IP Library › Granted Patent US 11,677,056
Granted Patent B2
US 11,677,056 · App. 16/983,962 · Granted Jun 13, 2023

Display apparatus and manufacturing method thereof

Inventors: Motonobu Takeya (Ansan-si, KR); Young Hyun Kim (Ansan-si, KR); Jong Ik Lee (Ansan-si, KR); Kwang Yong Oh (Ansan-si, KR)
Assignee: Seoul Semiconductor Co., Ltd.
H01L33/62H01L25/0753H01L27/124H01L27/1259H01L27/153H01L33/502H01L33/504H01L33/507H01L2224/48091H01L2224/48227H01L2933/0066
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Quick Facts
Patent No.
US 11,677,056
App. No.
16/983,962
Granted
Jun 13, 2023
Kind
B2
Abstract

A display apparatus including a panel substrate, a TFT panel part including a plurality of connection electrodes disposed on an upper surface of the panel substrate, and a light emitting diode part disposed on the TFT panel part and including a plurality of light emitting modules adjacent to each other, in which each of the light emitting modules includes a plurality of pixels, each of the pixels includes three sub-pixels, and the three sub-pixels include blue light emitting diodes, green light emitting diodes, and red light emitting diodes.

Claims (35)

1. A display apparatus comprising:

a panel substrate;

a TFT panel part comprising a plurality of connection electrodes disposed on an upper surface of the panel substrate; and

a light emitting diode part disposed on the TFT panel part and comprising a plurality of light emitting modules adjacent to each other,

wherein:

the plurality of light emitting modules comprises a plurality of supporting substrates;

each of the light emitting modules comprises a plurality of pixels disposed on one of the supporting substrates;

each of the pixels includes three sub-pixels;

the three sub-pixels comprise a blue light emitting diode, a green light emitting diode, and a red light emitting diode; and

the TFT panel part has an area greater than a combined area of the plurality of light emitting modules.

2. The display apparatus of claim 1 , wherein the TFT panel part further comprises a TFT drive circuit.

3. The display apparatus of claim 2 , wherein the TFT drive circuit is configured to drive the pixels in at least one of an active matrix and a passive matrix.

4. The display apparatus of claim 1 , further comprising an anisotropic conductive film between the TFT panel part and the light emitting diode part, the anisotropic conductive film comprising an adhesive organic insulation material and conductive particles dispersed therein.

5. The display apparatus of claim 4 , wherein:

the panel substrate longitudinally extends along a first direction; and

the anisotropic conductive film has conductivity in a second direction crossing the first direction and insulation property in the first direction.

6. The display apparatus of claim 1 , wherein the blue light emitting diodes, the green light emitting diodes, and the red light emitting diodes of each pixel are regularly arranged on the supporting substrate.

7. The display apparatus of claim 6 , wherein the supporting substrate includes at least one of a sapphire substrate, a gallium nitride substrate, a glass substrate, a silicon carbide substrate, a silicon substrate, a metal substrate, and a ceramic substrate.

8. The display apparatus of claim 6 , wherein the supporting substrate is flexible.

9. The display apparatus of claim 6 , wherein the supporting substrate comprises a plurality of conductive patterns on an upper surface thereof to be electrically connected to the light emitting diodes.

10. The display apparatus of claim 6 , wherein the blue light emitting diodes, the green light emitting diodes, and the red light emitting diodes are arranged at constant intervals in a matrix.

11. The display apparatus of claim 6 , wherein the light emitting diode part further comprises an insulation layer surrounding each of the light emitting diodes.

12. The display apparatus of claim 11 , wherein the light emitting diode part further comprises a blocking part on the support substrate.

13. The display apparatus of claim 12 , wherein:

the panel substrate longitudinally extends along a first direction; and

a thickness of the blocking part in a second direction crossing the first direction is greater than a thickness of the insulation layer in the second direction.

14. The display apparatus of claim 6 , wherein the blue light emitting diodes, the green light emitting diodes, and the red light emitting diodes are arranged at side by side on the same axis.

15. The display apparatus of claim 1 , further comprising an electrode substrate on which the light emitting diodes are formed.

16. The display apparatus of claim 15 , wherein the electrode substrate comprises a first electrode terminal and a second electrode terminal.

17. The display apparatus of claim 16 , wherein each of the first electrode terminal and the second electrode terminal penetrates through the electrode substrate.

18. The display apparatus of claim 17 , wherein each of the first electrode terminal and the second electrode terminal has a predetermined width on upper and lower surfaces of the electrode substrate.

19. The display apparatus of claim 1 , wherein each side of the TFT panel part is exposed from the combined area of the plurality of light emitting modules when viewed in plan.

20. The display apparatus of claim 1 , wherein:

each of the light emitting modules comprises a base layer on which the plurality of pixels are disposed; and

the base layers of adjacent light emitting modules are discrete from each other.

Continuity (6)
Continuation 16684422 · Nov 14, 2019
Continuation 15997620 · Jun 4, 2018
Continuation 15443132 · Feb 27, 2017
Provisional Application 62379501 · Aug 25, 2016
Provisional Application 62300249 · Feb 26, 2016
Related Publication 20200365786A1 · Nov 19, 2020
Cited By (1)
US 12,720,916