low-power color tft lcd display for handheld embedded systems quotation

An LCD (Liquid Crystal Display) is a standard display device for hand-held embedded systems. Today, color TFT (Thin-Film Transistor) LCDs are common even in cost-effective equipments. An LCD display system is composed of an LCD panel, a frame buffer memory, an LCD and frame buffer controller, and a backlight inverter and lamp. All of them are heavy power consumers, and their portion becomes much more dominant when running interactive applications. This is because interactive applications are often triggered by human inputs and thus result in a lot of slack time in the CPU and memory system, which can be effectively used for dynamic power management. In this paper, we introduce low-power LCD display schemes as a system-level approach. We accurately characterize the energy consumption at the component level and minimize energy consumption of each component without appreciable display quality degradation. We develop several techniques such as variable-duty-ratio refresh, dynamic-color-depth control and backlight luminance dimming with brightness compensation or contrast enhancement.

This website is using a security service to protect itself from online attacks. The action you just performed triggered the security solution. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data.

An LCD (Liquid Crystal Display) is a standard display device for hand-held embedded systems. Today, color TFT (Thin-Film Transistor) LCDs are common even in cost-effective equipments. An LCD display system is composed of an LCD panel, a frame buffer memory, an LCD and frame buffer controller, and a backlight inverter and lamp. All of them are heavy power consumers, and their portion becomes much more dominant when running interactive applications. This is because interactive applications are often triggered by human inputs and thus result in a lot of slack time in the CPU and memory system, which can be effectively used for dynamic power management. In this paper, we introduce low-power LCD display schemes as a system-level approach. We accurately characterize the energy consumption at the component level and minimize energy consumption of each component without appreciable display quality degradation. We develop several techniques such as variable-duty-ratio refresh, dynamic-color-depth control and backlight luminance dimming with brightness compensation or contrast enhancement.

As an option, you can order this TFT pre-assembled onto a breakout/carrier board. The board allows easy prototyping through its 0.1" headers. You can also include the carrier board in your end product to simplify construction and assembly. The carrier board contains a constant-current switching LED driver. The PCB is sized to fit neatly within the outline of the display.

This display module is a 3 inch diagonal, 240xRGBx400, full color TFT LCD display. It has a wide-screen format and white LED backlight. Its integrated controller gives you a simple, fast, digital interface to the display through your 3v processor"s port pins.

It may be used in either portrait or landscape orientation. In portrait mode, the narrow width of the TFT display works well with portable, handheld, or embedded systems. In landscape mode, the low profile of the TFT LCD display may be used for the user interface of 2U+ rack mount devices, or in bench top laboratory equipment such as power supplies, meters, and signal generators.

Take your product to the next level with a capacitive touch screen LCD by Displaytech. Our PCAP (projected capacitive) touch screen technology is a premium alternative to a resistive touchscreen. We offer capacitive touchscreens for our 2.8-inch, 3.5-inch, 4.3-inch, 5-inch and 7-inch TFT LCD displays.

Capacitive touch technology allows for an enhanced product user interface since it supports gestures and proximity sensing. Unlike resistive touch screens which rely on pressure, capacitive touch responds to an electric current and can handle multi-finger touch points. This means that capacitive touchscreens can be used with your bare finger and it supports gestures such as pinch-to-zoom or swipe.

The CM-X300 is a small Computer-on-Module board designed to serve as a building block in embedded applications. The CM-X300 has all the components required to run operating systems such as Linux and Windows CE. Ready packages for these operating systems are available from CompuLab.

The small size and low power consumption of the CM-X300 allows its integration into hand-held and mobile devices, while its low price makes it an ideal selection for cost-sensitive applications. The CM-X300 delivers a price / performance ratio significantly better than that of any other platform.

The feature set of the CM-X300 module combines a 32-bit CPU, DDR, Flash Disk and vital computing peripherals. For embedded applications, the CM-X300 provides a general purpose local bus, 100Mbit Ethernet, serial ports, I/O lines and other essential functions.

Targeting the handheld application market as well, the module provides integrated WLAN (WiFi) and Bluetooth interfaces to implement industry standard wireless connectivity. Integrated battery charging and management enables easy integration in battery-powered mobile devices.

TFT (Thin Film Transistor) LCD (Liquid Crystal Display) dominates the world flat panel display market now. Thanks for its low cost, sharp colors, acceptable view angles, low power consumption, manufacturing friendly design, slim physical structure etc., it has driven CRT(Cathode-Ray Tube) VFD ( Vacuum Fluorescent Display) out of market, squeezed LED (Light Emitting Diode) displays only to large size display area. TFT LCD displays find wide applications in TV, computer monitors, medical, appliance, automotive, kiosk, POS terminals, low end mobile phones, marine, aerospace, industrial meters, smart homes, handheld devices, video game systems, projectors, consumer electronic products, advertisement etc. For more information about TFT displays, please visit our knowledge base.

What we are talking about TFT LCD, it is a LCD that uses TFT technology to improve image qualities such as addressability and contrast. A TFT LCD is an active matrix LCD, in contrast to passive matrix LCDs or simple, direct-driven LCDs with a few segments without TFT in each pixel.

The TN type TFT LCD display is one of the oldest and lowest cost type of LCD display technology. TN TFT LCD displays have the advantages of fast response times, but its main advantages are poor color reproduction and narrow viewing angles. Colors will shift with the viewing angle. To make things worse, it has a viewing angle with gray scale inversion issue. Scientist and engineers took great effort trying to resolve the main genetic issues. Now, TN displays can look significantly better than older TN displays from decades earlier, but overall TN TFT LCD display has inferior viewing angles and poor color in comparison to other TFT LCD technologies.

IPS TFT LCD display was developed by Hitachi Ltd. in 1996 to improve on the poor viewing angle and the poor color reproduction of TN panels. Its name comes from its in-cell twist/switch difference compared with TN LCD panels.The liquid crystal molecules move parallel to the panel plane instead of perpendicular to it. This change reduces the amount of light scattering in the matrix, which gives IPS its characteristic of much improved wide viewing angles and color reproduction. But IPS TFT display has the disadvantages of lower panel transmission rate and higher production cost compared withTN type TFT displays, but these flaws can’t prevent it to be used in high end display applications which need superior color, contrast, viewing angle and crispy images.

The mono-domain VA technology is widely used for monochrome LCD displays to provide pure black background and better contrast, its uniformly alignment of the liquid crystal molecules makes the brightness changing with the viewing angle.

MVA solves this problem by causing the liquid crystal molecules to have more than one direction on a single pixel. This is done by dividing the pixel into two or four regions – called domains – and by using protrusions on the glass surfaces to pretilt the liquid crystal molecules in the different directions. In this way, the brightness of the LCD display can be made to appear uniform over a wide range of viewing angles.

This is an LCD technology derived from the IPS by Boe-Hydis of Korea. Known as fringe field switching (FFS) until 2003, advanced fringe field switching is a technology similar to IPS offering superior performance and color gamut with high luminosity. Color shift and deviation caused by light leakage is corrected by optimizing the white gamut, which also enhances white/grey reproduction. AFFS is developed by Hydis Technologies Co., Ltd, Korea (formally Hyundai Electronics, LCD Task Force).

In 2004, Hydis Technologies Co., Ltd licensed its AFFS patent to Japan’s Hitachi Displays. Hitachi is using AFFS to manufacture high end panels in their product line. In 2006, Hydis also licensed its AFFS to Sanyo Epson Imaging Devices Corporation. (Reference)

The AFFS is similar to the IPS in concept; both align the crystal molecules in a parallel-to-substrate manner, improving viewing angles. However, the AFFS is more advanced and can better optimize power consumption. Most notably, AFFS has high transmittance, meaning that less of the light energy is absorbed within the liquid crystal layer and more is transmitted towards the surface. IPS TFT LCDs typically have lower transmittances, hence the need for the brighter backlight. This transmittance difference is rooted in the AFFS’s compact, maximized active cell space beneath each pixel.

The PDX-057T panel PC is a VortexDX/MX low power processor based computer that is designed to serve as a human machine interface (HMI). It is a PC-based system with 5.7 ” color TFT LCD display, Touchscreen, Ethernet controller, COM port interface and an audio controller. With a built-in CompactFlash and MicroSD socket and no moving parts, the PDX-057T is a rugged compact Panel-PC. Shown here with the wireless option and antenna mounted on the chassis. The antenna can be remote located using a standard SMA extension.

The PDX-057T PPC utilizes the Vortex 486 class, 1GHz fanless processor allowing it to run Linux and even XPE* Operating Systems. Note: while the PDX-057T PPC can run XPE its graphic capabilities are limited. If advanced graphic capabilities are required under XPE please choose a PPC with more processing power.

EMAC is a global leader in industrial automation and HMI Panel PCs.  We provide Panel PCs for embedded automation computers, automation controllers, remote i/o modules, and custom data acquisition solutions.

EMAC’s Panel PCs are available ready to run with the Operating System installed on flash disk or hard drive. Apply power and watch either the Windows or Linux User Interface appear on the vivid color LCD. Interact with the PPC using the responsive integrated touchscreen. Everything works out of the box, allowing you to concentrate on your application, rather than building and configuring device drivers. Just Write-It and Run-It.

Contact the EMAC Panel PC Sales Department for details on Sunlight Readable Panel PC, IP65 Panel PC, IP67 Panel PC, Wide Voltage Panel PC, and/or Low Power Consumption Panel PC specifications.

Display Modes(Transmissive/Reflective/Transflective), Sharp Microelectronics of the Americas (2002), see http://www.sharpsma.com/sma/Products/displays/AppRefGuide/DisplayModes.htm

Choi, L., Shim, H., Chang, N.: Low Power color TFT LCD display for hand-held embedded systems. In: Proc. of Int. Symp.on Low-Power Electronics and Design, August 2002, pp. 112–117 (2002)

Gatti, F., Acquaviva, A., Benini, L., Ricco, B.: Low-Power control techniques for TFT LCD displays. In: Proc. of Int. Conf. Compilers, Architecture and Synthesis for Embedded Systems, October 2002, pp. 218–224 (2002)

Cheng, W.-C., Pedram, M.: Power minimization in a Backlight TFT-LCD display by concurrent brightness and contrast scaling. In: Proc. of Design Automation and Test in Europe, February 2004, vol. 1, pp. 16–20 (2004)

Shim, H., Chang, N., Pedram, M.: A backlight power management framework for the battery-operated multi-media systems. IEEE Design and Test Magazine, 388–396 (September/October 2004)

Pasricha, S., Luthra, M., Mohapatra, S., Dutt, N., Venkatasubramanian, N.: Dynamic backlight adaptation for low-power handheld devices. IEEE Design and Test Magazine, 398–405 (September/October 2004)

Pattanai, K.S.N., Tumblin, J.E., Yee, H., Greenberg, D.P.: Time dependent visual adaptation for realistic image display. In: SIGGRAPH, pp. 47–54 (2000)

Sobottka, K., Pitas, I.: A novel method for automatic face segmentation, facial feature extraction and tracking. Signal Proc. Image Com. 12(3), 263–281 (1998)

Stiefelhagen, R., Yang, J.: Gaze tracking for multimodal human-computer interaction. In: Proc. IEEE Int. Conf. Acoustics, Speech and Signal Proc. (1997)

Terrilon, J.C., David, M., Akamatsu, S.: Automatic detection of human faces in natural scene images by use of a skin color model and of invariant models. In: Proc. IEEE 3rd Int. Conf. on Automatic Face and Gesture Recognition, pp. 88–93 (1998)

Kawato, S., Ohya, J.: Two-step approach for real time eye-tracking with a new filtering technique. In: IEEE Int. Conf. on Systems, Man & Cybernetics, pp. 1366–1371 (2000)

for a long time so that temporal summation of radian flux occurs. Just-perceptible luminance is measured for a large-area visual field. These thresholds are used

slightly to about 1.36W. This is close to the power consumption when the user is preparing for a shot, e.g., adjusting the focus and view. Also, it takes

An auditory signal can be directly recorded and played back for interfacing purposes. Direct recording is often used for note-taking and direct playback

In this scenario, the clip is not comfortably enjoyable on either system, even in a quiet office environment, if the system is about two feet from the user head.

Bailey, R. W. Human Performance Engineering: Design High Quality Professional User Interfaces for Computer Products, Applications and Systems, 3rd ed. Prentice Hall PTR, Upper Saddle River, NJ, 1996.

Brakmo, L. S., Wallach, D. A., and Viredaz, M. A. mSleep: A technique for reducing energy consumption in handheld devices. In Proc. Int. Conf. Mobile Systems, Applications, and Services (June 2004), pp. 12-22.

Cheng, W.-C., and Pedram, M. Power minimization in a backlit TFT-LCD display by concurrent brightness and contrast scaling. IEEE Trans. Consumer Electronics 50, 1 (Feb. 2004), 25-32.

Choi, I., Shim, H., and Chang, N. Low-power color TFT LCD display for handheld embedded systems. In Proc. Int. Symp. Low Power Electronics & Design (Aug. 2002), pp. 112-117.

Commarford, P. M., and Lewis, J. R. Models of throughput rates for dictation and voice spelling for handheld devices. Int. J. Speech Technology 7, 1 (2004), 69-79.

Fishkin, K. P., Partridge, K., and Chatterjee, S. User interface components for lightweight WPANs. IEEE Pervasive Computing Magazine, 4 (Oct.-Dec. 2002).

Iyer, S., Luo, L., Mayo, R., and Ranganathan, P. Energy-adaptive display system designs for future mobile environments. In Proc. Int. Conf. Mobile Systems, Applications, & Services (May 2003), pp. 245-258.

Karat, C.-M., Halverson, C., Horn, D., and Karat, J. Patterns of entry and correction in large vocabulary continuous speech recognition systems. In Proc. Conf. Human Factors in Computing Systems (May 1999), pp. 568-575.

Lorch, J., and Smith, A. Using user interface event information in dynamic voltage scaling algorithms. In Proc. Int. Symp. Modeling, Analysis & Simulation of Computer Telecommunications Systems (Oct. 2003), pp. 46-55.

MacKenzie, I. S., and Soukoreff, R. W. Text entry for mobile computing: Models and methods, theory and practice. Human-Computer Interaction 17 (2002), 147-198.

Omoigui, N., He, L., Gupta, A., Grudin, J., and Sanocki, E. Time-compression: Systems concerns, usage, and benefits. In Proc. Conf. Human Factors in Computing Systems (1999), pp. 136-143.

Pasricha, S., Mohapatra, S., Luthra, M., Dutt, N., and Subramanian, N. Reducing backlight power consumption for streaming video applications on mobile handheld devices. In Proc. First Workshop Embedded Systems for Real-Time Multimedia (Oct. 2003).

Sears, A., and Zha, Y. Data entry for mobile devices using soft keyboards: Understanding the effects of keyboard size and user tasks. Int. J. Human-Computer Interaction 16, 2 (2003), 163-184.

Zhong, L., and Jha, N. K. Graphical user interface energy characterization for handheld computers. In Proc. Int. Conf. Compilers, Architecture, & Synthesis for Embedded Systems (Nov. 2003), pp. 232-242.

Key words: tft 0.96", 0.96 tft lcd, 0.96" tft lcd, 0.96 inch tft lcd, tft lcd 0.96, 0.96 tft display, 0.96" tft display, 0.96 inch tft display, tft display 0.96, tft display 0.96", 0.9 tft lcd, tft 0.96

Different displays have different characteristics, just tell Panox Display your application, and operating environment, Panox Display will suggest a suitable display for you.

But Panox Display is not a school, if customers don`t know the basic knowledge to design circuit boards, we suggest using our controller board to drive the display.

First, you need to check whether this display has On-cell or In-cell touch panel, if has, it only needs to add a cover glass on it. If not, it needs an external touch panel.

If you don`t know or don`t want to write a display program on Raspberry Pi, it`s better to get an HDMI controller board from us, and Panox Display will send a config.txt file for reference.