igt tft lcd monitor free sample

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The translucent cover 227 with cover segments 218 and 219, may enclose one or more illumination devices. For instance, cover segment 219 may enclose a plurality of LED"s while cover segment 218 may enclose a neon bulb. The illumination of each of the illumination devices may be independently controlled by electronics (see FIG. 3) located within the device housing 200. The translucent cover may extend substantially surround the display 215 or the translucent cover may extend around a portion of the perimeter of the display 215 (see FIG. 2C). The display 215 may be an LED, LCD, vacuum florescent, plasma display screen or any other type of display technology.

The display 215 is a color LCD. Other display technologies such as organic electro-luminescent devices may be used with the display 215. A portion of the LCD 215 may be used at times to visually convey gaming information as described in regards to light 216. For instance, a border region 261 around the perimeter of the display may flash green to indicate a player has requested a drink. In this embodiment, the light 216 surrounds a top portion of the display 215 and parts of the side of display 215. In another embodiment, the light 216 may be located across the top portion of the display 215.

The player tracking unit may include a memory 316 configured to store: 1) player tracking software 314 such as data collection software, 2) player tracking communication protocols (e.g. 320) allowing the player tracking unit 300 to communicate with different types of player tracking servers, 3) device drivers for many types of player tracking interface devices (e.g. 330), 4) voice recognition software for receiving voice commands from the microphone 207, 5) a secondary memory storage device such as a non-volatile memory device, configured to store gaming software related information (The gaming software related information and memory may be used in a game download process or other software download process), and 6) communication transport protocols (e.g. 340) such as TCP/IP, USB, Firewire, IEEE1394, Bluetooth, IEEE 802.11a, IEEE 802.11b, IEEE 802.11x (e.g. other IEEE 802.11 standards), hiperlan/2, and HomeRF allowing the player tracking unit to communicate with devices using these protocols or communication protocols allowing the logic device to communicate with different types of master gaming controllers (e.g. master gaming controllers using different types of communication protocols), such as 104. Typically, the master gaming controller, such as 104, communicates using a serial communication protocol. A few examples of serial communication protocols that may be used to communicate with the master gaming controller include but are not limited to USB, RS-232 and Netplex (a proprietary protocol developed by IGT, Reno, Nev.).

The standard method of operation for IGT game software is to use a state machine. Different functions of the game (bet, play, result, points in the graphical presentation, etc.) may be defined as a state. When a game moves from one state to another, critical data regarding the game software is stored in a custom non-volatile memory subsystem 103. This is critical to ensure the player"s wager and credits are preserved and to minimize potential disputes in the event of a malfunction on the gaming machine.

Turning to FIG. 4, more details of using a player tracking system in the context of game play on a gaming machine are described. In FIG. 4, a video gaming machine 2 of the present invention is shown. Machine 2 includes a main cabinet 4, which generally surrounds the machine interior (See FIG. 1) and is viewable by users. The main cabinet includes a main door 8 on the front of the machine, which opens to provide access to the interior of the machine. Attached to the main door are player-input switches or buttons 32, a coin acceptor 28, and a bill validator 30, a coin tray 38, and a belly glass 40. Viewable through the main door is a video display monitor 34 and an information panel 36. The display monitor 34 will typically be a cathode ray tube, high resolution flat-panel LCD, or other conventional electronically controlled video monitor. The information panel 36 may be a back-lit, silk screened glass panel with lettering to indicate general game information including, for example, the number of coins played. The bill validator 30, player-input switches 32, video display monitor 34, and information panel are devices used to play a game on the game machine 2. The devices are controlled by circuitry (see FIG. 1) housed inside the main cabinet 4 of the machine 2.

To address some of the issues described above, a number of hardware/software components and architectures are utilized in gaming machines that are not typically found in general purpose computing devices, such as PCs. These hardware/software components and architectures, as described below in more detail, include but are not limited to watchdog timers, voltage monitoring systems, state-based software architecture and supporting hardware, specialized communication interfaces, security monitoring and trusted memory.

A watchdog timer is normally used in IGT gaming machines to provide a software failure detection mechanism. In a normally operating system, the operating software periodically accesses control registers in the watchdog timer subsystem to “re-trigger” the watchdog. Should the operating software fail to access the control registers within a preset timeframe, the watchdog timer will timeout and generate a system reset. Typical watchdog timer circuits contain a loadable timeout counter register to allow the operating software to set the timeout interval within a certain range of time. A differentiating feature of the some preferred circuits is that the operating software cannot completely disable the function of the watchdog timer. In other words, the watchdog timer always functions from the time power is applied to the board.

IGT gaming computer platforms preferably use several power supply voltages to operate portions of the computer circuitry. These can be generated in a central power supply or locally on the computer board. If any of these voltages falls out of the tolerance limits of the circuitry they power, unpredictable operation of the computer may result. Though most modern general-purpose computers include voltage monitoring circuitry, these types of circuits only report voltage status to the operating software. Out of tolerance voltages can cause software malfunction, creating a potential uncontrolled condition in the gaming computer. Gaming machines of the present assignee typically have power supplies with tighter voltage margins than that required by the operating circuitry. In addition, the voltage monitoring circuitry implemented in IGT gaming computers typically has two thresholds of control. The first threshold generates a software event that can be detected by the operating software and an error condition generated. This threshold is triggered when a power supply voltage falls out of the tolerance range of the power supply, but is still within the operating range of the circuitry. The second threshold is set when a power supply voltage falls out of the operating tolerance of the circuitry. In this case, the circuitry generates a reset, halting operation of the computer.

The standard method of operation for IGT slot machine game software is to use a state machine. Different functions of the game (bet, play, result, points in the graphical presentation, etc.) may be defined as a state. When a game moves from one state to another, critical data regarding the game software is stored in a custom non-volatile memory subsystem. This is critical to ensure the player"s wager and credits are preserved and to minimize potential disputes in the event of a malfunction on the gaming machine.

Another feature of gaming machines, such as IGT gaming computers, is that they often contain unique interfaces, including serial interfaces, to connect to specific subsystems internal and external to the slot machine. The serial devices may have electrical interface requirements that differ from the “standard” EIA 232 serial interfaces provided by general-purpose computers. These interfaces may include EIA 485, EIA 422, Fiber Optic Serial, optically coupled serial interfaces, current loop style serial interfaces, etc. In addition, to conserve serial interfaces internally in the slot machine, serial devices may be connected in a shared, daisy-chain fashion where multiple peripheral devices are connected to a single serial channel.

The serial interfaces may be used to transmit information using communication protocols that are unique to the gaming industry. For example, IGT"s Netplex is a proprietary communication protocol used for serial communication between gaming devices. As another example, SAS is a communication protocol used to transmit information, such as metering information, from a gaming machine to a remote device. Often SAS is used in conjunction with a player tracking system.

IGT gaming machines may alternatively be treated as peripheral devices to a casino communication controller and connected in a shared daisy chain fashion to a single serial interface. In both cases, the peripheral devices are preferably assigned device addresses. If so, the serial controller circuitry must implement a method to generate or detect unique device addresses. General-purpose computer serial ports are not able to do this unique device addresses. General-purpose computer serial ports are not able to do this.

Security monitoring circuits detect intrusion into an IGT gaming machine by monitoring security switches attached to access doors in the slot machine cabinet. Preferably, access violations result in suspension of game play and can trigger additional security operations to preserve the current state of game play. These circuits also function when power is off by use of a battery backup. In power-off operation, these circuits continue to monitor the access doors of the slot machine. When power is restored, the gaming machine can determine whether any security violations occurred while power was off, e.g., via software for reading status registers. This can trigger event log entries and further data authentication operations by the slot machine software.

Trusted memory devices are preferably included in an IGT gaming machine computer to ensure the authenticity of the software that may be stored on less secure memory subsystems, such as mass storage devices. Trusted memory devices and controlling circuitry are typically designed to not allow modification of the code and data stored in the memory device while the memory device is installed in the slot machine. The code and data stored in these devices may include authentication algorithms, random number generators, authentication keys, operating system kernels, etc. The purpose of these trusted memory devices is to provide gaming regulatory authorities a root trusted authority within the computing environment of the slot machine that can be tracked and verified as original. This may be accomplished via removal of the trusted memory device from the slot machine computer and verification of the secure memory device contents is a separate third party verification device. Once the trusted memory device is verified as authentic, and based on the approval of the verification algorithms contained in the trusted device, the gaming machine is allowed to verify the authenticity of additional code and data that may be located in the gaming computer assembly, such as code and data stored on hard disk drives. A few details related to trusted memory devices that may be used in the present invention are described in U.S. Pat. No. 6,685,567 from U.S. patent application Ser. No. 09/925,098, filed Aug. 8, 2001 and titled “Process Verification,” which is incorporated herein in its entirety and for all purposes.

Mass storage devices used in a general purpose computer typically allow code and data to be read from and written to the mass storage device. In a gaming machine environment, modification of the gaming code stored on a mass storage device is strictly controlled and would only be allowed under specific maintenance type events with electronic and physical enablers required. Though this level of security could be provided by software, IGT gaming computers that include mass storage devices preferably include hardware level mass storage data protection circuitry that operates at the circuit level to monitor attempts to modify data on the mass storage device and will generate both software and hardware error triggers should a data modification be attempted without the proper electronic and physical enablers being present.

The player tracking units may implement auto-provisioning allowing the devices to self-register to a server such as the IGT Floor Control Server (FCS). The automatic provisioning capability allows a casino to shuffle machines around, add new ones, remove old ones, easily without paper work and (human) data-entry error with the current manual process. Tracking where the machines are and tracking what is their current configuration may also help managing these capital assets according to regulation requirements. This login-and-setup procedure may include registration with the Dynamic Host Configuration Protocol (DHCP) Server, the Network Time Protocol (NTP) server, the File Transfer Protocol (FTP) server, and the FCS server. Details of auto-provisioning methods are described in more detail with respect to FIGS. 12 and 13.

FIG. 9 is a block diagram of a multimedia board 900 for a player tracking unit of the present invention. The present invention is not limited to the multimedia board, which is presented for illustrative purposes only. The CPU 902 may be an x86 compatible system on a chip. The chip may also include MMX support, a CRT, a TFT video processor, an NTSC/PAL TV encoder, core logic, a Video Port (VIP) and a Super I/O block. MMX are multimedia instructions that have been built into some brands of micro-processors.

The multimedia board 900 may provide a number of video display functions. For instance, the board 900 may include a hardware video accelerator 910 for scaling, filtering and color space conversion. The board 900 may support a number of video interfaces, such as but not limited to, 1) a CRT-Interface (VGA), 2) a TFT-Interface, and 3) a TV-Interface (TV-Out). The TFT interface may support an LVDS (low-voltage differential signal) output 932 via the LCD port.

The display device 215 in this example is an LCD and is connected via the LCD port. The present invention may employ a variety of displays, which may require connections through a different port, such as the VGA port. The size of the display may be varied with the present invention. Displays that range from 4″ diameter to a 15″ diameter may be used.

In another embodiment, the controller module 1001 may execute one or more software applications allowing the player tracking unit to perform software maintenance. The software maintenance application 1024 may allow the controller module 1001 to determine versions software of currently in-use on the player tracking unit, login into a remote server and compare the versions of software with software versions available on the remote server and determine when an upgrade is needed. The software may be upgraded to fix errors and/or to add new features. When the controller module has determined an upgrade is needed the player tracking unit may be capable of downloading one or more software modules and automatically installing the software on the player tracking unit. The software maintenance may be triggered in response to many factors, such as but not limited to 1) in response to a time factor monitored by the player unit, such as checking for upgrades once a month or once a week, 2) in response to a command received from a remote server or 3) in response to an input received at the player tracking unit. The input received at the player tracking unit may be generated by an operator.

Gaming machines 702 and 704 can each include player tracking units 701 and 703, respectively. The player tracking units can each include a display and one or more input devices. The display can be an LCD display, a plasma display, a CRT, or the like. An input device included on a player tracking unit can be a touch screen interface, a wireless remote control in communication with the player tracking unit via a wireless interface, a key pad, selection buttons, an enter button, a microphone, or the like. In some applications, the input device can be a touch screen interface disposed between the player and the display. A player tracking unit can further include a player tracking controller that provides a Web browser. The Web browser can display web pages on the display of the player tracking unit. In some applications, the Web browser can include a scroll bar that allows a player to navigate through various portions of a Web page. Such scrolling functionality can be particularly useful on a small screen (i.e., on the order of about three inches in height), although various sizes of display screens can be used. Furthermore, the player tracking unit can include a processor that can digitally format program files, such as downloaded web pages, and the like, for output on the display.

If you want to buy a new monitor, you might wonder what kind of display technologies I should choose. In today’s market, there are two main types of computer monitors: TFT LCD monitors & IPS monitors.

The word TFT means Thin Film Transistor. It is the technology that is used in LCD displays.  We have additional resources if you would like to learn more about what is a TFT Display. This type of LCDs is also categorically referred to as an active-matrix LCD.

These LCDs can hold back some pixels while using other pixels so the LCD screen will be using a very minimum amount of energy to function (to modify the liquid crystal molecules between two electrodes). TFT LCDs have capacitors and transistors. These two elements play a key part in ensuring that the TFT display monitor functions by using a very small amount of energy while still generating vibrant, consistent images.

Industry nomenclature: TFT LCD panels or TFT screens can also be referred to as TN (Twisted Nematic) Type TFT displays or TN panels, or TN screen technology.

IPS (in-plane-switching) technology is like an improvement on the traditional TFT LCD display module in the sense that it has the same basic structure, but has more enhanced features and more widespread usability.

These LCD screens offer vibrant color, high contrast, and clear images at wide viewing angles. At a premium price. This technology is often used in high definition screens such as in gaming or entertainment.

Both TFT display and IPS display are active-matrix displays, neither can’t emit light on their own like OLED displays and have to be used with a back-light of white bright light to generate the picture. Newer panels utilize LED backlight (light-emitting diodes) to generate their light hence utilizing less power and requiring less depth by design. Neither TFT display nor IPS display can produce color, there is a layer of RGB (red, green, blue) color filter in each LCD pixels to produce the color consumers see. If you use a magnifier to inspect your monitor, you will see RGB color in each pixel. With an on/off switch and different level of brightness RGB, we can get many colors.

Winner. IPS TFT screens have around 0.3 milliseconds response time while TN TFT screens responds around 10 milliseconds which makes the latter unsuitable for gaming

Winner. the images that IPS displays create are much more pristine and original than that of the TFT screen. IPS displays do this by making the pixels function in a parallel way. Because of such placing, the pixels can reflect light in a better way, and because of that, you get a better image within the display.

Winner. While the TFT LCD has around 15% more power consumption vs IPS LCD, IPS has a lower transmittance which forces IPS displays to consume more power via backlights. TFT LCD helps battery life.

Normally, high-end products, such as Apple Mac computer monitors and Samsung mobile phones, generally use IPS panels. Some high-end TV and mobile phones even use AMOLED (Active Matrix Organic Light Emitting Diodes) displays. This cutting edge technology provides even better color reproduction, clear image quality, better color gamut, less power consumption when compared to LCD technology.

This kind of touch technology was first introduced by Steve Jobs in the first-generation iPhone. Of course, a TFT LCD display can always meet the basic needs at the most efficient price. An IPS display can make your monitor standing out.

FIG. 1 is a perspective view of a gaming machine 10 that incorporates the present invention. Machine 10 includes a display 12 that may be a thin film transistor (TFT) display, a liquid crystal display (LCD), a cathode ray tube (CRT), or any other type of display. A second display 14 provides game data or other information in addition to display 12. Display 14 may provide static information, such as an advertisement for the game, the rules of the game, pay tables, paylines, or other information, or may even display the main game or the bonus game along with display 12. Alternatively, the area for display 14 may be a display glass for conveying information about the game.

TFT LCD image retention we also call it "Burn-in". In CRT displays, this caused the phosphorus to be worn and the patterns to be burnt in to the display. But the term "burn in" is a bit misleading in LCD screen. There is no actual burning or heat involved. When you meet TFT LCD burn in problem, how do you solve it?

When driving the TFT LCD display pixels Continously, the slightly unbalanced AC will attract free ions to the pixels internal surface. Those ions act like an addition DC with the AC driving voltage.

Those burn-in fixers, screen fixer software may help. Once the Image Retention happened on a TFT, it may easy to appear again. So we need to take preventive actions to avoid burn in reappearing.

For normal white TFT LCD, white area presenting minimal drive, black area presenting maximum drive. Free ions inside the TFT may are attracted towards the black area (maximum drive area)