LQ231U1LW31 Datasheet, PDF (14/26 Pages) Sharp Electrionic Components – Product Specification

6-2. Backlight
The backlight system is an edge-lighting type with white-LED.
(It is usually required to measure under the following condition.condition: Ta=25ˆʶ2ˆ)
Parameter
Symbol Min. Typ. Max. Unit
ēċùøÿø÷ôøøç
Remark
Supply voltage
Current dissipation
Brightness Control Voltage
LED ON/OFF Low Voltage
LED ON/OFF High Voltage
LED life time
V_LED
11.4
12.0
12.6
V
I_LED
ʵ
5.0
5.8
A
V_VR
0
-
3.5
V
V_cntL
0
ʕ
1.0
V
V_cntH
4.5
ʕ
V_LED
V
-
30,000 50,000
-
h
V_LED = 12.0V
Vvr =0V
ʲNote1ʳ
ʲNote2ʳ
ʲNote2ʳ
LED only
The reference LED life time is 30,000h defined by below.
( Continuous turning on at LED Junction temperature（Tj）100℃,
LED Current (If) = 150mA (equal to Max.Brightness)
A state only for LED )
When a brightness of LED surface became 50% of ｔhe specifications minimum.
【Note1】 V_VR input :0V= Max.Brightness 3.5V=Min. Brightness
【Note2】 V_cnt input : Low or OPEN = BL turn on High = BL turn off
【Note3】
On-off condition for supply voltageç ç ç ç ç ç ç ç
ç
90ˋç
ĝ_ēČċç
ç
10ˋç
0ʻ̓̍ʽ20msç
ç
ç
V_LED-dip conditionsç
ç
ĝ_ēČċç
ç
çç ^{ĝĻįɿø÷õüĝç}
ç
ĝĴİĵɿø÷õÿĝç
ç
ç
ç
ĝĴİĵççç
ĝĻįçç
Ļīç
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ç çç
ç çç
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Ļīç ʽçù÷Ĵĺç
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