The rapid development of information technology, touch screen LCD as a mainstream display technology, has been widely used in cell phones, tablet PCs, TVs, cars and other fields. However, with the customer for high resolution, high quality, high performance of these requirements, some can only full-screen click touch screen way, also gradually unable to meet the needs of the people. Therefore, in order to cater to such market demand, the trend of technology upgrade has begun, a new generation of touch technology is developing in a more advanced direction.
First, what is the difference?
Compared with the traditional resistive screen and capacitive screen, a new generation of touch technology using sound, pressure, infrared, ultrasonic, electromagnetic waves and capacitance, etc., can more accurately sense the user's touch behavior, and give the user a more convenient, fast operating experience. Among them, the most popular should also be electromagnetic touch and voice-activated touch screen.
Electromagnetic touch control is a technology that uses the principle of electromagnetic induction to work, and can simulate the real operating sensation of writing or drawing with a human hand by sensing the position of the user's pen strokes according to electromagnetic waves. Electromagnetic touch can also be designed to realize pressure-sensitive function, which makes the input more precise and accurate, and can conveniently realize handwritten notes, doodles, signatures, sketching design and other operations.
Voice-activated touch screen does not need to touch the screen, the user only needs to command with his voice to complete the operation. This approach integrates the sensitivity, speed and security of human-computer interaction, which is very suitable for the use of some special scenarios, such as customized cars, public facilities, immersive games, and many other scenarios.
Second, what is the improvement of the new generation of touch technology for the existing application scenarios?
1. More realistic effect
The physical principles used in the new generation of touch technology can more realistically reflect the user's real sensory experience, thus perfecting the realism of a good image. For example, electromagnetic touch control can simulate a brush stroke to show richer texture, stroke, color and density and other characteristics, while embedded voice control technology allows users to achieve voice control from a distance. This refined processing solution greatly improves the picture quality of the touch screen and the user experience.
2. More Intelligent
The new generation of touch control technology is advantageous in the recognition of motion direction and intelligent processing. For example, the new generation of touch solutions can recognize rapid scanning, clicking, focus shift, hovering and other actions, but also faster to achieve a change in response or fine-tuning of the action, these same operations are in the past may require multiple touches to achieve.
3. Compatible with a variety of terminals
A new generation of touch technology to solve the traditional touch screen technology can not be compatible with a variety of terminals many limitations, the adaptability of the terminal more flexible, universal. This mobility also brings great convenience for users to switch to tablet PCs in the early morning and then to cell phones at noon.
Third, how to improve the energy efficiency of high-resolution LCD screen?
High-resolution LCD screen for the manufacturer's input and viewing quality have high requirements. However, the power consumption of high-resolution LCD screen also inevitably increases. How to achieve both high quality and high energy efficiency at the same time has become an issue that cannot be ignored.
1. Reduce the appearance of excessive black nuts
Black walnut is very important for the composition of high-resolution LCD screen. However, the presence of too much black walnut can also greatly increase the energy consumption of the LCD screen. Therefore, it is necessary to use high quality black walnut.
2. Adoption of lower power backlight module
The backlight module is the most power consuming part of the LCD screen. Adopting lower power backlight module can effectively reduce the energy consumption of LCD screen.
3. Improvement of display engine energy management
By optimizing the energy management of the display engine, for example, dynamically adjusting the brightness of the backlight according to the movement of the characters in the video, the backlight can be avoided to be excessively bright in the still image or video, resulting in a waste of energy.
By optimizing the energy management of the display engine, for example, dynamically adjusting the brightness of the backlight according to the movement of the characters in the video, you can avoid over-brightening of the backlight during still images or videos, which results in a waste of energy.
Fourth, what is the realization principle of multi-touch screen?
Multi-touch screen, is to realize multiple points at the same time on the screen to touch, click, slide, zoom and other multiple operations. In the multi-touch screen, a single screen will be divided into multiple touch areas, called "Touch Point", each Touch Point has a unique ID number.
Specific realization is mainly divided into two ways, one is capacitive touch screen, one is resistive touch screen. Capacitive touch screen realization principle is the use of electrolytes (such as air or glass) of electrical conductivity, as well as the conductivity of human skin to form a charge, identify the location of the user's finger, and generate the corresponding logic signals on the screen.
The realization principle of the resistive touch screen, it is the two layers of film were spread scattered in the transmission and transmission of electricity between the substrate, the two layers of film sandwiched between the interval, usually insulating materials, the location of the extruded film will form a capacitance, through the identification of the location of the input signal, you can easily realize the multi-touch.
Penny
Web Content Writer
4 years of experience
This article is edited by Penny, the website content writer of COMPT, who has 4 years working experience in the industrial PCs industry and often discusses with colleagues in R&D, marketing and production departments about the professional knowledge and application of industrial controllers, and has a deep understanding of the industry and products.
Please feel free to contact me to discuss more about industrial controllers. sales@gdcompt.com
