# US 10,319,311 B2 · Display system with adjustment for brightness perceived by user's eyes > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,319,311 B2 - Document ID: US10319311B2 - Status: Granted - Kind: B2 - Application number: 15/441,265 - Filed: 2017-02-24 - Published: 2018-08-16 - Granted: 2019-06-11 - Earliest claimed: 2017-02-16 - Assignees: Novatek Microelectronics Corp. - Applicants: Novatek Microelectronics Corp. - Inventors: Yuan-Jia Du - Web page: https://patentgrep.com/patent/US10319311B2 ## CPC - G09G 3/3406: {Control of illumination source (illumination devices structurally associated with liquid crystal cells G02F1/1336)} - G06V 40/161: {Detection; Localisation; Normalisation} - G06V 40/193: {Preprocessing; Feature extraction} - G09G 3/20: for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} - G09G 3/2092: {Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto (suitable for both CRT and flat panel G09G5/003; specific for a CRT G09G1/165)} - G06V 20/59: inside of a vehicle, e.g. relating to seat occupancy, driver state or inner lighting conditions - G09G 2320/0626: for control of overall brightness - G09G 2320/064: by time modulation of the brightness of the illumination source - G09G 2354/00: Aspects of interface with display user - G09G 2360/144: the light being ambient light - G09G 2380/10: Automotive applications - 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) - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING ## Abstract A display system, an electronic apparatus and a display adjustment method thereof are provided. The electronic apparatus comprises a display panel, a timing controller circuit and a processing circuit. The display adjustment method of the electronic apparatus comprising: processing, by the timing controller circuit, frame data to be displayed by the display panel; analyzing, by the processing circuit, an image including a face of a person, and comparing an average luminance value of the face area with a threshold to obtain adjustment information with respect to the light perceived by the face; and correspondingly adjusting, by the timing controller circuit, the frame data or at least one display characteristics associated with the frame data according to the adjustment information. Furthermore, the display system comprises the processing circuit for one electronic apparatus, and the display panel and the timing controller for another electronic apparatus. ## Claims ### Claim 1 An electronic apparatus, comprising: a display panel; a timing controller circuit, coupled to the display panel, and configured to process frame data to be displayed by the display panel; and a processing circuit, coupled to the timing controller circuit, and configured to analyze an image including a face of a person to obtain adjustment information with respect to the light perceived by the face, so as to control the timing controller circuit to correspondingly adjust the frame data or at least one display characteristic associated with the frame data according to the adjustment information, wherein the processing circuit comprises: a comparison circuit, configured to compare an average luminance value of a face area in the image with a threshold, so as to obtain a comparison result used to control the timing controller circuit to correspondingly adjust the frame data or the at least one display characteristic associated with the frame data, wherein the threshold is an average luminance value of the image. ### Claim 2 (depends on 1) The electronic apparatus according to claim 1, wherein the processing circuit further comprises: a face detection circuit, receiving the image, and configured to detect the face area with respect to the person in the image to obtain luminance information of the face area. ### Claim 3 (depends on 2) The electronic apparatus according to claim 2, wherein the processing circuit further comprises: an information generation circuit, coupled to the comparison circuit, and configured to obtain the adjustment information based on the comparison result. ### Claim 4 (depends on 2) The electronic apparatus according to claim 2, wherein the processing circuit further comprises: an average calculation circuit, coupled to the face detection circuit and the comparison circuit, and configured to calculate the average luminance value of the face area according to the luminance information of the face area; and a threshold calculation circuit, coupled to the comparison circuit, and configured to determine the threshold according to luminance information of the image. ### Claim 5 (depends on 2) The electronic apparatus according to claim 2, wherein the threshold is an average luminance value of the entire image. ### Claim 6 (depends on 2) The electronic apparatus according to claim 2, wherein the threshold is an average luminance value of a remained image after the face area is excluded from the image. ### Claim 7 (depends on 1) The electronic apparatus according to claim 1, wherein the at least one display characteristic comprises a backlight intensity for displaying the frame data. ### Claim 8 A display adjustment method of an electronic apparatus, wherein the electronic apparatus comprises a display panel, a timing controller circuit and a processing circuit, the display adjustment method comprising: processing, by the timing controller circuit, frame data to be displayed by the display panel; analyzing, by the processing circuit, an image including a face of a person to obtain adjustment information with respect to the light perceived by the face; comparing an average luminance value of a face area with a threshold, so as to obtain a comparison result used to correspondingly adjust the frame data or at least one display characteristic associated with the frame data, wherein the threshold is an average luminance value of the image; and correspondingly adjusting, by the timing controller circuit, the frame data or the at least one display characteristic associated with the frame data according to the adjustment information. ### Claim 9 (depends on 8) The display adjustment method according to claim 8, further comprising: detecting the face area with respect to the person in the image to obtain luminance information of the face area. ### Claim 10 (depends on 9) The display adjustment method according to claim 9, wherein the step of obtaining the adjustment information comprises: obtaining the adjustment information based on the comparison result. ### Claim 11 (depends on 9) The display adjustment method according to claim 9, further comprising: calculating the average luminance value of the face area according to the luminance information of the face area; and determining the threshold according to luminance information of the image. ### Claim 12 (depends on 9) The display adjustment method according to claim 9, wherein the threshold is an average luminance value of the entire image. ### Claim 13 (depends on 9) The display adjustment method according to claim 9, wherein the threshold is an average luminance value of a remained image after the face area is excluded from the image. ### Claim 14 (depends on 8) The display adjustment method according to claim 8, wherein the at least one display characteristic comprises a backlight intensity for displaying the frame data. ### Claim 15 (depends on 8) The display adjustment method according to claim 8, wherein adjusting the frame data comprises adjusting luminance information of the frame data. ### Claim 16 A display system, comprising: a first electronic apparatus, comprising a processing circuit configured to analyze an image including a face of a person to obtain adjustment information with respect to the light perceived by the face; and a second electronic apparatus, comprising a display panel and a timing controller circuit, wherein the timing controller circuit is coupled to the display panel to process frame data to be displayed by the display panel, and the timing controller circuit correspondingly adjusts the frame data or at least one display characteristic associated with the frame data according to the adjustment information, wherein the processing circuit comprises: a comparison circuit, configured to compare an average luminance value of a face area in the image with a threshold, so as to obtain a comparison result used to control the timing controller circuit to correspondingly adjust the frame data or the at least one display characteristic associated with the frame data, wherein the threshold is an average luminance value of the image. ### Claim 17 (depends on 16) The display system according to claim 16, wherein the processing circuit comprises: a face detection circuit, receiving the image, and configured to detect the face area with respect to the person in the image to obtain luminance information of the face area. ### Claim 18 (depends on 17) The display system according to claim 17, wherein the processing circuit further comprises: an information generation circuit, coupled to the comparison circuit, and configured to obtain the adjustment information based on the comparison result. ### Claim 19 (depends on 17) The display system according to claim 17, wherein the processing circuit further comprises: an average calculation circuit, coupled to the face detection circuit and the comparison circuit, and configured to calculate the average luminance value of the face area according to the luminance information of the face area; and a threshold calculation circuit, coupled to the comparison circuit, and configured to determine the threshold according to luminance information of the image. ### Claim 20 (depends on 17) The display system according to claim 17, wherein the threshold is an average luminance value of the entire image. ### Claim 21 (depends on 17) The display system according to claim 17, wherein the threshold is an average luminance value of the image after the face area is excluded from the image. ### Claim 22 (depends on 16) The display system according to claim 16, wherein the at least one display characteristic comprises a backlight intensity for displaying the frame data.