IP Library › Granted Patent US 9,852,696
Granted Patent B2
US 9,852,696 · App. 14/743,489 · Granted Dec 26, 2017

Display device

Inventors: Jinmin Chung (Yongin-si, KR); Sooyong Yoon (Seoul, KR); Sunggi Kim (Seoul, KR)
Assignee: Samsung Display Co., Ltd.
G09G3/3275G01J1/0271G01J1/0403G01J1/42G09G3/3225G01J1/32G06F1/1607G09G2320/0233G09G2320/0257G09G2320/045G09G2320/048G09G2320/0626G09G2360/14G09G2360/145G09G2360/147G09G2360/16
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Quick Facts
Patent No.
US 9,852,696
App. No.
14/743,489
Granted
Dec 26, 2017
Kind
B2
Abstract

A display device includes a first substrate, a second substrate disposed opposite to the first substrate, a connector connected to a first surface of each of the first and second substrates and covering at least a portion of side surfaces of each of the first and second substrates, a photo sensor disposed on the connector and facing the side surface of the first substrate, and a fixing member disposed between the first substrate and the connector, in which the photo sensor is inserted into the fixing member.

Claims (53)

1. A display device, comprising:

a first substrate comprising a display area and a non-display area;

a second substrate disposed opposite to the first substrate;

a connector connected to a first surface of each of the first and second substrates, the connector covering at least a portion of a side surface of each of the first and second substrates;

a photo sensor disposed on the connector and facing the side surface of the first substrate, the photo sensor configured to measure a luminance value of a pixel disposed on the non-display area; and

a fixing member disposed between the first substrate and the connector,

wherein the photo sensor is inserted into the fixing member.

2. The display device of claim 1 , wherein:

at least a portion of the first substrate is inserted into the fixing member; and

the fixing member comprises an aperture configured to pass light therethrough.

3. The display device of claim 2 , wherein

the photo sensor is inserted into the fixing member and faces the aperture of the fixing member.

4. The display device of claim 2 , wherein the fixing member comprises:

a first portion disposed on the first surface of the first substrate;

a second portion opposite to the first portion and disposed on a second surface of the first substrate; and

a side wall portion connecting the first and second portions,

wherein the side wall portion comprises an inserting groove.

5. The display device of claim 4 , wherein the photo sensor is disposed on the inserting groove.

6. The display device of claim 1 , wherein:

the fixing member contacts the first and second surfaces of the first substrate; and

the first surface is opposite to the second surface.

7. The display device of claim 1 , further comprising:

a driving-chip mounting film connected to the display panel, the driving-chip mounting film configured to apply a driving signal to the display panel; and

a printed circuit board (PCB) connected to the driving-chip mounting film.

8. The display device of claim 7 , wherein a first end portion of the connector is connected to the PCB.

9. The display device of claim 7 , wherein the fixing member is disposed between the driving-chip mounting films.

10. The display device of claim 1 , further comprising an optical film disposed between the photo sensor and the fixing member.

11. The display device of claim 1 , wherein the fixing member is connected to the connector.

12. The display device of claim 1 , wherein the fixing member further comprises a coupling protrusion.

13. The display device of claim 12 , wherein the connector further comprises a coupling hole into which the coupling protrusion is inserted.

14. The display device of claim 1 , wherein the connector is a flexible printed circuit board (FPCB).

15. A display device, comprising:

a first substrate comprising a display area and a non-display area;

a second substrate disposed opposite to the first substrate;

a connector connected to the first and second substrates and covering a portion of a side surface of at least one of the first and second substrates; and

a photo sensor disposed on the connector and facing the side surface of the first substrate,

wherein the photo sensor is configured to measure a luminance value of a pixel disposed on the non-display area.

16. The display device of claim 15 , further comprising a compensated image data generator configured to:

calculate a first compensation amount based on the measured luminance value and an accumulated light emission time of a first OLED disposed on the non-display area;

calculate a second compensation amount based on an accumulated light emission time of a second OLED disposed on the display area; and

compensate image data of the second OLED according to the second compensation amount.

17. The display device of claim 16 , wherein the compensated image data generator comprises:

a memory storing an initial luminance value;

a timer configured to measure an accumulated light emission time of the first OLED;

a data adder configured to accumulate and add image data corresponding to the second OLED disposed on the display area;

a compensation amount calculator configured to calculate the second compensation amount of image data corresponding to the accumulated light emission time of the second OLED, based on the measured luminance value, the initial luminance value, and the accumulated light emission time of the first OLED; and

an image data compensator configured to detect the accumulated light emission time of the second OLED and modify image data of the second OLED according to the second compensation amount that corresponds to the detected accumulated light emission time.

18. The display device of claim 17 , wherein the compensation amount calculator is configured to:

calculate a decreased luminance degree based on the measured luminance value and the initial luminance value; and

yield an increased accumulated light emission time corresponding to the calculated decreased luminance degree as the compensation amount.

19. The display device of claim 17 , wherein the compensated image data generator further comprises a lookup table configured to store the first compensation amount calculated by the compensation amount calculator according to corresponding accumulated light emission time of the first OLED.

20. The display device of claim 1 , wherein:

a portion of the first substrate comprising a chamfered edge is inserted to the fixing member.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 18, 2015
From: CHUNG, JINMIN; YOON, SOOYONG; KIM, SUNGGI
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 035863/0346 →
Priority Claims (1)
KR 10-2014-0130147 · Sep 29, 2014 · national
Continuity (1)
Related Publication 20160093251A1 · Mar 31, 2016