Multi-color display device and driving method thereof
A display device and color technology, applied in static indicators, instruments, etc., can solve the problems of light efficiency degradation, emission layer luminous efficiency degradation, etc.
Inactive Publication Date: 2008-01-30
SAMSUNG ELECTRONICS CO LTD
View PDF1 Cites 12 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] However, when an image is displayed with only three primary color pixels, light efficiency deteriorates
Specifically, in an OLED display, since the material of the emitting layer of OLED changes according to the color, the luminous efficiency of the emitting layer is further deteriorated
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
[0032] A four-color display device receives input image signals for pixels of three primary colors (eg, red, green, and blue pixels) to generate output image signals for red, green, blue, and white pixels.
[0033] Alternatively, the four-color display device only emits white light according to the white pixels, wherein the color temperature of the white pixels is determined by the material of the emitting layer and the manufacturing process. The actual color temperature of a white pixel will differ from the preferred target color temperature of white light.
[0034] The present invention seeks to provide a four-color display device which is advantageous in that the color temperature of white light is corrected to a target color temperature.
[0035] Hereinafter, the present invention will be described more fully with reference to the ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A display device and a driving method thereof are provided. The display device includes a plurality of pixels that displays a first color, a second color, a third color, and a white color; a signal processor that generates a white color output image signal based on three input image signals displaying the first to third colors, generates a white color temperature correcting constant based on the white color output image signal, and generates first color, second color, and third color output image signals that correct the first color, second color, and third color input image signals based on the white color temperature correcting constant; and a data driver that converts the output image signal to a data voltage and supplies the data voltage to the pixel to allow the pixel to display an image. Therefore, a color temperature of white light that four color pixels emit can be adjusted to a target color temperature by adjusting an image signal value related to the remaining three color pixels according to luminance of white light that a white pixel emits.
Description
[0001] This application claims priority from Korean Patent Application No. 10-2006-0069192 filed with the Korean Intellectual Property Office on Jul. 24, 2006, the entire contents of which are hereby incorporated by reference. technical field [0002] The present invention relates to a display device and a driving method thereof, in particular to a multicolor organic light emitting diode (OLED) display. Background technique [0003] Recently, flat panel displays that can replace cathode ray tubes (CRTs) have been actively researched. A flat panel display includes a plurality of pixels arranged in a matrix to display three primary colors. By determining one color by combining three colors emitted from three pixels, the flat panel display displays a desired image by appropriately controlling the brightness of each pixel. [0004] However, when an image is displayed with only three primary color pixels, light efficiency may be degraded. In particular, in the OLED display, sin...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
CPCG09G3/3208G09G3/2003G09G2300/0452G09G2340/06G09G2320/0285G09G2320/0666G09G2320/0271G09G3/30G09G3/20
Inventor 朴庆泰崔凡洛李圣秀宋泳录崔智慧
Owner SAMSUNG ELECTRONICS CO LTD