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 ACX705AKM
6.92cm Diagonal Reflective Color LCD Module
Description The ACX705AKM is a 6.92cm diagonal active matrix reflective color TFT-LCD module with a front light unit and a driving board. This module provides low power consumption which is realized by built-in 3-bit digital interface circuitry. Features * Number of dots: 240 x RGB x 160 * Dot size: 80m x 240m * High reflectivity: (25% typ.) * High contrast ratio: (13:1 typ. at the condition of turning off the front light) * Number of colors: 512 * Low power consumption (47mW typ.) with a driving board composed of a LCD controller IC, a reference driver IC and a DC-DC convertor * Built-in 3-bit digital interface circuitry * Compact size * Thin and bright front light unit Element Structure * Active matrix TFT-LCD panel with built-in peripheral driving circuitry using low temperature polycrystalline silicon transistors * Number of dots Total number of dots: 242 x 3 (H) x 162 (V) = 117,612 Number of active dots: 240 x 3 (H) x 160 (V) = 115,200 * Dimensions Module dimensions: 71.4mm x 52.0mm x 4.8mm (t) (parts area 6.5mm (t) max.) Effective display dimensions: 57.6mm (H) x 38.4mm (V) Applications PDA, etc.
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
-1-
E00847-PS
ACX705AKM
Absolute Maximum Ratings (Ta = 25C, VSS = 0V) * Supply voltage VCC1 VSS - 0.3 to +5.5 VCC2 VSS - 0.3 to +5.5 * Input voltage VI VSS - 0.3 to VCC2 + 0.3 * Storage temperature Tstg -30 to +70 * LED current Iled (as below)
Allowable forward current Iled [mA] 30 25 20 10 0
V V V C
0
20
40 60 Ta [C]
80
100
Recommended Operating Conditions * Supply voltage VCC1 VCC2 * Operating temperature Topr
3.50 to 4.20 2.55 to 3.15 -10 to +60
V V C
Pin Location of Panel Block The FPC pin assignment is described in on page 5. The location of Pin 1 is shown below.
Top
Front View
Left
Active area
Right
Bottom
Top
Rear View
Left
Right
Bottom
Pin 1
Pin 22
-2-
ACX705AKM
Module Configuration This module is composed of a reflective color TFT-LCD panel, a front light unit and a driving board as shown in the figure below.
[(75.5)] 71.4 (Outer frame) 6.4 0.3 63.4 (Cover plate)
+0.1 60 0 (Window)
(1.6) (3.3) (2)
Front View
(7.6) 5.42 7.12 2 (1.7) (5.1)
8.1 (2) 38.1
(59.4) 57.6 (Active area) (33.3)
52 0.3 44.2 (Cover plate) 40.8 +0.1 (Window) 0 (40.2) 38.4 (Active area) (24.48) 27.52
Active area center
(26.4) (2.38) (4.08) (2)
8 (5.9) 6
7 5.5
11.5 (1.15) (8.75) 30.5
71.4 0.3 (Outer frame)
Rear View
(9) (10)
(5.5) (7.5)
+0.1 59.6 0 (Window) 0 52.6 -0.1 (Parts area)
(6.3) (11.3)
52 0.3 (Outer frame) +0.1 37 0 (Window) 0 35 -0.1 (Parts area)
ACX705AKM-01
ACX705AKM-7
T
(6) (7)
-3-
(5.93)
4
MIC1
MIC2 +9.0V +5.0V -6.5V Cover Plate DC-DC Converter
Vcc1 (+3.8V)
Vcc2 (+3.0V) +3.0V Front Light (LED) 36 H Driver Data RGB x 3-bit x 4 22 V Driver Control pulse Control pulse +5.0V 8 CXD2475TQ (Reference Voltage Driver) Vref H Driver VCOM +9.0V, -6.5V Poly-Si TFT LCD (240 x RGB x 160) Control pulse
Data in (RGB x 3-bit) CXD3507GG (LCD Controller)
9
Hsync
Vsync
Block Diagram The block diagram of this LCD module is shown below.
-4-
MCK
S/D
15mA (25C)
ACX705AKM
ACX705AKM
Pin Description Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Symbol MIC1 MIC2 VCC1 VCC1 GND GND R0 R1 R2 G0 G1 G2 B0 B1 B2 Hsync Vsync S/D MCK VCC2 LED VDD LED GND +3.8V power supply +3.8V power supply Ground Ground Red data input (LSB) Red data input Red data input (MSB) Green data input (LSB) Green data input Green data input (MSB) Blue data input (LSB) Blue data input Blue data input (MSB) Hsync input Vsync input Shut down Master clock (4.2MHz) +3.0V power supply LED VDD LED GND Description
-5-
ACX705AKM
S/D There are input for power up/down sequence. Power Up Sequence
Vcc1, Vcc2
Vcc1, Vcc2 0
S/D
Inactive (low)
Vcc2 Active 0
MCK Hsync Vsync DATA (in)
Vcc2 Invalid (low) Valid 0
1 Field (typ.)
Power Down Sequence
S/D
Active
In active (low)
Vcc2 0
Vcc1, Vcc2
Vcc1, Vcc2 0
Vsync
Vcc2 0 13 Fields
-6-
ACX705AKM
Electrical Characteristics Item Supply voltage Ripple voltage Input voltage 1 Symbol VCC1 VCC2 VRF VH1 VL1 Vt+ Input voltage 2 Vt- Vt+ - Vt- Supply current VI = VCC2 Input current 1 VI = 0V Iled | IH1 | | IL1 | ICC1 ICC2 P ICC1s ICC2s fMCK fh fv Cdata Chsde Cvs Cmck Csd Min. 3.50 2.55 -- 2.0 -- -- 0.5 0.2 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Typ. 3.80 3.00 -- -- -- -- -- -- 15 -- -- 11.0 1.6 47 0.1 40 3.26 12.0 60.0 -- -- -- -- -- Max. 4.20 3.15 100 -- 0.7 2.2 -- -- -- 1.0 1.0 17.0 4.0 77 10 200 4.20 15.4 77.2 20 20 20 20 20 Unit V V mV V V V V V mA A A mA mA mW A A MHz kHz Hz pF pF pF pF pF R0 to R2, G0 to G2, B0 to B2 Hsync Vsync MCK S/D VCC1 VCC2 VCC1 MCK (LVTTL level input) All input pins excluding MCK (LVTTL level Schmitt trigger input) LED VDD All input pins VCC1 VCC2 Pins
Current consumption Total power consumption Standby current MCK frequency Horizontal frequency Vertical frequency Data input pin capacitance Hsync input pin capacitance Vsync input pin capacitance MCK input pin capacitance S/D input pin capacitance
8-pixel x 8-pixel Black and White checker pattern
-7-
ACX705AKM
Operating Conditions Item Master clock period MCK width high MCK width low Data setup to MCK falling edge Data hold from MCK falling edge Hsync setup to MCK falling edge Hsync pulse width low Vsync falling edge to Hsync falling edge phase difference Vsync pulse width low Symbol tclk tch tcl tds tdh thss thsw tvhde tvsw Min. 1 -- -- 10 15 10 9 254 2 Typ. -- 0.5 0.5 -- -- -- -- -- -- Max. -- -- -- -- -- -- 16 269 20 Unit tclk tclk tclk ns ns ns tclk tclk line
Operating Condition of Front Light Item LED current Symbol Iled Min. -- Typ. 15 Max. -- Unit mA
Lamp Life The lamp life shall be greater than 50 hours. The operating lamp life is defined as having ended when the illumination of light has reached 50% of the initial value.
-8-
Horizontal Timing Chart
272 dots 240 245 250 255 260 265 270 0 5
230
235
Hsync 16 dots 16 dots
DATA
1
227 228 229 230 231 232 233 234 235 236 237 238 239 240
2
3
4
5
6
7
8
9
10
11
-9-
1 tds tdh 2 240
tch
tcl
MCK tclk
thss
Hsync
thsw
DATA
ACX705AKM
Vertical Timing Chart
155
160
165
180
185
190
195
0
5
10
200 lines
Hsync
Vsync 20 lines 20 lines
Hsync tvhde
- 10 -
tvsw
Vsync
DATA
ACX705AKM
ACX705AKM
Color Combination Table Data signal Color Black Blue Green Cyan Red Magenta Yellow White Black Dark Bright Red Black Dark Bright Green Black Dark Bright Blue Gray scale -- -- -- -- -- -- -- -- 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 R0 0 0 0 0 1 1 1 1 0 1 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 G0 0 0 1 1 0 0 1 1 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 0 0 0 0 0 0 0 0 G1 0 0 1 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 0 0 0 0 0 0 0 0 G2 0 0 1 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 B0 0 1 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 B1 0 1 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 B2 0 1 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1
Standard color
Red
Green
Blue
Gray Scale 0 1 2 3 4 5 6 7
- 11 -
ACX705AKM
Color Coding The color filters are coded in vertical stripe arrangement. The shaded area is used for the dark border around the display.
RGBRGB
RGBRGB
1
RGBRGB
*************************
RGBRGB
RGBRGB
RGBRGB
*********
*********
Active area
160
*************************
RGBRGB
RGBRGB
1
1 x RGB
240 x RGB Front view
1 x RGB
Scanning Direction The scanning direction for the horizontal period and for the vertical period are A and B respectively as shown below. These scanning directions are from a front view.
Horizontal direction A
vertical direction B
Active area
Front view
- 12 -
ACX705AKM
Electro-optical Characteristics Ta = 25C, With front light turning off Item Reflectivity Contrast ratio White chromaticity x y rise fall Top-Bottom Left-Right Symbol R CR xfloff yfloff Tr Tf VAtb VAlr Min. 20 10 0.28 0.29 -- -- 90 100 Typ. 25 13 0.30 0.31 5 10 100 120 Max. -- -- 0.32 0.33 40 40 -- -- CIE CIE ms ms degree () degree () Unit % Notes 1 2 3
Response time
4
Viewing angle
5
Ta = 25C, With front light turning on (Iled = 15mA) Item Luminance Luminance uniformity White chromaticity x y Symbol Lcfl Flunif xflon yflon Min. 3.3 -- 0.27 0.27 Typ. 5 1.3 0.32 0.32 Max. -- 1.7 0.37 0.37 CIE CIE Unit cd/m2 Notes 6 7 3
- 13 -
ACX705AKM
Notes: 1. Reflectivity (R) In the Measurement system-1 (see Fig. 1 (a), (b)), calculate the reflectance factor by using the formula (1). R = R (White) = Output from the "White" displayed panel x reflectance factor of the reflectance standard ...(1) Output from the reflectance standard
2. Contrast ratio with front light turned off (CR) In the Measurement system-1 (see Fig. 1 (a), (b)), measure the reflectance factor of "White" and "Black" respectively and calculate by using the formula (2). CR = R (White) R (Black) ...(2)
3. White chromaticity In the Measurement system-2 (see Fig. 2), measure the white chromaticity. The illumination source and viewing area are D65 and 2 respectively. 4. Response time In the Measurement system-3 (see Fig. 3), measure the electro-optical response time. 5. Viewing angle In the Measurement system-1 (see Fig. 1 (c)), viewing area is defined by the area which makes the CR 2. 6. Luminance In the Measurement system-4 (see Fig. 4), measure the luminance and calculate using the following formula (3). Lcfl = (Luminance (1) + Luminance (3) + Luminance (5) + Luminance (7) + Luminance (9))/5 ...(3) 7. Luminance uniformity In the Measurement system-4 (see Fig. 4), measure the luminance and calculate using the following formula (4). Flunif = Luminance (maximum spot)/Luminance (minimum spot) ...(4)
Basic Measurement Conditions (1) Driving voltage Typical condition (2) Measurement temperature +25C unless otherwise specified. (3) Measurement point One point on the center of the panel unless otherwise specified. (4) Light source and viewing area D65 and 2 (5) Display "White": All R, G and B signal data are high (signal amplitude across the liquid crystal: 1.0V). Display "Black": All R, G and B signal data are low (signal amplitude across the liquid crystal: 4.5V). Front light is turned off unless otherwise specified.
- 14 -
ACX705AKM
Optical fiber
Optical Detector
Mearurement Equipment
Light source
Driving Circuit
LCD panel
(a)
= 0 = 30
FPC side
= 0
FPC side
L
Top
B
Left
T R
Top
Left
Bottom
Right
Bottom
Right
(b)
(c)
Fig. 1. Measurement system-1
Optical fiber
Optical Detector
Mearurement Equipment
Light Source
Integrated sphere LCD panel
Fig. 2. Measurement system-2
- 15 -
ACX705AKM
Light sourse
LCD panel
30 Oscilloscope Optical Detector
Display Data
White (1111) Tr
Black (0000) Tf
White (1111)
100% 90% Optical Instruments Response 10% 0% Time
Fig. 3. Measurement system-3
- 16 -
ACX705AKM
Illuminance Colorimeter BM-5A
400 50mm
1 Reflective LCD Module
(a) The apparatus for luminance measurement
K K/6 K/3 K/3 K/6
L/6 1 L/3 L L/3 7 L/6 8 9 4 5 6 2 3
(b) The spot locations for luminance measurement
Fig. 4. Measurement system-4
- 17 -
ACX705AKM
Image Persistence Display a completely white screen for 20 minutes and continuously display the test pattern shown below for a minimum of two hours. Then display a completely white screen. A visible image of the box pattern shall not persist more than two seconds viewed through 2% ND filter. Pattern is black box 80 pixels wide and 120 pixels in length at minimum luminance, centered horizontally and vertically in the active area. The remainder of the screen is white.
Cross Modulation Cross modulation (cross talk) shall be inspected with following test pattern with 2% ND filter. Pattern is black box 80 pixels wide and 120 pixels in length at minimum luminance, centered horizontally and vertically in the active area. The remainder of the screen is 50% gray.
H/4 H/2 H/4
H/4 H/2
H/4
There shall be no visible difference of luminance around the black box through 2% ND filter.
- 18 -
ACX705AKM
Notes on Handling (1) Static charge prevention Be sure to take the following protective measures. TFT-LCD panels are easily damaged by static charges. a) Use non-chargeable gloves, or simply use bare hands. b) Use an earth-band when handling. c) Do not touch any electrodes of a panel. d) Wear non-chargeable clothes and conductive shoes. e) Install grounded conductive mats on the working floor and working table. f) Keep panels away from any charged materials. g) Use ionized air to discharge the panels. (2) Protection from dust and dirt a) Operate in a clean environment. b) Do not touch the front light surface. The surface is easily scratched. c) Use ionized air to blow dust off the panel. (3) Others a) Do not twist or bend the flexible PC board especially at the connecting region because the board is easily deformed. b) Do not drop the module. c) Do not twist or bend the module. d) Keep the module away from heat sources. e) Do not dampen the module with water or other solvents. f) Avoid storage or using the module at high temperature or high humidity, as this may result in damage.
- 19 -
Package Outline
(75.5) 71.4 (Outer frame) 6.4 0.3 63.4 (Cover plate) 60 (Window) (2) (3.3) (59.4) 57.6 (Active area) (6.3) 38.1 (11.3) (1.7) (6.3) 2 (33.3) 8 7.12 5.42
+0.1 0
1 2 3 4 5 6
(1.6) 8.1 (2)
Front sheild case Rear sheild case Flexible cable Driving board Label Cover plate
71.4 0.3 (Outer frame)
Unit: mm
(5.5)
59.6
+0.1 0
(Window)
(7.5)
52.6
0 -0.1
( Parts area)
1
(9) (10)
ACX705AKM-01
2
27.52
6
40.8
+0.1 0
52
37
0.3 +0.1 0
(40.2)
0
52 0.3
44.2 (Cover plate)
38.4 (Active area)
(Window)
35 -0.1 (Parts area)
(Window)
4
Active area center
(Outer frame)
(24.48)
- 20 -
(6) (7) 6 7 8
ACX705AKM-7
T
4 (2) (4.08) (2.38)
5
(5.9) (5.93)
(26.4)
Note 1) Tolerance with no indicatin (0.1)
2)
0.3 (8.75)
0.5
3
5.5
(1.15) 30.5 11.5
: control dimension (minimum)
ACX705AKM
Sony Corporation


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