Display apparatus and electronic apparatus including the same

Patent metadata

Field	Value
Publication number	US-12499795-B2
Application number	US-202418605817-A
Country	US
Kind code	B2
Filing date	Mar 15, 2024
Priority date	Mar 22, 2023
Publication date	Dec 16, 2025
Grant date	Dec 16, 2025

Abstract

A display apparatus is disclosed that includes a data driver, a demux circuit, a first wiring mixing structure, a second wiring mixing structure, a display panel and a bending area. The data driver includes first to fourth output amplifiers. The demux circuit is configured to branch the first to fourth output amplifiers to first to eighth output lines through demux switching. The first wiring mixing structure is connected to the demux circuit. The second wiring mixing structure is connected to the first wiring mixing structure. The display panel includes data lines connected to the second wiring mixing structure. The bending area is disposed between the display panel and the data driver. The demux circuit is disposed between an integrated circuit area of the data driver and the bending area. The bending area includes a bending line for folding elements toward a rear surface of the display panel. The display panel is disposed on a first side of the bending line and the demux circuit and the integrated circuit area are disposed on a second side of the bending line.

First claim

What is claimed is:

1 . A display apparatus comprising:
a data driver including first to fourth output amplifiers; a demux circuit configured to branch the first to fourth output amplifiers to first to eighth output lines through demux switching; a first wiring mixing structure connected to the demux circuit; a second wiring mixing structure connected to the first wiring mixing structure; a display panel including data lines connected to the second wiring mixing structure; and a bending area disposed between the display panel and the data driver, wherein the demux circuit is disposed between an integrated circuit area of the data driver and the bending area, wherein the bending area includes a bending line for folding elements toward a rear surface of the display panel, wherein the display panel is disposed on a first side of the bending line and the demux circuit and the integrated circuit area are disposed on a second side of the bending line, and wherein the first wiring mixing structure and the second wiring mixing structure are serially connected between the demux circuit and the display panel.

2 . The display apparatus of claim 1 , wherein, when a first order of first output data generated by alternately demuxing the first to fourth output amplifiers is 1, 2, 3, 4, 5, 6, 7 and 8, a final order of final output data outputted by the second wiring mixing structure is 1, 4, 2, 3, 5, 8, 6 and 7.

3 . The display apparatus of claim 2 , wherein some of output data of the data driver are normal data directly applied to data lines of the display panel, and
wherein some of the output data of the data driver are border reduction data applied to data lines of the display panel through border reduction horizontal lines.

4 . The display apparatus of claim 3 , wherein, when the first order of the first output data generated by alternately demuxing the first to fourth output amplifiers is 1, 2, 3, 4, 5, 6, 7 and 8, the first output data having a number one order, a number two order, a number five order and a number six order are the normal data and the first output data having a number three order, a number four order, a number seven order and a number eight order are the border reduction data.

5 . The display apparatus of claim 2 , wherein the first, the fourth, the fifth and the eighth output lines of the demux circuit are activated by a first switching signal, and
wherein the second, the third, the sixth and the seventh output lines of the demux circuit are activated by a second switching signal.

6 . The display apparatus of claim 5 , wherein, when the first order of the first output data generated by alternately demuxing the first to fourth output amplifiers is 1, 2, 3, 4, 5, 6, 7 and 8, a second order of second output data of the demux circuit is 1, 2, 4, 3, 5, 6, 8 and 7.

7 . The display apparatus of claim 6 , wherein, when the second order which is an order of prior data of the first wiring mixing structure is 1, 2, 4, 3, 5, 6, 8 and 7, a third order which is an order of after data of the first wiring mixing structure is 1, 3, 2, 4, 6, 8, 5 and 7.

8 . The display apparatus of claim 7 , wherein, when the third order which is an order of prior data of the second wiring mixing structure is 1, 3, 2, 4, 6, 8, 5 and 7, the final order which is an order of after data of the second wiring mixing structure is 1, 4, 2, 3, 5, 8, 6 and 7.

9 . The display apparatus of claim 1 , wherein input terminals of the first wiring mixing structure include first to eighth A pads and output terminals of the first
wiring mixing structure include first to eighth B pads, wherein the first A pad is connected to the first B pad, wherein the second A pad is connected to the third B pad, wherein the third A pad is connected to the fourth B pad, wherein the fourth A pad is connected to the second B pad, wherein the fifth A pad is connected to the seventh B pad, wherein the sixth A pad is connected to the fifth B pad, wherein the seventh A pad is connected to the sixth B pad, and wherein the eighth A pad is connected to the eighth B pad.

10 . The display apparatus of claim 1 , wherein input terminals of the second wiring mixing structure include first to eighth B pads and output terminals of the second wiring mixing structure include first to eighth C pads,
wherein the first B pad is connected to the first C pad, wherein the second B pad is connected to the fourth C pad, wherein the third B pad is connected to the third C pad, wherein the fourth B pad is connected to the second C pad, wherein the fifth B pad is connected to the seventh C pad, wherein the sixth B pad is connected to the sixth C pad, wherein the seventh B pad is connected to the fifth C pad, and wherein the eighth B pad is connected to the eighth C pad.

11 . The display apparatus of claim 1 , wherein input terminals of the first wiring mixing structure include first to eighth A pads and output terminals of the first wiring mixing structure include first to eighth B pads,
wherein input terminals of the second wiring mixing structure include the first to eighth B pads and output terminals of the second wiring mixing structure include first to eighth C pads, wherein the first A pad is connected to the first B pad, wherein the second A pad is connected to the third B pad, wherein the third A pad is connected to the fourth B pad, wherein the fourth A pad is connected to the second B pad, wherein the fifth A pad is connected to the seventh B pad, wherein the sixth A pad is connected to the fifth B pad, wherein the seventh A pad is connected to the sixth B pad, wherein the eighth A pad is connected to the eighth B pad, wherein the first B pad is connected to the first C pad, wherein the second B pad is connected to the fourth C pad, wherein the third B pad is connected to the third C pad, wherein the fourth B pad is connected to the second C pad, wherein the fifth B pad is connected to the seventh C pad, wherein the sixth B pad is connected to the sixth C pad, wherein the seventh B pad is connected to the fifth C pad, and wherein the eighth B pad is connected to the eighth C pad.

12 . The display apparatus of claim 2 , wherein the first, the fourth, the fifth, the eighth, a ninth, a twelfth, a thirteenth and a sixteenth output lines of the demux circuit are activated by a first switching signal, and
wherein the second, the third, the sixth, the seventh, a tenth, an eleventh, a fourteenth and a fifteenth output lines of the demux circuit are activated by a second switching signal.

13 . The display apparatus of claim 12 , wherein the data driver further comprises fifth to eighth output amplifiers,
wherein, when the first order of first output data generated by alternately demuxing the first to eighth output amplifiers is 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 and 16, a second order of second output data of the demux circuit is 1, 2, 4, 3, 5, 6, 8, 7, 9, 10, 12, 11, 13, 14, 16 and 15.

14 . The display apparatus of claim 13 , wherein, when the second order which is an order of prior data of the first wiring mixing structure is 1, 2, 4, 3, 5, 6, 8, 7, 9, 10, 12, 11, 13, 14, 16 and 15, a third order which is an order of after data of the first wiring mixing structure is 1, 3, 5, 7, 2, 4, 6, 8, 10, 12, 14, 16, 9, 11, 13 and 15.

15 . The display apparatus of claim 14 , wherein, when the third order which is an order of prior data of the second wiring mixing structure is 1, 3, 5, 7, 2, 4, 6, 8, 10, 12, 14, 16, 9, 11, 13 and 15, the final order which is an order of after data of the second wir

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Seung-Jun
• Kim Tae-Ho
• Lee Yongsu
• Lee Jaewoo
• Cho Seung-Hwan

Classifications

• H10D86/441 Primary

  Interconnections, e.g. scanning lines · CPC title

• H10D86/60

  wherein the TFTs are in active matrices · CPC title

• G09G2310/0291

  Details of output amplifiers or buffers arranged for use in a driving circuit · CPC title

• G09G2310/0297

  Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns · CPC title

• G09G2310/027

  Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters · CPC title