Sharp LQ104S1DG21 and LQ104S1LG21 LCD Displays

Below is a detailed comparison of the Sharp LQ104S1DG21 and LQ104S1LG21 LCD displays based on their technical specifications.

Sharp LQ104S1DG21 and LQ104S1LG21 LCD Displays

Sharp LQ104S1DG21 and LQ104S1LG21 LCD Displays

Feature LQ104S1DG21 LQ104S1LG21 Can they be interchanged?
Brand Sharp Sharp Yes
Model LQ104S1DG21 LQ104S1LG21 Yes
Panel Size 10.4 inch 10.4 inch Yes
Resolution 800 (RGB) x 600 (SVGA) 800 (RGB) x 600 (SVGA) Yes
Display Mode TN, Normally White, Transmissive TN, Normally White, Transmissive Yes
Active Area 211.2 x 158.4 mm 211.2 x 158.4 mm Yes
Outline Dimensions 243 x 175.8 x 11.5 mm 246.5 x 179.4 x 12 mm Slight difference
Brightness 300 cd/m² (Typ.) 350 cd/m² (Typ.) No (Brightness difference)
Contrast Ratio 300:1 (Typ.) 300:1 (Typ.) Yes
Display Colors 262K (6-bit) 262K (6-bit) Yes
Response Time 30 ms (Typ.) 10/25 ms (Typ.)(Tr/Td) No (Response time difference)
Viewing Angle (CR≥10) 70/70/50/70 (Typ.)(L/R/U/D) 70/70/40/70 (Typ.)(L/R/U/D) Slight difference
Lamp Type 2 pcs CCFL 2 pcs CCFL Yes
Signal Interface CMOS (1 ch, 6-bit) LVDS (1 ch, 6-bit), 20 pins No (Interface difference)
Input Voltage 3.3V (Typ.) 3.3V (Typ.) Yes
Operating Temp. Range -10 ~ 65 °C -10 ~ 70 °C Slight difference
Storage Temp. Range -30 ~ 80 °C -30 ~ 80 °C Yes
Weight Approx. 330g Approx. 340g Yes

Analysis and Conclusion

Both Sharp LQ104S1DG21 and LQ104S1LG21 displays are similar in many key aspects, such as panel size, resolution, display mode, active area, contrast ratio, display colors, lamp type, and input voltage. These similarities indicate that they can potentially be interchanged for basic display needs where these parameters are crucial.

However, there are important differences that affect their interchangeability for specific applications:

  1. Brightness: The LQ104S1LG21 has a higher brightness (350 cd/m²) compared to the LQ104S1DG21 (300 cd/m²). This makes the LQ104S1LG21 more suitable for environments where higher brightness is required.
  2. Response Time: The LQ104S1LG21 offers a faster response time (10/25 ms) compared to the LQ104S1DG21 (30 ms). Applications that demand quick screen updates, such as video playback or interactive displays, will benefit more from the LQ104S1LG21.
  3. Signal Interface: The LQ104S1DG21 uses a CMOS interface, while the LQ104S1LG21 uses an LVDS interface with 20 pins. This difference in signal interface can be critical depending on the compatibility with the existing system or hardware.
  4. Outline Dimensions: There is a slight difference in the outline dimensions, with the LQ104S1LG21 being slightly larger and thicker. This could be relevant for applications where precise fitting within a specific space is required.
  5. Operating Temperature Range: The LQ104S1LG21 has a slightly wider operating temperature range (-10 to 70 °C) compared to the LQ104S1DG21 (-10 to 65 °C). This gives the LQ104S1LG21 an advantage in environments with higher temperature variations.

Final Thoughts

While the Sharp LQ104S1DG21 and LQ104S1LG21 displays can be interchanged in many standard applications, specific differences in brightness, response time, signal interface, and operating temperature range need to be considered. The LQ104S1LG21, with its higher brightness, faster response time, and broader operating temperature range, is more suitable for demanding applications.


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