barrier rib and this electrode pair confluce (intersection) formation one is pixel cell (sub pixel unit) for the first time, and this second barrier rib, the 3rd barrier rib and this electrode pair confluce formation one is pixel cell for the second time; But wherein this first electrode elimination part to penetrate this first time pixel cell and this second time pixel cell light, this first time pixel cell first electrode on have one first hole, this, first electrode of pixel cell had one second hole second time, this first hole is greater than this second hole, and the transmittance that makes this of pixel cell greater than the transmittance of this of pixel cell first time second time.
Description of drawings
Below in conjunction with accompanying drawing, describe embodiments of the invention in detail, wherein:
Fig. 1 is the synoptic diagram of existing plasma display;
Fig. 2 is the synoptic diagram of existing another plasma display;
Fig. 3 is the synoptic diagram of first embodiment of the invention plasma display;
Fig. 4 is the top view of the pixel cell of plasma display shown in Figure 3;
Fig. 5 is the pixel cell top view of second embodiment of the invention plasma display;
Fig. 6 is the pixel cell top view of third embodiment of the invention plasma display.
Embodiment
Please refer to Fig. 3.Fig. 3 is the synoptic diagram of first embodiment of the invention plasma display 50.Plasma display 50 of the present invention comprises a back plate 52, and a header board 54 is arranged at the upside of back plate 52.Header board 54 is a transparent plate body and parallel with back plate 52.
As shown in Figure 3; header board 54 is provided with a plurality of electrode pairs (electrode pair) 56 and is positioned at the downside of header board 54; one dielectric layer 58 is positioned at the downside of header board 54 and coated electrode to 56; be used for guard electrode to 56; and one protective seam 60 be positioned at the downside of dielectric layer 58, be used for protecting dielectric layer 58 not to be subjected to isoionic sputter and cause deterioration.Each electrode pair 56 includes one first electrode 62 and one second electrode 63, is located at the downside of header board 54 abreast along a first direction X.First electrode 62 and second electrode 63 comprise keeps electrode (transparent electrode) 64, usually by tin indium oxide (indium tinoxide, ITO) made, be used for causing discharge.
As shown in Figure 3, confluce (intersection) formation one of first barrier rib 68, second barrier rib 69 and electrode pair 56 is pixel cell (sub pixel unit) 76B for the first time, the confluce formation one of second barrier rib 69, the 3rd barrier rib 70 and electrode pair 56 is pixel cell 76R for the second time, and the confluce formation one of the 3rd barrier rib 70, the 4th barrier rib 71 and electrode pair 56 is pixel cell 76G for the third time.First, second and pixel cell 76B, 76R, 76G form a pixel cell (pixel unit) 78 for the third time. Inferior pixel cell 76B, 76R, 76G and pixel cell 78 refer to the zone that dotted line shown in Figure 3 below is included.Be coated with phosphor body 74B, 74R, 74G respectively in first, second and third pixel cell 76B, 76R, the 76G, therefore first, second and third pixel cell 76B, 76R, 76G can show indigo plant, red, green three monochromatic light respectively.Be filled with ionized gas between the per two adjacent barrier ribs.When the plasma in electrode pair 56 drives inferior pixel cell 76B, 76R or 76G made it produce ionization, the ultraviolet ray that plasma produced can be shone phosphor body 74B, 74R or 74G, and made time pixel cell 76B, 76R or 76G send a monochromatic light.In addition, the rear side of header board 54 is fixed on the top of these a plurality of barrier ribs, is used for isolated so that the plasma on barrier rib both sides can't circulate mutually.
See also Fig. 4.Fig. 4 is the top view of the pixel cell 78 of plasma display 50 shown in Figure 3.As shown in Figures 3 and 4, plasma display 50 includes a light shield layer 66 in addition, be arranged on the part surface of electrode pair 56 of header board 54, in order to shield a part desire to penetrate first, second, and the light of pixel cell 76B, 76R, 76G for the third time.Light shield layer 66 is made of opaque auxiliary electrode.
As shown in Figure 4, first, second and third pixel cell 76B, 76R, 76G are respectively blue sub-pixels unit, red time pixel cell and green time pixel cell.For the first time the area of light shield layer 66 is less than the area of light shield layer 66 among the second time pixel cell 76R among the pixel cell 76B, and promptly the light transmission capacity of blue sub-pixels unit 76B can be greater than the light transmission capacity of red time pixel cell 76R.In addition, the area of light shield layer 66 is also less than the area of light shield layer 66 among the second time pixel cell 76R among the pixel cell 76G for the third time, and promptly the light transmission capacity of green time pixel cell 76G can be greater than the light transmission capacity of red time pixel cell 76R.For the first time the area of light shield layer 66 can be more than or equal to the area of light shield layer 66 among the pixel cell 76B for the third time among the pixel cell 76B, makes the light transmission capacity of blue sub-pixels unit 76B can be more than or equal to the light transmission capacity of green time pixel cell 76B.So can change the ratio of original three coloured light, reach the purpose that improves colour temperature.
See also Fig. 5.Fig. 5 is the top view of the pixel cell 92 of second embodiment of the invention plasma display 90.The main difference part of plasma display 90 and plasma display 50 is the generation type of light shield layer.The light shield layer 66 of plasma display 50 is made of auxiliary electrode, and the light shield layer 94 of plasma display 90 is made of opaque black mask (black matrix).Because the transparent panel of the existing plasma display of part is provided with the black mask of strip to prevent the light leakage, so can directly the black mask that has strip now be made engrail to form above-mentioned light shield layer 94.Certainly, the opaque layer that light shield layer 94 also can be other forms, and its position can be in header board 54, dielectric layer 58 or protective seam 60 arbitrarily between the two, or be located at header board 54 upsides.As long as the shaded effect difference of the opaque layer of homogeneous pixel cell 76B, 76R, 76G top can not reached the purpose of the ratio of original three coloured light of change with the raising colour temperature.
See also Fig. 6.Fig. 6 is the top view of the pixel cell 102 of third embodiment of the invention plasma display 100.Plasma display 100 is that with the main difference part of plasma display 50,90 plasma display 100 does not have light shield layer.Plasma display 100 the first time pixel cell 76B first and second electrode 62,63 on have the one first, the 4th hole 104,107, first and second electrode 62,63 of pixel cell 76R has the one second, the 5th hole 105,108 for the second time, has the one the 3rd, the 6th hole 106,109 on first and second electrode 62,63 of pixel cell 76G for the third time.For the first time the first, the 4th hole 104,107 in the pixel cell 76B is greater than the second, the 5th hole 105,108 in the second time pixel cell 76R, and the 3rd, the 6th hole 106,109 in the pixel cell 76G is greater than the second, the 5th hole 105,108 in the second time pixel cell 76R for the third time.Generally speaking, the material of the transparent conductor of first, second electrode 62,63 is a tin indium oxide, though this material is approximate transparent, its transmittance still is lower than transparent header board 54, so the hole on first, second electrode 62,63 is big more, transmittance is promptly big more.That is to say, the transmittance of blue sub-pixels unit 76B is greater than the transmittance of red time pixel cell 76R, the transmittance of green pixel cell 76G is also greater than the transmittance of red time pixel cell 76R, in order to changing the ratio of original three coloured light, and reaches the purpose that improves colour temperature.Certainly, first and second electrode 62,63 of pixel cell 76R also can not have hole for the second time, and the ratio that can reach original three coloured light of change equally is to improve the purpose of colour temperature.
Compare with existing plasma display 10,40, plasma display 50,90,100 of the present invention has light shield layer 66,94 or hole 104～109, make the transmittance of of all kinds pixel cell 76B, 76G, 76B slightly different, so can adjust the shown different colours light of each time pixel cell 76R, 76G, 76B of each pixel cell 78,92,102, to improve the colour temperature that this different colours light is presented when synthetic, reach preferable white balance (white balance), make picture distincter.The above only is preferred embodiment of the present invention, and all equalizations of doing by claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (8)
1. plasma display, it includes:
One back plate;
One header board, this header board are arranged on this back plate abreast;
One electrode pair, this electrode pair comprise one first electrode and one second electrode, and this first electrode and this second electrode are located at the downside of this header board along a first direction;
A plurality of barrier ribs (rib), these a plurality of barrier ribs comprise one first barrier rib at least, one second barrier rib, one the 3rd barrier rib, be located at the upside of this back plate in regular turn abreast along a second direction, this second direction and this first direction near normal, this first barrier rib, second barrier rib and this electrode pair confluce formation one is pixel cell (sub pixel unit) for the first time, and this second barrier rib, the 3rd barrier rib and this electrode pair confluce formation one is pixel cell for the second time; And
One light shield layer is arranged on the right part surface of this front plate electrodes, in order to cover a part desire to penetrate this first time pixel cell with the light of pixel cell for the second time;
Wherein for the first time the area of this light shield layer is less than this area of this light shield layer in pixel cell for the second time in the pixel cell, and the transmittance that makes this of pixel cell greater than the transmittance of this of pixel cell first time second time.
2. plasma display as claimed in claim 1, wherein the interior back plate surfaces surperficial and two adjacent barrier ribs of pixel cell all are coated with a phosphor body each time, be used for sending a visible light, the interior coating of this pixel cell first time can be sent the phosphor body of blue light, and the interior coating of this pixel cell second time can be sent the phosphor body of red light.
3. plasma display as claimed in claim 1, wherein this light shield layer is formed on this electrode pair, will penetrate the light of this electrode pair in order to shaded portions.
4. plasma display as claimed in claim 3, wherein this electrode pair is made of transparent conductor, and this light shield layer is made of opaque auxiliary electrode.
5. plasma display as claimed in claim 1, wherein this light shield layer is made of opaque black mask (black matrix).
6. plasma display, it includes:
One back plate;
One header board, this header board are arranged on this back plate abreast;
One electrode pair (electrode pair), this electrode pair comprise one first electrode and one second electrode, and this first electrode and this second electrode are located at the downside of this header board along a first direction; And
A plurality of barrier ribs (rib), these a plurality of barrier ribs comprise one first barrier rib at least, one second barrier rib, one the 3rd barrier rib, be located at the upside of this back plate in regular turn abreast along a second direction, this second direction and this first direction near normal, this first barrier rib, second barrier rib and this electrode pair confluce (intersection) formation one is pixel cell (sub pixel unit) for the first time, and this second barrier rib, the 3rd barrier rib and this electrode pair confluce formation one is pixel cell for the second time;
But wherein this first electrode elimination part to penetrate this first time pixel cell and this second time pixel cell light, this first time pixel cell first electrode on have one first hole, this, first electrode of pixel cell had one second hole second time, this first hole is greater than this second hole, and the transmittance that makes this of pixel cell greater than the transmittance of this of pixel cell first time second time.
7. plasma display as claimed in claim 6, wherein the interior back plate surfaces surperficial and two adjacent barrier ribs of pixel cell all are coated with a phosphor body each time, be used for sending a visible light, the interior coating of this pixel cell first time can be sent the phosphor body of blue light, and the interior coating of this pixel cell second time can be sent the phosphor body of red light.
8. plasma display as claimed in claim 6, wherein this first electrode and second electrode are made of a transparent conductor at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00118466A CN1129107C (en) | 2000-06-30 | 2000-06-30 | Plasma display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00118466A CN1129107C (en) | 2000-06-30 | 2000-06-30 | Plasma display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1330355A CN1330355A (en) | 2002-01-09 |
| CN1129107C true CN1129107C (en) | 2003-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00118466A Expired - Fee Related CN1129107C (en) | 2000-06-30 | 2000-06-30 | Plasma display |
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| Country | Link |
|---|---|
| CN (1) | CN1129107C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105899B (en) * | 2006-07-12 | 2011-09-07 | Lg电子株式会社 | Filter and plasma display apparatus using filter |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452148C (en) * | 2005-11-04 | 2009-01-14 | 乐金电子（南京）等离子有限公司 | Set for driving plasma panel, and driving method |
| KR100734920B1 (en) * | 2006-07-12 | 2007-07-03 | 엘지전자 주식회사 | Plasma display device |
| CN108646455B (en) * | 2018-04-17 | 2019-09-17 | Oppo广东移动通信有限公司 | Electronic equipment and its display panel |
-
2000
- 2000-06-30 CN CN00118466A patent/CN1129107C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105899B (en) * | 2006-07-12 | 2011-09-07 | Lg电子株式会社 | Filter and plasma display apparatus using filter |
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| Publication number | Publication date |
|---|---|
| CN1330355A (en) | 2002-01-09 |
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