Patent
Multi-primary color display
| العنوان: | Multi-primary color display |
|---|---|
| Patent Number: | 7,771,098 |
| تاريخ النشر: | August 10, 2010 |
| Appl. No: | 11/963917 |
| Application Filed: | December 24, 2007 |
| مستخلص: | A multi-primary color display has a backlight source and pixels. Each pixel has at least four sub pixels, which display red primary color, green primary color, blue primary color and a fourth primary color, respectively. At the peak position of the fourth primary color located in the wavelength range between 550 nm˜600 nm, the relative luminance ratio of the fourth primary color to the green primary color is greater than or equal to 0.5. When the ratio of the relative luminance meets the requirement and the relative luminance of a newly added primary color is greater than a certain value, the colors beyond the three-primary color gamut, which includes natural colors and other colors outside the natural color gamut, can be reproduced. |
| Inventors: | Chu Ke, Hui (Hsin-Chu, TW); Chan, Chih-Cheng (Hsin-Chu, TW); Uei, Guo-Feng (Hsin-Chu, TW) |
| Assignees: | Au Optronics Corporation (Hsin-Chu, TW) |
| Claim: | 1. A display device, comprising: a backlight source; and a plurality of pixels, each of which has at least four sub pixels including red primary color, green primary color, blue primary color, and a fourth primary color; wherein the relative luminance ratio of the fourth primary color to the red primary color is greater than or equal to 1 at the peak position of the fourth primary color located in the wavelength range between 550 nm˜600 nm. |
| Claim: | 2. The display device of claim 1 , wherein the fourth primary color is yellow primary color. |
| Claim: | 3. A display device, comprising: a backlight source; and a plurality of pixels, each of which has at least four sub pixels including red primary color, green primary color, blue primary color, and a fourth primary color; wherein the relative luminance ratio of the fourth primary color to the green primary color is greater than or equal to 0.5 at the peak position of the fourth primary color located in the wavelength range between 550 nm˜600 nm. |
| Claim: | 4. The display device of claim 3 , wherein the fourth primary color is yellow primary color. |
| Claim: | 5. A display device, comprising: a backlight source; and a plurality of pixels, each of which has at least four sub pixels including red primary color, green primary color, blue primary color, and a fourth primary color; wherein the ratio of the total relative luminances of the fourth primary color and the red primary color is greater than or equal to 2 in the wavelength range between 550 nm˜600 nm. |
| Claim: | 6. The display device of claim 5 , wherein the fourth primary color is yellow primary color. |
| Claim: | 7. A display device, comprising: a backlight source; and a plurality of pixels, each of which has at least four sub pixels including red primary color, green primary color, blue primary color, and a fourth primary color; wherein the ratio of the total relative luminances of the fourth primary color and the green primary color is greater than or equal to 0.5 in the wavelength range between 550 nm˜600 nm. |
| Claim: | 8. The display device of claim 7 , wherein the fourth primary color is yellow primary color. |
| Claim: | 9. A display device, comprising: a backlight source; and a plurality of pixels, each of which has at least four sub pixels including red primary color, green primary color, blue primary color, and a fourth primary color; wherein the average relative luminance of the fourth primary color is greater than or equal to 0.03 in the wavelength range between 550 nm˜600 nm when the maximum of the backlight emitted by the backlight source and filters of the sub pixels of the fourth primary color are both normalized to unity. |
| Claim: | 10. The display device of claim 9 , wherein the fourth primary color is yellow primary color. |
| Claim: | 11. A display device, comprising: a backlight source; and a plurality of pixels, each of which has at least four sub pixels including red primary color, green primary color, blue primary color, and a fourth primary color; wherein the ratio of the total relative luminances of the fourth primary color and the green primary color is smaller than or equal to 10 in the wavelength range between 450 nm˜500 nm. |
| Claim: | 12. The display device of claim 11 , wherein the fourth primary color is cyan primary color. |
| Claim: | 13. A display device, comprising: a backlight source; and a plurality of pixels, each of which has at least four sub pixels including red primary color, green primary color, blue primary color, and a fourth primary color; wherein the ratio of the total relative luminances of the fourth primary color and the blue primary color is smaller than or equal to 10 in the wavelength range between 450 nm˜500 nm. |
| Claim: | 14. The display device of claim 13 , wherein the fourth primary color is cyan primary color. |
| Claim: | 15. A display device, comprising: a backlight source; and a plurality of pixels, each of which has at least four sub pixels including red primary color, green primary color, blue primary color, and a fourth primary color; wherein the average relative luminance of the fourth primary color is smaller than or equal to 10 in the wavelength range between 450 nm˜500 nm when the maximum of the backlight emitted by the backlight source and filters of the sub pixels of the fourth primary color are both normalized to unity. |
| Claim: | 16. The display device of claim 15 , wherein the fourth primary color is cyan primary color. |
| Current U.S. Class: | 362/561 |
| Patent References Cited: | 7006172 February 2006 Kawana et al. 7268748 September 2007 Brown Elliott 7545468 June 2009 Aoki 7573493 August 2009 Brown Elliott et al. 2006/0132679 June 2006 Sui et al. 2009/0141381 June 2009 Itou et al. 1716034 January 2006 1725274 January 2006 101006484 July 2007 2006-215234 August 2006 2007-140408 June 2007 2007-226084 September 2007 200521955 July 2005 200643890 December 2006 |
| Other References: | English language translation of abstract of TW 200521955 (published Jul. 1, 2005). cited by other English language translation of abstract of CN 1716034 (published Jan. 4, 2006). cited by other English language translation of abstract of CN 1725274 (published Jan. 25, 2006). cited by other English language translation of abstract of JP 2006-215234 (published Aug. 17, 2006). cited by other English language translation of abstract of TW 200643890 (published Dec. 16, 2006). cited by other English language translation of abstract of JP 2007-140408 (published Jun. 7, 2007). cited by other English language translation of abstract of CN 101006484 (published Jul. 25, 2007). cited by other English language translation of abstract of JP 2007-226084 (published Sep. 6, 2007). cited by other |
| Assistant Examiner: | Neils, Peggy A. |
| Primary Examiner: | Husar, Stephen F |
| Attorney, Agent or Firm: | Thomas, Kayden, Horstemeyer & Risley |
| رقم الانضمام: | edspgr.07771098 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |