SUBSTRATE, PANEL, DETECTION DEVICE AND ALIGNMENT DETECTION METHOD

• US 20190311663A1
• Filed: 10/31/2018
• Published: 10/10/2019
• Est. Priority Date: 11/01/2017
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd., Ordos Yuansheng Optoelectronics Co., Ltd. (BOE Technology Group Co., Ltd.)
• Original Assignee: BOE Technology Group Co., Ltd., Ordos Yuansheng Optoelectronics Co., Ltd. (BOE Technology Group Co., Ltd.)
• Inventors: ZHAO, Pucha, ZHANG, Guoqing, BAI, Xiaopeng, WANG, Weifeng, DANG, Yanbin, GUO, Zhixin, WANG, Xingliang, CHEN, Haotian
• Granted Patent: US 11,232,727 B2
• Time in Patent Office: Days
• CPC Class Codes: G02F 1/13 based on liquid crystals, e.g. single liquid crystal display cells
• CPC Class Codes: G09G 2330/12 Test circuits or failure detection circuits included in a display system, as permanent part thereof
• CPC Class Codes: G09G 3/006 Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays testing individual LED's G01R31/2635; testing lamps G01R31/44; testing of optical features of LCD displays G02F1/1309
• 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: H10K 59/00 Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00

Abstract

A substrate, a panel, a detection device and an alignment detection method are provided. The substrate includes first signal connection pins arranged in parallel side by side and at least one first alignment detection pin, wherein the at least one first alignment detection pin is located on at least one side of the first signal connection pins in an arrangement direction of the first signal connection pins, and arranged in parallel with the first signal connection pins.

Claims

1. A substrate, comprising:

first signal connection pins arranged in parallel side by side;

at least one first alignment detection pin, which is located on at least one side of the first signal connection pins in an arrangement direction of the first signal connection pins, and arranged in parallel with the first signal connection pins.

2. The substrate according to claim 1, further comprising a working region, wherein the working region is provided with signal lines arranged in parallel to each other;

each of the first signal connection pins has a first end and a second end; and

the first end of each of the first signal connection pins is electrically connected with one of the signal lines.

3. The substrate according to claim 1, wherein a number of the first alignment detection pins located on each side of the first signal connection pins is 1.

4. The substrate according to claim 1, wherein the at least one first alignment detection pin is suspended.

5. The substrate according to claim 1, wherein a conductivity of a material of the at least one first alignment detection pin is greater than a conductivity of a material of the first signal connection pins.

6. A panel, comprising the substrate according to claim 1.

7. A detection device, comprising:

second signal connection pins arranged in parallel side by side;

second alignment detection pins, located on at least one side of the second signal connection pins in an arrangement direction of the second signal connection pins, and arranged in parallel with the second signal connection pins.

8. The detection device according to claim 7, further comprising:

a test circuit, wherein each of the second signal connection pins has a first end and a second end, and the test circuit is electrically connected to the first end of each of the second signal connection pins and sends test signals to the second signal connection pins; and

an alignment circuit, which is electrically connected to the second alignment detection pins and sends alignment signals to the second alignment detection pins and receives alignment detection result signals from the second alignment detection pins.

9. The detection device according to claim 8, wherein the second signal connection pins are configured to receive the test signals from the test circuit, and the second alignment detection pins are configured to receive the alignment signals from the alignment circuit and return the alignment detection result signals.

10. The detection device according to claim 8, further comprising:

a control device, wherein the control device is configured to control turning on and turning off of the test circuit and the alignment circuit, and control the test circuit to send test signals to the second signal connection pins and control the alignment circuit to send alignment signals to the second alignment detection pins.

11. The detection device according to claim 7, wherein a number of the second alignment detection pins located on each side of the second signal connection pins is 3;

in an arrangement direction of the second alignment detection pins on the each side, the second alignment detection pin in the middle is used to receive the alignment signal from the alignment circuit, and accordingly, the second alignment detection pins on both sides of the second alignment detection pin in the middle are used to send the alignment detection result signal.

12. The detection device according to claim 7, wherein a number of the second alignment detection pins located on each side of the second signal connection pins is 2;

two second alignment detection pins close to the second signal connection pins are used to receive the alignment signal from the alignment circuit, and accordingly, two second alignment detection pins away from the second signal connection pins are used to send the alignment detection result signal;

or

two second alignment detection pins away from the second signal connection pins are used to receive the alignment signal from the alignment circuit, and accordingly, two second alignment detection pins close to the second signal connection pins are used to send the alignment detection result signal.

13. The detection device according to claim 7, wherein a conductivity of a material of the second alignment detection pins is greater than a conductivity of a material of the second signal connection pins.

14. An alignment detection method, comprising:

providing a substrate, wherein the substrate comprises;

a first signal connection pins arranged in parallel side by side;

at least one first alignment detection pin, which is located on at least one side of the first signal connection pins in an arrangement direction of the first signal connection pins, and arranged in parallel with the first signal connection pins;

providing a detection device, wherein the detection device comprises;

a second signal connection pins arranged in parallel side by side;

a second alignment detection pins, located on at least one side of the second signal connection pins in an arrangement direction of the second signal connection pins, and arranged in parallel with the second signal connection pins;

contacting the substrate with the detection device to electrically connect the first signal connection pins of the substrate with the second signal connection pins of the detection device one by one, and electrically connect each of the first alignment detection pins with at least one of the second alignment detection pin; and

before applying a detection signal to the second signal connection pins, inputting an alignment signal to the second alignment detection pins and performing an alignment detection to detect whether the first signal connection pins and the second signal connection pins are aligned accurately.

15. The alignment detection method according to claim 14, wherein the second alignment detection pins are arranged at an equal spacing and a first spacing is provided between two second alignment detection pins adjacent to each other, and at least one of the first alignment detection pins has a width greater than the first spacing.

16. The alignment detection method according to claim 15, wherein the first signal connection pins are periodically arranged and a second spacing is provided between two first signal connection pins adjacent to each other;

the second signal connection pins are periodically arranged and a third spacing is provided between two second signal connection pins adjacent to each other; and

the second spacing is equal to the third spacing;

in a case that the first signal connection pins and the second signal connection pins are aligned accurately, a fourth spacing is provided between the first alignment detection pin and the second alignment detection pin which are adjacent to each other;

wherein the fourth spacing is less than or equal to the second spacing.

17. The alignment detection method according to claim 14, wherein a number of the first alignment detection pin on each side of the first signal connection pins in the arrangement direction of the first signal connection pins is 1, and a number of the second alignment detection pins on each side of the second signal connection pins in the arrangement direction of the second signal connection pins is 3;

wherein among the three second alignment detection pins located on each side of the second signal connection pins, the first alignment detection pin is electrically connected to the second alignment detection pin located in the middle according to the arrangement direction of the second alignment detection pins; and

if no feedback of the alignment detection result signal on the second alignment detection pins on both sides of the second alignment detection pin located in the middle, it is determined that the first signal connection pins and the second signal connection pins are aligned accurately;

wherein among the three second alignment detection pins located on each side of the second signal connection pins, the first alignment detection pin is electrically connected to the second alignment detection pin located in the middle according to the arrangement direction of the second alignment detection pins, and also electrically connected to one of the second alignment detection pins located on both sides of the second alignment detection pin located in the middle; and

if one of the second alignment detection pins on the both sides of the second alignment detection pin located in the middle feeds back the alignment detection result signal, it is determined that the first signal connection pins and the second signal connection pins are aligned inaccurately.

18. The alignment detection method according to claim 14, wherein a number of the first alignment detection pin on each side of the first signal connection pins in the arrangement direction of the first signal connection pins is 1, and a number of the second alignment detection pins on each side of the second signal connection pins in the arrangement direction of the second signal connection pins is 2;

wherein between the two second alignment detection pins located on each side of the second signal connection pins, the second alignment detection pin close to the second signal connection pins is electrically connected to the first alignment detection pin; and

if there is no feedback of the alignment detection result signal on the second alignment detection pin away from the second signal connection pins, it is determined that the first signal connection pins and the second signal connection pins are aligned accurately;

wherein the two second alignment detection pins on a same side of the second signal connection pins are electrically connected with the first alignment detection pin, and if one of the two second alignment detection pins away from the second signal connection pins feeds back an alignment detection result signal, it is determined that the first signal connection pins and the second signal connection pins are aligned inaccurately;

wherein the two second alignment detection pins away from the second signal connection pins are electrically connected to the first alignment detection pin, and if the two second alignment detection pins close to the second signal connection pins have no feedback of an alignment detection result signal, it is determined that the first signal connection pins and the second signal connection pins are aligned accurately;

wherein the two second alignment detection pins at a same side of the second signal connection pins are electrically connected with the first alignment detection pin, and if one of the two second alignment detection pins close to the second signal connection pins feeds back an alignment detection result signal, it is determined that the first signal connection pins and the second signal connection pins are aligned inaccurately.

19. The alignment detection method according to claim 17, wherein the alignment detection result signal is an electrical signal.

20. The alignment detection method according to claim 19, wherein the electrical signal is a current.