Comprehensive Technical Specification & Application Guide
1. Executive Summary & Product Positioning
The LSCI070001XGA-RV1.0, developed by LESSON (Wan'an) Zhixian Technology Co., Ltd., is a 7.0-inch transmissive amorphous Silicon TFT-LCD module featuring IPS (In-Plane Switching) technology for wide, uniform viewing angles, with an integrated Capacitive Touch Panel (CTP). This product specification book (Revision 1.0, released 2024-03-04) is the definitive technical document, meticulously defining its structural composition (COG+FPC+B/L+CTP), mechanical dimensions, absolute maximum ratings, detailed electrical characteristics, complete LVDS (Low-Voltage Differential Signaling) interface pinout and timing, power on/off sequencing, and comprehensive electro-optical performance. It delivers a WSVGA resolution of 1024(RGB)×600 with full 16.7M-color (24-bit RGB) display capability and a high typical brightness of 450 cd/m². The document provides a complete technical basis for design-in and system integration. The unequivocal recommendation for engineers is to strictly adhere to the mechanical tolerances, voltage limits, LVDS timing parameters, power sequence, and optical specifications described herein to ensure reliable operation, compatibility, and optimal display quality.
2. Detailed Product Overview & Architecture
- Core Technology: Transmissive-type a-Si TFT-LCD (amorphous silicon thin film transistor liquid crystal display) with IPS technology.
- Display Characteristics: Capable of displaying up to 16.7 million colors (24-bit RGB input).
- Module Construction: COG (Chip-On-Glass) + FPC (Flexible Printed Circuit) + B/L (Backlight Unit) + CTP (Capacitive Touch Panel). A fully integrated display and touch solution.
- Input Data: 24-bit RGB.
- Interface: LVDS (Low-Voltage Differential Signaling) – a high-speed differential serial interface standard for display connectivity.
- Viewing Direction (Grayscale Inversion): IPS – providing excellent viewing angles from all directions.
- Display Format: Graphic 1024(RGB)×600 Dot-matrix.
- Approval Status: Approved Product Specification only (as per signature block).
- Revision: 1.0, New released on 2024-3-4.
3. Exhaustive Technical Specifications
3.1 Mechanical & Physical Specifications
| Item | Specification | Unit |
|---|---|---|
| Module size (H×V×D) | 164.9 × 100 × 4.85 | mm |
| Active area (H×V) | 154.08 × 85.92 | mm |
| Number of dots / Resolution | 1024(RGB) × 600 | pixel |
| Panel Size (Diagonal) | 7.0 | inch |
3.2 Electrical & Interface Specifications
3.2.1 Absolute Maximum Ratings (Stresses beyond these may cause permanent damage)
| Item | Symbol | Min | Max | Unit | Note |
|---|---|---|---|---|---|
| Digital Supply Voltage | VDD, VDD-LVDS | -0.3 | 5 | V | |
| Analog Supply Voltage | AVDD | -0.5 | 15 | V | |
| Gate On Voltage | VGH | -0.3 | 40 | V | |
| Gate Off Voltage | VGL | -20 | 0.3 | V | |
| Gate On-Gate Off Voltage | VGH-VGL | -0.3 | 40 | V |
3.2.2 Electrical Characteristics (Recommended Operating Conditions)
| Item | Symbol | Min. | TYP. | Max. | Unit | NOTE |
|---|---|---|---|---|---|---|
| Digital Power Supply Voltage For LCD | VDD | 3.0 | 3.3 | 3.6 | V | |
| Analog Power Supply Voltage | AVDD | 8.5 | 8.7 | 8.9 | V | |
| TFT Gate on voltage | VGH | 22 | 23 | 24 | V | |
| TFT Gate off voltage | VGL | -7.4 | -6.8 | -6.2 | V | |
| Common Voltage | VCOM | 2.2 | 2.4 | 2.6 | V | |
| Logic Input Voltage (High) | VIH | 0.7*DVDD | -- | DVDD | V | |
| Logic Input Voltage (Low) | VIL | GND | -- | 0.3*DVDD | V |
3.2.3 Pin Description (49-pin + 6-pin CTP)
A. Main LCD Connector (Pins 1-49):
| Pin No. | Symbol | Function |
|---|---|---|
| 1,2 | VLED+ | Power for LED backlight (Anode) |
| 3,4 | VLED- | Power for LED backlight (Cathode) |
| 5 | GND | Power ground |
| 6 | VCOM | Common Voltage |
| 7 | DVDD | Digital Power |
| 8 | MODE | DE/SYNC mode select. Normally pull high. H: DE mode. L: HSD/VSD mode |
| 9 | DE | Data Enable signal |
| 10 | VSD | Vertical sync input. Negative polarity |
| 11 | HSD | Horizontal sync input. Negative polarity |
| 12-19 | B7-B0 | Blue Data (8-bit) |
| 20-27 | G7-G0 | Green Data (8-bit) |
| 28-35 | R7-R0 | Red Data (8-bit) |
| 36 | GND | Ground |
| 37 | DCLK | Clock signal |
| 38 | GND | Ground (Display on/off - likely a description quirk, this is GND) |
| 39 | SHLR | Left or Right Display Control |
| 40 | UPDN | Up / Down Display Control |
| 41 | VDDG | Positive Power for TFT |
| 42 | VEEG | Negative Power for TFT |
| 43 | AVDD | Analog Power |
| 44 | RSTB | Global reset pin. Active low. Suggest connecting with an RC reset circuit (R=10KΩ, C=1μF). Normally pull high |
| 45 | NC | Not connect |
| 46 | VCOM | Common Voltage |
| 47 | DITH | Dithering setting. H: 8bit resolution (last 2 bits of input data truncated). L: 6bit resolution (default) |
| 48 | GND | Power ground |
| 49 | NC | Not connect |
B. Capacitive Touch Panel (CTP) Connector (6-pin):
| Pin No. | Symbol | Function |
|---|---|---|
| 1 | RST | Reset |
| 2 | VDD | Power |
| 3 | GND | Ground |
| 4 | INT | Interrupt |
| 5 | SDA | I²C Data |
| 6 | SCL | I²C Clock |
3.2.4 Critical Interface Timing
A. Input Timing Table (DE Mode):
| ITEM | SYMBOL | MIN. | TYP. | MAX. | UNIT |
|---|---|---|---|---|---|
| Dot Clock | 1/tCLK | 45 | 51.2 | 57 | MHz |
| DCLK Pulse Duty | Tcwh | 40 | 50 | 60 | % |
| Horizontal Total Time | tH | 1324 | 1344 | 1364 | tCLK |
| Horizontal Effective Time | tHA | -- | 1024 | -- | tCLK |
| Horizontal Blank Time | tHB | 300 | 320 | 340 | tCLK |
| Vertical Total Time | tV | 625 | 635 | 645 | tH |
| Vertical Effective Time | tVA | -- | 600 | -- | tH |
| Vertical Blank Time | tVB | 25 | 35 | 45 | tH |
B. Input Timing Table (SYNC Mode):
| ITEM | SYMBOL | MIN. | TYP. | MAX. | UNIT | Note |
|---|---|---|---|---|---|---|
| Horizontal Total Time | TH | 1324 | 1344 | 1364 | tCLK | |
| Horizontal Pulse Width | Thpw | -- | 20 | -- | tCLK | thb + thpw = 160 DCLK is fixed |
| Horizontal Back Porch | Thb | -- | 140 | -- | tCLK | |
| Horizontal Front Porch | Thfp | 140 | 160 | 180 | tCLK | |
| Horizontal Effective Time | THA | -- | 1024 | -- | tCLK | |
| Vertical Total Time | TV | 625 | 635 | 645 | tH | |
| Vertical Pulse Width | Tvpw | -- | 3 | -- | th | tvpw + tvb = 23th is fixed |
| Vertical Back Porch | Tvb | -- | 20 | -- | th | |
| Vertical Front Porch | Tvfp | 2 | 12 | 22 | th | |
| Vertical Valid | Tvd | -- | 600 | -- | th |
C. Clock and Data Timing Parameters:
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Condition |
|---|---|---|---|---|---|---|
| DVDD Power On Slew Rate | TPOR | -- | -- | 20 | ms | From 0V to 90% DVDD |
| RSTB Pulse Width | TRst | 50 | -- | -- | µs | DCLK=65MHz |
| DCLK Cycle Time | Tcph | 14 | -- | -- | ns | |
| DCLK Pulse Duty | Tcwh | 40 | 50 | 60 | % | |
| VSD Setup Time | Tvst | 5 | -- | -- | ns | |
| VSD Hold Time | Tvhd | 5 | -- | -- | ns | |
| HSD Setup Time | Thst | 5 | -- | -- | ns | |
| HSD Hold Time | Thhd | 5 | -- | -- | ns | |
| Data Setup Time | Tdsu | 5 | -- | -- | ns | D0[7:0],D1[7:0],D2[7:0] to DCLK |
| Data Hold Time | Tdhd | 5 | -- | -- | ns | D0[7:0],D1[7:0],D2[7:0] to DCLK |
| DEN Setup Time | Tesu | 5 | -- | -- | ns | |
| DEN Hold Time | Tehd | 5 | -- | -- | ns |
3.2.5 Power On/Off Sequence
The document defines a specific sequence that must be followed to prevent damage or abnormal operation:
- Power On Sequence:
DVDD → AVDD/VGL → VGH → Video & Logic Signal → Backlight - Power Off Sequence:
Backlight → Video & Logic Signal → VGH → AVDD/VGL → DVDD
Key Timing Requirements (from sequence diagram in context):
- 0 < T1 ≤ 10ms (DVDD to AVDD/VGL)
- T2 > 0ms (AVDD/VGL to VGH)
- T3 > 20ms (VGH to Video & Logic Signal)
- 0 < T6 ≤ 10ms (Backlight off to VGH off)
- T5 > 10ms (VGH off to AVDD/VGL off)
- T7 > 0ms (Video off to VGH off)
- T8 > 0ms (VGH off to AVDD/VGL off)
- T9 > 0ms
- T10 > 0ms
- 0 < T11 ≤ 10ms
- T12 ≥ 200ms
- T13 ≥ 200ms
Critical Note: The time between turning off the backlight and turning off the video & logic signals, and the time between turning off VGH and AVDD/VGL must both be > 0ms.
3.2.6 Backlight Unit
| Item | Symbol | Min | Typ | Max | Unit | Condition |
|---|---|---|---|---|---|---|
| Forward voltage | Vf | 9.0 | 9.6 | 10.5 | V | If=120mA |
| Luminance | Lv | 380 | 450 | - | cd/m² | If=120mA |
| Number of LED | -- | 18 | 18 | 18 | Piece | |
| Connection mode | P | 3 chips serial * 6 (6 strings, 3 LEDs per string) |
Note: The backlight requires a constant-current driver set to 120mA typical, with a forward voltage of approximately 9.6V (ranging from 9.0V to 10.5V).
3.3 Optical & Electro-Optical Characteristics
3.3.1 Key Optical Parameters (Ta=25°C)
| ITEM | SYMBOL | CONDITION | MIN. | TYP. | MAX. | UNIT | NOTE |
|---|---|---|---|---|---|---|---|
| Panel Transmittance | T | θ = 0° | 3.9 | 4.2 | -- | % | |
| Luminance | L | θ = 0° | 380 | 450 | -- | cd/m² | Note1 |
| Luminance Uniformity | YU | 9 points | 75 | 80 | -- | % | Note5 |
| Contrast Ratio | CR | Point-5 | -- | 200 | -- | - | Note3 |
| Response Time (Rr+Tf) | Tr+Tf | Point-5 | -- | 25 | -- | ms | Note4 |
| Viewing Angle (CR>10) | ΘL (Left) | CR > 10, θ=0° | -- | 70 | -- | Deg. | Note2 |
| Viewing Angle (CR>10) | ΘR (Right) | CR > 10, θ=0° | -- | 70 | -- | Deg. | Note2 |
| Viewing Angle (CR>10) | ΘU (Up) | CR > 10, θ=0° | -- | 40 | -- | Deg. | Note2 |
| Viewing Angle (CR>10) | ΘD (Down) | CR > 10, θ=0° | -- | 60 | -- | Deg. | Note2 |
3.3.2 Color Filter Chromaticity (CIE1931, θ=0°)
| Color | X (Typ.) | Y (Typ.) |
|---|---|---|
| White | 0.313 | 0.329 |
| Red | TBD | TBD |
| Green | TBD | TBD |
| Blue | TBD | TBD |
Note: Color gamut (NTSC ratio) is listed as TBD (To Be Determined) in the provided document.
3.3.3 Optical Measurement Definitions
- Contrast Ratio (CR): Calculated as
Luminance (Gray Level 63) / Luminance (Gray Level 0). - Response Time (TR, TF): The time interval between 10% and 90% of amplitude when switching between white (TFT OFF) and black (TFT ON) states.
- Luminance Uniformity: Measured at 9 points across the screen.
Uniformity = [L(MIN) / L(MAX)] × 100%. - Viewing Angle: Defined with the LCD panel center as the reference point. Angles are measured where CR > 10.
3.4 Capacitive Touch Panel (CTP) Specifications
- Interface: I²C (SDA, SCL).
- Control: Dedicated reset (RST) and interrupt (INT) pins.
- Power: Separate power supply pin (VDD).
4. Application Guidelines & Critical Notes
- Intended Use: Industrial HMIs, medical equipment monitors, in-vehicle displays, point-of-sale (POS) terminals, portable instruments, embedded computing—applications requiring a 7.0-inch display with reliable touch interaction and wide viewing angles.
- Critical Design Considerations:
- LVDS Host Required: This module requires a host processor, GPU, or bridge chip with an LVDS transmitter. It is not compatible with parallel RGB, SPI, or MIPI interfaces without a converter.
- Multi-Voltage Power Supply: The module requires several power rails with precise sequencing:
- DVDD (3.3V typical) - Digital logic power.
- AVDD (8.7V typical) - Analog power for the source driver.
- VGH (23V typical) - Gate driver positive supply.
- VGL (-6.8V typical) - Gate driver negative supply.
- VCOM (2.4V typical) - Common electrode voltage.
- VLED+ (9.6V typical) - Backlight LED anode supply.
- CTP VDD - Touch controller power.
- Strict Power Sequencing is CRITICAL: The power on/off sequence (Section 3.2.5) must be strictly followed to prevent latch-up or permanent damage to the module. Use a dedicated power management IC (PMIC) or discrete sequencing circuitry.
- Signal Integrity for LVDS: The LVDS signals are high-speed differential pairs. On the host PCB, ensure 100Ω differential impedance, length matching within each pair, and keep routing away from noisy signals.
- Backlight Driver: The backlight consists of 18 LEDs configured in 6 parallel strings of 3 series LEDs. Design a constant-current driver capable of supplying 120mA total with a compliance voltage of approximately 9.6V (range 9.0V to 10.5V).
- VCOM Adjustment: The VCOM voltage (2.4V typical) may require fine-tuning during system calibration to minimize flicker and eliminate image sticking (as noted in the absolute maximum ratings section for other models).
- Reset Circuit: The RSTB pin should be connected to an RC reset circuit (R=10KΩ, C=1μF) as recommended, to ensure a stable power-on reset. The pulse width should be at least 50µs.
- DE / SYNC Mode Selection: Pin 8 (MODE) selects between DE (Data Enable) mode and HSD/VSD (Sync) mode. Set this pin correctly for your host controller's output format.
- Dithering Control: The DITH pin (Pin 47) controls color resolution. Set to "H" for 8-bit (truncation of LSBs) or "L" for 6-bit (default) dithering.
- Display Orientation: The SHLR (Pin 39) and UPDN (Pin 40) pins control the display's horizontal and vertical orientation, allowing the module to be used in portrait, landscape, or mirrored orientations.
- CTP Integration: The touch panel uses a separate I²C interface. The host system must implement an I²C master to communicate with the touch controller, handle reset, and service interrupts.
- Handling & Compliance:
- Observe stringent ESD precautions due to the integrated capacitive touch sensor.
- The module contains fragile glass and a flexible PCB (FPC). Handle with care.
- Ensure the mechanical design prevents pressure on the active area to avoid optical defects (Mura).
5. Conclusion & Design-In Support
The LSCI070001XGA-RV1.0 specification details a comprehensive, professional-grade 7.0-inch WSVGA IPS touch display module with an LVDS interface. Its key strengths are the high 1024x600 resolution, excellent 450 cd/m² brightness, wide IPS viewing angles, and the convenience of an integrated capacitive touch layer. The document is exceptionally complete, providing detailed power sequence timing, multi-rail voltage specifications, and complete LVDS interface timing for both DE and SYNC modes.
The main design challenges involve implementing a compliant multi-rail power supply with strict sequencing, designing a high-voltage (9.6V) constant-current backlight driver, and managing high-speed LVDS signal integrity on the host PCB. Additionally, the separate I²C touch controller interface requires its own driver and initialization.
For experienced system integrators with an LVDS-capable host processor and sophisticated power management design capabilities, this module offers a robust, high-quality display solution well-suited for demanding embedded applications requiring both visual performance and touch input.
立信(万安)智显科技有限公司
Lixin (Wan'an) Intelligent Display Technology Co., Ltd.
官方固定名称
Lixin (Wan'an) Intelligent Display Technology Co., Ltd.
Shenzhen ZhiXinWei Photoelectricity Technology Co., Ltd.
核心定位
中小尺寸TFT/LCD显示模组专业制造企业
「深圳研发设计+江西量产制造」一体化布局
核心产品 & 应用领域
产品体系：中小尺寸TFT显示模组、LCD液晶模组、工业宽温高亮屏、车载专用屏、医疗级显示屏、异形屏、触控一体化组件
应用领域：工业控制、车载电子、医疗仪器、智能家居、物联网终端、金融机具、消费电子、通用仪表
显示模组定制流程
全球地址
深圳研发中心：广东省深圳市龙华区大浪北路36-12号星河时代大厦2301-2302室
江西生产基地：江西省吉安市万安县工业园二区2020厂房4号楼
香港办事处：RM NO 43 U-MALL 1/F YUE MAN CTR KWUN TONG KL HONGKONG
联系方式
电话：0796-5866855 / 0796-5877855
邮箱：
微信：15019200406（EDDIE660）
WhatsApp：+852 4614 8012
网址：www.lessonsd.com
多语言SEO关键词
英文：Lixin Intelligent Display, ZhiXinWei Photoelectricity, display manufacturing, LCD screen, small and medium-sized display, display customization, LCM module, LCD, TFT
德文：Lixin Intelligent Display, ZhiXinWei Optoelektronik, Displayherstellung, LCD-Bildschirm, kleine und mittlere Bildschirme, Displayanpassung, LCM-Modul
日文：LESSON（万安）スマートディスプレイ, 深セン智信微オプトエレクトロニクス, ディスプレイ製造, 液晶ディスプレイ, 中・小サイズディスプレイ
