Toshiba LTM15C458T 15 Inch TFT LCD Panel

The Toshiba LTM15C458T is a 15.0-inch industrial color TFT-LCD module designed for systems requiring a 1024 × 768 XGA display. It uses a-Si TFT-LCD technology with a TN, Normally White, Transmissive display configuration and a conventional 4:3 format. The panel has a 304.128 × 228.096 mm active display area and a 0.297 × 0.297 mm pixel pitch.

The LTM15C458T supports 8-bit display data using a 6-bit + FRC configuration and a single-channel LVDS interface. It is designed with a wide viewing angle, with the original Toshiba documentation specifying a combined viewing range of approximately 140° vertically and 160° horizontally. The panel supports 16.19 million colors.

The display uses a 3.3V LCD supply and a 20-pin LVDS interface. Its original backlight consists of four CCFL lamps in a sidelight configuration, requiring an appropriate external CCFL inverter. The module measures approximately 331.6 × 254.7 × 13.5 mm and weighs approximately 1.21 kg.

The LTM15C458T is suitable for compatible industrial monitors, industrial PCs, HMI systems, machine interfaces, instrumentation, control equipment, and legacy systems using the same XGA, LVDS, and CCFL configuration. Because this is a legacy LCD module, complete electrical and mechanical compatibility should be verified before using it as a replacement.

Key Features

• Toshiba LTM15C458T TFT-LCD module
• 15.0-inch display
• 1024 × 768 XGA resolution
• 4:3 aspect ratio
• a-Si TFT-LCD technology
• TN, Normally White, Transmissive display mode
• 304.128 × 228.096 mm active area
• 0.297 × 0.297 mm pixel pitch
• 8-bit data signal using 6-bit + FRC
• Single-channel LVDS interface
• 20-pin LVDS connector
• 3.3V typical LCD supply
• 16.19 million colors
• Wide viewing angle
• 350 cd/m² typical brightness
• 400:1 typical contrast ratio
• Four CCFL backlight lamps
• Sidelight-type backlight configuration
• External CCFL inverter required
• Approximately 50,000-hour CCFL lamp life according to available references
• Landscape orientation
• Approximately 1.21 kg weight
• 0°C to +50°C operating temperature

Technical Specifications

The original Toshiba documentation identifies the panel as a 15.0-inch XGA module with 331.6 × 254.7 × 13.5 mm dimensions, 304.128 × 228.096 mm active area, 4-CCFL backlight, 3.3V supply and 1-channel LVDS interface.

Available commercial references list 350 cd/m² brightness, 400:1 contrast, 20-pin 8-bit LVDS and approximately 50,000-hour CCFL lamp life.

15 Inch 1024 × 768 XGA Display

The Toshiba LTM15C458T features a 15.0-inch diagonal display with a 1024 × 768 XGA resolution. Its 304.128 × 228.096 mm active area provides the traditional 4:3 display format used extensively in industrial computers, machine interfaces, control systems and legacy monitoring equipment.

With approximately 85 PPI, the display is suitable for showing machine parameters, numerical values, menus, alarms, status information, measurement data and graphical operator interfaces.

For replacement applications, the XGA resolution and 15-inch size should only be treated as part of the compatibility assessment. The active area, overall dimensions, mounting arrangement, LVDS configuration, pinout, supply voltage and CCFL backlight system must also match the target equipment.

Display Technology

The LTM15C458T uses amorphous silicon TFT-LCD technology with a TN, Normally White, Transmissive display configuration. The panel uses an RGB vertical stripe pixel arrangement.

The display uses an 8-bit data configuration based on 6-bit + FRC processing and a single-channel LVDS interface. This configuration is important when matching the panel with an existing industrial display controller.

A different 15-inch XGA panel may use a different TFT technology, color configuration or LVDS implementation. Therefore, screen size and resolution alone should not be used to determine replacement compatibility.

Brightness and Contrast

Available technical references specify approximately 350 cd/m² typical brightness and a 400:1 typical contrast ratio for the LTM15C458T.

The original Toshiba documentation specifies a wide viewing range of approximately 160° horizontally and 140° vertically. This makes the panel suitable for applications where the operator may not always view the display directly from the center.

The actual viewing experience can vary depending on installation angle, ambient lighting and the characteristics of the equipment in which the LCD is installed.

Interface and Connector

The LTM15C458T uses a single-channel LVDS interface with an 8-bit data configuration. The LCD operates from a typical 3.3V supply. Available technical references identify a 20-pin LVDS connection.

The Toshiba documentation identifies the LCD interface connector as a Hirose DF14H-20P-1.25H, with the corresponding mating connector specified as DF14-20S-1.25C.

The complete pinout should be checked before connecting the panel. A 20-pin connector does not automatically mean that another 20-pin LCD is compatible.

Before installation, verify:

• Complete connector pinout
• LVDS signal assignment
• Single-channel configuration
• 8-bit or 6-bit + FRC configuration
• LCD supply voltage
• Connector orientation
• Display timing
• Controller compatibility

Backlight

The LTM15C458T uses four CCFL lamps in a sidelight-type backlight configuration. The original Toshiba documentation identifies four CCFL lamps and specifies a typical lamp voltage of approximately 690V RMS at 6.0 mA RMS.

The CCFL backlight requires suitable external inverter circuitry. The inverter is not simply interchangeable with an LED backlight driver, so the original equipment's inverter specifications should be checked before installation.

Available technical references indicate a backlight life of approximately 50,000 hours for the CCFL lamps.

Because the LTM15C458T uses CCFL technology, it should not be considered automatically interchangeable with a modern LED-backlit 15-inch XGA LCD.

Mechanical Dimensions

The LTM15C458T has an active display area of 304.128 × 228.096 mm. The module's typical outline dimensions are 331.6 × 254.7 mm, with a maximum depth of approximately 13.5 mm. Its approximate weight is 1.21 kg.

These dimensions are important when replacing a display inside an existing enclosure. Before installation, compare:

• Overall width
• Overall height
• Panel thickness
• Active display area
• Bezel opening
• Mounting-hole positions
• Connector location
• CCFL cable routing
• Rear clearance
• Inverter mounting space

A different 15-inch XGA LCD may have the same resolution but different mechanical dimensions or mounting points.

Operating Temperature

The LTM15C458T is specified for an operating temperature range of 0°C to +50°C and a storage temperature range of -20°C to +60°C.

These specifications apply to the LCD module. The controller, CCFL inverter, power supply, cables and equipment enclosure may have different environmental limitations.

For equipment operating close to the specified temperature limits, the complete display assembly should be evaluated according to the specifications of each component.

Industrial Applications

The LTM15C458T is a 15-inch XGA TFT-LCD module with a single-channel LVDS interface and four-CCFL backlight system. Its specifications make it particularly relevant for legacy equipment designed around this display configuration.

Potential applications include:

• Industrial PCs
• HMI systems
• CNC machine interfaces
• Industrial control panels
• Factory automation equipment
• Machine monitoring systems
• Process control equipment
• Industrial instrumentation
• Measuring equipment
• Embedded computing systems
• Operator interface terminals
• Control and monitoring equipment
• Legacy industrial machinery
• Industrial monitors

The actual application suitability depends on the electrical, mechanical, environmental, controller and backlight requirements of the target equipment.

Compatibility and Replacement Note

The Toshiba LTM15C458T should be selected as a replacement only after comparing its complete specifications with the original LCD.

Before purchasing or installing the panel, verify:

• Exact original LCD model and suffix
• 15.0-inch screen size
• 1024 × 768 resolution
• Active display area
• Overall dimensions
• Panel thickness
• Mounting holes and mounting arrangement
• Connector type and location
• 20-pin connector configuration
• Complete LVDS pinout
• Single-channel LVDS configuration
• 8-bit or 6-bit + FRC configuration
• Display timing requirements
• 3.3V supply requirement
• CCFL backlight configuration
• Four-lamp configuration
• CCFL inverter compatibility
• Lamp voltage and current requirements
• Controller compatibility
• Operating temperature requirements
• Mechanical clearance

A similar 15-inch size, 1024 × 768 resolution, or 20-pin connector does not automatically mean another LCD is a direct replacement.

Connector type alone is not sufficient to establish compatibility. The exact model and suffix, dimensions, mounting, pinout, interface, voltage, timing, backlight, inverter and controller compatibility should all be verified.

This is particularly important for the LTM15C458T because it combines a single-channel LVDS interface with a legacy four-CCFL backlight system. A newer LED-backlit or differently configured LVDS panel may require substantial changes to the equipment.

Product Details

Product: Toshiba LTM15C458T LCD Panel
Brand: Toshiba
Model: LTM15C458T
Display Size: 15.0 inches
Resolution: 1024 × 768 pixels, XGA
Panel Type: a-Si TFT-LCD
Display Type: Color TFT-LCD Module
Display Mode: TN, Normally White, Transmissive
Interface: LVDS, 1 channel, 8-bit
Connector: 20-pin
Brightness: 350 cd/m² typical
Contrast Ratio: 400:1 typical
Supply Voltage: 3.3V typical
Backlight: 4 × CCFL
Backlight Life: Approximately 50,000 hours according to available references
Backlight Driver: External CCFL inverter required
Operating Temperature: 0°C to +50°C
Storage Temperature: -20°C to +60°C
Touch Screen: Not specified
Condition: Not specified
Warranty: Not specified

Handling and Installation Precautions

The LTM15C458T contains delicate LCD glass, polarizer material, driver electronics and high-voltage CCFL backlight components. Careful handling is required during installation.

• Avoid applying pressure directly to the LCD glass.
• Do not scratch or damage the front polarizer.
• Keep sharp tools and hard objects away from the display surface.
• Power off the equipment before connecting or disconnecting the LCD.
• Handle the 20-pin LVDS connector carefully.
• Do not force the connector into position.
• Verify the complete LVDS pinout before applying power.
• Confirm the required 3.3V LCD supply.
• Verify LVDS signal mapping and display timing.
• Confirm the four-CCFL backlight configuration.
• Use an appropriate CCFL inverter for the panel.
• Verify CCFL lamp voltage and current requirements.
• Do not connect or disconnect the CCFL backlight while power is applied.
• Be aware that CCFL inverter circuits operate at high voltage.
• Follow appropriate ESD precautions when handling the module.
• Keep the LCD away from moisture.
• Avoid dropping, bending, twisting or striking the panel.
• Do not apply excessive pressure to the rear circuit board.
• Protect the LVDS and backlight cables from excessive bending.
• Do not attempt to modify the LCD module unnecessarily.
• Provide sufficient clearance for the connectors and CCFL cables.
• Confirm that the equipment operates within the specified temperature range.

Frequently Asked Questions

What is the Toshiba LTM15C458T?

The Toshiba LTM15C458T is a 15.0-inch color a-Si TFT-LCD module with a 1024 × 768 XGA resolution, TN Normally White Transmissive display mode, single-channel LVDS interface and four-CCFL backlight system.

What is the resolution of the LTM15C458T?

The LTM15C458T has a 1024 × 768 pixel XGA resolution.

What is the screen size of the LTM15C458T?

The Toshiba LTM15C458T has a 15.0-inch diagonal display with a 304.128 × 228.096 mm active display area.

What type of display is the LTM15C458T?

It is an a-Si TFT-LCD using a TN, Normally White, Transmissive display configuration.

What is the brightness of the LTM15C458T?

Available technical references specify a typical brightness of approximately 350 cd/m².

What is the contrast ratio of the LTM15C458T?

The typical contrast ratio is 400:1.

What interface does the LTM15C458T use?

The LTM15C458T uses a single-channel LVDS interface with an 8-bit data configuration based on 6-bit + FRC.

How many pins does the LTM15C458T connector have?

The display uses a 20-pin LVDS connector. The Toshiba documentation identifies the interface connector as a Hirose DF14H-20P-1.25H.

What type of backlight does the LTM15C458T use?

The LTM15C458T uses four CCFL lamps in a sidelight-type backlight configuration. It requires a suitable external CCFL inverter.

Does the LTM15C458T have a touchscreen?

The standard LTM15C458T specification does not identify an integrated touchscreen. It is supplied as an LCD module.

What are the dimensions of the LTM15C458T?

The typical module dimensions are approximately 331.6 × 254.7 × 13.5 mm. The active display area is 304.128 × 228.096 mm and the approximate module weight is 1.21 kg.

What is the operating temperature of the LTM15C458T?

The specified operating temperature is 0°C to +50°C, while the storage temperature range is -20°C to +60°C.

Can the LTM15C458T be used as a replacement LCD?

It can be considered for compatible equipment requiring a 15-inch 1024 × 768 TFT-LCD with a single-channel LVDS interface and four-CCFL backlight. Before installation, verify the exact model and suffix, dimensions, mounting, 20-pin pinout, 3.3V supply, display timing, CCFL inverter and lamp requirements, and controller compatibility. A similar screen size, resolution or connector does not automatically guarantee direct compatibility.