DISPLAY DEVICE AND REAR-VIEW MIRROR MODULE INCLUDING THE SAME

• US 20170355313A1
• Filed: 01/25/2017
• Published: 12/14/2017
• Est. Priority Date: 06/14/2016
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: PARK, Byoung-Hee, KIM, Joon-Youp, MOON, Jeong-Woo, CHUNG, Jin-Koo
• Granted Patent: US 10,449,901 B2
• Time in Patent Office: Days
• CPC Class Codes: B60R 1/083 Anti-glare mirrors, e.g. "day-night" mirrors
• CPC Class Codes: B60R 1/088 using a cell of electrically changeable optical characteristic, e.g. liquid-crystal or electrochromic mirrors
• CPC Class Codes: B60R 1/12 Mirror assemblies combined with other articles, e.g. clocks
• CPC Class Codes: B60R 2001/1215 with information displays
• CPC Class Codes: B60R 2001/1223 with sensors or transducers
• CPC Class Codes: B60R 2001/1253 with cameras, video cameras or video screens
• CPC Class Codes: G02F 1/155 Electrodes
• CPC Class Codes: G02F 1/157 Structural association of cells with optical devices, e.g. reflectors or illuminating devices
• CPC Class Codes: G02F 1/163 Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
• CPC Class Codes: G02F 2201/44 Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers
• CPC Class Codes: H10K 50/84 Passivation; Containers; Encapsulations
• CPC Class Codes: H10K 50/856 comprising reflective means
• CPC Class Codes: H10K 59/12 Active-matrix OLED [AMOLED] displays
• CPC Class Codes: H10K 59/121 characterised by the geometry or disposition of pixel elements
• CPC Class Codes: H10K 59/122 Pixel-defining structures or layers, e.g. banks
• CPC Class Codes: H10K 59/87 Passivation; Containers; Encapsulations

Abstract

A display device may comprise a transmittance control structure having a variable transmittance and a mirror type display panel disposed on a rear surface of the transmittance control structure. The mirror type display panel may comprise a substrate, a display member disposed on the substrate, the display member including a light emission region, a first transmission region, and a peripheral region surrounding the light emission region and the first transmission region, and a reflective member facing the substrate with respect to the display member, the reflective member including an opening region corresponding to the light emission region, a second transmission region corresponding to the first transmission region, and a reflective region surrounding the opening region and the second transmission region.

Claims

1. A display device comprising:

a transmittance control structure having a variable transmittance; and

a mirror type display panel disposed on a rear surface of the transmittance control structure,

wherein the mirror type display panel comprises;

a substrate;

a display member disposed on the substrate, the display member including a light emission region, a first transmission region, and a peripheral region surrounding the light emission region and the first transmission region; and

a reflective member facing the substrate with respect to the display member, the reflective member including an opening region corresponding to the light emission region, a second transmission region corresponding to the first transmission region, and a reflective region surrounding the opening region and the second transmission region.

2. The display device of claim 1, wherein the display member comprises:

a switching structure disposed on the substrate in the light emission region;

an insulation structure disposed on the substrate, the insulation structure covering the switching structure; and

an organic light emitting structure disposed on the insulation structure.

3. The display device of claim 2, wherein the organic light emitting structure comprises:

a first electrode disposed on the insulation structure in the light emission region;

a second electrode facing the first electrode; and

an organic light emitting layer disposed between the first electrode and the second electrode,

wherein the display member further comprises a pixel defining layer disposed on the insulation structure, the pixel defining layer partially covering the first electrode and defining the light emission region.

4. The display device of claim 3, wherein the second electrode is selectively disposed in the light emission region and the peripheral region, and a transmission window is defined by a sidewall of the second electrode and a top surface of the pixel defining layer.

5. The display device of claim 3, wherein the second electrode and the pixel defining layer are selectively disposed in the light emission region and the peripheral region, and a transmission window is defined by a sidewall of the second electrode, a sidewall of the pixel defining layer, and a top surface of the insulation structure.

6. The display device of claim 3, wherein the second electrode, the pixel defining layer, and the insulation structure are selectively disposed in the light emission region and the peripheral region, and a transmission window is defined by a sidewall of the second electrode, a sidewall of the pixel defining layer, a sidewall of the insulation structure, and a top surface of the substrate.

7. The display device of claim 3, wherein the switching structure comprises an active pattern, a gate electrode, a source electrode, and a drain electrode layered on the substrate,

wherein the insulation structure comprises:

a gate insulation layer disposed on the substrate, the gate insulation layer covering the active pattern;

an insulation interlayer disposed on the gate insulation layer, the insulation interlayer covering the gate electrode; and

a protective layer disposed on the insulation interlayer, the protective layer covering the source electrode and the drain electrode,

wherein the source electrode and the drain electrode contact the active pattern through the insulation interlayer and the gate insulation layer, and

wherein the first electrode is disposed on the protective layer, and contacts the drain electrode through the protective layer.

8. The display device of claim 7, wherein the second electrode, the pixel defining layer, and the protective layer are selectively disposed in the light emission region and the peripheral region, and a transmission window is defined by a sidewall of the second electrode, a sidewall of the pixel defining layer, a sidewall of the protective layer, and a top surface of the insulation interlayer.

9. The display device of claim 1, wherein the reflective member includes at least one selected from silver (Ag), aluminum (Ag), nickel (Ni), chromium (Cr), tungsten (W), vanadium (V), and molybdenum (Mo).

10. The display device of claim 1, wherein the mirror type display panel further comprises an encapsulation member facing the substrate with respect to the display member,

wherein the reflective member is disposed on one surface or an inside of the encapsulation member.

11. A rear-view mirror module comprising:

a transmittance control structure having a variable transmittance and including an opening portion;

a mirror type display panel disposed on a rear surface of the transmittance control structure; and

an illumination sensor disposed on a rear surface of the mirror type display panel,

wherein the mirror type display panel comprises;

a substrate;

a display member disposed on the substrate, the display member including a light emission region, a first transmission region, and a peripheral region surrounding the light emission region and the first transmission region; and

a reflective member facing the substrate with respect to the display member, the reflective member including an opening region corresponding to the light emission region, a second transmission region corresponding to the first transmission region, and a reflective region surrounding the opening region and the second transmission region,

wherein the opening portion, the first transmission region, and the second transmission region correspond to the illumination sensor.

12. The rear-view mirror module of claim 11, wherein the transmittance control structure includes an electrochromic material.

13. The rear-view mirror module of claim 12, wherein the transmittance control structure comprises:

a first transparent substrate and a second transparent substrate which face each other;

a first transparent electrode and a second transparent electrode disposed on facing surfaces of the first transparent substrate and the second transparent substrate, respectively; and

an electrochromic layer interposed between the first transparent electrode and the second transparent electrode.

14. The rear-view mirror module of claim 12, wherein the transmittance control structure has a higher light transmittance when an electrical signal is not applied and a lower light transmittance when the electrical signal is applied.

15. The rear-view mirror module of claim 11, wherein the mirror type display panel substantially overlaps the transmittance control structure.

16. The rear-view mirror module of claim 11, wherein an external light incident onto a front surface of the transmittance control structure is transferred to the illumination sensor through the opening portion, the second transmission region, and the first transmission region.

17. The rear-view mirror module of claim 11 further comprising:

a luminance controller controlling a luminance of the mirror type display panel; and

a transmittance controller controlling a transmittance of the transmittance control structure.

18. The rear-view mirror module of claim 17, wherein the luminance controller and the transmittance controller control the luminance of the mirror type display panel and the transmittance of the transmittance control structure, respectively, based on an intensity of the external light incident into the illumination sensor.

19. The rear-view mirror module of claim 18, wherein the luminance controller decreases the luminance of the mirror type display panel and the transmittance controller increases the transmittance of the transmittance control structure when the intensity of the external light is less than a predetermined intensity.

20. The rear-view mirror module of claim 18, wherein the luminance controller increases the luminance of the mirror type display panel and the transmittance controller decreases the transmittance of the transmittance control structure when the intensity of the external light is greater than a predetermined intensity.