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China ESEN HK LIMITED
China ESEN HK LIMITED
China ESEN HK LIMITED

ESEN HK LIMITED

Σύνοψη της εταιρείας- Ιδρύθηκε: 2010- Πιστοποιητικά: ISO9001 (Παιδική ποιότητα) & ISO14001 (Περιβάλλον)- Επικεντρωμένη στον κλάδο: βιομηχανικές λύσεις οθόνης---Πορτοφόλι προϊόντων1Τεχνολογίες οθόνης:- Μονοχρωματικές οθόνες: TN/STN/FSTN LCM- Προηγμένες ενότητες: COG LCD, VATN-LCD- Διαφάνειες υψηλής τεχνολογίας: TFT LCD, OLED- Συστήματα ολοκληρωμένων λύσεων2Τεχνικές ικανότητες:- Κατόχος πολλαπλών παγκόσμιων ευρεσιτεχνιών- Ερευνητική και Ανάπτυξη: Εγκατεστημένα συστήματα, καινοτομίες LCD/TFT/OLED--...
Εταιρικές ειδήσεις
τα τελευταία νέα της εταιρείας για Application scenarios of resistive touch TFT screens
2025/08/08
.gtr-container { font-family: Arial, sans-serif; color: #333333; line-height: 1.6; max-width: 800px; margin: 0 auto; padding: 15px; } .gtr-heading { font-size: 18px !important; font-weight: bold; color: #1a5276; margin: 20px 0 10px 0; border-bottom: 2px solid #3498db; padding-bottom: 5px; } .gtr-paragraph { font-size: 14px !important; margin-bottom: 15px; text-align: justify; } .gtr-feature-list { font-size: 14px !important; margin-left: 20px; padding-left: 0; list-style-type: disc; } .gtr-feature-list li { margin-bottom: 8px; } .gtr-highlight { background-color: #f8f9fa; padding: 15px; border-left: 4px solid #3498db; margin: 15px 0; } .gtr-keyword { font-weight: bold; color: #2874a6; } Resistive touch TFT screens, with their strong anti-interference ability, support for touching any object (including operation with gloves), and moderate cost, occupy an irreplaceable position in multiple professional fields, especially suitable for harsh environments or high-precision operation scenarios. The field of industrial control is its core application scenario. On the CNC machine tools and PLC control panels in the factory, the resistive touch TFT screens (usually 5 to 10.1 inches) can withstand oil and dust pollution. Operators can still precisely click buttons or slide to adjust parameters even when wearing gloves. For instance, the display screens at the assembly stations on an automotive production line need to operate stably in an environment of mechanical vibration and metal dust. The sealed structure of the resistive screen (with a protection level of IP65) can effectively resist external interference and ensure the accurate input of production instructions. Resistive touch TFT screens are widely used in POS terminals and ordering systems in the retail and catering industries. When cashiers operate with their nails or special pens, the screen can respond quickly, and its scratch-resistant feature is suitable for high-frequency use (thousands of touches per day). In the kitchen ordering screen, in a high-temperature steam environment, the moisture-proof performance of resistive screens is superior to that of capacitive screens, which can prevent touch failure caused by water vapor. It is also frequently seen in the medical equipment field, such as the operation panels of infusion pumps and monitors. When doctors or nurses wear rubber gloves to operate, the resistive screen can reliably recognize touch instructions, and its surface can withstand alcohol disinfection (wiped multiple times a day) without performance degradation. In addition, in outdoor self-service terminals (such as payment machines and inquiry machines), resistive screens can operate normally in low-temperature and rainy environments, meeting the all-weather usage requirements. Although capacitive screens have been replaced in consumer electronics such as mobile phones and tablets, the practicality of resistive touch TFT screens in professional fields remains irreplaceable.
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τα τελευταία νέα της εταιρείας για Multi-touch realization of resistive touch TFT screen
2025/08/06
.gtr-container { font-family: 'Arial', sans-serif; color: #333; line-height: 1.6; font-size: 14px !important; max-width: 800px; margin: 0 auto; } .gtr-heading { font-size: 18px !important; font-weight: 600; color: #222; margin: 20px 0 10px 0; padding-bottom: 5px; border-bottom: 1px solid #e0e0e0; } .gtr-paragraph { margin-bottom: 15px; text-align: justify; } .gtr-list { margin: 15px 0; padding-left: 20px; } .gtr-list-item { margin-bottom: 8px; } .gtr-highlight { font-weight: 600; color: #0066cc; } .gtr-note { background-color: #f5f5f5; padding: 10px 15px; border-left: 3px solid #0066cc; margin: 15px 0; } The implementation difficulty of multi-touch on resistive touch TFT screens is higher than that on capacitive screens. In the early days, traditional resistive screens only supported single-point touch due to structural limitations. However, modern technology, through improving hardware design and algorithm optimization, has been able to achieve limited multi-touch functions, mainly adopting two technical paths: "analog voltage division" and "matrix scanning". Analog voltage division technology is applicable to two-point touch. Its core is to apply voltages in different directions simultaneously on the upper and lower conductive layers. When two points touch at the same time, the controller calculates their respective coordinates by detecting the superimposed voltage values of the two contact points. For instance, when a voltage of 0-5V is applied to the X-axis and a voltage of 5-0V to the Y-axis, two different voltage combinations will be generated when the two points touch. Through algorithm analysis, the positions of the two touch points can be distinguished. However, this approach has a "ghost point" problem (i.e., misjudgment of non-real touch points), and it is necessary to use software filtering algorithms to eliminate incorrect coordinates to ensure the accuracy of two-point touch. Matrix scanning technology achieves multi-point identification by dividing the conductive layer into multiple independent small areas (matrix units), each equipped with an independent detection circuit. For instance, the X-axis is divided into 10 columns and the Y-axis into 10 rows, forming 100 matrix units. When multiple points touch, the controller can simultaneously detect the conduction status of different units and locate multiple touch points. This technology supports three or more touch points, but it requires an increase in the complexity of the conductive layer's circuits, which is relatively costly. Moreover, its resolution is limited by the number of matrix units, making it suitable for medium and low-precision scenarios. At present, the multi-touch of resistive screens is mainly applied in two-point operations (such as zooming and rotating), and is used in industrial drawing boards and some handheld terminals. Although it is inferior to capacitive screens in response speed and the number of touch points, it has more advantages in stability in harsh environments (such as oil stains and moisture).
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τα τελευταία νέα της εταιρείας για Durability test of resistive touch TFT screen
2025/08/05
.gtr-container { font-family: 'Arial', sans-serif; color: #333; line-height: 1.6; max-width: 800px; margin: 0 auto; } .gtr-heading { font-size: 18px !important; font-weight: 600; color: #2c3e50; margin: 20px 0 10px 0; padding-bottom: 5px; border-bottom: 1px solid #e0e0e0; } .gtr-paragraph { font-size: 14px !important; margin-bottom: 15px; } .gtr-list { font-size: 14px !important; margin-left: 20px; margin-bottom: 15px; padding-left: 15px; } .gtr-list li { margin-bottom: 8px; } .gtr-highlight { font-weight: 600; color: #2c3e50; } The durability test of resistive touch TFT screens is a key step in evaluating their long-term reliability. It requires simulating various stresses during daily operations and covers three major categories of test items: mechanical wear, environmental adaptability, and electrical performance stability. Mechanical Wear Testing Mechanical wear testing is the core, which simulates the repeated touch of fingers or styluses through a wear resistance testing machine. The test standards typically require that the touch function be tested at the center and four corners of the screen with a pressure of 50-100g and a frequency of 1-3 times per second. The cumulative number of clicks should reach over 1 million times (5 million times for industrial-grade products). After the test, it is necessary to ensure that the touch function is normal, without local failure or response delay. The resistance change rate of the conductive layer does not exceed 20%. The sliding test involves reciprocating sliding on the screen surface under the same pressure. After a cumulative distance of 100 kilometers, there are no obvious scratches on the surface (hardness is tested with a 3H pencil), and the light transmittance does not decrease by more than 5%. Environmental Adaptability Testing Environmental adaptability testing includes high and low temperature cycling, humidity testing and vibration testing. The high and low temperature test was conducted 50 times within the range of -20 ℃ to 60℃, with each cycle lasting for 2 hours. After the test, there were no bubbles or delamination on the screen, and the touch response was normal. The humidity test was conducted in an environment with 95% RH (40℃) for 1000 hours to ensure that the conductive layer did not oxidize and the resistance remained stable. The vibration test simulates the vibration during transportation or use. It is conducted at a frequency of 10 to 2000Hz for one hour. There is no loosening of any component and the function is not affected. Electrical Performance Testing Electrical performance testing requires continuous monitoring of signal stability after long-term use. After continuous operation for 1000 hours, the offset of touch coordinates should be controlled within ±1mm, with no drift phenomenon, to ensure the usage requirements of high-precision scenarios such as industrial control.
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