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50英寸LED背光液晶電視屏結構與電氣接口技術規(guī)范

來源:數(shù)字音視工程網(wǎng)        編輯:航行    2012-08-30 09:13:05     加入收藏

2012-08-29 中國電子視像行業(yè)協(xié)會發(fā)布《50英寸LED背光液晶電視屏結構與電氣接口技術規(guī)范》的中國電子視像行業(yè)協(xié)會標準CVIA-TJ-LCD/LED-2012-08

  中國電子視像行業(yè)協(xié)會標準

  CVIA-TJ-LCD/LED-2012-08

  50英寸LED背光液晶電視屏結構與電氣接口技術規(guī)范

  (2.0版本)修訂稿

2012-x-x發(fā)布
2012-x-x實施
發(fā) 布

中國電子視像行業(yè)協(xié)會

  目 錄

  前言………………………………………………………………………………………………………1

  1、范圍………………………………………………………………………………………………… 2

  2、結構部分…………………………………………………………………………………………… 2

  3、電氣接口部分……………………………………………………………………………………… 6

  前 言

  本規(guī)范是中國電子視像行業(yè)協(xié)會的推薦性標準,是協(xié)會相關會員單位在組織技術研發(fā)、采購和生產(chǎn)過程中的主要參照標準,也推薦其它相關企業(yè)參考采用。

  LED背光液晶電視屏結構與電氣接口技術規(guī)范,是根據(jù)產(chǎn)業(yè)和市場的發(fā)展需求,由中國電子視像行業(yè)協(xié)會(簡稱“視像協(xié)會”)組織相關會員單位,共同制定的推薦性標準。本規(guī)范旨在為企業(yè)提供彩色電視機用液晶顯示屏在結構和電氣接口參數(shù)方面的一致性,以達到降低生產(chǎn)成本、規(guī)范生產(chǎn)秩序、促進市場繁榮的目的。

  本規(guī)范主要起草單位(排名不分先后):青島海信電器股份有限公司、廈門華僑電子股份有限公司、TCL集團股份有限公司、青島海爾電子有限公司、深圳創(chuàng)維-RGB電子有限公司、四川長虹電器股份有限公司、康佳集團股份有限公司、南京熊貓電子集團有限公司。

  本規(guī)范V2.0版主要是在V1.0版基礎上增加了對于更窄邊框屏和3D屏的相關定義。

  本規(guī)范的所有權、解釋權和修訂權屬于中國電子視像行業(yè)協(xié)會。

  1、范圍

  本標準給出了50英寸LED背光液晶電視屏(以下簡稱為“屏”)的結構和電氣接口技術規(guī)范,這些規(guī)范是根據(jù)目前中國市場上被共同認可的主流產(chǎn)品規(guī)范而確定。

  2、結構部分[1]

  2.1 關于外形長寬尺寸為1122.64 mm×645.31 mm、兩側邊框寬度為9.9mm的屏

  2.1.1 屏正面與背面的結構布局示意圖分別見圖1和圖2,結構尺寸圖分別見圖3和圖4(詳細數(shù)據(jù)見附件4和附件6的2D圖紙)。

  2.1.2 屏的外形結構尺寸:

  2.1.2.1 外形長寬尺寸為1122.64 mm×645.31 mm。

  2.1.2.2 邊框寬度:上、 側邊框為9.9mm,下邊框為12mm。

  2.1.2.3 側邊和頂部邊框厚度≤15.1mm,底部邊框厚度≤18.4mm。

  2.1.2.4 屏邊框正面到屏玻璃的距離:1.2mm-18mm。

  2.1.3 屏背部基本參數(shù):

  2.1.3.1 壁掛采用400×400的標準(為內(nèi)嵌式盲孔螺柱),壁掛螺柱端面到屏邊框正面的高度

  為21.8mm,內(nèi)螺紋M6,螺柱外徑為φ14mm。

  2.1.3.2 底座的立柱固定位置:凸包到屏邊框正面的高度為16.4mm,螺孔為M4。屏廠家在開

  發(fā)新屏時,如需更改,應第一時間通知視像協(xié)會并與起草本規(guī)范的整機廠溝通,提供合

  適的立柱固定位置。

  2.1.3.3 固定主板和電源板的螺孔為M3,凸包小端直徑為φ8,大端直徑≤φ20;其它位置的

  M4凸包小端直徑為φ12。

  2.1.3.4 固定主板的凸包高度:凸包頂面到屏邊框正面的高度為15.8mm。

  2.1.3.5 固定電源板的凸包高度:凸包頂面到屏邊框正面的高度為18.3mm。

  2.1.3.6 固定音箱的凸包高度:凸包頂面到屏邊框正面的高度為15.8mm。

  2.1.3.7 凸包和螺柱安裝孔深度規(guī)格:標稱深度≧4.8mm,特殊孔規(guī)格單獨標出。

  2.1.4 屏背面螺孔位置如圖4,標稱深度≥4.0mm。

  2.1.5 屏頂側和兩側卡扣方孔(尺寸為12×3) 的位置如圖3,方孔的深度≧2.0mm。

  2.1.6 LED Driver板(即Converter板),位置在圖2左上角,屏廠家可根據(jù)Driver板的大小排布,

  但不能干涉到Driver板下面的凸包。

  2.1.7 屏的詳細結構尺寸見附件3的3D圖紙。

  圖1 50英寸LED背光液晶電視屏正面結構布局示意圖(9.9mm側邊框)

  圖2 50英寸LED背光液晶電視屏背面結構布局示意圖(9.9mm側邊框)

  圖3 50英寸LED背光液晶電視屏正面結構布局示意圖尺寸圖(9.9mm側邊框)

  圖4 50英寸LED背光液晶電視屏背面結構布局示意圖尺寸圖(9.9mm側邊框)

  3、電氣接口部分

  3.1 LED Driver接口定義如下:

PIN Symbol Description
1 VDDB Operating Voltage Supply, +24V DC regulated
2 VDDB Operating Voltage Supply, +24V DC regulated
3 VDDB Operating Voltage Supply, +24V DC regulated
4 VDDB Operating Voltage Supply, +24V DC regulated
5 VDDB Operating Voltage Supply, +24V DC regulated
6 BLGND Ground and Current Return
7 BLGND Ground and Current Return
8 BLGND Ground and Current Return
9 BLGND Ground and Current Return
10 BLGND Ground and Current Return
11 DET BLU status detection: Normal : 0~0.8V ; Abnormal : Open collector
12 VBLON BLU On-Off control: High /Open(3.3V) : BL On ; Low (-0.3~0.8V/GND) : BL Off
13 VDIM N.C for no DC dimming. Or Internal PWM (0~3.3V for 20~100% Duty, open for 100%) < NC ; at External PWM mode>
14 PDIM External PWM (10%~100% Duty, open for 100%) < NC ;at Internal PWM mode>

  3.2 LVDS接口定義如下:

  3.2.1 51-pin的定義(適用于60HZ/120HZ 2D/3D SG/PR屏):

PIN Name Description
1 N.C. No connection
2 N.C. No Connection
3 N.C. No Connection
4 N.C. No Connection
5 L/R out(SG) High(3.3V) : L;
Low(GND) : R
or:N.C. No Connection
6 ROTATE High(3.3V) : Rotate enable(Data mirror); Open/Low(GND) : Normal
or:N.C. No Connection
7 SELLVDS Open/High(3.3V) for NS, Low(GND) for JEIDA
8 DCR1 DCR PWM Dimming Signal Input
Duty: TBD%~100% (0~3.3V)
or:N.C. No Connection
9 DCR2 DCR PWM Dimming Signal Output
Duty: TBD%~100% (0~3.3V)
or:N.C. No Connection
10 DCR3 DCR Function ON/OFF Selection
Low(GND)/Open : DCR Function Disable(Bypass DIM_IN)
High(3.3V) : DCR Function Enable
or:N.C. No Connection
or:2D/3D PR) High(3.3V) : PR 3D
Low(GND)/ Open : 2D
11 GND Ground
12 CH1[0]- First pixel Negative LVDS differential data input. Pair 0
13 CH1[0]+ First pixel Positive LVDS differential data input. Pair 0
14 CH1[1]- First pixel Negative LVDS differential data input. Pair 1
15 CH1[1]+ First pixel Positive LVDS differential data input. Pair 1
16 CH1[2]- First pixel Negative LVDS differential data input. Pair 2
17 CH1[2]+ First pixel Positive LVDS differential data input. Pair 2
18 GND Ground
19 CH1CLK- First pixel Negative LVDS differential clock input.
20 CH1CLK+ First pixel Positive LVDS differential clock input.
21 GND Ground
22 CH1[3]- First pixel Negative LVDS differential data input. Pair 3
23 CH1[3]+ First pixel Positive LVDS differential data input. Pair 3
24 CH1[4]- /NC First pixel Negative LVDS differential data input. Pair 4(10bit) /NC(8bit)
25 CH1[4]+ /NC First pixel Positive LVDS differential data input. Pair 4(10bit) /NC(8bit)
26 2D/3D(SG) Input signal for 2D/3D Mode Selection 2.7~3.3V:SG 3D;0~0.7V:2D
or:N.C. No Connection
27 L/R in Input signal for Left Right eye frame synchronous 2.7~3.3V:L;0~0.7V:R
or:N.C. No Connection
28 CH2[0]- Second pixel Negative LVDS differential data input. Pair 0
29 CH2[0]+ Second pixel Positive LVDS differential data input. Pair 0
30 CH2[1]- Second pixel Negative LVDS differential data input. Pair 1
31 CH2[1]+ Second pixel Positive LVDS differential data input. Pair 1
32 CH2[2]- Second pixel Negative LVDS differential data input. Pair 2
33 CH2[2]+ Second pixel Positive LVDS differential data input. Pair 2
34 GND Ground
35 CH2CLK- Second pixel Negative LVDS differential clock input.
36 CH2CLK+ Second pixel Positive LVDS differential clock input.
37 GND Ground
38 CH2[3]- Second pixel Negative LVDS differential data input. Pair 3
39 CH2[3]+ Second pixel Positive LVDS differential data input. Pair 3
40 CH2[4]- /NC Second pixel Negative LVDS differential data input. Pair 4(10bit) /NC(8bit)
41 CH2[4]+ /NC Second pixel Positive LVDS differential data input. Pair 4(10bit) /NC(8bit)
42 N.C. No Connection
or:LD_EN Input signal for Local Diming Enable H(3.3V) /Open: Enable;Low(GND):Disable
43 N.C. No Connection
or:SCN (SG) SCN_EN
L(GND)or Open: Scanning Disable
H(3.3V): Scanning Enable
44 GND Ground
45 GND Ground
46 GND Ground
47 N.C. No Connection
48 VCC +12V power supply
49 VCC +12V power supply
50 VCC +12V power supply
51 VCC +12V power supply
 
3.2.241-pin的定義(適用于120HZ屏):
PIN Symbol Description
1 N.C. No connection
2 N.C. No Connection
3 N.C. No Connection
4 N.C. No Connection
5 N.C. No Connection
6 N.C. No Connection
7 Reserved Internal Use Only (NC)
8 N.C. No Connection
9 GND Ground
10 CH3[0]- Third pixel Negative LVDS differential data input. Pair 0
11 CH3[0]+ Third pixel Positive LVDS differential data input. Pair 0
12 CH3[1]- Third pixel Negative LVDS differential data input. Pair 1
13 CH3[1]+ Third pixel Positive LVDS differential data input. Pair 1
14 CH3[2]- Third pixel Negative LVDS differential data input. Pair 2
15 CH3[2]+ Third pixel Positive LVDS differential data input. Pair 2
16 GND Ground
17 CH3CLK- Third pixel Negative LVDS differential clock input.
18 CH3CLK+ Third pixel Positive LVDS differential clock input.
19 GND Ground
20 CH3[3]- Third pixel Negative LVDS differential data input. Pair 3
21 CH3[3]+ Third pixel Positive LVDS differential data input. Pair 3
22 CH3[4]- /NC Third pixel Negative LVDS differential data input. Pair 4(10bit) /NC(8bit)
23 CH3[4]+ /NC Third pixel Positive LVDS differential data input. Pair 4(10bit) /NC(8bit)
24 GND Ground
25 GND Ground
26 CH4[0]- Fourth pixel Negative LVDS differential data input. Pair 0
27 CH4[0]+ Fourth pixel Positive LVDS differential data input. Pair 0
28 CH4[1]- Fourth pixel Negative LVDS differential data input. Pair 1
29 CH4[1]+ Fourth pixel Positive LVDS differential data input. Pair 1
30 CH4[2]- Fourth pixel Negative LVDS differential data input. Pair 2
31 CH4[2]+ Fourth pixel Positive LVDS differential data input. Pair 2
32 GND Ground
33 CH4CLK- Fourth pixel Negative LVDS differential clock input.
34 CH4CLK+ Fourth pixel Positive LVDS differential clock input.
35 GND Ground
36 CH4[3]- Fourth pixel Negative LVDS differential data input. Pair 3
37 CH4[3]+ Fourth pixel Positive LVDS differential data input. Pair 3
38 CH4[4]- /NC Fourth pixel Negative LVDS differential data input. Pair 4(10bit) /NC(8bit)
39 CH4[4]+ /NC Fourth pixel Positive LVDS differential data input. Pair 4(10bit) /NC(8bit)
40 GND Ground
41 GND Ground

  備注:120Hz按照First、Second、Third、Fourth對應奇、偶、奇、偶像素順序;

  60Hz按照First、Second對應奇、偶像素順序。

  3.3 電源和信號時序定義(屏時序包含下列參數(shù)信息)

  3.31 LCD驅動電路時序(LCD Driving Circuit)定義如圖7

  圖7 50英寸LED背光液晶電視屏LCD驅動電路時序

  3.3.2 LED背光驅動時序(Sequence for LED Driver)定義如圖8

  圖8 50英寸LED背光液晶電視屏LED背光驅動時序

  3.4 屏的SPEC中須對LED Driver接口以及LVDS接口中的全部控制端口進行功能簡述、阻抗特性、 端口電壓(或者波形)特性等進行明確定義,并同時提供端口電路簡圖(示例如下表)。

Symbol 功能簡述 阻抗特性 I/O Type 端口電壓特性 端口電路簡圖
SCL EEPROM Serial Clock (for local dimming demo function) Open Drain Resistor to GND ≥100Kohm I/O 0V~3.3V
SDA EEPROM Serial Data (for local dimming demo function) Open Drain Resistor to GND ≥100Kohm I/O 0V~3.3V
L/R_O Output signal for Left Right Glasses control ≤1.1Kohm O 0V~0.7V →Right signal, 2.7V~ 3.3V →Left signal
SELLVDS Input signal for LVDS Data Format Selection Resistor to GND ≥100Kohm I 0V~0.7V→JEDIA, 2.7V~3.3V/OPEN→ VESA
2D/3D Input signal for 2D/3D Mode Selection Resistor to GND ≥15Kohm I 0V~0.7V →2D mode, 2.7V ~ 3.3V →3D mode
L/R Input signal for Left Right eye frame synchronous Resistor to GND ≥15Kohm I 0V~0.7V →Right signal, 2.7V~3.3V →Left signal
LD_EN Input signal for Local Dimming Enable Resistor to GND ≥50Kohm I 0V~0.7V -->Disable, 2.7V~3.3V/Open --> Enable
SCN_EN Input signal for Scanning Enable Resistor to GND ≥50Kohm I 0V~0.7V/Open→Disable, 2.7V ~ 3.3V →Enable
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