LS070I25-R-V1: 7.0-inch TFT LCD Module, 1024×600, TTL Interface, 16.7M Colors, Transmissive TFT
Product Subtitle / Keywords
7.0 Inch Display, 1024(RGB)×600 Resolution, Transmissive a-Si TFT-LCD Module, COG+FPC+B/L Module Type, TTL (24-bit RGB) Interface, 16.7M Colors (8-bit), Display Mode: Normally Black, Module Size (H×V×D): 164.9 × 100.0 × 3.5 mm, Active Area (H×V): 154.21 × 85.92 mm, Pixel Pitch: 0.0502(H) × 0.1432(V) mm, Operating Temp: -20°C ~ +70°C (Note: Storage temp not explicitly stated in spec table), Backlight: White LED (27 lamps), Viewing Direction: Full Viewing (IPS/VA), NTSC: 50% (Typ.), Contrast Ratio: 800 (Typ.), Luminance: 350 cd/m² (Typ.), Surface Treatment: AG (Anti-Glare), Driver IC: JD9165BA (from diagram), Interface: TTL, RoHS Compliant, Product Version 1.0 (First Release on 2024-06-05, revised to V1 on 2024-07-29)
1. Executive Summary And Product Positioning
The LS070I25-R-V1 is a 7.0-inch diagonal transmissive type a-Si TFT-LCD (amorphous silicon thin film transistor liquid crystal display) module, manufactured by Lesson (Wanan) Smart Display Technology Co., Ltd. This comprehensive module integrates a TFT-LCD panel, a driver circuit, and a backlight unit (B/L) into a single package. The product specification (Version 1.0, revised on 2024-07-29) serves as the definitive technical document for this module.
This module features a resolution of 1024(RGB)×600 pixels (WSVGA) and is capable of displaying up to 16.7M colors (8-bit). The module uses a TTL (24-bit RGB) parallel interface and is driven by the JD9165BA driver IC. The module incorporates a BOE Cell.
2. Detailed Product Overview And Architecture
The LS070I25-R-V1 is a 7.0-inch TFT display. Its architecture is built around several key elements:
- Core Technology: Transmissive type a-Si TFT-LCD. The display mode is Normally Black.
- Module Type: COG (Chip-On-Glass) + FPC (Flexible Printed Circuit) + B/L (Backlight). The module uses a BOE Cell.
- Display Format: Graphic 1024(RGB)×600 Dot-matrix (WSVGA).
- Display Characteristics: Capable of displaying up to 16.7M colors (8-bit per primary color).
- Interface Type: TTL (24-bit RGB) interface. The pinout includes HS, VS, DE, DCLK, and 24-bit data lines (R0~R7, G0~G7, B0~B7).
- Main LCD Driver IC: The module integrates the JD9165BA driver IC.
- Backlight Unit: The module utilizes a white LED backlight comprised of 27 lamps. The driving condition is IF=180mA and VF=9.9V (Typ.). The diagram shows a 3串9并 (3 series, 9 parallel) configuration: 3*3.3=9.9V(MAX), 20*9=180mA.
- Display Mode: Transmissive, Normally Black.
- View Direction: Full Viewing (IPS).
- Surface Treatment: AG (Anti-Glare).
- Approval Status: Tentative Specification.
3. Technical Specifications
3.1 General & Mechanical Specification
| Parameter | Specification | Unit |
|---|---|---|
| LCD size | 7.0 | inch |
| Resolution | 1024(RGB)X600 | - |
| Display mode | Normally Black | - |
| Pixel pitch | 0.0502(H) X RGB X 0.1432(V) | mm |
| Active area | 154.21(H)X85.92 (V) | mm |
| Module size | 164.9 (H)X100.00(V)X3.5(T) | mm |
| Pixel arrangement | RGB-stripe | - |
| Surface Treatment | AG | - |
| Interface | TTL | - |
| Viewing Direction | Full Viewing | - |
| NTSC | 50% (Typ.) | % |
| Backlight | White LED | - |
| Panel power consumption | TBD | - |
| Module Weight | TBD | - |
3.2 Absolute Maximum Ratings
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Supply power voltage | VDD | -0.3 | 4.0 | V |
| I/O supply voltage | VDDIO | -0.3 | 4.0 | V |
| AVDD voltage | AVDD | -0.3 | 12.0 | V |
| Gate On Power Supply Voltage | VGH | -0.3 | 25.0 | V |
| Gate Off Power Supply Voltage | VGL | -12.0 | 0.3 | V |
| Operating Temperature | TOPR | -20 | 70 | °C |
| Storage Temperature | TSTG | -30 | 80 | °C |
3.3 Typical Operation Conditions
The document does not provide a separate table for typical operating conditions. The values below are extracted from the specification tables and diagrams.
| Parameter | Symbol | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Supply power voltage | VDD | 3.0 | 3.3 | 3.6 | V |
| I/O power voltage | VDDIO | 3.0 | 3.3 | 3.3 | V |
| AVDD input power | AVDD | 9 | 10 | 11 | V |
| Gate On Power Supply Voltage | VGH | 18 | 19 | 20 | V |
| Gate Off Power Supply Voltage | VGL | -8.5 | -8 | -7.5 | V |
| Common Power Supply Voltage | VCOM | 2.7 | 3.8 | 4.94 | V |
3.4 Backlight Driving Conditions
The backlight circuit is configured as 3串9并 (3 series, 9 parallel). The backlight driving condition is IF=180mA, VF=9.9V (Typ.).
| Parameter | Symbol | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Backlight Voltage | V_LED | - | 9.9 | - | V |
| Backlight Current | I_LED | - | 180 | - | mA |
Note: The optical measurements are taken at I_LED=120mA.
3.5 Interface Connection (TTL, 50-pin FPC)
The module uses a 50-pin FPC connector for the TTL interface. The pin assignment is as follows:
| Pin No. | Symbol | Description | Remark |
|---|---|---|---|
| 1, 2 | LEDA | LED anode | |
| 3, 4 | LEDK | LED cathode | |
| 5 | GND | Ground | |
| 6 | VCOM | Common Voltage | |
| 7 | DVDD | Power for Digital Circuit (3.3V) | |
| 8 | MODE | DE/SYNC mode select | |
| 9 | DE | Data Input Enable | |
| 10 | VS | Vertical Sync Input | |
| 11 | HS | Horizontal Sync Input | |
| 12 | B7 | Blue data | |
| 13 | B6 | Blue data | |
| 14 | B5 | Blue data | |
| 15 | B4 | Blue data | |
| 16 | B3 | Blue data | |
| 17 | B2 | Blue data | |
| 18 | B1 | Blue data | |
| 19 | B0 | Blue data | |
| 20 | G7 | Green data | |
| 21 | G6 | Green data | |
| 22 | G5 | Green data | |
| 23 | G4 | Green data | |
| 24 | G3 | Green data | |
| 25 | G2 | Green data | |
| 26 | G1 | Green data | |
| 27 | G0 | Green data | |
| 28 | R7 | Red data | |
| 29 | R6 | Red data | |
| 30 | R5 | Red data | |
| 31 | R4 | Red data | |
| 32 | R3 | Red data | |
| 33 | R2 | Red data | |
| 34 | R1 | Red data | |
| 35 | R0 | Red data | |
| 36 | GND | Ground | |
| 37 | DCLK | Sample clock | |
| 38 | GND | Ground | |
| 39 | L/R | Left / right selection | |
| 40 | U/D | Up/down selection | |
| 41 | VGH | Gate ON Voltage | |
| 42 | VGL | Gate OFF Voltage | |
| 43 | AVDD | Power for Analog Circuit | |
| 44 | RESET | Global reset pin | Note 6 |
| 45 | NC | No connection | |
| 46 | VCOM | Common Voltage | |
| 47 | DITHB | Dithering function control | Note 7 |
| 48 | GND | Power Ground | |
| 49 | NC | No connection | |
| 50 | NC | No connection |
Note 4: Selection of scanning mode is controlled by U/D and L/R pins.
Note 6: Global reset pin. Active low to enter reset state. Suggest to connect with an RC reset circuit for stability. Normally pull high.
Note 7: Dithering function enable control, normally pull high. When DITHB="0", Disable internal dithering function; when DITHB="1", Enable internal dithering function.
3.6 Timing Characteristics (Horizontal & Vertical)
The specification provides timing parameters for both DE mode and SYNC mode.
DE Mode Timing
| Parameter | Symbol | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Frame Rate | - | - | 60 | - | Hz |
| Clock frequency | 1/Tclock | 40.8 | 51.2 | 67.2 | MHz |
| Horizontal Period | Th | 1114 | 1344 | 1400 | Tclock |
| Horizontal Active | Thdisp | 1024 | 1024 | 1024 | Tclock |
| Horizontal Front Porch | Thfp | 30 | 160 | 216 | Tclock |
| Horizontal Back Porch | Thbp | 60 | 160 | 160 | Tclock |
| Horizontal Sync Width | Ths | 1 | 24 | HBP-1 | Tclock |
| Vertical Period | Tv | 610 | 635 | 800 | Tline |
| Vertical Active | Tvdisp | 600 | 600 | 600 | Tline |
| Vertical Front Porch | Tvfp | 2 | 12 | 100 | Tline |
| Vertical Back Porch | Tvbp | 8 | 23 | 100 | Tline |
| Vertical Sync Width | Tvs | 1 | 2 | VBP-1 | Tline |
3.7 Optical Specifications
| Item | Symbol | Condition | Min. | Typ. | Max. | Unit | Remark |
|---|---|---|---|---|---|---|---|
| Contrast Ratio | CR | - | - | 800 | - | - | Note 1, Note 4 |
| Luminance (Center) | L | - | - | 350 | - | cd/m² | Note 1, Note 6, Note 7 |
| Luminance Uniformity (9P) | LU | - | 75 | - | - | % | |
| Color Gamut | - | - | 50 | - | 50 | % | |
| Response Time | Tr+Tf | - | - | 30 | 40 | ms | Note 3 |
| White Chromaticity | x | Typ-0.05 | - | 0.31 | Typ+0.05 | - | Note 5 |
| White Chromaticity | y | Typ-0.05 | - | 0.33 | Typ+0.05 | - | Note 5 |
| Viewing Angle (Horizontal) | θL, θR | CR≥10 | - | 85 | - | Deg. | Note 2 |
| Viewing Angle (Vertical) | θT, θB | CR≥10 | - | 85 | - | Deg. | Note 2 |
Note 7: Definition of Luminance Uniformity: Active area is divided into 9 measuring areas. Every measuring point is placed at the center of each measuring area.
3.8 Reliability Test Items
| Item | Test Conditions | Remark |
|---|---|---|
| High Temperature Storage | Ta = 70°C, 48 hrs | |
| Low Temperature Storage | Ta = -20°C, 48 hrs | |
| High Temperature Operation | Ts = 60°C, 48 hrs | |
| Low Temperature Operation | Ta = -10°C, 48 hrs | |
| Operate at High Temperature and Humidity | 60°C, 90%RH max., 48 hrs | Operation |
| Thermal Shock | -20°C ~ +60°C, 10 cycles, 1 Hrs/cycle | Non-operation |
| Electrostatic Discharge | Contact=±4KV, class B; Air=±8KV, class B | |
| Image Sticking | 25°C; 1hrs | Note 3 |
4. Application Scenario (Based on Spec)
Based on the product specification, this module is a standard 7.0-inch WSVGA TFT display suitable for general industrial and embedded applications requiring a high-resolution color display with a standard TTL interface. The AG (Anti-Glare) surface treatment makes it suitable for environments where ambient light may cause reflections.
5. Handling Precautions And Compliance
The document provides a power-on/off sequence to prevent device damage from latch up. The module is compliant with the RoHS directive. The document includes specific mounting, operating, and handling precautions.
