IP Library › Granted Patent US 11,222,928
Granted Patent B2
US 11,222,928 · App. 16/826,541 · Granted Jan 11, 2022

Display architecture with reduced number of data line connections

Inventor: Michael Hack (Carmel, CA)
Assignee: Universal Display Corporation
H01L27/3218H01L27/3276H01L51/502H01L2251/5338
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Quick Facts
Patent No.
US 11,222,928
App. No.
16/826,541
Granted
Jan 11, 2022
Kind
B2
Abstract

Pixel arrangements for full-color displays are provided in which the number of data lines per pixel is less than the number of colors of sub-pixels within each pixel. RGB1B2-type arrangements are provided in which activation of one blue sub-pixel deactivates or prevents activation of the other.

Claims (23)

1. A full-color display device comprising:

a display panel comprising:

a plurality of full-color pixels, each of the plurality of full-color pixels comprising at least four colors of single-color sub-pixels, including a light blue sub-pixel and a deep blue sub-pixel; and

a plurality of data lines, each data line providing display information to at least one sub-pixel;

wherein the number of data lines per pixel in the display panel is less than the number of colors of single-color sub-pixels within each of the plurality of full-color pixels, and

wherein each pixel of the plurality of pixels always prevents the light blue sub-pixel and the deep blue sub-pixel from being used concurrently by the each pixel.

2. The display device of claim 1 , wherein at least some of the sub-pixels comprise an organic emissive material.

3. The display device of claim 1 , wherein at least some of the sub-pixels comprise a quantum dot architecture.

4. The display device of claim 1 , wherein at least some of the sub-pixels comprise microLEDs.

5. The display device of claim 1 , wherein each full-color pixel comprises four colors of sub-pixels and there are fewer than four data lines per pixel in the display panel.

6. The display device of claim 1 , wherein each deep blue sub-pixel is shared by at least two full-color pixels.

7. The display device of claim 6 , wherein each deep blue sub-pixel is shared by at least four full-color pixels.

8. The display device of claim 1 , further comprising driving circuitry capable of being configured to activate only one of the light blue sub-pixel and the deep blue sub-pixel at a time.

9. The display device of claim 1 , wherein the light blue sub-pixel and the deep blue sub-pixel are electrically connected to a single data line.

10. The display device of claim 9 , wherein the light blue sub-pixel and the deep-blue sub-pixel are driven by a common sub-pixel driving circuit.

11. The display device of claim 9 , wherein each of the light blue sub-pixel and the deep-blue sub-pixel are driven by separate sub-pixel driving circuit.

12. The display device of claim 11 , wherein the display panel comprises not more than 3 colors of organic emissive depositions.

13. The display device of claim 1 , further comprising a color-altering component in each pixel that converts light emitted by the light blue sub-pixel to deep blue.

14. The display device of claim 1 , wherein each of the light blue sub-pixel and the deep blue sub-pixel is electrically connected to a separate power supply line from the other.

15. The display device of claim 14 , wherein the power supply line for one of the light blue and deep blue sub-pixels is configured to activate a circuit that disables the other.

16. The display device of claim 1 , wherein the sub-pixels comprise a green sub-pixel and a red sub-pixel.

17. The display device of claim 1 , wherein the device comprises a device type selected from the group consisting of a flat panel display, a computer monitor, a medical monitor, a television, a billboard, a light for interior or exterior illumination and/or signaling, a heads-up display, a fully or partially transparent display, a flexible display, a laser printer, a telephone, a mobile phone, a tablet, a phablet, a personal digital assistant (PDA), a wearable device, a laptop computer, a digital camera, a camcorder, a viewfinder, a micro-display having an active area with a primary diagonal of 2 inches or less, a 3-D display, a virtual reality or augmented reality display, a vehicle, a video wall comprising multiple displays tiled together, a theater or stadium screen, and a sign.

18. A pixel structure for a full-color display, the pixel structure comprising sub-pixels of at least four colors including a light blue sub-pixel and a deep blue sub-pixel, wherein the pixel structure comprises electrical connections for a number of data lines per pixel that is less than the number of sub-pixels in the pixel structure and the pixel structure always prevents the light blue sub-pixel and the deep blue sub-pixel from being used concurrently.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 23, 2020
From: HACK, MICHAEL
To: UNIVERSAL DISPLAY CORPORATION
Reel/Frame 052204/0639 →
Continuity (2)
Provisional Application 62827301 · Apr 1, 2019
Related Publication 20200312922A1 · Oct 1, 2020