Display device with switchable viewing angle and operation method thereof
First Claim
Patent Images
1. A display device with switchable viewing angle, comprising:
- a first pixel, comprising;
a first sub-pixel; and
a second sub-pixel;
a second pixel, disposed to be adjacent to the first pixel, comprising;
a third sub-pixel;
a fourth sub-pixel; and
a fifth sub-pixel, having a light emission direction less than 90 degrees from a surface of said display device; and
a detection circuit, for detecting a primary target and a secondary target;
wherein, when operating in a first viewing angle mode, the fifth sub-pixel is configured to be enabled, and the display device displays in a first viewing angle;
wherein, when operating in a second viewing angle mode, the fifth sub-pixel is configured to be disabled, and the display device displays in a second viewing angle;
wherein the display device is set to be operated in the first viewing angle mode from the second viewing angle mode when said secondary target is detected, and the display device is set to be operated in the second viewing angle mode, and disabling the fifth sub-pixel when only said primary target is detected;
wherein, said first viewing angle is narrower than said second viewing angle, and the fifth sub-pixel has a light emission direction less than 90 degrees from the surface of said display device; and
wherein a primary display data is provided to the first sub-pixel, the second sub-pixel, and the third sub-pixel, and a secondary display data is provided to the fourth sub-pixel according to the primary display data.
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Abstract
A display device with switchable viewing angle includes a first pixel and a second pixel. The first pixel has a first sub-pixel and a second sub-pixel. The second pixel has a third sub-pixel, a fourth sub-pixel and a fifth sub-pixel. The fifth sub-pixel is configured to be enabled when operating in a narrow viewing angle mode and to be disabled when operating in a wide viewing angle mode. When the fifth sub-pixel is enabled, each viewing angle of the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel is narrower than that when the fifth sub-pixel is disabled.
7 Citations
18 Claims
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1. A display device with switchable viewing angle, comprising:
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a first pixel, comprising; a first sub-pixel; and a second sub-pixel; a second pixel, disposed to be adjacent to the first pixel, comprising; a third sub-pixel; a fourth sub-pixel; and a fifth sub-pixel, having a light emission direction less than 90 degrees from a surface of said display device; and a detection circuit, for detecting a primary target and a secondary target; wherein, when operating in a first viewing angle mode, the fifth sub-pixel is configured to be enabled, and the display device displays in a first viewing angle; wherein, when operating in a second viewing angle mode, the fifth sub-pixel is configured to be disabled, and the display device displays in a second viewing angle; wherein the display device is set to be operated in the first viewing angle mode from the second viewing angle mode when said secondary target is detected, and the display device is set to be operated in the second viewing angle mode, and disabling the fifth sub-pixel when only said primary target is detected; wherein, said first viewing angle is narrower than said second viewing angle, and the fifth sub-pixel has a light emission direction less than 90 degrees from the surface of said display device; and wherein a primary display data is provided to the first sub-pixel, the second sub-pixel, and the third sub-pixel, and a secondary display data is provided to the fourth sub-pixel according to the primary display data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An operation method of a display device with switchable viewing angle, the display device comprises a first pixel and a second pixel, said first pixel having a first sub-pixel and a second sub-pixel, said second pixel having a third sub-pixel, a fourth sub-pixel, and a fifth sub-pixel, the operation method comprising:
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detecting a primary target and a secondary target; setting the display device to be operated in the first viewing angle mode from a second viewing angle mode when said secondary target is detected; and setting the display device to be operated in the second viewing angle mode, and disabling the fifth sub-pixel when only the primary target is detected; wherein, when operating in the first viewing angle mode, the fifth sub-pixel is enabled and the display device displays in a first viewing angle; wherein, when operating in the second viewing angle mode, the fifth sub-pixel is disabled, and the display device displays in a second viewing angle; wherein, the first viewing angle is narrower than the second viewing angle, and the fifth sub-pixel has a light emission direction less than 90 degrees from a surface of said display device; and wherein a primary display data is provided to the first sub-pixel, the second sub-pixel, and the third sub-pixel, and a secondary display data is provided to the fourth sub-pixel according to the primary display data. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification