CN1323415C - Precoat liquid for colour kinescope and manufcturing method of its film - Google Patents
Precoat liquid for colour kinescope and manufcturing method of its film Download PDFInfo
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- CN1323415C CN1323415C CNB2004100259173A CN200410025917A CN1323415C CN 1323415 C CN1323415 C CN 1323415C CN B2004100259173 A CNB2004100259173 A CN B2004100259173A CN 200410025917 A CN200410025917 A CN 200410025917A CN 1323415 C CN1323415 C CN 1323415C
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Abstract
The present invention relates to a method for preparing pre-coating liquid and a coating film of a color picture tube. The method comprises the following steps: at first, magnetically stirring metal oxide with a total weight percentage of 2 to 30% for 10 minutes and then filtering; dispersing PVA with a total weight percentage of 0.005 to 5% and glue silicon dioxide with a total weight percentage of 0.05 to 5% by water, magnetically stirring for 10 minutes, and filtering to make into blending liquid; uniformly mixing the metal oxide and the blending liquid; adding Proniko with a total weight percentage of 0.05 to 1% and ammonium bichromate with a total weight percentage of 0.005 to 0.5% before screening, and then stirring uniformly. The pre-coating liquid is coated on a black matrix display screen, and then blue fluorescence powder is coated after the pre-coating liquid is dry. The pre-coating liquid is solidified by back exposure, and simultaneously, the blue fluorescence powder is developed. Green and red fluorescence powder is orderly coated and developed by back exposure. The present invention can change the four-time coating of red, green and blue light filtering films plus the pre-coating liquid or the twice coating of a mixed light filtering film plus the pre-coating liquid into the once coating of the pre-coating liquid with a light filtering function.
Description
Technical field
The invention belongs to the manufacturing technology of color picture tube, the painted pre-coating solution of particularly a kind of color picture tube and be coated with unconcerned manufacture method.
Background technology
In recent years along with the commercialization of flat-panel screens such as liquid crystal, plasma, also impelled the progress of color picture tube to complanation, structurally, the complanation fully of colorful visualization tube outer surface, but the complete complanation of screen inner surface is very very difficult, in order to alleviate the colour purity drift that the shadow mask intensity decreases causes, the inner surface of the color picture tube that outer surface is pure flat is generally sphere or cylinder.Therefore, there is thickness difference in phosphor screen central authorities with the glass of periphery, thereby have caused the luminance difference of picture central authorities with periphery, cause that the level of image quality reduces.Use high permeability glass screen can reduce the problem of the light transmission rate variance of phosphor screen central authorities and periphery, but the external light reflection rate height of high permeability glass screen, contrast will be reduced, usually the method that solves this class problem be to use the fluorescent material that increasing colour saturation or the screen inner surface form selectivity absorb outside the methods such as filter coating of light, reduce of the reflection of outer light, improve the color picture tube contrast in the face.The screen inner surface film formed typical method that filters is the method for four coating process of a kind of needs, promptly on the screen inner surface of existing black matrix film, apply the suspension of the 1st look inorganic pigment corresponding with the light-emitting phosphor form and aspect, after exposure, development, drying, form the 1st look filter coating, and form the 2nd look and the 3rd look filter coating successively, finish the manufacturing of filter coating.Then, coating contains the pre-liquid of silicon dioxide microparticle, and press usual way, of all kinds on light film and precoating liquid film, form blue, green and red fluorescence powder film successively, the manufacture method of this class screen inner surface filter coating, not only complex technical process, process-cycle long, use device systems huge, and the materials used amount is big, energy consumption is many, the manufacturing cost height.Formed the filter coating technology of some simplified structures and technology in recent years, need carry out the second coat process, promptly on the screen inner surface of existing black matrix film, apply a kind of suspension of hybrid pigment, finish the manufacturing of filter coating, then, coating contains the pre-liquid of silicon dioxide microparticle, and press usual way on the precoating liquid film, form blueness, green and red fluorescence powder film successively.
Summary of the invention
The object of the present invention is to provide and a kind ofly can reduce color picture tube face reflectivity, simplify the structure and the manufacturing process of filter coating, reduce the painted pre-coating solution of color picture tube of manufacturing cost and the manufacture method of filming thereof.
For achieving the above object, the preparation method of color picture tube pre-coating solution of the present invention is:
1) at first adding scattered mass percent in the A jar is 2～30% metal oxide, and magnetic agitation 10 minutes is filtered;
2) use aqueous dispersion add the cataloid of the PVA of gross mass percentage 0.005～5% and gross mass percentage 0.05～5% successively in the B jar after, magnetic agitation 10 minutes is filtered and is made distiller liquor;
3) distiller liquor among the jar B is slowly added in the A jar, stirred 30 minutes;
4) Pu Luonike of adding gross mass percentage 0.05～1% and gross mass percentage are that 0.005～0.5% ammonium dichromate stirs and gets final product before being coated with screen.
Metal oxide of the present invention is iron oxide, cobalt oxide or chromium oxide or its mixture.
The manufacture method that color picture tube pre-coating solution of the present invention is filmed is:
1) at first will be installed in through the display screen of black matrix manufacturing on year head, being provided with and carrying an inclination angle is 35 degree, applies pre-coating solution with 18 rev/mins rotating speeds, and being coated with the screen time is 2 seconds;
2) stop after coating is finished and under 55 rev/mins rotating speed, kept 15 seconds again in 10 seconds;
3) inclination angle that will carry head be adjusted into 75 degree under 20 rev/mins rotating speed with 45～51 ℃ of dryings 36 seconds;
4) when the blue colour fluorescent powder exposure of subsequent technique, utilize back-exposure to carry out making in 4 seconds pre-coating solution to solidify.
Use color picture tube pre-coating solution of the present invention the red, green, blue three look filter coatings of prior art to be added four coatings of pre-coating solution, perhaps mix the second coat that filter coating adds pre-coating solution, become the primary coating of painted pre-coating solution with filtering functions, metal oxide in the painted pre-coating solution of the present invention can form cancellated film with PVA, utilize the back-exposure in the fluorescent film manufacturing, improved pre-coating solution filming performance, hydrophobic performance and with the adhesive property of glass, the phosphor powder layer back of developing does not have problem such as come off, residual.
Embodiment
Embodiment 1: at first add scattered mass percent and be 2% iron oxide in the A jar, magnetic agitation 10 minutes is filtered; Use aqueous dispersion add the cataloid of the PVA of gross mass percentage 5% and gross mass percentage 0.05% successively in the B jar after, magnetic agitation 10 minutes is filtered and is made distiller liquor; Distiller liquor among jar B is slowly added in the A jar, stirred 30 minutes; The Pu Luonike of adding gross mass percentage 1% and gross mass percentage are that 0.005% ammonium dichromate stirs and promptly gets pre-coating solution before being coated with screen.The manufacture method that color picture tube pre-coating solution of the present invention is filmed is: at first will be installed in through the display screen of black matrix manufacturing and carry on the head, being provided with and carrying an inclination angle is 35 degree, and with 18 rev/mins rotating speed coating pre-coating solution, being coated with the screen time is 2 seconds; Stop after coating is finished and under 55 rev/mins rotating speed, kept 15 seconds again in 10 seconds; With an inclination angle of carrying head be adjusted into 75 degree under 20 rev/mins rotating speed with 45 ℃ of dryings 36 seconds; When the blue colour fluorescent powder exposure of subsequent technique, utilize back-exposure to carry out making in 4 seconds pre-coating solution to solidify and get final product.
Embodiment 2: at first add scattered mass percent and be 30% cobalt oxide in the A jar, magnetic agitation 10 minutes is filtered; Use aqueous dispersion add the cataloid of the PVA of gross mass percentage 0.005% and gross mass percentage 0.2% successively in the B jar after, magnetic agitation 10 minutes is filtered and is made distiller liquor; Distiller liquor among jar B is slowly added in the A jar, stirred 30 minutes; The Pu Luonike of adding gross mass percentage 0.05% and gross mass percentage are that 0.07% ammonium dichromate stirs and promptly gets pre-coating solution before being coated with screen.The manufacture method that color picture tube pre-coating solution of the present invention is filmed is: at first will be installed in through the display screen of black matrix manufacturing and carry on the head, being provided with and carrying an inclination angle is 35 degree, and with 18 rev/mins rotating speed coating pre-coating solution, being coated with the screen time is 2 seconds; Stop after coating is finished and under 55 rev/mins rotating speed, kept 15 seconds again in 10 seconds; With an inclination angle of carrying head be adjusted into 75 degree under 20 rev/mins rotating speed with 51 ℃ of dryings 36 seconds; When the blue colour fluorescent powder exposure of subsequent technique, utilize back-exposure to carry out making in 4 seconds pre-coating solution to solidify and get final product.
Embodiment 3: at first add scattered mass percent and be 15% chromium oxide in the A jar, magnetic agitation 10 minutes is filtered; Use aqueous dispersion add the cataloid of the PVA of gross mass percentage 2% and gross mass percentage 1.0% successively in the B jar after, magnetic agitation 10 minutes is filtered and is made distiller liquor; Distiller liquor among jar B is slowly added in the A jar, stirred 30 minutes; The Pu Luonike of adding gross mass percentage 0.08% and gross mass percentage are that 0.09% ammonium dichromate stirs and promptly gets pre-coating solution before being coated with screen.The manufacture method that color picture tube pre-coating solution of the present invention is filmed is: at first will be installed in through the display screen of black matrix manufacturing and carry on the head, being provided with and carrying an inclination angle is 35 degree, and with 18 rev/mins rotating speed coating pre-coating solution, being coated with the screen time is 2 seconds; Stop after coating is finished and under 55 rev/mins rotating speed, kept 15 seconds again in 10 seconds; With an inclination angle of carrying head be adjusted into 75 degree under 20 rev/mins rotating speed with 48 ℃ of dryings 36 seconds; When the blue colour fluorescent powder exposure of subsequent technique, utilize back-exposure to carry out making in 4 seconds pre-coating solution to solidify and get final product.
Embodiment 4: at first add scattered mass percent and be 8% the iron oxide and the mixture of cobalt oxide in the A jar, magnetic agitation 10 minutes is filtered; Use aqueous dispersion add the cataloid of the PVA of gross mass percentage 0.3% and gross mass percentage 0.7% successively in the B jar after, magnetic agitation 10 minutes is filtered and is made distiller liquor; Distiller liquor among jar B is slowly added in the A jar, stirred 30 minutes; The Pu Luonike of adding gross mass percentage 0.2% and gross mass percentage are that 0.5% ammonium dichromate stirs and promptly gets pre-coating solution before being coated with screen.The manufacture method that color picture tube pre-coating solution of the present invention is filmed is: at first will be installed in through the display screen of black matrix manufacturing and carry on the head, being provided with and carrying an inclination angle is 35 degree, and with 18 rev/mins rotating speed coating pre-coating solution, being coated with the screen time is 2 seconds; Stop after coating is finished and under 55 rev/mins rotating speed, kept 15 seconds again in 10 seconds; With an inclination angle of carrying head be adjusted into 75 degree under 20 rev/mins rotating speed with 50 ℃ of dryings 36 seconds; When the blue colour fluorescent powder exposure of subsequent technique, utilize back-exposure to carry out making in 4 seconds pre-coating solution to solidify and get final product.
Embodiment 5: at first add scattered mass percent and be 26% the cobalt oxide and the mixture of chromium oxide in the A jar, magnetic agitation 10 minutes is filtered; Use aqueous dispersion add the cataloid of the PVA of gross mass percentage 1.5% and gross mass percentage 5% successively in the B jar after, magnetic agitation 10 minutes is filtered and is made distiller liquor; Distiller liquor among jar B is slowly added in the A jar, stirred 30 minutes; The Pu Luonike of adding gross mass percentage 0.9% and gross mass percentage are that 0.2% ammonium dichromate stirs and promptly gets pre-coating solution before being coated with screen.The manufacture method that color picture tube pre-coating solution of the present invention is filmed is: at first will be installed in through the display screen of black matrix manufacturing and carry on the head, being provided with and carrying an inclination angle is 35 degree, and with 18 rev/mins rotating speed coating pre-coating solution, being coated with the screen time is 2 seconds; Stop after coating is finished and under 55 rev/mins rotating speed, kept 15 seconds again in 10 seconds; With an inclination angle of carrying head be adjusted into 75 degree under 20 rev/mins rotating speed with 47 ℃ of dryings 36 seconds; When the blue colour fluorescent powder exposure of subsequent technique, utilize back-exposure to carry out making in 4 seconds pre-coating solution to solidify and get final product.
Embodiment 6: at first add scattered mass percent and be 20% the iron oxide and the mixture of cobalt oxide and chromium oxide in the A jar, magnetic agitation 10 minutes is filtered; Use aqueous dispersion add the cataloid of the PVA of gross mass percentage 0.07% and gross mass percentage 3.5% successively in the B jar after, magnetic agitation 10 minutes is filtered and is made distiller liquor; Distiller liquor among jar B is slowly added in the A jar, stirred 30 minutes; The Pu Luonike of adding gross mass percentage 0.4% and gross mass percentage are that 0.35% ammonium dichromate stirs and promptly gets pre-coating solution before being coated with screen.The manufacture method that color picture tube pre-coating solution of the present invention is filmed is: at first will be installed in through the display screen of black matrix manufacturing and carry on the head, being provided with and carrying an inclination angle is 35 degree, and with 18 rev/mins rotating speed coating pre-coating solution, being coated with the screen time is 2 seconds; Stop after coating is finished and under 55 rev/mins rotating speed, kept 15 seconds again in 10 seconds; With an inclination angle of carrying head be adjusted into 75 degree under 20 rev/mins rotating speed with 49 ℃ of dryings 36 seconds; When the blue colour fluorescent powder exposure of subsequent technique, utilize back-exposure to carry out making in 4 seconds pre-coating solution to solidify and get final product.
The comparison of the manufacture method that following table is filmed for color picture tube pre-coating solution of the present invention and four coatings, second coat method.
The color picture tube coating process relatively
| Four coated techniques | Second coat technology | Technology of the present invention | |
| 1. | Black matrix is made | Black matrix is made | Black matrix is made |
| 2. | Blue filter coating coating | - | |
| 3. | Blue filter coating exposure | - | |
| 4. | Blue filter coating develops | - | |
| 5. | The green filter film coating | - | |
| 6. | The green filter film exposure | - | |
| 7. | Green filter film develops | - | |
| 8. | Red filter coating coating | - | |
| 9. | Red filter coating exposure | - |
| 10. | Red filter coating develops | The coating of hybrid pigment suspension | - |
| 11. | The pre-coating solution coating | The pre-coating solution coating | Painted pre-coating solution coating |
| 12. | The blue colour fluorescent powder coating | The blue colour fluorescent powder coating | The blue colour fluorescent powder coating |
| 13. | The blue colour fluorescent powder exposure | The blue colour fluorescent powder exposure | Blue colour fluorescent powder and the exposure of painted pre-coating solution |
| 14. | Blue colour fluorescent powder develops | Blue colour fluorescent powder develops | Blue colour fluorescent powder develops |
| 15. | The green emitting phosphor coating | The green emitting phosphor coating | The green emitting phosphor coating |
| 16. | The green emitting phosphor exposure | The green emitting phosphor exposure | The green emitting phosphor exposure |
| 17. | Green emitting phosphor develops | Green emitting phosphor develops | Green emitting phosphor develops |
| 18. | The red fluorescence powder coating | The red fluorescence powder coating | The red fluorescence powder coating |
| 19. | Red fluorescence powder develops | Red fluorescence powder develops | Red fluorescence powder develops |
| 20. | The red fluorescence powder coating | The red fluorescence powder coating | The red fluorescence powder coating |
As seen from the above table, use color picture tube pre-coating solution of the present invention the red, green, blue three look filter coatings of prior art to be added four coatings of pre-coating solution, perhaps mix the second coat that filter coating adds pre-coating solution, become the primary coating of painted pre-coating solution with filtering functions, metal oxide in the pre-coating solution of the present invention can form cancellated film with PVA, utilize the back-exposure in the fluorescent film manufacturing, improved pre-coating solution filming performance, hydrophobic performance and with the adhesive property of glass, the phosphor powder layer back of developing does not have problem such as come off, residual.Adopt the color picture tube of the pre-coating film of the present invention's manufacturing, have and three looks or suitable brightness, the contrast of filter coating of the same colour, and reduced manufacturing cost.
Claims (3)
1, a kind of preparation method of color picture tube pre-coating solution is characterized in that:
1) at first adding scattered gross mass percentage in the A jar is 2～30% metal oxide, and magnetic agitation 10 minutes is filtered;
2) use aqueous dispersion add the cataloid of the PVA of gross mass percentage 0.005～5% and gross mass percentage 0.05～5% successively in the B jar after, magnetic agitation 10 minutes is filtered and is made distiller liquor;
3) distiller liquor among the jar B is slowly added in the A jar, stirred 30 minutes;
4) Pu Luonike of adding gross mass percentage 0.05～1% and gross mass percentage are that 0.005～0.5% ammonium dichromate stirs and gets final product before being coated with screen.
2, the preparation method of color picture tube pre-coating solution according to claim 1 is characterized in that: said metal oxide is iron oxide, cobalt oxide or chromium oxide or its mixture.
3, a kind of color picture tube pre-coating solution manufacture method of filming is characterized in that:
1) at first will be installed in through the display screen of black matrix manufacturing and carry on the head, being provided with and carrying an inclination angle is 35 degree, and with the pre-coating solution that 18 rev/mins rotating speeds coating uses the preparation method of the described color picture tube pre-coating solutions of claim 1 to make, being coated with the screen time is 2 seconds;
2) stop after coating is finished and under 55 rev/mins rotating speed, kept 15 seconds again in 10 seconds;
3) inclination angle that will carry head be adjusted into 75 degree under 20 rev/mins rotating speed with 45～51 ℃ of dryings 36 seconds;
4) when the blue colour fluorescent powder exposure of subsequent technique, utilize back-exposure to carry out making in 4 seconds pre-coating solution to solidify.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100259173A CN1323415C (en) | 2004-03-08 | 2004-03-08 | Precoat liquid for colour kinescope and manufcturing method of its film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100259173A CN1323415C (en) | 2004-03-08 | 2004-03-08 | Precoat liquid for colour kinescope and manufcturing method of its film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1560894A CN1560894A (en) | 2005-01-05 |
| CN1323415C true CN1323415C (en) | 2007-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100259173A Expired - Fee Related CN1323415C (en) | 2004-03-08 | 2004-03-08 | Precoat liquid for colour kinescope and manufcturing method of its film |
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| Country | Link |
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| CN (1) | CN1323415C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110643231A (en) * | 2019-10-15 | 2020-01-03 | 新恒东薄膜材料（常州）有限公司 | Pre-coating liquid for enhancing surface adhesion of flexible glass substrate and application method thereof |
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|---|---|---|---|---|
| JPS59219832A (en) * | 1983-05-27 | 1984-12-11 | Toshiba Corp | Method of forming phosphor screen for color picture tube |
| JPS6313231A (en) * | 1986-07-03 | 1988-01-20 | Mitsubishi Electric Corp | Forming of phosphor screen of color cathode-ray tube |
| JPS63131431A (en) * | 1986-11-20 | 1988-06-03 | Toshiba Corp | Fluorescent screen forming method for color cathode-ray tube |
| CN1037995A (en) * | 1988-01-20 | 1989-12-13 | 东芝株式会社 | Form the method for luminescent screen for colour display tube |
| CN1046246A (en) * | 1989-04-03 | 1990-10-17 | 三星电管株式会社 | In order to the graphite suspension spreading device at the bottom of the formation color picture tube fast black base |
| CN1050395A (en) * | 1989-09-23 | 1991-04-03 | 三星电管株式会社 | Make the precoating solution that color cathode ray tube screen is used |
| CN1084542A (en) * | 1992-09-24 | 1994-03-30 | 化成欧普东尼克斯株式会社 | The renovation process that has the fluorescent substance of red pigment |
| JP2000011871A (en) * | 1998-06-17 | 2000-01-14 | Sony Corp | Manufacture of phosphor screen for color cathode-ray tube |
| CN1381861A (en) * | 2002-04-19 | 2002-11-27 | 彩虹彩色显像管总厂 | Process for manufacturing fluorescent screen of color CRT |
-
2004
- 2004-03-08 CN CNB2004100259173A patent/CN1323415C/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59219832A (en) * | 1983-05-27 | 1984-12-11 | Toshiba Corp | Method of forming phosphor screen for color picture tube |
| JPS6313231A (en) * | 1986-07-03 | 1988-01-20 | Mitsubishi Electric Corp | Forming of phosphor screen of color cathode-ray tube |
| JPS63131431A (en) * | 1986-11-20 | 1988-06-03 | Toshiba Corp | Fluorescent screen forming method for color cathode-ray tube |
| CN1037995A (en) * | 1988-01-20 | 1989-12-13 | 东芝株式会社 | Form the method for luminescent screen for colour display tube |
| CN1046246A (en) * | 1989-04-03 | 1990-10-17 | 三星电管株式会社 | In order to the graphite suspension spreading device at the bottom of the formation color picture tube fast black base |
| CN1050395A (en) * | 1989-09-23 | 1991-04-03 | 三星电管株式会社 | Make the precoating solution that color cathode ray tube screen is used |
| CN1084542A (en) * | 1992-09-24 | 1994-03-30 | 化成欧普东尼克斯株式会社 | The renovation process that has the fluorescent substance of red pigment |
| JP2000011871A (en) * | 1998-06-17 | 2000-01-14 | Sony Corp | Manufacture of phosphor screen for color cathode-ray tube |
| CN1381861A (en) * | 2002-04-19 | 2002-11-27 | 彩虹彩色显像管总厂 | Process for manufacturing fluorescent screen of color CRT |
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| Publication number | Publication date |
|---|---|
| CN1560894A (en) | 2005-01-05 |
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| Date | Code | Title | Description |
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| ASS | Succession or assignment of patent right |
Owner name: IRICO GROUP ELECTRONICS CO., LTD. Free format text: FORMER OWNER: CAIHONG COLOUR KINESCOPE GENERAL FACTORY Effective date: 20041126 |
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| C06 | Publication | ||
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| PB01 | Publication | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20041126 Address after: No. 1 Rainbow Road, Shaanxi, Xianyang Applicant after: IRICO Group Electronics Co., Ltd. Address before: No. 1 Rainbow Road, Shaanxi, Xianyang Applicant before: Caihong Color CRT General Factory |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| C17 | Cessation of patent right | ||
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Granted publication date: 20070627 Termination date: 20140308 |