下一代手机比起前几代产品,变得更薄更轻,拥有更多功能。所有功能都必须通过键盘来实现,过去用发光二极管作为键盘的背光源被认为是标准设计,超薄手机设计者必须对发光源的薄厚、重量、光线亮度和发光的均匀性进行认真评估和筛选。也需要考虑产生的热量、功耗、多样性设计和键盘外观等问题。 Next-generation handsets have become thinner and lighter and have more features than their predecessors. All functions must be accomplished via a keyboard. Backlights, which used to be LEDs as a keyboard, were considered standard designs in the past. Slim handset designers must carefully evaluate and screen the thickness, weight, light intensity, and uniformity of the light emitted by the light source . Also need to consider the heat generated, power consumption, diversity design and keyboard appearance and other issues.