IMAGE DISPLAY APPARATUS

• US 20160004123A1
• Filed: 12/29/2014
• Published: 01/07/2016
• Est. Priority Date: 07/02/2014
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation), Toshiba Visual Solutions Corporation (Toshiba Corporation)
• Original Assignee: Toshiba Lifestyle Products & Services Corporation (Midea Group Co., Ltd), Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Tanabe, Harumi
• Application Number:
  US14/585,015
• Publication Number:
  US 20160004123A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02F 1/133603 with LEDs
• CPC Class Codes: G02F 1/133605 including specially adapted reflectors
• CPC Class Codes: G02F 1/133606 including a specially adapted diffusing, scattering or light controlling members
• CPC Class Codes: G02F 1/133608 including particular frames or supporting means
• CPC Class Codes: G02F 1/133611 including means for improving the brightness uniformity

Abstract

According to one embodiment, an image display apparatus including, a display which displays information, a light source includes a plurality of LED elements and a covers each covers each of the respective LED elements, a reflective member including a plurality of openings through which the light source is exposed, and which reflects illumination light from the LED elements, and a light control member, formed around each of the openings and being provided with a predetermined width in a radial direction of the openings, to control the reflection of the illumination light from each of the LED elements being reflected from the reflective member wherein the width of the light control member being less than half a center-to-center distance between the openings.

Claims

1. An image display apparatus comprising:

a display which displays information;

a light source includes a plurality of LED elements and a covers each covers each of the respective LED elements;

a reflective member including a plurality of openings through which the light source is exposed, and which reflects illumination light from the LED elements; and

a light control member, formed around each of the openings and being provided with a predetermined width in a radial direction of the openings, to control the reflection of the illumination light from each of the LED elements being reflected from the reflective member,

wherein the width of the light control member being less than half a center-to-center distance between the openings.

2. The image display apparatus of claim 1, wherein the light control member reduces a degree of reflection of the illumination light from each of the LED elements of the light source.

3. The image display apparatus of claim 2, wherein the light control member includes a member capable of selectively absorbing a spectrum to prevent variation of spectral distribution of the illumination light from each of the LED elements of the light source.

4. The image display apparatus of claim 2, wherein an area of the light control member is varied according to the center-to-center distance between the openings.

5. The image display apparatus of claim 4, wherein the light control member includes a member capable of selectively absorbing a spectrum to prevent variation of spectral distribution of the illumination light from each of the LED elements of the light source.

6. An image display apparatus comprising:

a display to display information;

a light source constituted by a plurality of LED elements and a cover which covers each of the respective LED elements;

a reflective member having a plurality of openings through which the light source is exposed, and configured to reflect illumination light from the LED elements; and

a light control member, formed around each of the openings and being provided with a predetermined area, to control the illumination light from each of the LED elements being reflected from the reflective member and to reflect the reflected light, an area of the light control member around each of the openings positioned with an interval greater than a predetermined distance being greater than the predetermined area when a center-to-center distance between the openings is greater than the predetermined distance.

7. The image display apparatus of claim 6, wherein the light control member reduces a degree of reflection of the illumination light from each of the LED elements of the light source.

8. The image display apparatus of claim 7, wherein the light control member includes a member capable of selectively absorbing a spectrum to prevent variation of spectral distribution of the illumination light from each of the LED elements of the light source.

9. The image display apparatus of claim 6, wherein if the center-to-center distance B between the openings of the light control member is greater than the predetermined distance A, a width of the light control member which sets the area of the light control member is B/A as great as a width obtained when the distance B is less than or equal to the distance A.

10. The image display apparatus of claim 9, wherein the light control member reduces a degree of reflection of the illumination light from each of the LED elements of the light source.

11. The image display apparatus of claim 10, wherein the light control member includes a member capable of selectively absorbing a spectrum to prevent variation of spectral distribution of the illumination light from each of the LED elements of the light source.