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LG Display models LB121S03-TL01 and LB121S03-TL04

Posted on: 04/12/2025

detailed comparison between the LG Display models LB121S03-TL01 and LB121S03-TL04 to assess their parameters and determine if they can be directly substituted for one another.

Comparison Table

Feature LB121S03-TL01 LB121S03-TL04
Manufacturer LG Display LG Display
Display Type a-Si TFT-LCD a-Si TFT-LCD
Screen Size 12.1 inches 12.1 inches
Resolution 800 x 600 (SVGA) 800 x 600 (SVGA)
Pixel Pitch 0.3075 mm x 0.3075 mm 0.3075 mm x 0.3075 mm
Pixel Format RGB Vertical Stripe RGB Vertical Stripe
Active Area 246 mm x 184.5 mm 246 mm x 184.5 mm
Bezel Opening 249 mm x 188.3 mm 249 mm x 188.3 mm
Brightness 200 cd/m² 200 cd/m²
Contrast Ratio 400:1 400:1
Viewing Angle 80°/80°/80°/80° (U/D/L/R) 80°/80°/80°/80° (U/D/L/R)
Response Time 25 ms 30 ms
Backlight CCFL WLED
Backlight Lifetime 20,000 hours 20,000 hours
Operating Temperature 0°C to 60°C -10°C to 70°C
Storage Temperature -20°C to 70°C -30°C to 80°C
Power Consumption 6.1 W 5.8 W
Weight 510 g 520 g
Surface Treatment Anti-Glare Anti-Glare
Signal Interface LVDS LVDS

Analysis

Key Similarities:

  • Both displays have the same screen size (12.1 inches) and resolution (800 x 600 SVGA).
  • The pixel pitch, pixel format, and active area are identical for both models.
  • Brightness, contrast ratio, viewing angles, and surface treatment are the same.
  • Both use an LVDS signal interface.

Key Differences:

  • Backlight Type: The TL01 uses a CCFL backlight, whereas the TL04 uses a WLED backlight.
  • Response Time: The TL01 has a faster response time of 25 ms compared to 30 ms for the TL04.
  • Operating and Storage Temperature: The TL04 offers a broader operating temperature range (-10°C to 70°C) and storage temperature range (-30°C to 80°C) compared to the TL01.
  • Power Consumption: The TL04 is slightly more power-efficient, consuming 5.8 W compared to the TL01’s 6.1 W.
  • Weight: The TL04 is slightly heavier (520 g) than the TL01 (510 g).

Substitution Potential

The LB121S03-TL04 can generally substitute for the LB121S03-TL01, given their similarities in dimensions, resolution, and interface. However, several considerations should be taken into account:

  • Backlight Type: Substitution may require adjustments to the power supply or backlight driver due to the different backlight types (CCFL vs. WLED).
  • Operating Conditions: The TL04 has a wider operating and storage temperature range, which may be beneficial or necessary depending on the environment.
  • Power Efficiency: The TL04’s slightly lower power consumption could be advantageous in power-sensitive applications.

In conclusion, the LB121S03-TL04 can replace the LB121S03-TL01 with careful consideration of the differences in backlight type and operating conditions. Both models are no longer in production, so availability might also influence the substitution decision.