N156BGE-P21 ETC2

Document overview

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  • PDF pages: 27

Technical content

Datasheet sections

  • 1.1 OVERVIEW
  • 1.2 GENERAL SPECIFICATI0NS
  • 2.1 CONNECTOR TYPE
  • 3.1 ABSOLUTE RATINGS OF ENVIRONMENT (Based on INNOL UX Module)
  • 3.3.1 TFT LCD MODULE
  • 4.1 FUNCTION BLOCK DIAGRAM
  • 4.3 ELECTRICAL CHARACTERISTICS
  • 4.3.1 TFT LCD OPEN CELL
  • 4.3.2 LED CONVERTER SPECIFICATION
  • 4.4 LVDS INPUT SIGNAL TIMING SPECIFICATIONS
  • 4.4.1 LVDS DC SPECIFICATIONS
  • 4.4.2 LVDS DATA FORMAT
  • 4.4.3 COLOR DATA INPUT ASSIGNMENT
  • 4.5 DISPLAY TIMING SPECIFICATIONS
  • 4.6 POWER ON/OFF SEQUENCE
  • 5.1 TEST CONDITIONS
  • 5.2 OPTICAL SPECIFICATIONS
  • 6.1 INNOLUX OPEN CELL LABEL
  • 6.2 Package Reliability
  • 6.3 CARTON
  • 6.4 PALLET
  • 7.1 HANDLING PRECAUTIONS
  • 7.2 STORAGE PRECAUTIONS
  • 7.3 OPERATION PRECAUTIONS

Version 2.1 9 April 2013 1 / 27 The copyright belongs to InnoLux. Any unauthorized use is prohibited. Customer: APPROVED BY SIGNATURE Name / Title Note Please return 1 copy for your confirmation with your signature and comments. Doc. Number: □ Tentative Specification □ Preliminary Specification ■ Approval Specification MODEL NO.: N156BGE SUFFIX: P21 Approved By Checked By Prepared By 楊竣傑楊竣傑楊竣傑楊竣傑 2013-03-29 18:33:23 CST 曹文彬曹文彬曹文彬曹文彬 2013-03-27 16:59:44 CST 朱明永朱明永朱明永朱明永 2013-03-20 18:38:30 CST

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REVISION HISTORY

Version Date Page Description 2.1 Mar.19,2013 All Change logo & content from “CHI MEI INNOLUX” to “INNOLUX”

Version 2.1 9 April 2013 4 / 27 The copyright belongs to InnoLux. Any unauthorized use is prohibited. 1. GENERAL DESCRIPTION

1.1 OVERVIEW

N156B6-P0B is a 15.6” (1 5. 547” diagonal) TFT Liquid Crystal Display with LED Driver ICs and a 40-pins-and-1ch-LVDS circuit board. This product supports 1366 x 768 HD mode and can display 262,144 colors. The backlight unit is not built in.

1.2 GENERAL SPECIFICATI0NS

Item Specification Unit Note Screen Size 15.547 diagonal Driver Element a-si TFT active matrix - - Pixel Number 1366 x R.G.B. x 768 pixel - Pixel Pitch 0.252 (H) x 0.252 (V) mm - Pixel Arrangement RGB vertical stripe - - Display Colors 262,144 color - Transmissive Mode Normally white - - Surface Treatment Hard coating (3H), Glare - - 2. MECHANICAL SPECIFICATIONS item Min. Typ. Max. Unit Note Horizontal (H) with PCB 353.53 353.63 353.73 mm Horizontal (H) w/o PCB 353.53 353.63 353.73 mm Vertical (V) with PCB 248.19 248.29 248.39 mm Vertical (V) w/o PCB 202.74 202.84 202.94 mm Thickness (T) with PCB - 1.7 1.8 mm Size Thickness (T) w/o PCB - 1.27 mm Weight - 209 g I/F connector mounting position The mounting inclination of the connector makes the screen center within ±0.5mm as the horizontal. (1) (2) Note (1) Please refer to the attached drawings for more information of front and back outline dimensions. (2) Connector mounting position

2.1 CONNECTOR TYPE

2.1.1 LVDS Connector

Please refer Appendix Outline Drawing for detail design. Connector Part No.: IPEX-20455-040E-12; TYCO- 5-2069716-3 User’s connector Part No: IPEX-20453-040T-01 or equivalent Pin1 Pin40

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2.1.2 LED Light-Bar Connector

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3.1 ABSOLUTE RATINGS OF ENVIRONMENT (Based on INNOL UX Module)

Min. Max. Unit Note Storage Temperature T ST -20 +60 ºC (1) Operating Ambient Temperature T OP 0 +50 ºC (1), (2) Note (1) (a) 90 %RH Max. (Ta <= 40 ºC). (b) Wet-bulb temperature should be 39 ºC Max. (Ta > 40 ºC). (c) No condensation. Note (2) The temperature of panel surface should be 0 ºC min. and 60 ºC max.

3.2 ABSOLUTE RATINGS OF ENVIRONMENT (OPEN CELL)

High temperature or humidity may reduce the performance of panel. Please store LCD panel within the specified storage conditions. Storage Condition: With packing. Storage temperature range: 25±5 ºC. Storage humidity range: 50±10%RH. Shelf life: 30days Storage Range Relative Humidity (%RH) Operating Temperature (ºC) 100 80 60 -20 40 0 20 -40

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3.3 ELECTRICAL ABSOLUTE RATINGS (OPEN CELL)

3.3.1 TFT LCD MODULE

Min. Max. Unit Note Power Supply Voltage VCCS -0.3 +4.0 V Logic Input Voltage V IN -0.3 VCCS+0.3 V (1) Converter Input Voltage LED_VCCS -0.3 24 V (1) Converter Output Voltage LED+ -0.3 30.6 V (1) Converter Control Signal Voltage LED_PWM, -0.3 3.6 V (1) Converter Control Signal Voltage LED_EN -0.3 3.6 V (1) Note (1) Stresses beyond those listed in above “ELECTRICAL ABSOLUTE RATINGS” may cause permanent damage to the device. Normal operation should be restricted to the conditions described in “ELECTRICAL CHARACTERISTICS”.

Version 2.1 9 April 2013 8 / 27 The copyright belongs to InnoLux. Any unauthorized use is prohibited. 4. ELECTRICAL SPECIFICATIONS

4.1 FUNCTION BLOCK DIAGRAM

4.2. INTERFACE CONNECTIONS

4.2.1 PIN ASSIGNMENT

Pin Symbol Description Remark

1 NC No Connection (Reserve)

2 VCCS Power Supply (3.3V typ.) 3 VCCS Power Supply (3.3V typ.) 4 VEDID DDC 3.3V power

5 NC No Connection (Reserved for INNOLUX test)

6 CLKEDID DDC clock

7 DATAEDID DDC data

8 Rxin0- LVDS differential data input

9 Rxin0+ LVDS differential data input R0-R5, G0

10 VSS Ground

11 Rxin1- LVDS differential data input

12 Rxin1+ LVDS differential data input G1~G5, B0, B1

13 VSS Ground

14 Rxin2- LVDS Differential Data Input

15 Rxin2+ LVDS Differential Data Input B2-B5,HS,VS, DE

16 VSS Ground

17 RxCLK- LVDS differential clock input

18 RxCLK+ LVDS differential clock input LVDS CLK

19 VSS Ground

20 NC No Connection (Reserve)

21 NC No Connection (Reserve)

22 VSS Ground

23 NC No Connection (Reserve)

Data & Clock TFT LCD PANEL SCAN DRIVER IC DC/DC CONVERTER & REFERENCE VOLTAGE GENERATOR INPUT CONNECTOR CLK EDID TIMING CONTROLLER DATA DRIVER IC LED CONVERTER BACKLIGHT UNIT

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24 NC No Connection (Reserve)

25 VSS Ground

26 NC No Connection (Reserve)

27 NC No Connection (Reserve)

28 VSS Ground

29 NC No Connection (Reserve)

30 NC No Connection (Reserve)

31 LED_GND LED Ground

32 LED_GND LED Ground

33 LED_GND LED Ground

34 NC No Connection (Reserve)

35 LED_PWM PWM Control Signal of LED Converter

36 LED_EN Enable Control Signal of LED Converter

37 NC No Connection (Reserve)

38 LED_VCCS LED Power Supply

39 LED_VCCS LED Power Supply

40 LED_VCCS LED Power Supply

Note (1) The first pixel is odd as shown in the following figure. 1,1 (odd) 1,2 (even) 1,3 (odd) 1,4 (even) 2,1 2,2 3,1 Ymax,1 Ymax, Xmax 1,Xmax Pitch Pitch

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4.2.2 LED CONVERTER OUTPUT PIN ASSIGNMENT

Pin Symbol Description Remark

1 LED+ LED Light Bar Input Power Supply

2 LED+ LED Light Bar Input Power Supply

3 NC No Connection (Reserve)

4 LED- LED Light Bar Feedback Channel

5 LED- LED Light Bar Feedback Channel

6 LED- LED Light Bar Feedback Channel

7 LED- LED Light Bar Feedback Channel

8 LED- LED Light Bar Feedback Channel

9 LED- LED Light Bar Feedback Channel

10 NC No Connection (Reserve)

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4.3 ELECTRICAL CHARACTERISTICS

4.3.1 TFT LCD OPEN CELL

Min. Typ. Max. Unit Note Power Supply Voltage VCCS 3.0 3.3 3.6 V (1)- Ripple Voltage V RP - 50 - mV (1)- Inrush Current I RUSH - - 1.5 A (1),(2) Mosaic - 288 323 mA (3)a Power Supply Current Black lcc - 360 400 mA (3)b Note (1) The ambient temperature is Ta = 25 ± 2 ºC. Note (2) IRUSH : the maximum current when VCCS is rising IIS : the maximum current of the first 100ms after power-on Measurement Conditions: Shown as the following figure. Test pattern: black. (High to Low) (Control Signal) +12V SW 1uF VCCS +3.3V 2SK1470 Q1 2SK1475 47K VR1 47K C2 0.01uF 1uF FUSE (LCD Module Input) VCCS rising time is 0.5ms

Version 2.1 9 April 2013 12 / 27 The copyright belongs to InnoLux. Any unauthorized use is prohibited. Note (3) The specified power supply current is under the conditions at VCCS = 3.3 V, Ta = 25 ± 2 ºC, DC Current and f v = 60 Hz, whereas a power dissipation check pattern below is displayed. Active Area b. Black Pattern Active Area a. Mosaic Pattern

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4.3.2 LED CONVERTER SPECIFICATION

Min. Typ. Max. Unit Note Converter Input power supply voltage LED_Vccs 6.0 12.0 21.0 V Converter Inrush Current ILED RUSH - - 1.5 A (1) Backlight On 2.3 - 3.3 V EN Control Level Backlight Off 0 - 0.5 V PWM High Level 2.3 - 3.3 V PWM Control Level PWM Low Level 0 - 0.5 V 10 - 100 % PWM Control Duty Ratio 5 - 100 % (2) PWM Control Permissive Ripple Voltage VPWM_pp - - 100 mV PWM Control Frequency f PWM 190 - 2K Hz (3) LED Power Current LED_VCCS =Typ. ILED 253 301 357 mA (4) Note (1) ILED RUSH : the maximum current when LED_VCCS is rising, ILED IS : the maximum current of the first 100ms after power-on, Measurement Conditions: Shown as the following figure. LED_VCCS = Typ, Ta = 25 ± 2 ºC, fPWM = 200 Hz, Duty=100%. (High to Low) (Control Signal) LED_VCCS(Typ) SW=24V 1uF LED_VCCS(Typ) IRL3303 Q1 IRL3303 47K VR1 47K C2 0.01uF 1uF FUSE (LED Converter Input)

Version 2.1 9 April 2013 14 / 27 The copyright belongs to InnoLux. Any unauthorized use is prohibited. 90% 10% 0.5ms ILED Rush ILED IS ILED LED_VCC 100ms LED_PWM LED_EN Note (2) If the PWM control duty ratio is less than 10%, there is some possibility that acoustic noise or backlight flash can be found. And it is also difficult to control the brightness linearity. Note (3) If PWM control frequency is applied in the range less than 1KHz, the “waterfall” phenomenon on the screen may be found. To avoid the issue, it’s a suggestion that PWM control frequency should follow the criterion as below. PWM control frequency f PWM should be in the range N : Integer ) 3( ≥N f : Frame rate Note (4) The specified LED power supply current is under the conditions at “LED_VCCS = Typ.”, Ta = 25 ± 2 ºC, f PWM = 200 Hz, Duty=100%. VLED rising time is 0.5ms

Version 2.1 9 April 2013 15 / 27 The copyright belongs to InnoLux. Any unauthorized use is prohibited. T/7 IN6 IN5 IN4 IN3 IN2 IN1 IN0 IN13 IN12 IN11 IN10 IN9 IN8 IN7 IN20 IN19 IN18 IN17 IN16 IN15 IN14 G0 R3 R2 R1 R0 R5 R4 B1 G4 G3 G2 G1 B0 G5 DE B5 B4 B3 B2 Vsync Hsync Signal for 1 DCLK Cycle (T) Rxin0 Rxin1 Rxin2 CLK+

4.4 LVDS INPUT SIGNAL TIMING SPECIFICATIONS

4.4.1 LVDS DC SPECIFICATIONS

Min. Typ. Max. Unit Note LVDS Differential Input High Threshold VTH(LVDS) - - +100 mV (1), VCM =1.2V LVDS Differential Input Low Threshold VTL(LVDS) -100 - - mV (1) VCM =1.2V LVDS Common Mode Voltage V CM 1.125 - 1.375 V (1) LVDS Differential Input Voltage |V ID | 100 - 600 mV (1) LVDS Terminating Resistor R T - 100 - Ohm - Note (1) The parameters of LVDS signals are defined as the following figures.

4.4.2 LVDS DATA FORMAT

VCM |V ID | Single Ended |V ID | VTH (LVDS ) VTL (LVDS ) Differential

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4.4.3 COLOR DATA INPUT ASSIGNMENT

The brightness of each primary color (red, green and blue) is based on the 6-bit gray scale data input for the color. The higher the binary input the brighter the color. The table below provides the assignment of color versus data input. Data Signal Red Green Blue Color R5 R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1 B0 Basic Colors Black Red Green Blue Cyan Magenta Yellow White Gray Scale Of Red Red(0)/Dark Red(1) Red(2) Red(61) Red(62) Red(63) Gray Scale Of Green Green(0)/Dark Green(1) Green(2) Green(61) Green(62) Green(63) Gray Scale Of Blue Blue(0)/Dark Blue(1) Blue(2) Blue(61) Blue(62) Blue(63) Note (1) 0: Low Level Voltage, 1: High Level Voltage

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4.5 DISPLAY TIMING SPECIFICATIONS

The input signal timing specifications are shown as the following table and timing diagram . Refresh rate 60Hz Signal Item Symbol Min. Typ. Max. Unit Note DCLK Frequency 1/Tc 62.4 69.3 72.8 MHz - Vertical Total Time TV 772 788 793 TH - Vertical Active Display Period TVD 768 768 768 TH - Vertical Active Blanking Period TVB TV-TVD 20 TV-TVD TH - Horizontal Total Time TH 1456 1466 1492 Tc - Horizontal Active Display Period THD 1366 1366 1366 Tc - DE Horizontal Active Blanking Period THB TH-THD 100 TH-THD Tc - Note (1) Because this module is operated by DE only mode, Hsync and Vsync are ignored. INPUT SIGNAL TIMING DIAGRAM TH TC DCLK THD TVD Tv DE DE DATA

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4.6 POWER ON/OFF SEQUENCE

The power sequence specifications are shown as the following table and diagram . Value Symbol Min. Typ. Max. Unit Note t1 0.5 - 10 Ms t2 0 - 50 Ms t3 0 - 50 Ms t4 500 - - Ms t5 200 - - Ms t6 200 - - Ms t7 0.5 - 10 Ms tA 0.5 - 10 Ms tB 0 10 Ms tC 10 - - Ms tD 10 - - Ms tE 10 - - Ms tF 10 - - Ms Note (1) Please don’t plug or unplug the interface cable when system is turned on. Note (2) Please avoid floating state of the interface signal during signal invalid period. Note (3) It is recommended that the backlight power must be turned on after the power supply for LCD and the interface signal is valid. - Power Supply for LCD, VCCS - Interface Signal (LVDS Signal of Transmitter), V I Power On Power Off 10% t6 t5 t3 t2 90% 10% 90% Valid Data 10% tA tC tB tD tE t F 10% 10% 90% 90% - Power Supply for LED Converter, LED_VCCS - LED Converter Dimming Signal, LED_PWM - LED Converter Enable Signal, LED_EN PWM Signal

Version 2.1 9 April 2013 19 / 27 The copyright belongs to InnoLux. Any unauthorized use is prohibited. 5. OPTICAL CHARACTERISTICS

5.1 TEST CONDITIONS

Ambient Temperature Ta 25 ±2 oC Ambient Humidity Ha 50 ±10 %RH Supply Voltage V CC 3.3 V Input Signal According to typical value in "3. ELEC TRICAL CHARACTERISTICS" The measurement methods of optical characteristics are shown in Section 5.2. The following items should be measured under the test conditions described in Section 5.1 and stable environment shown in Note (5).

5.2 OPTICAL SPECIFICATIONS

Item Symbol Condition Min. Typ. Max. Unit Note Center Transmittance T% 5.3 6.3 (1) , (5) , (8) Contrast Ratio CR θx=0 °, θY =0 ° CS-1000T, INNOLUX BLU 500 650 (1) ,(3) , (5) Transmittance uniformity δT% θx=0 °, θY =0 ° TR - 3 8 ms Response Time TF θx=0 °, θY =0 ° - 8 13 ms (4) Rcx 0.633 - Red Rcy 0.327 - Gcx 0.285 - Green Gcy 0.568 - Bcx 0.155 - Blue Bcy 0.118 - Wcx 0.315 - Color Chromaticity White Wcy θ x=0 °, θY =0 ° CS-1000T Standard light source “C” Typ.- 0.03 0.345 Typ.+ 0.03 (0), (5) θx+ 40 45 - Horizontal θx- 40 45 - θY+ 15 20 - Viewing Angle Vertical θY- CR ≥10 BM-5A 40 45 - Deg. (1),(3),(5) Note (0) Light source is the standard light source “C” which is defined by CIE and driving voltages are based on suitable gamma voltages. The calculating method is as following ： 1. Measure Module’s and BLU’s spectrums. White is without signal input and R, G, B are with signal input. BLU is supplied by INNOLUX . 2. Calculate cell’s spectrum. 3. Calculate cell’s chromaticity by using the spectrum of standard light source “C”

Version 2.1 9 April 2013 20 / 27 The copyright belongs to InnoLux. Any unauthorized use is prohibited. Note (1) Light source is the BLU which is supplied by INNOLUX and driving voltages are based on suitable gamma voltages. White is without signal input and R, G, B are with signal input. SPEC is judged by INNOLUX’s golden sample. Note (2) Definition of Viewing Angle (θx, θy): Note (3) Definition of Contrast Ratio (CR): The contrast ratio can be calculated by the following expression. Contrast Ratio (CR) = L63 / L0 L63: Luminance of gray level 63 L 0: Luminance of gray level 0 CR = CR (1) CR (X) is corresponding to the Contrast Ratio of the point X at Figure in Note (6). Note (4) Definition of Response Time (T R , TF): 100% 90% 10% Gray Level 63 Gray Level 0 Gray Level 63 Time TF Optical Response TR 66.67 ms 66.67 ms 12 o’clock direction θ y+ = 90º 6 o’clock θ y- = 90º θx− θx+ θy- θy+ y- x+ Normal θx = θy = 0º θX+ = 90º θX- = 90º

Version 2.1 9 April 2013 21 / 27 The copyright belongs to InnoLux. Any unauthorized use is prohibited. Note (5) Measurement Setup: The LCD module should be stabilized at given temperature for 20 minutes to avoid abrupt temperature change during measuring. In order to stabilize the luminance, the measurement should be executed after lighting Backlight for 20 minutes in a windless room. Note (6) Definition of Transmittance Variation (δT%): Measure the transmittance at 5 points Note (7) Definition of Transmittance (T%): Module is without signal input. BLU is supplied by INNOLUX . Maximum [T%(1), T%(2), … T%(5)] Minimum [T%(1), T%(2), … T%(5)] δT% = Luminance of LCD module Luminance of backlight Transmittance = ＊ 100% CS-2000T Field of View = 2º 500 mm LCD Module LCD Panel Center of the Screen Light Shield Room (Ambient Luminance < 2 lux) USB2000

Version 2.1 9 April 2013 22 / 27 The copyright belongs to InnoLux. Any unauthorized use is prohibited. Note (8) The listed optical specifications refer to the initial value of manufacture, but the condition of the specifications after long-term operation will not be warranted. D W Active Area Vertical Line Horizontal Line : Test Point X=1 to 5 1 2 3 4 D/4 D/2 3D/4 W/4 W/2 3W/4 X

Version 2.1 9 April 2013 23 / 27 The copyright belongs to InnoLux. Any unauthorized use is prohibited. 6. PACKING

6.1 INNOLUX OPEN CELL LABEL

The barcode nameplate is pasted on each OPEN CELL as illustration for INNOLUX internal control. (a) Model Name: N156BGE - P21 (b) Revision: Rev. XX, for example: C1, C2 …etc. (c) Serial ID: X X X X X X X Y M D L N N N N Serial ID includes the information as below: (a) Manufactured Date: Year: 0~9, for 2010~2019 Month: 1~9, A~C, for Jan. ~ Dec. Day: 1~9, A~Y , for 1 st to 31 st , exclude I , O and U (b) Revision Code: cover all the change (c) Serial No.: Manufacturing sequence of product (d) Product Line: 1 -> Line1, 2 -> Line 2, …etc. Product Line Year, Month, Date INNOLUX Internal Use Revision INNOLUX Internal Use Serial No. 5Y XXX 06 YMDLNNNN N156BGE-P21 Rev. XX XXXXXXXYMDLNNNN Rev. XX Made in XXXX

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6.2 Package Reliability

(1) Carton Packing should have no failure in the following reliability test items Test Item Test Conditions Note Packing Vibration ISTA STANDARD Random, Frequency Range: 1 – 200 Hz Top & Bottom: 30 minutes (+Z), 10 min (-Z), Right & Left: 10 minutes (X) Back & Forth 10 minutes (Y) Non Operation

6.3 CARTON

Figure. 6-3 Packing method method

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6.4 PALLET

Figure. 6-4 Packing method method

Version 2.1 9 April 2013 26 / 27 The copyright belongs to InnoLux. Any unauthorized use is prohibited. 7. PRECAUTIONS

7.1 HANDLING PRECAUTIONS

(1) The module should be assembled into the system firmly by using every mounting hole. Be careful not to twist or bend the module. (2) While assembling or installing modules, it can only be in the clean area. The dust and oil may cause electrical short or damage the polarizer. (3) Use fingerstalls or soft gloves in order to keep display clean during the incoming inspection and assembly process. (4) Do not press or scratch the surface harder than a HB pencil lead on the panel because the polarizer is very soft and easily scratched. (5) If the surface of the polarizer is dirty, please clean it by some absorbent cotton or soft cloth. Do not use Ketone type materials (ex. Acetone), Ethyl alcohol, Toluene, Ethyl acid or Methyl chloride. It might permanently damage the polarizer due to chemical reaction. (6) Wipe off water droplets or oil immediately. Staining and discoloration may occur if they left on panel for a long time. (7) If the liquid crystal material leaks from the panel, it should be kept away from the eyes or mouth. In case of contacting with hands, legs or clothes, it must be washed away thoroughly with soap. (8) Protect the module from static electricity, it may cause damage to the C-MOS Gate Array IC. (9) Do not disassemble the module. (10) Do not pull or fold the LED wire. (11) Pins of I/F connector should not be touched directly with bare hands.

7.2 STORAGE PRECAUTIONS

(1) High temperature or humidity may reduce the performance of module. Please store LCD module within the specified storage conditions. (2) It is dangerous that moisture come into or contacted the LCD module, because the moisture may damage LCD module when it is operating. (3) It may reduce the display quality if the ambient temperature is lower than 10 ºC. For example, the response time will become slowly, and the starting voltage of LED will be higher than the room temperature.

7.3 OPERATION PRECAUTIONS

(1) Do not pull the I/F connector in or out while the module is operating. (2) Always follow the correct power on/off sequence when LCD module is connecting and operating. This can prevent the CMOS LSI chips from damage during latch-up. (3) The startup voltage of Backlight is approximately 1000 Volts. It may cause electrical shock while assembling with converter. Do not disassemble the module or insert anything into the Backlight unit.

Version 2.1 9 April 2013 27 / 27 The copyright belongs to InnoLux. Any unauthorized use is prohibited. Appendix. OUTLINE DRAWING