Coretronic Corporation

Nano Precision Taiwan Limited

Chao-Hung Weng

Tzeng-Ke Shiau

Ming-Dah Liu

Ching-Shiang Li

Wei-Chung Chao

Hao-Jan Kuo

Chih-Jen Tsang

Min-Yi Hsu

Jiun-Chian Liao

Hung-tse Lin

Ming-Ta Ke

Fu-Ming Chuang

Shang-Wei Chen

Han-Wen Tsai

Ming-Feng Kuo

Kuan-Wen Liu

Wen-Hsin Lo

Chang-Cheng Liu

Ching-Nan Chuang

Hung-Tse Lin

Bih-Chang Wang

Chun-Yu Liao

A display device including a display module and an illuminating module is disclosed. The illuminating module is disposed on a display surface of the display module, and includes a light source, a light guide plate, and an optical film. The optical film is disposed between the display module and the light guide plate, and includes a basal layer and a microstructure layer. The microstructure layer is disposed between a surface of the basal layer and the light guide plate, and includes multiple microstructures. Each microstructure includes a first surface and a second surface. A first angle is between the first surface and a datum plane. A second angle is between the second surface and the datum plane. The first angle and the second angle are greater than or equal to 40 degrees and less than or equal to 90 degrees.

Optical film including microstructure layer and display device including the same

An optical film includes a grid layer having a first surface, a second surface, light-shading portions, and light-transmitting portions. The light-shading portions and the light-transmitting portions are located between the first surface and the second surface, and the light-shading portions and the light-transmitting portions are alternately arranged along the first surface. Each light-shading portion has a third surface, a fourth surface, a fifth surface, a sixth surface, and a seventh surface. An angle between the fourth and third surfaces is A1, an angle between the fifth and third surfaces is A2, an angle between the sixth and second surfaces is A3, and an angle between the seventh and second surfaces is A4. Wherein 85°<A1≤90°, 85°<A2≤90°, 0°<A3<85°, 0°<A4<85°, A2≠A4, and A1≠A3. A display device is also provided.

Optical film and display device

A light guide plate has a light-incident surface, a bottom surface, a light-emitting surface, first microstructures and second microstructures. The bottom surface is opposite to the light-emitting surface, the light-incident surface is connected between the bottom surface and the light-emitting surface. The first microstructures protrude from the bottom surface and are arranged at intervals along a direction parallel to the light-incident surface and extend from the light-incident surface in a predetermined direction. The second microstructures are disposed between the first microstructures away from the light-incident surface, and each them includes light-adjusting blocks protruding from the bottom surface and arranged along the predetermined direction. Each first microstructure has a first height, and each light-adjusting block has a second height smaller than the first height. The light guide plate has a reduced horizontal viewing angle and a maintained luminance. A backlight module including the light guide plate is of scratch resistance.

Light guide plate and backlight module

A light source module includes a light guide plate, a light source, a first prism sheet, a second prism sheet and a third prism sheet. The light guide plate includes a light emitting surface, a bottom surface and a light incident surface. The light source is disposed on the light incident surface and emits a beam into the light guide plate through the light incident surface. The first prism sheet is disposed on the light emitting surface and includes a plurality of first prism units located between the light emitting surface and the second prism sheet. The second prism sheet includes a plurality of second prism units extending in a first direction and located between the first prism sheet and the third prism sheet. The third prism sheet includes a plurality of third prism units extending in a second direction. The first direction is perpendicular to the second direction.

Light source module and prism sheet thereof

A light source module includes a light guide plate, a light source, a first prism sheet and a reflection sheet. The light guide plate includes a light exit surface, a bottom surface opposite to the light exit surface, and a light entrance surface connected to the light exit surface and the bottom surface. The light source is disposed beside the light entrance surface and adapted to emit a light beam to the light entrance surface. The first prism sheet is disposed on the light exit surface and includes first prism units. A surface of the first prism units faces away from the light exit surface. The reflection sheet is disposed on the bottom surface. The light guide plate is located between the reflection sheet and the first prism sheet. The reflection sheet includes microstructures. A surface of the microstructures faces the bottom surface of the light guide plate.

Light source module

A light turning film includes a light incident surface with first and second pluralities of first optical microstructures and a plurality of second optical microstructures; and a light emitting surface opposite to the light incident surface. The first optical microstructures and the second optical microstructures protrude outward from the light turning film, such that the height of one of the first and second optical structures is equal to or less than two thirds of the height of the other one of the first and second optical structures. The light turning film might be included in a light source module for a display apparatus.

Display apparatus with light source module having light turning film with micro structures with different heights

A light adjusting sheet includes a base and a first light adjusting structure layer. The base includes a first surface and a second surface opposite to the first surface. The first light adjusting structure layer is disposed on the first surface of the base, and the first light adjusting structure layer includes a plurality of light adjusting structures. Each light adjusting structure includes a major axis, a minor axis and a thickness, wherein the major axis of the light adjusting structure is in parallel with an extending direction. A ratio of a length of the minor axis to a length of the major axis is between 0.093 and 0.6, and the thickness is between 2 &#x3bc;m to 6 &#x3bc;m. A backlight module using the light adjusting sheet can achieve high brightness and large viewing angle.

Light adjusting sheet and backlight module using the same

A backlight module includes a light guide plate (LGP), a light source, and at least one prism sheet. The LGP includes a light emitting surface, a bottom surface, a light incident surface, and a plurality of first microstructures on the bottom surface. Each of the first microstructure is a recessed structure and includes a first surface and a second surface. An included angle between the first surface and the bottom surface ranges from 15 degrees to 27 degrees. An included angle between the second surface and the bottom surface ranges from 50 degrees to 90 degrees. The light source provides a light beam, and an included angle between a light emitting direction of the light beam emitted from the light emitting surface of the LGP and a normal direction of the light emitting surface is greater than 30 degrees. The prism sheet is disposed above the light emitting surface.

Light guide plate and backlight module using the same

A beam splitting film includes a light transmissive plate, a plurality of cylindrical lenticular lenses, and a plurality of strip-shaped protrusion groups. The light transmissive plate has a first surface and a second surface. The cylindrical lenticular lenses are disposed on the first surface. The strip-shaped protrusion groups are disposed on the second surface. Each of the strip-shaped protrusion groups includes at least two strip-shaped protrusions. Each of the strip-shaped protrusion groups corresponds to one of the cylindrical lenticular lenses. A distance between an orthographic projection of a geometric center of each of the strip-shaped protrusion groups on the first surface and an orthographic projection of a geometric center of the corresponding cylindrical lenticular lens on the first surface is less than ten times of a distance between the geometric centers of two adjacent cylindrical lenticular lenses. A backlight module and a stereo display apparatus are also provided.

Beam splitting film, backlight module, and stereo display apparatus

A light emitting diode package includes a substrate, a plurality of light emitting diode chips, a fluorescence layer, and a plurality of reflecting layers. The light emitting diode chips, the fluorescence layer, and the reflecting layers are disposed on the substrate. The fluorescence layer covers the light emitting diode chips, and the reflecting layers are disposed right above the light emitting diode chips, respectively.

Light emitting diode package

An optical film includes a light transmissive substrate having a first surface and a second surface opposite thereto, strip protrusions on the first surface, and protruding structures on crest lines of the strip protrusions. Each strip protrusion has two strip surfaces. Each protruding structure has a protruding end protruding from the crest line of the corresponding strip protrusion and two wing portions on the strip surfaces of the corresponding strip protrusion. Each wing portion extends from the protruding end to a place between the crest line and a valley line. A length of the protruding structure parallel to an extension direction of the crest line is L, a width of the protruding structure perpendicular to the crest line is W, and L/W&#x2267;1.2. At least one of a moir&#xe9; phenomenon, a local adherence phenomenon, a scratching phenomenon, and a wearing phenomenon with other optical devices is effectively mitigated.

Optical film

A brightness enhancement film including a light transmissive substrate, convex lens portions, concave lens portions, and a reflective layer is provided. The light transmissive substrate has a first surface and a second surface opposite to the first surface. The convex lens portions are disposed on the first surface. Each of the convex lens portions has a curved convex surface facing away from the light transmissive substrate. The concave lens portions are disposed on the first surface. The convex lens portions and the concave lens portions are alternately arranged. Each of the concave lens portions has a curved concave surface facing away from the light transmissive substrate. A wavy continuous curve surface is formed by the curved convex surfaces and the curved concave surfaces. The reflective layer is disposed on the second surface and has light passing openings respectively on the optical axes of the convex lens portions.

Brightness enhancement film and backlight module

A light guide plate has a light emitting surface, a bottom surface opposite to the light emitting surface, a light incident surface, and a side surface opposite to the light incident surface. The light incident and side surfaces are connected between the light emitting and bottom surfaces. Light guide units are disposed on the bottom surface. Each light guide unit extends along a first direction. The first direction is towards the side surface from the light incident surface. Each light guide unit includes geometric patterns and stripe patterns for cascading the geometric patterns. Micro structures are disposed in the geometric patterns and the stripe patterns. Width of the geometric pattern along a second direction perpendicular to the first direction is greater than that of the stripe pattern. The light guide plate improves uniformity of a plane light source emitting from the light emitting surface of the light guide plate.

Light guide plate having micro structures arranged in geometric and stripe patterns

A backlight module includes a lighting unit and a brightness enhancement sheet. The brightness enhancement sheet is disposed beside the lighting unit. The brightness enhancement sheet includes a light-transmissive substrate, a plurality of lenses, a reflective layer, and a diffusion layer. The light-transmissive substrate has a first surface and a second surface opposite to the first surface. The first surface is located between the second surface and the lighting unit. The lenses are disposed on the first surface. The reflective layer is disposed on the second surface. The reflective layer has a plurality of light-transmissive openings respectively located on the optical axes of the lenses. The diffusion layer is disposed on the reflective layer and covers the light-transmissive openings. The reflective layer is disposed between the diffusion layer and the second surface. A liquid crystal display apparatus is also provided.

Backlight module and liquid crystal display apparatus

A beam splitting film including a light transmissive plate and a plurality of strip protrusion groups is provided. The light transmissive plate has a first surface and a second surface. The strip protrusion groups are disposed on the second surface. Each of the strip protrusion groups includes a first strip protrusion and a second strip protrusion. The first strip protrusion has a first strip surface and a second strip surface inclined relative to the second surface. The second strip protrusion has a third strip surface and a fourth strip surface inclined relative to the second surface. An average slope of the first strip surface is not equal to an average slope of the third strip surface. An average slope of the second strip surface is not equal to an average slope of the fourth strip surface. A backlight module and a stereo display apparatus are also provided.

Growing community of inventors

Hsin-Chu, Taiwan

Chao-Hung Weng