高精細液晶螢幕專用晶片組具有功能安全的產品陣容一次展開

車用 高精細液晶螢幕專用晶片組

產品概要

汽車的儀表板、導航與後照鏡等逐漸採用HD/FHD高精細液晶螢幕，本產品將液晶螢幕專用的驅動、控制晶片組。由驅動螢幕的閘極驅動器、源極驅動器、時序控制器，以及驅動它們的電源管理IC、伽傌校正IC所組成。車用液晶螢幕目前設計仍以電子零件構成為主流，使用本產品就能夠輕易的組裝一個高精細螢幕模組。

晶片組的組成

【晶片組的組成】

晶片組的組成

可廣泛對應各種規格的晶片組研發成功，能組裝成各種HD/FHD等級的高精細液晶螢幕。另外，時序控制器有搭配Fail電路檢測，能檢驗晶片組的運作狀況。
而且，只需更改IC內部暫存器的數值，就可以簡單變更電源管理器IC各個輸出設定值。有助於機板設計共通化、大幅縮短研發工時。

【晶片組的產品陣容】
產品名稱功能HD720
(1280×720)		FHD等級
(1920×720)		FHD1080
(1920×1080)		3K等級
(2880×1080)
型號個型號個型號個型號個
時序
控制器		各液晶
驅動器
控制

Support FHD LVDS / mini-LVDS Interface LCD Timing Controller for Automotive　BU90AL211-M

■ Description

LCD Panel Timing Controller for Automotive

■ Features
  • Support WUXGA/FHD Class Resolution
    • Horizontal active is up to 1920 pixels
    • Vertical active is up to 1280 lines
  • Flexible LVDS Input / mini-LVDS Output mode
    1. Single-in / Single-out (3pair)
    2. Single-in / Single-out (6pair)
    3. Dual-in / Single-out (6pair)
    4. Dual-in / Dual-out (3pair)
  • Support 2 Type LVDS Data mapping (VESA/JEIDA)
  • Support (1-port 6-pair) / (1/2-port 3-pair) mini-LVDS Output
  • Support mini-LVDS Output Skew Control (T/16 step)
  • Support Internal LDO: 1.5V Output
  • Support Fail-Safe Function (DE, LVDS CLK)
  • Support SSCG (Spread Spectrum Clock Generator)
  • Support 16Kbit External EEPROM
  • Support AGING Function
  • Support Programmable Driver Control Timing
  • Support Up & Down Gate Driver Scan
  • Support Left & Right Direction Data Mapping
  • Support Gamma Correction and Dithering
  • Support Data Inversion
  • Support Blanking Gray Insertion
  • Support I2C Master/Slave Function
  • Support SPI Slave Function
  • Support Start Pulse Return Detection
  • Support CRC Function
  • Support OSD (On-Screen Display) Function
  • AEC-Q100 Qualified
1 1

Support 3K LVDS / mini-LVDS Interface LCD Timing Controller for Automotive　BU90AL210-M

■ Description

LCD Panel Timing Controller for Automotive

■ Features
  • Support WUXGA/FHD Class Resolution
    • Horizontal active is up to 3880 pixels
    • Vertical active is up to 1280 lines
  • Flexible LVDS Input / mini-LVDS Output mode
    1. Single-in / Single-out (3pair)
    2. Single-in / Single-out (6pair)
    3. Dual-in / Single-out (6pair)
    4. Dual-in / Dual-out (3pair)
    5. Dual-in / Dual-out (6pair)
  • Support 2 Type LVDS Data mapping (VESA/JEIDA)
  • Support 2 Type LVDS Dual mode (Odd/Even, Left/Right)
  • Support (1/2-port 6-pair) / (1/2-port 3-pair) mini-LVDS Output
  • Support mini-LVDS Output Skew Control (T/16 step)
  • Support Internal LDO: 1.5V Output
  • Support Fail-Safe Function (DE, LVDS CLK)
  • Support SSCG (Spread Spectrum Clock Generator)
  • Support 16Kbit External EEPROM
  • Support AGING Function
  • Support Programmable Driver Control Timing
  • Support Up & Down Gate Driver Scan
  • Support Left & Right Direction Data Mapping
  • Support Gamma Correction and Dithering
  • Support Data Inversion
  • Support Blanking Gray Insertion
  • Support I2C Master/Slave Function
  • Support SPI Master/Slave Function
  • Support Start Pulse Return Detection
  • Support CRC Function
  • Support OSD (On-Screen Display) Function
  • AEC-Q100 Qualified
1 1
源極
驅動器		液晶
面板
驅動		 (1440ch)

TFT 1440 outputs source driver　ML9882

■ General Description

ML9882 is the source driver for TFT LCD panel that can switch 1440/1284/1278/1260/1200/1080/1026/1020ch output.
This driver outputs voltages of 256 gray-scale levels (8-bit) to the RGB pixels. It covers a wide output voltage range (dynamic range) from 7.6V to 14.2V.
For the 8×3 (RGB) bits signal transmission, the EMI level can be reduced by adopting RSDS and mini-LVDS interface.

■ Features
  • Source driver for TFT LCD
  • Power supply voltage for logic (VCC): 2.7 to 3.6V
  • Power supply voltegae for driver output (VLS): 8.0 to 14.6V
  • Driver's output voltage range: 0.2V to VLS-0.2V
  • Input levels of gray scale: 256 levels of gray scale (8-bit)
  • Gamma reference power supply voltage level: 18 levels (9 levels×2)
  • Selectable 1440/1284/1278/1260/1200/1080/1026/1020ch driver output mode
  • Data input interface
    • RSDS interface (12-pair of data input, one pair of clock input)
      Clock frequency: fmax=85MHz
    • mini-LVDS interface (3- /6-pair of data input, one pair of clock input)
      Clock frequency: fmax=300MHz
  • Support dot inversion , and horizontal 2-dot inversion
  • Low power mode (charge sharing)
  • Driver output AMP bias current control function(4-level)
  • Package: Gold bump chip for COG
  • This product is designed for automotive applications.
    (Note: Please shield chip against the light because it has no light resistance design)
3 (1440ch)4 (1440ch)4 (1440ch)6
閘極
驅動器		液晶
面板
驅動		 (960ch)

960 Output TFT Gate driver　ML9873

■ General Description

ML9873 is a 2 level output gate driver for TFT LCD panels with 960/800/768/720/684/682/640/600/540/512 channel outputs.

■ Features
  • Gate driver for TFT LCD
  • Selectable 960/800/768/720/684/682/640/600/540/512 output ports
  • Logic voltage supply: 2.6 to 3.6V
  • High voltage function: LCD control signal is available VGH-VGL≤40V maximum
  • Maximum operating frequency: 200 kHz
  • Include bidirectional shift function
  • Power On Reset function
  • Au bump chip* for COG
    (*: Please shield chip against the light)
  • For automotive TFT panel
1 (960ch)1 (540ch)

540 Output TFT Gate driver　ML9872

■ General Description

ML9872 is a 2 level output gate driver for TFT LCD panels which is used to implement VGA, WVGA, QHD ,etc resolutions.

■ Features
  • Gate driver for TFT LCD
  • Selectable 540ch/480ch/400ch/384ch/360ch/300ch/240ch output ports
  • Logic voltage supply : 2.4 to 3.6 V
  • High voltage function: LCD control signal is available VCOM-VEE≦40V maximum
  • Maximum operating frequency: 200 kHz
  • Include bidirectional shift function
  • Power On Reset function
  • Au bump chip* for COG
    (*: Please shield chip against the light)
  • For automotive TFT panel
2 (540ch)2
PMIC多功能
電源IC

Automotive Panel Power Management IC　BM81810MUV-M

■ Description

BM81810MUV-M is a power management IC for TFT-LCD panels which are used in car navigation, in-vehicle center panel, and instrument cluster.
This IC incorporates VCOM amplifier, Gate Pulse Modulation (GPM) in addition to the power supply for panel driver (SOURCE, GATE, and LOGIC power supplies). Moreover, this IC has a built-in EEPROM for sequence and output voltage setting retention.

■ Features
  • AEC-Q100 Qualified
  • Protection circuits
    • Under-Voltage Lockout
    • Thermal Shut Down
    • Over-Current Protection
    • Over-Voltage Protection
    • Under Voltage Protection (Timer Latch type)
  • Alternative Synchronous Buck DC/DC converter or LDO for VDD output
  • Synchronous Boost DC/DC converter for AVDD output with integrated load switch.
  • VCOM amplifier with 7bit calibrator
  • Positive charge pump (Integrated diode, x2/x3) for VGH output
  • Negative charge pump for VGL output
  • VGH and VCOM temperature compensation
  • Gate Pulse Modulation (GPM)
  • I2C Interface Output Voltage Setting Control Function
    (Integrated EEPROM)
  • Switching frequency switching function
    (525KHz, 1.05MHz, 2.1MHz)
  • Input tolerant (SCL, SDA, EN, WPN)
1 1 1 1
伽傌校正
IC		影像校正BD81849MUV1BD81849MUV1BD81849MUV1BD81849MUV1

特點：具有功能安全

組成晶片組的各個IC，具備了能互相檢測出預設故障模式的功能。
能隨時確認液晶驅動器的損壞或剝落、液晶的輸入訊號等的資料並且反饋，晶片組能補足來檢測出螢幕的不良。
導入功能安全，有助於事先預防因時速表或後照鏡採用液晶螢幕故障時可能導致的重大事故。

晶片組的功能安全可以檢測到的液晶螢幕不良範例
液晶螢幕
不良範例		畫面黑屏畫面凍結、殘像顯示延遲
發生
異常處
發生
異常時
各相關IC
預想可能錯誤		PMIC①關機--
T-CON②LVDS訊號異常
③內部暫存器異常		⑦LVDS訊號異常-
源極
驅動器		④輸入電壓異常←檢測PMIC
⑤無訊號←檢測T-CON
⑥輸出維持在Low		⑧輸入訊號不穩定-
閘極
驅動器		-⑨輸入訊號異常←檢測T-CON⑩輸入電壓異常←檢測PMIC
產品詢問