Infrared (optical) touchscreen technology and how it works




Подготовлено на кафедре теории перевода и межкультурной коммуникации факультета романо-германской филологии Воронежского государственного университета.

Рекомендовано для студентов 4-го курса, обучающихся по направлениям: 45.03.02 – Лингвистика; 45.05.01 – Перевод и переводоведение.

Настоящее издание является учебным пособием по практическому курсу «Перевод в производственной сфере». Сборник содержит задания на анализ и перевод текстов таких типов, как техническое описание, руководство для специалиста и/пользователя, инструкция, научно-популярный текст.

Целью настоящего пособия является формирование навыков полного письменного перевода англоязычных текстов, относящихся к сфере производства продукта и материалов.

SECTION I. TECHNOLOGY DESCRIPTIONS. PRODUCT INFORMATION AND TECHNICAL SPECIFICATIONS

Task 1. Study the following texts and diagrams. Write R (resistive) or C (capacitive) next to the features below.

Principle: electrical circuit/stored electrical charge

Action: light contact pulls current to contact point on screen/pressure pushes metallic layers together to close circuit at contact point

Input by: finger only/any object

Clarity: poor (more light filtered out)/good (less light filtered out)

Surface: good scratch resistance/poor scratch resistance

Durability: high (wears down less quickly)/low (wears down more quickly)

What is "resistive touchscreen"?

In the cell phone industry, there are two major categories of touchscreen displays: capacitive touchscreens and resistive touchscreens. Resistive touchscreen displays are composed of multiple layers that are separated by thin spaces. Pressure applied to the surface of the display by a finger or stylus causes the layers to touch, which completes electrical circuits and tells the device where the user is touching. As such, resistive type touchscreens require much more pressure to activate than capacitive touchscreens. Examples of devices with resistive touchscreens are the HTC Touch Diamond and the Samsung SGH-i900 Omnia.

 

What is "capacitive touchscreen"?

Capacitive touchscreen displays rely on the electrical properties of the human body to detect when and where on a display the user touches. Because of this, capacitive displays can be controlled with very light touches of a finger and generally cannot be used with a mechanical stylus or a gloved hand. Examples of devices with capacitive touchscreens are the Apple iPhone and the T-Mobile G1. However, some modern displays like the Nokia Lumia 1520 are designed to support ultra sensitivity that can detect touches while gloves are worn.

Touch Screen Technologies: Capacitive vs Resistive

 

 

Task 2. Prepare a bilingual glossary for the texts and diagrams above. Translate them into Russian.

 

Task 3. Complete the text and translate it into Russian.

Task 4. Study the following description of Infrared Touchscreen Technology and translate the text into Russian. Comment on the translation techniques you applied.

Infrared (optical) touchscreen technology and how it works

The infrared touchscreen technology is one of the most reliable touchscreen technologies. Unlike capacitive touchscreens, infrared touchscreens don’t require any patterning on the glass which increases durability and optical clarity of the overall screen and system.

Infrared touch technology works by using an array of X-Y infrared LED and photodetector pairs around the screens edges, which essentially creates a vertical and horizontal grid system and pattern. These are then used to detect any form of disruptions of the LED beams, which indicates to the sensor the location of the touch (also referred to as ‘beam break’). It correlates this and essentially provides an X and Y co-ordinate, which is where the touch is located. This is similar to SAW technology but infrared uses infrared light beams and not ultrasonic waves.

 

One reason for infrared being used particularly in outdoor and point of sale systems, is that it can detect any input including fingers, gloved fingers, pens and stylus, meaning that it doesn’t require just one element to induce the touch screen location element. This offers more flexibility for the users of the screen and application, but you also have to be careful with regards to the screen for keeping it clean and making sure there is initially nothing on the screen which could disrupt any potential beams too.

The advantages to using infrared touch screen technology:

· No need for multiple layers for the screen so it has a high clarity

For this reason

· Can be sealed and protected against weather and contaminants

· Can be used with gloved or wet hands which is a good advantage

For many sectors

· Lasts a long time and is durable as there’s no need to apply any

Pressure

· Performs in just about any indoor lighting environment

· Is economical and can scale up to larger displays

· Responds to any input: finger, pen, stylus, bank card

· Accurate touch, short response time, up to 40 simultaneous touch

Points

· Monitor and touch overlay are discrete, allowing for upgrades or

Easy replacement

· Wide range of applications: outdoors, medical, industrial



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