• 제목/요약/키워드: Barrier-ribs

검색결과 92건 처리시간 0.031초

Sintering Distortion of Barrier Ribs Formed via Capillary Molding Route

  • Chang, Tae-Jung;Kim, Yong-Seog
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 한국정보디스플레이학회 2003년도 International Meeting on Information Display
    • /
    • pp.362-364
    • /
    • 2003
  • In this study, sintering behavior of closed-cell type barrier ribs formed via capillary molding route was examined. Sintering of the molded barrier ribs revealed asymmetric shrinkage, leading to distortion of the cells. The effects of the parameters such as solid loading in the paste, presintering temperature, and morphology of the barrier ribs on the sintering shrinkage of the barrier ribs were investigated.

  • PDF

Technique for evaluating the mechanical properties of barrier ribs in PDP

  • Hwang, Seong-jin;Kim, Hyung-Sun
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.II
    • /
    • pp.1241-1244
    • /
    • 2005
  • To prevent deformation and fracture of barrier ribs we suggest how to evaluate the mechanical properties of barrier ribs which depend on porosity and components by indentation technology. Our experimental results show that the mechanical properties of barrier ribs are strongly correlated to porosity and components.

  • PDF

Closed-Cell Type Barrier Ribs using Molds Prepared by Inclined UV Lithography

  • Kim, Ki-In;Kim, Yong-Seog
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
    • /
    • pp.571-574
    • /
    • 2004
  • Symmetric closed-cell type barrier ribs of PDP were formed by capillary molding process using molds prepared by inclined UV lithography process. The effects of inclining angle of barrier ribs on the sintering shrinkage and luminance of panel were examined. The results indicate that the barrier ribs of inclined morphology affect the sintering shrinkage and luminance efficiency significantly.

  • PDF

The formation of barrier ribs for PDP by capillary infiltration method

  • Kim, Yong-Ho;Kim, Yong-Seog
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 한국정보디스플레이학회 2002년도 International Meeting on Information Display
    • /
    • pp.1088-1090
    • /
    • 2002
  • In this study, a new processing route of barrier ribs for the plasma display panels was attempted. A slurry containing ceramic powders for the barrier ribs, binder, hardener, and other additives, was molded into a PDMS mold by capillary infiltration process. The molded slurry was cured prior to mold removal. It was demonstrated that the process can fabricate successfully the cell type barrier ribs of PDP.

  • PDF

Transparent Plasma Display using Transparent Glass Barrier Ribs

  • Lee, Sung-Min;Kim, Seung-Hun;Oh, Seung-Hwa;Shin, Bhum-Jae;Choi, Kyung-Cheol
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
    • /
    • pp.339-341
    • /
    • 2009
  • A transparent plasma display was developed using transparent glass barrier ribs. Glass barrier ribs were fabricated via a wet etching process. Glass barrier ribs created using a top and bottom etching process showed better transparency compared to those created through only a top etching process. A see-through phosphor layer was obtained by coating the sidewall of the barrier ribs with a conventional opaque phosphor. A fabricated prototype of a transparent plasma display was clear enough to see the background beyond the panel and was well operated by a conventional driving scheme. The maximum luminance was 1150 cd/$m^2$ and the maximum luminous efficacy was 1.35 lm/W in a Ne+13.5%Xe gas-mixture and green cells.

  • PDF

Photolithographic Method of Patterning Barrier Ribs for PDP by Green Sheet

  • Park, Lee-Soon;Jang, Dong-Gyu;Hur, Young-June;Lee, Sung-Ho;Kim, Duck-Gon;Kwon, Young-Hwan
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.II
    • /
    • pp.1225-1228
    • /
    • 2005
  • Barrier ribs in the plasma display panel(PDP) function to maintain the discharge space between the glass plates as well as to prevent optical crosstalk. Patterning of barrier ribs is one of unique processes for making PDP. In this work photosensitive barrier rib pastes were prepared by incorporating binder polymer, solvent, functional monomers photoinitiator, and barrier rib powder of which surface was treated with fumed silica particles. Study on the function of materials for the barrier rib paste were undertaken. After optimization of paste formulation and photolithographic process, it was found that photolithographic patterning of barrier ribs with photosensitive barrier rib green sheet could be used in the fabrication of high resolution PDP.

  • PDF

수용성 UV경화성 수지를 이용한 고품질 PDP용 격벽제작 기술 개발 (Development of High-definition PDP(Plasma Display Panel) Barrier Ribs Using Watersoluble UV-curing Resin)

  • 남수용;우진호;이미영;이갑희;김광영
    • 한국인쇄학회지
    • /
    • 제21권2호
    • /
    • pp.67-74
    • /
    • 2003
  • Barrier ribs for PDP(plasma display panel) are commonly utilized to have uniform height and width and to prevent opical crosstalk between adjacent cells. The requirements for such barrier ribs are uniform height and shape, low outgassing rate and low porosity, high aspect ratio, and fine resolution. In this study, we are studied about that to make efficiency of material and high quality barrier ribs for PDP. As a result, could got high barrier ribs of $140{\mu}m$ evenly in 1th phenomenon using watersoluble UV curing resin and know that flatness of upper part is also very good.

  • PDF

Barriers Ribs using Molds Prepared by Inclined UV Lithography

  • Kim, Ki-In;Kim, Yong-Seog
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 한국정보디스플레이학회 2003년도 International Meeting on Information Display
    • /
    • pp.788-790
    • /
    • 2003
  • Closed-cell type barrier ribs of PDP were formed by capillary molding process using molds prepared by inclined UV lithography process. Various types of molds with different inclined angles were prepared by patterning SU-8 thick photoresist film and casting with PDMS. The ribs with various type cells were successfully formed by the process. The effects of inclined angle on the distortion of barrier ribs during sintering were investigated. The results indicated that the barrier ribs with a draft angle and dimensional change does not affect the distortion of the barrier ribs during sintering, suggesting that the closed-cell must be isotropic in sintering shrinkage.

  • PDF

Effect of barrier rib morphologies on luminance of PDP

  • Chang, Tae-Jung;Park, Do-Young;Kim, Yong-Seog
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
    • /
    • pp.727-730
    • /
    • 2004
  • Closed-cell type barrier ribs such as honeycomb, SDR, inverse SDR and waffle types were produced using capillary molding process. Phosphor layers were formed by osmosis coating process on those barrier ribs. Using the rear plate with closed-cell ribs, the luminance and its efficiency was measured. The results demonstrated a significant improvement in efficiency by combining closed-cell type ribs with a new phosphor forming technology

  • PDF

PDP 격벽 성형용 몰드 제작과 성형에 대한 연구 (A Study on Mold Fabrication and Forming for PDP Barrier Ribs)

  • 조인호;정상철;정해도;손재혁
    • 한국정밀공학회지
    • /
    • 제18권5호
    • /
    • pp.171-176
    • /
    • 2001
  • Plasma Display Panel(PDP) is a type of flat panel display utilizing the light emission produced by gas discharge. Barrier Ribs of PDP separating each sub-pixel prevents optical and electrical crosstalks from adjacent sub-pixels. Mold for forming barrier ribs has been newly researched to overcome the disadvantages of conventional manufacturing process such as screen printing, sand-blasting and photosensitive glass methods. Mold for PDP barrier ribs have stripes of micro grooves transferring glass-material wall. In this paper, Stripes of grooves of which width 48${\mu}{\textrm}{m}$ and 270${\mu}{\textrm}{m}$, depth 124${\mu}{\textrm}{m}$, pitch 274${\mu}{\textrm}{m}$ was acquired by machining hard and brittle materials of WC, Silicon, Alumina with dicing saw blade. Maximum roughness of the bottom and sidewall of the grooves was respectively 120nm, 287nm in grooving WC. Maximum tilt angle caused by difference between upper-most width and lower-most width was 2$^{\circ}$. Maximum Radius of bottom curvatures was 7.75${\mu}{\textrm}{m}$. This results satisfies the specification for barrier ribs of 50 inch XGA PDP if the groove form of mold was fully transferred to the barrier ribs. Barrier ribs were formed with Silicone rubber mold, which is transferred from grooved hard materials. Silicone rubber mold has elasticity accommodating the waveness of lower glass plate of PDP.

  • PDF