LIQUID CRYSTAL DISPLAY DEVICE

• US 20130278873A1
• Filed: 06/21/2013
• Published: 10/24/2013
• Est. Priority Date: 07/14/2008
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: ENOMOTO, Hiromi
• Granted Patent: US 8,582,065 B1
• Time in Patent Office: Days
• US Class Current: 349/96
• CPC Class Codes: G02F 1/133305 Flexible substrates, e.g. plastics, organic film
• CPC Class Codes: G02F 1/133504 Diffusing, scattering, diffracting elements associated to illuminating devices G02F1/133606
• CPC Class Codes: G02F 1/133536 Reflective polarizers G02F1/13362 takes precedence

Abstract

It is an object of the present invention to provide a liquid crystal display device with a good display quality, and a manufacturing method of such a liquid crystal display device.

A liquid crystal display device (10) includes a liquid crystal display panel (11) with a display surface (20) defining a recessed curved surface having curvature of 1/500- 1/50 (1/mm), and with a scattering section which is arranged parallel to the display surface (20), which defines a recessed curved surface having curvature of 1/500- 1/50 (1/mm), and in which a plurality of elongated regions (A-C) having different haze values are arranged in parallel with each other from a middle section of the curved surface toward both end sections in the curving direction. The haze values of the plurality of elongated regions (A-C) arranged in parallel with each other vary in a step-wise manner from the middle section of the curved surface toward the both end sections in the curving direction.

Claims

1. A liquid crystal display device, comprising:

a liquid crystal display panel with a display surface defining a recessed curved surface having curvature of 1/500- 1/50 (1/mm), and with a reflection section which is arranged parallel to the display surface, which defines a recessed curved surface having curvature of 1/500- 1/50 (1/mm), and in which a plurality of elongated regions having different light reflectivities are arranged in parallel with each other from a middle section of the curved surface toward both end sections in the curving direction,

wherein the light reflectivities of the plurality of elongated regions arranged in parallel with each other vary in a step-wise manner from the middle section of the curved surface toward the both end sections in the curving direction.

2. The liquid crystal display device of claim 1, wherein

the elongated regions of the reflection section are a first region provided in the middle section of the curved surface, where the light reflectivity is equal to or greater than 0% and less than 5%;

second regions adjoining the middle section in a direction toward the both end sections of the curved surface, where the light reflectivity is equal to or greater than 5% and less than 10%; and

third regions adjoining the second regions in the direction toward the both end sections of the curved surface, where the light reflectivity is equal to or greater than 10% and less than 15%; and

the elongated regions of the reflection section are arranged so that the light reflectivities are increased from the middle section toward the both end sections in the curving direction.

3. The liquid crystal display device of claim 1, wherein

the elongated regions of the reflection section are a first region provided in the middle section of the curved surface, where the light reflectivity is equal to or greater than 10% and less than 15%;

second regions adjoining the middle section in a direction toward the both end sections of the curved surface, where the light reflectivity is equal to or greater than 5% and less than 10%; and

third regions adjoining the second regions in the direction toward the both end sections of the curved surface, where the light reflectivity is equal to or greater than 0% and less than 5%; and

the elongated regions of the reflection section are arranged so that the light reflectivities are decreased from the middle section toward the both end sections in the curving direction.

4. The liquid crystal display device of claim 1, wherein

the reflection section is a polarizer having a surface to which an anti-reflection process is applied.

5. The liquid crystal display device of claim 4, wherein

the polarizers are provided on front and rear sides of the liquid crystal display panel.

6. A liquid crystal display device, comprising:

a liquid crystal display panel with a display surface defining a raised curved surface having curvature of 1/500- 1/50 (1/mm), and with a reflection section which is arranged parallel to the display surface, which defines a raised curved surface having curvature of 1/500- 1/50 (1/mm), and in which a plurality of elongated regions having different light reflectivities are arranged in parallel with each other from a middle section of the curved surface toward both end sections in the curving direction,

wherein the light reflectivities of the plurality of elongated regions arranged in parallel with each other vary in a step-wise manner from the middle section of the curved surface toward the both end sections in the curving direction.

7. The liquid crystal display device of claim 6, wherein

the elongated regions of the reflection section are a first region provided in the middle section of the curved surface, where the light reflectivity is equal to or greater than 10% and less than 15%;

second regions adjoining the middle section in a direction toward the both end sections of the curved surface, where the light reflectivity is equal to or greater than 5% and less than 10%; and

third regions adjoining the second regions in the direction toward the both end sections of the curved surface, where the light reflectivity is equal to or greater than 0% and less than 5%; and

the elongated regions of the reflection section are arranged so that the light reflectivities are decreased from the middle section toward the both end sections in the curving direction.

8. The liquid crystal display device of claim 6, wherein

the elongated regions of the reflection section are a first region provided in the middle section of the curved surface, where the light reflectivity is equal to or greater than 0% and less than 5%;

second regions adjoining the middle section in a direction toward the both end sections of the curved surface, where the light reflectivity is equal to or greater than 5% and less than 10%; and

third regions adjoining the second regions in the direction toward the both end sections of the curved surface, where the light reflectivity is equal to or greater than 10% and less than 15%; and

the elongated regions of the reflection section are arranged so that the light reflectivities are increased from the middle section toward the both end sections in the curving direction.

9. The liquid crystal display device of claim 6, wherein

the reflection section is a polarizer having a surface to which an anti-reflection process is applied.

10. The liquid crystal display device of claim 9, wherein

the polarizers are provided on front and rear sides of the liquid crystal display panel.