Display device having an anisotropic-conductive adhesive film
View Patent ↗A liquid crystal display (LCD) device includes a LCD panel and a flexible wiring member coupled together by an anisotropic-conductive adhesive film (ACF). The ACF includes insulating resin and a plurality of conductive particles dispersed therein and each having an insulating film on a conductive body. The insulating film is broken by the thermal compression of the ACF during manufacture of the LCD device, thereby allowing terminals of the LCD panel and terminals of the flexible wiring member to be electrically coupled together.
1. A display device comprising:
a display panel mounting thereon a plurality of first terminals:
a flexible wiring member including a plurality of second terminals corresponding to said first terminals; and
an anisotropic-conductive adhesive film (ACF) for electrically and mechanically coupling together said first terminals and said second terminals,
said ACF including insulating resin and a plurality of conductive particles dispersed in said insulating resin, said conductive particles including first particles each having an exposed surface having an insulating property on at least a portion of said exposed surface.
2. The display device according to claim 1 , wherein said conductive particles include said first particles in number 50% or more of the total number of said conductive particles.
3. The display device according to claim 1 , wherein each of said first particles includes a conductive body and an insulating film covering said conductive body.
4. The display device according to claim 3 , wherein said conductive body includes an insulator core and a conductive film covering said insulator core.
5. The display device according to claim 1 , wherein each of said first particles includes a conductive body and a plurality of insulator pieces attached onto a surface of said conductive body.
6. The display device according to claim 5 , wherein said conductive body includes an insulator core and a conductive film covering said insulator core.
7. The display device according to claim 1 , wherein said first and second terminals are arranged at a pitch which is equal to or above four times as large as a mean diameter of said conductive particles.
8. The display device according to claim 1 , wherein said ACF covers at least an exposed portion of wires adjacent said second terminals of said flexible wiring member.
9. The display device according to claim 1 , wherein said ACF covers at least an exposed portion of interconnects adjacent said first terminals of said display panel.
10. The display device according to claim 1 , wherein said display panel has a chamfer on an edge thereof adjacent said first terminals.
11. The display device according to claim 1 , wherein said display panel is a liquid crystal display panel.