Display apparatus with symmetric diffusion film
First Claim
Patent Images
1. A display apparatus, comprising:
- a touchscreen; and
a symmetric diffusion film (SDF), disposed above the touchscreen, and the SDF comprising at least two different materials, including a first material mixed with a second material, and the first material having a first refractive index while the second material having a second refractive index, wherein the first refractive index is different from the second refractive index, and wherein a half-width at half-maximum (HWHM) of the SDF for scattering light in a range of 2 degrees to 10 degrees.
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Abstract
A display apparatus at least comprises a touchscreen, and a symmetric diffusion film (SDF) disposed above the touchscreen. The SDF comprises at least two different materials, including a first material mixed with a second material. The first material has a first refractive index and the second material has a second refractive index, and the first refractive index is different from the second refractive index.
9 Citations
19 Claims
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1. A display apparatus, comprising:
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a touchscreen; and a symmetric diffusion film (SDF), disposed above the touchscreen, and the SDF comprising at least two different materials, including a first material mixed with a second material, and the first material having a first refractive index while the second material having a second refractive index, wherein the first refractive index is different from the second refractive index, and wherein a half-width at half-maximum (HWHM) of the SDF for scattering light in a range of 2 degrees to 10 degrees. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A display apparatus, comprising:
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a touchscreen; a symmetric diffusion film (SDF), disposed above the touchscreen, and the SDF comprising at least two different materials, including a first material mixed with a second material, and the first material having a first refractive index while the second material having a second refractive index, wherein the first refractive index is different from the second refractive index; a backlight module, disposed beneath the touchscreen for emitting light passing through the touchscreen and the SDF; and an upper polarizer and a lower polarizer, respectively disposed above and beneath the touchscreen wherein the backlight module is disposed beneath the lower polarizer, wherein the SDF is disposed between the upper polarizer and the touchscreen.
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16. A display apparatus, comprising:
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a touchscreen comprising a display module and a touch sensor coupled to the display module, wherein the display module comprises a first substrate, a second substrate and a display medium layer disposed between the first substrate and the second substrate; and a black matrix layer on one side of the second substrate, wherein the touch sensor comprises a sensing electrode layer with a pattern corresponding to the black matrix layer; and a symmetric diffusion film (SDF), disposed above the touchscreen, and the SDF comprising at least two different materials, including a first material mixed with a second material, and the first material having a first refractive index while the second material having second refractive index, wherein the first refractive index is different from the second refractive index. - View Dependent Claims (17, 18, 19)
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Specification