Browse Prior Art Database

COMBINATION LCD AND SWITCH ACTUATOR

IP.com Disclosure Number: IPCOM000006336D
Original Publication Date: 1991-Dec-01
Included in the Prior Art Database: 2001-Dec-26
Document File: 2 page(s) / 85K

Publishing Venue

Motorola

Related People

Brad Murray: AUTHOR

Abstract

Current hand held communication devices, such as pagers, can have as many as 5 separate switches to con- trol the different functions of the product. The function of each switch is usually labeled on the product and is explained in detail in the products user manual. Some practice is needed to understand the function and loca- tion of each switch so that constant referral to the man- ual is not needed. Even with practice, when the product is worn on the waist, all of the switches are not readily available to the user since not all of the switches can be placed on a surface of the product closest to the user. This is usually due to the product's small size or a dis- play may already be placed on the surface closest to the user. This can cause the user to mistakenly use the wrong switch which could result in messages b&g inadvertently erased or other unwanted functions being activated.

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MOlOROlA INC. Technical Developments Volume 14 December 1991

COMBINATION LCD AND SWITCH ACTUATOR

by Brad Murray

   Current hand held communication devices, such as pagers, can have as many as 5 separate switches to con- trol the different functions of the product. The function of each switch is usually labeled on the product and is explained in detail in the products user manual. Some practice is needed to understand the function and loca- tion of each switch so that constant referral to the man- ual is not needed. Even with practice, when the product is worn on the waist, all of the switches are not readily available to the user since not all of the switches can be placed on a surface of the product closest to the user. This is usually due to the product's small size or a dis- play may already be placed on the surface closest to the user. This can cause the user to mistakenly use the wrong switch which could result in messages b&g inadvertently erased or other unwanted functions being activated.

  To overcome these problems, there is disclosed a method of using the display of a product as a switch actuator. Referring now to Figure 1, a cross-sectional side view of a typical LCD display is shown using the disclosed method. This consists of a LCD with protective lens on the top surface and a ditfuser on the bottom surface. The ditkser is used when backlighting the LCD is nec- essary. All three of these parts are laminated or mounted together to form a one-piece rigid display module. In the example shown, two switc...