# US 10,768,506 B2 · Liquid crystal display panel and display apparatus using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,768,506 B2 - Document ID: US10768506B2 - Status: Granted - Kind: B2 - Application number: 15/561,694 - Filed: 2017-08-15 - Published: 2020-05-07 - Granted: 2020-09-08 - Earliest claimed: 2017-07-07 - Assignees: Hkc Corporation Limited; Chongqing Hkc Optoelectronics Technology Co., Ltd. - Applicants: HKC Corporation Limited; Chongqing HKC Optoelectronics Technology Co., Limited - Inventors: Yu-Jen Chen - Web page: https://patentgrep.com/patent/US10768506B2 ## CPC - G02F 1/29: for the control of the position or the direction of light beams, i.e. deflection - G02F 1/139: based on orientation effects in which the liquid crystal remains transparent - H10F 39/184: {Infrared image sensors} - H10F 39/8057: {Optical shielding} - H10F 39/806: {Optical elements or arrangements associated with the image sensors} - G02F 1/13312: {Circuits comprising photodetectors for purposes other than feedback} - G02F 1/294: {Variable focal length devices} - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS - H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION ## Abstract The present invention provides a display panel and its application, the display panel comprises a first substrate, a second substrate, a liquid crystal layer disposed between the first substrate and the second substrate, an image sensing module disposed on the second substrate facing to a side of the first substrate, a driving module disposed on the second substrate facing to the side of the first substrate for driving a plurality of liquid crystal molecules distributed in the liquid crystal layer. Wherein, the liquid crystal molecules disposing between the image sensing module and the first substrate is configured to form a liquid crystal lens in response to a vertical electric field between the first and second substrates. The image sensing module is configured for receiving the image light focused by the liquid crystal lens. ## Claims ### Claim 1 A display panel, comprising: a first substrate; a second substrate; a liquid crystal layer, disposed between the first substrate and the second substrate; an image sensing module, disposed on the second substrate facing a side of the first substrate; and a driving module, disposed on the second substrate facing the side of the first substrate for driving a plurality of liquid crystal molecules distributed in the liquid crystal layer; wherein, the plurality of liquid crystal molecules are disposed between the image sensing module and the first substrate, a vertical electric field is formed between the first substrate and the second substrate and drives the plurality of liquid crystal molecules to form a liquid crystal lens, the image sensing module is configured to receive the image light focused by the liquid crystal lens, and the liquid crystal lens is configured to adjust the focus of the image sensing module. ### Claim 2 (depends on 1) The display panel according to claim 1, wherein the image sensing module is arranged in parallel with the driving module. ### Claim 3 (depends on 1) The display panel according to claim 1, wherein the image sensing module comprises an optical sensor. ### Claim 4 (depends on 3) The display panel according to claim 3, wherein the optical sensor is photodiode. ### Claim 5 (depends on 3) The display panel according to claim 3, wherein the optical sensor is phototransistors. ### Claim 6 (depends on 3) The display panel according to claim 3, wherein the optical sensor comprises a material selected from a narrow bandgap organic and inorganic materials, and the energy band gap of the material is less than 1.12 eV. ### Claim 7 (depends on 1) The display panel according to claim 1, further comprising a light shielding region disposed between the first substrate and the liquid crystal lens. ### Claim 8 (depends on 7) The display panel according to claim 7, wherein the light shielding region is configured to transmit an infrared light. ### Claim 9 (depends on 1) The display panel according to claim 1, further comprising a driving electrode disposed on the first substrate facing to the second substrate and corresponding to the location of the liquid crystal lens, and configured to tilt the liquid crystal molecules. ### Claim 10 (depends on 9) The display panel according to claim 9, wherein the driving electrode is configured to change the vertical electric field formed between the first substrate and the second substrate. ### Claim 11 A display apparatus comprising a backlight module, a controller and a display panel, the display panel comprising: a first substrate; a second substrate; a liquid crystal layer, disposed between the first substrate and the second substrate; an image sensing module, disposed on the second substrate facing a side of the first substrate; and a driving module, disposed on the second substrate facing the side of the first substrate for driving a plurality of liquid crystal molecules distributed in the liquid crystal layer; wherein, the plurality of liquid crystal molecules are disposed between the image sensing module and the first substrate, a vertical electric field is formed between the first substrate and the second substrate and drives the plurality of liquid crystal molecules to form a liquid crystal lens, the image sensing module is configured to receive the image light focused by the liquid crystal lens, and the liquid crystal lens configured for adjusting the focus of the image sensing module. ### Claim 12 (depends on 11) The display apparatus according to claim 11, wherein the image sensing module is arranged in parallel with the driving module. ### Claim 13 (depends on 11) The display apparatus according to claim 11, wherein the image sensing module comprises an optical sensor. ### Claim 14 (depends on 13) The display apparatus according to claim 13, wherein the optical sensor is photodiode. ### Claim 15 (depends on 13) The display apparatus according to claim 13, wherein the optical sensor is phototransistors. ### Claim 16 (depends on 13) The display apparatus according to claim 13, wherein the optical sensor comprises a material selected from a narrow bandgap organic and inorganic materials, and the energy band gap of the material is less than 1.12 eV. ### Claim 17 (depends on 11) The display apparatus according to claim 11, further comprising a light shielding region disposed between the first substrate and the liquid crystal lens. ### Claim 18 (depends on 17) The display apparatus according to claim 17, wherein the light shielding region is configured to transmit an infrared light. ### Claim 19 (depends on 11) The display apparatus according to claim 11, further comprising a driving electrode disposed on the first substrate facing to the second substrate and corresponding to the location of the liquid crystal lens and configured to tilt the liquid crystal molecules, the driving electrode configured to change the vertical electric field between the first substrate and the second substrate. ### Claim 20 A display panel, comprising: a first substrate; a second substrate; a liquid crystal layer, disposed between the first substrate and the second substrate and, having a plurality of liquid crystal molecules distributed; an image sensing module, disposed on the second substrate facing a side of the first substrate, having an optical sensor; and a driving module, disposed on the second substrate facing the side of the first substrate and in parallel with the image sensing module, for driving the plurality of liquid crystal molecules distributed in the liquid crystal layer; wherein, a light shielding region is configured to transmit an infrared light disposed on the first substrate facing to the second substrate, the plurality of liquid crystal molecules are disposed between the image sensing module and the first substrate, a vertical electric field is formed between the first substrate and the second substrate and drives the plurality of liquid crystal molecules to form a liquid crystal lens, the image sensing module is configured to receive the image light focused by the liquid crystal lens, and the liquid crystal lens is configured to adjust the focus of the image sensing module.