发明授权
- 专利标题: High-uniformity limited-spread point spread function light emitter
- 专利标题(中): 高均匀性扩散点扩散功能光发射器
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申请号: US14404249申请日: 2013-06-04
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公开(公告)号: US09534746B2公开(公告)日: 2017-01-03
- 发明人: Lorne A. Whitehead
- 申请人: A.L. WHITEHEAD LTD.
- 申请人地址: CA Vancouver
- 专利权人: A.L. WHITEHEAD LTD.
- 当前专利权人: A.L. WHITEHEAD LTD.
- 当前专利权人地址: CA Vancouver
- 代理机构: The Salehi Law Group
- 国际申请: PCT/CA2013/000547 WO 20130604
- 国际公布: WO2013/181745 WO 20131212
- 主分类号: G09F13/04
- IPC分类号: G09F13/04 ; G09F13/08 ; F21K99/00 ; G02F1/1335 ; G09F13/22
摘要:
Simple yet powerful mathematical solutions are provided for producing a minimally-spreading de-pixelization light spread function with four-fold bilateral symmetry to create a High Dynamic Range LED-LCD display where the point spread functions of each LED regardless of intensity can be designed such that adjacent rows and columns of LEDs within an array blend smoothly and uniformly to create a non-pixelated continuous image in two dimensions on the diffuser screen and with minimal luminance overlap to minimize the computational demands required at video rate of an HDR display. The resulting image has substantially visually perfect uniform luminance, linear luminance and quadratic luminance gradient. Additionally a new display architecture is unveiled and described that emulates the mathematically developed light spread functions mentioned. This new architecture comprises several sub-aspects to tune the display device to the desired design requirements.