Active matrix display device and mobile terminal using the device
In order to solve a subject that a polycrystalline silicon TFT liquid crystal display apparatus of the driving circuit integration type cannot adopt a technique for reducing the power consumption by an output section, according to the present invention, for example, a sampling latch circuit which co...
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| Main Author | |
|---|---|
| Format | Patent |
| Language | English |
| Published |
16.01.2003
|
| Online Access | Get full text |
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| Summary: | In order to solve a subject that a polycrystalline silicon TFT liquid crystal display apparatus of the driving circuit integration type cannot adopt a technique for reducing the power consumption by an output section, according to the present invention, for example, a sampling latch circuit which composes a horizontal driving circuit (data line driving circuit) of an active matrix type display apparatus is configured such that, when a 1-bit mode (2-gradation mode) is set, a control signal A of the "H" level and another control signal B of the "L" level (low level) are outputted from a 1-bit mode control circuit (
16
) to place only AND circuits (
31
-
2
and
32
-
2
) corresponding to the most significant bit (MSB) into a passage permitting state to place only latch circuits (
35
-
2
and
36
-
2
) of the MSB into a data writing permitting state (active state) while the remaining latch circuits (
35
-
0, 35
-
1, 36
-
0
and
36
-
1
) are placed into a data writing inhibiting state (inactive state). |
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