A system and method are disclosed to utilize Gray code in order to reduce the power consumption of column drivers in a display system. Binary source data is received from a timing controller. A Gray code digitizer converts and encodes the binary source data into a binary portion of data and a Gray code data. The binary portion data and the Gray code data are transmitted through a shift register to a digital-to-analog converter. The shift register consumes less power processing the converted binary portion of data and Gray code data than the corresponding binary source data. The digital-to-analog converter decodes the Gray code and generates corresponding gamma voltage levels for display use.

Claims

16 · 2 independent · depth 3

16 granted claims

›1.independentA method for utilizing Gray code to reduce power consumption in a display system, the method comprising:nreceiving binary timing controller (TCON) dat…+7

›2.↳ 1The method of claim 1, wherein utilizing Gray code results in successive decimal values differing in only one bit of Gray code.d2

›3.↳ 1The method of claim 1, wherein decoding the Gray code data and the remaining portion of the binary TCON data comprises decoding the Gray code data in …d2

›4.↳ 1The method of claim 1, wherein column driver operations include operations performed by a shift register and a level shifter.d2+1

›5.↳ 1The method of claim 1, wherein decoding the Gray code data and the remaining portion of the binary TCON data includes a digital to analog conversion.d2+1

›8.↳ 1The method of claim 1, wherein the binary TCON data includes data prepared for and transmitted to a specific column driver.d2

›9.independentA system for utilizing Gray code to reduce power consumption in a display system, the system comprising components configured to:nreceive binary timin…+7

›10.↳ 9The system of claim 9, wherein utilizing Gray code results in successive decimal values differing in only one bit of Gray code.d2

›11.↳ 9The system of claim 9, wherein decoding the Gray code data and the remaining portion of the binary TCON data comprises decoding the Gray code data in …d2

›12.↳ 9The system of claim 9, wherein column driver operations include operations performed by a shift register and a level shifter.d2+1

›13.↳ 9The system of claim 9, wherein decoding the Gray code data and the remaining portion of the binary TCON data includes a digital to analog conversion.d2+1

›16.↳ 9The system of claim 9, wherein the binary TCON data includes data prepared for and transmitted to a specific column driver.d2

Classifications

2 codes

IPC · International Patent Classification

Section G — Physics

G09G3/20
G09G3/36

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Pendency

2.8 y

1,035 days filing → grant

Office actions

non-final + final

Responses

no RCE

Examiner

Gustavo Polo

art unit 2695 · TC 2600

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Citations: 6 back · 0 forward

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1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20150042551 A1	12 Feb 2015

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