LCD Drivers

How does LCD (Liquid Crystal Display) driver work?

LCD is an array of liquid crystal segments. When not in an electrical field, crystals are organized in a random pattern, however, once the electric field is applied, the crystals align to the field. For driving a light through the aligned crystal field a light source is needed.

Passive and Active LCD Displays, what is the difference?

Passive LCD panels or STN LCDs consists of a grid of row and columns electrical signals. There is no charge stored at the segment and it may take multiple passes to correctly align the field to the desired value.

Active LCD drivers or TFT displays columns and rows are multiplexed to many different segments. The charge is stored at the transistor. One pass will set the aligned state of the transistor. A stronger backlight is needed than for a passive display.

Advantages of LCD displays
• LCD displays produce bright images because of their high peak intensity and they are suitable for environments that are brightly lit
• The durability of 50 thousand - 100 thousand hours
• Almost every industry uses them: military, consumer, medical, automotive, industrial and marine

Before you choose an LCD Driver, consider the requirements of your application and which types of displays are available to buy. With the right selection, RS Components can help to create the perfect LCD display module for your product.
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Part Details Brand Number of Digits Number of Segments Maximum Clock Frequency Maximum Supply Current Mounting Type Package Type Pin Count Typical Operating Supply Voltage Dimensions Height Width Length Maximum Operating Temperature Minimum Operating Temperature
BU9799KV-E2, LCD Driver 200-Segments, 2.5 → 5.5 V, 64-Pin VQFP
  • RS Stock No. 185-0968
  • Brand ROHM
  • Mfr. Part No. BU9799KV-E2
ROHM - 200 104Hz 20 μA Surface Mount VQFP 64 2.5 → 5.5 V 10 x 10 x 1.4mm 1.4mm 10mm 10mm +85 °C -40 °C
BU9799KV-E2, LCD Driver 200-Segments, 2.5 → 5.5 V, 64-Pin VQFP
  • £ 0.885
  • Each (On a Reel of 1000)
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  • RS Stock No. 185-0965
  • Brand ROHM
  • Mfr. Part No. BU9799KV-E2
ROHM - 200 104Hz 20 μA Surface Mount VQFP 64 2.5 → 5.5 V 10 x 10 x 1.4mm 1.4mm 10mm 10mm +85 °C -40 °C
LCD Driver 112-Segments, 1.8 → 3.6 V, 2.7 → 5.5 (LCD) V, 40-Pin SSOP
  • RS Stock No. 185-0964
  • Brand ROHM
  • Mfr. Part No. BU97931FV-E2
ROHM - 112 - 48 μA Surface Mount SSOP 40 1.8 → 3.6 V, 2.7 → 5.5 (LCD) V 13.6 x 5.4 x 1.8mm 1.8mm 5.4mm 13.6mm +85 °C -40 °C
LCD Driver 112-Segments, 1.8 → 3.6 V, 2.7 → 5.5 (LCD) V, 40-Pin SSOP
  • RS Stock No. 185-1036
  • Brand ROHM
  • Mfr. Part No. BU97931FV-E2
ROHM - 112 - 48 μA Surface Mount SSOP 40 1.8 → 3.6 V, 2.7 → 5.5 (LCD) V 13.6 x 5.4 x 1.8mm 1.8mm 5.4mm 13.6mm +85 °C -40 °C
AY0438-I/L, LCD Driver, 4-Digits 32-Segments, 3 → 8.5 V, 44-Pin PLCC Microchip 4 32 1.5MHz 60 μA Surface Mount PLCC 44 3 → 8.5 V 0.656 x 0.656 x 0.083in 2.11mm 0.656in 16.66mm +85 °C -40 °C
AY0438/P, LCD Driver, 4-Digits 32-Segments, 3 → 8.5 V, 40-Pin PDIP Microchip 4 32 1.5MHz 60 μA Through Hole PDIP 40 3 → 8.5 V 2.095 x 0.58 x 0.195in 4.95mm 0.58in 53.21mm +70 °C 0 °C
ICM7211AMIPLZ, LCD Driver, 4-Digits 28-Segments, 5 V, 40-Pin PDIP Renesas Electronics 4 28 0.019MHz 0.05 mA Through Hole PDIP 40 5 V 53.2 x 14.73 x 4.95mm 4.95mm 14.73mm 53.2mm +85 °C -40 °C
TPS65150PWP, LCD Driver, 1.8 → 6 V, 24-Pin HTSSOP Texas Instruments - - 1.38MHz - Surface Mount HTSSOP 24 1.8 → 6 V 7.9 x 4.5 x 1.05mm 1.05mm 4.5mm 7.9mm +85 °C -40 °C
MAX749CSA+, LCD Driver, 8-Pin SOIC Maxim - - - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 4mm 5mm +70 °C 0 °C
AY0438/P, LCD Driver, 4-Digits 32-Segments, 3 to 8.5 V, 40-Pin PDIP Microchip 4 32 1.5MHz 60 μA Through Hole PDIP 40 3 to 8.5 V 2.095 x 0.58 x 0.195in 4.95mm 0.58in 53.21mm +70 °C 0 °C
CP2402-GM, LCD Driver 64-Segments, 3.3 V, 32-Pin TQFN Silicon Labs - 64 25MHz 0.79 mA Surface Mount TQFN 32 3.3 V 5 x 5 x 1.05mm 1.05mm 5mm 5mm +85 °C -40 °C
3Gbps HD/SD SDI Cable Driver LLP16 EP Texas Instruments - - - - - - - - - - - - - -
AD9887AKSZ-140, LCD Driver, 3.3 V, 160-Pin MQFP Analog Devices - - 170MHz 46 mA Surface Mount MQFP 160 3.3 V 28.2 x 28.2 x 3.6mm 3.6mm 28.2mm 28.2mm +70 °C 0 °C
AY0438-I/P, LCD Driver, 4-Digits 32-Segments, 3 to 8.5 V, 40-Pin PDIP Microchip 4 32 1.5MHz 60 μA Through Hole PDIP 40 3 to 8.5 V 2.07 x 0.557 x 0.205in 5.21mm 0.557in 52.58mm +85 °C -40 °C
ICM7211AIPL+, LCD Driver, 4-Digits 28-Segments, 5 V, 40-Pin PDIP
  • RS Stock No. 151-818
  • Brand Maxim
  • Mfr. Part No. ICM7211AIPL+
Maxim 4 28 0.016MHz - Through Hole PDIP 40 5 V 52.58 x 13.97 x 3.81mm 3.81mm 13.97mm 52.58mm +85 °C -20 °C
LCD Driver, 4.5-Digits 32-Segments, 3 → 10 V, 44-Pin PLCC Texas Instruments 4.5 32 1MHz 40 μA Surface Mount PLCC 44 3 → 10 V 16.66 x 16.66 x 4.06mm 4.06mm 16.66mm 16.66mm +85 °C -40 °C
AY0438-I/L, LCD Driver, 4-Digits 32-Segments, 3 to 8.5 V, 44-Pin PLCC Microchip 4 32 1.5MHz 60 μA Surface Mount PLCC 44 3 to 8.5 V 0.656 x 0.656 x 0.083in 2.11mm 0.656in 16.66mm +85 °C -40 °C
AD9880KSTZ-150, LCD Driver, 3.3 V, 100-Pin LQFP Analog Devices - - 150MHz 330 mA Surface Mount LQFP 100 3.3 V 14 x 14 x 1.45mm 1.45mm 14mm 14mm +70 °C 0 °C
MM5452N/NOPB, LCD Driver, 4.5-Digits 32-Segments, 3 → 10 V, 40-Pin PDIP Texas Instruments 4.5 32 1MHz 0.04 mA Through Hole PDIP 40 3 → 10 V 52.58 x 14.73 x 5.334mm 5.334mm 14.73mm 52.58mm +85 °C -40 °C
3Gbps HD/SD SDI Cable Driver LLP16 EP Texas Instruments - - - - - - - - - - - - - -
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