# US 7,609,230 B2 · Display method and system using transmissive and emissive components > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,609,230 B2 - Document ID: US7609230B2 - Status: Granted - Kind: B2 - Application number: 10/948,473 - Filed: 2004-09-23 - Published: 2006-03-23 - Granted: 2009-10-27 - Earliest claimed: 2004-09-23 - Assignees: Hewlett-Packard Development Company, L.P. - Inventors: Gary Dispoto; Sabine Susstrunk; Robert W. G. Hunt - Web page: https://patentgrep.com/patent/US7609230B2 ## CPC - G09G 3/3426: {the different display panel areas being distributed in two dimensions, e.g. matrix} - G09G 5/003: {Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto (specific for a CRT G09G1/165; for a flat panel G09G3/2092)} - G09G 2300/023: Display panel composed of stacked panels - G09G 2320/0646: Modulation of illumination source brightness and image signal correlated to each other - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) ## Abstract A method and system is provided for creating a display and generating images. Creating the display includes receiving a transmissive display component over an emissive display component and positioning each emissive display pixel with one or more transmissive display pixels creating a display surface capable of displaying color images. Displaying images on the display surface includes decomposing image data associated with the image into separate chrominance signal levels and luminance signal levels, displaying the representation of the chrominance signal levels of the image by driving emissive display pixels in correspondence to the chrominance characteristic of the image, generating the representation of the luminance signal levels for display through the emissive display pixels of the emissive display component and filtering the displayed representation of the luminance signal level using transmissive display pixels in accordance with the luminance characteristics of the image. ## Claims ### Claim 1 A method of creating a display device, comprising: receiving a transmissive display component having transmissive display pixels over an emissive display component, wherein the emissive display component has the same or fewer relative emissive display pixels compared with the transmissive display pixels in the transmissive display component; positioning each emissive display pixel with one or more transmissive display pixels creating a display surface capable of displaying color images; associating a luminance signal level with each of the emissive display pixels in the emissive display component; and calibrating the transmissive display pixels with a respective emissive display pixel according to the luminance signal level associated with each emissive display pixel. ### Claim 2 (depends on 1) The method of claim 1 wherein the luminance signal level associated with the emissive display pixel is entered into a vector for subsequent calibration operations. ### Claim 3 (depends on 1) The method of claim 1 wherein the transmissive display component is constructed from a liquid crystal display (LCD) material. ### Claim 4 (depends on 1) The method of claim 1 wherein the transmissive display component is capable of selectively removing a portion of a luminance signal level emitted from the emissive display component in accordance with a luminance value associated with an image to be displayed on the display surface. ### Claim 5 (depends on 1) The method of claim 1 wherein the emissive display component is constructed from a set of materials including: organic light emitting diode (OLED) material, light-emitting polymers, plasma, CRT, and back-lit LCD. ### Claim 6 (depends on 1) The method of claim 1 wherein the emissive display component is self-luminous and capable of emitting a chrominance signal level along with a luminance signal level according to an image to be displayed on the surface. ### Claim 7 (depends on 1) The method of claim 1 wherein the emissive display component and transmissive display component are implemented using an integrated display having backlit capabilities. ### Claim 8 (depends on 1) The method of claim 1 wherein each emissive display pixel in the emissive display component includes red, blue and green subpixel primaries. ### Claim 9 (depends on 1) The method of claim 1 wherein the emissive display component includes more blue subpixel primaries compared with red and green subpixel primaries for increased luminance. ### Claim 10 (depends on 1) The method of claim 1 wherein the luminance signal level to be emitted by the emissive display component is set based upon the desired color saturation of the display. ### Claim 11 (depends on 1) The method of claim 1 wherein the luminance signal level to be emitted by the emissive display component is set based upon the color gamut of the display. ### Claim 12 (depends on 1) The method of claim 1 wherein the luminance signal level to be emitted by the emissive display component is set based upon the color gamut of an image. ### Claim 13 (depends on 1) The method of claim 1 wherein the luminance signal level for one emissive pixel in the emissive display component is set based upon the highest luminance value in a corresponding set of pixels from an image. ### Claim 14 A method of displaying an image having chrominance and luminance characteristics on a surface comprising: decomposing image data associated with the image into separate chrominance signal levels and luminance signal levels; displaying the representation of the chrominance signal levels of the image by driving emissive display pixels in correspondence to the chrominance characteristic of the image; generating the representation of the luminance signal levels for display through the emissive display pixels of the emissive display component; and filtering the displayed representation of the luminance signal level using transmissive display pixels in accordance with the luminance characteristics of the image. ### Claim 15 (depends on 14) The method of claim 14 wherein the image is selected from a set of media including still images, video images, graphics and text. ### Claim 16 (depends on 14) The method of claim 14 wherein the emissive display pixels are part of an emissive display component. ### Claim 17 (depends on 16) The method of claim 16 wherein the emissive display component is implemented using one of the materials selected from a set of materials including: organic light emitting diode (OLED) material, light-emitting polymers, plasma, CRT, and backlit LCD. ### Claim 18 (depends on 17) The method of claim 17 wherein the emissive display component includes red, blue and green subpixel primaries. ### Claim 19 (depends on 16) The method of claim 16 wherein the emissive display component is self-luminous and capable of emitting the representation of the chrominance signal according to the chrominance characteristics of the image to be displayed on the surface. ### Claim 20 (depends on 16) The method of claim 16 wherein the emissive display component of the surface generates the representation of the luminance signal level and that a transmissive display component selectively removes a portion of the representation of the luminance signal level according to the luminance characteristics of the image. ### Claim 21 (depends on 14) The method of claim 14 wherein the transmissive display pixels are part of a transmissive display component. ### Claim 22 (depends on 21) The method of claim 21 wherein the luminance signal levels driving the transmissive display component are constructed from a liquid crystal display (LCD) material. ### Claim 23 (depends on 14) The method of claim 14 wherein the emissive display pixels are driven to display the chrominance characteristics at a first time interval and driven to display the luminance characteristics at a second time interval. ### Claim 24 (depends on 14) The method of claim 14 wherein a chrominance resolution carried by the chrominance signal level is down-sampled to match a lower resolution of the emissive display pixels compared with the pixels associated with the transmissive display component. ### Claim 25 (depends on 24) The method of claim 24 wherein the down-sampled chrominance resolution corresponds to an average value calculated from a set of chrominance values in the image. ### Claim 26 (depends on 14) The method of claim 14 wherein each emissive display pixel in the emissive display component includes red, blue and green subpixel primaries. ### Claim 27 (depends on 14) The method of claim 14 wherein each emissive display pixel uses the same luminance signal level throughout the display surface. ### Claim 28 (depends on 14) The method of claim 14 wherein each emissive display pixel uses a maximum luminance value obtained from a set of luminance values associated with the image. ### Claim 29 (depends on 14) The method of claim 14 wherein the representation of the luminance signal level generated by each emissive display pixel is increased by driving more blue subpixel primaries compared with red and green subpixel primaries in each emissive display pixel. ### Claim 30 (depends on 14) The method of claim 14 wherein the luminance signal level driving the emissive display pixel is set to a luminance value based upon the desired color saturation of the surface. ### Claim 31 (depends on 14) The method of claim 14 wherein the luminance signal level driving the emissive pixels is set to the highest luminance value for a set of transmissive pixels associated with the image. ### Claim 32 A display device for displaying an image, comprising: an emissive display component capable of representing a luminance signal level and a chrominance signal level corresponding to the luminance characteristics and chrominance characteristics in the image; and a transmissive display component positioned over the emissive display component, said transmissive display component having transmissive display pixels capable of filtering the representation of a luminance signal level according to the luminance characteristics in the image. ### Claim 33 (depends on 32) The apparatus of claim 32 wherein the emissive display component has the same or fewer emissive display pixels compared with the number of transmissive display pixels in the transmissive display component. ### Claim 34 (depends on 32) The apparatus of claim 32 wherein the transmissive display component uses a liquid crystal display (LCD) material. ### Claim 35 (depends on 32) The apparatus of claim 32 wherein the transmissive display component is capable of selectively removing a portion of the luminance signal level emitted from the emissive display component in accordance to the luminance characteristics associated with an image. ### Claim 36 (depends on 32) The apparatus of claim 32 wherein the display surface can be arranged according to one or more different aspect ratios. ### Claim 37 (depends on 32) The apparatus of claim 32 wherein the emissive display component uses a display material selected from a set including: organic light emitting diode (OLED) material, light-emitting polymers, plasma, CRT, and backlit LCD. ### Claim 38 (depends on 32) The apparatus of claim 32 wherein a chrominance resolution carried by the chrominance signal level is down-sampled to match a lower resolution of pixels in the emissive display component compared with the pixels associated with the transmissive display component. ### Claim 39 (depends on 38) The apparatus of claim 38 wherein the down-sampled chrominance resolution corresponds to an average value calculated from a set of chrominance value levels in the image. ### Claim 40 An apparatus for creating a display device, comprising: means for receiving a transmissive display component having transmissive display pixels over an emissive display component, wherein the emissive display component has the same or fewer emissive display pixels compared with the transmissive display pixels in the transmissive display component, wherein each of the emissive display pixels is associated with a luminance signal level, and wherein each of the transmissive display pixels is calibrated with a luminance signal level of a respective emissive display pixel; and means for positioning each emissive display pixel with one or more transmissive display pixels creating a display surface capable of displaying color images. ### Claim 41 An apparatus for displaying an image having chrominance and luminance characteristics on a surface comprising: means for decomposing image data associated with the image into separate chrominance signal levels and luminance signal levels; means for displaying the representation of the chrominance signal levels of the image by driving emissive display pixels in correspondence to the chrominance characteristic of the image; means for generating the representation of the luminance signal levels for display through the emissive display pixels of the emissive display component; and means for filtering the displayed representation of the luminance signal level using transmissive display pixels and in accordance with the luminance characteristics of the image. ### Claim 42 A computer readable storage medium on which is embedded one or more computer programs, said one or more computer programs implementing a method for displaying an image having chrominance and luminance characteristics on a surface, said one or more computer programs comprising instructions operable to cause a programmable processor to: decompose image data associated with the image into separate chrominance signal levels and luminance signal levels; display the representation of the chrominance signal levels of the image by driving emissive display pixels in correspondence to the chrominance characteristic of the image; generate the representation of the luminance signal levels for display through the emissive display pixels of the emissive display component; and filter the displayed representation of the luminance signal level using transmissive display pixels and in accordance with the luminance characteristics of the image.