MATRIX DISPLAY DEVICE FOR DISPLAYING TWO MERGED IMAGES

• US 20120274651A1
• Filed: 10/21/2011
• Published: 11/01/2012
• Est. Priority Date: 10/22/2010
• Status: Abandoned Application

• Current Assignee: MicroOLED Co.
• Original Assignee: MicroOLED Co.
• Inventors: HASS, Gunther, ESPUNO, Laurent
• Application Number:
  US13/278,920
• Publication Number:
  US 20120274651A1
• Time in Patent Office: Days
• US Class Current: 345/589
• CPC Class Codes: G06T 11/00 2D [Two Dimensional] image generation
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 2340/10 Mixing of images, i.e. displayed pixel being the result of an operation, e.g. adding, on the corresponding input pixels
• CPC Class Codes: G09G 2340/12 Overlay of images, i.e. displayed pixel being the result of switching between the corresponding input pixels
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: G09G 3/3611 Control of matrices with row and column drivers

Abstract

A matrix display device with a definition determined by a plurality of pixels, the matrix display device including at least one controller suitable for producing display light intensity signals for each of the pixels; and a matrix of pixels organized in a mosaic of a plurality of identical arrangements of a determined number of pixels, wherein a first number of pixels of an arrangement are dedicated to display of a first image and receives the light intensity signals associated with the pixels of the first image that correspond thereto, one or more other pixels of the arrangement are dedicated to display of a second image and receiving light intensity signals associated with the pixels of said second image that correspond thereto, the matrix display device producing the merged display of the first image and of the second image, the two images being, if necessary, redimensioned by scaling means.

Claims

1. A matrix display device with a definition determined by a plurality of pixels, the matrix display device comprising:

at least one controller suitable for producing display light intensity signals for each of the pixels; and

a matrix of pixels organized in a mosaic of a plurality of identical arrangements of a predetermined number of pixels, wherein

a first plurality of pixels of one of the arrangements are dedicated to display of a first image and receive the light intensity signals associated with the pixels of the first image that correspond thereto,

one or more other pixels of the arrangement are dedicated to display of a second image and receiving light intensity signals associated with the pixels of the second image that correspond thereto,

the matrix display device produces the merged display of the first image and of the second image, and

the two images are, if necessary, redimensioned by scaling means.

2. The matrix display device according to claim 1, wherein the first plurality of pixels emit a first single color, and the other pixels dedicated to the display of the second image emit a second single color different from the first color.

3. The matrix display device according to claim 1, wherein each of the arrangements comprises a square of four pixels comprising

three pixels associated with the light intensity signals intended for the corresponding pixels of the first image, and

a remaining pixel associated with the light intensity signal intended for the corresponding pixel of the second image.

4. The matrix display device according to claim 1, wherein each of the arrangements comprises a square of four pixels comprising

a first two pixels associated with the light intensity signals intended for the corresponding pixels of the first image, and

a second two pixels associated with the light intensity signals intended for the corresponding pixels of the second image.

5. The matrix display device according to claim 3, wherein the controller is configured to apply to the three pixels of each of the arrangements for which said remaining pixels have a quantified light intensity signal value greater than a predetermined threshold value, an attenuation function attenuating the quantified values of the signals to be applied.

6. The matrix display device according to claim 5, wherein the attenuation function attenuates the quantified values of the light intensity signals to be applied respectively to said three pixels, according to the following relationship:

Si=b·

exp(−

a·

S1i)·

S1i, for i=1;

3;

4, a and b being real parameters.

7. The matrix display device according to claim 4, wherein the controller is configured to apply to the first two pixels of each of the arrangements for which the second two pixels have a quantified light intensity signal value greater than a predetermined threshold value, an attenuation function attenuating the quantified values of the signals to be applied.

8. The matrix display device according to claim 7, wherein the attenuation function attenuates the quantified values of the light intensity signals to be applied respectively to the first two pixels, according to the following relationship:

Si=b·

exp(−

a·

S1i)·

S1i, for i=1;

4, a and b being real parameters.

9. The matrix display device according to claim 4, wherein the second two pixels of each arrangement are configured to display two colors which, by combination, make it possible to restore the color associated with the first image.

10. The matrix display device according to claim 9, wherein the controller is configured to apply, to the second two pixels of each of the arrangements of the display device for which the pixels of the arrangements of said second image that correspond thereto have a quantified light intensity value less than a determined threshold, values deriving from a combination of the quantified values of the light intensity signals S12 and S13 of the first image, according to the following relationships:

S2=a*(S12+S13)/2,

S3=b*(S12+S13)/2;

a and b being real parameters, the sum of which equals 2.

11. The matrix display device according to claim 1, further comprising:

a first controller interfacing with said first plurality of pixels of each arrangement and corresponding to the first image, and

a second controller interfacing with the other pixels of each arrangement and corresponding to said second image.

12. The matrix display device according to claim 1, wherein

the first image is an essentially monochrome image produced by a night vision sensor, an infrared sensor, or an X-ray imaging sensor, and

the second image is an essentially monochrome image produced by an infrared sensor, an echography sensor, or a monochrome or two-color symbology image.