Browse Prior Art Database

LCD ASSEMBLY WITH INTEGRATED BACKLIGHTING

IP.com Disclosure Number: IPCOM000006820D
Original Publication Date: 1993-Mar-01
Included in the Prior Art Database: 2002-Feb-05
Document File: 1 page(s) / 67K

Publishing Venue

Motorola

Related People

Jerrold Pine: AUTHOR [+2]

Abstract

Since LCD technology relies on internal or external light sources, all laptop and personal message devices have lighting coupled with translucent LCD displays. For cost and assembly efficiency in manufacturing, a more effective design would couple the internal lighting directly into the LCD assembly. Electroluminescent tech- nology shares many technologies with LCD's. Both technologies require a backplane for ground. By shar- ing a common backplane, @n assembly for an integrated LCD/backlight is detailed below. Beneath the rear polar- izer, the assembly would kqinate a transflector that would serve as a dielectric for EL portion of the display. The actual EL phospher would be sandwiched between the transflector and the rear klectrode, and sealed in her- metically with a rear glass. ~ STANDARD LCD TECHNOLOGY -EC iTRODE I _I ELiMEL LCD WITH INTEGRATED BACKLIGHT TOP FOIAFUZER PARENT ELECTRODE CKPLANE TRANSFLECTOW DIELECTRIC .,...., ;.,.i___i_._i.._/ I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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0 M MO-LA

INC. Technical Developments Volume 18 March 1993

LCD ASSEMBLY WITH INTEGRATED BACKCIGHTING

by Jerrold Pine and Gary Blitman

  Since LCD technology relies on internal or external light sources, all laptop and personal message devices have lighting coupled with translucent LCD displays. For cost and assembly efficiency in manufacturing, a more effective design would couple the internal lighting directly into the LCD assembly. Electroluminescent tech- nology shares many technologies with LCD's. Both technologies require a backplane for ground. By shar-

ing a common backplane, @n assembly for an integrated LCD/backlight is detailed below. Beneath the rear polar- izer, the assembly would kqinate a transflector that would

serve as a dielectric for EL portion of the display. The actual EL phospher would be sandwiched between the transflector and the rear klectrode, and sealed in her- metically with a rear glass. ~

STANDARD LCD TECHNOLOGY

-EC iTRODE

I _I ELiMEL

LCD WITH INTEGRATED BACKLIGHT

TOP FOIAFUZER

PARENT ELECTRODE

CKPLANE

TRANSFLECTOW DIELECTRIC


..,....

.,...., ;.,.i___i_._i.._/

I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

,~::::: :.._:::::i:';:i::;:-:::i:-:-::~: :::-::.~:.,-,::,:-::~.l.:::: -:-:~::'-i::::::?--i:,::i::i::

REAR G&&

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172 0 Motorola. 1°C. 1993

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