Display panel and display device

Patent metadata

Field	Value
Publication number	US-11769448-B2
Application number	US-202218070892-A
Country	US
Kind code	B2
Filing date	Nov 29, 2022
Priority date	Oct 29, 2020
Publication date	Sep 26, 2023
Grant date	Sep 26, 2023

Abstract

A display device and a display panel including a first display region and a second display region. The light transmittance of the first display region is greater than the light transmittance of the second display region. At least one first display unit is disposed in the first display region. At least one second display unit, at least one drive unit, and at least one gating switch unit are disposed in the second display region. The at least one drive unit is connected to the input end of the at least one gating switch unit in a one-to-one manner. The first output end of each gating switch unit is connected to one of a first display unit and a second display unit and the second output end of the each gating switch unit is connected to the other one of the first display unit and the second display unit.

First claim

What is claimed is:

1. A display panel, comprising a first display region and a second display region,
wherein the second display region is at least partially disposed around the first display region, and a light transmittance of the first display region is greater than a light transmittance of the second display region;
at least one first display unit is disposed in the first display region, and at least one second display unit, at least one drive unit, and at least one gating switch unit are disposed in the second display region,
each gating switch unit comprises an input end, a first output end, and a second output end, the at least one drive unit is connected to an input end of the at least one gating switch unit in a one-to-one manner, and the first output end of each gating switch unit is connected to one of a first display unit and a second display unit, and the second output end of the each gating switch unit is connected to the other one of the first display unit and the second display unit; and
each gating switch unit is configured to gate the input end and the first output end of the each gating switch unit, or gate the input end and the second output end of the each gating switch unit in a time-division manner.

2. The display panel according to claim 1 , wherein the each gating switch unit is switched from gating the input end and the first output end to gating the input end and the second output end, or from gating the input end and the second output end to gating the input end and the first output end between frames.

3. The display panel according to claim 2 , wherein the each gating switch unit switches a gating path in a vertical blanking interval between frames.

4. The display panel according to claim 2 , wherein the each gating switch unit switches between every two adjacent frames or every a plurality of frames when switching a path of the each gating switch unit between frames.

5. The display panel according to claim 1 , further comprising a first control signal line and a second control signal line, wherein the each gating switch unit comprises a first switch subunit and a second switch subunit; and
a first end of the first switch subunit and a first end of the second switch subunit are connected to the at least one drive unit, a second end of the first switch subunit is connected to the first display unit, a control end of the first switch subunit is connected to the first control signal line, a second end of the second switch subunit is connected to the second display unit, and a control end of the second switch subunit is connected to the second control signal line.

6. The display panel according to claim 5 , wherein the first switch subunit comprises a first switch transistor and the second switch subunit comprises a second switch transistor; and a channel type of the first switch transistor and a channel type of the second switch transistor are the same.

7. The display panel according to claim 5 , wherein in a same vertical blanking interval, a time when the first switch subunit is turned on lags behind a time when the second switch subunit is turned off, or a time when the second switch subunit is turned on lags behind a time when the first switch subunit is turned off.

8. The display panel according to claim 1 , further comprising a first control signal line and a second control signal line, wherein the each gating switch unit comprises a first switch subunit and a second switch subunit; and
a first end of each first switch subunit and a first end of each second switch subunit are connected to the at least one drive unit, a control end of each first switch subunit is connected to the first control signal line, second ends of i first switch subunits are connected to the at least one first display unit, and second ends of (n−i) first switch subunits are connected to the at least one second display unit; a control end of each second switch subunit is connected to the second control signal line, second ends of (n−i) second switch subunits are connected to the at least one first display unit, and second ends of i second switch subunits are connected to the at least one second display unit, wherein i is an integer greater than or equal to 1 and less than n, and n is a number of the at least one first display unit.

9. The display panel according to claim 8 , wherein the at least one first display unit comprises at least one color display unit; the at least one second display unit comprises at least one color display unit; a type of the at least one color display unit of the at least one first display unit is same as a type of the at least one color display unit of the at least one second display unit; and each two color display units with a same type in the first display unit and the second display unit are connected to a same drive unit.

10. The display panel according to claim 1 , further comprising a first control signal line and a second control signal line, wherein the each gating switch unit comprises a first switch subunit and a second switch subunit; and an array arrangement of the at least one first display unit is the same as an array arrangement of the at least one second display unit; and
a first end of the first switch subunit and a first end of the second switch subunit are connected to the at least one drive unit; a control end of each first switch subunit is connected to the first control signal line, and a control end of each second switch subunit is connected to the second control signal line; each first display unit in an odd-numbered column is connected to a second end of a corresponding first switch subunit, and each first display unit in an even-numbered column is connected to a second end of a corresponding second switch subunit; and each second display unit in an odd-numbered column is connected to a second end of a corresponding second switch subunit, and each second display unit in an even-numbered column is connected to a second end of a corresponding first switch subunit; or
each first display unit in an even-numbered column is connected to a second end of a corresponding first switch subunit, and each first display unit in an odd-numbered column is connected to a second end of a corresponding second switch subunit; and each second display unit in an even-numbered column is connected to a second end of a corresponding second switch subunit, and each second display unit in an odd-numbered column is connected to a second end of a corresponding first switch subunit.

11. The display panel according to claim 1 , further comprising at least one data line, wherein the at least one data line is connected to the at least one drive unit in a one-to-one manner, and one of the at least one data line is configured to provide a first data signal and a second data signal for one of the at least one drive unit in a time-division manner.

12. The display panel according to claim 1 , wherein the first display region is a region corresponding to a camera.

13. The display panel according to claim 1 , wherein the first display unit is a light emission element, and the light emission element comprises a first electrode, a light emission layer, and a second electrode, wherein the first electrode, the light emission layer, and the second electrode are arranged in a stacked manner.

14. The display panel according to claim 1 , wherein the second display region comprises a transition region and the transition region is a transition region for the first display region and a conventional display region.

15. The display panel according to claim 1 , further comprising a third display region, wherein the third

Assignees

• Hefei Visionox Tech Co Ltd

Inventors

• Mi Lei
• Feng Hongqing
• Lu Jianjun

Classifications

• G09G3/32 Primary

  semiconductive, e.g. using light-emitting diodes [LED] · CPC title

• G09G2300/0465

  Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness · CPC title

• G09G2310/0275

  Details of drivers for data electrodes, other than drivers for liquid crystal, plasma or OLED displays, not related to handling digital grey scale data or to communication of data to the pixels by means of a current · CPC title

• G09G2320/0247

  Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes · CPC title

• G09F9/302 Primary

  characterised by the form or geometrical disposition of the individual elements · CPC title